flight Aircraft
N37440
BOEING 737 MAX 9
Operated by UNITED AIRLINES INC
- Tail number
- N37440
- Type
- B39M
- Mode-S
- A445A4
Airborne now · flying as UAL2129 at 33,000 ft
- Flights observed
- 469 showing last 50
- Avg flight time
- 3h 1m
- Typical route
- SFO → IAH
- Last seen
- Jul 26, 23:00 UTC
Live position
Recent flights last 50
| Date | Route | Takeoff | Landing | Duration |
|---|---|---|---|---|
| 2026-07-26 | EWR → LAS | Jul 26, 22:25 UTC | Jul 26, 23:00 UTC | 35m |
| 2026-07-26 | ORD → PHL | Jul 26, 16:30 UTC | Jul 26, 18:15 UTC | 1h 45m |
| 2026-07-26 | IAH → SFO | Jul 26, 12:55 UTC | Jul 26, 14:25 UTC | 1h 30m |
| 2026-07-26 | EWR → ATL | Jul 26, 03:10 UTC | Jul 26, 06:25 UTC | 3h 15m |
| 2026-07-26 | EWR → ATL | Jul 26, 02:59 UTC | Jul 26, 06:12 UTC | 3h 13m |
| 2026-07-26 | PSP → SFO | Jul 26, 00:05 UTC | Jul 26, 01:50 UTC | 1h 45m |
| 2026-07-25 | SAN → ORD | Jul 25, 20:30 UTC | Jul 25, 22:20 UTC | 1h 50m |
| 2026-07-25 | DEN → SNA | Jul 25, 17:50 UTC | Jul 25, 18:45 UTC | 55m |
| 2026-07-25 | EWR → DEN | Jul 25, 12:40 UTC | Jul 25, 15:55 UTC | 3h 15m |
| 2026-07-24 | SAL → IAH | Jul 24, 22:00 UTC | Jul 25, 00:35 UTC | 2h 35m |
| 2026-07-24 | IAH → SAL | Jul 24, 17:55 UTC | Jul 24, 20:15 UTC | 2h 20m |
| 2026-07-24 | SJU → IAH | Jul 24, 13:10 UTC | Jul 24, 15:25 UTC | 2h 15m |
| 2026-07-24 | SJU → IAH | Jul 24, 11:25 UTC | Jul 24, 11:35 UTC | 10m |
| 2026-07-24 | SFO → IAH | Jul 24, 09:00 UTC | Jul 24, 09:15 UTC | 15m |
| 2026-07-24 | SFO → IAH | Jul 24, 05:15 UTC | Jul 24, 07:25 UTC | 2h 10m |
| 2026-07-24 | SFO → IAH | Jul 24, 05:13 UTC | Jul 24, 09:19 UTC | 4h 6m |
| 2026-07-23 | SFO → IAD | Jul 23, 21:45 UTC | Jul 24, 01:10 UTC | 3h 25m |
| 2026-07-23 | LAS → ORD | Jul 23, 18:35 UTC | Jul 23, 19:30 UTC | 55m |
| 2026-07-23 | DEN → BOS | Jul 23, 11:10 UTC | Jul 23, 15:55 UTC | 4h 45m |
| 2026-07-23 | STT → EWR | Jul 23, 02:55 UTC | Jul 23, 03:50 UTC | 55m |
| 2026-07-22 | - | Jul 22, 22:15 UTC | Jul 22, 23:35 UTC | 1h 20m |
| 2026-07-22 | SDQ → EWR | Jul 22, 20:02 UTC | Jul 22, 23:24 UTC | 3h 22m |
| 2026-07-22 | ORD → SFO | Jul 22, 14:19 UTC | Jul 22, 18:20 UTC | 4h 1m |
| 2026-07-22 | ORD → SFO | Jul 22, 14:50 UTC | Jul 22, 16:05 UTC | 1h 15m |
| 2026-07-21 | IAD → BDL | Jul 21, 20:55 UTC | Jul 22, 01:30 UTC | 4h 35m |
| 2026-07-21 | EWR → FLL | Jul 21, 10:55 UTC | Jul 21, 16:25 UTC | 5h 30m |
| 2026-07-21 | - | Jul 21, 07:35 UTC | Jul 21, 08:55 UTC | 1h 20m |
| 2026-07-21 | - | Jul 21, 05:10 UTC | Jul 21, 05:20 UTC | 10m |
