Air PortugalTP78% on time
live
Direct flights from Boston (BOS) to Lisbon (LIS): 19 nonstop departures observed each week across 2 airlines. 77% of the last 13 tracked flights arrived within 15 minutes of schedule. The median arrival is 17 minutes early. 1 of the 13 tracked flights was cancelled. The nonstop covers 5,124 km, an estimated 7 hours 4 minutes in the air. Measured by Pro Flight Search from live flight boards at Boston and Lisbon. Updated 11 November 2026 at 20:08 UTC.
Today, BOS → LIS
Wed 11 Nov · local timesChecked BOS board 15:08 · LIS board 20:04
BOS
Boston
smooth · +0
LIS
Lisbon
smooth · +0
5,124 km · ~7h 04m est.
Runs mixed · 2 airlines · 19x weekly · nonstop
77% on time
of the last 13 tracked BOS → LIS flights arrived within 15 minutes
Median arrival delay is −17 min. 1 of 13 tracked legs cancelled in the sample. Will a delayed flight be cancelled? →
Median arrival−17 minacross the last 12 arrivals
Flight time~7h 04mestimated from route distance
Weekly departures19x2 direct airlines on the leg
Cancelled7.7%recent route rate · 1 of 13
The week
scheduled departures · origin local time06121824
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Air PortugalDelta Air Lines
Each mark is a scheduled departure at its origin-local time, observed operating in the last 7 days. Today is highlighted.
Who flies it
observed on the boards · 7 daysDelta Air LinesDL
Flights DL124 varies daily
History
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
Conditions are tightest at BOS and LIS: a 38% chance of a 15+ minute delay. In this weather, the more delayed of the two airports is typically about +3 min. Both figures come from the two airports' delay records in similar weather. See live delays → · Weather risk by airport →
next sweep in 120s
How the Boston to Lisbon route actually runs
Pro Flight Search records official board updates for nonstop BOS to LIS 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 Lisbon (LIS) route reliability, measured from operated flights on official airport boards.
Canonical URL
How we measure this →
https://proflightsearch.com/search-flights/BOS-LIS
BOS to LIS questions
Is BOS–LIS running on time right now?
Mostly on schedule. Both endpoints currently score the same, route health score 79/100. The airports section above carries the live status and delay window at both ends.
Morning or evening flight on BOS–LIS?
Operators schedule evening departures around 18:00 from BOS. Earlier flights typically land before destination-airport delays accumulate later in the day; check the LIS delay card to confirm conditions when you'd arrive.
How long is the flight from BOS to LIS?
Great-circle distance is 5,124 km. With typical jet cruise speed plus taxi, climb and descent, expect roughly 392–469 min gate-to-gate on this route.
How often does BOS–LIS fly?
2 carriers operate this route, around 19 flights a week between them. Compare carrier days and times in the airline list above.
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