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TYS - SEA

$173 Find cheap flights from Knoxville to Seattle

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Knoxville to Seattle departing on 7/1. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
0 bags
Wed 7/10
Wed 7/17

Search hundreds of travel sites at once for deals on flights to Seattle

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Knoxville to Seattle, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Knoxville to Seattle, as well as popular online travel agencies
In the last 7 days travelers have searched 42,898,604 times on KAYAK, and here is why:

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Cheap flight deals from Knoxville to Seattle (TYS-SEA)

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Knoxville to Seattle that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
6:17 pm - 8:37 amTYS-SEA
17h 20m1 stop
9:37 am - 5:17 pmSEA-TYS
28h 40m1 stop
$354Frontier
Find Deal
Mon, Aug 26 - Tue, Sep 3
9:00 am - 12:35 amTYS-SEA
18h 35m3 stops
11:59 pm - 11:34 amSEA-TYS
8h 35m1 stop
Wed, Jul 17 - Thu, Aug 8
9:00 am - 8:00 pmTYS-SEA
14h 00m2 stops
11:59 pm - 11:34 amSEA-TYS
8h 35m1 stop
Wed, Jul 17 - Thu, Aug 8
11:43 am - 9:58 pmTYS-SEA
13h 15m1 stop
6:00 am - 9:07 pmSEA-TYS
12h 07m1 stop
$367American Airlines
Find Deal
Wed, Jul 17 - Thu, Aug 8
5:51 pm - 9:10 amTYS-SEA
18h 19m1 stop
8:12 pm - 9:39 pmSEA-TYS
22h 27m1 stop
$374Frontier
Find Deal
Sat, Jun 22 - Sun, Jun 30
9:07 pm - 4:15 pmTYS-SEA
22h 08m2 stops
5:10 am - 11:27 amSEA-TYS
27h 17m3 stops
Mon, Jul 29 - Sat, Aug 3
8:23 am - 9:11 pmTYS-SEA
15h 48m1 stop
11:50 pm - 4:24 pmSEA-TYS
13h 34m1 stop
$392American Airlines
Find Deal
Thu, Oct 17 - Mon, Oct 21
4:48 pm - 7:57 amTYS-SEA
18h 09m1 stop
12:55 pm - 10:36 pmSEA-TYS
30h 41m2 stops
$481United Airlines
Find Deal
Thu, Sep 12 - Wed, Sep 18
6:46 am - 6:13 pmTYS-SEA
14h 27m2 stops
5:07 am - 10:16 pmSEA-TYS
14h 09m1 stop
$500United Airlines
Find Deal
Thu, Nov 14 - Sun, Nov 17
4:02 pm - 8:34 pmTYS-SEA
7h 32m1 stop
7:15 am - 7:01 pmSEA-TYS
8h 46m1 stop
$565Delta
Find Deal
Mon, Aug 5 - Thu, Aug 8

Flights from Knoxville to Seattle - Travel Insights & Trends

Get data-powered insights and trends into flights from Knoxville to Seattle to help you find the cheapest flights, the best time to fly and much more.

What’s the cheapest day of the week to fly from Knoxville to Seattle?

The average price of all flights from Knoxville to Seattle clicked on KAYAK for each day over the last 12 months.
When flying from Knoxville to Seattle, you should consider leaving on a Tuesday and avoid Mondays if you are looking for the best rates. For your return to Knoxville, you’ll find the best rates on Mondays and the most expensive ones on Sundays.

What is the cheapest month to fly from Knoxville to Seattle?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Knoxville to Seattle, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.
The cheapest month for flights from Knoxville to Seattle is October, where tickets cost $568 on average. On the other hand, the most expensive months are June and July, where the average cost of tickets is $760 and $727 respectively.

How far in advance should I book a flight from Knoxville to Seattle?

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from Knoxville to Seattle, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price on the flight from Knoxville to Seattle, you should book around 2 weeks before departure. For the absolute cheapest price, our data suggests you should book 25 days before departure.

