£196 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 26/9. 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

Thu, 19 Nov - Mon, 30 Nov
Alaska Airlines Logo
07:00 - 12:20
OAK
-
LHR
21h 20m
1 stop
Alaska Airlines Logo
14:45 - 15:44
LHR
-
OAK
32h 59m
1 stop
£565Alaska Airlines
Sat, 12 Sep - Sun, 27 Sep
TAP AIR PORTUGAL Logo
19:35 - 18:50
SFO
-
LHR
15h 15m
1 stop
TAP AIR PORTUGAL Logo
19:50 - 14:05
LHR
-
SFO
26h 15m
1 stop
£599TAP AIR PORTUGAL
Wed, 16 Sep - Fri, 9 Oct
Scandinavian Airlines Logo
16:45 - 16:00
SFO
-
LHR
15h 15m
1 stop
Scandinavian Airlines Logo
06:40 - 23:56
LHR
-
SFO
25h 16m
2 stops
£600Scandinavian Airlines
Mon, 12 Oct - Fri, 23 Oct
Scandinavian Airlines Logo
16:45 - 18:30
SFO
-
LHR
17h 45m
1 stop
Scandinavian Airlines Logo
06:40 - 14:40
LHR
-
SFO
16h 00m
1 stop
£601Scandinavian Airlines
Wed, 2 Sep - Mon, 14 Sep
Scandinavian Airlines Logo
16:45 - 16:00
SFO
-
LHR
15h 15m
1 stop
Scandinavian Airlines Logo
19:50 - 14:40
LHR
-
SFO
26h 50m
2 stops
£602Scandinavian Airlines
Thu, 1 Oct - Tue, 24 Nov
Virgin Atlantic Logo
06:30 - 06:25
SJC
-
LHR
15h 55m
1 stop
Virgin Atlantic Logo
06:30 - 18:58
LHR
-
SJC
20h 28m
2 stops
£602Virgin Atlantic
Wed, 30 Sep - Tue, 6 Oct
Air Canada Logo
06:15 - 06:30
SFO
-
LHR
16h 15m
2 stops
Air Canada Logo
06:50 - 20:59
LHR
-
SFO
22h 09m
2 stops
£605Air Canada
Sun, 20 Sep - Wed, 30 Sep
Virgin Atlantic Logo
17:45 - 15:35
SJC
-
LHR
13h 50m
1 stop
Virgin Atlantic Logo
06:30 - 20:10
LHR
-
SJC
21h 40m
2 stops
£619Virgin Atlantic
Wed, 12 Aug - Thu, 27 Aug
KLM Logo
06:00 - 10:00
OAK
-
LHR
20h 00m
1 stop
KLM Logo
20:55 - 16:14
LHR
-
OAK
27h 19m
2 stops
£651KLM
Wed, 14 Oct - Tue, 20 Oct
KLM Logo
05:55 - 10:00
OAK
-
LHR
20h 05m
1 stop
KLM Logo
06:30 - 16:23
LHR
-
OAK
17h 53m
2 stops
£652KLM
Useful Info

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

Low seasonJanuary
Cheapest flight£196
Best time to beat the crowds (16% less expensive on average)
Most popular time to fly (23% more expensive on average)
Flight from San Jose to London Heathrow Airport

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 1531 reviews
7.3Food
7.7Comfort
8.4Crew
7.2Entertainment
7.8Boarding
Airline reviews

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

10.0 ExcellentDiane, Apr 2026
AMS - HUY
Read more KLM reviews

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

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!!

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.

Over 1 Hr delay. No APU so no AC on ground. Plane was hot during boarding and then they closed the doors over 20 minutes before engine start so interior of plane was steamy hot and stuffy. Could have been helped by opening doors until ready to depart.

KLM remains a quality flag carrier airline which maintains its standards whilst all their competitors are lowering theirs.

Cabin crew professional, polite and friendly, boarding was seemless, but come on KLM surely you can do better than a pack of cheesy biscuits as an inflight snack

Overall very positive. Boarding was quick and organized. Cabin was clean and seats were reasonably comfortable. Cabin crew was excellent and the meals provided were also of good quality

The IFE was quite old, but it worked fine and the content was good. The cabin crew were excellent and the food was as also very good

The plane. Airbus A330-200. Comfortable for a 7-hour flight. Seats seemed to have more legroom. I was in row 17. Flight was operated by Delta but was better than expected.

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

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

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.

Good overall. Cannot fault the airlines. I have had better entertainment systems before ie ice in Emirates but it was not too bad. Food was decent and staff were friendly.

Miami airport needs more thorough signage. It was a long walk from my transport point to the check in desk,

Flight took off an hour late. Had to stay on the tarmac for half an hour after landing. Both annoying.

The crew was very good. However, the equipment was a bit dated. Some of the electronics were not working. To top it, three bags didn’t arrive with me. Two of them were delivered a day later. I’m still waiting for the third bag, I was so looking forward to this virgin Atlantic flight, but, I am disappointed.

My only complaint is that the pocket in front of me was ripped and my things, like iPad and airline magazines, kept slipping to the floor.

Flight delayed yet again. Crew apathetic and unhelpful re affect on connecting flight.

