flight Aircraft
N17421
BOEING 737 MAX 9
Operated by UNITED AIRLINES INC
- Tail number
- N17421
- Type
- B39M
- Mode-S
- A12AC1
Airborne now · flying as UAL2353 at 37,000 ft
- Flights observed
- 207 showing last 50
- Avg flight time
- 4h 16m
- Typical route
- EWR → ATL
- Last seen
- 2h ago
Live position
Recent flights last 50
| Date | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|
| 2026-05-29 | IAH → POS | May 29, 22:20 UTC | May 30, 00:15 UTC | 1h 55m |
| 2026-05-29 | TPA → EWR | May 29, 17:15 UTC | May 29, 20:05 UTC | 2h 50m |
| 2026-05-29 | ORD → MCI | May 29, 13:00 UTC | May 29, 15:55 UTC | 2h 55m |
| 2026-05-28 | IAH → POS | May 28, 22:20 UTC | May 29, 10:20 UTC | 12h 0m |
| 2026-05-28 | IAD → SFO | May 28, 17:35 UTC | May 28, 20:30 UTC | 2h 55m |
| 2026-05-28 | PHL → SFO | May 28, 12:50 UTC | May 28, 15:55 UTC | 3h 5m |
| 2026-05-28 | BZN → DEN | May 28, 08:10 UTC | May 28, 10:55 UTC | 2h 45m |
| 2026-05-28 | EWR → IAH | May 28, 03:30 UTC | May 28, 06:25 UTC | 2h 55m |
| 2026-05-28 | EWR → IAH | May 28, 03:21 UTC | May 28, 06:22 UTC | 3h 1m |
| 2026-05-27 | EWR → SLC | May 27, 15:10 UTC | May 28, 00:40 UTC | 9h 30m |
| 2026-05-27 | SAL → EWR | May 27, 06:49 UTC | May 27, 09:25 UTC | 2h 36m |
| 2026-05-27 | SAL → EWR | May 27, 05:19 UTC | May 27, 05:29 UTC | 10m |
| 2026-05-26 | EWR → SAL | May 26, 22:54 UTC | May 27, 03:04 UTC | 4h 10m |
| 2026-05-26 | PTY → EWR | May 26, 15:45 UTC | May 26, 19:30 UTC | 3h 45m |
| 2026-05-25 | PTY → EWR | May 25, 22:19 UTC | May 26, 19:30 UTC | 21h 10m |
| 2026-05-25 | PTY → EWR | May 25, 20:19 UTC | May 26, 19:30 UTC | 23h 10m |
| 2026-05-25 | EWR → PTY | May 25, 20:04 UTC | May 26, 18:14 UTC | 22h 10m |
| 2026-05-25 | LAX → BOS | May 25, 15:35 UTC | May 25, 18:25 UTC | 2h 50m |
| 2026-05-25 | IAH → YYC | May 25, 12:10 UTC | May 25, 13:30 UTC | 1h 20m |
| 2026-05-25 | OGG → SFO | May 25, 02:05 UTC | May 25, 03:00 UTC | 55m |
| 2026-05-24 | LAS → LAX | May 24, 23:00 UTC | May 24, 23:46 UTC | 46m |
| 2026-05-24 | EWR → MSY | May 24, 20:00 UTC | May 24, 21:30 UTC | 1h 30m |
| 2026-05-24 | EWR → MSY | May 24, 20:02 UTC | May 24, 21:28 UTC | 1h 26m |
| 2026-05-24 | MIA → EWR | May 24, 15:30 UTC | May 24, 18:00 UTC | 2h 30m |
| 2026-05-24 | IAH → EWR | May 24, 00:10 UTC | May 24, 02:50 UTC | 2h 40m |
| 2026-05-23 | EWR → ATL | May 23, 19:30 UTC | May 23, 22:20 UTC | 2h 50m |
| 2026-05-23 | PHL → IAH | May 23, 16:40 UTC | May 23, 17:20 UTC | 40m |
| 2026-05-23 | PHL → IAH | May 23, 16:45 UTC | May 23, 17:16 UTC | 31m |
| 2026-05-23 | HNL → IAD | May 23, 06:25 UTC | May 23, 07:10 UTC | 45m |
| 2026-05-22 | EWR → ATL | May 22, 23:51 UTC | May 23, 04:31 UTC | 4h 40m |
| 2026-05-22 | EWR → ATL | May 22, 23:40 UTC | May 23, 04:25 UTC | 4h 45m |
| 2026-05-22 | LAX → MCO | May 22, 17:50 UTC | May 22, 22:05 UTC | 4h 15m |
| 2026-05-22 | LAX → MCO | May 22, 17:43 UTC | May 22, 22:03 UTC | 4h 20m |
| 2026-05-22 | EWR → ATL | May 22, 11:15 UTC | May 22, 15:50 UTC | 4h 35m |
| 2026-05-22 | IAD → MCO | May 22, 03:15 UTC | May 22, 04:55 UTC | 1h 40m |
| 2026-05-21 | LGA → IAH | May 21, 19:45 UTC | May 21, 23:30 UTC | 3h 45m |
| 2026-05-21 | EWR → SFO | May 21, 13:10 UTC | May 21, 16:50 UTC | 3h 40m |
| 2026-05-21 | EWR → SFO | May 21, 13:08 UTC | May 21, 17:08 UTC | 4h 0m |
| 2026-05-21 | EWR → BNA | May 21, 06:35 UTC | May 21, 11:10 UTC | 4h 35m |
| 2026-05-20 | BOS → SFO | May 20, 22:40 UTC | May 21, 04:50 UTC | 6h 10m |
| 2026-05-20 | SFO → AUS | May 20, 15:25 UTC | May 20, 20:20 UTC | 4h 55m |
| 2026-05-19 | SJC → DEN | May 19, 23:15 UTC | May 19, 23:55 UTC | 40m |
| 2026-05-19 | DEN → IAH | May 19, 16:25 UTC | May 19, 21:40 UTC | 5h 15m |
| 2026-05-19 | SDQ → EWR | May 19, 12:45 UTC | May 19, 13:40 UTC | 55m |
| 2026-05-19 | EWR → SDQ | May 19, 00:05 UTC | May 19, 00:40 UTC | 35m |
| 2026-05-18 | EWR → SDQ | May 18, 23:59 UTC | May 19, 03:26 UTC | 3h 27m |
| 2026-05-18 | ORD → SFO | May 18, 18:15 UTC | May 18, 21:55 UTC | 3h 39m |
| 2026-05-18 | SNA → IAH | May 18, 13:30 UTC | May 18, 15:20 UTC | 1h 50m |
| 2026-05-18 | IAH → BOS | May 18, 09:25 UTC | May 18, 11:50 UTC | 2h 25m |
| 2026-05-18 | CLT → EWR | May 18, 04:00 UTC | May 18, 07:45 UTC | 3h 45m |
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 EWR and ATL based on observed flights.
Where is N17421 right now?
N17421 is currently airborne flying as UAL2353. Live position is shown on the map above.