Which airlines provide the cheapest flights from Knoxville to Seattle?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
In the last 3 days, American Airlines offered the best one-way deal for that route, at $264. KAYAK users also found Knoxville to Seattle round-trip flights on Frontier from $354 and on American Airlines from $367.

Good to know

Low season

February

High season

June

Cheapest flight

$173
Best time to beat the crowds with an average 5% drop in price.
Most popular time to fly with an average 19% increase in price.
Flight from Knoxville to Seattle

When to book flights from Knoxville to Seattle

Are your dates flexible? Find out the best times to travel from Knoxville to Seattle based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Knoxville to Seattle

  • How convenient are Knoxville to Seattle flights for Persons with Reduced Mobility (PRMs)?

    Although most airlines consider PRMs, you will conveniently fly from Knoxville to Seattle via United Airlines. Priority boarding for PRMs and their families, free wheelchair assistance, and a team of specially trained staff members to provide specialized services to PRMs are just a few of the airline's special access services.

  • What pet-friendly airline should I consider for my flight from Knoxville to Seattle?

    Consider booking your flight ticket with Frontier from Knoxville to Seattle with your furry friend. Frontier's pet-friendly allows smaller pets that can fit under your seat to travel in the cabin. Larger domestic pets may have to be transported as cargo in pressure- and temperature-controlled carriers.

  • Which eco-friendly airline should I consider for my Knoxville to Seattle flight?

    Consider using United Airlines for your flights from Knoxville to Seattle if you want to travel sustainably. The airline has invested in sustainable biofuels, fuel-efficient aircraft, recycling initiatives, and energy-saving technologies to reduce waste. To lessen its environmental impact, United Airlines collaborates with environmental organizations to advocate for carbon offsetting initiatives.

  • How can I connect to the city center after deplaning from m Knoxville to Seattle flight at Seattle/Tacoma Intl (SEA)?

    For most travelers, Seattle/Tacoma Intl (SEA) is the destination airport, but not the final destination. To connect from Seattle/Tacoma Intl (SEA) to the city center, there are various transport options. After deplaning from your Knoxville to Seattle flight, you will either board Link Light Rail, a taxi, ride-share services like Lyft or a public means of transport, such as Metro Transit Bus Route 40 and 124. Buses and trains offer more budget-friendly and reliable options than taxis.

  • What is the cheapest flight from Knoxville to Seattle?

    In the last 3 days, the lowest price for a flight from Knoxville to Seattle was $173 for a one-way ticket and $354 for a round-trip.

  • Do I need a passport to fly between Knoxville and Seattle?

    Even though you are not required to have a passport, keep in mind that an official ID is needed to board the airplane.

  • Which aircraft models fly most regularly from Knoxville to Seattle?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Knoxville to Seattle?

    oneworld, Star Alliance, and SkyTeam are the airline alliances operating flights between Knoxville and Seattle, with SkyTeam being the most commonly used for this route.

  • Which is the best airline for flights from Knoxville to Seattle, Delta or United Airlines?

    The two airlines most popular with KAYAK users for flights from Knoxville to Seattle are Delta and United Airlines. With an average price for the route of $733 and an overall rating of 8.0, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $697 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from Knoxville to Seattle?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Knoxville to Seattle.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Knoxville to Seattle?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Seattle from Knoxville is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Knoxville to Seattle?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Seattle with an airline and back to Knoxville with another airline. Booking your flights between Knoxville and SEA can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Knoxville to Seattle?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Seattle from Knoxville up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

