Departure
Boulder Municipal Airport
Boulder, US
cloud Weather
- Wind
- 0° / 0 kt
- Visibility
- 10 SM
- Ceiling
- CLR
- Temp / Dew
- 21°C / 8°C
- Altimeter
- 30.18 inHg
Obs: 2026-08-28T06:35:00.000Z
Raw METAR
METAR KBDU 280635Z AUTO 00000KT 10SM CLR 21/08 A3018 RMK AO2
flight_takeoff Flight
N421EF
Live map
Route airports View route page →
Arrival
Boulder Municipal Airport
Boulder, US
cloud Weather
- Wind
- 0° / 0 kt
- Visibility
- 10 SM
- Ceiling
- CLR
- Temp / Dew
- 21°C / 8°C
- Altimeter
- 30.18 inHg
Obs: 2026-08-28T06:35:00.000Z
Raw METAR
METAR KBDU 280635Z AUTO 00000KT 10SM CLR 21/08 A3018 RMK AO2
Recent history last 30
| Date | Aircraft | Route | Takeoff | Landing | Duration | Dep Δ | Arr Δ |
|---|---|---|---|---|---|---|---|
| 2026-07-26 | A4FFC0 | WBU → WBU | Jul 26, 16:15 UTC | Jul 26, 17:05 UTC | 50m | - | - |
| 2026-07-25 | A4FFC0 | WBU → WBU | Jul 25, 16:35 UTC | Jul 25, 16:55 UTC | 20m | - | - |
| 2026-07-25 | A4FFC0 | WBU → WBU | Jul 25, 15:40 UTC | Jul 25, 15:55 UTC | 15m | - | - |
| 2026-07-23 | A4FFC0 | WBU → WBU | Jul 23, 17:55 UTC | Jul 23, 18:40 UTC | 45m | - | - |
| 2026-07-23 | A4FFC0 | WBU → WBU | Jul 23, 16:50 UTC | Jul 23, 17:25 UTC | 35m | - | - |
| 2026-07-23 | A4FFC0 | WBU → WBU | Jul 23, 15:40 UTC | Jul 23, 15:55 UTC | 15m | - | - |
| 2026-07-22 | A4FFC0 | WBU → WBU | Jul 22, 18:35 UTC | Jul 22, 19:55 UTC | 1h 20m | - | - |
| 2026-07-22 | A4FFC0 | WBU → WBU | Jul 22, 16:15 UTC | Jul 22, 17:10 UTC | 55m | - | - |
| 2026-07-16 | A4FFC0 | - | Jul 16, 19:10 UTC | Jul 16, 19:50 UTC | 40m | - | - |
| 2026-07-16 | A4FFC0 | WBU → WBU | Jul 16, 16:15 UTC | Jul 16, 16:40 UTC | 25m | - | - |
| 2026-07-15 | A4FFC0 | WBU → WBU | Jul 15, 18:30 UTC | Jul 15, 19:15 UTC | 45m | - | - |
| 2026-07-15 | A4FFC0 | WBU → WBU | Jul 15, 17:20 UTC | Jul 15, 17:30 UTC | 10m | - | - |
| 2026-07-15 | A4FFC0 | WBU → WBU | Jul 15, 15:30 UTC | Jul 15, 16:30 UTC | 1h 0m | - | - |
| 2026-07-13 | A4FFC0 | WBU → WBU | Jul 13, 16:10 UTC | Jul 13, 16:50 UTC | 40m | - | - |
| 2026-07-12 | A4FFC0 | WBU → WBU | Jul 12, 19:01 UTC | Jul 12, 19:10 UTC | 10m | - | - |
| 2026-07-10 | A4FFC0 | WBU → WBU | Jul 10, 16:55 UTC | Jul 10, 18:05 UTC | 1h 10m | - | - |
| 2026-07-09 | A4FFC0 | WBU → WBU | Jul 9, 16:00 UTC | Jul 9, 17:15 UTC | 1h 15m | - | - |
| 2026-07-06 | A4FFC0 | WBU → WBU | Jul 6, 18:15 UTC | Jul 6, 19:50 UTC | 1h 35m | - | - |
| 2026-07-06 | A4FFC0 | WBU → WBU | Jul 6, 16:15 UTC | Jul 6, 17:00 UTC | 45m | - | - |
| 2026-07-05 | A4FFC0 | WBU → WBU | Jul 5, 18:15 UTC | Jul 5, 20:05 UTC | 1h 50m | - | - |
| 2026-07-04 | A4FFC0 | WBU → WBU | Jul 4, 17:05 UTC | Jul 4, 19:15 UTC | 2h 10m | - | - |
| 2026-07-01 | A4FFC0 | WBU → WBU | Jul 1, 18:05 UTC | Jul 1, 19:25 UTC | 1h 20m | - | - |
| 2026-07-01 | A4FFC0 | WBU → WBU | Jul 1, 17:00 UTC | Jul 1, 17:10 UTC | 10m | - | - |
| 2026-07-01 | A4FFC0 | WBU → WBU | Jul 1, 15:35 UTC | Jul 1, 15:50 UTC | 15m | - | - |
| 2026-06-30 | A4FFC0 | WBU → WBU | Jun 30, 18:00 UTC | Jun 30, 20:25 UTC | 2h 25m | - | - |
| 2026-06-28 | A4FFC0 | WBU → WBU | Jun 28, 20:29 UTC | Jun 28, 20:45 UTC | 15m | - | - |
| 2026-06-26 | A4FFC0 | WBU → WBU | Jun 26, 18:44 UTC | Jun 26, 19:09 UTC | 25m | - | - |
| 2026-06-20 | A4FFC0 | WBU → WBU | Jun 20, 17:34 UTC | Jun 20, 17:59 UTC | 25m | - | - |
| 2026-06-18 | A4FFC0 | WBU → WBU | Jun 18, 15:35 UTC | Jun 18, 16:00 UTC | 25m | - | - |
| 2026-06-17 | A4FFC0 | WBU → WBU | Jun 17, 16:40 UTC | Jun 17, 18:10 UTC | 1h 30m | - | - |
Performance history
- Flights tracked
- 85 showing last 30
- Avg arrival delay
- -
- On-time arrival
- -
- Aircraft used
- 1
Monthly activity 4 months
| Month | Flights tracked |
|---|---|
| July 2026 | 24 |
| June 2026 | 20 |
| May 2026 | 29 |
| April 2026 | 12 |
N421EF frequently asked
Where does flight N421EF fly?
N421EF flies from WBU to WBU. View the full route page.
How long is flight N421EF?
Based on observed flights, N421EF takes on average 50m from takeoff to landing.
How often does N421EF fly?
N421EF has been observed flying several times a week in our tracking data. We've recorded 85 flights under this callsign.
Can I track N421EF live?
Yes. When N421EF 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.