£318 Find Cheap Flights from San Francisco Bay Area to London Heathrow Airport

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to Heathrow departing on 15/9. 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
1 adult, Economy, 0 bags

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Cheap Flights from San Francisco Bay Area to Heathrow

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from San Francisco Bay Area to Heathrow 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 for you by selecting your travel dates on KAYAK.

Recent return flight deals from San Francisco Bay Area to Heathrow

Tue, 6 Oct - Tue, 13 Oct
Virgin Atlantic Logo
16:30 - 15:00
SJC
-
LHR
14h 30m
1 stop
Virgin Atlantic Logo
06:30 - 17:15
LHR
-
SJC
18h 45m
2 stops
£555Virgin Atlantic
Thu, 1 Oct - Tue, 24 Nov
Virgin Atlantic Logo
17:05 - 14:55
SJC
-
LHR
13h 50m
1 stop
Virgin Atlantic Logo
06:30 - 20:58
LHR
-
SJC
22h 28m
2 stops
£575Virgin Atlantic
Thu, 1 Oct - Tue, 24 Nov
Virgin Atlantic Logo
15:45 - 17:30
SJC
-
LHR
17h 45m
2 stops
Virgin Atlantic Logo
11:30 - 21:47
LHR
-
SJC
18h 17m
2 stops
£579Virgin Atlantic
Thu, 1 Oct - Tue, 24 Nov
Virgin Atlantic Logo
13:15 - 13:05
SJC
-
LHR
15h 50m
1 stop
Virgin Atlantic Logo
10:45 - 16:16
LHR
-
SJC
13h 31m
1 stop
£593Virgin Atlantic
Thu, 17 Sep - Sat, 26 Sep
Scandinavian Airlines Logo
16:45 - 09:35
SFO
-
LHR
32h 50m
2 stops
Scandinavian Airlines Logo
17:00 - 14:40
LHR
-
SFO
29h 40m
1 stop
£594Scandinavian Airlines
Mon, 14 Sep - Fri, 2 Oct
Scandinavian Airlines Logo
16:45 - 16:00
SFO
-
LHR
15h 15m
1 stop
Scandinavian Airlines Logo
06:40 - 14:40
LHR
-
SFO
16h 00m
1 stop
£594Scandinavian Airlines
Tue, 1 Sep - Tue, 24 Nov
TAP AIR PORTUGAL Logo
19:20 - 10:20
SFO
-
LHR
31h 00m
1 stop
TAP AIR PORTUGAL Logo
13:40 - 14:45
LHR
-
SFO
33h 05m
1 stop
£599TAP AIR PORTUGAL
Tue, 18 Aug - Fri, 28 Aug
Lufthansa Logo
08:45 - 12:50
SJC
-
LHR
20h 05m
2 stops
Lufthansa Logo
06:55 - 20:57
LHR
-
SJC
22h 02m
2 stops
£633Lufthansa
Wed, 19 Aug - Wed, 26 Aug
KLM Logo
12:33 - 13:05
OAK
-
LHR
16h 32m
2 stops
KLM Logo
11:45 - 23:51
LHR
-
OAK
20h 06m
2 stops
£641KLM
Tue, 6 Oct - Tue, 13 Oct
KLM Logo
12:45 - 13:15
SJC
-
LHR
16h 30m
1 stop
KLM Logo
18:15 - 15:47
LHR
-
SJC
29h 32m
1 stop
£652KLM
Useful Info

Good to know - Cheap tickets from San Francisco Bay Area to London Heathrow Airport

Low seasonJanuary
Best time to beat the crowds (9% less expensive on average)
Most popular time to fly (4% more expensive on average)

