$338 Find Cheap Flights from the United Kingdom to San Francisco

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to San Francisco departing on 4/20. 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

KAYAK searches hundreds of travel sites at once for deals on flights to San Francisco

 
These are the airlines KAYAK users have selected most often from within our search results for flights to San Francisco
These are the airlines KAYAK users have selected most often from within our search results for flights to San Francisco
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Everything you should know

Cheapest round-trip
$499
Typical prices: $562-$762
United Airlines
Wed 4/15Thu 4/30
LHR - SFO • 1 stop
Cheapest non-stop
$504
Typical prices: $544-$769
Multiple Airlines
Mon 3/2Sun 3/8
LHR - SFO • Non-stop
Our travelers' advice
AI-powered summary based on content written by KAYAK users. AI can make mistakes.
British Airways offers free checked luggage both ways.
Bring a long charger for United's in-seat power.
User tips
User tips
User tips
User tips
Top airlines
United Airlines
Most flights • 14 per week
Virgin Atlantic
Best reviews • 7.5 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Top routes
MAN
-
SFO
Cheapest
LHR
-
SFO
Most popular
Insights
Insights
Insights
Insights
When to travel
February
Cheapest • 16% price drop
July
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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KAYAK searches 100s of sites at once to find you the best travel deals.
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Flight Deals
Booking Insights
Flight Deals

Cheap Flights from the United Kingdom to San Francisco

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

Wed, Apr 15 - Thu, Apr 30
United Airlines Logo
8:40 am - 4:15 pm
LHR
-
SFO
15h 35m
1 stop
United Airlines Logo
12:50 pm - 7:25 am
SFO
-
LHR
10h 35mnonstop
$499United Airlines
Wed, Apr 15 - Wed, Apr 29
United Airlines Logo
8:40 am - 4:15 pm
LHR
-
SFO
15h 35m
1 stop
United Airlines Logo
12:45 am - 7:40 am
SFO
-
LHR
22h 55m
1 stop
$500United Airlines
Mon, Apr 20 - Mon, Apr 27
Lufthansa Logo
6:30 am - 12:40 pm
LHR
-
SFO
14h 10m
1 stop
Lufthansa Logo
7:30 pm - 2:10 pm
SFO
-
LHR
10h 40mnonstop
$505Lufthansa
Sat, Mar 7 - Sun, Mar 15
American Airlines Logo
11:20 am - 11:48 pm
LGW
-
SFO
44h 28m
2 stops
American Airlines Logo
3:58 pm - 7:30 am
SFO
-
LGW
32h 32m
2 stops
$508American Airlines
Thu, Mar 5 - Mon, Mar 9
Lufthansa Logo
9:40 am - 3:55 pm
LCY
-
SFO
14h 15m
1 stop
Lufthansa Logo
7:50 pm - 5:40 pm
SFO
-
LCY
14h 50m
1 stop
$519Lufthansa
Sun, Apr 26 - Mon, May 11
British Airways Logo
7:35 am - 1:50 pm
GLA
-
SFO
14h 15m
1 stop
British Airways Logo
7:30 pm - 7:40 pm
SFO
-
GLA
16h 10m
1 stop
$583British Airways
Wed, Mar 11 - Sun, Mar 15
British Airways Logo
1:20 pm - 4:00 pm
EDI
-
SFO
33h 40m
1 stop
British Airways Logo
9:40 pm - 7:50 pm
SFO
-
EDI
15h 10m
1 stop
$688British Airways
Mon, Mar 9 - Mon, Mar 16
Virgin Atlantic Logo
6:05 am - 12:50 pm
GLA
-
SFO
13h 45m
1 stop
Virgin Atlantic Logo
2:55 pm - 4:35 pm
SFO
-
GLA
18h 40m
1 stop
$756Virgin Atlantic
Tue, Mar 3 - Wed, Mar 18
Virgin Atlantic Logo
6:05 am - 11:50 am
GLA
-
SFO
13h 45m
1 stop
Virgin Atlantic Logo
2:55 pm - 10:10 pm
SFO
-
GLA
24h 15m
1 stop
$758Virgin Atlantic
Tue, Mar 10 - Tue, Mar 17
American Airlines Logo
11:40 am - 7:45 pm
GLA
-
SFO
15h 05m
1 stop
American Airlines Logo
6:15 am - 9:50 am
SFO
-
GLA
20h 35m
2 stops
$761American Airlines
Booking Insights

KAYAK's insights & trends for flights to San Francisco

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

What is the cheapest flight to San Francisco?

