$220 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 7/19. 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 to the United Kingdom

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
London
London2 stops$596
Edinburgh
Edinburgh2 stops$556
Manchester
Manchester2 stops$516
Birmingham
Birmingham1 stop$615
Belfast
Belfast1 stop$652
Inverness
Inverness2 stops$508
Bristol
Bristol1 stop$795
Aberdeen
Aberdeen1 stop$659
Leeds
Leeds1 stop$643
Liverpool
Liverpool1 stop$718
Cardiff
Cardiff1 stop$804
Newquay
Newquay2 stops$993
Norwich
Norwich1 stop$1,037
London
London2 stops$596
Edinburgh
Edinburgh2 stops$556
Manchester
Manchester2 stops$516
Birmingham
Birmingham1 stop$615
Belfast
Belfast1 stop$652
Inverness
Inverness2 stops$508
Bristol
Bristol1 stop$795
Aberdeen
Aberdeen1 stop$659
Leeds
Leeds1 stop$643
Liverpool
Liverpool1 stop$718
Cardiff
Cardiff1 stop$804
Newquay
Newquay2 stops$993
Norwich
Norwich1 stop$1,037

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, Mar 6 - Mon, Mar 9
Scandinavian Airlines Logo
4:40 pm - 4:45 pm
SFO
-
MAN
40h 05m
2 stops
Scandinavian Airlines Logo
10:10 am - 3:35 pm
MAN
-
SFO
36h 25m
1 stop
$516Scandinavian Airlines
Fri, Mar 6 - Mon, Mar 9
Scandinavian Airlines Logo
4:40 pm - 7:45 pm
SFO
-
MAN
43h 05m
2 stops
Scandinavian Airlines Logo
9:55 am - 3:35 pm
MAN
-
SFO
36h 40m
2 stops
$544Scandinavian Airlines
Sun, Mar 15 - Mon, Mar 23
Lufthansa Logo
10:40 pm - 9:00 pm
SFO
-
LHR
15h 20m
1 stop
Lufthansa Logo
7:40 am - 8:35 pm
LHR
-
SFO
19h 55m
1 stop
$598Lufthansa
Tue, Mar 3 - Tue, Mar 17
British Airways Logo
8:40 pm - 7:25 pm
SFO
-
GLA
14h 45m
1 stop
British Airways Logo
8:55 am - 7:45 pm
GLA
-
SFO
17h 50m
1 stop
$628British Airways
Mon, Mar 2 - Mon, Mar 9
British Airways Logo
2:27 pm - 4:35 pm
SFO
-
GLA
18h 08m
2 stops
British Airways Logo
8:25 pm - 4:00 pm
GLA
-
SFO
26h 35m
1 stop
$630British Airways
Wed, Mar 4 - Wed, Mar 11
KLM Logo
11:02 am - 12:50 pm
SFO
-
BHX
17h 48m
2 stops
KLM Logo
6:15 am - 12:50 pm
BHX
-
SFO
13h 35m
1 stop
$647KLM
Mon, Mar 2 - Tue, Mar 10
Delta Logo
5:55 am - 4:35 pm
SFO
-
GLA
26h 40m
2 stops
Delta Logo
6:05 am - 12:50 pm
GLA
-
SFO
13h 45m
1 stop
$648Delta
Mon, Mar 2 - Mon, Mar 23
Lufthansa Logo
2:40 pm - 12:45 pm
SFO
-
BHX
14h 05m
1 stop
Lufthansa Logo
10:45 am - 8:35 pm
BHX
-
SFO
16h 50m
1 stop
$655Lufthansa
Mon, Mar 2 - Mon, Apr 27
Delta Logo
10:20 am - 5:50 pm
SFO
-
BHX
23h 30m
2 stops
Delta Logo
1:25 pm - 11:45 am
BHX
-
SFO
30h 20m
1 stop
$665Delta
Sun, Mar 1 - Mon, Apr 27
KLM Logo
1:55 pm - 8:05 pm
SFO
-
BHX
22h 10m
1 stop
KLM Logo
5:40 pm - 11:45 am
BHX
-
SFO
26h 05m
1 stop
$666KLM
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 $565 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 $565.

