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Cheap flights from San Francisco to the United Kingdom from £156

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 3/5. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — LHR
11 Jan — 18 Jan1
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 12 December 2025.

Mon 29/1213:55SFO - LHR
1 stop22h 55mVirgin Atlantic
Tue 13/110:00LHR - SFO
1 stop33h 50mVirgin Atlantic
Deal found 11/12£445
Mon 29/1216:35SFO - LGW
1 stop33h 15mTAP AIR PORTUGAL
Tue 13/116:35LGW - SFO
1 stop29h 55mTAP AIR PORTUGAL
Deal found 11/12£446
Mon 29/1216:15SFO - LHR
1 stop30h 15mMultiple Airlines
Tue 13/113:45LHR - SFO
1 stop34h 45mMultiple Airlines
Deal found 12/12£447
Wed 31/1208:25SFO - LHR
1 stop13h 30mAustrian Airlines
Fri 9/108:00LHR - SFO
1 stop19h 55mAustrian Airlines
Deal found 11/12£450
Tue 30/1216:10SFO - LHR
1 stop13h 20mMultiple Airlines
Fri 9/108:00LHR - SFO
1 stop19h 55mMultiple Airlines
Deal found 11/12£450
Wed 10/1212:50SFO - LHR
Nonstop10h 35mUnited Airlines
Thu 25/1206:35LHR - SFO
1 stop16h 15mUnited Airlines
Deal found 10/12£451
Wed 31/1219:25SFO - LCY
1 stop13h 40mSWISS
Thu 15/109:15LCY - SFO
1 stop15h 15mSWISS
Deal found 10/12£452
Tue 30/1217:25SFO - LHR
Nonstop10h 35mUnited Airlines
Tue 13/111:10LHR - SFO
1 stop16h 25mUnited Airlines
Deal found 11/12£452
Wed 10/1216:30SFO - LHR
Nonstop10h 10mDelta
Wed 24/1211:45LHR - SFO
1 stop32h 05mDelta
Deal found 10/12£453
Tue 30/1208:25SFO - LHR
1 stop14h 45mUnited Airlines
Mon 12/113:45LHR - SFO
1 stop34h 45mUnited Airlines
Deal found 11/12£454
Tue 9/1200:43SFO - LHR
2 stops21h 57mUnited Airlines
Thu 22/106:35LHR - SFO
1 stop16h 15mUnited Airlines
Deal found 9/12£456
Tue 9/1219:25SFO - LGW
1 stop14h 25mSWISS
Mon 26/118:40LGW - SFO
1 stop29h 50mSWISS
Deal found 9/12£456

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 12 December 2025.

Round-trip from

£426

One-way from

£156

Popular in

June

Cheapest in

September

Average price

£659

Good round-trip deal

£477 or less

Good one-way deal

£287 or less
Scandinavian Airlines
  • Scandinavian Airlines
  • 7/5-10/5
  • 3 total stops
  • 85h 00m total
  • San Francisco to United Kingdom
Search Deals
British Airways
  • British Airways
  • 3/5
  • 1 total stop
  • 16h 05m total
  • San Francisco to United Kingdom
Search Deals
Highest demand for flights based on searches. 16% potential increase in price (£85 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£15 potential savings vs. average return price).
Search Deals
Average for round-trip flights in December 2025
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 12 December 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 19/2

07:00-09:30

2 stops18h 30m

Manchester

Sat 28/2

12:55-14:35

2 stops33h 40m

£437

San FranciscoManchester

SFO - MAN

SFOMAN

San Francisco

Wed 11/2

16:03-18:35

2 stops18h 32m

Manchester

Fri 20/2

20:55-14:35

2 stops25h 40m

£437

San FranciscoLondon

SFO - STN

SFOSTN

San Francisco

Fri 23/1

08:30-20:00

2 stops27h 30m

London Stansted

Mon 26/1

18:45-12:40

2 stops25h 55m

£447

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Sat 17/1

13:00-17:40

2 stops20h 40m

London Heathrow

Tue 27/1

19:30-23:04

2 stops35h 34m

£449

San FranciscoLondon

SFO - LGW

SFOLGW

San Francisco

Sat 14/3

17:35-09:50

1 stop33h 15m

London Gatwick

Sat 21/3

10:10-15:35

2 stops60h 25m

£451

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Wed 31/12

13:20-11:50

1 stop14h 30m

London Heathrow

Tue 27/1

06:35-14:50

1 stop16h 15m

£452

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Fri 16/1

17:25-12:00

Nonstop10h 35m

London Heathrow

Fri 30/1

06:35-19:35

1 stop21h 00m

£458

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Fri 9/1

17:25-12:00

Nonstop10h 35m

London Heathrow

Wed 28/1

12:05-16:30

1 stop36h 25m

£458

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Mon 16/3

18:25-12:00

Nonstop10h 35m

London Heathrow

Wed 25/3

09:00-17:30

1 stop15h 30m

£458

San FranciscoLondon

SFO - LHR

SFOLHR

San Francisco

Thu 12/2

16:30-10:40

Nonstop10h 10m

London Heathrow

Mon 23/2

06:30-11:50

1 stop13h 20m

£459

Flights are sorted by cheapest return flights first.

Deals found on 12/12

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 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

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 £371). Flying from San Francisco to United Kingdom in June is currently the most expensive (average of £607). 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 12 December 2025.

It’s optimal to fly from San Francisco to United Kingdom in the afternoon. By choosing this option you can save up to 23% 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 16 December 2024.

Travellers seeking maximum savings on their San Francisco to United Kingdom flight should consider departing on Wednesday afternoons when fares are most often at their lowest. Monday 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 12 December 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 past 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 12 December 2025.
See what other customers who have flown with Virgin Atlantic, United Airlines, andIberia 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.
Virgin Atlantic
7.5
Good
675 reviews
Check prices

Boarding

7.7

Entertainment

7.5

Comfort

7.3

Crew

8.2

Overall

7.5

Food

6.9

Reviews

1 / 20
6.0
Good

Pratap,Aug 2025

JFK - LHR

The flight is clean, food good and the staff are excellent! Very professional, polite and accommodating. The seat itself is really mediocre. Can’t believe there is not inch of storage space. Believe it or not it there is not place even to put away your phone or pen!! Very very surprising and terribly inconvenient. No coat hanger hook either. Had to give it away. ALL IN ALL VERY INCONVENIENT business class seat compared to their peers. What is even more surprising is that this on their relatively new fleet of Airbus A350-1000. I was having com platelets different expectations of Virgin and this has disappointed me. Everything else is just as good and as you would expect from Virgin!
Virgin Atlantic
7.5
Good
675 reviews
Virgin Atlantic
7.5
Good
675 reviews
Check prices

Boarding

7.7

Entertainment

7.5

Comfort

7.3

Crew

8.2

Overall

7.5

Food

6.9

Reviews

1 / 20
6.0
Good

Pratap,Aug 2025

JFK - LHR

The flight is clean, food good and the staff are excellent! Very professional, polite and accommodating. The seat itself is really mediocre. Can’t believe there is not inch of storage space. Believe it or not it there is not place even to put away your phone or pen!! Very very surprising and terribly inconvenient. No coat hanger hook either. Had to give it away. ALL IN ALL VERY INCONVENIENT business class seat compared to their peers. What is even more surprising is that this on their relatively new fleet of Airbus A350-1000. I was having com platelets different expectations of Virgin and this has disappointed me. Everything else is just as good and as you would expect from Virgin!
United Airlines
7.4
Good
9,095 reviews
Virgin Atlantic
7.5
Good
675 reviews
Check prices

Boarding

7.7

Entertainment

7.5

Comfort

7.3

Crew

8.2

Overall

7.5

Food

6.9

Reviews

1 / 20
6.0
Good

Pratap,Aug 2025

JFK - LHR

The flight is clean, food good and the staff are excellent! Very professional, polite and accommodating. The seat itself is really mediocre. Can’t believe there is not inch of storage space. Believe it or not it there is not place even to put away your phone or pen!! Very very surprising and terribly inconvenient. No coat hanger hook either. Had to give it away. ALL IN ALL VERY INCONVENIENT business class seat compared to their peers. What is even more surprising is that this on their relatively new fleet of Airbus A350-1000. I was having com platelets different expectations of Virgin and this has disappointed me. Everything else is just as good and as you would expect from Virgin!
Iberia
7.0
Good
3,045 reviews
Virgin Atlantic
7.5
Good
675 reviews
Check prices

