flight_takeoff Flight
UAL399
Live map
Recent history last 30
| Date | Aircraft | Route | Takeoff | Landing | Duration | Dep Δ | Arr Δ |
|---|---|---|---|---|---|---|---|
| 2026-07-14 | A2FBEC | - | Jul 14, 11:40 UTC | Jul 14, 11:55 UTC | 15m | - | - |
| 2026-07-13 | A3C3E0 | KEF → IAD | Jul 13, 11:45 UTC | Jul 13, 17:50 UTC | 6h 5m | - | - |
| 2026-07-12 | A0A91F | KEF → IAD | Jul 12, 11:40 UTC | Jul 12, 17:35 UTC | 5h 55m | - | - |
| 2026-07-11 | A05A01 | - | Jul 11, 12:00 UTC | Jul 11, 17:55 UTC | 5h 55m | - | - |
| 2026-07-10 | A11F5A | - | Jul 10, 11:30 UTC | Jul 10, 17:30 UTC | 6h 0m | - | - |
| 2026-07-09 | A16EC2 | KEF → IAD | Jul 9, 11:40 UTC | Jul 9, 18:00 UTC | 6h 20m | - | - |
| 2026-07-08 | A77C11 | KEF → IAD | Jul 8, 11:40 UTC | Jul 8, 17:35 UTC | 5h 55m | - | - |
| 2026-07-07 | A16EC2 | KEF → IAD | Jul 7, 11:35 UTC | Jul 7, 17:15 UTC | 5h 40m | - | - |
| 2026-07-05 | A4DAD4 | - | Jul 5, 12:10 UTC | Jul 5, 12:20 UTC | 10m | - | - |
| 2026-07-05 | A4DAD4 | KEF → IAD | Jul 5, 12:14 UTC | Jul 5, 17:53 UTC | 5h 39m | +44m | -22m |
| 2026-07-04 | A11F9D | YRI → IAD | Jul 4, 16:10 UTC | Jul 4, 18:00 UTC | 1h 50m | - | - |
| 2026-07-04 | A11F9D | - | Jul 4, 11:55 UTC | Jul 4, 16:00 UTC | 4h 5m | - | - |
| 2026-07-03 | A4DAD4 | KEF → IAD | Jul 3, 11:40 UTC | Jul 3, 17:40 UTC | 6h 0m | - | - |
| 2026-07-02 | A4DAD4 | KEF → IAD | Jul 2, 11:50 UTC | Jul 2, 17:40 UTC | 5h 50m | - | - |
| 2026-07-01 | A0A91E | - | Jul 1, 11:35 UTC | Jul 1, 17:15 UTC | 5h 40m | - | - |
| 2026-06-30 | A11F9D | KEF → IAD | Jun 30, 11:35 UTC | Jun 30, 17:05 UTC | 5h 30m | - | - |
| 2026-06-29 | A16EE0 | KEF → IAD | Jun 29, 11:35 UTC | Jun 29, 17:19 UTC | 5h 45m | - | - |
| 2026-06-28 | A0817C | KEF → IAD | Jun 28, 11:55 UTC | Jun 28, 17:44 UTC | 5h 50m | - | - |
| 2026-06-27 | A11F9D | KEF → IAD | Jun 27, 11:49 UTC | Jun 27, 17:44 UTC | 5h 55m | +19m | -3m |
| 2026-06-27 | A11F9D | - | Jun 27, 11:44 UTC | Jun 27, 12:04 UTC | 20m | - | - |
| 2026-06-26 | A0A8DF | KEF → IAD | Jun 26, 11:49 UTC | Jun 26, 17:25 UTC | 5h 36m | +19m | -19m |
| 2026-06-26 | A0A8DF | KEF → IAD | Jun 26, 11:34 UTC | Jun 26, 17:29 UTC | 5h 55m | - | - |
| 2026-06-25 | A0A8DF | - | Jun 25, 11:39 UTC | Jun 25, 17:34 UTC | 5h 55m | - | - |
| 2026-06-24 | A3C3E0 | KEF → IAD | Jun 24, 11:29 UTC | Jun 24, 17:50 UTC | 6h 20m | - | - |
| 2026-06-23 | A05A01 | KEF → IAD | Jun 23, 11:49 UTC | Jun 23, 17:50 UTC | 6h 0m | - | - |
| 2026-06-22 | A146F9 | - | Jun 22, 15:29 UTC | Jun 22, 17:34 UTC | 2h 5m | - | - |
| 2026-06-22 | A146F9 | KEF → IAD | Jun 22, 11:49 UTC | Jun 22, 17:32 UTC | 5h 43m | +19m | on time |
| 2026-06-22 | A146F9 | - | Jun 22, 11:35 UTC | Jun 22, 11:50 UTC | 15m | - | - |
| 2026-06-21 | A11FA3 | - | Jun 21, 11:40 UTC | Jun 21, 16:44 UTC | 5h 5m | - | - |
| 2026-06-21 | A11FA3 | KEF → IAD | Jun 21, 11:49 UTC | Jun 21, 17:31 UTC | 5h 42m | +19m | -6m |
Performance history
- Flights tracked
- 163 showing last 30
- Avg arrival delay
- -10m
- On-time arrival
- 100% 100% on time
- Aircraft used
- 15
Monthly activity 4 months
| Month | Flights tracked |
|---|---|
| July 2026 | 15 |
| June 2026 | 37 |
| May 2026 | 82 |
| April 2026 | 29 |
UAL399 frequently asked
How long is flight UAL399?
Based on observed flights, UAL399 takes on average 4h 47m 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 163 flights under this callsign.
Is flight UAL399 usually on time?
Across recent flights, UAL399 arrives 10 minutes early on average. 100% of flights arrive within 15 minutes of schedule.
What aircraft operates flight UAL399?
UAL399 has been operated by 15 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.