Apparatus

Try JFK, AAL1290, BAW, or N225AN.

flight_takeoff Flight

UAL399

Operated by UAL

Live map

Live map filtered to UAL399. Shown when the flight is currently airborne.

Route airports View route page →

Departure

KEF BIKF MVFR

Keflavik International Airport

Reykjavík, IS

Local time
20:58 GMT
Timezone
Atlantic/Reykjavik
Type
Large Airport
Elevation
171 ft
Coordinates
63.9850, -22.6056

cloud Weather

Wind
310° / 9 kt
Visibility
6 SM
Ceiling
BKN 2,400 ft
Temp / Dew
8°C / 4°C
Altimeter
29.94 inHg

Obs: 2026-08-28T20:30:00.000Z

Raw METAR / TAF 
METAR BIKF 282030Z 31009KT 9999 BKN024 08/04 Q1014

TAF BIKF 281956Z 2821/2921 31007KT 9999 BKN022 TX11/2916Z TN05/2906Z

flight Live Traffic

flight_takeoff 13 Departures
flight_land 14 Arrivals

Arrival

IAD KIAD VFR

Washington Dulles International Airport

Dulles, US

Local time
16:58 EDT
Timezone
America/New_York
Type
Large Airport
Elevation
312 ft
Coordinates
38.9445, -77.4558

cloud Weather

Wind
30° / 11 kt
Visibility
10 SM
Ceiling
SCT 4,400 ft, SCT 10,000 ft, BKN 25,000 ft
Temp / Dew
29°C / 19°C
Altimeter
30.01 inHg

Obs: 2026-08-28T20:52:00.000Z

Raw METAR / TAF 
METAR KIAD 282052Z 03011KT 10SM SCT044TCU SCT100 BKN250 29/19 A3001 RMK AO2 SLP159 TCU OHD T02940194 55006 $

TAF KIAD 281742Z 2818/2924 36008KT P6SM FEW025 SCT110 BKN250 FM281900 35007KT P6SM SCT025 SCT100 FM290600 35005KT P6SM SCT070

flight Live Traffic

flight_takeoff 92 Departures
flight_land 158 Arrivals

Recent history last 30

DateAircraftRouteTakeoffLandingDurationDep ΔArr Δ
2026-07-26 A146F9 CLE → EWR Jul 26, 11:40 UTCJul 26, 17:30 UTC5h 50m - -
2026-07-25 A0817F CLE → EWR Jul 25, 11:59 UTCJul 25, 17:33 UTC5h 34m +29m -28m
2026-07-25 A0817F CLE → EWR Jul 25, 11:40 UTCJul 25, 17:40 UTC6h 0m - -
2026-07-24 A77C11 CLE → EWR Jul 24, 11:40 UTCJul 24, 17:45 UTC6h 5m - -
2026-07-23 A8E24D CLE → EWR Jul 23, 12:04 UTCJul 23, 18:21 UTC6h 17m +34m -1m
2026-07-23 A8E24D CLE → EWR Jul 23, 11:55 UTCJul 23, 17:15 UTC5h 20m - -
2026-07-22 A5EF0E - Jul 22, 11:40 UTCJul 22, 17:30 UTC5h 50m - -
2026-07-22 A5EF0E KEF → IAD Jul 22, 11:49 UTCJul 22, 17:50 UTC6h 1m +19m -22m
2026-07-21 A5EF0E - Jul 21, 15:25 UTCJul 21, 18:00 UTC2h 35m - -
2026-07-21 A5EF0E - Jul 21, 11:55 UTCJul 21, 12:10 UTC15m - -
2026-07-21 A5EF0E KEF → IAD Jul 21, 11:59 UTCJul 21, 17:55 UTC5h 56m +29m -17m
2026-07-20 A11F9D KEF → IAD Jul 20, 12:05 UTCJul 20, 17:50 UTC5h 45m - -
2026-07-18 A0A8DA - Jul 18, 11:50 UTCJul 18, 18:25 UTC6h 35m - -
2026-07-18 A0A8DA KEF → IAD Jul 18, 11:54 UTCJul 18, 18:25 UTC6h 31m +24m +23m
2026-07-17 A0A91E - Jul 17, 11:39 UTCJul 17, 17:30 UTC5h 50m - -
2026-07-16 A0A91E KEF → IAD Jul 16, 11:49 UTCJul 16, 17:10 UTC5h 21m +19m on time
2026-07-16 A0A91E - Jul 16, 11:25 UTCJul 16, 11:40 UTC15m - -
2026-07-15 A0817C KEF → IAD Jul 15, 11:49 UTCJul 15, 17:30 UTC5h 41m +19m on time
2026-07-15 A0817C KEF → IAD Jul 15, 11:35 UTCJul 15, 17:35 UTC6h 0m - -
2026-07-14 A2FBEC - Jul 14, 11:40 UTCJul 14, 17:30 UTC5h 50m - -
2026-07-13 A3C3E0 KEF → IAD Jul 13, 11:45 UTCJul 13, 17:50 UTC6h 5m - -
2026-07-12 A0A91F KEF → IAD Jul 12, 11:40 UTCJul 12, 17:35 UTC5h 55m - -
2026-07-11 A05A01 - Jul 11, 12:00 UTCJul 11, 17:55 UTC5h 55m - -
2026-07-10 A11F5A - Jul 10, 11:30 UTCJul 10, 17:30 UTC6h 0m - -
2026-07-09 A16EC2 KEF → IAD Jul 9, 11:40 UTCJul 9, 18:00 UTC6h 20m - -
2026-07-08 A77C11 KEF → IAD Jul 8, 11:40 UTCJul 8, 17:35 UTC5h 55m - -
2026-07-07 A16EC2 KEF → IAD Jul 7, 11:35 UTCJul 7, 17:15 UTC5h 40m - -
2026-07-05 A4DAD4 - Jul 5, 12:10 UTCJul 5, 12:20 UTC10m - -
2026-07-05 A4DAD4 KEF → IAD Jul 5, 12:14 UTCJul 5, 17:53 UTC5h 39m +44m -22m
2026-07-04 A11F9D YRI → IAD Jul 4, 16:10 UTCJul 4, 18:00 UTC1h 50m - -

Performance history

Flights tracked
182 showing last 30
Avg arrival delay
-8m
On-time arrival
88% 88% on time
Aircraft used
16

Monthly activity 4 months

Month Flights tracked
July 2026 34
June 2026 37
May 2026 82
April 2026 29

UAL399 frequently asked

Where does flight UAL399 fly?
UAL399 (UAL) flies from KEF to IAD. View the full route page.
How long is flight UAL399?
Based on observed flights, UAL399 takes on average 5h 6m from takeoff to landing.
How often does UAL399 fly?
UAL399 has been observed flying several times a week in our tracking data. We've recorded 182 flights under this callsign.
Is flight UAL399 usually on time?
Across recent flights, UAL399 arrives 8 minutes early on average. 88% of flights arrive within 15 minutes of schedule.
What aircraft operates flight UAL399?
UAL399 has been operated by 16 different aircraft in our records. Tail numbers are listed in the recent history below.
Can I track UAL399 live?
Yes. When UAL399 is currently airborne, the live tracker map above shows its real-time position from ADS-B broadcasts. If the map is empty, the flight is not currently in the air.