Cheap flights from San Francisco Bay Area to London

SFO — LON
6 Jun — 13 Jun1
1 adult
1 adult, Economy, 0 bags

Find flight deals from San Francisco Bay Area to London

Keep the following information in mind while searching for San Francisco Bay Area to London flight deals. Data was last updated 7 May 2026.

Round-trip from

£562

One-way from

£245

Popular in

June

Cheapest in

February

Average price

£666
Scandinavian Airlines
  • Scandinavian Airlines
  • 29/10-9/11
  • 2 total stops
  • 33h 45m total
  • San Francisco Bay Area to London
Alaska Airlines
  • Alaska Airlines
  • 20/10
  • 1 total stop
  • 14h 01m total
  • San Francisco Bay Area to London
Highest demand for flights based on searches. 19% potential increase in price (£103 potential increase over avg. return price).
Cheapest flight prices on average. 4% potential price decrease (£17 potential savings vs. average return price).
Average for round-trip flights in May 2026

Cheapflights Insights

Everything you need to know about your flight from San Francisco Bay Area to London

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

Booking 77 days in advance of your planned departure date is, on average, the best time to get cheap flights from San Francisco Bay Area to London. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, October is the cheapest month in which you can book a flight from San Francisco Bay Area to London (average of £466). Flying from San Francisco Bay Area to London in June is currently the most expensive (average of £832). 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 XIH to LON?

Find hourly flight availability from San Francisco Bay Area to London. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 7 May 2026.

It’s typically best to fly out from San Francisco Bay Area to London in the evening. Doing so could potentially save you 24% on the flight price compared to flying at midday, which is usually more expensive.

What is the cheapest day to fly from San Francisco Bay Area to London?

Use this chart to determine the cheapest time to fly return from San Francisco Bay Area to London. Price data was last updated on 2 May 2026.

Travellers seeking maximum savings on their San Francisco Bay Area to London flight should consider departing on Tuesday at midday when fares are most often at their lowest. Friday at midday flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing London

Get insights into the airlines that provide service to London. 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 London. Reviews last updated 7 May 2026.
See what other customers who have flown with KLM,United Airlines, andVirgin Atlantic from San Francisco Bay Area to London have to say. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Boarding

7.8

Overall

7.8

Entertainment

7.2

Comfort

7.7

Crew

8.4

Food

7.3

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2026

OKC - ATL

Flight was ok - difficult as I had seat next to bathroom.. Food awful

Boarding

7.8

Overall

7.8

Entertainment

7.2

Comfort

7.7

Crew

8.4

Food

7.3

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2026

OKC - ATL

Flight was ok - difficult as I had seat next to bathroom.. Food awful

Boarding

7.8

Overall

7.8

Entertainment

7.2

Comfort

7.7

Crew

8.4

Food

7.3

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2026

OKC - ATL

Flight was ok - difficult as I had seat next to bathroom.. Food awful

Boarding

7.8

Overall

7.8

Entertainment

7.2

Comfort

7.7

Crew

8.4

Food

7.3

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2026

OKC - ATL

Flight was ok - difficult as I had seat next to bathroom.. Food awful

Boarding

7.8

Overall

7.8

Entertainment

7.2

Comfort

7.7

Crew

8.4

Food

7.3

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2026

OKC - ATL

Flight was ok - difficult as I had seat next to bathroom.. Food awful

Boarding

7.8

Overall

7.8

Entertainment

7.2

Comfort

7.7

Crew

8.4

Food

7.3

Reviews

1 / 20
6.0
Good

Anonymous,Apr 2026

OKC - ATL

Flight was ok - difficult as I had seat next to bathroom.. Food awful

Related info for your journey

Find useful and relevant information for your journey from San Francisco Bay Area to London. 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 San Francisco Bay Area to London?

    Departing from San Francisco Bay Area to London will take you 10h 20m. San Francisco Bay Area and London are separated by a distance of 5350 mi. All flights are typically direct.

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

    For one-way options, check prices for United Airlines. According to our data, you can fly for as low as £242. Users have also found prices from £255 and £262 on Virgin Atlantic and KLM, respectively.

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

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

    No one likes to see their flight delayed. When booking a flight from San Francisco Bay Area to London consider choosing American Airlines (90%), Alaska Airlines (90%) or British Airways (90%) as they are the most reliable in getting you off to your destination on time.

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

    On average you can expect to pay £1,435 for a flight from San Francisco Bay Area to London. The cheapest flight overall is £340 while the most popular route, (San Francisco - London Heathrow) is currently priced at £485.

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

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

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

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

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

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

    Currently, October is the cheapest month in which you can book a flight from San Francisco Bay Area to London (average of £466). Flying from San Francisco Bay Area to London in June is currently the most expensive (average of £832). 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 London?

Book flights to London if you plan to visit one of these locations
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Browse thousands of different options on Cheapflights for your next trip

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Top 5 airlines flying from San Francisco Bay Area to London

Discover the top 5 airlines that operate flights from San Francisco Bay Area to London. 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 7 May 2026.
AirlineCheapestAverageFlexibilityOn-time
Virgin AtlanticCheapest£364Average£528FlexibilityNo cancel feeOn-time72%
Search Virgin Atlantic flights
KLMCheapest£365Average£680FlexibilityNo cancel feeOn-time75%
Search KLM flights
LufthansaCheapest£367Average£649FlexibilityNo cancel feeOn-time76%
Search Lufthansa flights
British AirwaysCheapest£382Average£504FlexibilityNo cancel feeOn-time70%
Search British Airways flights
United AirlinesCheapest£383Average£574FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

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How does Cheapflights help users find flights from San Francisco Bay Area to London?

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

Cheapflights simply makes it quick and affordable to book flights from San Francisco Bay Area to London by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

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

Need flexible booking options for your flight to London from San Francisco Bay Area? 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 San Francisco Bay Area to London become cheaper?

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

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