Latest deals
Insights
FAQs
Reviews
Price Alerts

Cheap flights from the United Kingdom to San Francisco from £266

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from the United Kingdom to San Francisco departing on 2/10. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Discover deals from 900+ travel sites with momondo.

Voted winner of Europe's Best Travel App 2023

Save money when you book flights with momondo

Big names, great deals

Big names, great deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customise your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from the United Kingdom to San Francisco

Recent return flight deals from the United Kingdom to San Francisco

Delta Logo
06:15 - 12:50LHR-SFO
14h 35m1 stop
Delta Logo
16:30 - 10:40SFO-LHR
10h 10mdirect
£393Delta
Find Deal
Thu, 9 Oct - Fri, 6 Mar
United Airlines Logo
12:20 - 15:25LHR-SFO
11h 05mdirect
United Airlines Logo
16:05 - 10:25SFO-LHR
10h 20mdirect
£394United Airlines
Find Deal
Fri, 26 Sep - Sun, 12 Oct
British Airways Logo
12:15 - 22:54LHR-SFO
18h 39m1 stop
British Airways Logo
15:51 - 12:50SFO-LHR
12h 59m1 stop
£398British Airways
Find Deal
Sat, 27 Sep - Sat, 11 Oct
Lufthansa Logo
09:50 - 16:55LCY-SFO
14h 05m1 stop
Lufthansa Logo
14:45 - 16:40SFO-LCY
41h 55m2 stops
£400Lufthansa
Find Deal
Tue, 28 Oct - Tue, 4 Nov
Virgin Atlantic Logo
11:15 - 14:15LHR-SFO
11h 00mdirect
Virgin Atlantic Logo
20:58 - 11:20SFO-LHR
30h 22m1 stop
£401Virgin Atlantic
Find Deal
Mon, 29 Sep - Sat, 4 Oct
British Airways Logo
19:05 - 09:24LHR-SFO
22h 19m1 stop
British Airways Logo
08:00 - 09:25SFO-LHR
17h 25m1 stop
£408British Airways
Find Deal
Sun, 28 Sep - Thu, 9 Oct
Virgin Atlantic Logo
16:25 - 19:30LHR-SFO
11h 05mdirect
Virgin Atlantic Logo
21:20 - 15:40SFO-LHR
10h 20mdirect
£410Virgin Atlantic
Find Deal
Tue, 14 Oct - Thu, 23 Oct
Lufthansa Logo
09:30 - 16:00LHR-SFO
14h 30m1 stop
Lufthansa Logo
19:50 - 14:10SFO-LHR
10h 20mdirect
£414Lufthansa
Find Deal
Wed, 15 Oct - Mon, 20 Oct
KLM Logo
09:20 - 11:50NCL-SFO
34h 30m1 stop
KLM Logo
13:55 - 10:30SFO-NCL
12h 35m1 stop
£1,133KLM
Find Deal
Sat, 20 Dec - Fri, 2 Jan
KLM Logo
06:00 - 11:50NCL-SFO
13h 50m1 stop
KLM Logo
13:55 - 10:30SFO-NCL
12h 35m1 stop
£1,134KLM
Find Deal
Fri, 19 Dec - Fri, 2 Jan

Air Canada flights from United Kingdom to San Francisco

Our best Air Canada deals on United Kingdom to San Francisco flight tickets
Air Canada
27 Sept
LHR08:30London Heathrow
20h 23m
1 stop
SFO20:53San Francisco
29 Sept
SFO23:45San Francisco
25h 50m
1 stop
LHR09:35London Heathrow
£395
Find similar
Air Canada
16 Nov
LHR15:00London Heathrow
29h 20m
2 stops
SFO12:20San Francisco
23 Nov
SFO13:20San Francisco
14h 30m
1 stop
LHR11:50London Heathrow
£397
Find similar
Air Canada
27 Sept
LHR08:30London Heathrow
19h 21m
2 stops
SFO19:51San Francisco
8 Oct
SFO08:30San Francisco
14h 00m
1 stop
LHR06:30London Heathrow
£399
Find similar