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 $803, 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 February, when tickets cost $660 (return) on average. On the other hand, the most expensive months are June and July, when the average cost of round-trip tickets is $1,051 and $884 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 Monday 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 6 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight$220
Best time to beat the crowds with an average 4% drop in price.
Most popular time to fly with an average 21% increase in price.
Flight from San Francisco to Birmingham

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 
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 - 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 in the morning, when round-trip flights cost $847 on average. Morning departures are around 1% cheaper 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 $967.

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 $367 one-way - $675 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 8154 reviews
7.9Comfort
8.1Boarding
7.8Entertainment
8.5Crew
7.2Food
Airline reviews

It was nt delta. It was aeromexo. Service was awful. They served a very small drink and NO snack for a 3hr and 35min flight. Then for the first 30 min of the flight is was talk and talk over head interruption the movie/ show i picked to watch.

6.0 GoodCindy, Feb 2026
SMF - GDL
Read more Delta reviews

It was nt delta. It was aeromexo. Service was awful. They served a very small drink and NO snack for a 3hr and 35min flight. Then for the first 30 min of the flight is was talk and talk over head interruption the movie/ show i picked to watch.

Delta One is extraordinary. I fly business when somebody hires me. I just wonder why there is such a chasm between business class and the insanely inhumane and nonsensical coach. The seats are not large enough to fit even my tiny wife. We fly 10% of what we did because we don’t want to pay 5-10 k but for $400 it’s unbearable. It seems like the accountants took over and made stupid decisions. Screw in 20 extra seats and make it so unbearable that people fly 90% less. Just put the damn price up and put some proper chairs in. But business, yay.

Delta’s staff is unmatched. From the gate agents, to the pilots, to the flight attendants… all top of the industry.

The flight was delayed for about 2 hrs. Other than it, it was good.

I am extremely disappointed that delta internal pilot manuals now refer to the Gulf of Mexico as the “gulf of America”. You can bow down to the Orange turd on your own. I will never fly delta again

No lunch on a x-country flight scheduled for 10:50 am departure, arrived 5+ hrs later. That requires a black box label before you pay for the tickets. Worst, when I checked in online, it's specifically said that lunch was served on his flight for economy Plus passengers.

Our flight from SFO to MSP was right on time on 11/15/2025. No delays. As we approached MSP at about 8 pm, we circled in the air until 8:40 pm so I don't call that efficient for MSP. I think the captain should announce the delay and why. (as if we all don't know that we are just circling around the area, slowing down, speeding up, slowing down.) Thank you. Marilyn Fischer

Staff were friendly and happy. Delta could make sure passengers that don't have the app know of changes. Without Kayak I would not have known about the change of gate or the delay. Kayak was faster to notify me.

The flight used a B767 with a very old interior from before 2014. The entertainment system did not work at all during the flight despite attempts to reset the system. It was like they flew this route just to be competitive.

Delayed flight (1hour) plus a long layover after an overnight flight with no backup plane available.

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

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.

The flight crew where really good. Better then the crew from BNE to SFO

Food should be changed in menu Many muslims travels in this airlime they need to add one Halal meal

left on time, reasonable boarding process arrived early luggage came out quickly

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.

Pushed back only to get deplaned due to a tire damaged by ground crew. They did at least go pretty fast. The bathrooms should be banned under the Geneva convention. No room to even sit straight on the toilet. The under-seat entertainment units block what little leg room there is.

United airlines has the best customer experience from booking to arrival. I always fly United airlines. The mileage program is excellent

from SFO-> FRA flight, AVML meal was significantly less compared to regular meal, especially no Desert, no Bread, no sides.

