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ICN - ONT

$324 Find cheap flights from Incheon to Ontario

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Incheon Intl to Ontario departing on 9/10. 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 Ontario

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Incheon to Ontario, 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 Incheon to Ontario, 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 Incheon Intl to Ontario (ICN-ONT)

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Incheon Intl to Ontario 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
4:50 pm - 12:32 pmICN-ONT
35h 42m2 stops
7:40 am - 3:00 pmONT-ICN
15h 20m1 stop
$550United Airlines
Find Deal
Tue, Sep 3 - Wed, Sep 25
4:50 pm - 5:56 pmICN-ONT
17h 06m1 stop
6:35 pm - 4:20 amONT-ICN
17h 45m1 stop
$551United Airlines
Find Deal
Tue, Sep 10 - Tue, Oct 1
12:35 pm - 6:40 pmICN-ONT
22h 05m1 stop
12:10 am - 11:10 amONT-ICN
19h 00m1 stop
$930China Airlines
Find Deal
Tue, Sep 10 - Mon, Sep 30
12:35 pm - 6:40 pmICN-ONT
22h 05m1 stop
12:45 am - 11:10 amONT-ICN
18h 25m1 stop
$931China Airlines
Find Deal
Sat, Sep 7 - Mon, Sep 9
5:25 pm - 8:02 pmICN-ONT
18h 37m1 stop
11:59 pm - 4:25 pmONT-ICN
23h 26m1 stop
$938American Airlines
Find Deal
Wed, Oct 2 - Wed, Nov 6
5:25 pm - 8:02 pmICN-ONT
18h 37m1 stop
11:59 pm - 3:15 pmONT-ICN
23h 16m1 stop
$1,011American Airlines
Find Deal
Wed, Sep 4 - Wed, Sep 25
9:00 am - 5:56 pmICN-ONT
24h 56m2 stops
7:40 am - 6:35 pmONT-ICN
18h 55m2 stops
$1,164
Find Deal
Sun, Sep 8 - Thu, Sep 12
9:00 am - 5:56 pmICN-ONT
24h 56m2 stops
7:40 am - 6:55 pmONT-ICN
19h 15m2 stops
$1,202
Find Deal
Thu, Aug 29 - Fri, Sep 6
9:25 pm - 9:45 pmICN-ONT
16h 20m1 stop
9:50 am - 7:00 pmONT-ICN
17h 10m1 stop
$1,425Hawaiian Airlines
Find Deal
Sun, Jun 30 - Sat, Aug 3
9:25 pm - 9:45 pmICN-ONT
16h 20m1 stop
9:40 am - 7:00 pmONT-ICN
17h 20m1 stop
$1,440Hawaiian Airlines
Find Deal
Mon, Jun 24 - Fri, Jun 28

Flights from Incheon Intl to Ontario - Travel Insights & Trends

Get data-powered insights and trends into flights from Incheon Intl to Ontario 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 Seoul Incheon Airport to Ontario?

The average price of all flights from Incheon Intl Airport to Ontario clicked on KAYAK for each day over the last 12 months.
If your flying dates are flexible, you should consider flying to Ontario on a Thursday, as we generally find the cheapest rates on that day for this route. On the other hand, Monday is the most expensive day to fly from Seoul Incheon Airport to Ontario. For your return ticket, we recommend flying on a Tuesday and avoiding Saturdays for the best deals.

Which airlines provide the cheapest flights from Seoul Incheon Airport to Ontario?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
In the past 3 days, the cheapest one-way tickets to Ontario from Seoul Incheon Airport were found on United Airlines ($324) and Hawaiian Airlines ($489), and the lowest round-trip tickets were found on United Airlines ($550) and China Airlines ($930).

Good to know

Low season

November

High season

December

Cheapest flight

$324
Best time to beat the crowds with an average 45% drop in price.
Most popular time to fly and prices are also 17% lower on average.
Flight from Seoul Incheon Airport to Ontario

When to book flights from Incheon Intl to Ontario

Are your dates flexible? Find out the best times to travel from Incheon Intl to Ontario 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 Incheon to Ontario flights

  • What is the cheapest flight from Incheon Intl Airport to Ontario?

    In the last 3 days, the lowest price for a flight from Incheon Intl Airport to Ontario was $324 for a one-way ticket and $550 for a round-trip.

  • Do I need a passport to fly between Seoul Incheon Airport and Ontario?

    Yes, you’ll need a passport to travel to Ontario from Seoul Incheon Airport.

  • Which airports will I be using when flying from Seoul Incheon Airport to Ontario?

    On your way to Ontario, you’ll fly out from Incheon Intl. You’ll be landing at Ontario.

  • Which aircraft models fly most regularly from Seoul Incheon Airport to Ontario?

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

  • Which airline alliances offer flights from Seoul Incheon Airport to Ontario?

    Star Alliance, oneworld, and SkyTeam are the airline alliances operating flights between Seoul Incheon Airport and Ontario, with SkyTeam being the most commonly used for this route.

  • How does KAYAK find such low prices on flights from Seoul Incheon Airport to Ontario?

    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 Seoul Incheon Airport to Ontario.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Seoul Incheon Airport to Ontario?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Ontario from Seoul Incheon Airport 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 Seoul Incheon Airport to Ontario?

    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 Ontario with an airline and back to Seoul Incheon Airport with another airline. Booking your flights between Seoul Incheon Airport and ONT 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 Seoul Incheon Airport to Ontario?

