IAD → ACKWashington to Nantucket

live

Direct flights from Washington (IAD) to Nantucket (ACK) run nonstop between the two airports. No cancellations were recorded across the 3 tracked flights. The nonstop covers 679 km, an estimated 1 hour 22 minutes in the air. Measured by Pro Flight Search from live flight boards at Washington and Nantucket. Updated 25 October 2026 at 14:18 UTC.

IAD Washington smooth · +9
ACK Nantucket tracking
679 km · ~1h 22m est.
Running clean · 0 airlines · nonstop
86 / 100

route health from live IAD and ACK delay boards

0 of 3 tracked legs cancelled in the sample. Will a delayed flight be cancelled? →

Flight time~1h 22mestimated from route distance

History

operated legs · board outcomes
10-25WMN603departed+0
10-231I134departed−8
10-221I645departed+10

Actual board outcomes rather than schedules, paired departure and arrival per flight and day.

Full board history, day by day →

Airports right now

live boards
IADWashington +9 min smooth 🌤 few clouds · 4 kt Full IAD delay board →
ACKNantucket tracking Full ACK delay board →

How the Washington to Nantucket route actually runs

Pro Flight Search records official board updates for nonstop IAD to ACK 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: Washington (IAD) to Nantucket (ACK) route reliability, measured from operated flights on official airport boards.

Canonical URL
https://proflightsearch.com/search-flights/IAD-ACK
How we measure this →

IAD to ACK questions

Is IAD–ACK running on time right now?

Smooth skies ahead. The departure side at IAD is the weaker end, route health score 86/100. The airports section above carries the live status and delay window at both ends.

How long is the flight from IAD to ACK?

Great-circle distance is 679 km. With typical jet cruise speed plus taxi, climb and descent, expect roughly 78–88 min gate-to-gate on this route.

What does the route health score measure?

A blend of departure-side delay at IAD and arrival-side delay at ACK, 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.