KAYAK’s top tips for finding a cheap flight from Knoxville to Seattle

  • Most airlines connecting Knoxville (TYS) to Seattle (SEA) offer flights with at least a single layover. Some of the common layovers to expect on your flight from Knoxville to Seattle are Chicago O'Hare Intl (ORD), Washington, D.C. Dulles Intl (IAD), and Dallas/Fort Worth (DFW).
  • Besides serving as the major destination airport for travelers connecting to Seattle, Seattle/Tacoma Intl (SEA) is also the destination airport for travelers who may be connecting to its nearby cities. Some of these cities are; Victoria, Surrey, and Burnaby. You can easily travel to these cities by renting a car or taxi.
  • To rent a car for movement flexibility after deplaning from your flight from Knoxville to Seattle, you will visit any onsite car rentals conveniently accessible at the Sea-Tac Airport Rental Vehicle Facility within the airport premises. A courtesy bus connects each terminal to the car rental facility.
  • Alaska Airlines is among the family-friendly airlines to consider for your flight from Knoxville to Seattle with children. Besides priority boarding and kid-friendly entertainment, the airline allows families with children under two to travel free on their parent's laps.
  • Among the transport options for travelers connecting from Downtown Knoxville to McGhee Tyson (TYS) are taxis and Knoxville Area Transit (KAT) buses. Among these options, taxis offer a quicker and more flexible option, but they are slightly more expensive compared to buses.
See more tips

Top 5 airlines serving from Knoxville to Seattle

 
See real verified KAYAK customer reviews for airlines flying from Knoxville to Seattle. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Knoxville to Seattle? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
Alaska AirlinesOverall score based on 9254 reviews
8.6Crew
7.9Comfort
8.2Boarding
7.3Entertainment
7.3Food
Airline reviews

It was okay. Gate crew could be better organized. Wheelchair service for my mother was late as we deplaned. Flight crew was alright. I’ve seen better and worse.

6.0 GoodNick, Jun 2024RDU - SEA
Read more about Alaska Airlines reviews

It was okay. Gate crew could be better organized. Wheelchair service for my mother was late as we deplaned. Flight crew was alright. I’ve seen better and worse.

Great! Wish we had more Alaska flight options in MSP

I was happy with my whole experience, and it was a smooth flight. Thank you

The people who worked for Alaska Airlines, both on the ground at O'Hare and during the flight, made it remarkable for me. Their customer service is incredible; they're kind of like the Nordstrom of the sky.

Thw crew was excellent but due to poor scheduling Alaska Airlines routed our flight to LAX then LAX to Seattle. This delayed our arrival at the airport by at least 5 hrs and really inconvenienced us in many ways...

We loved the extra legroom on the flight and the fact that we didn’t have any one beside us.Everything was a n time and satisfactory.

I booked flight for my son. He had an epilepsy episode while in line boarding the plane. No refund. WTF? Never again book with Kayak.

The queue before check-in was long and slow moving due to too few desks being open. THEN, WHEN WE FINALLY REACHED THE CHECK-IN DESK WE WERE CHARGED US$70 FOR 2 BAGS. What rubbed salt into the wound was the incredible number of large bags in people’s “carry on”.

I was unfortunately placed in the middle seat. Very, Very cramped.

Flight was on time, boarding was efficient, and crew was pleasant. It would have been a nice feature to have the seatback tvs as this was a cross country flight, but entertainment is not a requirement.

Delta crushed it. Flight attendant in first was attentive and just never stopped. Honestly one of the best domestic flights I’ve been on.

Delta is one of the best airlines I have flown

It was a Red-Eye flight so was not comfortable enough to sleep, but seat was as expected. Crew was great and in-flight entertainment was excellent. Flight was smooth

Standard economy seats on Deltas 767 were better than Alaska premium seats on their 737 MAX9; more legroom, wider seats. Entertainment was great, no ipad or phone required. Could have included a meal service.

Plane was turned around due to fog half way into the flight, Delta did not properly direct passengers to stay on same flight and instead failed to properly rebook on Alaska

The boarding process was terrible especially with an indirect flight Chicago to Seattle to San Diego was terrible talking about we overbooked a flight idk if I’d take this airline ever again we got off our flight from Chicago to Seattle and we traveled for business and they told us our connecting flight was over booked and their was no seats asking people to take a delayed next flight and they don’t tell anyone coughing to wear masks seats 30A-B were terrible during the flight no one wants to sit next to people coughing all around I don’t want to be sick traveling for work or get sick anytime it’s very upsetting the staff doesn’t take this stuff serious to tell them to wear masks when they see people coughing and sneezing

Flight was on time, the crew was personable & professional, & the plane arrived early which was nice.

