UAL1045

Flight

Status

Completed

Arrival confirmed via

ADS-B (callsign change)

Departure

San Francisco International Airport (SFO) — San Francisco, United States

Departed

2026-09-20 15:05 UTC

Arrival

Seattle Tacoma International Airport (SEA) — Seattle, United States

Distance flown

1426 km

Straight-line distance

1093 km

Approach distance

207 km

Aircraft

Registration

N73256

Type

Boeing 737-800

Seats

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

Altitude & speed

Max altitude

38,025 ft

Max ground speed

486 kt

Tracked

3h 47m · 1,356 km

Altitude (ft, max 38,025)

Ground speed (kt, max 486)

Altitude (ft, max 38,025)

Ground speed (kt, max 486)

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
2026-09-21 15:10 UTC	UAL1045	SFO → SEA San Francisco → Seattle	N442UA	Airbus A320 233	Completed	1131 km
2026-09-20 15:05 UTC	UAL1045	SFO → SEA San Francisco → Seattle	N73256	Boeing 737-800	Completed	1426 km
2026-09-18 14:52 UTC	UAL1045	SFO → SEA San Francisco → Seattle	N442UA	Airbus A320 233	Completed	1329 km
2026-09-17 15:17 UTC	UAL1045	SFO → SEA San Francisco → Seattle	N455UA	Airbus A320 233	Completed	1315 km
2026-09-14 16:02 UTC	UAL1045	SFO → SEA San Francisco → Seattle	N449UA	Airbus A320 233	Completed	1289 km
2026-09-13 14:45 UTC	UAL1045	SFO → SEA San Francisco → Seattle	N14231	Boeing 737-800	Completed	1343 km
2026-08-10 20:39 UTC	UAL1045	DEN → ? Denver → ?	N27263	Boeing 737 MAX 8	Incomplete (signal lost)	1 km
2026-08-10 20:38 UTC	UAL1045	DEN → DEN Denver → Denver	N27263	Boeing 737 MAX 8	Completed	~4 km est. (0 km recorded)
2026-08-10 20:38 UTC	UAL1045	DEN → DEN Denver → Denver	N27263	Boeing 737 MAX 8	Completed	~4 km est. (0 km recorded)
2026-08-10 20:36 UTC	UAL1045	DEN → DEN Denver → Denver	N27263	Boeing 737 MAX 8	Completed	~3 km est. (0 km recorded)
2026-08-10 20:35 UTC	UAL1045	DEN → DEN Denver → Denver	N27263	Boeing 737 MAX 8	Completed	~2 km est. (0 km recorded)
2026-08-10 20:34 UTC	UAL1045	DEN → DEN Denver → Denver	N27263	Boeing 737 MAX 8	Completed	~2 km est. (0 km recorded)
2026-08-10 20:32 UTC	UAL1045	DEN → DEN Denver → Denver	N27263	Boeing 737 MAX 8	Completed	~2 km est. (0 km recorded)
2026-08-10 20:30 UTC	UAL1045	DEN → DEN Denver → Denver	N27263	Boeing 737 MAX 8	Completed	~1 km est. (0 km recorded)
2026-08-10 20:28 UTC	UAL1045	DEN → DEN Denver → Denver	N27263	Boeing 737 MAX 8	Completed	~1 km est. (0 km recorded)
2026-08-10 20:27 UTC	UAL1045	DEN → DEN Denver → Denver	N27263	Boeing 737 MAX 8	Completed	~1 km est. (0 km recorded)
2026-08-10 20:26 UTC	UAL1045	DEN → DEN Denver → Denver	N27263	Boeing 737 MAX 8	Completed	~2 km est. (0 km recorded)
2026-08-10 20:25 UTC	UAL1045	DEN → DEN Denver → Denver	N27263	Boeing 737 MAX 8	Completed	~2 km est. (0 km recorded)