Boarding

7.7

Entertainment

7.5

Comfort

7.3

Crew

8.2

Overall

7.5

Food

6.9

Reviews

1 / 20
6.0
Good

Pratap,Aug 2025

JFK - LHR

The flight is clean, food good and the staff are excellent! Very professional, polite and accommodating. The seat itself is really mediocre. Can’t believe there is not inch of storage space. Believe it or not it there is not place even to put away your phone or pen!! Very very surprising and terribly inconvenient. No coat hanger hook either. Had to give it away. ALL IN ALL VERY INCONVENIENT business class seat compared to their peers. What is even more surprising is that this on their relatively new fleet of Airbus A350-1000. I was having com platelets different expectations of Virgin and this has disappointed me. Everything else is just as good and as you would expect from Virgin!
Lufthansa
6.8
Okay
7,626 reviews
Virgin Atlantic
7.5
Good
675 reviews
Check prices

Boarding

7.7

Entertainment

7.5

Comfort

7.3

Crew

8.2

Overall

7.5

Food

6.9

Reviews

1 / 20
6.0
Good

Pratap,Aug 2025

JFK - LHR

The flight is clean, food good and the staff are excellent! Very professional, polite and accommodating. The seat itself is really mediocre. Can’t believe there is not inch of storage space. Believe it or not it there is not place even to put away your phone or pen!! Very very surprising and terribly inconvenient. No coat hanger hook either. Had to give it away. ALL IN ALL VERY INCONVENIENT business class seat compared to their peers. What is even more surprising is that this on their relatively new fleet of Airbus A350-1000. I was having com platelets different expectations of Virgin and this has disappointed me. Everything else is just as good and as you would expect from Virgin!
British Airways
6.7
Okay
7,571 reviews
Virgin Atlantic
7.5
Good
675 reviews
Check prices

Boarding

7.7

Entertainment

7.5

Comfort

7.3

Crew

8.2

Overall

7.5

Food

6.9

Reviews

1 / 20
6.0
Good

Pratap,Aug 2025

JFK - LHR

The flight is clean, food good and the staff are excellent! Very professional, polite and accommodating. The seat itself is really mediocre. Can’t believe there is not inch of storage space. Believe it or not it there is not place even to put away your phone or pen!! Very very surprising and terribly inconvenient. No coat hanger hook either. Had to give it away. ALL IN ALL VERY INCONVENIENT business class seat compared to their peers. What is even more surprising is that this on their relatively new fleet of Airbus A350-1000. I was having com platelets different expectations of Virgin and this has disappointed me. Everything else is just as good and as you would expect from Virgin!

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 11.8 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 14h 30m. Fly via Scandinavian Airlines, TAP AIR PORTUGAL, or United Airlines 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 WestJet, which is currently one of the cheapest options available, starting at £169. British Airways flights start at £183 while deals on Scandinavian Airlines start at £197 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 (90%), Aer Lingus (90%) or Alaska Airlines (90%) 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 £1,275 for a flight from San Francisco to United Kingdom. The cheapest flight overall is £183 while the most popular route, (San Francisco - London Heathrow) is currently priced at £316.

  • 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, October is the cheapest month in which you can book a flight from San Francisco to United Kingdom (average of £371). Flying from San Francisco to United Kingdom in June is currently the most expensive (average of £607). 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

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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.
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Top 8 airlines flying from San Francisco to United Kingdom

Discover the top 8 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 12 December 2025.
AirlineCheapestAverageFlexibilityOn-time
Scandinavian AirlinesCheapest£356Average£449FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
KLMCheapest£365Average£504FlexibilityNo cancel feeOn-time75%
Search KLM flights
Virgin AtlanticCheapest£369Average£600FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
British AirwaysCheapest£387Average£635FlexibilityNo cancel feeOn-time70%
Search British Airways flights
LufthansaCheapest£414Average£661FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
United AirlinesCheapest£418Average£604FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
IberiaCheapest£426Average£517FlexibilityNo cancel feeOn-time77%
Search Iberia flights
Aer LingusCheapest£504Average£665FlexibilityNo 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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