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Cheap flights from London to San Francisco Bay Area from £232

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 22/9. Fares are subject to change and may not be available on all flights or dates of travel.
LON — SFO
20 jul. — 27 jul.1
1 adult

Cheap 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 15 juli 2025.

Round-trip from

£399

One-way from

£232

Popular in

July

Cheapest in

February

Average price

£667
Air Canada
  • Air Canada
  • 4/11-9/11
  • 3 total stops
  • 37h 27m total
  • London to San Francisco Bay Area
Search Deals
22/9
  • 22/9
  • 3 total stops
  • 48h 31m total
  • London to San Francisco Bay Area
Search Deals
Highest demand for flights based on searches. 17% potential increase in price (£78 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease (£12 potential savings vs. average return price).
Search Deals
Average for round-trip flights in July 2025
Search Deals

Find flight deals from London to San Francisco Bay Area

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 15 juli 2025.

ti. 4/1108:55LHR - SFO
2 stops19h 55mMultiple Airlines
sø. 9/1108:38SFO - LHR
1 stop17h 32mMultiple Airlines
Deal found 13/7£399
sø. 7/918:40LGW - SFO
1 stop29h 30mSWISS
sø. 14/919:30SFO - LGW
1 stop14h 20mSWISS
Deal found 14/7£399
sø. 24/806:30LHR - SFO
1 stop21h 20mUnited Airlines
ti. 9/913:05SFO - LHR
Nonstop10h 20mUnited Airlines
Deal found 14/7£400
ma. 13/1016:25LGW - SFO
1 stop29h 10mTAP AIR PORTUGAL
lø. 25/1019:35SFO - LGW
2 stops18h 05mTAP AIR PORTUGAL
Deal found 14/7£400
on. 10/914:15LHR - SFO
Nonstop11h 10mBritish Airways
to. 18/916:30SFO - LHR
Nonstop10h 25mBritish Airways
Deal found 13/7£401
ti. 16/908:45LHR - SFO
2 stops18h 53mAir Canada
lø. 27/908:40SFO - LHR
2 stops16h 55mAir Canada
Deal found 14/7£403
fr. 19/911:35LGW - SFO
2 stops20h 24mBritish Airways
fr. 26/910:22SFO - LGW
1 stop13h 48mBritish Airways
Deal found 13/7£403
ma. 24/1109:15LCY - SFO
1 stop15h 10mSWISS
lø. 6/1219:25SFO - LCY
1 stop33h 25mSWISS
Deal found 13/7£403
sø. 7/1219:25LHR - SFO
2 stops32h 19mAustrian Airlines
lø. 31/108:25SFO - LHR
1 stop18h 25mAustrian Airlines
Deal found 14/7£404
lø. 6/916:15LHR - SFO
Nonstop11h 00mBrussels Airlines
lø. 20/916:05SFO - LHR
Nonstop10h 20mBrussels Airlines
Deal found 13/7£406
to. 28/810:45LGW - OAK
2 stops28h 33mMultiple Airlines
to. 4/906:00OAK - LGW
2 stops20h 55mMultiple Airlines
Deal found 14/7£409
sø. 24/816:25LHR - SFO
Nonstop11h 05mVirgin Atlantic
ti. 9/921:20SFO - LHR
Nonstop10h 20mVirgin Atlantic
Deal found 14/7£409

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 15 juli 2025.
Use the filters below to find and compare flights from London to San Francisco Bay Area that are best for you.

