Cheap flights from the United Kingdom to San Francisco from £306

LHR — SFO
9 Dec — 16 Dec1
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

Mon 23/1106:40 -
1 stop16h 10m
Sun 29/1116:45 -
1 stop17h 45m
Deal found 6/11£398
Sat 21/1114:45 -
1 stop13h 58m
Wed 2/1212:39 -
1 stop15h 41m
Deal found 5/11£408
Thu 19/1114:45 -
1 stop16h 00m
Thu 3/1212:39 -
1 stop15h 41m
Deal found 5/11£410
Thu 10/1214:45 -
1 stop14h 07m
Sun 10/119:16 -
1 stop33h 04m
Deal found 9/11£423
Fri 4/1214:45 -
1 stop15h 03m
Mon 7/1219:05 -
1 stop33h 15m
Deal found 7/11£424
Thu 12/1114:45 -
1 stop26h 56m
Tue 17/1110:39 -
1 stop17h 41m
Deal found 4/11£425
Sat 21/1114:45 -
1 stop16h 01m
Tue 1/1207:00 -
1 stop21h 20m
Deal found 5/11£427
Thu 10/1214:45 -
1 stop26h 53m
Thu 24/1210:35 -
1 stop17h 45m
Deal found 7/11£427
Wed 9/1214:45 -
1 stop15h 03m
Wed 13/114:07 -
1 stop14h 13m
Deal found 8/11£428
Tue 17/1114:45 -
1 stop14h 02m
Thu 26/1106:00 -
1 stop22h 20m
Deal found 8/11£429
Mon 23/1114:45 -
1 stop16h 01m
Sat 5/1212:39 -
1 stop15h 41m
Deal found 7/11£430
Mon 16/1114:45 -
1 stop14h 58m
Wed 2/1212:39 -
1 stop15h 41m
Deal found 4/11£430

Find flight deals from United Kingdom to San Francisco

Round-trip from

£398

One-way from

£306

Popular in

July

Cheapest in

February

Average price

£509

Good round-trip deal

£543 or less

Good one-way deal

£564 or less
Scandinavian Airlines
  • Scandinavian Airlines
  • 23/11-29/11
  • 2 total stops
  • 33h 55m total
  • United Kingdom to San Francisco
18/4-31/12
  • 18/4-31/12
  • 2 total stops
  • 57h 29m total
  • United Kingdom to San Francisco
Highest demand for flights based on searches. 11% potential increase in price (£51 potential increase over avg. return price).
Cheapest flight prices on average. 1% potential price decrease (£6 potential savings vs. average return price).
Average for round-trip flights in November 2026
Price to beat on a round-trip flight from United Kingdom to San Francisco.
Price to beat on a one-way flight from United Kingdom to San Francisco.

Cheapflights Fare Finder

 
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

GlasgowSan Francisco

GLA Glasgow Intl - SFO San Francisco

GLASFO

Glasgow Intl

Sun 18/4

11:20-12:49

2 stops57h 29m

San Francisco

Wed 31/12

00:00-09:00

Nonstop0h 00m

£306

BirminghamSan Francisco

BHX Birmingham - SFO San Francisco

BHXSFO

Birmingham

Sun 6/12

17:40-14:25

2 stops28h 45m

San Francisco

Wed 31/12

00:00-09:00

Nonstop0h 00m

£312

GlasgowSan Francisco

GLA Glasgow Intl - SFO San Francisco

GLASFO

Glasgow Intl

Mon 3/5

15:55-12:00

2 stops52h 05m

San Francisco

Wed 31/12

00:00-09:00

Nonstop0h 00m

£340

ManchesterSan Francisco

MAN Manchester - SFO San Francisco

MANSFO

Manchester

Fri 19/2

05:50-12:55

3 stops39h 05m

San Francisco

Wed 31/12

00:00-09:00

Nonstop0h 00m

£344

BirminghamSan Francisco

BHX Birmingham - SFO San Francisco

BHXSFO

Birmingham

Sat 5/12

17:15-14:25

2 stops53h 10m

San Francisco

Wed 31/12

00:00-09:00

Nonstop0h 00m

£344

GlasgowSan Francisco

GLA Glasgow Intl - SFO San Francisco

GLASFO

Glasgow Intl

Tue 17/11

09:05-14:45

3 stops37h 40m

San Francisco

Wed 31/12

00:00-09:00

Nonstop0h 00m

£379

LondonSan Francisco

LGW London Gatwick - SFO San Francisco

LGWSFO

London Gatwick

Sun 11/4

21:15-14:35

2 stops49h 20m

San Francisco

Wed 31/12

00:00-09:00

Nonstop0h 00m

£394

LondonSan Francisco

LGW London Gatwick - SFO San Francisco

LGWSFO

London Gatwick

Fri 22/1

09:00-16:30

1 stop15h 30m

San Francisco

Wed 31/12

00:00-09:00

Nonstop0h 00m

£395

LondonSan Francisco

LGW London Gatwick - SFO San Francisco

LGWSFO

London Gatwick

Thu 3/12

10:10-14:45

2 stops60h 35m

San Francisco

Wed 31/12

00:00-09:00

Nonstop0h 00m

£420

LondonSan Francisco

LGW London Gatwick - SFO San Francisco

LGWSFO

London Gatwick

Wed 27/1

19:30-16:30

2 stops29h 00m

San Francisco

Wed 31/12

00:00-09:00

Nonstop0h 00m

£426

Flights are sorted by cheapest return flights first.

Deals found on 7/11

Showing 1-10 of 60 resultsSorted by cheapest first
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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

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, February is the cheapest month in which you can book a flight from United Kingdom to San Francisco (average of £475). Flying from United Kingdom to San Francisco in December is currently the most expensive (average of £645). 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?

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

The most flights from GB0 to SFO are scheduled on a Monday (32 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (32 on average).

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

About 13% 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?

Friday 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, United Airlines have had the lowest number of delays on this route, with just 11% of flights being delayed.

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

Booking 22 days in advance of your planned departure date is, on average, the best time to get cheap flights from United Kingdom to San Francisco. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

Reviews of airlines servicing San Francisco

Read reviews from past customers who have flown with Virgin Atlantic,Aer Lingus, andUnited Airlines 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.

Food

6.9

Crew

8.1

Entertainment

7.5

Boarding

7.7

Overall

7.5

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Edwin,May 2026

LHR - LAX

First time flying with Virgin. It was everything I hoped it would be.

Food

6.9

Crew

8.1

Entertainment

7.5

Boarding

7.7

Overall

7.5

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Edwin,May 2026

LHR - LAX

First time flying with Virgin. It was everything I hoped it would be.

Food

6.9

Crew

8.1

Entertainment

7.5

Boarding

7.7

Overall

7.5

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Edwin,May 2026

LHR - LAX

First time flying with Virgin. It was everything I hoped it would be.

Food

6.9

Crew

8.1

Entertainment

7.5

Boarding

7.7

Overall

7.5

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Edwin,May 2026

LHR - LAX

First time flying with Virgin. It was everything I hoped it would be.

Food

6.9

Crew

8.1

Entertainment

7.5

Boarding

7.7

Overall

7.5

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Edwin,May 2026

LHR - LAX

First time flying with Virgin. It was everything I hoped it would be.

Food

6.9

Crew

8.1

Entertainment

7.5

Boarding

7.7

Overall

7.5

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Edwin,May 2026

LHR - LAX

First time flying with Virgin. It was everything I hoped it would be.

Related info for your journey

  • 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 13h 15m. Alaska Airlines provides one of the quickest options available for as low as £524. 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 £210. Virgin Atlantic flights start at £244 while deals on Alaska Airlines start at £259 one-way.

  • What are the most popular routes 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 Canada (79%), Austrian Airlines (79%) and United Airlines (79%).

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

    On average you can expect to pay £1,154 for a flight from United Kingdom to San Francisco. The cheapest flight overall is £371 while the most popular route, (London Heathrow - San Francisco) is currently priced at £474.

  • 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, February is the cheapest month in which you can book a flight from United Kingdom to San Francisco (average of £475). Flying from United Kingdom to San Francisco in December is currently the most expensive (average of £645). 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
San Bruno
Roseville
Santa Cruz
Newark
Sunnyvale
Bodega Bay

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for United Kingdom to San Francisco

Top 10 airlines flying from United Kingdom to San Francisco

AirlineCheapestAverageFlexibilityOn-time
Virgin AtlanticCheapest£185Average£683FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
DeltaCheapest£339Average£714FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
SWISSCheapest£352Average£599FlexibilityNo cancel feeOn-time79%
Search SWISS flights
TAP AIR PORTUGALCheapest£363Average£482FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
Alaska AirlinesCheapest£368Average£444FlexibilityNo cancel feeOn-time75%
Search Alaska Airlines flights
Brussels AirlinesCheapest£374Average£505FlexibilityNo cancel feeOn-timeN/A
Search Brussels Airlines flights
LufthansaCheapest£376Average£628FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
Austrian AirlinesCheapest£376Average£507FlexibilityNo cancel feeOn-time78%
Search Austrian Airlines flights
Air CanadaCheapest£380Average£793FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
British AirwaysCheapest£384Average£636FlexibilityNo cancel feeOn-time70%
Search British Airways flights

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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.

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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!

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