Keflavik Airport Informational Guide to Keflavik International Airport - KEF - Non Official

UA399 United Airlines - Flight Status

Below, you can find details about United Airlines flight UA399, which currently operates between the airports of Reykjavik - Keflavik Airport (Airport Code KEF) and Dulles - Washington Dulles International Airport (Airport Code IAD).
This flight data pertains specifically to the flight's details for Friday, May 29, 2026.

UA399 On Time performance:
n/a
It is not possible to calculate the On-Time Performance for this flight accurately due to insufficient or non-representative data, as doing so could lead to misleading conclusions.

Flight Status

UA399 United Airlines to Dulles

Landed - On-time
Flight Status for Friday May 29, 2026

Airline information

United Airlines
United Airlines
Equipment: Boeing 757-200 (winglets) Passenger

Departure

Reykjavik (KEF)
May 29, 2026
Keflavik Airport
Departed at:
11:11
Gate:
D33
Scheduled Departure Time: 11:30

Arrival

Dulles (IAD)
May 29, 2026
Washington Dulles International Airport
Arrived at:
13:15
Terminal:
-
Gate:
C2
Scheduled Arrival Time: 13:55
Baggage: 16
Disclaimer
The information displayed on this website is gathered from third-party providers with a wide reputation on the sector, which in turn obtain the information from the airlines. This data is provided only for informative purposes. www.reykjavik-airport.com assumes no responsibility for loss or damage as a result of relying on information posted here. Please contact your airline to verify flight status.

Additional Information

Which is the frequency of flight UA399?
The flight UA399 is scheduled to flight on daily basis.

Which is the distance of flight UA399?
The distance between the two airports is 4494 kilometers.

Are the departure airport and arrival airport at the same Time Zone?
No, each airport is in a different timezone. The times shown above, are presented in the local time of each respective airport.
Current Time in Reykjavik: 2026-05-29 19:22:29
Current Time in Dulles: 2026-05-29 15:22:29

Alternative Flights

The following airline serve the same route between Reykjavik and Dulles:
Icelandair - Flight Number: FI1. (On Time performance: 85 - Average Delay: 6 minutes)

Punctuality and delays

It is not possible to calculate the On-Time Performance for this flight accurately due to insufficient or non-representative data, as doing so could lead to misleading conclusions.

Delays analyzed by Week: It is not possible to calculate the On-Time Performance for this flight accurately by weekday due to insufficient or non-representative data, as doing so could lead to misleading conclusions
Delays analyzed by Month: It is not possible to calculate the On-Time Performance for this flight accurately by month due to insufficient or non-representative data, as doing so could lead to misleading conclusions

Last Past Flights UA399

Date
Departure
Arrival
Duration
Aircraft
Status
Thursday
28 May
11:22
Reykjavik (KEF)
13:32
Dulles (IAD)
06h 10min
Boeing 757-200
Boeing 757-200
Landed - On-time
Wednesday
27 May
11:30
Reykjavik (KEF)
14:11
Dulles (IAD)
06h 41min
Boeing 757-200
Boeing 757-200
Landed - Delayed
Tuesday
26 May
11:34
Reykjavik (KEF)
13:43
Dulles (IAD)
06h 09min
Boeing 757-200
Boeing 757-200
Landed - On-time
Monday
25 May
11:16
Reykjavik (KEF)
13:28
Dulles (IAD)
06h 12min
Boeing 757-200
Boeing 757-200
Landed - On-time
Sunday
24 May
11:39
Reykjavik (KEF)
13:45
Dulles (IAD)
06h 06min
Boeing 757-200
Boeing 757-200
Landed - On-time
Saturday
23 May
11:28
Reykjavik (KEF)
13:42
Dulles (IAD)
06h 14min
Boeing 757-200
Boeing 757-200
Landed - On-time
Friday
22 May
11:20
Reykjavik (KEF)
13:36
Dulles (IAD)
06h 16min
Boeing 757-200
Boeing 757-200
Landed - On-time