£147 Find Cheap Flights from San Francisco to the United Kingdom

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 the United Kingdom departing on 19/10. 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
1 adult, Economy

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Cheap Flights from San Francisco to the United Kingdom

Cheapest return prices found by our users on KAYAK in the last 72 hours
London
London2 stops£260
Manchester
Manchester1 stop£403
Edinburgh
Edinburgh1 stop£448
Birmingham
Birmingham1 stop£466
Belfast
Belfast2 stops£504
Bristol
Bristol1 stop£499
Aberdeen
Aberdeen2 stops£474
Liverpool
Liverpool1 stop£653
Leeds
Leeds1 stop£525
Newquay
Newquay1 stop£635
Inverness
Inverness2 stops£386
Cardiff
Cardiff1 stop£623
Exeter
Exeter1 stop£836
London
London2 stops£260
Manchester
Manchester1 stop£403
Edinburgh
Edinburgh1 stop£448
Birmingham
Birmingham1 stop£466
Belfast
Belfast2 stops£504
Bristol
Bristol1 stop£499
Aberdeen
Aberdeen2 stops£474
Liverpool
Liverpool1 stop£653
Leeds
Leeds1 stop£525
Newquay
Newquay1 stop£635
Inverness
Inverness2 stops£386
Cardiff
Cardiff1 stop£623
Exeter
Exeter1 stop£836

Book Cheap San Francisco to the United Kingdom Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from San Francisco to the United Kingdom 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 to the United Kingdom

Sun, 23 Nov - Wed, 3 Dec
SWISS Logo
19:25 - 21:25SFO-LHR
18h 00m2 stops
SWISS Logo
17:25 - 16:30LHR-SFO
31h 05m2 stops
£260SWISS
Find Deal
Tue, 16 Sep - Tue, 23 Sep
TAP AIR PORTUGAL Logo
18:45 - 09:45SFO-LGW
31h 00m2 stops
TAP AIR PORTUGAL Logo
16:25 - 14:35LGW-SFO
30h 10m1 stop
£314TAP AIR PORTUGAL
Find Deal
Sun, 10 Aug - Tue, 26 Aug
Virgin Atlantic Logo
12:16 - 13:10SFO-LHR
16h 54m1 stop
Virgin Atlantic Logo
06:15 - 12:50LHR-SFO
14h 35m1 stop
£348Virgin Atlantic
Find Deal
Sun, 10 Aug - Tue, 26 Aug
Virgin Atlantic Logo
07:00 - 06:45SFO-LHR
15h 45m1 stop
Virgin Atlantic Logo
16:25 - 19:30LHR-SFO
11h 05mdirect
£353Virgin Atlantic
Find Deal
Mon, 11 Aug - Tue, 26 Aug
United Airlines Logo
16:00 - 10:25SFO-LHR
10h 25mdirect
United Airlines Logo
14:05 - 21:40LHR-SFO
15h 35m1 stop
£363United Airlines
Find Deal
Sun, 10 Aug - Tue, 26 Aug
United Airlines Logo
13:00 - 07:25SFO-LHR
10h 25mdirect
United Airlines Logo
10:35 - 13:35LHR-SFO
11h 00mdirect
£368United Airlines
Find Deal
Tue, 21 Oct - Fri, 31 Oct
British Airways Logo
19:20 - 13:45SFO-LHR
10h 25mdirect
British Airways Logo
15:25 - 19:45LHR-SFO
11h 20mdirect
£374British Airways
Find Deal
Tue, 16 Sep - Tue, 30 Sep
British Airways Logo
22:43 - 08:10SFO-LGW
25h 27m1 stop
British Airways Logo
15:05 - 09:24LGW-SFO
26h 19m1 stop
£391British Airways
Find Deal
Thu, 2 Oct - Fri, 17 Oct
Lufthansa Logo
14:40 - 12:15SFO-BHX
13h 35m1 stop
Lufthansa Logo
05:55 - 12:40BHX-SFO
14h 45m1 stop
£484Lufthansa
Find Deal
Sun, 21 Sep - Tue, 28 Oct
Lufthansa Logo
14:40 - 23:00SFO-GLA
24h 20m1 stop
Lufthansa Logo
06:00 - 13:40GLA-SFO
14h 40m1 stop
£487Lufthansa
Find Deal
Booking Insights

KAYAK's insights & trends for San Francisco to the United Kingdom flights

Get data-powered insights and trends into flights from San Francisco to the United Kingdom to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest San Francisco to the United Kingdom flight route?

The cheapest price for flight routes found by users searching on KAYAK in the last 2 weeks for round-trip flights from San Francisco to the United Kingdom.

The cheapest ticket to the United Kingdom from San Francisco found in the last 72 hours was to London, at £355 return. The most popular route is from San Francisco (SFO) to London Heathrow Airport (LHR), and the cheapest round-trip airline ticket found on this route in the last 72 hours was £355.

Can I save money by flying with a stopover from San Francisco to the United Kingdom?

The average return price for all direct flights, flights with one stopover, and flights with two stopovers for the route found by users searching on KAYAK in the last 2 weeks.

Yes, flying with a stopover may cost you more time, but you can also save money on the route, with a 2 stops stopover the cheapest option at £747 on average.

What is the cheapest month to fly from San Francisco to the United Kingdom?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from San Francisco to the United Kingdom, 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 San Francisco to the United Kingdom is October, when tickets cost £481 (return) on average. On the other hand, the most expensive months are June and July, when the average cost of return tickets is £780 and £682 respectively.

What’s the cheapest day of the week to fly from San Francisco to United Kingdom?

The average price of all round-trip flights from San Francisco to the United Kingdom clicked on KAYAK for each day over the last 12 months.

Your flight ticket price will generally be cheaper if you fly to United Kingdom on a Wednesday and more expensive on a Thursday. On your return trip to San Francisco, you should consider flying back on a Thursday, and avoid Sundays for better deals.

How far in advance should I book a flight from San Francisco to the United Kingdom?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from San Francisco to the United Kingdom, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below-average price on a flight from San Francisco to the United Kingdom, you should book around 3 weeks before departure, which saves you about 15% compared to booking last-minute. For the absolute cheapest price, our data suggests you should book 8 weeks before departure.


Good to know - Cheap tickets from San Francisco to the United Kingdom

Low seasonJanuary
Cheapest flight£147
Best time to beat the crowds (0% less expensive on average)
Most popular time to fly (15% more expensive on average)
Flight from San Francisco to London Gatwick Airport

Flights from San Francisco to the United Kingdom: the best tips from KAYAK users

Insights shared by verified travellers who flew the route from San Francisco to the United Kingdom 
GeraldFlew with Virgin AtlanticSFO-LHRJun 2025
Virgin Atlantic uses terminal 3. Much faster clearing customs than terminal 5
Verified travelerFlew with American AirlinesSFO-LHRJun 2025
Large number of passengers on the flight so arrive early to the airport and to the boarding gate
PallaviFlew with British AirwaysSFO-LHRApr 2025
Eat at the lounge first so you are not stuck eating overcooked cheese ravioli
TapanFlew with British AirwaysSFO-LHROct 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 - booking United Kingdom flights

  • How does KAYAK find such low prices on flights from San Francisco to the United Kingdom?

    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 the United Kingdom.

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

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

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly from San Francisco to the United Kingdom with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from San Francisco to the United Kingdom?

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

  • What is the cheapest time of day to fly to the United Kingdom?

    The cheapest time of day to fly to the United Kingdom is generally at night, when retur flights cost £725 on average. Morning departures are around 2% more expensive than evening flights, on average. The most expensive time of day to fly to the United Kingdom is generally in the afternoon, which is peak travel time and where the average cost of a ticket is £1,078.

Top tips for finding a cheap flight from San Francisco to the United Kingdom

  • Looking for a cheap flight from San Francisco to the United Kingdom? 25% of our users found tickets from San Francisco to the United Kingdom for the following prices or less: London £292 one-way - £391 round-trip

Reviews of the top 5 airlines flying from San Francisco to the United Kingdom

 
Need help choosing which airline to fly with from San Francisco to the United Kingdom? 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 8900 reviews
7.1Entertainment
7.3Comfort
7.7Boarding
6.6Food
8.1Crew
Airline reviews

I learned that seating towards the end of plane that a line forms for the restroom and people use your chair as a hand railing, bumping your seat consistently. I was seated in the aisle. I think that next time if I am towards the back row I would want to sit in the middle or window seat.

6.0 GoodLeilani, Jul 2025SFO - KOA
Read more United Airlines reviews

I learned that seating towards the end of plane that a line forms for the restroom and people use your chair as a hand railing, bumping your seat consistently. I was seated in the aisle. I think that next time if I am towards the back row I would want to sit in the middle or window seat.

The best airline I have ever travel , really good customer service, attention and service !!

Everything was great. Only thing that could’ve made it better was buy on board options for hot food, but the snacks were decent. The flight attendants were great. I had no complaints. I was able to make it to my destination safely

Horrific. They missed my connecting flight to San Diego. I didn’t get there until Monday at 9am when I had a mandatory court settlement conference scheduled at 6am since we had parties on the east coast. This caused many issues. All because United apparently forgot to hold the doors open until my flight landed that only had a 10 minute delay. This was the last flight to Southern California. So I couldn’t even rent a car to finish the trip. United cannot be trusted when traveling on specific days and times since weather didn’t have anything to do with the delays.

Very comfortable (upgraded to business class). The audio on my screen didn’t work, but I managed to play the audio through my phone while watching the screen.

Flight was late as pilot crew had to land at different airport in their previous flight. Passengers boarded and had to wait for pilots inside plane. Series of incomplete and unnecessary announcements by an annoying voice, rather than complete, informative announcements.

Breakfast was not loaded at SFO due to catering company change. Seems like a major airline at a major hub would have thought of something else or warned passengers to pick up food before boarding a 3 hour flight.

Boarding seemed to be organized bedlam. For what ever reason, preboarding took longer than 20 minutes. Made the plane 20 minutes late taking off. Luckily we arrived on time. Flight crew seemed very friendly. Only slight turbulence.

They hired a new catering company the same day of my flight. They botched the job by not delivering the right carts and after THREE HOURS waiting, the flight crew timed out (flight was 19 hours long and FAA rules state crew can’t work more than 14 hours long). So they CANCELED OUR FLIGHT!! Worst experience ever. Avoid UAL at all costs.

The personnel were professional and friendly. The Boeing 737 Max 9 is too claustrophobic and was very warm at both airport gates, and still warm in the air.

Great crew - old style upper class seats on the older fleet now feels dated

Premium economy more comfortable than economy, but not by much. Did was awful, do not try the omelette. Flight crew were helpful. Flight was delayed by over an hour. Overall but bad, arrived safely and thank God.

Food was excellent. Service was very good. Staff was very helpful to all passengers.

The crew was excellent as ever on Virgin. The special meal was poor unfortunately. More significantly when we arrived at Manchester Airport there was no air bridge provided and we had to exit the plane down a rickety stair case. This is unacceptable for a transatlantic flight. Whilst I understand that this is the airport’s fault at the end of the day the airline is responsible for our transportation and needs to do something.

Super friendly and helpful staff, from check-in desk to cabin crew.

Following a paid seat upgrade for enhanced comfort, I encountered an unacceptable odor in my assigned area. It took three hours for the crew to relocate me, and the replacement seat was unacceptably close to the lavatory, offering no improvement.

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.

I did not fly by vergin atlantic from bangalore to vasco da gama

Your flight delayed at Heathrow n I almost missed my mother funeral.you idiots. I had to waste 10 hours in different airports. Thank your stars I'm not suing you.

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

Check in needed to be in person, not nice. Also I won’t do connections in Charlotte again because you need to go through security again and short connections become a problem

Iberia lost my bag, said they found it in another country, said they sent it to me, but never did. Went my whole trip without my stuff, but expecting it to show up because that’s what they said would happen. Their communication sucks, their website sucks, and to top it all off, their seats are small and uncomfortable. They’re bad at their jobs and they should feel bad about themselves. Do not even get me started on the flight home. AVOID!

I described my experience in the previous window. I didn't realize that there would be another opportunity for this flight. Please look at my response in the previous window.

Boarding was 2 1/2 late no explanation Captain said he did not know why, but he rested at home for an extra couple of hours. Food was edible, Nothing more.

I liked the comfort of the plane. It was unexpected from past experiences.

BEWARE!!! Iberia changes your seats at random. I paid for a window seat and they changed it to one in the middle aisle resting against the bathroom- can’t lean back + hear every flush. This on a 11 hour flight.. There were families that were broken up with separate seats all over the plane. Lots of upset passengers showing their seat confirmation to the besieged and helpless airline steward. Also, the gluten free meal was tasteless.

Chair is very high. Your feet cannot touch the ground for 8 hours flight. It was a nightmare. Food was bad.

ground crew and check-in was pathetic - insisted on charging me for luggage even though the ticket said it was already included. They also accidentally sent my luggage through without a luggage tag and had to retrieve it. Generally, it was like a bad movie.

Moved the flight an hour later, were not reliable about confirmation, website didn't work, no gate information, boarding was a mad house. Flight itself was fine and short. Organization needs work.

The app on phone and the online check in is not good, it would not give me the option of Spain or Madrid City in the drop down menu and I couldn't move forward with online check in.

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

Everything was really great just The aircraft was too old and sounded it will break during takeoff

Extremely pleased with the crew. Best flight attendants ever! Very friendly, genuinely caring and attentive.

Best flight attendants ever! Very customer and service oriented, courteous, professional and helpful.

Cheapest airlines I have ever been on. I got downgraded and never got on united. I got rerouted through Vancouver onto jetwesf

Very small and uncomfortable seats, Hard to hear entertainment system sound. Horrible food. Staff doesn't care much about the passengers. 2nd time they didn't give me my vegetarian meal. They asked me regular food with meat. The airline and staff was from United airlines.

Checkin took along timen only.few angents available at.checkin desk. Customer support over phone no existence

At baggage claim, I was given the wrong printed ticket. The ticket belonged to another passenger for a different flight — to Zurich instead of Frankfurt (layover). I was even allowed to pass security, and when I asked the Lufthansa employee if I was on the correct flight, and why it was changed. The employee said everything was correct and I should board. When I got on the plane, there was someone in my seat, and the crew on the plane finally realized that I was on the wrong plane. When I got off the plane, nobody was willing to help, and the security refused to provide my original printed ticket. That was until I showed them that I took a photo of the ticket; once they realized I had photographic evidence, they were suddenly ready to help me. The Lufthansa employee began communicating with other airlines and found a flight that would take me to my destination via Polish Airlines. I was required to once again go through security, re-check my bag, and once again pay for my checked bag and weight overage fees. This experience was incredibly stressful and very frustrating, as you can imagine. A Lufthansa employee told me I would be eligible for a refund. Please tell me what steps I need to take in order to make that happen. Thank you!

Good service … bus transfer upon arrival from plane to terminal: atrocious!!!

helpful and friendly. The Lufthanza people I dealt with before my holiday were so unhelpful by comparison.

Flight was delayed. Though I checked in with BA live chat three times, our special meals were not provided.

My experience with British Airways is excellent, thanks for all 🫶🏻✈️

Old tired plane, Uncomfortable business class seat. Breakfast dreadful and meagre. At least flight was on time!

The crew is very friendly and helpful. The food is good for airplane food. The flight is long and hard to sleep. The leg space is great. The plane arrived in plenty of time.

Enjoyable flight, helpful crew everything was organized to accommodate passengers.

Captain sick. Unable to get replacement so delayed me 30 hours, many others delayed 54 hours. TOTALLY DESTROYED ALL MY PLANS, including lost my rental car which would now cost over 5 times what I paid so stuck with buses n trains... lost hotel reservations.... HORRIBLE!!!

They’ve lost my bag and I have no way of really getting in touch with anyone and have received no updates.

Very crowded, no real explanation of food "chicken or pasta?" After dinner no drinks service. Plane was clean, but little help with finding soaces fir luggage to get into overhead bins. Many passengers putting 2 bags, hats, duty free in overhead bins so no space for roll ons

I was transferred to an American Airlines flight. The boarding was late and unorganized. The seating was extremely tight and uncomfortable. Will not use AA again.

The check-in of my luggage was terrible. When purchased my tickets, one luggage and one carry-on was part of the fight. My flight was switched from British to American Airline. During check-in of luggage at the airport, I was denied and had to pay extra $75. How do I get reimbursed for this extra luggage payment?

Everything you need to know for your flight from San Francisco to the United Kingdom

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