Route tracked
Boston → Londres
Over the last 30 days a Boston → Londres flight costs around €509 (74 price readings). The lowest price recorded so far is €267, across 53 archived deals.
Price over the last 30 days
In short: over the last 30 days the fare on this route moved between €355 and €532. The low point is almost always a pricing error — a fare published by mistake that disappears within hours. Based on our own tracking (Faro, 2026), those windows rarely last more than a day.
From €355 to €532 over the period. The red bar marks the low point.
When to fly cheaper
The most important factor is not the booking day but the departure month. On this route the gap between the cheapest and priciest month often exceeds 40%. The table below draws on 53 genuinely archived deals (Faro, 2026): every row holds at least three observations, and months below that threshold are left out.
The cheapest month observed is February, from €267 (5 deals observed). The priciest is June, averaging €705.
| Month | Deals | Min | Average |
|---|---|---|---|
| February | 5 | 267€ | 560€ |
| June | 3 | 641€ | 705€ |
| August | 4 | 545€ | 620€ |
| September | 10 | 399€ | 567€ |
| October | 10 | 377€ | 509€ |
| November | 10 | 411€ | 548€ |
| December | 6 | 450€ | 537€ |
How often a good price appears
The useful question is not what the price is, but how often it drops. A good fare that shows up twice a year cannot be planned the same way as one that returns monthly. Here is what our tracking shows on this route (Faro, 2026).
We recorded 1 deals at €357 or less on this route, out of 53 archived deals in total.
Live deals on this route
The fares below are ones we detected and verified, with their departure dates. They are not guaranteed: a pricing error can be corrected by the airline at any time, sometimes within the hour. The price shown is the one recorded at detection.
Frequently asked questions
What is a normal price for a Boston → Londres flight?
Over the last 30 days the fare sits around €509 based on 74 readings. Below €408 is a good deal.
When should you book to pay less?
From our readings, February is the cheapest month (from €267) and June the priciest (averaging €705).
Are these prices guaranteed?
No. These are fares we actually observed, often pricing errors that vanish within hours. We show the detection time for every deal.
Other destinations from Boston
Last updated: · based on our own tracking (Faro, 2026)