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N21102

Last heard yesterday at 9:12 pm, at 32,000 feet. 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 SFOSan Francisco International, San Francisco, CA Yesterday at 8:37 pm

Last heard …still in the air, or beyond the receivers' hearing Yesterday at 9:12 pm

Length: 34 min
Distance: 219 nm (252 miles)
Top altitude: 32,000 ft
Fastest: 459 knots (528 mph)
Positions heard: 16

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 8:37 pm to 9:12 pm	San Francisco International SFO	still in the air, or out of the network's hearing	34 min	219 nm	32,000 ft	459 kt
Tuesday at 7:27 am to 8:06 am	in the air when first heard	San Francisco International SFO	39 min	260 nm	41,000 ft	571 kt
Sunday at 11:45 pm to 12:14 am	San Francisco International SFO	still in the air, or out of the network's hearing	28 min	174 nm	28,975 ft	458 kt
Sunday at 3:08 pm to 4:49 pm	in the air when first heard	San Francisco International SFO	1 h 41 min	802 nm	36,000 ft	542 kt
Saturday at 7:14 pm to 7:18 pm	in the air when first heard	still in the air, or out of the network's hearing	4 min	35 nm	35,000 ft	527 kt
Saturday at 6:25 pm to 6:54 pm	in the air when first heard	still in the air, or out of the network's hearing	28 min	261 nm	35,000 ft	572 kt
Saturday at 5:25 pm to 6:02 pm	San Francisco International SFO	still in the air, or out of the network's hearing	36 min	290 nm	33,000 ft	604 kt
Saturday at 5:41 am to 9:20 am	George Bush Intcntl/Houston Airport IAH	San Francisco International SFO	3 h 39 min	1,509 nm	34,000 ft	517 kt
Saturday at 12:21 am to 2:48 am	in the air when first heard	George Bush Intcntl/Houston Airport IAH	2 h 27 min	1,050 nm	38,000 ft	479 kt
Friday at 10:39 pm to 11:01 pm	in the air when first heard	still in the air, or out of the network's hearing	21 min	179 nm	36,000 ft	497 kt
Thursday at 11:39 pm to 11:47 pm	in the air when first heard	still in the air, or out of the network's hearing	8 min	68 nm	35,000 ft	505 kt
Thursday at 8:18 pm to 10:12 pm	in the air when first heard	still in the air, or out of the network's hearing	1 h 53 min	981 nm	35,000 ft	548 kt
Thursday at 11:23 am to 1:27 pm	in the air when first heard	George Bush Intcntl/Houston Airport IAH	2 h 3 min	964 nm	41,000 ft	535 kt
Thursday 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	52 min	446 nm	37,000 ft	517 kt
October 28 at 2:51 pm to 3:16 pm	in the air when first heard	still in the air, or out of the network's hearing	25 min	187 nm	38,000 ft	454 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 787-9, built 2026
Kind: Airliner, 422 seats
Operator: United Airlines INC
Registered in: Chicago, IL
Transponder code: A1BFAC

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