United Kingdom

$221+ Cheap flights from San Francisco (SFO) to the United Kingdom

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 4/29. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — LHR
Jan 11 — Jan 181
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Cheap flight deals from San Francisco to United Kingdom

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 December 12, 2025.

This Gotogate deal was found by Cheapflights users on 12/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/291:55 pmSFO - LHR
1 stop22h 55mVirgin Atlantic
Tue 1/1310:00 amLHR - SFO
1 stop33h 50mVirgin Atlantic
Deal found 12/11$596
This Travelis deal was found by Cheapflights users on 12/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Travelis is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/294:35 pmSFO - LGW
1 stop33h 15mTAP AIR PORTUGAL
Tue 1/134:35 pmLGW - SFO
1 stop29h 55mTAP AIR PORTUGAL
Deal found 12/11$597
This Kiwi.com deal was found by Cheapflights users on 12/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/318:25 amSFO - LHR
1 stop13h 30mAustrian Airlines
Fri 1/98:00 amLHR - SFO
1 stop19h 55mAustrian Airlines
Deal found 12/11$602
This Kiwi.com deal was found by Cheapflights users on 12/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/304:10 pmSFO - LHR
1 stop13h 20mMultiple Airlines
Fri 1/98:00 amLHR - SFO
1 stop19h 55mMultiple Airlines
Deal found 12/11$603
This United Airlines deal was found by Cheapflights users on 12/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/1012:50 pmSFO - LHR
Nonstop10h 35mUnited Airlines
Thu 12/256:35 amLHR - SFO
1 stop16h 15mUnited Airlines
Deal found 12/10$604
This Cheapflightsfares deal was found by Cheapflights users on 12/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/317:25 pmSFO - LCY
1 stop13h 40mSWISS
Thu 1/159:15 amLCY - SFO
1 stop15h 15mSWISS
Deal found 12/10$605
This United Airlines deal was found by Cheapflights users on 12/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/305:25 pmSFO - LHR
Nonstop10h 35mUnited Airlines
Mon 1/121:45 pmLHR - SFO
1 stop34h 45mUnited Airlines
Deal found 12/11$605
This Delta deal was found by Cheapflights users on 12/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/104:30 pmSFO - LHR
Nonstop10h 10mDelta
Wed 12/2411:45 amLHR - SFO
1 stop32h 05mDelta
Deal found 12/10$606
This FlightHub deal was found by Cheapflights users on 12/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/294:35 pmSFO - LGW
1 stop33h 15mTAP AIR PORTUGAL
Thu 1/154:00 pmLGW - SFO
1 stop32h 05mTAP AIR PORTUGAL
Deal found 12/9$607
This Flighttix deal was found by Cheapflights users on 12/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Flighttix is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/2912:50 pmSFO - LHR
Nonstop10h 35mMultiple Airlines
Tue 1/131:45 pmLHR - SFO
1 stop34h 45mMultiple Airlines
Deal found 12/10$607
This United Airlines deal was found by Cheapflights users on 12/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/912:43 amSFO - LHR
2 stops21h 57mUnited Airlines
Thu 1/226:35 amLHR - SFO
1 stop16h 15mUnited Airlines
Deal found 12/9$610
This KAYAK deal was found by Cheapflights users on 12/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/97:25 pmSFO - LGW
1 stop14h 25mSWISS
Mon 1/266:40 pmLGW - SFO
1 stop29h 50mSWISS
Deal found 12/9$611

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 December 12, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

Gurufare
3 stars

Round-trip from

$570
(Gotogate)

One-way from

$221
(British Airways)

Popular in

June

Cheapest in

September

Average price

$883

Good round-trip deal

$686 or less

Good one-way deal

$393 or less
Provider with most accurate pricing for San Francisco-London (LON) flight deals.
Provider most trusted by Cheapflights users for San Francisco-London (LON) flights.
From San Francisco to United Kingdom
One-way flight from San Francisco to United Kingdom
Highest demand for flights based on searches. 16% potential increase in price ($153 potential increase over avg. RT price).
Cheapest flight prices on average. 3% potential price decrease ($27 potential savings vs. average RT price).
Average for round-trip flights in December 2025
Price to beat on a round-trip flight from San Francisco to United Kingdom.
Price to beat on a one-way flight from San Francisco to United Kingdom.

Cheapflights Fare Finder

 
Customize 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 2,558,603 searches. Data last updated December 12, 2025.
Use the filters below to find and compare flights from San Francisco to the United Kingdom that are best for you.

Fly from

San Francisco

Fly to

United Kingdom

Route

Depart

Return

Price

San FranciscoManchester

SFO - MAN

SFOMAN

San Francisco

Thu 2/19

7:00 am-9:30 am

2 stops18h 30m

Manchester

Sat 2/28

12:55 pm-2:35 pm

2 stops33h 40m

$585

San FranciscoManchester

SFO - MAN

SFOMAN

San Francisco

Fri 1/23

7:00 am-9:30 am

2 stops18h 30m

Manchester

Fri 1/30

8:55 pm-2:35 pm

2 stops25h 40m

$585

San FranciscoManchester

SFO - MAN

SFOMAN

San Francisco

Wed 2/11

4:03 pm-6:35 pm

2 stops18h 32m

Manchester

Fri 2/20

8:55 pm-2:35 pm

2 stops25h 40m

$585

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Sat 3/14

5:40 pm-6:50 pm

2 stops18h 10m

London Heathrow

Sat 3/21

3:35 pm-3:35 pm

2 stops31h 00m

$598

San FranciscoLondon

SFO - STN

SFOSTN

San Francisco

Fri 1/23

8:30 am-8:00 pm

2 stops27h 30m

London Stansted

Mon 1/26

6:45 pm-12:40 pm

2 stops25h 55m

$599

San FranciscoLondon

SFO - STN

SFOSTN

San Francisco

Fri 3/6

4:40 pm-10:35 pm

3 stops21h 55m

London Stansted

Sat 3/14

12:00 pm-3:35 pm

2 stops34h 35m

$599

San FranciscoLondon

SFO - STN

SFOSTN

San Francisco

Sun 2/22

4:40 pm-10:35 pm

2 stops21h 55m

London Stansted

Sun 3/1

12:00 pm-2:35 pm

2 stops34h 35m

$604

San FranciscoLondon

SFO - STN

SFOSTN

San Francisco

Mon 2/16

8:25 am-2:05 pm

2 stops21h 40m

London Stansted

Mon 2/23

2:25 pm-4:30 pm

2 stops34h 05m

$610

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Wed 2/25

5:25 pm-12:00 pm

Nonstop10h 35m

London Heathrow

Sun 3/1

1:45 pm-4:30 pm

1 stop34h 45m

$613

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Thu 3/12

6:25 pm-12:00 pm

Nonstop10h 35m

London Heathrow

Mon 3/16

11:10 am-8:35 pm

1 stop16h 25m

$613

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/11

Showing 1-10 of 60 results
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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 round-trip 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

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

Currently, October is the cheapest month in which you can book a flight from San Francisco to United Kingdom (average of $497). Flying from San Francisco to United Kingdom in June is currently the most expensive (average of $813). 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 December 12, 2025.

It’s typically best to fly out from San Francisco to United Kingdom in the afternoon. Doing so could potentially save you 21% on the flight price compared to flying in the morning, which is usually more expensive.

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

Use this chart to determine the cheapest time to fly round-trip from San Francisco to United Kingdom. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their San Francisco to United Kingdom flight should consider departing on Tuesday afternoons when fares are most often at their lowest. Thursday mornings 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 December 12, 2025.

The most flights from SFO to GB0 are scheduled on a Tuesday (31 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (26 on average).

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

About 12% of weekly flights between San Francisco and United Kingdom have experienced delays in the past year, with the average delay time being 156 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 last year, Virgin Atlantic 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 December 12, 2025.
Get a feel of what it's like to fly with Delta, Virgin Atlantic, and United Airlines from San Francisco to the United Kingdom by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Crew

8.5

Food

7.3

Comfort

7.9

Entertainment

7.9

Boarding

8.1

Overall

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Crew

8.5

Food

7.3

Comfort

7.9

Entertainment

7.9

Boarding

8.1

Overall

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Crew

8.5

Food

7.3

Comfort

7.9

Entertainment

7.9

Boarding

8.1

Overall

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Crew

8.5

Food

7.3

Comfort

7.9

Entertainment

7.9

Boarding

8.1

Overall

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Crew

8.5

Food

7.3

Comfort

7.9

Entertainment

7.9

Boarding

8.1

Overall

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Crew

8.5

Food

7.3

Comfort

7.9

Entertainment

7.9

Boarding

8.1

Overall

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

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?

    Most people fly from San Francisco (SFO) if they book a flight from San Francisco to United Kingdom. San Francisco is conveniently located just 11.8 mi from San Francisco’s city center.

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

    Departing from San Francisco to United Kingdom will take you 10h 35m. Airlines will cover a distance of 5350 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

    The cheapest airline one-way is JetBlue, with whom users have recently found tickets for as low as $176. However, be on the lookout for offers from Aer Lingus and WestJet, as they are both options that can get you from San Francisco to United Kingdom for a low price.

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

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

    Before booking your flight to United Kingdom from San Francisco, check out the most reliable airlines to get you to your destination on time: American Airlines (90%), Aer Lingus (90%), Alaska Airlines( 90%).

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

    On average you can expect to pay $2,503 for a flight from San Francisco to United Kingdom. The cheapest flight overall is $332 while the most popular route, (San Francisco - London Heathrow) is currently priced at $423.

  • 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 vacation 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, October is the cheapest month in which you can book a flight from San Francisco to United Kingdom (average of $497). Flying from San Francisco to United Kingdom in June is currently the most expensive (average of $813). 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

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Alternative routes for San Francisco to United Kingdom

See prices for flight routes from nearby airports that may be better suited for you.

Top 10 airlines flying from San Francisco to United Kingdom

Discover the top 10 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 2,558,603 searches. Data last updated December 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$151Average$947FlexibilityNo cancel feeOn-time62%
Scandinavian AirlinesCheapest$362Average$690FlexibilityNo cancel feeOn-time77%
TAP AIR PORTUGALCheapest$371Average$556FlexibilityNo cancel feeOn-timeN/A
LufthansaCheapest$459Average$1,037FlexibilityNo cancel feeOn-time76%
Alaska AirlinesCheapest$494Average$655FlexibilityNo cancel feeOn-time75%
SWISSCheapest$513Average$831FlexibilityNo cancel feeOn-time79%
British AirwaysCheapest$514Average$792FlexibilityNo cancel feeOn-time70%
DeltaCheapest$541Average$960FlexibilityNo cancel feeOn-timeN/A
Virgin AtlanticCheapest$569Average$964FlexibilityNo cancel feeOn-time72%
United AirlinesCheapest$571Average$946FlexibilityNo cancel feeOn-time69%

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