IcelandairFI92% on time
Flights FI644 20:30 daily · FI2 varies Mo Tu · FI648 23:20 Tu We Fr Sa
live
Direct flights from Washington (IAD) to Reykjavík (KEF): 14 nonstop departures observed each week across 2 airlines. 89% of the last 18 operated flights arrived within 15 minutes of schedule. The median arrival is 3 minutes early. No cancellations were recorded across the 18 tracked flights. The nonstop covers 4,495 km, an estimated 6 hours 16 minutes in the air. Measured by Pro Flight Search from live flight boards at Washington and Reykjavík. Updated 10 September 2026 at 09:23 UTC.
IAD
Washington
busy · +22
KEF
Reykjavík
smooth · +0
4,495 km · ~6h 16m est.
Runs reliable · 2 airlines · 14x weekly · nonstop
89% on time
of the last 18 operated IAD → KEF flights arrived within 15 minutes
Median arrival delay is −3 min. 0 of 18 tracked legs cancelled in the sample. Will a delayed flight be cancelled? →
Median arrival−3 minacross the last 18 operated legs
Flight time~6h 16mestimated from route distance
Weekly departures14x2 direct airlines on the leg
Cancelled0.0%recent route rate · 0 of 18
The week
scheduled departures · origin local time06121824
Mon
Tue
Wed
Thu
Fri
Sat
Sun
IcelandairUnited 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 daysUnited AirlinesUA83% on time
Flights UA398 22:35 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
Current conditions put the pressure at KEF: 46% odds of a 15+ minute delay and around +13 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 Washington to Reykjavík route actually runs
Pro Flight Search records official board updates for nonstop IAD to KEF 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 Reykjavík (KEF) route reliability, measured from operated flights on official airport boards.
Canonical URL
How we measure this →
https://proflightsearch.com/search-flights/IAD-KEF
IAD to KEF questions
Is IAD–KEF running on time right now?
Some delays possible. The departure side at IAD is the weaker end, route health score 67/100. The airports section above carries the live status and delay window at both ends.
Morning or evening flight on IAD–KEF?
Operators schedule evening departures around 20:30 from IAD. Earlier flights typically land before destination-airport delays accumulate later in the day; check the KEF delay card to confirm conditions when you'd arrive.
How long is the flight from IAD to KEF?
Great-circle distance is 4,495 km. With typical jet cruise speed plus taxi, climb and descent, expect roughly 347–415 min gate-to-gate on this route.
How often does IAD–KEF fly?
2 carriers operate this route, around 20 flights a week between them. Compare carrier days and times in the airline list above.
.