IAD → KEFWashington to Reykjavík

live

Direct flights from Washington (IAD) to Reykjavík (KEF): 7 nonstop departures observed each week across 1 airline. 100% of the last 8 tracked flights arrived within 15 minutes of schedule. The median arrival is 18 minutes early. No cancellations were recorded across the 8 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 28 October 2026 at 20:52 UTC.

IAD Washington smooth · +14
KEF Reykjavík smooth · +0
4,495 km · ~6h 16m est.
dep bank 20:30–23:157x weekly
Runs reliable · 1 airline · 7x weekly · nonstop
100% on time

of the last 8 tracked IAD → KEF flights arrived within 15 minutes

Median arrival delay is −18 min. 0 of 8 tracked legs cancelled in the sample. Will a delayed flight be cancelled? →

Median arrival−18 minacross the last 8 arrivals
Flight time~6h 16mestimated from route distance
Weekly departures7x1 direct airline on the leg

The week

scheduled departures · origin local time
06121824
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Icelandair

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 days
IcelandairFI100% on time

Flights FI644 20:30 daily · FI648 varies We Su

History

operated legs · board outcomes
10-27FI644dep +13 → arr−35
10-26FI644dep +0 → arr−39
10-25FI644dep +6 → arr−26
10-24FI644dep +13 → arr+3
10-23FI644dep +8 → arr−18
10-22FI644dep −2 → arr−43
10-21FI644arrived+2
10-21FI648dep +55 → arr+8

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 +14 min smooth 🌤 mostly cloudy · N 0 kt Full IAD delay board →
KEFReykjavík +0 min smooth 🌤 mostly cloudy · E 12 kt Full KEF delay board →

Weather lens

Current conditions put the pressure at IAD and KEF: 34% odds of a 15+ minute delay and around +4 min expected when it bites, measured from this route's own weather-matched delay history. See live delays → · Weather risk by airport →

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
https://proflightsearch.com/search-flights/IAD-KEF
How we measure this →

IAD to KEF questions

Is IAD–KEF running on time right now?

Smooth skies ahead. The departure side at IAD is the weaker end, route health score 91/100. The airports section above carries the live status and delay window at both ends.

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?

Icelandair runs the route with about 9 flights a week (daily). Since one carrier owns the route, a single disruption tends to ripple through the day.

What does the route health score measure?

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