Apparatus

Try JFK, AAL1290, BAW, or N225AN.

flight Aircraft

N79521

BOEING 737-800

Operated by UNITED AIRLINES INC

Tail number
N79521
Type
B738
Mode-S
AACD50
Not currently tracked · last seen 2h ago
Flights observed
426 showing last 50
Avg flight time
2h 17m
Typical route
STL → DEN
Last seen
2h ago

Last known area

Map centered near N79521's most recent activity.

Recent flights last 50

DateRouteTakeoffLandingDuration
2026-07-14 - Jul 14, 01:45 UTCJul 14, 02:00 UTC15m
2026-07-13 DEN → YYC Jul 13, 21:55 UTCJul 13, 23:50 UTC1h 55m
2026-07-13 - Jul 13, 18:40 UTCJul 13, 19:55 UTC1h 15m
2026-07-13 - Jul 13, 16:00 UTCJul 13, 17:15 UTC1h 15m
2026-07-13 - Jul 13, 12:40 UTCJul 13, 14:15 UTC1h 35m
2026-07-13 - Jul 13, 01:50 UTCJul 13, 03:20 UTC1h 30m
2026-07-12 STL → DEN Jul 12, 22:00 UTCJul 12, 23:40 UTC1h 40m
2026-07-12 STL → DEN Jul 12, 22:00 UTCJul 12, 23:39 UTC1h 39m
2026-07-12 ORD → STL Jul 12, 20:13 UTCJul 12, 20:46 UTC33m
2026-07-12 ORD → STL Jul 12, 20:05 UTCJul 12, 20:50 UTC45m
2026-07-11 - Jul 11, 21:30 UTCJul 12, 01:20 UTC3h 50m
2026-07-11 BWI → ORD Jul 11, 21:15 UTCJul 12, 00:57 UTC3h 42m
2026-07-11 - Jul 11, 15:10 UTCJul 11, 19:05 UTC3h 55m
2026-07-11 - Jul 11, 11:40 UTCJul 11, 12:40 UTC1h 0m
2026-07-11 ORD → CVG Jul 11, 03:05 UTCJul 11, 03:50 UTC45m
2026-07-10 SEA → ORD Jul 10, 21:40 UTCJul 11, 01:15 UTC3h 35m
2026-07-10 - Jul 10, 15:20 UTCJul 10, 19:30 UTC4h 10m
2026-07-10 - Jul 10, 11:25 UTCJul 10, 13:35 UTC2h 10m
2026-07-10 - Jul 10, 01:50 UTCJul 10, 04:00 UTC2h 10m
2026-07-10 IAH → CMH Jul 10, 01:49 UTCJul 10, 03:58 UTC2h 9m
2026-07-09 - Jul 9, 23:55 UTCJul 10, 00:15 UTC20m
2026-07-09 - Jul 9, 21:55 UTCJul 9, 22:05 UTC10m
2026-07-09 - Jul 9, 20:05 UTCJul 9, 20:15 UTC10m
2026-07-09 - Jul 9, 17:55 UTCJul 9, 18:15 UTC20m
2026-07-09 IAH → GUA Jul 9, 17:56 UTCJul 9, 20:15 UTC2h 19m
2026-07-09 GDL → IAH Jul 9, 13:01 UTCJul 9, 14:39 UTC1h 38m
2026-07-09 - Jul 9, 01:30 UTCJul 9, 14:45 UTC13h 15m
2026-07-08 - Jul 8, 21:20 UTCJul 8, 23:30 UTC2h 10m
2026-07-08 - Jul 8, 16:00 UTCJul 8, 19:30 UTC3h 30m
2026-07-08 YYC → DEN Jul 8, 12:22 UTCJul 8, 14:02 UTC1h 40m
2026-07-08 YYC → DEN Jul 8, 12:10 UTCJul 8, 14:05 UTC1h 55m
2026-07-08 DEN → YYC Jul 8, 02:20 UTCJul 8, 04:15 UTC1h 55m
2026-07-07 - Jul 7, 21:30 UTCJul 8, 00:15 UTC2h 45m
2026-07-07 PNS → DEN Jul 7, 21:17 UTCJul 8, 00:10 UTC2h 53m
2026-07-07 DEN → PNS Jul 7, 16:50 UTCJul 7, 19:15 UTC2h 25m
2026-07-07 DEN → PNS Jul 7, 16:41 UTCJul 7, 19:11 UTC2h 30m
2026-07-07 - Jul 7, 12:10 UTCJul 7, 14:10 UTC2h 0m
2026-07-07 SNA → ORD Jul 7, 02:05 UTCJul 7, 04:15 UTC2h 10m
2026-07-06 STL → DEN Jul 6, 22:00 UTCJul 6, 23:50 UTC1h 50m
2026-07-06 ORD → STL Jul 6, 19:35 UTCJul 6, 20:20 UTC45m
2026-07-06 PDX → ORD Jul 6, 14:10 UTCJul 6, 17:45 UTC3h 35m
2026-07-05 - Jul 5, 18:55 UTCJul 5, 22:45 UTC3h 50m
2026-07-05 - Jul 5, 14:20 UTCJul 5, 15:15 UTC55m
2026-07-05 - Jul 5, 02:20 UTCJul 5, 03:20 UTC1h 0m
2026-07-04 YVR → ORD Jul 4, 21:20 UTCJul 5, 00:50 UTC3h 30m
2026-07-04 - Jul 4, 15:05 UTCJul 4, 19:25 UTC4h 20m
2026-07-04 - Jul 4, 10:10 UTCJul 4, 13:10 UTC3h 0m
2026-07-03 - Jul 3, 23:55 UTCJul 4, 03:15 UTC3h 20m
2026-07-03 - Jul 3, 18:55 UTCJul 3, 20:55 UTC2h 0m
2026-07-03 - Jul 3, 14:50 UTCJul 3, 16:50 UTC2h 0m

Specifications

Registration N79521
Aircraft type BOEING 737-800 (B738)
Operator UNITED AIRLINES INC
Mode-S code AACD50 · 52546520 (octal)

Looking for transponder-level data? View the Mode-S AACD50 page for country allocation, callsign history, and ADS-B signal details.

N79521 frequently asked

What type of aircraft is N79521?
N79521 is a BOEING 737-800 (ICAO type code B738).
Who operates N79521?
N79521 is operated by UNITED AIRLINES INC.
What is the Mode-S transponder code for N79521?
N79521 broadcasts on Mode-S (ICAO 24-bit) address AACD50 (octal 52546520). View the transponder page.
What route does N79521 typically fly?
N79521 most frequently flies between STL and DEN based on observed flights.
Where is N79521 right now?
N79521 is not currently being tracked; last seen 2h ago.