| 2026-07-21 | EWR → SJU | Jul 21, 03:00 UTC | Jul 21, 03:20 UTC | 20m |
| 2026-07-21 | EWR → SJU | Jul 21, 00:05 UTC | Jul 21, 00:45 UTC | 40m |
| 2026-07-20 | CLE → DEN | Jul 20, 17:00 UTC | Jul 20, 21:10 UTC | 4h 10m |
| 2026-07-20 | DEN → SJC | Jul 20, 11:10 UTC | Jul 20, 15:30 UTC | 4h 20m |
| 2026-07-19 | SAV → EWR | Jul 19, 22:50 UTC | Jul 20, 03:20 UTC | 4h 30m |
| 2026-07-19 | EWR → SEA | Jul 19, 15:45 UTC | Jul 19, 21:10 UTC | 5h 25m |
| 2026-07-19 | EWR → IAH | Jul 19, 11:30 UTC | Jul 19, 13:45 UTC | 2h 15m |
| 2026-07-19 | - | Jul 19, 03:15 UTC | Jul 19, 05:45 UTC | 2h 30m |
| 2026-07-17 | EWR → EWR | Jul 17, 23:39 UTC | Jul 18, 13:50 UTC | 14h 11m |
| 2026-07-17 | - | Jul 17, 17:05 UTC | Jul 17, 19:20 UTC | 2h 15m |
| 2026-07-17 | EWR → FLL | Jul 17, 12:55 UTC | Jul 17, 15:20 UTC | 2h 25m |
| 2026-07-17 | - | Jul 17, 00:50 UTC | Jul 17, 03:25 UTC | 2h 35m |
| 2026-07-16 | - | Jul 16, 19:25 UTC | Jul 16, 23:10 UTC | 3h 45m |
| 2026-07-16 | MCO → SFO | Jul 16, 12:34 UTC | Jul 16, 17:30 UTC | 4h 55m |
| 2026-07-16 | - | Jul 16, 06:35 UTC | Jul 16, 11:05 UTC | 4h 30m |
| 2026-07-15 | - | Jul 15, 23:50 UTC | Jul 16, 04:15 UTC | 4h 25m |
| 2026-07-15 | - | Jul 15, 17:50 UTC | Jul 15, 22:20 UTC | 4h 30m |
| 2026-07-14 | - | Jul 14, 22:30 UTC | Jul 15, 01:50 UTC | 3h 19m |
| 2026-07-14 | - | Jul 14, 16:30 UTC | Jul 14, 19:05 UTC | 2h 35m |
| 2026-07-14 | ORD → MIA | Jul 14, 12:25 UTC | Jul 14, 15:05 UTC | 2h 40m |
| 2026-07-14 | FAI → ORD | Jul 14, 05:00 UTC | Jul 14, 10:25 UTC | 5h 25m |
| 2026-07-13 | ORD → FAI | Jul 13, 21:45 UTC | Jul 14, 03:40 UTC | 5h 55m |
Specifications
| Registration | N37440 |
| Aircraft type | BOEING 737 MAX 9 (B39M) |
| Operator | UNITED AIRLINES INC |
| Mode-S code | A445A4 · 51042644 (octal) |
Looking for transponder-level data? View the Mode-S A445A4 page for country allocation, callsign history, and ADS-B signal details.
N37440 frequently asked
What type of aircraft is N37440?
N37440 is a BOEING 737 MAX 9 (ICAO type code B39M).
Who operates N37440?
N37440 is operated by UNITED AIRLINES INC.
What is the Mode-S transponder code for N37440?
N37440 broadcasts on Mode-S (ICAO 24-bit) address A445A4 (octal 51042644). View the transponder page.
What route does N37440 typically fly?
N37440 most frequently flies between SFO and IAH based on observed flights.
Where is N37440 right now?
N37440 is currently airborne flying as UAL2129. Live position is shown on the map above.