    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 Ontario from Seoul Incheon Airport up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top airline flying from Incheon Intl to Ontario

 
See real verified KAYAK customer reviews for airlines flying from Incheon to Ontario. 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 Incheon Intl to Ontario? 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.
7.4
United AirlinesOverall score based on 10643 reviews
7.1Entertainment
6.7Food
7.7Boarding
8.1Crew
7.2Comfort
Airline reviews

Connecting flights were poor,especially in Naples.our Lufthansa air bus was a joke.way too small for that long of a flight.no room at all.couldn’t even get out of the seats to move around or go to the bathrooms.we thought we were getting an actual air bus,double decker.i will never fly that long in a plane like that again.kind of misleading to call it an air bus.we actually had more room on our buses that we used.

2.0 MediocreAnonymous, Jun 2024MUC - SAN
Read more about United Airlines reviews

Connecting flights were poor,especially in Naples.our Lufthansa air bus was a joke.way too small for that long of a flight.no room at all.couldn’t even get out of the seats to move around or go to the bathrooms.we thought we were getting an actual air bus,double decker.i will never fly that long in a plane like that again.kind of misleading to call it an air bus.we actually had more room on our buses that we used.

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

They have trouble to keep their flights in schedule. Seems not having enough staff to provide appropriate customer service. Lacking real agents on site to help customers. Have to use QR code/web site/call to be able to talk to real person can help you - and you may have to punch though series of options first, then hold until someone assist you. Similar for baggage claim, no real agent onsite helping if you missing luggage, not like other airline next to UA desk having staff there even after midnight to assist customers.

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.

Flighty delayed on boarding - then group 1 had to check their carry on bags but groups 3 and beyond could carry bags on - very inconvenient for weekend business trip with no checked baggage. Then delayed on the runway - before take off. No communication from pilot on why or how long. Wifi/Entertainment didn't work for 4+ flight. Upon arrival, attendants announced wrong carousel for baggage claim - everyone was waiting at the wrong place for their checked bags. This was a mess united!

Everything was great except for one thing. I was sitting in seat 1L with plenty of windows. Because we couldn’t sit next to each other, my husband was in 2L with only one window that he had to almost turnhis neck around to look out. Therefore, the window position with 1/2 of the “window” seats in business class is not optimal

I was not expecting much as i was not in a premium cabin. I was pleasantly surprised that the seat in economy plus was spacious and food was ample. Party of 5 with 2 parents and 3 kids.

Outstanding in all respects. Early boarding left early arrived early. We were in business class, so was perfectly fine.

Dinner was okay but the breakfast was not eatable on the flight San Francisco to Zurich.

I really do not like the basic in basic economy.

Book cheap flights from Incheon to Ontario

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Incheon to Ontario found on KAYAK in the last 72 hours.
9/10Tue
1 stopUnited Airlines
23h 55mICN-ONT
$324
9/10Tue
2 stopsUnited Airlines
20h 12mICN-ONT
$328
11/13Wed
1 stopHawaiian Airlines
17h 30mICN-ONT
$489
6/16Sun
3 stops
52h 43mICN-ONT
$577
10/17Thu
2 stopsAmerican Airlines
20h 19mICN-ONT
$602
10/13Sun
1 stopChina Airlines
21h 30mICN-ONT
$606
6/19Wed
2 stopsAmerican Airlines
45h 34mICN-ONT
$607
10/20Sun
2 stops
25h 15mICN-ONT
$609
11/10Sun
1 stopChina Airlines
21h 10mICN-ONT
$610
6/17Mon
1 stopHawaiian Airlines
16h 20mICN-ONT
$681

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Last minute flights from Incheon Intl to Ontario

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 Incheon to Ontario that are departing in the next 10 days.
6/13Thu
multi-stopUnited Airlines
26h 57mICN-ONT
6/17Mon
multi-stopUnited Airlines
33h 05mONT-ICN
$1,340
6/15Sat
multi-stopUnited Airlines
26h 57mICN-ONT
6/19Wed
multi-stopUnited Airlines
30h 00mONT-ICN
$1,394
6/12Wed
multi-stopUnited Airlines
25h 18mICN-ONT
6/19Wed
multi-stopUnited Airlines
16h 40mONT-ICN
$1,476
6/13Thu
multi-stopChina Airlines
37h 15mICN-ONT
6/16Sun
multi-stopChina Airlines
27h 35mONT-ICN
$1,486
6/12Wed
multi-stopChina Airlines
21h 30mICN-ONT
6/18Tue
multi-stopChina Airlines
27h 35mONT-ICN
$1,539
6/15Sat
multi-stopUnited Airlines
25h 08mICN-ONT
6/19Wed
multi-stopUnited Airlines
30h 00mONT-ICN
$1,548
6/13Thu
multi-stop
25h 35mICN-ONT
6/16Sun
multi-stop
29h 00mONT-ICN
$1,676
6/15Sat
multi-stop
26h 20mICN-ONT
6/18Tue
multi-stop
25h 40mONT-ICN
$1,791
6/12Wed
multi-stopKorean Air
14h 30mICN-ONT
6/19Wed
multi-stopKorean Air
17h 40mONT-ICN
$2,332
6/11Tue
multi-stopQatar Airways
33h 54mICN-ONT
6/19Wed
multi-stopQatar Airways
29h 06mONT-ICN
$2,767

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Seoul Incheon Airport - Ontario Flights

Departure:

Incheon (ICN)South Korea

Destination:

Ontario (ONT)United States

Return flight deals:

Ontario - Incheon

Cabin classes: