Find flights
Deals
When to book
Airlines
FAQs

Cheap flights from London to San Francisco Bay Area from £347

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 29/9. Fares are subject to change and may not be available on all flights or dates of travel.
LON — SFO
28 Aug — 4 Sep1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from London to San Francisco Bay Area

Enter your travel dates to find the best prices.

Cheapest flights from London to San Francisco Bay Area
Explore the most affordable flight options available from London to San Francisco Bay Area. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 29 July 2026.

Fri 20/1114:45
LHR
-
SJC
1 stop27h 00m
Alaska Airlines
Mon 14/1207:03
SJC
-
LHR
1 stop21h 17m
Alaska Airlines
Deal found 24/7£447
Sat 7/1114:45
LHR
-
OAK
1 stop15h 54m
Alaska Airlines
Mon 7/1207:00
OAK
-
LHR
1 stop21h 20m
Alaska Airlines
Deal found 28/7£454
Fri 6/1110:05
LHR
-
SFO
Nonstop11h 15m
United Airlines
Tue 10/1112:50
SFO
-
LHR
Nonstop10h 35m
United Airlines
Deal found 28/7£457
Thu 1/1015:20
LHR
-
SFO
2 stops27h 55m
Lufthansa
Sun 18/1012:28
SFO
-
LHR
1 stop13h 42m
Lufthansa
Deal found 28/7£458
Tue 29/909:15
LCY
-
SFO
1 stop14h 05m
Multiple Airlines
Tue 29/923:39
SFO
-
LCY
2 stops35h 01m
Multiple Airlines
Deal found 28/7£458
Sat 22/806:55
LHR
-
SFO
1 stop15h 25m
United Airlines
Sat 22/819:49
SFO
-
LHR
1 stop30h 21m
United Airlines
Deal found 25/7£459
Wed 18/1114:45
LHR
-
SJC
1 stop16h 03m
British Airways
Wed 2/1211:09
SJC
-
LHR
1 stop13h 06m
British Airways
Deal found 28/7£459
Wed 23/913:45
STN
-
SFO
2 stops32h 45m
Multiple Airlines
Tue 29/916:20
SFO
-
STN
2 stops20h 35m
Multiple Airlines
Deal found 24/7£459
Tue 29/913:00
LHR
-
SFO
Nonstop11h 00m
Multiple Airlines
Tue 29/919:45
SFO
-
LHR
Nonstop10h 25m
Multiple Airlines
Deal found 28/7£460
Tue 22/909:15
LCY
-
SFO
1 stop15h 00m
SWISS
Mon 12/1019:35
SFO
-
LCY
1 stop13h 55m
SWISS
Deal found 26/7£460
Sat 24/1009:30
LHR
-
SFO
2 stops19h 50m
Air Canada
Sat 31/1009:00
SFO
-
LHR
2 stops19h 20m
Air Canada
Deal found 25/7£460
Wed 21/1009:15
LCY
-
SFO
2 stops17h 26m
Multiple Airlines
Thu 22/1019:35
SFO
-
LCY
1 stop28h 50m
Multiple Airlines
Deal found 27/7£460

Find flight deals from London to San Francisco Bay Area

Keep the following information in mind while searching for London to San Francisco Bay Area flight deals. Data was last updated 29 July 2026.

Round-trip from

£447

One-way from

£347

Popular in

July

Cheapest in

February

Average price

£632
Alaska Airlines
  • Alaska Airlines
  • 20/11-14/12
  • 2 total stops
  • 48h 17m total
  • London to San Francisco Bay Area
Search Deals
Alaska Airlines
  • Alaska Airlines
  • 29/9
  • 1 total stop
  • 13h 54m total
  • London to San Francisco Bay Area
Search Deals
Highest demand for flights based on searches. 11% potential increase in price (£55 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease (£7 potential savings vs. average return price).
Search Deals
Average for round-trip flights in July 2026
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from London to San Francisco Bay Area 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 29 July 2026.
Use the filters below to find and compare flights from London to San Francisco Bay Area that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonOakland

LHR - OAK

LHROAK

London Heathrow

Wed 30/9

17:00-09:27

1 stop24h 27m

Oakland

Sat 3/10

07:02-15:05

1 stop24h 03m

£496

LondonSan Francisco

LCY - SFO

LCYSFO

London City

Wed 9/9

09:15-16:35

1 stop15h 20m

San Francisco

Wed 30/9

14:25-12:35

1 stop14h 10m

£506

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Fri 4/9

08:40-16:15

1 stop15h 35m

San Francisco

Fri 4/9

23:59-07:55

1 stop23h 56m

£513

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Thu 27/8

16:15-19:10

Nonstop10h 55m

San Francisco

Wed 9/9

12:55-07:25

Nonstop10h 30m

£518
Fastest return journey

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Mon 24/8

13:00-16:00

Nonstop11h 00m

San Francisco

Sun 6/9

19:50-14:10

Nonstop10h 20m

£518

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Sun 20/9

19:50-14:05

1 stop26h 15m

San Francisco

Sat 10/10

19:35-10:20

1 stop30h 45m

£519

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Tue 22/9

16:15-19:15

Nonstop11h 00m

San Francisco

Sun 27/9

19:45-14:10

Nonstop10h 25m

£519

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

Sun 20/9

09:30-20:47

1 stop19h 17m

San Francisco

Sun 27/9

12:28-10:10

1 stop13h 42m

£520

LondonOakland

LHR - OAK

LHROAK

London Heathrow

Tue 10/11

06:20-23:56

2 stops25h 36m

Oakland

Tue 17/11

05:55-08:45

2 stops18h 50m

£526

LondonSan Jose

LHR - SJC

LHRSJC

London Heathrow

Tue 17/11

06:30-17:05

2 stops18h 35m

San Jose

Tue 1/12

11:35-10:40

1 stop15h 05m

£530

Flights are sorted by cheapest return flights first.

Deals found on 25/7

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

Best time to book a flight from London to San Francisco Bay Area

Have a flexible travel schedule? Discover the best time to fly to San Francisco Bay Area from London 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 London to San Francisco Bay Area

What is the cheapest month to book a flight from London to San Francisco Bay Area?

Currently, February is the cheapest month in which you can book a flight from London to San Francisco Bay Area (average of £442). Flying from London to San Francisco Bay Area in December is currently the most expensive (average of £640). 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 LON to XIH?

Find hourly flight availability from London to San Francisco Bay Area. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 29 July 2026.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from London to San Francisco Bay Area as you normally would.

Weekly flight availability from London to San Francisco Bay Area

Explore weekly flight availability from London to San Francisco Bay Area. 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 29 July 2026.

The most flights from LON to zzXIH are scheduled on a Monday (44 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (33 on average).

How far ahead should I book a flight from London to San Francisco Bay Area?

Booking 22 days in advance of your planned departure date is, on average, the best time to get cheap flights from London to San Francisco Bay Area. 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 Bay Area

Get insights into the airlines that provide service to San Francisco Bay Area. 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 Bay Area. Reviews last updated 29 July 2026.
Read reviews from past customers who have flown with Austrian Airlines,Virgin Atlantic, andUnited Airlines from London to San Francisco Bay Area. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Austrian Airlines
7.6
Good
950 reviews
Check prices

Crew

8.1

Food

6.8

Boarding

7.6

Overall

7.6

Entertainment

6.8

Comfort

7.3

Reviews

1 / 20
8.0
Excellent

Anonymous,Jul 2026

VIE - EWR

Staff is courteous. Food is served with a nice touch, with the chef coming out to discuss the menu. But the quality and variety of food and snacks is below competing airlines. Onboard in Vienna was a bit chaotic. I am 6 ft 1 in tall and the flat beds are a bit tight. Other than that, the overall experience was fine.
Austrian Airlines
7.6
Good
950 reviews
Austrian Airlines
7.6
Good
950 reviews
Check prices

Crew

8.1

Food

6.8

Boarding

7.6

Overall

7.6

Entertainment

6.8

Comfort

7.3

Reviews

1 / 20
8.0
Excellent

Anonymous,Jul 2026

VIE - EWR

Staff is courteous. Food is served with a nice touch, with the chef coming out to discuss the menu. But the quality and variety of food and snacks is below competing airlines. Onboard in Vienna was a bit chaotic. I am 6 ft 1 in tall and the flat beds are a bit tight. Other than that, the overall experience was fine.
Virgin Atlantic
7.5
Good
694 reviews
Austrian Airlines
7.6
Good
950 reviews
Check prices

Crew

8.1

Food

6.8

Boarding

7.6

Overall

7.6

Entertainment

6.8

Comfort

7.3

Reviews

1 / 20
8.0
Excellent

Anonymous,Jul 2026

VIE - EWR

Staff is courteous. Food is served with a nice touch, with the chef coming out to discuss the menu. But the quality and variety of food and snacks is below competing airlines. Onboard in Vienna was a bit chaotic. I am 6 ft 1 in tall and the flat beds are a bit tight. Other than that, the overall experience was fine.
United Airlines
7.4
Good
10,046 reviews
Austrian Airlines
7.6
Good
950 reviews
Check prices

Crew

8.1

Food

6.8

Boarding

7.6

Overall

7.6

Entertainment

6.8

Comfort

7.3

Reviews

1 / 20
8.0
Excellent

Anonymous,Jul 2026

VIE - EWR

Staff is courteous. Food is served with a nice touch, with the chef coming out to discuss the menu. But the quality and variety of food and snacks is below competing airlines. Onboard in Vienna was a bit chaotic. I am 6 ft 1 in tall and the flat beds are a bit tight. Other than that, the overall experience was fine.
Lufthansa
6.8
Okay
8,162 reviews
Austrian Airlines
7.6
Good
950 reviews
Check prices

Crew

8.1

Food

6.8

Boarding

7.6

Overall

7.6

Entertainment

6.8

Comfort

7.3

Reviews

1 / 20
8.0
Excellent

Anonymous,Jul 2026

VIE - EWR

Staff is courteous. Food is served with a nice touch, with the chef coming out to discuss the menu. But the quality and variety of food and snacks is below competing airlines. Onboard in Vienna was a bit chaotic. I am 6 ft 1 in tall and the flat beds are a bit tight. Other than that, the overall experience was fine.
British Airways
6.7
Okay
8,129 reviews
Austrian Airlines
7.6
Good
950 reviews
Check prices

Crew

8.1

Food

6.8

Boarding

7.6

Overall

7.6

Entertainment

6.8

Comfort

7.3

Reviews

1 / 20
8.0
Excellent

Anonymous,Jul 2026

VIE - EWR

Staff is courteous. Food is served with a nice touch, with the chef coming out to discuss the menu. But the quality and variety of food and snacks is below competing airlines. Onboard in Vienna was a bit chaotic. I am 6 ft 1 in tall and the flat beds are a bit tight. Other than that, the overall experience was fine.

Related info for your journey

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

  • How long is the flight from London to San Francisco Bay Area?

    There are many flights that can get you from London to San Francisco Bay Area in 15h 20m. Fly via Alaska Airlines, SWISS, or United Airlines to get the fastest option. There are 5363 mi between London and San Francisco Bay Area. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from London to San Francisco Bay Area one-way?

    The cheapet airlines for a one-way flight from London to San Francisco Bay Area are TAP AIR PORTUGAL (£273), Virgin Atlantic (£303), and Iberia (£329).

  • What are the most popular routes from London to San Francisco Bay Area?

    While some choose either London Gatwick - San Francisco or London City - San Francisco, London Heathrow - San Francisco is the most popular route from London to San Francisco Bay Area.

  • What are the most reliable airlines from London to San Francisco Bay Area?

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from London to San Francisco Bay Area on time: SAUDIA (100%), Air Canada (80%), Austrian Airlines (80%).

  • What are the cheapest flights from London to San Francisco Bay Area?

