Washington to Keflavík flights (IAD–KEF)
IADWashington Dulles International Airport
United States
United States
KEFKeflavik International Airport
Iceland
Iceland
Icelandair and United Airlines fly Washington to Keflavík (IAD–KEF) nonstop and back, a great-circle distance of 4,490 km (2,790 mi).
- From
- IAD
- Washington
- To
- KEF
- Keflavík
- Nonstop
- Yes · 2 airlines
- Airlines
- FI · UA
- Distance
- 4,490 km (2,790 mi)
- Time difference
- Keflavík 4 hours ahead
- Most flights
- Icelandair
- Time in the air
- 5h 15m · 5h 55m back
- On time (Touchdown Index)
- 82.5%
- Flights a week
- FI ~6 · UA ~4
- Aircraft seen
- Boeing 737 Max 8 · Boeing 757-200 · Boeing 737 Max 9
Network data imported from airport and airline sources:· How we verify
Washington to Keflavík: frequently asked questions
Tracked flights between 6 September and 3 October 2026, from public ADS-B data.
How long is the IAD–KEF flight?
5h 15m wheels-up to wheels-down, the median of 38 tracked flights; KEF–IAD took 5h 55m.
Which airlines fly IAD–KEF direct?
Icelandair and United Airlines.
What is the time difference between Washington and Keflavík?
Keflavík is 4 hours ahead of Washington: a IAD departure at noon is 16:00 local time in KEF.
Is IAD–KEF usually on time?
82.5% of 80 IAD–KEF flights landed within 15 minutes of their usual time; 2.5% were over an hour late.
How many IAD–KEF flights a week?
Icelandair 6 and United Airlines 4 each way.
What aircraft fly IAD–KEF?
Boeing 737 Max 8, Boeing 757-200 and Boeing 737 Max 9.
Keflavík to Washington: the return flight (KEF–IAD)
All 2 airlines also fly KEF–IAD nonstop.
The return takes 5h 55m in the air (median of 40 tracked flights), 40 minutes longer than IAD–KEF.
Airlines flying IAD–KEF nonstop
| Airline | Usually takes off (IAD time) | Type | Alliance | Notes |
|---|---|---|---|---|
 Icelandair FI | 20:37–23:31 | full-service | — | — |
| United Airlines UA | 01:54–23:12 | full-service | Star Alliance | Seasonal |
One-stop alternatives to flying IAD–KEF nonstop
One airline on both legs; check it's sold as one ticket.
- Via Newark (EWR) with United Airlines: 4,520 km (2,810 mi) flown, 1% further than nonstop.
- Via Detroit (DTW) with
Delta Air Lines: 5,100 km (3,170 mi) flown, 13% further than nonstop. - Via Chicago (ORD) with United Airlines: 5,670 km (3,520 mi) flown, 26% further than nonstop.
IAD–KEF route map
More from Washington and Keflavík
Explore the airlines’ route maps
Departure
Washington Dulles International Airport
Washington Dulles (IAD), Washington. In our data, 47 airlines fly nonstop from IAD to 117 destinations.
View IAD airport guide →Arrival
Keflavik International Airport
2 ways into Keflavík, fastest from 45 min:
- Flybus 45 min–1h · 3,899–4,999 ISK
- Strætó bus 55 1h–1h 20m · 2,400 ISK
Other nonstop airport pairs, Washington to Keflavík
Washington and Keflavík are connected nonstop from more than one airport. Compare the pairs by airline count:
Onward from Keflavík
Places you can't fly to nonstop from IAD, but can from KEF — for a stopover or a second leg.
Related routes
Sources
- en.wikipedia.org — airlines and destinations, checked 2026-10-01
- en.wikipedia.org — airlines and destinations, checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
- en.wikipedia.org — airlines and destinations table (passenger), checked 2026-10-01
Flight tracking: adsb.lol community ADS-B data (CC0), 6 September – 3 October 2026. Times are median wheels-up to wheels-down; add taxiing for gate-to-gate.
Report a change — seen something different at the airport or on the airline's site? We re-check and log corrections publicly.