Latest deals
Insights
FAQs
Reviews
Price Alerts

Cheap flights from the United Kingdom to San Francisco from $318

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 9/9. 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.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize 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 round-trip flight deals from the United Kingdom to San Francisco

Aer Lingus Logo
8:50 am - 3:55 pmLHR-SFO
15h 05m1 stop
Aer Lingus Logo
5:40 pm - 2:55 pmSFO-LHR
13h 15m1 stop
$450Aer Lingus
Find Deal
Sat, Sep 6 - Sat, Sep 20
Aer Lingus Logo
8:50 am - 3:55 pmLHR-SFO
15h 05m1 stop
Aer Lingus Logo
5:40 pm - 2:55 pmSFO-LHR
13h 15m1 stop
$455Aer Lingus
Find Deal
Sat, Sep 6 - Sat, Sep 20
British Airways Logo
3:05 pm - 11:26 amLGW-SFO
28h 21m1 stop
British Airways Logo
6:10 am - 8:10 amSFO-LGW
18h 00m1 stop
$546British Airways
Find Deal
Tue, Sep 16 - Tue, Sep 23
British Airways Logo
3:05 pm - 11:26 amLGW-SFO
28h 21m1 stop
British Airways Logo
10:43 pm - 8:10 amSFO-LGW
25h 27m1 stop
$557British Airways
Find Deal
Fri, Sep 5 - Mon, Sep 8
Lufthansa Logo
8:45 am - 4:00 pmLCY-SFO
15h 15m1 stop
Lufthansa Logo
7:25 pm - 6:35 pmSFO-LCY
15h 10m1 stop
$586Lufthansa
Find Deal
Mon, Sep 22 - Sun, Oct 5
Lufthansa Logo
8:45 am - 4:00 pmLCY-SFO
15h 15m1 stop
Lufthansa Logo
7:25 pm - 6:35 pmSFO-LCY
15h 10m1 stop
$588Lufthansa
Find Deal
Mon, Sep 22 - Sun, Oct 5
Delta Logo
6:00 am - 12:50 pmNCL-SFO
13h 50m1 stop
Delta Logo
7:00 am - 10:20 amSFO-NCL
19h 20m2 stops
$724Delta
Find Deal
Wed, Oct 29 - Wed, Nov 12
Delta Logo
6:00 am - 11:45 amNCL-SFO
13h 45m1 stop
Delta Logo
5:55 am - 11:50 amSFO-NCL
21h 55m2 stops
$727Delta
Find Deal
Wed, Sep 17 - Wed, Sep 24
United Airlines Logo
1:50 pm - 11:31 pmEDI-SFO
17h 41m1 stop
United Airlines Logo
11:50 am - 11:40 amSFO-EDI
15h 50m1 stop
$758United Airlines
Find Deal
Tue, Sep 16 - Tue, Sep 23
United Airlines Logo
9:00 am - 6:53 pmEDI-SFO
17h 53m1 stop
United Airlines Logo
6:30 am - 10:35 amSFO-EDI
20h 05m1 stop
$764United Airlines
Find Deal
Wed, Sep 24 - Tue, Sep 30

Delta flights from United Kingdom to San Francisco

Our best Delta deals on United Kingdom to San Francisco flight tickets
Delta
Aug 14
LHR6:30 amLondon Heathrow
13h 15m
1 stop
SFO11:45 amSan Francisco
Dec 8
SFO8:55 amSan Francisco
18h 00m
1 stop
LHR10:55 amLondon Heathrow
$663
Find similar
Delta
Aug 14
LHR9:55 amLondon Heathrow
21h 48m
2 stops
SFO11:43 pmSan Francisco
Nov 17
SFO11:30 amSan Francisco
13h 50m
1 stop
LHR9:20 amLondon Heathrow
$669
Find similar
Delta
Aug 14
LHR6:30 amLondon Heathrow
13h 15m
1 stop
SFO11:45 amSan Francisco
Oct 8
SFO4:05 pmSan Francisco
10h 20m
LHR10:25 amLondon Heathrow
$674
Find similar

Air France flights from United Kingdom to San Francisco

Our best Air France deals on United Kingdom to San Francisco flight tickets
Air France
Oct 22
EDI2:05 pmEdinburgh Turnhouse
17h 18m
1 stop
SFO11:23 pmSan Francisco
Nov 1
SFO4:00 pmSan Francisco
34h 45m
1 stop
EDI9:45 amEdinburgh Turnhouse
$835
Find similar
Air France
Nov 14
LBA6:10 amLeeds/Bradford
13h 40m
1 stop
SFO11:50 amSan Francisco
Nov 30
SFO3:50 pmSan Francisco
16h 55m
2 stops
LBA4:45 pmLeeds/Bradford
$887
Find similar
Air France
Aug 11
EDI10:00 amEdinburgh Turnhouse
16h 52m
1 stop
SFO6:52 pmSan Francisco
Aug 21
SFO5:50 amSan Francisco
16h 55m
2 stops
EDI6:45 amEdinburgh Turnhouse
$901
Find similar

momondo Fare Finder

 
Customize 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 832,500 searches. Data last updated August 4, 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

Sat 9/6

8:50 am-3:55 pm

1 stop15h 05m

San Francisco

Sat 9/20

5:40 pm-2:55 pm

1 stop13h 15m

$450

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Sat 9/6

8:50 am-3:55 pm

1 stop15h 05m

San Francisco

Sat 9/20

5:40 pm-2:55 pm

1 stop13h 15m

$455

LondonSan Francisco

LGW - SFO

LGWSFO

London Gatwick

Tue 9/16

3:05 pm-11:26 am

1 stop28h 21m

San Francisco

Tue 9/23

6:10 am-8:10 am

1 stop18h 00m

$546

LondonSan Francisco

LGW - SFO

LGWSFO

London Gatwick

Fri 9/5

3:05 pm-11:26 am

1 stop28h 21m

San Francisco

Mon 9/8

10:43 pm-8:10 am

1 stop25h 27m

$557

LondonSan Francisco

LCY - SFO

LCYSFO

London City

Mon 9/22

8:45 am-4:00 pm

1 stop15h 15m

San Francisco

Sun 10/5

7:25 pm-6:35 pm

1 stop15h 10m

$586

LondonSan Francisco

LCY - SFO

LCYSFO

London City

Mon 9/22

8:45 am-4:00 pm

1 stop15h 15m

San Francisco

Sun 10/5

7:25 pm-6:35 pm

1 stop15h 10m

$588

Newcastle upon TyneSan Francisco

NCL - SFO

NCLSFO

Newcastle upon Tyne

Wed 10/29

6:00 am-12:50 pm

1 stop13h 50m

San Francisco

Wed 11/12

7:00 am-10:20 am

2 stops19h 20m

$724

Newcastle upon TyneSan Francisco

NCL - SFO

NCLSFO

Newcastle upon Tyne

Wed 9/17

6:00 am-11:45 am

1 stop13h 45m

San Francisco

Wed 9/24

5:55 am-11:50 am

2 stops21h 55m

$727

EdinburghSan Francisco

EDI - SFO

EDISFO

Edinburgh Turnhouse

Tue 9/16

1:50 pm-11:31 pm

1 stop17h 41m

San Francisco

Tue 9/23

11:50 am-11:40 am

1 stop15h 50m

$758

EdinburghSan Francisco

EDI - SFO

EDISFO

Edinburgh Turnhouse

Wed 9/24

9:00 am-6:53 pm

1 stop17h 53m

San Francisco

Tue 9/30

6:30 am-10:35 am

1 stop20h 05m

$764

Flights are sorted by cheapest round-trip 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?

If you aren’t able to travel to San Francisco during the month of February, then flying in November is also cheap. Prices for this month can be found on momondo for an average of $585.

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

The cheapest day to depart from United Kingdom to San Francisco is on a Thursday when prices can be found for as low as $631. The most expensive day to fly to San Francisco is Sunday, with ticket prices averaging around $755.

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

Our data shows that the cheapest United Kingdom to San Francisco flights are usually those with departure times in the evening. Our users have found flights to San Francisco in the evening for as low as $682. Flights in the morning are often more expensive with an average ticket price of $720.

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 $679 when searching weeks out. 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 $623 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 16% 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

$318

Fastest flight time

13h 25m

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 $318. The best round-trip flight deal from United Kingdom to San Francisco found on momondo in the last 72 hours is $450.
The fastest flight from United Kingdom to San Francisco takes 13h 25m
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 were last updated today.

  • 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 required travel and health documents for your San Francisco Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at San Francisco Airport. We recommend that you seek guidance from your airline or a reliable 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
British AirwaysPriceFrom $511Free CancellationRating
6.6
7,235 reviews
Search British Airways flights
United AirlinesPriceFrom $543Free CancellationRating
7.4
8,912 reviews
Search United Airlines flights
Brussels AirlinesPriceFrom $546Free CancellationRating
7.2
350 reviews
Search Brussels Airlines flights
Virgin AtlanticPriceFrom $553Free CancellationRating
7.4
655 reviews
Search Virgin Atlantic flights
DeltaPriceFrom $555Free CancellationRating
8.0
7,987 reviews
Search Delta flights
Austrian AirlinesPriceFrom $564Free CancellationRating
7.6
823 reviews
Search Austrian Airlines flights
Scandinavian AirlinesPriceFrom $577Free CancellationRating
7.3
1,461 reviews
Search Scandinavian Airlines flights
LufthansaPriceFrom $579Free CancellationRating
6.8
7,285 reviews
Search Lufthansa flights
American AirlinesPriceFrom $594Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
IberiaPriceFrom $596Free CancellationRating
7.0
2,865 reviews
Search Iberia flights

Traveling to a place near San Francisco?

Book flights to San Francisco if you plan to visit one of these locations
Santa Cruz
Carmel-by-the-Sea
Modesto
Calistoga
Hayward
Sonoma
Bodega Bay
Roseville
Santa Clara
Big Sur
Daly City
Berkeley
Fremont
Walnut Creek
Half Moon Bay
South San Francisco
Vallejo
Redwood City
Sunnyvale
Pacific Grove

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from United Kingdom to San Francisco for you.

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

Yes. momondo allows you to filter the results for United Kingdom to San Francisco flights to just show those with flexible booking policies.

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

Once you have performed a search for United Kingdom to San Francisco flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

If you are simply researching potential flights to San Francisco, momondo offers a useful price alert feature which will track prices for flights to San Francisco from United Kingdom and alert you when they change.

An easier way to manage your San Francisco trip

We make it super easy to schedule, organize 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
Sat 8/9
Sat 8/16
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States