Aer LingusEI
Flights EI5852 varies daily
live
Direct flights from Boston (BOS) to Madrid (MAD): 35 nonstop departures observed each week across 5 airlines. 48% of the last 21 tracked flights arrived within 15 minutes of schedule. The median arrival is 39 minutes late. No cancellations were recorded across the 21 tracked flights. The nonstop covers 5,474 km, an estimated 7 hours 31 minutes in the air. Measured by Pro Flight Search from live flight boards at Boston and Madrid. Updated 3 November 2026 at 18:09 UTC.
Today, BOS → MAD
Tue 3 Nov · local times- 19:15 IB346Iberia On scheduleGate E15 · TE ·
- · AA8849American Airlines Departed Landed 08:44 +39
- · AY5370Finnair Departed Landed 08:44 +39
- · BA4200British Airways Departed Landed 08:44 +39
- · EI5852Aer Lingus Departed Landed 08:44 +39
Checked BOS board 13:09 · MAD board 19:12
BOS
Boston
smooth · +0
MAD
Madrid
smooth · +0
5,474 km · ~7h 31m est.
Runs rough · 5 airlines · 35x weekly · nonstop
48% on time
of the last 21 tracked BOS → MAD flights arrived within 15 minutes
Median arrival delay is +39 min. 0 of 21 tracked legs cancelled in the sample. Will a delayed flight be cancelled? →
Median arrival+39 minacross the last 21 arrivals
Flight time~7h 31mestimated from route distance
Weekly departures35x5 direct airlines on the leg
Cancelled0.0%recent route rate · 0 of 21
Who flies it
observed on the boards · 7 daysAmerican AirlinesAA
Flights AA8849 varies daily
British AirwaysBA
Flights BA4200 varies daily
FinnairAY
Flights AY5370 varies daily
IberiaIB40% on time
Flights IB346 varies daily
History
operated legs · board outcomes11-03AA8849arrived+39
11-03AY5370arrived+39
11-03BA4200arrived+39
11-03EI5852arrived+39
11-01AA8849arrived+14
11-01AY5370arrived+14
11-01BA4200arrived+14
11-01EI5852arrived+14
10-31AA8849arrived+68
10-31AY5370arrived+68
10-31BA4200arrived+68
10-31EI5852arrived+68
10-30AA8849arrived+6
10-30AY5370arrived+6
10-30BA4200arrived+6
10-30EI5852arrived+6
Actual 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: a 37% chance of a 15+ minute delay. In this weather, the more delayed of the two airports is typically about +5 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 Madrid route actually runs
Pro Flight Search records official board updates for nonstop BOS to MAD 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 Madrid (MAD) route reliability, measured from operated flights on official airport boards.
Canonical URL
How we measure this →
https://proflightsearch.com/search-flights/BOS-MAD
BOS to MAD questions
Is BOS–MAD running on time right now?
Smooth skies ahead. Both endpoints currently score the same, route health score 100/100. The airports section above carries the live status and delay window at both ends.
How long is the flight from BOS to MAD?
Great-circle distance is 5,474 km. With typical jet cruise speed plus taxi, climb and descent, expect roughly 416–499 min gate-to-gate on this route.
How often does BOS–MAD fly?
5 carriers operate this route, around 35 flights a week between them. Compare carrier days and times in the airline list above.
What does the route health score measure?
A blend of departure-side delay at BOS and arrival-side delay at MAD, 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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