United AirlinesUA
Flights UA4270 varies Th Fr
live
Direct flights from Boston (BOS) to Manchester (MHT): 2 nonstop departures observed each week across 1 airline. The median arrival is 129 minutes late. No cancellations were recorded across the 1 tracked flight. The nonstop covers 72 km, an estimated 36 minutes in the air. Measured by Pro Flight Search from live flight boards at Boston and Manchester. Updated 8 September 2026 at 10:48 UTC.
BOS
Boston
heavy · +34
MHT
Manchester
smooth · +0
72 km · ~0h 36m est.
Running clean · 1 airline · 2x weekly · nonstop
77 / 100
route health from live BOS and MHT delay boards
Median arrival delay is +129 min. 0 of 1 tracked legs cancelled in the sample. Will a delayed flight be cancelled? →
Median arrival+129 minacross the last 1 operated legs
Flight time~0h 36mestimated from route distance
Weekly departures2x1 direct airline on the leg
Who flies it
observed on the boards · 7 daysHistory
operated legs · board outcomesActual board outcomes rather than schedules, paired departure and arrival per flight and day.
Full board history, day by day →
Airports right now
live boardsWeather lens
Current conditions put the pressure at BOS and MHT: 44% odds of a 15+ minute delay and around +8 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
How the Boston to Manchester route actually runs
Pro Flight Search records official board updates for nonstop BOS to MHT 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
Cite this data
Journalists, bloggers, and researchers may cite this page with attribution and a link to Pro Flight Search.
Suggested citation
Pro Flight Search — Boston (BOS) to Manchester (MHT) route reliability, measured from operated flights on official airport boards.
Canonical URL
How we measure this →
https://proflightsearch.com/search-flights/BOS-MHT
BOS to MHT questions
Is BOS–MHT running on time right now?
Mostly on schedule. The departure side at BOS is the weaker end, route health score 77/100. The airports section above carries the live status and delay window at both ends.
How long is the flight from BOS to MHT?
Great-circle distance is 72 km. With typical jet cruise speed plus taxi, climb and descent, expect roughly 35–36 min gate-to-gate on this route.
How often does BOS–MHT fly?
United Airlines runs the route with about 2 flights a week (thu, fri). Since one carrier owns the route, a single disruption tends to ripple through the day.
What does the route health score measure?
A blend of departure-side delay at BOS and arrival-side delay at MHT, computed from rolling delay windows (refreshed every 40 minutes) with a daily-rollup fallback. Current MVFR, IFR, or LIFR endpoint weather caps the score when flight rules can limit throughput. Higher is healthier: 100 means operations are clean at both ends.
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