This was an older airplane. The cabin was constantly warm to hot throughout the 10 hour flight and there were no vents to personalize air flow. Also since it was an older plane, the material and comfort of the chairs were very uncomfortable. I left my flight with major soreness on my tailbone.

Older aircraft, no meal, only food was for purchase. Not impressed United.

Not pleasant trip cross country when the entertainment and WiFi system not working. No entertainment for entirety of route. Staff was rather nonchalant in that they dismissed the problem due to age of plane. It would have been nice to know this up front so I could have come prepared to read or download movies before boarding Coincidentally or not, there was a similar issue with the entertainment system on my previous flight I took on my fist leg of the trip. There are no seat TVs, so you must rely on the app when it works. United can do better. Also, what use it it to pay for boarding group 2 when half of the passengers are in the same line as you?

The boarding procedure got confusing because they wanted to weigh everyone’s carry-on. Apparently mine was 3 1/2 kg over their limit. I didn’t know they had a limit. And at the check-in desk, nothing was said about this. They wanted me to check the carry-on at no charge and that would have been fine except then they told me at my connection in London I would have to go outside to baggage claim retrieve my bag, and then recheck it. In other words, they could not check it to my final destination, only to London. I told him this was unacceptable so after a few minutes of discussion, they came back and said that my bag would be OK to carry on the plane. It seems that if you have a connection then the weight is not as important. Then when I actually went to board the boarding agent said I needed a tag indicating that my bag had been weighed, even though she had just five minutes ago talked to the same person who cleared me. Lots of confusion seems like a very bad process. They need to improve this.

My flight being automatically moved messed up my travel plans, and I had to quickly find an alternative mode of transportation. I couldn’t get a refund from any of the companies involved. Kayak, Ibiza, or Vueling. I am still unsure of how to settle my concern.

Plane delayed due to weather. Plane boarded, then told to unboard due to a maintenance issue.

the seats were so cramped you could barely move. it was difficult to eat when passengers would recline their seats. the seats were so flimsy and unstable that whenever someone got in and out of their seat, it bounced like a spring back in your face. the movies were nice. the food was terrible. even though the conditions were terrible, they tried to pressure passengers to relocate their seats to accommodate adults who were related and wanted to sit next to each other, even after the passengers expressed that they did not want to move for that purpose. on the connecting flight, the “service” consisted of items for purchase. even though the flight was only 45 minutes, once again passengers (including me) were pressured to relocate for people to sit next to each other. they couldn’t be apart for 45 minutes? this was much less compelling than being apart for an 8 hour flight.

Everything went smoothly, and we even arrived 40min earlier than scheduled, on an Orland-Madrid route.

The staff was very nice and helpful. Some of the best crew I have met.

Suddenly, I don't find my flight back on the app Help Ticket 0757345716866 Hoeflich Flight back Sunday ib5333 Ib2629 Ib4268

Was all good.l including a sofdrink. AA improved significantly. There was no entertainment.

I've taken British Airways before and it has been great. On this trip to Spain and Portugal we had two BA flights. On both flights we were taken by bus from the terminal out to the plane on the tarmac. There were many older folks on these flights, and to ask people in their 70s to lug their carry-on and personal items up the long mobile staircase to the plane entrance, is very disturbing. I won't be taking British Airways in the future. Many people on these flights were very unhappy.

The food on the flight was of marginal quality. Small bits of chicken, instant mashed potatoes and some carrots. The rolls were very dry, nearly inedible. The seats were quite small and didn’t allow for any shifting of position during the flight. There was limited leg room.0

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

Check in was was and the agent was very friendly and helpful The lounge was nice...boarding was straight from the lounge Everything worked at our seats, and video entertainment was good ..food was mediocre

Airlines have to stop assuming passengers bring entertainment. Provide it like you used to in business class and above!! N

Need to offer Better food from LAX to London Service from London to Delhi very delayed after take off.

Great crew and food and beverage. Seating tight but not the airline's fault. Will definitely fly BA in future!

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.

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.

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

Information on your arrival and departure airports