UA1257

For travellers

Departure · San Francisco (SFO)

Terminal T3 · Gate E8

Scheduled 12:00 · Departed 12:40 · +40 min

Board status: Departed

Airborne since 12:46 (ADS-B)

Arrival · San Diego (SAN)

Gate 41 · Baggage belt T2-6

Scheduled 13:44 · Estimated 14:42 · +58 min

Board status: Delayed

Landed 15:31 (ADS-B)

Board data from san, sfo, updated 365 min ago; times local to each airport.

Flight

Status

Completed

Arrival confirmed via

ADS-B (callsign change)

Departure

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

Scheduled departure

2026-10-02 19:00 UTC

Departed

2026-10-02 19:46 UTC

Arrival

San Diego International Airport (SAN) — San Diego, United States

Scheduled arrival

2026-10-02 20:44 UTC

Estimated arrival

2026-10-02 21:42 UTC

Codeshares

AC4218, VA8569

Distance flown

1004 km

Straight-line distance

719 km

Approach distance

225 km

Aircraft

Registration

N37257

Type

Boeing 737 MAX 8

Seats

166 total (96 Economy, 54 Economy Plus, 16 First)

CO2 (EMEP est., total)

15.1 t (88 kg/pax Economy, 116 kg/pax Business)

Altitude & speed

Max altitude

31,000 ft

Max ground speed

457 kt

Tracked

2h 50m · 997 km

Altitude (ft, max 31,000)

Ground speed (kt, max 457)

Altitude (ft, max 31,000)

Ground speed (kt, max 457)

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
2026-10-02 19:46 UTC	UAL1257	SFO → SAN San Francisco → San Diego	N37257	Boeing 737 MAX 8	Completed	1004 km
2026-10-02 12:08 UTC	UAL1257	MIA → SFO Miami → San Francisco	N77585	Boeing 737 MAX 9	Completed	4332 km
2026-10-01 19:22 UTC	UAL1257	SFO → SAN San Francisco → San Diego	N17335	Boeing 737 MAX 8	Completed	824 km
2026-10-01 12:10 UTC	UAL1257	MIA → SFO Miami → San Francisco	N17344	Boeing 737 MAX 8	Completed	4461 km
2026-09-30 19:10 UTC	UAL1257	SFO → SAN San Francisco → San Diego	N17310	Boeing 737 MAX 8	Completed	840 km
2026-09-30 12:14 UTC	UAL1257	MIA → SFO Miami → San Francisco	N27266	Boeing 737 MAX 8	Completed	4318 km
2026-09-29 18:59 UTC	UAL1257	SFO → SAN San Francisco → San Diego	N37351	Boeing 737 MAX 8	Completed	827 km
2026-09-29 12:13 UTC	UAL1257	MIA → SFO Miami → San Francisco	N57451	Boeing 737 MAX 9	Completed	4323 km
2026-09-28 13:35 UTC	UAL1257	MIA → SFO Miami → San Francisco	N37530	Boeing 737 MAX 9	Completed	4335 km
2026-09-26 12:14 UTC	UAL1257	MIA → SFO Miami → San Francisco	N27546	Boeing 737 MAX 9	Completed	4266 km
2026-09-25 12:15 UTC	UAL1257	MIA → SFO Miami → San Francisco	N37510	Boeing 737 MAX 9	Completed	4318 km
2026-09-24 12:05 UTC	UAL1257	MIA → SFO Miami → San Francisco	N27464	Boeing 737 MAX 9	Completed	4316 km