Flights from San Francisco Bay Area to Heathrow: the best tips from KAYAK users

Insights shared by verified travellers who flew the route from San Francisco Bay Area to Heathrow 
Verified travelerFlew with British Airways
SFO
-
LHR
Dec 2025
If not getting off in London make sure you have enough time to get to your connecting gates
Verified travelerFlew with Iberia
SFO
-
LHR
Jan 2026
Buy your flight directly from the airline because the cancellation process is purgatory
GeraldFlew with Virgin Atlantic
SFO
-
LHR
Jun 2025
Virgin Atlantic uses terminal 3. Much faster clearing customs than terminal 5
Verified travelerFlew with American Airlines
SFO
-
LHR
Jun 2025
Large number of passengers on the flight so arrive early to the airport and to the boarding gate
PallaviFlew with British Airways
SFO
-
LHR
Apr 2025
Eat at the lounge first so you are not stuck eating overcooked cheese ravioli
TapanFlew with British Airways
SFO
-
LHR
Oct 2024
Great baggage policy in BA.. The worst part was experience at London Heathrow airport. Security was slow, too many people. Almost lost connecting flight even with 2 hours layover.

FAQs for booking San Francisco Bay Area to London Heathrow Airport flights

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

    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 Bay Area to London Heathrow Airport.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to London Heathrow Airport from San Francisco Bay Area is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights from San Francisco Bay Area to London Heathrow Airport?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to London Heathrow Airport with an airline and back to San Francisco Bay Area with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from San Francisco Bay Area to London Heathrow Airport?

    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 Heathrow Airport from San Francisco Bay Area up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 5 airlines flying from San Francisco Bay Area to Heathrow

 
Need help choosing which airline to fly with from San Francisco Bay Area to Heathrow? 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.
7.8
KLMOverall score based on 1513 reviews
7.3Food
8.4Crew
7.2Entertainment
7.8Boarding
7.7Comfort
Airline reviews

Outstanding even though the 330 was one of the oldest in the fleet. The difference was the attentiveness and responsiveness of a really experienced flight attendant. For airline food great variety of interesting choices and good tastes supported by a good wine selection.

10.0 ExcellentBob, May 2026
AMS - YYZ
Read more KLM reviews

Outstanding even though the 330 was one of the oldest in the fleet. The difference was the attentiveness and responsiveness of a really experienced flight attendant. For airline food great variety of interesting choices and good tastes supported by a good wine selection.

Brand new plane lots of room the snack was very flavourful and enjoyable

As per usual when you Hit the UK it's a slow process through customs Not as efficient at Thailand for sure

It was really nice experience by flying this klm flight.I personally recommend everyone to please try this klm flight

The crew were unprofessional with a racist element. I was physically abused as well from one of the crew members

Empty seats next to me - wish it had been for a longer flight!!

Flight was on time, staff are friendly and helpful onboard.

Terrible last row seats many seats available but no offer to move to better seat

Delay on my previous leg, had to run to catch my flight. But that happens. Overall ok.

They forgot to serve food and the crew was very unfriendly. Never experienced such a bad KLM flight. Usually fly from Toronto. New York was different.

No screens or meal options. Freezing cold. Dirty seats. Left late.

Cree was organized and pleasant. Plane had good seating but as it’s a shuttle toilets hadn’t been thoroughly cleaned (eg. bins too full)

I liked that my son and I were reseated next to each other (we had different bookings). I liked that it was a directg flight and mostly on time. I liked that you provided pillows and blankets. Flight attendants were generally courteous. The messaging through wifi did not work well. The food was not good. Seats are very narrow and I felt slightly claustraphobic in the window seat.

Some crew were unfriendly or in some cases just straight up rude.

Booked through Kayak Business, had a seat in middle and towards back due to booking rate, not comfortable.

Outstanding service, efficient & friendly crew, flight was safe, comfortable & on time

United Airline crews were very friendly and very attentive. 12 hours flight was gone like in a shorter one.

Food was surprisingly delicious. Space in the seat is horrible when the seating front is reclined. Movie offerings were terrible. Crew was friendly and helpful.