Fly from

London

Fly to

San Francisco Bay Area

Route

Depart

Return

Price

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

ti. 4/11

08:55-20:50

2 stops19h 55m

San Francisco

sø. 9/11

08:38-10:10

1 stop17h 32m

£399

LondonSan Francisco

LGW - SFO

LGWSFO

London Gatwick

sø. 7/9

18:40-16:10

1 stop29h 30m

San Francisco

sø. 14/9

19:30-17:50

1 stop14h 20m

£399

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

sø. 24/8

06:30-19:50

1 stop21h 20m

San Francisco

ti. 9/9

13:05-07:25

Nonstop10h 20m

£400

LondonSan Francisco

LGW - SFO

LGWSFO

London Gatwick

ma. 13/10

16:25-13:35

1 stop29h 10m

San Francisco

lø. 25/10

19:35-20:40

2 stops18h 05m

£400

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

on. 10/9

14:15-17:25

Nonstop11h 10m

San Francisco

to. 18/9

16:30-10:55

Nonstop10h 25m

£401

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

ti. 16/9

08:45-19:38

2 stops18h 53m

San Francisco

lø. 27/9

08:40-09:35

2 stops16h 55m

£403

LondonSan Francisco

LGW - SFO

LGWSFO

London Gatwick

fr. 19/9

11:35-23:59

2 stops20h 24m

San Francisco

fr. 26/9

10:22-08:10

1 stop13h 48m

£403

LondonSan Francisco

LCY - SFO

LCYSFO

London City

ma. 6/10

08:10-16:10

1 stop16h 00m

San Francisco

lø. 18/10

19:30-18:45

1 stop15h 15m

£403

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

sø. 7/12

19:25-19:44

2 stops32h 19m

San Francisco

lø. 31/1

08:25-05:55

2 stops37h 30m

£404

LondonSan Francisco

LHR - SFO

LHRSFO

London Heathrow

lø. 6/9

16:15-19:15

Nonstop11h 00m

San Francisco

lø. 20/9

16:05-10:25

Nonstop10h 20m

£406

Flights are sorted by cheapest return flights first.

Deals found on 14/7

Showing 1-10 of 60 results
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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 £538). Flying from London to San Francisco Bay Area in July is currently the most expensive (average of £803). 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 15 juli 2025.

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 15 juli 2025.

The most flights from LON to zzXIH are scheduled on a Monday (43 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (43 on average).

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 15 juli 2025.
Read reviews from past customers who have flown with Delta, KLM, andAustrian 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.
Delta
8.0
Very Good
7,956 reviews
Check prices

Overall

8.0

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Crew

8.5

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Delta
8.0
Very Good
7,956 reviews
Delta
8.0
Very Good
7,956 reviews
Check prices

Overall

8.0

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Crew

8.5

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
KLM
7.8
Good
1,372 reviews
Delta
8.0
Very Good
7,956 reviews
Check prices

Overall

8.0

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Crew

8.5

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Austrian Airlines
7.6
Good
814 reviews
Delta
8.0
Very Good
7,956 reviews
Check prices

Overall

8.0

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Crew

8.5

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Finnair
7.6
Good
1,316 reviews
Delta
8.0
Very Good
7,956 reviews
Check prices

Overall

8.0

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Crew

8.5

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
SWISS
7.5
Good
1,657 reviews
Delta
8.0
Very Good
7,956 reviews
Check prices

Overall

8.0

Entertainment

7.9

Boarding

8.2

Comfort

7.9

Crew

8.5

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

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.

  • 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 Aer Lingus (£396), JetBlue (£400), and Iberia (£406).

  • 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: Air New Zealand (87%), Air Canada (87%), Austrian Airlines (87%).

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

    On average you can expect to pay £1,937 for a flight from London to San Francisco Bay Area. The cheapest flight overall is £400 while the most popular route, (London Heathrow - San Francisco) is currently priced at £351.

  • 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 £538). Flying from London to San Francisco Bay Area in July is currently the most expensive (average of £803). 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 London to San Francisco Bay Area

See prices for flight routes from nearby airports that may be better suited for you.
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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 15 juli 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest£237Average£487FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
Air FranceCheapest£315Average£429FlexibilityNo cancel feeOn-time77%
Search Air France flights
United AirlinesCheapest£337Average£572FlexibilityNo cancel feeOn-time69%
Search United Airlines flights
TAP AIR PORTUGALCheapest£348Average£471FlexibilityNo cancel feeOn-timeN/A
Search TAP AIR PORTUGAL flights
Scandinavian AirlinesCheapest£349Average£578FlexibilityNo cancel feeOn-time77%
Search Scandinavian Airlines flights
SWISSCheapest£351Average£408FlexibilityNo cancel feeOn-time79%
Search SWISS flights
Virgin AtlanticCheapest£361Average£504FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
Brussels AirlinesCheapest£362Average£485FlexibilityNo cancel feeOn-timeN/A
Search Brussels Airlines flights
British AirwaysCheapest£364Average£594FlexibilityNo cancel feeOn-time70%
Search British Airways flights
FinnairCheapest£369Average£477FlexibilityNo cancel feeOn-time76%
Search Finnair 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.

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