Best time to go: what is the RIGHT price for a round-trip flight to San Francisco (from: London)

The average price to go to San Francisco from London airport is $ 591 (round trip). However, there are variations depending on the departure month. Thus, it is possible to pay for your plane ticket on average between $ 498 (in february) and $ 860 (in august), which is a saving of $ 94 or a surplus of $ 269 (compared to the average price) depending on the period you leave.

The analysis of all prices reveals that the most frequent price is between $482 to $535 and it is generally more economical to leave on a wednesday and return on a monday on a flight with 1 or more layovers.

Be careful, the cheapest months may correspond to unfavorable weather periods . Check out our page best time to go to San Francisco before booking your flight.

If you want to know when to book your flight at the best price, go straight to the second part of this page: When to buy your London-San Francisco plane ticket.

How are these data calculated?

We have studied a sample of 60920 airfare prices from previous years for flights to San Francisco from London and can thus establish precise and credible price variation trends based on different parameters. Of course, prices can vary from year to year, but the seasonal aspect of this data (recurrence of school holidays, events... from year to year) makes these statistics quite reliable.

Average price depending on the departure month

Data analysis:

By leaving in february, the price of the plane ticket will statistically be the cheapest ($ 498, saving $ 94 compared to the average price over the year which is $ 591). Conversely, august will be the most expensive ($ 860).

Flight London-San Francisco: when is the best time to go for the best price?

Month Good price* Average price Our opinion
January$ 460 $ 536 good price
February$ 457 $ 498 very good price
March$ 462 $ 529 good price
April$ 494 $ 572 good price
May$ 492 $ 542 good price
June$ 533 $ 613 fair price
July$ 560 $ 658 fair price
August$ 717 $ 860 very high price
September$ 509 $ 536 good price
October$ 494 $ 549 good price
November$ 465 $ 540 good price
December$ 528 $ 651 fair price

*great price to buy your plane ticket: if you see this price or cheaper during your flight search, go for it and buy it!

Price breakdown to travel from London to San Francisco

Data analysis:

The prices for flights from London to San Francisco range from $321 to $1017. 1% of tickets were purchased at the minimum price (from $321 to $375), 1% at the maximum price (from $963 to $1017). The majority of plane tickets were purchased in the range of $482 to $535 (26% of tickets).

Cheapest airlines for the London->San Francisco flight

There are 14 companies that serve London from San Francisco airport: British Airways, Virgin Atlantic, Lufthansa, TAP, Air France, Brussels Airlines, Finnair, KLM, Iberia, Ryanair, United, Aer Lingus, Air Canada and Austrian Airlines.

Data analysis:

Of the 60920 flights analyzed in previous years, British Airways was the airline that offered the best fare most often in the flight ticket search results (25% of the time) on the London->San Francisco route.

Direct flight or flight with layover?

Data analysis:

To get the best price for the London-San Francisco flight, you should take a flight with one or more layovers (you will save an average of $ 118 compared to a direct flight).

Which day of the week to leave?

Data analysis:

Statistically, London-San Francisco flights departing on a wednesday are cheaper than on other days of the week. By choosing a wednesday as your departure date, you can save an average of $53. On the other hand, departing on a sunday may cost you an additional $140.

Which day of the week to come back?

Data analysis:

Statistically, return flights from San Francisco to London departing on a monday are cheaper than on other days of the week. By choosing a monday for your return date, you will save an average of $50. Conversely, departing from San Francisco on a friday may cost you an additional $89.


Top prices London-San Francisco

Round tripDatesPrice
London → San Francisco03-11 to 18-11-2024$ 487 
London → San Francisco07-11 to 12-11-2024$ 451 
London → San Francisco16-11 to 29-11-2024$ 480 
London → San Francisco22-11 to 29-11-2024$ 450 
London → San Francisco15-01 to 25-01-2025$ 462 
London → San Francisco16-02 to 22-02-2025$ 471 
London → San Francisco07-03 to 15-03-2025$ 448 
London → San Francisco13-03 to 17-03-2025$ 451 
London → San Francisco20-03 to 30-03-2025$ 487 
London → San Francisco08-04 to 25-04-2025$ 464 


When to book your flight London - San Francisco to get the cheapest price?

Statistically, you will make the biggest savings by buying your plane ticket between 1 to 2 months in advance. However, you may end up paying a high price if you book between 11 to 12 months in advance.

Did you know: the price of plane tickets not only varies depending on how far in advance you book, but also on the day of the week you book! So, to maximize your chances of getting the best price for a London-San Francisco flight, it is recommended to book your ticket on a wednesday.

