Statistics on London-Boston flights: what is the right price and when to buy your plane ticket?

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

The average price to go to Boston from London airport is $ 636 (round trip). However, there are variations depending on the departure month. Thus, it is possible to pay for your plane ticket on average between $ 532 (in september) and $ 937 (in august), which is a saving of $ 105 or a surplus of $ 301 (compared to the average price) depending on the period you leave.

The analysis of all prices reveals that the most frequent price is between $495 to $550 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 Boston 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-Boston plane ticket.

How are these data calculated?

We have studied a sample of 60055 airfare prices from previous years for flights to Boston 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

Created with Highcharts 8.2.2 $562 $562 $545 $545 $534 $534 $681 $681 $554 $554 $654 $654 $767 $767 $937 $937 $532 $532 $605 $605 $545 $545 $716 $716Average price of round-trip airfare in USD according to the departure monthjan.feb.mar.apr.mayjun.jul.aug.sep.oct.nov.dec.4005006007008009001000

Data analysis:

By leaving in september, the price of the plane ticket will statistically be the cheapest ($ 532, saving $ 105 compared to the average price over the year which is $ 636). Conversely, august will be the most expensive ($ 937).

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

Month Good price* Average price Our opinion
January$ 463 $ 562 good price
February$ 467 $ 545 good price
March$ 455 $ 534 good price
April$ 527 $ 681 fair price
May$ 504 $ 554 good price
June$ 558 $ 654 good price
July$ 629 $ 767 fair price
August$ 797 $ 937 very high price
September$ 473 $ 532 very good price
October$ 515 $ 605 good price
November$ 466 $ 545 good price
December$ 535 $ 716 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 Boston

Created with Highcharts 8.2.24%4%8%8%14%14%20%20%16%16%9%9%6%6%4%4%3%3%2%2%2%2%2%2%2%2%2%2%2%2%Percentage of plane tickets found at this price$330 to$385$385 to$440$440 to$495$495 to$550$550 to$605$605 to$660$660 to$714$714 to$769$769 to$824$824 to$879$879 to$934$934 to$989$989 to$1044$1044 to$1099$1099 to$11540510152025

Data analysis:

The prices for flights from London to Boston range from $330 to $1154. 4% of tickets were purchased at the minimum price (from $330 to $385), 2% at the maximum price (from $1099 to $1154). The majority of plane tickets were purchased in the range of $495 to $550 (20% of tickets).

Cheapest airlines for the London->Boston flight

There are 14 companies that serve London from Boston airport: British Airways, jetBlue, Virgin Atlantic, Fly Play, Icelandair, Air France, EasyJet, Finnair, KLM, TAP, Iberia, Delta, American Airlines and Vueling Airlines.

Created with Highcharts 8.2.2British Airways: 25 %British Airways: 25 %jetBlue: 17 %jetBlue: 17 %Virgin Atlantic: 15 %Virgin Atlantic: 15 %Fly Play: 12 %Fly Play: 12 %Icelandair: 5 %Icelandair: 5 %Air France: 4 %Air France: 4 %EasyJet: 4 %EasyJet: 4 %Finnair: 3 %Finnair: 3 %KLM: 3 %KLM: 3 %TAP: 2 %TAP: 2 %

Data analysis:

Of the 60055 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->Boston route.

Direct flight or flight with layover?

Created with Highcharts 8.2.2 $686 $686 $513 $513Average ticket price: direct flight or flight with layover(s)Direct flightFlight with layover400450500550600650700

Data analysis:

To get the best price for the London-Boston flight, you should take a flight with one or more layovers (you will save an average of $ 191 compared to a direct flight).

Which day of the week to leave?

