Left LHR at 10:56, 51 min after its 10:05 slot.
- Landing
- 13:19BOS board estimate · sched 12:30
Direct flights from London (LHR) to Boston (BOS): 35 nonstop departures observed each week across 5 airlines. 38% of the last 8 operated flights arrived within 15 minutes of schedule. The median arrival is 19 minutes late. 1 of the 8 tracked flights was cancelled. The nonstop covers 5,239 km, an estimated 7 hours 13 minutes in the air. Measured by Pro Flight Search from live flight boards at London and Boston. Updated 18 October 2026 at 21:43 UTC.
Left LHR at 10:56, 51 min after its 10:05 slot.
Left LHR at 15:23, 58 min after its 14:25 slot.
Checked LHR board 22:25 · BOS board 17:43
of the last 8 operated LHR → BOS flights arrived within 15 minutes
Median arrival delay is +19 min. 1 of 8 tracked legs cancelled in the sample. Will a delayed flight be cancelled? →
Each mark is a scheduled departure at its origin-local time, observed operating in the last 7 days. Today is highlighted.
Flights AA109 10:05 daily
Flights BA1213 14:30 Mo Th Fr Sa Su · BA213 varies Tu We Th Fr Sa Su · BA203 17:35 daily · BA239 20:10 daily
Flights DL59 09:40 daily
Flights B61621 08:40 daily
Flights VS157 16:05 daily
Actual board outcomes rather than schedules, paired departure and arrival per flight and day.
Current conditions put the pressure at BOS: 38% odds of a 15+ minute delay and around +9 min expected when it bites, measured from this route's own weather-matched delay history. See live delays → · Weather risk by airport →
next sweep in 120s
Pro Flight Search records official board updates for nonstop LHR to BOS flights through the day: schedules, estimates, gate pushes and actual departures. The verdict above comes from operated flights, so it reflects what this route does rather than what the timetable promises.
Planning around a delay? Live airport delays · Weather delay risk map · Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
Journalists, bloggers, and researchers may cite this page with attribution and a link to Pro Flight Search.
Pro Flight Search — London (LHR) to Boston (BOS) route reliability, measured from operated flights on official airport boards.
https://proflightsearch.com/search-flights/LHR-BOS
Smooth skies ahead. The departure side at LHR is the weaker end, route health score 83/100. The airports section above carries the live status and delay window at both ends.
Operators schedule morning departures around 08:40 and evening departures around 17:35 from LHR. Earlier flights typically land before destination-airport delays accumulate later in the day; check the BOS delay card to confirm conditions when you'd arrive.
Great-circle distance is 5,239 km. With typical jet cruise speed plus taxi, climb and descent, expect roughly 400–479 min gate-to-gate on this route.
5 carriers operate this route, around 53 flights a week between them. Compare carrier days and times in the airline list above.