These are the best round-trip prices found by users searching on KAYAK in the last 72 hours.

In the last 3 days, the lowest price for a flight to San Francisco was $338 for a one-way ticket from Manchester and $499 for a round-trip. The most popular route searched for by our users was for flights from London to San Francisco and the best round-trip deal found in the last 3 days was $499.

What is the cheapest month to fly to San Francisco?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights to San Francisco, 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 to San Francisco is September, where tickets cost $667 on average for one-way flights. On the other hand, the most expensive months are July and August, where the average cost of tickets from the United Kingdom is $1,018 and $979 respectively. For return trips, the best month to travel is February with an average price of $564.

What is a good deal for flights to San Francisco?

If you’re looking for cheap airfare to San Francisco, 25% of our users found tickets to San Francisco for the following prices or less: From London Heathrow Airport $555 one-way - $623 round-trip.

How far in advance should I book a flight to San Francisco?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights to San Francisco, 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, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 23 days before departure.

Good to know

Low seasonJanuary
Cheapest flight$338
Best time to beat the crowds with an average 9% drop in price.
Most popular time to fly with an average 25% increase in price.
Flight from Manchester to San Francisco

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

Insights shared by verified travelers who flew the route from the United Kingdom to San Francisco 
AntonFlew with United Airlines
LHR
-
SFO
Feb 2026
United has a cool arrival lounge in london but it is a bit hard to find, after customs look left
AlastairFlew with British Airways
LHR
-
SFO
Feb 2025
Make sure your free checked luggage is for outward and return flights.
Verified travelerFlew with United Airlines
LHR
-
SFO
Sep 2024
Download all your music. Add shows and movies to your queue. Bring short so you can relax. Bring long charger cords.

FAQs - booking San Francisco flights

  • Is it possible to hire a car at San Francisco International Airport?

    All the car hire companies at San Francisco International Airport are located at one central. Take the AirTrain Blue Line from the airport terminals to the Rental Car Centre where you can collect your car.

  • What hotels are near San Francisco International Airport?

    La Quinta Inn & Suites San Francisco Airport West is nearly 2 miles from San Francisco International Airport and has a 24-hour reception and a free shuttle bus for airport transfers. A slightly more luxurious option, also with free shuttle, is The Westin San Francisco Airport which is only a mile from the airport.

  • Are there shower facilities at San Francisco International Airport?

    There are private shower rooms for rent pre-security in the international terminal near Gate G for you to freshen up after your flight to San Francisco. No problem if you don’t have soap and shampoo, you can buy travel-size bath and toiletry products when you pay for your shower room.

  • What car parking facilities are available at San Francisco International Airport?

    Car parks exist at every terminal and are either paid hourly or are available for long-term stay. It is possible to pay for parking using cash or credit card, when you leave the parking space after your flight to San Francisco.

  • What is the cheapest flight to San Francisco?

    In the last 3 days, the lowest price for a flight to San Francisco was $338 for a one-way ticket from Manchester and $499 for a round-trip. The most popular route searched for by our users was for flights from London to San Francisco and the best round-trip deal found in the last 3 days was $499.

  • How far is San Francisco Airport from central San Francisco?

    The distance between San Francisco Airport and downtown San Francisco is 12 miles.

  • What is the name of San Francisco’s airport?

    San Francisco is served by San Francisco Airport, also commonly referred to as San Francisco or San Francisco Intl. The airport code is SFO.

  • How much is a flight to San Francisco?

    On average, a flight to San Francisco costs $680. The cheapest price found on KAYAK in the last 2 weeks cost $473 and departed from London Heathrow Airport.

  • What is the cheapest day to fly to San Francisco?

    Based on KAYAK data, the cheapest day to fly to San Francisco is Thursday where tickets can be as cheap as $669. On the other hand, the most expensive day to fly is Monday, where prices are $759 on average.

  • How does KAYAK find such low prices on flights to San Francisco?

    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 to San Francisco.

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

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

  • What is the Hacker Fare option on flights to San Francisco?

    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 to San Francisco 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 to San Francisco?

    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 San Francisco 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 San Francisco?

    The cheapest time of day to fly to San Francisco is generally in the afternoon, when flights cost $707 on average. The most expensive time of day to fly to San Francisco is generally in the morning, which is peak travel time and where the average cost of a ticket is $739.

