Find flights
Deals
When to book
Airlines
FAQs

Cheap flights from the United Kingdom to San Francisco from £299

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 9/5. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — SFO
3 May — 10 May1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from United Kingdom to San Francisco

Enter your travel dates to find the best prices.

Cheapest flights from United Kingdom to San Francisco
Explore the most affordable flight options available from United Kingdom to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 3 April 2026.

Fri 25/906:40
LHR
-
SFO
1 stop16h 00m
Scandinavian Airlines
Sun 27/916:45
SFO
-
LHR
1 stop17h 45m
Scandinavian Airlines
Deal found 1/4£406
Tue 14/406:55
LHR
-
SFO
1 stop15h 35m
Lufthansa
Tue 21/412:50
SFO
-
LHR
Nonstop10h 35m
Lufthansa
Deal found 29/3£420
Mon 1/606:55
LHR
-
SFO
1 stop15h 25m
Multiple Airlines
Mon 8/613:35
SFO
-
LHR
1 stop14h 15m
Multiple Airlines
Deal found 29/3£426
Mon 25/506:30
LHR
-
SFO
1 stop16h 45m
Multiple Airlines
Tue 16/613:35
SFO
-
LHR
1 stop14h 15m
Multiple Airlines
Deal found 29/3£427
Tue 14/409:15
LCY
-
SFO
1 stop14h 10m
Multiple Airlines
Mon 27/419:35
SFO
-
LCY
1 stop13h 55m
Multiple Airlines
Deal found 29/3£436
Thu 25/610:45
LHR
-
SFO
Nonstop11h 05m
British Airways
Sun 12/716:35
SFO
-
LHR
Nonstop10h 25m
British Airways
Deal found 31/3£440
Wed 8/716:40
LHR
-
SFO
1 stop16h 35m
Lufthansa
Wed 29/713:05
SFO
-
LHR
Nonstop10h 20m
Lufthansa
Deal found 30/3£449
Fri 17/407:25
LHR
-
SFO
1 stop15h 05m
Lufthansa
Tue 21/419:30
SFO
-
LHR
Nonstop10h 40m
Lufthansa
Deal found 29/3£450
Mon 20/407:25
LHR
-
SFO
1 stop15h 05m
Lufthansa
Mon 4/519:30
SFO
-
LHR
Nonstop10h 40m
Lufthansa
Deal found 29/3£451
Wed 29/408:40
LHR
-
SFO
1 stop15h 35m
United Airlines
Wed 6/512:00
SFO
-
LHR
1 stop13h 40m
United Airlines
Deal found 30/3£452
Wed 15/418:20
STN
-
SFO
1 stop31h 35m
Multiple Airlines
Sun 19/419:40
SFO
-
STN
1 stop30h 55m
Multiple Airlines
Deal found 30/3£455
Mon 20/407:25
LHR
-
SFO
1 stop15h 05m
United Airlines
Mon 27/423:05
SFO
-
LHR
1 stop14h 20m
United Airlines
Deal found 29/3£455

Find flight deals from United Kingdom to San Francisco

Keep the following information in mind while searching for United Kingdom to San Francisco flight deals. Data was last updated 3 April 2026.

Round-trip from

£406

One-way from

£299

Popular in

December

Cheapest in

February

Average price

£489

Good round-trip deal

£481 or less

Good one-way deal

£522 or less
Scandinavian Airlines
  • Scandinavian Airlines
  • 25/9-27/9
  • 2 total stops
  • 33h 45m total
  • United Kingdom to San Francisco
Search Deals
9/5
  • 9/5
  • 2 total stops
  • 46h 00m total
  • United Kingdom to San Francisco
Search Deals
Highest demand for flights based on searches. 4% potential increase in price (£20 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£9 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 United Kingdom to San Francisco.
Search Deals
Price to beat on a one-way flight from United Kingdom to San Francisco.
Search Deals

Cheapflights 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, Cheapflights users made 858,174 searches. Data last updated 3 April 2026.
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

Cheapest return flight

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Tue 19/5

10:35-13:40

Nonstop11h 05m

San Francisco

Tue 26/5

13:05-07:25

Nonstop10h 20m

£480

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Fri 12/6

06:55-14:20

1 stop15h 25m

San Francisco

Tue 30/6

05:05-09:00

1 stop19h 55m

£486

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Wed 22/7

14:05-11:21

1 stop29h 16m

San Francisco

Fri 28/8

08:31-12:20

1 stop19h 49m

£513

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Fri 17/4

06:15-12:50

1 stop14h 35m

San Francisco

Fri 24/4

12:37-13:05

1 stop16h 28m

£545

LondonSan Francisco

LGW - SFO

LGWSFO

London Gatwick

Wed 9/9

16:25-14:30

1 stop30h 05m

San Francisco

Tue 15/9

19:20-09:45

2 stops30h 25m

£548

BirminghamSan Francisco

BHX - SFO

BHXSFO

Birmingham

Thu 10/9

19:15-14:40

1 stop27h 25m

San Francisco

Mon 14/9

16:45-18:35

1 stop17h 50m

£554

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Mon 1/6

10:45-13:50

Nonstop11h 05m

San Francisco

Tue 9/6

12:36-10:55

1 stop14h 19m

£555

EdinburghSan Francisco

EDI - SFO

EDISFO

Edinburgh Turnhouse

Wed 23/9

19:10-14:40

1 stop27h 30m

San Francisco

Sun 27/9

16:45-18:25

1 stop17h 40m

£556

LondonSan Francisco

LCY - SFO

LCYSFO

London City

Thu 30/4

08:25-23:37

2 stops23h 12m

San Francisco

Wed 13/5

13:45-17:20

1 stop19h 35m

£556

LondonSan Francisco

LCY - SFO

LCYSFO

London City

Thu 30/4

08:25-23:37

2 stops23h 12m

San Francisco

Thu 7/5

05:50-09:30

2 stops19h 40m

£556

Flights are sorted by cheapest return flights first.

Deals found on 31/3

Showing 1-10 of 60 resultsSorted by cheapest first
1
2
3
...
6

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

Have a flexible travel schedule? Discover the best time to fly to San Francisco from United Kingdom 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 the United Kingdom to San Francisco

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

Currently, April is the cheapest month in which you can book a flight from United Kingdom to San Francisco (average of £169). Flying from United Kingdom to San Francisco in July is currently the most expensive (average of £442). 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 GB to SFO?

Find hourly flight availability from United Kingdom to San Francisco. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 3 April 2026.

When flying from United Kingdom to San Francisco, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from United Kingdom to San Francisco

Explore weekly flight availability from United Kingdom to San Francisco. 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 3 April 2026.

The most flights from GB0 to SFO are scheduled on a Monday (37 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (37 on average).

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

About 11% of weekly flights between United Kingdom and San Francisco have experienced delays in the past year, with the average delay time being 144 minutes.

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

Historically, flights departing in the morning are less likely to be delayed, whereas flights leaving in the evening tend to experience delays more often.

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

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

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

Over the past year, Virgin Atlantic have had the lowest number of delays on this route, with just 10% of flights being delayed.

Reviews of airlines servicing San Francisco

Get insights into the airlines that provide service to San Francisco. 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 San Francisco. Reviews last updated 3 April 2026.
Read reviews from past customers who have flown with Virgin Atlantic,United Airlines, andAer Lingus from the United Kingdom to San Francisco. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Virgin Atlantic
7.5
Good
685 reviews
Check prices

Comfort

7.3

Crew

8.1

Boarding

7.7

Overall

7.5

Food

6.9

Entertainment

7.5

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
685 reviews
Virgin Atlantic
7.5
Good
685 reviews
Check prices

Comfort

7.3

Crew

8.1

Boarding

7.7

Overall

7.5

Food

6.9

Entertainment

7.5

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
9,543 reviews
Virgin Atlantic
7.5
Good
685 reviews
Check prices

Comfort

7.3

Crew

8.1

Boarding

7.7

Overall

7.5

Food

6.9

Entertainment

7.5

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!
Aer Lingus
7.2
Good
1,499 reviews
Virgin Atlantic
7.5
Good
685 reviews
Check prices

Comfort

7.3

Crew

8.1

Boarding

7.7

Overall

7.5

Food

6.9

Entertainment

7.5

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
7,889 reviews
Virgin Atlantic
7.5
Good
685 reviews
Check prices

Comfort

7.3

Crew

8.1

Boarding

7.7

Overall

7.5

Food

6.9

Entertainment

7.5

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
7,848 reviews
Virgin Atlantic
7.5
Good
685 reviews
Check prices

Comfort

7.3

Crew

8.1

Boarding

7.7

Overall

7.5

Food

6.9

Entertainment

7.5

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 United Kingdom to San Francisco. 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 into for flights to San Francisco from United Kingdom?

    If you book a flight to San Francisco from United Kingdom, you will be flying to 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 United Kingdom to San Francisco?

    A quick flight from United Kingdom to San Francisco can take about 11h 05m. Austrian Airlines provides one of the quickest options available for as low as £480. 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 United Kingdom to San Francisco one-way?

    To fly one-way, consider booking your trip with British Airways, which is currently one of the cheapest options available, starting at £212. JetBlue flights start at £248 while deals on Vueling start at £248 one-way.

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

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

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

    The top 3 most reliable airlines when flying from United Kingdom to San Francisco are Air New Zealand (83%), Air Canada (79%) and Austrian Airlines (79%).

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

    On average you can expect to pay £2,057 for a flight from United Kingdom to San Francisco. The cheapest flight overall is £391 while the most popular route, (London Heathrow - San Francisco) is currently priced at £406.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from United Kingdom to San Francisco 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 United Kingdom to San Francisco?

    Currently, April is the cheapest month in which you can book a flight from United Kingdom to San Francisco (average of £169). Flying from United Kingdom to San Francisco in July is currently the most expensive (average of £442). 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

Travelling to a place near San Francisco?

Book flights to San Francisco if you plan to visit one of these locations
Santa Cruz
Newark
San Bruno
Bodega Bay
South San Francisco
Sunnyvale

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.

Alternative routes for United Kingdom to San Francisco

See prices for flight routes from nearby airports that may be better suited for you.
Heathrow to Los Angeles flights
Heathrow to San Francisco flights
Gatwick to Los Angeles flights
Heathrow to Las Vegas flights
Stansted to Los Angeles flights
London City to Los Angeles flights
Heathrow to Ontario flights
Luton to Los Angeles flights
Gatwick to San Francisco flights
London City to San Francisco flights
Stansted to San Francisco flights
Heathrow to Santa Ana flights
Gatwick to Las Vegas flights
Heathrow to San Jose flights
Heathrow to San Diego flights
Heathrow to Long Beach flights
London City to Las Vegas flights
Stansted to Las Vegas flights
Luton to San Francisco flights
Manchester to Las Vegas flights
Manchester to Los Angeles flights
Manchester to San Francisco flights
Heathrow to Burbank flights
Luton to Las Vegas flights
Gatwick to San Diego flights
Birmingham to Los Angeles flights
Birmingham to Las Vegas flights
Gatwick to Ontario flights
Manchester to San Jose flights
Stansted to San Diego flights
Edinburgh to Las Vegas flights
London City to San Diego flights
Manchester to Ontario flights
Southampton to Los Angeles flights
Istanbul to San Francisco flights
Manchester to Long Beach flights
Newcastle upon Tyne to Las Vegas flights
Dublin to Las Vegas flights
Glasgow Intl to Las Vegas flights
Gatwick to San Jose flights
Edinburgh to Los Angeles flights
Heathrow to Oakland flights
Birmingham to San Francisco flights
Newcastle upon Tyne to Los Angeles flights
Gatwick to Burbank flights
Glasgow Intl to San Francisco flights
London City to San Jose flights
Dublin to Los Angeles flights
Gatwick to Santa Ana flights
Heathrow to Reno flights

Top 10 airlines flying from United Kingdom to San Francisco

Discover the top 10 airlines that operate flights from United Kingdom to San Francisco. 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 3 April 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest£326Average£646FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Air CanadaCheapest£340Average£579FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
United AirlinesCheapest£355Average£605FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
SWISSCheapest£357Average£570FlexibilityNo cancel feeOn-time79%
Search SWISS flights
Aer LingusCheapest£358Average£681FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
Scandinavian AirlinesCheapest£364Average£510FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
TAP AIR PORTUGALCheapest£365Average£471FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
Brussels AirlinesCheapest£378Average£510FlexibilityNo cancel feeOn-timeN/A
Search Brussels Airlines flights
FinnairCheapest£379Average£523FlexibilityNo cancel feeOn-time76%
Search Finnair flights
LufthansaCheapest£381Average£652FlexibilityNo cancel feeOn-time76%
Search Lufthansa 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 United Kingdom to San Francisco?

Cheapflights makes it easy to find United Kingdom to San Francisco flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

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

It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from United Kingdom to San Francisco.

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

Yes, we can. To see specific flights from United Kingdom to San Francisco with no change fees, users can toggle flexible booking options after using the search form above to find flights.

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

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and provide a valid email address to enable Price Alerts. That’s it!

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.