Created with Highcharts 8.2.2 $ +84 $ +84 $ +2 $ +2 $ -29 $ -29 $ -42 $ -42 $ -9 $ -9 $ +4 $ +4 $ +14 $ +14Average airfare price according to the departure daya sundaya mondaya tuesdaya wednesdaya thursdaya fridaya saturday-50-250255075100

Data analysis:

Statistically, London-Boston 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 $42. On the other hand, departing on a sunday may cost you an additional $84.

Which day of the week to come back?

Created with Highcharts 8.2.2 $ -4 $ -4 $ -37 $ -37 $ -29 $ -29 $ -25 $ -25 $ 0 $ 0 $ +48 $ +48 $ +40 $ +40Average airfare price based on the return daya sundaya mondaya tuesdaya wednesdaya thursdaya fridaya saturday-60-40-200204060

Data analysis:

Statistically, return flights from Boston 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 $37. Conversely, departing from Boston on a friday may cost you an additional $48.

Top prices London-Boston

Round tripDatesPrice
London → Boston22-04 to 27-04-2025$ 400 
London → Boston10-09 to 30-09-2025$ 392 
London → Boston25-01 to 30-01-2026$ 378 
London → Boston27-01 to 31-01-2026$ 373 
London → Boston03-02 to 10-02-2026$ 382 
London → Boston02-03 to 09-03-2026$ 367 
London → Boston04-03 to 09-03-2026$ 392 
London → Boston11-03 to 16-03-2026$ 366 
London → Boston12-03 to 19-03-2026$ 394 
London → Boston16-03 to 24-03-2026$ 392 

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

Statistically, you will make the biggest savings by buying your plane ticket between 3 to 4 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-Boston flight, it is recommended to book your ticket on a saturday.

How far in advance should I buy my flight?

Created with Highcharts 8.2.2 $746 $746 $607 $607 $602 $602 $599 $599 $614 $614 $621 $621 $622 $622 $625 $625 $610 $610 $617 $617 $651 $651 $777 $777Average airfare price based on the number of months between booking and flight0 to 1 month1 to 2 months2 to 3 months3 to 4 months4 to 5 months5 to 6 months6 to 7 months7 to 8 months8 to 9 months9 to 10 months10 to 11 months11 to 12 months450500550600650700750800

Data analysis:

To get the cheapest flight ticket from London to Boston, it is recommended to buy it 3 to 4 months before departure (it is then on average 599 $, which is a saving of 37 $ 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 (141 $ more than the average price).

Depending on the departure month

The best time to buy your London to Boston 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: 6 to 7 months before departure (average price: 484 $)

Other interesting period(s): 3 to 4 months ($ 489), 4 to 5 months ($ 502), 5 to 6 months ($ 523), 7 to 8 months ($ 507), 8 to 9 months ($ 507), 9 to 10 months ($ 538), 10 to 11 months ($ 540)
February

Best time: 7 to 8 months before departure (average price: 453 $)

Other interesting period(s): 1 to 2 months ($ 520), 2 to 3 months ($ 539), 3 to 4 months ($ 508), 4 to 5 months ($ 517), 5 to 6 months ($ 499), 6 to 7 months ($ 522), 8 to 9 months ($ 509), 9 to 10 months ($ 526)
March

Best time: 8 to 9 months before departure (average price: 460 $)

Other interesting period(s): 2 to 3 months ($ 508), 3 to 4 months ($ 505), 4 to 5 months ($ 495), 5 to 6 months ($ 507), 6 to 7 months ($ 484), 7 to 8 months ($ 493), 9 to 10 months ($ 487), 10 to 11 months ($ 498)
April

Best time: 5 to 6 months before departure (average price: 635 $)

Other interesting period(s): 1 to 2 months ($ 654), 2 to 3 months ($ 675), 3 to 4 months ($ 675), 4 to 5 months ($ 681), 6 to 7 months ($ 661), 8 to 9 months ($ 657)
May

Best time: 10 to 11 months before departure (average price: 490 $)

