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Cheapest month to fly
One way, the cheapest fare found for each month. Fares change all the time; the search shows today’s prices.
| Month | From | Airline | Stops | Found |
|---|---|---|---|---|
| November 2026 | £340 | TAP Air Portugal | 2 stops | 13 Nov 2026 |
| December 2026 | £279 | Vueling | 2 stops | 14 Nov 2026 |
| January 2027 | £367 | Vueling | 2 stops | 8 Nov 2026 |
| April 2027 | £344 | Icelandair | 1 stop | 12 Nov 2026 |
| July 2027 | £347 | Lufthansa | 1 stop | 14 Nov 2026 |
| August 2027 | £394 | SWISS | 1 stop | 7 Nov 2026 |
| September 2027 | £348 | Icelandair | 1 stop | 14 Nov 2026 |
Cheapest days in December 2026
| Date | From | Airline | Stops | Found |
|---|---|---|---|---|
| 14 Dec 2026 | £279 | Vueling | 2 stops | 14 Nov 2026 |
| 11 Dec 2026 | £305 | TAP Air Portugal | 1 stop | 12 Nov 2026 |
| 5 Dec 2026 | £321 | Vueling | 2 stops | 12 Nov 2026 |
| 9 Dec 2026 | £332 | TAP Air Portugal | 1 stop | 12 Nov 2026 |
| 8 Dec 2026 | £341 | TAP Air Portugal | 1 stop | 12 Nov 2026 |
| 29 Dec 2026 | £343 | TAP Air Portugal | 2 stops | 8 Nov 2026 |
| 2 Dec 2026 | £346 | Vueling | 2 stops | 12 Nov 2026 |
| 6 Dec 2026 | £362 | TAP Air Portugal | 1 stop | 12 Nov 2026 |
Airlines flying non-stop
jetBlue From £407 one way · found 12 Nov 2026
TAP Air Portugal From £708 one way · found 12 Nov 2026
American Airlines From £742 one way · found 14 Nov 2026
Air France From £974 one way · found 9 Nov 2026
KLM From £993 one way · found 10 Nov 2026
Non-stop flights take about 7 h 35 min.
Lounges at London Heathrow Airport →
Lounges at Boston Logan International →
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How many Avios or miles does this flight earn, and what does it cost in points?
Questions about this route
When is it cheapest to fly from London to Boston?
In our recent data December 2026 is cheapest, from £279 one way. Prices move every day, so check the search for your own dates.
Which airlines fly non-stop from London to Boston?
Recent non-stop fares were found with jetBlue, TAP Air Portugal, American Airlines, Air France and KLM.
How long is the flight from London to Boston?
About 7 h 35 min non-stop.
Fares are the cheapest found recently by travellers, not live quotes, and can change.