Cabin crew on our flight showed lack of any customer service gruff and acting annoyed if you asked anything and I mean anything Example a man on the seat over dropped his beer on my husbands blanket We asked if we could switch out blankets cabin crew Said. No we don’t have any extras OK well can you take the wet one Cabin crew looked disgusted and annoyed Took it no OK or yes just a growl

I was very disappointed with my experience at the United Airlines baggage check. The representative was rude and unhelpful. I was required to remove approximately 1.5 pounds from my two checked bags, even though it was a very small amount over the limit. The interaction was unnecessarily unpleasant, and I expected much better customer service. I hope United will review this incident and provide additional customer service training to its staff.

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)

Some flight attendants were great others were cranky. Seats were very tight and sitting on an aisle was very hard as the carts and people walking constantly bumped shoulder and arm.

Although the flight was delayed the crew and the flight itself were very good. Couldn't fault anything and after the disappointment of being abandoned in the US by BA it was a welcome relief to travel with United

Liked fold flat bed. Didn’t like having no window. Didn’t like poor choice of food and being served dinner very late, hours after take off of a 7:40pm flight. Servers not friendly. Food horrible in business class.

The flight was heavily booked so boarding was a lengthy process. The FA’s were rather abrupt during this process but became more gracious as the flight went on. Breakfast (puffed pastry and chewy sausage) was pretty horrible but there was fruit and yogurt which they didn’t mess up. Overall it was fine.

Waited for our plane from HNL so we didn't miss connection. AMAZING Service for that, then really clean plane. Nice airline attendants.

The trip was very smooth. Flight crew were very friendly and efficient.

Old plane with broken interiors, unclean restrooms and non attentive crew.

The infotainment system is liking compared to Airlines like Emirates Etihad Singapore Qantas

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.

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.

It was my first experience in business class. It was everything I expected and more. Service was impeccable, food was delicious and I felt rested once I arrived to London

Missed our flight to London and we were put on coach seats to Munich.

The process overall was pretty seamless, and the crew were very friendly (especially Michael). Considering we booked expecting Lufthansa and the flight was operated by United, it was still a very good service and journey overall. The in-flight entertainment was great, with lots of quality options. One slight negative was that I had selected a vegetarian meal prior to flying, but received a vegan one. I think there should be more dietary options as it meant I missed out on some food that I would have preferred (and it seemed like the standard meals and snacks had a vegetarian option anyway). There was also a group of people who were moving around a lot and being generally disruptive at the quietest part of the flight, when the lights were off and most people were sleeping. I would have appreciated staff stepping in to encourage them to be mindful of others). Towards the end of the flight (which was very early in the morning in both time zones), the lights suddenly came on and breakfast was served. In my opinion, this was too early, and everyone was rudely awoken from sleep. After breakfast was cleared away, the lights went off again for about 45 minutes, allowing people to sleep some more. Then the lights came on again for landing. It seems like if they had served breakfast later, the lights on-lights off-lights on shenanigans could have been avoided, and people could have slept longer (and staff could have rested longer too).

Overall good experience, just the delay of 2.5 hrs was a bummer.

I was disgusted at the fact when it came to checking into the flight it appeared there was no space for me on the plane due to the fact United airlines/Lufthansa had overbooked the flight. This was ridiculous considering I had paid to be on the flight and got to the airport gate early to make sure I was on time. Luckily my partner had asked the gentleman on the desk if someone didn’t turn up could I have their seat as we did not want to have to wait til the next day to fly home. This then encouraged them to go and actually check the plane, where they found there was a seat available. Thank god my partner had suggested this otherwise we would have had to fly back the following day and have to stop over in Washington. As we got onto the plane and finally found our seats (which were not together either), other passengers believed it was because we were late for the flight which then made it even more of an uncomfortable flight. This whole experience made me so anxious and was very upsetting which then effected the flight home to London. It was unacceptable! It should not have happened in the first place and I will not be flying with United airlines again, and will be encouraging others not to as well.

I should've been inform it wasn't Lufthansa but United Airlines.

They canceled the flight we booked several weeks ago and Lufthansa rebooked us on a very bad connection through Frankfort but never told us…the helpful United people at the airport figured out what had happened and then rebooked us on a direct United flight, like our original booking, only overnight instead of daytime. Why did Lufthansa not mention that they had rebooked us, and why did they add a stopover needlessly?

Everything went very smoothly. Only issue, my movie screen was difficult to use. Unresponsive to touch commands. The crew was EXCELLENT 👍 Very helpful and accommodating. Upon arrival in London, the process was seemless. Highly recommend!

I was booked in Premium Economy and never given a chance to choose to purchase my own seat. Ended up with a middle seat, which was very difficult for me. The airline then left my bag in London so when I arrived in Instanbul it was not there. They delivered it to me the next day but many valuable items had been stolen. I've been flying with BA for years and this was the first time I had such a bizarre and bad experience with them.

Canceled flight late London to Florence. Help at airport very poor. Treated poorly. Had to sleep in the airport. Lost bags- still do not have them. Horrible. I should be reimbursed!

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

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

Flying with BA is always a good experience—even in economy class. It is better if in business and first class. Timely, breeze through security and timely connections

The issue was not with BA it was with the link yoiu sent fopr booking the flight

Loved the boarding option from Business class lounge, experience on flight was excellent, plenty of good food choices

Awful it always is unfortunately is the only way to fly direct to london

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