the record · airliner · Boeing 737-800 · flight page

N77542 flying as UAL2103

Level at 35,000 feet, heading east-northeast at 467 knots (537 mph).

Position from the receiver network, 6 seconds ago; local time 3:14 pm CST (21:14 UTC). This page checks for a newer position every half minute while it is open.

Took off —in the air when first heard Today at 3:04 pm

Last heard …still in the air, or beyond the receivers' hearing Today at 3:14 pm

Length: 9 min
Distance: 76 nm (87 miles)
Top altitude: 35,000 ft
Fastest: 468 knots (539 mph)
Positions heard: 6

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
Today at 3:04 pm to 3:14 pm	in the air when first heard	still in the air, or out of the network's hearing	9 min	76 nm	35,000 ft	468 kt
Today at 9:54 am to 10:47 am	in the air when first heard	still in the air, or out of the network's hearing	53 min	372 nm	30,000 ft	471 kt
Today at 6:15 am to 7:20 am	in the air when first heard	still in the air, or out of the network's hearing	1 h 5 min	434 nm	38,000 ft	432 kt
Today at 5:12 am to 5:53 am	in the air when first heard	still in the air, or out of the network's hearing	40 min	288 nm	36,000 ft	454 kt
Yesterday at 8:31 pm to 9:11 pm	in the air when first heard	Raleigh-Durham International RDU	39 min	226 nm	33,300 ft	466 kt
Yesterday at 6:56 pm to 8:03 pm	George Bush Intcntl/Houston Airport IAH	still in the air, or out of the network's hearing	1 h 6 min	499 nm	37,000 ft	505 kt
Yesterday at 1:06 pm to 4:21 pm	Laguardia Airport LGA	George Bush Intcntl/Houston Airport IAH	3 h 14 min	1,273 nm	38,000 ft	499 kt
Yesterday at 9:54 am to 11:28 am	in the air when first heard	Laguardia Airport LGA	1 h 33 min	634 nm	38,000 ft	487 kt
Yesterday at 8:23 am to 9:31 am	in the air when first heard	still in the air, or out of the network's hearing	1 h 8 min	504 nm	37,000 ft	489 kt
Yesterday at 4:13 am to 4:48 am	in the air when first heard	George Bush Intcntl/Houston Airport IAH	34 min	201 nm	36,000 ft	453 kt
Sunday at 1:08 pm to 1:35 pm	in the air when first heard	still in the air, or out of the network's hearing	26 min	206 nm	37,000 ft	524 kt
Sunday at 8:13 am to 10:48 am	in the air when first heard	George Bush Intcntl/Houston Airport IAH	2 h 35 min	1,045 nm	30,025 ft	474 kt
Saturday at 6:13 pm to 8:12 pm	in the air when first heard	still in the air, or out of the network's hearing	1 h 59 min	903 nm	39,000 ft	498 kt
Saturday at 3:42 pm to 4:34 pm	in the air when first heard	George Bush Intcntl/Houston Airport IAH	52 min	344 nm	41,000 ft	486 kt
Saturday at 11:18 am to 11:54 am	in the air when first heard	still in the air, or out of the network's hearing	36 min	293 nm	37,000 ft	516 kt
Saturday at 10:01 am to 10:42 am	San Francisco International SFO	still in the air, or out of the network's hearing	41 min	273 nm	37,025 ft	567 kt
Saturday at 7:53 am to 8:40 am	Santa Barbara Municipal SBA	San Francisco International SFO	47 min	250 nm	26,000 ft	401 kt
Friday at 8:07 pm to 8:56 pm	San Francisco International SFO	Santa Barbara Municipal SBA	48 min	256 nm	31,000 ft	424 kt
Friday at 4:24 pm to 5:26 pm	John Wayne/Orange County SNA	San Francisco International SFO	1 h 1 min	360 nm	36,000 ft	466 kt
Friday at 1:47 pm to 2:58 pm	San Francisco International SFO	John Wayne/Orange County SNA	1 h 10 min	381 nm	27,000 ft	476 kt
Friday at 11:04 am to 12:32 pm	Harry Reid International LAS	San Francisco International SFO	1 h 27 min	442 nm	34,025 ft	457 kt
Friday at 8:07 am to 9:19 am	San Francisco International SFO	Harry Reid International LAS	1 h 11 min	419 nm	31,000 ft	475 kt
Thursday at 9:03 pm to 10:11 pm	San Diego International SAN	San Francisco International SFO	1 h 7 min	402 nm	38,000 ft	451 kt
Thursday at 6:13 pm to 7:30 pm	San Francisco International SFO	San Diego International SAN	1 h 17 min	449 nm	29,000 ft	432 kt
Thursday at 3:14 pm to 4:35 pm	in the air when first heard	San Francisco International SFO	1 h 21 min	461 nm	39,000 ft	404 kt
Thursday at 11:46 am to 1:49 pm	Denver International DEN	Roberts Fld/Redmond Municipal RDM	2 h 3 min	785 nm	36,000 ft	427 kt
Thursday at 8:40 am to 9:51 am	in the air when first heard	Denver International DEN	1 h 11 min	421 nm	36,000 ft	419 kt
Thursday at 6:04 am to 7:58 am	Southwest Florida International RSW	still in the air, or out of the network's hearing	1 h 53 min	762 nm	37,000 ft	439 kt
Wednesday at 6:47 pm to 7:39 pm	in the air when first heard	Southwest Florida International RSW	51 min	329 nm	39,000 ft	481 kt
Wednesday at 5:30 pm to 6:02 pm	in the air when first heard	still in the air, or out of the network's hearing	31 min	241 nm	37,000 ft	469 kt
Wednesday at 9:43 am to 9:51 am	in the air when first heard	still in the air, or out of the network's hearing	8 min	69 nm	37,000 ft	505 kt
Tuesday at 9:38 pm to 10:15 pm	in the air when first heard	Frederick W Smith Intl/Memphis Airport MEM	37 min	205 nm	36,000 ft	393 kt
Tuesday at 6:05 pm to 6:23 pm	in the air when first heard	still in the air, or out of the network's hearing	18 min	112 nm	24,000 ft	426 kt
October 23 at 6:15 pm to 6:57 pm	in the air when first heard	still in the air, or out of the network's hearing	41 min	291 nm	35,200 ft	428 kt
October 22 at 6:14 pm to 6:53 pm	San Francisco International SFO	still in the air, or out of the network's hearing	39 min	271 nm	35,000 ft	478 kt
October 21 at 6:02 pm to 6:26 pm	in the air when first heard	San Diego International SAN	23 min	72 nm	13,100 ft	323 kt
October 20 at 6:04 pm to 6:50 pm	in the air when first heard	still in the air, or out of the network's hearing	45 min	352 nm	38,000 ft	502 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 737-800, built 2017
Kind: Airliner, 175 seats
Operator: United Airlines INC
Registered in: Chicago, IL
Transponder code: AA7E99

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