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SFO - YXU

$187 Find cheap flights from San Francisco to London

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from San Francisco to London departing on 7/7. 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 London

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from San Francisco to London, 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 San Francisco to London, 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 San Francisco to London (SFO-YXU)

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from San Francisco to London 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
2:25 pm - 5:18 amSFO-YXU
11h 53m2 stops
6:15 am - 12:00 pmYXU-SFO
8h 45m1 stop
$424WestJet
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Sat, Aug 17 - Sat, Aug 24
10:39 pm - 9:15 amSFO-YXU
7h 36m1 stop
6:20 pm - 9:11 amYXU-SFO
17h 51m1 stop
$428Air Canada
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Wed, Aug 14 - Sun, Aug 18
3:20 pm - 5:18 amSFO-YXU
10h 58m2 stops
8:00 pm - 12:00 pmYXU-SFO
19h 00m1 stop
$444WestJet
Find Deal
Thu, Aug 15 - Sun, Aug 18
7:30 am - 5:18 amSFO-YXU
18h 48m1 stop
6:15 am - 12:00 pmYXU-SFO
8h 45m1 stop
$456WestJet
Find Deal
Sat, Aug 17 - Sat, Aug 24
2:25 pm - 5:18 amSFO-YXU
11h 53m2 stops
8:00 pm - 12:00 pmYXU-SFO
19h 00m1 stop
$463WestJet
Find Deal
Wed, Aug 14 - Sun, Aug 18
3:20 pm - 5:18 amSFO-YXU
10h 58m2 stops
6:15 am - 1:32 pmYXU-SFO
34h 17m2 stops
$481WestJet
Find Deal
Thu, Aug 15 - Sun, Aug 18
2:25 pm - 5:18 amSFO-YXU
11h 53m2 stops
6:15 am - 1:32 pmYXU-SFO
34h 17m2 stops
$490WestJet
Find Deal
Wed, Aug 14 - Sun, Aug 18
7:30 am - 7:11 pmSFO-YXU
8h 41m1 stop
8:00 pm - 12:01 pmYXU-SFO
19h 01m1 stop
$499WestJet
Find Deal
Thu, Oct 3 - Sun, Oct 6
10:35 pm - 9:15 amSFO-YXU
7h 40m1 stop
6:20 pm - 11:21 pmYXU-SFO
8h 01m1 stop
$595Air Canada
Find Deal
Sun, Jul 7 - Fri, Jul 12
12:12 am - 2:45 pmSFO-YXU
11h 33m2 stops
3:20 pm - 9:01 pmYXU-SFO
8h 41m1 stop
$3,910United Airlines
Find Deal
Sat, Jul 6 - Fri, Jul 12

Flights from San Francisco to London - Travel Insights & Trends

Get data-powered insights and trends into flights from San Francisco to London 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 San Francisco to London?

The average price of all flights from San Francisco to London clicked on KAYAK for each day over the last 12 months.
For San Francisco to London, Monday is the cheapest day to fly on average and Tuesday is the most expensive. Flying from London back to San Francisco, the best deals are generally found on Saturday, with Friday being the most expensive.

Which airlines provide the cheapest flights from San Francisco to London?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
The best deals for a one-way ticket found by KAYAK users over the last 3 days were on Air Canada ($187) and WestJet ($190). The cheapest round-trip tickets were found on WestJet ($424) and Air Canada ($428).

Good to know

Low season

February

High season

June

Cheapest flight

$187
Best time to beat the crowds with an average 66% drop in price.
Most popular time to fly with an average 43% increase in price.
Flight from San Francisco to London

When to book flights from San Francisco to London

Are your dates flexible? Find out the best times to travel from San Francisco to London 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 San Francisco to London

  • What is the cheapest flight from San Francisco to London?

    In the last 3 days, the lowest price for a flight from San Francisco to London was $187 for a one-way ticket and $424 for a round-trip.

  • Do I need a passport to fly between San Francisco and London?

    Yes, you'll most likely have to show a valid passport before boarding the plane in San Francisco and on arrival in London.

