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.

Upcoming flights 1 scheduled

From To Scheduled departure Estimated arrival Status
KEF IAD May 30, 11:49 AM UTC May 30, 05:50 PM UTC PLANNED

Route airports View route page →

Departure

KEF BIKF VFR

Keflavik International Airport

Reykjavík, IS

Local time
09:52 GMT
Timezone
Atlantic/Reykjavik
Type
Large Airport
Elevation
171 ft
Coordinates
63.9850, -22.6056

cloud Weather

Wind
30° / 8 kt
Visibility
6 SM
Ceiling
FEW 2,500 ft, SCT 4,400 ft, OVC 6,000 ft
Temp / Dew
7°C / 3°C
Altimeter
29.79 inHg
Wx
-DZ

Obs: 2026-05-30T09:30:00.000Z

Raw METAR / TAF 
METAR BIKF 300930Z 03008KT 9999 -DZ FEW025 SCT044 OVC060 07/03 Q1009

TAF BIKF 300753Z 3009/3109 04008KT 9999 FEW018 BKN040 TX08/3106Z TN06/3009Z TEMPO 3009/3101 RA BKN012 BECMG 3100/3102 12013KT TEMPO 3101/3107 3500 -RADZ BR OVC007

flight Live Traffic

flight_takeoff 15 Departures
flight_land 16 Arrivals

Arrival

IAD KIAD VFR

Washington Dulles International Airport

Dulles, US

Local time
05:52 EDT
Timezone
America/New_York
Type
Large Airport
Elevation
312 ft
Coordinates
38.9445, -77.4558

cloud Weather

Wind
260° / 4 kt
Visibility
10 SM
Ceiling
FEW 25,000 ft
Temp / Dew
19°C / 8°C
Altimeter
29.81 inHg

Obs: 2026-05-30T08:52:00.000Z

Raw METAR / TAF 
METAR KIAD 300852Z 26004KT 10SM FEW250 19/08 A2981 RMK AO2 SLP093 T01890083 55004 $

TAF KIAD 300854Z 3009/3112 26003KT P6SM SKC FM301100 33007G15KT P6SM SKC FM301400 36011G21KT P6SM SKC FM302300 01011KT P6SM SKC FM310100 02006KT P6SM SKC FM310700 35003KT P6SM SKC

flight Live Traffic

flight_takeoff 151 Departures
flight_land 167 Arrivals

Recent history last 30

DateAircraftRouteTakeoffLandingDurationDep ΔArr Δ
2026-05-29 A0A8DA CLE → EWR May 29, 11:25 UTCMay 29, 17:15 UTC5h 50m - -
2026-05-28 A05A03 CLE → EWR May 28, 11:25 UTCMay 28, 17:35 UTC6h 10m - -
2026-05-27 A05A01 CLE → EWR May 27, 11:50 UTCMay 27, 17:50 UTC6h 0m - -
2026-05-26 A0817C CLE → EWR May 26, 11:44 UTCMay 26, 17:44 UTC6h 0m - -
2026-05-25 A05A03 CLE → EWR May 25, 11:20 UTCMay 25, 17:30 UTC6h 10m - -
2026-05-24 A0A900 CLE → EWR May 24, 11:55 UTCMay 24, 17:35 UTC5h 40m - -
2026-05-23 A16EE0 CLE → EWR May 23, 11:45 UTCMay 23, 17:40 UTC5h 55m - -
2026-05-22 A05A01 CLE → EWR May 22, 11:35 UTCMay 22, 17:35 UTC6h 0m - -
2026-05-21 A12AEA CLE → EWR May 21, 01:50 UTCMay 21, 05:20 UTC3h 30m - -
2026-05-20 AB7067 CLE → EWR May 20, 20:45 UTCMay 20, 21:25 UTC40m - -
2026-05-20 A5954E CLE → EWR May 20, 17:30 UTCMay 20, 19:25 UTC1h 55m - -
2026-05-20 A5954E CLE → EWR May 20, 00:30 UTCMay 20, 01:15 UTC45m - -
2026-05-19 A5954E CLE → EWR May 19, 17:15 UTCMay 19, 20:00 UTC2h 45m - -
2026-05-19 A5954E CLE → EWR May 19, 16:59 UTCMay 19, 19:51 UTC2h 52m -509m +4m
2026-05-19 A5D6F9 CLE → EWR May 19, 02:05 UTCMay 19, 05:50 UTC3h 45m - -
2026-05-19 A5D6F9 CLE → EWR May 19, 02:08 UTCMay 19, 05:48 UTC3h 40m +40m +10m
2026-05-18 A61592 CLE → EWR May 18, 18:10 UTCMay 18, 20:30 UTC2h 19m - -
2026-05-18 AA7F05 CLE → EWR May 18, 02:40 UTCMay 18, 06:45 UTC4h 5m - -
2026-05-17 AC0AAC CLE → EWR May 17, 21:10 UTCMay 17, 21:50 UTC40m - -
2026-05-17 A62BDC CLE → EWR May 17, 16:50 UTCMay 17, 18:40 UTC1h 50m - -
2026-05-17 A92362 CLE → EWR May 17, 01:50 UTCMay 17, 05:40 UTC3h 50m - -
2026-05-16 AB5056 CLE → EWR May 16, 20:45 UTCMay 16, 21:25 UTC40m - -
2026-05-16 A52898 CLE → EWR May 16, 16:50 UTCMay 16, 18:55 UTC2h 5m - -
2026-05-16 A12A7B CLE → EWR May 16, 02:30 UTCMay 16, 06:06 UTC3h 36m - -
2026-05-16 A12A7B CLE → EWR May 16, 02:30 UTCMay 16, 06:04 UTC3h 34m +62m +26m
2026-05-15 AC15D1 CLE → EWR May 15, 20:45 UTCMay 15, 21:25 UTC40m - -
2026-05-15 AC15D1 CLE → EWR May 15, 20:47 UTCMay 15, 21:25 UTC38m -281m +13m
2026-05-15 A56DCF CLE → EWR May 15, 16:59 UTCMay 15, 18:35 UTC1h 36m -509m +2m
2026-05-15 A56DCF CLE → EWR May 15, 16:50 UTCMay 15, 18:50 UTC2h 0m - -
2026-05-15 A449A1 CLE → EWR May 15, 02:25 UTCMay 15, 06:05 UTC3h 40m - -

Performance history

Flights tracked
108 showing last 30
Avg arrival delay
+11m
On-time arrival
80% 80% on time
Aircraft used
21

Monthly activity 2 months

Month Flights tracked
May 2026 79
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 3h 18m 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 108 flights under this callsign.
Is flight UAL399 usually on time?
Across recent flights, UAL399 arrives with an average 11-minute delay. 80% of flights arrive within 15 minutes of schedule.
What aircraft operates flight UAL399?
UAL399 has been operated by 21 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.