How far in advance should I buy my flight?

Data analysis:

To get the cheapest flight ticket from London to San Francisco, it is recommended to buy it 1 to 2 months before departure (it is then on average 549 $, which is a saving of 42 $ compared to the overall average price). On the other hand, if you buy your ticket 11 to 12 months in advance, you will pay the full price (111 $ more than the average price).

Depending on the departure month

The best time to buy your London to San Francisco flight ticket may vary depending on your departure month. Therefore, we offer you statistics on when to book your flight month by month.

Departure on... How far in advance should I book?
January

Best time: 4 to 5 months before departure (average price: 446 $)

Other interesting period(s): 1 to 2 months ($ 501), 3 to 4 months ($ 458), 5 to 6 months ($ 460)

February

Best time: 4 to 5 months before departure (average price: 442 $)

Other interesting period(s): 1 to 2 months ($ 493), 2 to 3 months ($ 474), 3 to 4 months ($ 487), 5 to 6 months ($ 442), 6 to 7 months ($ 454)

March

Best time: 6 to 7 months before departure (average price: 444 $)

Other interesting period(s): 3 to 4 months ($ 475), 4 to 5 months ($ 516), 5 to 6 months ($ 448)

April

Best time: 6 to 7 months before departure (average price: 479 $)

Other interesting period(s): 3 to 4 months ($ 544), 4 to 5 months ($ 542), 7 to 8 months ($ 484), 8 to 9 months ($ 501)

May

Best time: 7 to 8 months before departure (average price: 474 $)

Other interesting period(s): 4 to 5 months ($ 527), 5 to 6 months ($ 540), 6 to 7 months ($ 532), 8 to 9 months ($ 478), 9 to 10 months ($ 513)

June

Best time: 9 to 10 months before departure (average price: 511 $)

Other interesting period(s): 6 to 7 months ($ 569), 7 to 8 months ($ 595), 8 to 9 months ($ 547), 10 to 11 months ($ 567), 11 to 12 months ($ 587)

July

Best time: 10 to 11 months before departure (average price: 557 $)

Other interesting period(s): 6 to 7 months ($ 628), 7 to 8 months ($ 608), 8 to 9 months ($ 613), 9 to 10 months ($ 559), 11 to 12 months ($ 598)

August

Best time: 11 to 12 months before departure (average price: 732 $)

Other interesting period(s): 7 to 8 months ($ 840), 8 to 9 months ($ 746), 9 to 10 months ($ 779), 10 to 11 months ($ 741)

September

Best time: 9 to 10 months before departure (average price: 498 $)

Other interesting period(s): 0 to 1 month ($ 519), 8 to 9 months ($ 521), 10 to 11 months ($ 533), 11 to 12 months ($ 534)

October

Best time: 1 to 2 months before departure (average price: 464 $)

Other interesting period(s): 9 to 10 months ($ 515), 10 to 11 months ($ 511)

November

Best time: 1 to 2 months before departure (average price: 429 $)

Other interesting period(s): 2 to 3 months ($ 444), 3 to 4 months ($ 485), 5 to 6 months ($ 536), 10 to 11 months ($ 526)

December

Best time: 3 to 4 months before departure (average price: 495 $)

Other interesting period(s): 1 to 2 months ($ 601), 2 to 3 months ($ 511)

What day of the week should I book my flight ticket?

Data analysis:

Statistically, wednesday is the day when plane tickets for London->San Francisco are the cheapest. So, by buying your plane ticket on a wednesday, you will save $8. Conversely, by buying it on a thursday, you may end up paying $12 more.



London to San Francisco: flight price when booking today

Information: this data is not statistics but comes from real prices collected less than 7 days ago. Some months may not be available as we do not have enough data for them.

Month Current price
June 2024$ 943
$655 to $1787
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July 2024$ 817
$511 to $1123
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August 2024$ 1145
$726 to $1961
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September 2024$ 593
$513 to $697
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October 2024$ 608
$466 to $773
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November 2024$ 574
$450 to $736
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December 2024$ 679
$504 to $965
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January 2025$ 585
$462 to $773
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February 2025$ 567
$448 to $667
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March 2025$ 577
$448 to $1154
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April 2025$ 803
$464 to $1203
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May 2025$ 648
$452 to $1662
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Data analysis:

Compared to the average price, no month is currently cheaper. We therefore advise you to wait for prices to drop before booking your flight to San Francisco.



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