This flight landed early, but deplaned late. We were stuck sitting and waiting for a gate for over an hour

My flight was very clean and the location was comfortable. The service was great. A satisfying flight!

I appreciated being upgraded. I was very disappointed with my 13 hr layover in Seattle to geg, while my friends who flew Alaska made it home as scheduled. I had to reserve a hotel on my dime.

It is a modern tragedy that any airline expects you to travel for 14 hours in such discomfort and that the only way to add comfort is exorbitant prices. I was in pain by the time we landed. Shameful.

Original plane sidelined. Had to wait an hour for replacement.

Crew was very cooperative and professional. Passenger's first checked in bag should be free.

No real agent onsite helping you for missing luggage there. Not like the other airline next to UA desk, they have staff attending in their desk assisting answer/helping luggage issue, even after midnight.

Horrible, the flights kept delaying, so it is obvious that we won't be able to make it to the next connection. No easier/real agent on site to help you figure this out. UA agent on other counters refuse to assist you and direct us to use the QR code/call customer service. So inefficient and poor. While technology seems convenient, but it's not the best interest/experience for customers need help while there is active issue need assistance.

After the morning frenzy of 35 min wait through CLT security at 4;30 AM, it was nice to have a smooth pleasant boarding experience. This 6:30 AM flight was not full. We were able to get seated swiftly and took off promptly. Nice touch they distributed the old fashioned headsets with 8 mm jacks. Snacks were decent and arrival was uneventful.

My window shade didn’t work. So I missed coming into my city. ☹️

Flight was delayed in the gate by 5 hours and ultimately cancelled- rebooking service by United agents was terrible

Flight was delayed due to the late arrival of the catering truck, which is quite unacceptable. There was a beverage service, but no pretzel, or cookie, or nuts were served in coach.

Not worth the price of premium class ticket paid, felt more like steerage.

This is by far the worst experience I have had with American Airlines. The start of this trip was a complete disaster. I purposely planned my trip so that I would weather any delays so that I could make very important meeting at the Pentagon. My flight was cancelled because of maintenance and I was put on the first flight the next day but I was late to the meeting. After a long week at the Pentagon I just wanted to go home and my flight home which was early in the day was delayed. Eventually the flight was delayed until the next day. I was not authorized a hotel room because DCA was my point of origin. So I paid for a hotel out of pocket. The flight this morning was boarded then deplaned because the aircraft was hot. The flow of information was not happening in DCA and made it worse when the news was bad. I am going to take a break from American for my next few military flights. Hopefully whatever has been going on with American Airlines will be resolved.

We had a 2 hour delay. The seats were smaller than most other airlines. The person in front of us wanted to lay back and we had to stop her because she was pressing against my girlfriend’s legs. We had to ask her to sit up and not lay back due to the lack of room.

Everything was fine once we actually got on our flight. It was more then annoying they canceled (delayed) our flight. We lost out on a day of our trip along with money on our stay. Plus we had to book another hotel. So expensive.

This flight was canceled and delayed several times without explanation. The plane was freezing cold and no wifi for messaging. Getting off the plane was terribly unorganized and felt like it took forever….

The flight was delayed several times without explanation. The seats were terribly uncomfortable and wifi isn’t included. All these make for a less than ideal flight.

The flights was delayed by hours and it was the firmest landing I have experienced in my life. My back is still sore.

Internet service was erratic. Crew service was poor and slow. My luggage on this non-stop flight was lost and not recovered

Terrible. I didn’t fly and I had an important meeting the next day.

Liked - nothing. Disliked - delayed 35+ min sitting on the plane. Caused me to miss my connection in Charlotte. American Airlines is the worst US Air Carrier company with atrocious customer service.

i suspect i caught flu on this flight as i could hear someone coughing a few rows back and ended up with flu a few days later. also tiresome to have to watch movies on my device by holding up smartphone screen, would have liked to have in seat display.

