$199 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 10/7. 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.
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1 adult, Economy

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Cheap Flights from San Francisco to the United Kingdom

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
London
London2 stops$520
Edinburgh
Edinburgh2 stops$686
Manchester
Manchester1 stop$470
Birmingham
Birmingham1 stop$564
Belfast
Belfast1 stop$632
Inverness
Inverness2 stops$481
Bristol
Bristol3 stops$537
Aberdeen
Aberdeen1 stop$566
Liverpool
Liverpool2 stops$825
Leeds
Leeds1 stop$626
Cardiff
Cardiff1 stop$808
Grimsby
Grimsby1 stop$736
Kirkwall
Kirkwall3 stops$1,661
London
London2 stops$520
Edinburgh
Edinburgh2 stops$686
Manchester
Manchester1 stop$470
Birmingham
Birmingham1 stop$564
Belfast
Belfast1 stop$632
Inverness
Inverness2 stops$481
Bristol
Bristol3 stops$537
Aberdeen
Aberdeen1 stop$566
Liverpool
Liverpool2 stops$825
Leeds
Leeds1 stop$626
Cardiff
Cardiff1 stop$808
Grimsby
Grimsby1 stop$736
Kirkwall
Kirkwall3 stops$1,661

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 round-trip 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 round-trip flight deals from San Francisco to the United Kingdom

Fri, Nov 7 - Thu, Nov 20
TAP AIR PORTUGAL Logo
7:10 pm - 10:35 amSFO-MAN
31h 25m1 stop
TAP AIR PORTUGAL Logo
5:10 pm - 4:05 pmMAN-SFO
30h 55m1 stop
$470TAP AIR PORTUGAL
Find Deal
Thu, Oct 23 - Thu, Nov 6
TAP AIR PORTUGAL Logo
4:20 pm - 10:05 amSFO-MAN
33h 45m1 stop
TAP AIR PORTUGAL Logo
5:10 pm - 4:05 pmMAN-SFO
30h 55m1 stop
$473TAP AIR PORTUGAL
Find Deal
Sun, Sep 28 - Tue, Oct 14
United Airlines Logo
4:05 pm - 10:25 amSFO-LHR
10h 20mnonstop
United Airlines Logo
6:55 am - 2:30 pmLHR-SFO
15h 35m1 stop
$541United Airlines
Find Deal
Fri, Nov 14 - Sun, Nov 16
United Airlines Logo
5:25 pm - 12:00 pmSFO-LHR
10h 35mnonstop
United Airlines Logo
9:00 am - 4:30 pmLHR-SFO
15h 30m1 stop
$559United Airlines
Find Deal
Mon, Sep 22 - Tue, Oct 7
Virgin Atlantic Logo
4:05 pm - 10:25 amSFO-LHR
10h 20mnonstop
Virgin Atlantic Logo
11:15 am - 2:15 pmLHR-SFO
11h 00mnonstop
$560Virgin Atlantic
Find Deal
Sun, Sep 28 - Tue, Oct 14
Virgin Atlantic Logo
4:05 pm - 10:25 amSFO-LHR
10h 20mnonstop
Virgin Atlantic Logo
6:30 am - 11:45 amLHR-SFO
13h 15m1 stop
$562Virgin Atlantic
Find Deal
Mon, Feb 16 - Fri, Feb 27
British Airways Logo
8:40 pm - 6:15 pmSFO-GLA
13h 35m1 stop
British Airways Logo
8:15 am - 3:00 pmGLA-SFO
14h 45m1 stop
$563British Airways
Find Deal
Sun, Mar 1 - Thu, Mar 19
British Airways Logo
8:40 pm - 8:25 pmSFO-GLA
15h 45m1 stop
British Airways Logo
12:45 pm - 7:45 pmGLA-SFO
14h 00m1 stop
$564British Airways
Find Deal
Sun, Oct 5 - Tue, Oct 14
Delta Logo
6:00 am - 8:10 amSFO-GLA
18h 10m2 stops
Delta Logo
6:00 am - 11:45 amGLA-SFO
13h 45m1 stop
$611Delta
Find Deal
Tue, Oct 14 - Wed, Oct 22
Delta Logo
12:35 pm - 4:40 pmSFO-LCY
20h 05m2 stops
Delta Logo
10:00 am - 7:30 pmLCY-SFO
17h 30m2 stops
$652Delta
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?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest ticket to the United Kingdom from San Francisco found in the last 72 hours was to London, at $517 round-trip. 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 $517.

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

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of $694, prices are generally cheapest when you fly direct.

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 $646 (return) on average. On the other hand, the most expensive months are June and December, when the average cost of round-trip tickets is $1,035 and $900 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.

For San Francisco to United Kingdom, Wednesday is the cheapest day to fly on average and Saturday is the most expensive. Flying from United Kingdom back to San Francisco, the best deals are generally found on Thursday, with Sunday being the most expensive.

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 the flight from San Francisco to the United Kingdom, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 3 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight$199
Best time to beat the crowds but there is an average 1% increase in price.
Most popular time to fly with an average 17% increase in price.
Flight from San Francisco to Edinburgh

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

Insights shared by verified travelers 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 travelers 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 round-trip 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 round-trip flights cost $852 on average. Morning departures are around 3% 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 $978.

Top tips for finding cheap flights to the United Kingdom

  • Looking for a cheap flight? 25% of our users found tickets from San Francisco to the following destinations at these prices or less: London $389 one-way - $655 round-trip

Reviews of the top 5 airlines serving 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.
7.9
DeltaOverall score based on 7957 reviews
8.2Boarding
8.5Crew
7.9Comfort
7.3Food
7.9Entertainment
Airline reviews

Flight delayed for two and half hours and then canceled altogether due to mechanical issues. No mechanic onsite to fix so had to send one from LAX.

2.0 MediocreAnonymous, Sep 2025SNA - SEA
Read more Delta reviews

Flight delayed for two and half hours and then canceled altogether due to mechanical issues. No mechanic onsite to fix so had to send one from LAX.

My husband upgraded our seats and I don't know if it was due to the type of planet was or if they didn't upgrade our seats. We were supposed to be in I believe comfort seats and they were just as tight as any other seat- no leg room and we are very tall people but at least it wasn't extremely cold. My husband did put in a complaint about our seating because he paid extra and if we would have known that the space and the tightness would have been the same, we just would have gotten the emergency row emergency row seats that we normally get. We love Delta but both our flights coming home we're not good. Oh I forgot to mention that on our flight to Hawaii our luggage wheels got broke and we had to purse new luggage on vacation then we never had this problem so we didn't know protocol and reported it after we got home only for them to tell is we only had 24hrs to report the damage. Not sure what was going on with Delta this vacation trip.

Crew was excellent. Comfort seats not as nice as other kinds of planes.

It was a great flight and the stewards and stewardess were all kind and accommodating!! The seats were comfortable and entertainment screen excellent!

There are 4 flights in consecutive gates with about the same departure time. Two flights were boarding at the same time. One was delayed or boarding would be happening at the same time. I am not sure what Delta and LAX need to do to have a better layout at the end of Terminal 2

There was a security issue at the airport and we were unable to land. We circled endlessly and then landed at another airfield for fuel. We then circled the airport again, almost landed but didn’t fully touch down before circling again. I am thankful to the crew for keeping us safe- the issue was the airline and staff at the airport getting us seats on our connecting flights. That part was hours of searching for someone and getting in double my steps.

Most aspects were good however if they assign boarding zones they ought to enforce them or why bother? My luggage from SAN-JFK-MAD was lost in NY so I without my main bag for two days upon arrival in Spain. They were helpful in tracking it and eventually delivered it to my hotel. The flub was because of a delay upon arrival in NYC. I had booked 2 1/2 hours between flights but we had to hold on the taxiway for an hour after landing while waiting for a clear gate which likely caused the baggage error.

Excellent flight, the planes were newer, they did a nice job with boarding, great service overall.

