flight Aircraft
N17421
BOEING 737 MAX 9
Operated by UNITED AIRLINES INC
- Tail number
- N17421
- Type
- B39M
- Mode-S
- A12AC1
Not currently tracked · last seen 1d ago
- Flights observed
- 13
- Avg flight time
- 2h 4m
- Typical route
- SFO → SLC
- Last seen
- 1d ago
Last known area
Recent flights last 13
| Date | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|
| 2026-04-13 | - | Apr 13, 20:30 UTC | Apr 13, 23:40 UTC | 3h 10m |
| 2026-04-13 | - | Apr 13, 16:15 UTC | Apr 13, 18:45 UTC | 2h 30m |
| 2026-04-13 | - | Apr 13, 15:50 UTC | Apr 13, 18:45 UTC | 2h 55m |
| 2026-04-13 | - | Apr 13, 14:30 UTC | Apr 13, 16:15 UTC | 1h 45m |
| 2026-04-13 | SFO → SLC | Apr 13, 08:20 UTC | Apr 13, 08:25 UTC | 5m |
| 2026-04-13 | SFO → SLC | Apr 13, 07:55 UTC | Apr 13, 08:25 UTC | 30m |
| 2026-04-13 | SFO → SLC | Apr 13, 06:22 UTC | Apr 13, 07:34 UTC | 1h 12m |
| 2026-04-13 | SFO → SLC | Apr 13, 07:19 UTC | Apr 13, 08:24 UTC | 1h 5m |
| 2026-04-13 | ORD → PHL | Apr 13, 04:20 UTC | Apr 13, 05:30 UTC | 1h 10m |
| 2026-04-13 | ORD → PHL | Apr 13, 03:55 UTC | Apr 13, 05:30 UTC | 1h 35m |
| 2026-04-13 | ORD → PHL | Apr 13, 00:20 UTC | Apr 13, 04:15 UTC | 3h 55m |
| 2026-04-12 | ORD → PHL | Apr 12, 23:55 UTC | Apr 13, 03:50 UTC | 3h 55m |
| 2026-04-12 | - | Apr 12, 17:15 UTC | Apr 12, 20:15 UTC | 3h 0m |
Specifications
| Registration | N17421 |
| Aircraft type | BOEING 737 MAX 9 (B39M) |
| Operator | UNITED AIRLINES INC |
| Mode-S code | A12AC1 · 50225301 (octal) |
Looking for transponder-level data? View the Mode-S A12AC1 page for country allocation, callsign history, and ADS-B signal details.
N17421 frequently asked
What type of aircraft is N17421?
N17421 is a BOEING 737 MAX 9 (ICAO type code B39M).
Who operates N17421?
N17421 is operated by UNITED AIRLINES INC.
What is the Mode-S transponder code for N17421?
N17421 broadcasts on Mode-S (ICAO 24-bit) address A12AC1 (octal 50225301). View the transponder page.
What route does N17421 typically fly?
N17421 most frequently flies between SFO and SLC based on observed flights.
Where is N17421 right now?
N17421 is not currently being tracked; last seen 1d ago.