UAL3939

Flight

Status

Completed

Departure

La Guardia Airport (LGA) — New York, United States

Departed

2026-09-03 13:26 UTC

Arrival

Chicago O'Hare International Airport (ORD) — Chicago, United States

Distance flown

1331 km

Straight-line distance

1177 km

Approach distance

86 km

Aircraft

Registration

N12225

Type

Boeing 737-800

Seats

166 total (102 Economy, 48 Economy Plus, 16 First)

Altitude & speed

Max altitude

40,025 ft

Max ground speed

430 kt

Tracked

2h 14m · 1,284 km

Altitude (ft, max 40,025)

Ground speed (kt, max 430)

Altitude (ft, max 40,025)

Ground speed (kt, max 430)

From the ADS-B positions we received; time since the first fix. A dashed stretch is a gap in reception, bridged by a straight line.

Route map

Airline

United Airlines (UAL)

Latest flights

Departed	Flight	Route	Reg	Aircraft	Status	Distance
2026-09-28 15:29 UTC	UAL3939	EWR → ORD Newark → Chicago	N17017	Boeing 787-10	Completed	1255 km
2026-09-24 03:10 UTC	UAL3939	ORD → DEN Chicago → Denver	N14564	Airbus A321 Neo	Completed	1473 km
2026-09-21 22:40 UTC	UAL3939	RDU → BNA Raleigh/Durham → Nashville	N894UA	Airbus A319	Completed	778 km
2026-09-20 01:47 UTC	UAL3939	DEN → ABQ Denver → Albuquerque	N76288	Boeing 737-800	Completed	764 km
2026-09-17 23:44 UTC	UAL3939	MCO → FLL Orlando → Fort Lauderdale	N36447	Boeing 737-900	Completed	453 km
2026-09-15 08:07 UTC	UAL3939	DEN → DEN Denver → Denver	N17459	Boeing 737 MAX 9	Completed	3 km
2026-09-15 06:06 UTC	UAL3939	SFO → DEN San Francisco → Denver	N17459	Boeing 737 MAX 9	Completed	1751 km
2026-09-10 16:05 UTC	UAL3939	CDG → IAD Paris → Washington, DC	N649UA	Boeing B767 300ER	Completed	6766 km
2026-09-03 13:26 UTC	UAL3939	LGA → ORD New York → Chicago	N12225	Boeing 737-800	Completed	1331 km
2026-08-31 14:09 UTC	UAL3939	IAH → EWR Houston → Newark	N773UA	Boeing 777-200ER	Completed	2622 km
2026-08-28 13:09 UTC	UAL3939	IAD → ? Washington, DC → ?	N66057	Boeing 767-400ER	Incomplete (signal lost)	2058 km
2026-08-21 04:05 UTC	UAL3939	HNL → SFO Honolulu → San Francisco	N27586	Boeing 737 MAX 9	Completed	4273 km
2026-08-18 09:35 UTC	UAL3939	CDG → SFO Paris → San Francisco	N76021	Boeing 777-200ER	Completed	14296 km
2026-08-15 20:15 UTC	UAL3939	MIA → CLE Miami → Cleveland	N37468	Boeing 737-900	Completed	4189 km
2026-08-13 22:43 UTC	UAL3939	IAH → DFW Houston → Dallas-Fort Worth	N480UA	Airbus A320 233	Completed	647 km
2026-08-11 21:28 UTC	UAL3939	SFO → IAH San Francisco → Houston	N13750	Boeing 737-700	Completed	3975 km