Other interesting period(s): 3 to 4 months ($ 543), 4 to 5 months ($ 523), 6 to 7 months ($ 552), 7 to 8 months ($ 545), 8 to 9 months ($ 528), 9 to 10 months ($ 540)
June

Best time: 8 to 9 months before departure (average price: 576 $)

Other interesting period(s): 4 to 5 months ($ 617), 5 to 6 months ($ 591), 6 to 7 months ($ 649), 7 to 8 months ($ 618), 9 to 10 months ($ 610)
July

Best time: 6 to 7 months before departure (average price: 689 $)

Other interesting period(s): 1 to 2 months ($ 702), 2 to 3 months ($ 756), 4 to 5 months ($ 767), 5 to 6 months ($ 727), 7 to 8 months ($ 750), 8 to 9 months ($ 739), 9 to 10 months ($ 735), 10 to 11 months ($ 718)
August

Best time: 2 to 3 months before departure (average price: 846 $)

Other interesting period(s): 1 to 2 months ($ 926), 5 to 6 months ($ 926), 6 to 7 months ($ 930), 7 to 8 months ($ 910), 8 to 9 months ($ 899), 9 to 10 months ($ 890), 10 to 11 months ($ 909)
September

Best time: 2 to 3 months before departure (average price: 476 $)

Other interesting period(s): 1 to 2 months ($ 494), 3 to 4 months ($ 506), 7 to 8 months ($ 526), 8 to 9 months ($ 516), 9 to 10 months ($ 522)
October

Best time: 3 to 4 months before departure (average price: 502 $)

Other interesting period(s): 1 to 2 months ($ 543), 2 to 3 months ($ 564), 4 to 5 months ($ 540), 5 to 6 months ($ 600), 6 to 7 months ($ 602), 7 to 8 months ($ 580), 8 to 9 months ($ 588), 9 to 10 months ($ 558)
November

Best time: 4 to 5 months before departure (average price: 461 $)

Other interesting period(s): 1 to 2 months ($ 496), 2 to 3 months ($ 505), 3 to 4 months ($ 513), 5 to 6 months ($ 484), 6 to 7 months ($ 487), 8 to 9 months ($ 526)
December

Best time: 5 to 6 months before departure (average price: 557 $)

Other interesting period(s): 1 to 2 months ($ 667), 2 to 3 months ($ 614), 3 to 4 months ($ 564), 4 to 5 months ($ 616), 6 to 7 months ($ 594), 7 to 8 months ($ 664), 9 to 10 months ($ 662), 10 to 11 months ($ 703)

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

Created with Highcharts 8.2.2 $ -3 $ -3 $ -1 $ -1 $ +7 $ +7 $ +2 $ +2 $ +5 $ +5 $ +2 $ +2 $ -4 $ -4Average price of plane ticket according to the booking daysundaymondaytuesdaywednesdaythursdayfridaysaturday-6-4-202468

Data analysis:

Statistically, saturday is the day when plane tickets for London->Boston are the cheapest. So, by buying your plane ticket on a saturday, you will save $4. Conversely, by buying it on a tuesday, you may end up paying $7 more.

London to Boston: 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
April 2025$ 709
$400 to $1259		Find a flight
May 2025$ 518
$402 to $818		Find a flight
June 2025$ 708
$502 to $1764		Find a flight
July 2025$ 600
$504 to $756		Find a flight
August 2025$ 833
$632 to $1228		Find a flight
September 2025$ 490
$392 to $558		Find a flight
October 2025$ 558
$431 to $702		Find a flight
November 2025$ 469
$400 to $696		Find a flight
December 2025$ 642
$450 to $924		Find a flight
January 2026$ 528
$373 to $748		Find a flight
February 2026$ 493
$382 to $579		Find a flight
March 2026$ 547
$366 to $1770		Find a flight

Data analysis:

Compared to the average price, may, july, august, september, october, november, december, january and february are cheaper to travel to Boston. So it may be interesting to book now to leave during these months!

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