Top tips for finding cheap flights to San Francisco

  • Looking for a cheap flight? 25% of our users found flights on this route for $555 or less one-way and $623 or less round-trip.
  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest San Francisco flight deals.
  • If you are booking flights to San Francisco, be sure to look at flights to San Francisco International Airport and Oakland International Airport, both of which are located in the San Francisco area. While most of the larger airlines fly into San Francisco International Airport, some airlines (such as British Airways) also fly from the UK into Oakland International. Other airlines (such as Norwegian) only fly into Oakland, but it is worth having a look to compare the prices.
  • Stressed about flying – look no further than San Francisco International Airport’s ‘Wag Brigade’. This Brigade consists of dogs (and now a pig) – brought in by the San Francisco Society for the Prevention of Cruelty to Animals – that wander around the terminals with their handlers to bring calm and happiness to nervous travellers. The animals, selected specifically for their temperament and suitability for airports, wear vests with the words “Pet Me!” written on them so you know who they are.
  • If you have a layover for four hours or more after your flight to San Francisco, take advantage of the time to venture into San Francisco and the Peninsula Bay area. This can be done easily on public transport – catching the BART train from the airport to, for example, Montgomery Street Station, will take you to Chinatown, the historic heart of San Francisco and Northbeach which, with its Italian influence, has a mixture of jazz clubs, galleries, restaurants and gelato shops. The trip will take you 30 minutes one way and tickets can be purchased at the station.
  • Fancy pampering yourself while you wait for your next flight, XpresSpa services, which exist at all terminals, are the perfect places to go. These spas offer treatments such as manicures, pedicures, massages and facials – a perfect way to treat yourself in between flights or before you head into the city.
  • For families travelling with kids there are a range of activities to keep them happy while in between flights. There are play areas in T2 and T3 or you can visit the Aviation Museum and Library which is free of charge and contains exhibitions about the history of air transport and the development of commercial flights. For children (and adults) who love aviation – this is a good place to spend some time.

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

 
See real verified KAYAK customer reviews for airlines flying to San Francisco. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline from the United Kingdom to San Francisco. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with to San Francisco? 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.
7.5
Virgin AtlanticOverall score based on 678 reviews
6.9Food
7.7Boarding
8.2Crew
7.6Entertainment
7.3Comfort
Airline reviews

Food has been disappointing in both legs of flight to india

10.0 ExcellentRanj, Nov 2025
DEL - LHR
Read more Virgin Atlantic reviews

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 whole trip was smooth, and as comfortable as flying is these days. flight crew was friendly and very courteous and helpful.

Very poor. The flight was delayed from Toronto because some forget to do there job . I got to my connecting gate in San Francisco 10 minutes before the departure.but this didn’t let me board even though the flight was still there for an other 30 minutes. The the gentleman at the unite airline desk told me that they usually wait for passengers but air Canada called and told them not to we I been rerouted to Manila instead of Hong Kong . In San Francisco they mad me check in my carryon bag . I was told the it will directly go yo ho chi minn cuyt but I was told that by the Vietnams airline desk that’s not there I’m 10 hours behind my scheduled flight and looks like I I’m going without baggage. I don’t have a chance of catching ..

First class ticket gets you a choice of chips or nuts. . Just like economy Southwest. Also no screen in the seats. This is first class???!

Flight arrived 30 min early and bag was waiting at the baggage pickup. United Club HNL was one of the nicest in the system

Mean flight attendant. I wanted to reuse my plastic cup, but he (Matthew) said he can't for safety. I then said "I don't want water then" and he poured me a glass. I hope Matthew gets herpes and spends the rest of his life poor, lonely, and homeless.

Yet another flight in which beverage and snack service was skipped. Other that that, firmly mediocre. Landed early, to gate late due to congestion at the gates. Airline's fault or airports fault: unknown.

Both flights delayed. 2nd flight over 3 hours late mechanical issues

It was good but only meal served is very less. Meantime good to add rice and chicken in one of meal

Teeny tiny bathrooms, crew was not realistic about when we'd arrive.

On the way my flight entertainment wouldn’t work the screen went black and no matter how many times I tried to turn it on it wouldn’t. Food was surprisingly good but the tray tables were tiny so you couldn’t get anything else on the table. The seats hardly go back and are not overly comfortable. Wouldn’t fly United again.

