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Cheap flights from San Francisco to the United Kingdom from £234

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 13/9. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — LHR
25 May — 1 Jun1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from San Francisco to United Kingdom

Enter your travel dates to find the best prices.

Cheapest flights from San Francisco to United Kingdom
Explore the most affordable flight options available from San Francisco to United Kingdom. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 25 April 2026.

Sun 10/516:45
SFO
-
LHR
1 stop15h 15m
Scandinavian Airlines
Thu 14/506:40
LHR
-
SFO
1 stop16h 00m
Scandinavian Airlines
Deal found 21/4£530
Mon 11/516:45
SFO
-
LHR
1 stop15h 15m
Scandinavian Airlines
Tue 19/506:40
LHR
-
SFO
1 stop16h 00m
Scandinavian Airlines
Deal found 21/4£531
Sun 10/516:45
SFO
-
LHR
1 stop15h 15m
Scandinavian Airlines
Wed 20/506:40
LHR
-
SFO
1 stop16h 00m
Scandinavian Airlines
Deal found 21/4£531
Mon 11/516:45
SFO
-
MAN
3 stops35h 55m
Multiple Airlines
Mon 18/513:55
MAN
-
SFO
2 stops32h 45m
Multiple Airlines
Deal found 21/4£535
Wed 7/1016:45
SFO
-
LHR
1 stop16h 55m
Scandinavian Airlines
Mon 12/1006:40
LHR
-
SFO
1 stop16h 00m
Scandinavian Airlines
Deal found 23/4£536
Tue 15/916:45
SFO
-
LHR
1 stop16h 55m
Scandinavian Airlines
Tue 13/1006:40
LHR
-
SFO
1 stop16h 00m
Scandinavian Airlines
Deal found 24/4£538
Tue 3/1116:40
SFO
-
LHR
1 stop21h 00m
Scandinavian Airlines
Tue 10/1106:40
LHR
-
SFO
1 stop15h 55m
Scandinavian Airlines
Deal found 20/4£539
Sun 10/516:45
SFO
-
LHR
1 stop15h 15m
Scandinavian Airlines
Sat 16/506:40
LHR
-
SFO
1 stop16h 00m
Scandinavian Airlines
Deal found 21/4£539
Mon 17/816:45
SFO
-
LHR
1 stop15h 15m
Scandinavian Airlines
Fri 28/806:40
LHR
-
SFO
1 stop16h 00m
Scandinavian Airlines
Deal found 24/4£540
Fri 21/816:45
SFO
-
LHR
2 stops32h 50m
Scandinavian Airlines
Sun 23/821:05
LHR
-
SFO
2 stops25h 35m
Scandinavian Airlines
Deal found 23/4£544
Sun 10/516:45
SFO
-
STN
2 stops22h 30m
Multiple Airlines
Sat 16/512:45
STN
-
SFO
2 stops33h 55m
Multiple Airlines
Deal found 21/4£548
Sun 10/516:45
SFO
-
STN
2 stops21h 20m
Multiple Airlines
Tue 19/515:10
STN
-
SFO
2 stops31h 30m
Multiple Airlines
Deal found 20/4£551

Find flight deals from San Francisco to United Kingdom

Keep the following information in mind while searching for San Francisco to United Kingdom flight deals. Data was last updated 25 April 2026.

Round-trip from

£530

One-way from

£234

Popular in

June

Cheapest in

February

Average price

£540

Good round-trip deal

£558 or less

Good one-way deal

£349 or less
Scandinavian Airlines
  • Scandinavian Airlines
  • 10/5-14/5
  • 2 total stops
  • 31h 15m total
  • San Francisco to United Kingdom
Search Deals
British Airways
  • British Airways
  • 13/9
  • 2 total stops
  • 19h 14m total
  • San Francisco to United Kingdom
Search Deals
Highest demand for flights based on searches. 19% potential increase in price (£101 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (£17 potential savings vs. average return price).
Search Deals
Average for round-trip flights in April 2026
Search Deals
Price to beat on a round-trip flight from San Francisco to United Kingdom.
Search Deals
Price to beat on a one-way flight from San Francisco to United Kingdom.
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from San Francisco to United Kingdom 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, Cheapflights users made 858,174 searches. Data last updated 25 April 2026.
Use the filters below to find and compare flights from San Francisco to the United Kingdom that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Mon 11/5

23:15-17:30

Nonstop10h 15m

London Heathrow

Thu 21/5

06:30-11:45

1 stop13h 15m

£632

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Mon 11/5

17:55-12:15

Nonstop10h 20m

London Heathrow

Tue 19/5

06:30-11:45

1 stop13h 15m

£632

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Wed 9/9

17:55-12:15

Nonstop10h 20m

London Heathrow

Wed 16/9

06:30-11:45

1 stop13h 15m

£632

San FranciscoGlasgow

SFO - GLA

SFOGLA

San Francisco

Sun 18/10

19:30-18:45

1 stop15h 15m

Glasgow Intl

Mon 26/10

17:45-16:00

1 stop29h 15m

£636

San FranciscoLondon

SFO - LGW

SFOLGW

San Francisco

Mon 11/5

15:05-16:00

1 stop16h 55m

London Gatwick

Thu 21/5

10:25-18:00

1 stop15h 35m

£641

San FranciscoGlasgow

SFO - GLA

SFOGLA

San Francisco

Wed 23/9

16:35-15:35

1 stop15h 00m

Glasgow Intl

Wed 7/10

09:30-20:21

2 stops18h 51m

£644

San FranciscoLondon

SFO - LGW

SFOLGW

San Francisco

Mon 4/5

16:30-18:50

1 stop18h 20m

London Gatwick

Fri 8/5

10:20-21:23

2 stops19h 03m

£645

San FranciscoGlasgow

SFO - GLA

SFOGLA

San Francisco

Tue 8/9

19:30-18:40

1 stop15h 10m

Glasgow Intl

Mon 21/12

15:25-19:44

2 stops36h 19m

£651

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Sat 5/9

17:55-12:15

Nonstop10h 20m

London Heathrow

Thu 1/10

06:30-11:45

1 stop13h 15m

£654

San FranciscoEdinburgh

SFO - EDI

SFOEDI

San Francisco

Wed 7/10

22:45-18:25

2 stops35h 40m

Edinburgh Turnhouse

Sat 17/10

20:25-14:40

2 stops26h 15m

£668

Flights are sorted by cheapest return flights first.

Deals found on 24/4

Showing 1-10 of 60 resultsSorted by cheapest first
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6

Best time to book a flight from San Francisco to United Kingdom

Have a flexible travel schedule? Discover the best time to fly to United Kingdom from San Francisco with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

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

How far ahead should I book a flight from San Francisco to United Kingdom?

The best time to book flights from San Francisco to United Kingdom is 29 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from San Francisco to United Kingdom?

Currently, February is the cheapest month in which you can book a flight from San Francisco to United Kingdom (average of £476). Flying from San Francisco to United Kingdom in June is currently the most expensive (average of £828). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from SFO to GB?

Find hourly flight availability from San Francisco to United Kingdom. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 25 April 2026.

It’s optimal to fly from San Francisco to United Kingdom in the evening. By choosing this option you can save up to 21% on the cost of your flight, compared to a flight at midday.

What is the cheapest day to fly from San Francisco to United Kingdom?

Use this chart to determine the cheapest time to fly return from San Francisco to United Kingdom. Price data was last updated on 18 April 2026.

Travellers seeking maximum savings on their San Francisco to United Kingdom flight should consider departing on Tuesday evenings when fares are most often at their lowest. Friday at midday flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from San Francisco to United Kingdom

Explore weekly flight availability from San Francisco to United Kingdom. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated 25 April 2026.

The most flights from SFO to GB0 are scheduled on a Monday (42 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (42 on average).

How often are flights from San Francisco to the United Kingdom delayed?

About 11% of weekly flights between San Francisco and United Kingdom have experienced delays in the past year, with the average delay time being 155 minutes.

What is the most punctual flight time for San Francisco to the United Kingdom flights?

Historically, flights departing at night are less likely to be delayed, whereas flights leaving in the early afternoon tend to experience delays more often.

What day of the week experiences the fewest flight delays on this route?

Monday tends to have the lowest number of delays on this route, whereas Thursday has historically faced a higher average of delays compared to other days of the week.

Which airline has the best punctuality record on San Francisco to the United Kingdom flights?

Over the past year, British Airways have had the lowest number of delays on this route, with just 9% of flights being delayed.

Reviews of airlines servicing United Kingdom

Get insights into the airlines that provide service to United Kingdom. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to United Kingdom. Reviews last updated 25 April 2026.
See what other customers who have flown with KLM,Virgin Atlantic, andUnited Airlines from San Francisco to the United Kingdom have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
KLM
7.8
Good
1,508 reviews
Check prices

Comfort

7.7

Crew

8.4

Food

7.3

Entertainment

7.1

Overall

7.8

Boarding

7.8

Reviews

1 / 20
2.0
Mediocre

Anonymous,Feb 2026

EZE - SCL

It was a short trip The aeroplane was delay I arrived in Chile late and I lost my fly with Qantas
KLM
7.8
Good
1,508 reviews
KLM
7.8
Good
1,508 reviews
Check prices

Comfort

7.7

Crew

8.4

Food

7.3

Entertainment

7.1

Overall

7.8

Boarding

7.8

Reviews

1 / 20
2.0
Mediocre

Anonymous,Feb 2026

EZE - SCL

It was a short trip The aeroplane was delay I arrived in Chile late and I lost my fly with Qantas
Virgin Atlantic
7.5
Good
687 reviews
KLM
7.8
Good
1,508 reviews
Check prices

Comfort

7.7

Crew

8.4

Food

7.3

Entertainment

7.1

Overall

7.8

Boarding

7.8

Reviews

1 / 20
2.0
Mediocre

Anonymous,Feb 2026

EZE - SCL

It was a short trip The aeroplane was delay I arrived in Chile late and I lost my fly with Qantas
United Airlines
7.4
Good
9,651 reviews
KLM
7.8
Good
1,508 reviews
Check prices

Comfort

7.7

Crew

8.4

Food

7.3

Entertainment

7.1

Overall

7.8

Boarding

7.8

Reviews

1 / 20
2.0
Mediocre

Anonymous,Feb 2026

EZE - SCL

It was a short trip The aeroplane was delay I arrived in Chile late and I lost my fly with Qantas
Lufthansa
6.8
Okay
7,948 reviews
KLM
7.8
Good
1,508 reviews
Check prices

Comfort

7.7

Crew

8.4

Food

7.3

Entertainment

7.1

Overall

7.8

Boarding

7.8

Reviews

1 / 20
2.0
Mediocre

Anonymous,Feb 2026

EZE - SCL

It was a short trip The aeroplane was delay I arrived in Chile late and I lost my fly with Qantas
British Airways
6.7
Okay
7,912 reviews
KLM
7.8
Good
1,508 reviews
Check prices

Comfort

7.7

Crew

8.4

Food

7.3

Entertainment

7.1

Overall

7.8

Boarding

7.8

Reviews

1 / 20
2.0
Mediocre

Anonymous,Feb 2026

EZE - SCL

It was a short trip The aeroplane was delay I arrived in Chile late and I lost my fly with Qantas

Related info for your journey

Find useful and relevant information for your journey from San Francisco to United Kingdom. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from San Francisco to United Kingdom?

    If you book a flight to United Kingdom from San Francisco, you will be flying from San Francisco, which is the city’s only airport. San Francisco (SFO) is located 11.0 mi from the center of San Francisco.

  • How long is the flight from San Francisco to United Kingdom?

    There are many flights that can get you from San Francisco to United Kingdom in 10h 15m. Fly via KLM, Delta, or British Airways to get the fastest option. Airlines will cover a distance of 5350 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • What are the cheapest airlines to fly from San Francisco to United Kingdom one-way?

    To fly one-way, consider booking your trip with Lufthansa, which is currently one of the cheapest options available, starting at £170. British Airways flights start at £173 while deals on Virgin Atlantic start at £173 one-way.

  • What are the most popular routes from San Francisco to United Kingdom?

    Most travelers choose San Francisco - London Heathrow, San Francisco - London Gatwick or San Francisco - London City when deciding on the best route from San Francisco to United Kingdom.

  • What are the most reliable airlines from San Francisco to United Kingdom?

    Consider American Airlines (91%), Alaska Airlines (91%) or British Airways (91%) when booking your flight. These represent the most reliable airlines when flying from San Francisco to United Kingdom.

  • What are the cheapest flights from San Francisco to United Kingdom?

    On average you can expect to pay £1,358 for a flight from San Francisco to United Kingdom. The cheapest flight overall is £324 while the most popular route, (San Francisco - London Heathrow) is currently priced at £497.

  • Can I find deals for flights from San Francisco to United Kingdom that include hotel bookings?

    Yes. In addition to deals on San Francisco to United Kingdom flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from San Francisco to United Kingdom?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from San Francisco to United Kingdom.

  • Can I find deals for business class flights from San Francisco to United Kingdom?

    Yes. Cheapflights offers flight deals from San Francisco to United Kingdom by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from San Francisco to United Kingdom?

    Currently, February is the cheapest month in which you can book a flight from San Francisco to United Kingdom (average of £476). Flying from San Francisco to United Kingdom in June is currently the most expensive (average of £828). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 6 airlines flying from San Francisco to United Kingdom

Discover the top 6 airlines that operate flights from San Francisco to United Kingdom. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 25 April 2026.
AirlineCheapestAverageFlexibilityOn-time
Virgin AtlanticCheapest£366Average£587FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
KLMCheapest£368Average£685FlexibilityNo cancel feeOn-time75%
Search KLM flights
LufthansaCheapest£370Average£654FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
British AirwaysCheapest£384Average£666FlexibilityNo cancel feeOn-time70%
Search British Airways flights
United AirlinesCheapest£393Average£575FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
Aer LingusCheapest£534Average£669FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from San Francisco to United Kingdom?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to United Kingdom from San Francisco today with Cheapflights!

Why should you use Cheapflights to find cheap flight tickets from San Francisco to United Kingdom?

Cheapflights helps you find that perfect flight to United Kingdom from San Francisco by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights from San Francisco to United Kingdom with no change fees?

Certainly. Search results for flights to United Kingdom from San Francisco shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from San Francisco to United Kingdom become cheaper?

Of course! You can now track prices for flights from San Francisco to United Kingdom and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals above to set up your price alerts.

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