I strongly dislike Frontier. I find them barebones, the seats not particularly comfortable, the nickel and diming is maddening, the app is TERRIBLE - super confusing to navigate, and the last 4 frontier flights I have flown have been on AVERAGE 2 hours late, one ruining a fancy night out in Vegas with reservations made well in advance, which was nodded to with a measly 5000 miles, which translates to almost nothing. At least credit a free checked bag or something.

8 hr delay. had to buy another ticket with another airline

Four and a half hour delay in total. What frustrates me most is the poor communication and disorganization.

I appreciated the upgrade to free cary-on bag and seat selection at no charge

FRONTIER SUCKS! The agent downstairs tricked me into booking, just to get to the gate. At the gate, they told me they couldn't help. I then called Customer Service. They and the gate attendants kept blaming each other. Neither side was willing to help the customer.

The agent at check-in was strident, unwelcoming, and condescending to customers ahead of me.

Flight was delay 9hrs and nothing was provided at airport, had to go and get a room to sleep in, paid for Uber back and fort with no offers until we landed back home a 1hr later for a $75 voucher for a future flight.

Didn't like anything..entire crew was very rude to everyone on the flight. Plane old and the trays fall down on you the while time you're flying. Charged more for a carry on bag than for the plane ticket itself. Did make it from point a to point b, but worth the extra money to fly with another airline

9 hours of delay!! Was not able to check my luggage that I paid for!!!

It was delayed 9 hours for operational reasons, despite the plane arriving to the airport on time.

Book cheap flights from Knoxville to Seattle

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Knoxville to Seattle found on KAYAK in the last 72 hours.
7/1Mon
1 stop
14h 48mTYS-SEA
$173
8/20Tue
2 stops
21h 41mTYS-SEA
$180
7/1Mon
3 stops
29h 59mTYS-SEA
$209
9/19Thu
2 stops
19h 59mTYS-SEA
$226
7/25Thu
3 stops
21h 05mTYS-SEA
$242
8/20Tue
1 stopAmerican Airlines
7h 54mTYS-SEA
$264
8/20Tue
3 stopsUnited Airlines
17h 59mTYS-SEA
$273
9/19Thu
1 stopDelta
8h 20mTYS-SEA
$284
7/21Sun
1 stopAmerican Airlines
7h 55mTYS-SEA
$364
6/30Sun
1 stopUnited Airlines
20h 15mTYS-SEA
$373

Search by stops

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Last minute flights from Knoxville to Seattle

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from Knoxville to Seattle that are departing in the next 10 days.
6/13Thu
multi-stop
17h 20mTYS-SEA
6/17Mon
multi-stop
7h 53mSEA-TYS
$548
6/13Thu
multi-stop
17h 20mTYS-SEA
6/17Mon
multi-stop
28h 54mSEA-TYS
$553
6/13Thu
multi-stop
35h 49mTYS-SEA
6/17Mon
multi-stop
28h 54mSEA-TYS
$594
6/13Thu
multi-stop
35h 49mTYS-SEA
6/17Mon
multi-stop
32h 15mSEA-TYS
$680
6/13Thu
multi-stopAmerican Airlines
13h 15mTYS-SEA
6/17Mon
multi-stopAmerican Airlines
12h 55mSEA-TYS
$757
6/13Thu
multi-stopAmerican Airlines
13h 15mTYS-SEA
6/16Sun
multi-stopAmerican Airlines
16h 51mSEA-TYS
$897
6/13Thu
multi-stopAmerican Airlines
17h 36mTYS-SEA
6/16Sun
multi-stopAmerican Airlines
16h 51mSEA-TYS
$902
6/13Thu
multi-stopAmerican Airlines
9h 23mTYS-SEA
6/16Sun
multi-stopAmerican Airlines
10h 22mSEA-TYS
$2,698

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Knoxville - Seattle Flights

Departure:

Knoxville (TYS)United States

Destination:

Seattle (SEA)United States

Return flight deals:

Seattle - Knoxville

Cabin classes: