United AirlinesUA
Flights UA1734 05:45 daily · UA2098 09:30 daily · UA721 14:15 daily · UA3409 17:49 Mo Tu We Th Fr Su
live
Direct flights from Boston (BOS) to Washington (IAD): 7 nonstop departures observed each week across 1 airline. The median arrival is on schedule. No cancellations were recorded across the 4 tracked flights. The nonstop covers 664 km, an estimated 1 hour 21 minutes in the air. Measured by Pro Flight Search from live flight boards at Boston and Washington. Updated 22 October 2026 at 20:10 UTC.
Today, BOS → IAD
Thu 22 Oct · local times- 05:45 UA1734United Left 05:45 Landed 07:18 −2
- 09:30 UA2098United Departed Landed 11:04 −7
- 14:15 UA721United Left 14:15 IAD est. 15:58In the air · sched 15:56
- 17:49 UA3409United On scheduleGate B28 · TB ·
- 19:13 UA2136United On scheduleGate B31 · TB ·
Checked BOS board 16:10 · IAD board 15:18
BOS
Boston
smooth · +0
IAD
Washington
smooth · +0
664 km · ~1h 21m est.
Running clean · 1 airline · 7x weekly · nonstop
100 / 100
route health from live BOS and IAD delay boards
Median arrival delay is +0 min. 0 of 4 tracked legs cancelled in the sample. Will a delayed flight be cancelled? →
Median arrival+0 minacross the last 4 operated legs
Flight time~1h 21mestimated from route distance
Weekly departures7x1 direct airline on the leg
The week
scheduled departures · origin local time06121824
Mon
Tue
Wed
Thu
Fri
Sat
Sun
United Airlines
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 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: 41% 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
How the Boston to Washington route actually runs
Pro Flight Search records official board updates for nonstop BOS to IAD 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 Washington (IAD) route reliability, measured from operated flights on official airport boards.
Canonical URL
How we measure this →
https://proflightsearch.com/search-flights/BOS-IAD
BOS to IAD questions
Is BOS–IAD 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.
Morning or evening flight on BOS–IAD?
Operators schedule morning departures around 05:45 and evening departures around 17:49 from BOS. Earlier flights typically land before destination-airport delays accumulate later in the day; check the IAD delay card to confirm conditions when you'd arrive.
How long is the flight from BOS to IAD?
Great-circle distance is 664 km. With typical jet cruise speed plus taxi, climb and descent, expect roughly 77–87 min gate-to-gate on this route.
How often does BOS–IAD fly?
United Airlines runs the route with about 34 flights a week (daily). Since one carrier owns the route, a single disruption tends to ripple through the day.
.