  • Which airports will I be using when flying from San Francisco to London?

    On your way to London, you’ll fly out from San Francisco. You’ll be landing at London.

  • Which aircraft models fly most regularly from San Francisco to London?

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

  • Which airline alliances offer flights from San Francisco to London?

    Star Alliance is the only airline alliance operating flights between San Francisco and London.

  • How does KAYAK find such low prices on flights from San Francisco to London?

    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 San Francisco to London.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to London from San Francisco 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 San Francisco to London?

    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 London with an airline and back to San Francisco with another airline. Booking your flights between San Francisco and YXU 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 San Francisco to London?

    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 London from San Francisco 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 San Francisco to London

 
See real verified KAYAK customer reviews for airlines flying from San Francisco to London. 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 San Francisco to London? 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.
7.0
Air CanadaOverall score based on 7070 reviews
7.2Boarding
6.8Entertainment
7.8Crew
7.0Comfort
6.2Food
Airline reviews

There was a mistake with the first name we only discovered at security. Air canada was unable to correct it to match then passport since it was booked through an agency. The agency could not correct it either since they need at least two hours to do that. We could not fly and lost a bunch of money. Learned my lesson about kayak.

2.0 MediocreAnonymous, Jun 2024STL - YYZ
Read more about Air Canada reviews

There was a mistake with the first name we only discovered at security. Air canada was unable to correct it to match then passport since it was booked through an agency. The agency could not correct it either since they need at least two hours to do that. We could not fly and lost a bunch of money. Learned my lesson about kayak.

My flight got canceled. Then AC rebooked me to a next day flight. No compensation no apology. It almost messed up my entire trip and schedule. However, all the unexpepected seems routine and ordinary to AC, so customers need to get used to.

I love air Canada. The staff is so helpful and friendly and attentive. I paid for extra room but chose a ser near a person who took up a lot of space which gave me less space than regular economy, I was sad I did that!

Did not appreciate “hidden fees” to check a bag for international flight and purchase a seat to be next to my spouse. Won’t choose this airline again.

No meal. Flight crew was wonderful, happily finding me storage for my guitar. THANK YOU!!!

The original flight from Boston to Toronto was canceled because of a mechanical failure. I was then scheduled on a flight to go from Boston to Montreal and then Montreal to Toronto. The flight was extremely full and I had to check my carry-on bag. When I actually got on the plane there appeared to be room for my bag. I understand the mechanical failures happen. But it was frustrating that they pestered me to check my bag when I don't believe it was necessary. Additionally, not just with Air Canada, modern airline seats are incredibly uncomfortable. There is considerable research that shows that the shape of them is poor for back health.

Unable to initiate refund/reschedule the ticket #worst experience #lost 900$

Flight was delayed for almost 3 hours. Communication of gate change was poor. Email and screen said one gate and it was a different gate from that. Gate changed first to 64 B and then to 64 C. Originally it was 68B. 64C was not communicated properly!

Flight was on time early arrival better entertainment good staff.everything was excellent

Very good other than we have to wait for one crew and we’re delayed and the pilot and his co- pilot has to make a difference to be right on time arrival. Disappointed about no food service also.

Book cheap flights from San Francisco to London

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from San Francisco to London found on KAYAK in the last 72 hours.
7/7Sun
1 stopAir Canada
7h 40mSFO-YXU
$187
8/14Wed
2 stopsWestJet
11h 53mSFO-YXU
$190
7/7Sun
2 stops
16h 15mSFO-YXU
$241
7/6Sat
2 stops
25h 31mSFO-YXU
$247
7/7Sun
3 stopsWestJet
35h 53mSFO-YXU
$358
8/14Wed
3 stops
37h 08mSFO-YXU
$431
8/13Tue
2 stops
11h 33mSFO-YXU
$566

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San Francisco - London Flights

Departure:

San Francisco (SFO)United States

Destination:

London (YXU)Canada

Return flight deals:

London - San Francisco

Cabin classes:

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