The flight was significantly delayed for 6.5 hours because of snow. There was no communication once the plane returned to the gate regarding when the flight would resume. Other flights were departing while our flight was being unloaded for reasons unknown. Our flight also seemed out of the queue regarding further deicing, refueling, and waiting to Taxi to the runway.

They are always late and seats was also not having working charger

did not have enough meal for first class passengers so offer us snack

We were upgraded to Business Class. So comfortable with great service and food options

The flight was completely full. Crew was not happy. Everyone was rude and brusque. Travelling with an arm in a cast and seating in the first row of economy cabin (in front of the separation) I needed help retrieving my tray for the meal. A staff member literally threw the tray on my lap, without helping to take out the tray. Boarding was messy, with 300 people waiting in an encloses space with low ceiling. I will try to avoid AA next time I have a long flight.

The comfort of Business Class made this trip far more comfortable. I was indeed surprised when I asked one of the flight attendant to help me set up my "bed", she responded that "We don't make beds in Business Class any longer...only First Class" I believe her name was Giselle, but I'm not certain. She did instruct me how to adjust the seat, place the hooded cover and I clearly understood how to place the blanket and the cover. Additionally, the meal I was served (a beef dish) was almost inedible. The beef was tough and odd tasting. I didn't mention it as I was hoping to quickly settle down and try to get some sleep.

Amazing I love American. I’ll never fly anyone else if I can help it.

Everything about the flight was lovely. My only suggestion would be to offer a few more options of tv series from Apple TV or HBO.

After the door had been closed, the cockpit makes an announcement that catering is running late and it is not the airline's fault. It is their fault in the sense that we had to sit for 2 hours or more when we could have stayed in the terminal. Poor communications between catering and airline. This caused a young man to lose his temper and he went storming out hitting objects. He had complained to the gate agent that he had already waited at the gate 7 hours and when can the airplane leave? Airilnes do a poor job of explaining delays, maintenance issues, etc. whereas being truthful may gain more sympathy or understanding.

We were told the flight was delayed 5 times, then it was moved to the next day.

Excellent service; they helped me reschedule so I can fly in an earlier flight

Wonderful staff. The boarding process can be improved a little better by adequate prior communication but all in all they did fine. However the boarding gate was quite unfreindly to elderly and who needs help with sevral stairs.

Flight map did not work. Crew was great, food was good, plane took off on time and landed early. That's all I can ask.

I had a good comfortable seat. There was nearly an hour delay. There was an accident with the champagne, but I was well compensated. These things happen sometimes.

Very good. Comfortable and I felt well taken care of from start to finish

Bulkhead seats should not be an extra charge. They are extremely uncomfortable. And we missed our connecting flight due to slow luggage retreaval.

Not great - seats were very narrow and food was terrible.

Some of the crew was sassy and not super helpful. The food was okay, but it seems like they were all unprepared compared to my flight I did from JFK to Frankfurt

We missed our flight. There was not enough time built into the layover to get through immigration, customs, bagclaim, bag rechecking, and the long trip to another terminal and gate. Kayak really screwed up. We took the bus up to Wisconsin and then were picked up in Brookfield by private car. It was lucky we didnt miss the last bus out.

We were in premium economy seats that appeared to be locked in plae, No reclining. My aching back.

My touch screen at my seat wasn't working, the films BA advertised on the website for this flight were not available, and the plane was a little dated, food was good and the staff were good, just let down by the aircraft facilities.

Did not like the seating configuration at all with 2+3+2 in business class. Lacking total privacy and comfort

Check-in experience, for business call please provide a premium experience

Lost my luggage, ran out of food choices in business class, ground crew was completely unapologetic.

Excellent. The crew and flight were great. Checking in was easy and everyone was very helpful.

Entertainment devices on A380 need to be fixed, the seats might do with updates.

Everything. Employees offered to help me because I had to use a cane.

Check-in and boarding were great. On flight staff were rude and disrespectful. Paid for extra room and found it incredibly cramped. Bathrooms kept in poor condition. Overall negative experience.

Great seat in premium economy, great food and drinks throughout lots of in flight entertainment. 1 hour 40 min delayed flying out , 2 1/2 hour wait at passport control in tampa

My seat cushion was poor. The cushion was compressed and was uncomfortable for such a long flight.

Traveling to a place near San Francisco?

Book flights to San Francisco if you plan to visit one of these locations
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Everything you need to know for your flight to San Francisco

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