SWISS flights from United Kingdom to San Francisco

Our best SWISS deals on United Kingdom to San Francisco flight tickets
SWISS
27 Sept
LGW18:40London Gatwick
29h 55m
1 stop
SFO16:35San Francisco
8 Oct
SFO19:30San Francisco
14h 25m
1 stop
LGW17:55London Gatwick
£395
Find similar
SWISS
8 Nov
LCY08:40London City
15h 50m
1 stop
SFO16:30San Francisco
15 Nov
SFO19:25San Francisco
13h 40m
1 stop
LCY17:05London City
£396
Find similar
SWISS
4 Nov
LGW18:40London Gatwick
29h 50m
1 stop
SFO16:30San Francisco
9 Nov
SFO19:25San Francisco
14h 25m
1 stop
LGW17:50London Gatwick
£397
Find similar

momondo Fare Finder

 
Customise your flight search to find flights from United Kingdom to San Francisco that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 279,928 searches. Data last updated 15 September 2025.
Use the filters below to find and compare flights from the United Kingdom to San Francisco that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Thu 9/10

06:15-12:50

1 stop14h 35m

San Francisco

Fri 6/3

16:30-10:40

Nonstop10h 10m

£393

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Fri 26/9

12:20-15:25

Nonstop11h 05m

San Francisco

Sun 12/10

16:05-10:25

Nonstop10h 20m

£394

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Sat 27/9

12:15-22:54

1 stop18h 39m

San Francisco

Sat 11/10

15:51-12:50

1 stop12h 59m

£398

LondonSan Francisco

LCY - SFO

LCYSFO

London City

Tue 28/10

09:50-16:55

1 stop14h 05m

San Francisco

Tue 4/11

14:45-16:40

2 stops41h 55m

£400

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Mon 29/9

11:15-14:15

Nonstop11h 00m

San Francisco

Sat 4/10

20:58-11:20

1 stop30h 22m

£401

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Sun 28/9

19:05-09:24

1 stop22h 19m

San Francisco

Thu 9/10

08:00-09:25

1 stop17h 25m

£408

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Tue 14/10

16:25-19:30

Nonstop11h 05m

San Francisco

Thu 23/10

21:20-15:40

Nonstop10h 20m

£410

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Wed 15/10

09:30-16:00

1 stop14h 30m

San Francisco

Mon 20/10

19:50-14:10

Nonstop10h 20m

£414

Newcastle upon TyneSan Francisco

NCL - SFO

NCLSFO

Newcastle upon Tyne

Sat 20/12

09:20-11:50

1 stop34h 30m

San Francisco

Fri 2/1

13:55-10:30

1 stop12h 35m

£1,133

Newcastle upon TyneSan Francisco

NCL - SFO

NCLSFO

Newcastle upon Tyne

Fri 19/12

06:00-11:50

1 stop13h 50m

San Francisco

Fri 2/1

13:55-10:30

1 stop12h 35m

£1,134

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to San Francisco from

How to get the cheapest flight ticket from United Kingdom to San Francisco

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to San Francisco?

The month of February is, on average, the cheapest month to fly to San Francisco from United Kingdom, with most prices found around £417. If you are unable to visit San Francisco during the month of February, then departing from United Kingdom during the month September is also very affordable. Most momondo users find prices during this month for around £424.

What is the cheapest day to depart on your flight to San Francisco?

The cheapest day to depart on your flight to San Francisco is on a Tuesday when prices can be found for as low as £556. This is often the case because there is less demand to fly during this day of the week. Flights from United Kingdom to San Francisco on a Sunday will generally be more expensive and average around £632. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to San Francisco?

Our most recent data shows that the best time of day to fly to San Francisco is in the evening. Flights from United Kingdom to San Francisco during this time can be as low as £474. Try not to purchase tickets at midday because they tend to be around £934. Of course, these prices can vary depending on the time of year and what airport you fly to.

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

Fly from London Heathrow to San Francisco for the best United Kingdom - San Francisco flight prices

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

You are more likely to see cheaper flights to San Francisco from United Kingdom when booking weeks ahead of your departure date. In general, you can expect to find flights to San Francisco for around £493 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Francisco from United Kingdom for as low as £456 on momondo.

What cabin class options are available on United Kingdom to San Francisco flights?

There are 4 cabin classes available to choose from on United Kingdom to San Francisco flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on United Kingdom to San Francisco flights?

You could potentially save up to 28% on your flight if you consider stops on a United Kingdom to San Francisco flight.

Cheap United Kingdom to San Francisco flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from United Kingdom to San Francisco

Best price found

£494

Fastest flight time

11h 00m

Direct flights

Every day

Airports in San Francisco

1 airport
The best one-way flight to San Francisco from United Kingdom in the past 72 hours is £494. The best return flight deal from United Kingdom to San Francisco found on momondo in the last 72 hours is £462.
The fastest flight from United Kingdom to San Francisco takes 11h 00m
Direct flights go from United Kingdom to San Francisco every day.
There is 1 airport near San Francisco: San Francisco (SFO)
Search flight deals

  • When did momondo last update prices for flights from United Kingdom to San Francisco Airport?

    Prices for flights from United Kingdom to San Francisco Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from United Kingdom to San Francisco Airport?

  • How old do you have to be to fly from United Kingdom to San Francisco Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from United Kingdom to San Francisco Airport.

  • What documentation or ID do you need to fly to San Francisco Airport?

    The necessary travel and health documents for your San Francisco Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from United Kingdom to San Francisco?

Best airlines flying from United Kingdom to San Francisco

Compare and see reviews for airlines that fly from United Kingdom to San Francisco with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom £235Free CancellationRating
7.9
7,956 reviews
Search Delta flights
TAP AIR PORTUGALPriceFrom £347Free CancellationRating
7.1
1,977 reviews
Search TAP AIR PORTUGAL flights
SWISSPriceFrom £349Free CancellationRating
7.5
1,730 reviews
Search SWISS flights
Aer LingusPriceFrom £350Free CancellationRating
7.2
1,271 reviews
Search Aer Lingus flights
Scandinavian AirlinesPriceFrom £351Free CancellationRating
7.4
1,484 reviews
Search Scandinavian Airlines flights
Brussels AirlinesPriceFrom £355Free CancellationRating
7.2
359 reviews
Search Brussels Airlines flights
Air CanadaPriceFrom £356Free CancellationRating
7.1
10,000 reviews
Search Air Canada flights
Virgin AtlanticPriceFrom £361Free CancellationRating
7.4
664 reviews
Search Virgin Atlantic flights
United AirlinesPriceFrom £364Free CancellationRating
7.4
8,931 reviews
Search United Airlines flights
British AirwaysPriceFrom £364Free CancellationRating
6.6
7,361 reviews
Search British Airways flights

Travelling to a place near San Francisco?

Book flights to San Francisco if you plan to visit one of these locations
Carmel-by-the-Sea
Santa Clara
Seaside
Vacaville
Salinas
Rohnert Park
Campbell
Sunnyvale
San Ramon
South San Francisco
Capitola
Palo Alto
Millbrae
San Bruno
Sausalito
Santa Cruz
Woodland
Redwood City
Burlingame
Modesto

Why use momondo?

Why should I use momondo to find a flight deal from United Kingdom to San Francisco?

Finding the right flight to San Francisco from United Kingdom is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to San Francisco quick and easy, saving you time and money.

Can I find flights from United Kingdom to San Francisco with flexible booking policies on momondo?

Flights from United Kingdom to San Francisco with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from United Kingdom to San Francisco?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from United Kingdom to San Francisco.

I’m not ready to book a flight from United Kingdom to San Francisco right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to San Francisco from United Kingdom. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

An easier way to manage your San Francisco trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Wed 15/10
Wed 22/10
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States