the record · airliner · Boeing 737-9 · flight page

N37440

Last heard yesterday at 10:07 pm, at 13,625 feet, 15 miles west of West Michigan Regional. Nothing newer has come from the network since; it may have landed out of the receivers' hearing.

This page checks the country picture for it every minute while it is open.

Took off —in the air when first heard Yesterday at 9:30 pm

Last heard …still in the air, or beyond the receivers' hearing Yesterday at 10:07 pm

Length: 37 min
Distance: 291 nm (335 miles)
Top altitude: 35,000 ft
Fastest: 489 knots (563 mph)
Positions heard: 18

This flight is the one in progress (or the last one heard, if the aircraft flew beyond the receivers). Times are local to where the aircraft was.

Line colour: altitude Low 10,000 ft 25,000 ft 40,000 ft Start End

Altitude and speed through the flight

Move along the graph to read the altitude and speed at any moment.

Flights in the last 14 days

When	From	To	Length	Distance	Top altitude	Fastest
Yesterday at 9:30 pm to 10:07 pm	in the air when first heard	still in the air, or out of the network's hearing	37 min	291 nm	35,000 ft	489 kt
Yesterday at 8:14 pm to 8:55 pm	Denver International DEN	still in the air, or out of the network's hearing	40 min	278 nm	35,000 ft	488 kt
Yesterday at 5:02 pm to 6:24 pm	Bozeman Yellowstone International BZN	Denver International DEN	1 h 21 min	508 nm	35,000 ft	484 kt
Yesterday at 1:48 pm to 3:12 pm	Denver International DEN	Bozeman Yellowstone International BZN	1 h 23 min	483 nm	30,000 ft	447 kt
Yesterday at 8:44 am to 12:35 pm	Fort Lauderdale/Hollywood International FLL	Denver International DEN	3 h 50 min	1,596 nm	34,000 ft	467 kt
Sunday at 5:16 pm to 8:20 pm	Newark Liberty International EWR	Fort Lauderdale/Hollywood International FLL	3 h 4 min	1,186 nm	34,000 ft	478 kt
Sunday at 12:31 pm to 3:07 pm	in the air when first heard	Newark Liberty International EWR	2 h 35 min	1,108 nm	34,000 ft	481 kt
Saturday at 3:41 pm to 4:02 pm	George Bush Intcntl/Houston Airport IAH	still in the air, or out of the network's hearing	21 min	133 nm	30,775 ft	479 kt
Saturday at 10:18 am to 1:50 pm	Portland International PDX	George Bush Intcntl/Houston Airport IAH	3 h 31 min	1,611 nm	35,000 ft	527 kt
Saturday at 1:06 am to 2:03 am	in the air when first heard	Portland International PDX	57 min	345 nm	38,000 ft	445 kt
Friday at 10:11 pm to 12:45 am	in the air when first heard	still in the air, or out of the network's hearing	2 h 33 min	1,120 nm	38,000 ft	481 kt
Friday at 5:56 pm to 7:55 pm	Denver International DEN	George Bush Intcntl/Houston Airport IAH	1 h 58 min	772 nm	29,000 ft	439 kt
Friday at 1:59 pm to 3:47 pm	in the air when first heard	Denver International DEN	1 h 48 min	766 nm	34,000 ft	470 kt
Friday at 11:15 am to 12:25 pm	in the air when first heard	George Bush Intcntl/Houston Airport IAH	1 h 10 min	457 nm	34,000 ft	443 kt
Friday at 9:21 am to 10:53 am	Newark Liberty International EWR	still in the air, or out of the network's hearing	1 h 32 min	636 nm	34,000 ft	442 kt
Thursday at 8:10 pm to 10:30 pm	in the air when first heard	Newark Liberty International EWR	2 h 19 min	912 nm	39,000 ft	474 kt
Thursday at 12:18 pm to 3:31 pm	Denver International DEN	still in the air, or out of the network's hearing	3 h 12 min	1,622 nm	37,000 ft	536 kt
Thursday at 10:20 am to 10:44 am	in the air when first heard	Denver International DEN	23 min	108 nm	25,700 ft	433 kt
Thursday at 8:58 am to 10:00 am	in the air when first heard	still in the air, or out of the network's hearing	1 h 2 min	475 nm	35,000 ft	471 kt
Wednesday at 9:24 pm to 11:04 pm	Denver International DEN	still in the air, or out of the network's hearing	1 h 40 min	696 nm	36,025 ft	446 kt
Wednesday at 6:47 pm to 7:07 pm	in the air when first heard	Denver International DEN	20 min	80 nm	20,175 ft	333 kt
Tuesday at 8:19 pm to 8:55 pm	in the air when first heard	still in the air, or out of the network's hearing	36 min	286 nm	39,000 ft	482 kt
October 26 at 8:47 am to 9:35 am	in the air when first heard	still in the air, or out of the network's hearing	47 min	345 nm	34,000 ft	456 kt
October 25 at 8:14 pm to 8:50 pm	in the air when first heard	still in the air, or out of the network's hearing	36 min	214 nm	35,000 ft	420 kt
October 24 at 8:04 pm to 8:12 pm	in the air when first heard	still in the air, or out of the network's hearing	8 min	66 nm	36,000 ft	459 kt
October 23 at 8:06 pm to 8:55 pm	Newark Liberty International EWR	still in the air, or out of the network's hearing	48 min	325 nm	36,000 ft	481 kt
October 21 at 8:06 pm to 8:56 pm	in the air when first heard	still in the air, or out of the network's hearing	50 min	356 nm	36,000 ft	435 kt

Show the last 56 days · A flight is a run of positions with no gap longer than twenty minutes; an airport is named when the aircraft was low and within five miles of it at that end.

Positions from the adsb.lol community network (open data). A distance is the sum of the straight lines between the positions heard, so it is a little short of the true track. Positions are kept in full for 7 days and at one point every five minutes after that, for 180 days. Map: OpenFreeMap, OpenMapTiles, OpenStreetMap contributors. For understanding where an aircraft went, not for flying.

The aircraft

Aircraft: Boeing 737-9, built 2026
Kind: Airliner, 48 seats
Operator: United Airlines INC
Registered in: Chicago, IL
Transponder code: A445A4

The full register record, with its history and connections. Find it on the live map and follow it with its trail.