Flight itself excellent, but delayed so missed connection & got to destination 2 hrs later

Due to cancellation of connecting flight (Lufthansa) I didn’t fly with United

Seating and zone. The minor I went with didn’t even seat close to me

My seat 3G did not go down fully and the buttons were not working properly

Food has been disappointing in both legs of flight to india

Great staff great experience, made a 2 hour delay very bearable

Great staff, great experience, made a 2 hour delay very bearable

Food was the worst I’ve had on a VA flight. Normally it’s a lot better

I was my pleasure to fly virgin on my birthday for my first solo trip ever 🫶🏼

These are one of the older seat arrangements facing away from the windows! Not particularly convenient sets. No storage spaces. NO COAT HANGING HOOKS. Inconvenient business class seat compared to any other airlines of similar class. Staff are excellent! Extremely professional, friendly. Food is good too.

Overall, flight was excellent but check in was very slow for Premium Economy. Economy queue was shorter but we weren't allowed to use it.

The staff was not very polite but the flight was very very nice and comfortable and the entertainment was great

Definitely get premium economy on a flight this long if you can. Your legs and while body will thank you.

Boarding was disorganized. The door to one to the toilets wouldn’t lock. The plane was shockingly cramped, and clearly used for domestic flights due to the menus for items to sell domestic travelers. United should be ashamed of its small seats, tiny unclean toilets, and money grubbing stance toward services, compared to Lufthansa, Emirates, and most international carriers United is awful.

Terrible. Lost our luggage for 4 days. Did not advise passengers there was a strike in Barcelona Airport and had zero personnel on hand at airport to advise passengers on where to go to file claims. We had to fend for ourselves. No assistance at all other than an online claims submission process that we had to find out about on our own.

Flights were delayed and due to a checked hand luggage bag by an overzealous gate agent in Berlin I missed my ground connection costing me another £80. Food was cold and bland, I honestly expect better from a national carrier operating out of one of their major hubs.

Lufthansa cancelled our flight from Los Angeles to Naples Italy on March 10 for scheduled flight on March 12 Very stressful experience trying to arrange alternatives. Will never fly again with Lufthansa

Service and food were excellent. Incredibly friendly and competent staff. Flight was delayed over and hour and I had to run between terminals to get my connecting flight.

Late flight Delays Poor service Poor staff Worst airline ever

Lufthansa still has a good level of quality compared to US airlines, especially with respect to (1) food quality - actually tasty, (2) good French red wine - free, (3) good movie selection. Also my ticket price includes 1 free check-in luggage, while some other budget airlines sneak in an extra $150 for a checkin.

A bit more space? Not practical, I know. I felt squished in but part of that could have been the man sitting next to me.

The food could be better, more snacks. And have some plugs to chargue the phone.

Flight was good but temp in the cabin was cold.

I like American Airlines and their safety record. They provide quality service and a feel safe enough to prefer American Airlines over other carriers even if I have to pay a little more.

Cancelled flight and re booked seats were a downgrade. British Airways said the upgrade was t available but when I checked it was but then they wouldn’t make it right

Boarding was orderly, pilot and flight attendants were nice, entertainment options were good, and low sodium meals were quite tasty.

The whole experience was excellent, O can say out from Miami the best airline to travel with for any European destination. Since the ground staff to the inflight crew attention was great, service on board 10 of 10. Finally the 380 is very confortable and nice to travel.

All crew except 1 were excellent. When I asked assistance with business class seat conversion to a bed (not being familiar as never used before but have numerous times with other airlines) crew member helped very reluctantly. I should have told her that business class seat conversion is totally different in each airline such as Delta, New Zealand Air and United. Sorry it was my 1st time with America Airlines. Now I know, I won't bother asking assistance in future.

The seats in Premier Economy were very comfortable. The food was better than average. The way British Airways handled our seating was atrocious.

Flight delayed, connection was not at gate listed and so missed, staff were rude at Heathrow, phone tree stupid and difficult, took me 21 actual hours to reach my destination. Almost lost my hotel reservation after walking in a strange city alone after midnight because they would not put me up in a hotel at sfo or heathrow. I will never fly BA again and will tell all people and Instagram followers never to fly BA.

Wish the food and overall service was better. They treat Business class passengers same as economy

They had us seating down for one hour just waiting on the plane

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