    On average you can expect to pay £1,630 for a flight from London to San Francisco Bay Area. The cheapest flight overall is £325 while the most popular route, (London Heathrow - San Francisco) is currently priced at £393.

  • Can I find deals for flights from London to San Francisco Bay Area that include hotel bookings?

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

  • How can I find direct flights from London to San Francisco Bay Area?

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

  • Can I find deals for business class flights from London to San Francisco Bay Area?

    Yes. Cheapflights offers flight deals from London to San Francisco Bay Area 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 London to San Francisco Bay Area?

    Currently, February is the cheapest month in which you can book a flight from London to San Francisco Bay Area (average of £442). Flying from London to San Francisco Bay Area in December is currently the most expensive (average of £640). 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.

Alternative routes for London to San Francisco Bay Area

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
Stansted to Los Angeles flights
Heathrow to Las Vegas flights
London City to Los Angeles flights
Luton to Los Angeles flights
Heathrow to Ontario flights
Gatwick to San Francisco flights
London City to San Francisco flights
Stansted to San Francisco flights
Gatwick to Las Vegas flights
London City to Las Vegas flights
Stansted to Las Vegas flights
Luton to San Francisco flights
Heathrow to San Diego flights
Manchester to Las Vegas flights
Heathrow to San Jose flights
Gatwick to Ontario flights
Heathrow to Santa Ana flights
Luton to Las Vegas flights
Manchester to Los Angeles flights
Gatwick to San Diego flights
Stansted to San Diego flights
London City to San Diego flights
Manchester to San Francisco flights
Edinburgh to San Francisco flights
Heathrow to Burbank flights
Gatwick to Oakland flights
Manchester to Ontario flights
Gatwick to Burbank flights
Manchester to Santa Ana flights
Gatwick to San Jose flights
Birmingham to Los Angeles flights
Heathrow to Oakland flights
Birmingham to Las Vegas flights
Southampton to Los Angeles flights
Newcastle upon Tyne to Las Vegas flights
Heathrow to Long Beach flights
Edinburgh to Las Vegas flights
Edinburgh to Los Angeles flights
Gatwick to Santa Ana flights
Newcastle upon Tyne to San Francisco flights
Manchester to San Diego flights
Newcastle upon Tyne to Los Angeles flights
Manchester to San Jose flights
Birmingham to San Francisco flights
Heathrow to Sacramento flights
Heathrow to Reno flights
London City to Ontario flights

Top 10 airlines flying from London to San Francisco Bay Area

Discover the top 10 airlines that operate flights from London to San Francisco Bay Area. 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 29 July 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest£278Average£685FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
SWISSCheapest£353Average£471FlexibilityNo cancel feeOn-time79%
Search SWISS flights
Aer LingusCheapest£358Average£584FlexibilityNo cancel feeOn-timeN/A
Search Aer Lingus flights
TAP AIR PORTUGALCheapest£363Average£484FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
Virgin AtlanticCheapest£371Average£550FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
Brussels AirlinesCheapest£376Average£527FlexibilityNo cancel feeOn-timeN/A
Search Brussels Airlines flights
Austrian AirlinesCheapest£378Average£502FlexibilityNo cancel feeOn-time78%
Search Austrian Airlines flights
Scandinavian AirlinesCheapest£381Average£492FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
Air CanadaCheapest£381Average£601FlexibilityNo cancel feeOn-time67%
Search Air Canada flights
LufthansaCheapest£383Average£567FlexibilityNo 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 London to San Francisco Bay Area?

Cheapflights helps you search for flights from London to San Francisco Bay Area via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

Why should you use Cheapflights to find cheap flight tickets from London to San Francisco Bay Area?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from London to San Francisco Bay Area for you. Better yet — we are completely free to use.

Can Cheapflights find flights from London to San Francisco Bay Area with no change fees?

Need flexible booking options for your flight to San Francisco Bay Area from London? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from London to San Francisco Bay Area become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to San Francisco Bay Area from London today and book when prices fit your budget.

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.