It would be nice if was given wires ear buds. Overall was a good experience was able to sleep on the plane

737-800 in first class was pretty dumpy. Seat had an uncomfortable angle, storage under the seat was blocked so even my very modest backpack didn't fit, power outlet was flaky. Weird tiny seat pockets that couldn't hold a gallon ziploc bag, emesis bag missing, etc. etc. No in-flight service due to turbulence. Crew was excellent, boarding was smooth despite a full flight.

We had to deboard 2 times due to maintenance issues. They changed the plane, and then we got deviated to LAX due to maibtenance issues on the other plane, had to sleep at LAX and los a full day.

From the first moment you interact with United Airlines, you can expect nothing less but extreme frustration. The baggage handler at the bag drop seems completely unbothered by the presence of customers waiting in line. No help was extended to load the baggage whatsoever. And if any of your bags is overweight by 0.01 pound they will make you re-distribute everything in your suitcase just to play power trip. When it was time to board no help was extended to customers to locate their seats. Moreover. It was a chaotic mess at the gate when it was unclear who should board first and everyone just bunched up, trying to get on the plane. I am sure the crew was doing their best to perform their jobs while being paid their wages however it shouldn’t be that hard to smile once or twice when you’re in the business if serving customers. It is a shame for the United States of America to have a flagship carrier of such low caliber. Our flight was also delayed by about an hour and a half due to further delays prior to our inbound flight. Being someone who has travelled for both business and leisure in Asia, Europe, and South America I have never experienced such poor quality of service.

The pilots were late and it made us 1 hour late. The meat was tough and bok choy was also tough.

Stuck on tarmac for two hours plus a 5.5 hour flight. Rude flight attendant. And no meals, not even for purchase!

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.

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

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.

It was fortunate that the flight arrived in London in accordance with schedule, and the luggage was promptly transferred to the luggage carousel. However, I find it concerning that even minor issues in economy cabins are prevalent within the industry. American Airlines, in particular, appears to have the least legroom and feels more crowded due to the proximity of neighboring passengers. Additionally, the crew’s adherence to protocol is inconsistent. While they may enforce certain rules set by the FAA on a select few individuals, they often overlook numerous violations, such as failing to reset seat recline during landing.

Easy and organized getting in and out of the flight

We liked the flight but while we purchased an aisle seat, our seats had a different configuration on this flight. A fellow passenger suggested that the airplane had been changed. Too bad we were not informed and had no chance to modify our seat preferences. We were stuck in the window and middle seats with no chance to walk around and go to the bathroom without disturbing our sleeping fellow passenger.

The crew were not very personable. The crew did not serve tea or coffee. The bathroom was not kept clean. Two out of the 5 toilets in the cabin weren't working.

It was extremely cold in the back of the plane. The seats are uncomfortable and space very small. Crew was excellent as usual.

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.

The seating has become ridiculous… like a contest to see how narrow and short they can be made- forcing anyone over 5’1 to pay more to not be twisting oneself into a pretzel. Really insane- would have thought BA was better than this. Frankly- it cancels out a lot of the positive aspects.

flight was delayed from BWI to London - missed my connecting flight & then connecting flight (also British Air) was delayed - food is awful, TV & movie selection is great

Super tight economy class. My knees were hitting the back of seat in front of me (I'm only 5'6"). My small backpack (sized according to their required dimensions) would not fit under the seat in front of me because there is a box (is that the life jacket?) in the way. Over all, extremely uncomfortable. I forgive the tasteless food, but the tight seating was torture

Didn’t fly with them as someone had cancelled my flight

Online check-in 24 hours in advance something seems not so easy to check in to pick seats and to print a boarding pass

I like the crew, very welcoming. Food can be better. The seat arms don’t go up so. I could use the empty seat next to mine to relax better. 3hrs delay 😠

Boarding was efficient and quick, crew was very attentive, seats were comfortable.

Everything was very good! I personally struggled with the heat in the cabin for the first 2 hours

Crying baby the ENTIRE flight. Not your fault, but I paid 2700 for a premium economy ticket and it wasn't worth it. should have just stuck with coach. flight attendants very mediocre - minimal effort. Plane didn't seem very clean. Didn't have any cleansing wipes - most airlines give you this when you board. Flat screen scrolling didn't work. Toiletry case a joke - why bother at all?

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

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