How long is the UA3870 flight?

The timetable allows 3 h 31 min. San Francisco to San Antonio is 2,381 km (1,480 mi).

What other flight numbers does UA3870 have?

Also listed as UAL3870 (United Airlines' ICAO code) and UA 3870.

UA3870 Flight Status United Airlines: San Francisco to San Antonio (UAL3870)

Are you looking for the November 9th, 2026 UA 3870 San Francisco to Wichita flight? Go to our UA3870 San Francisco to Wichita Flight Status page >

UA 3870 San Francisco to San Antonio Flight Status

Not scheduled today (November 9th, 2026). Latest flight: October 21st, 2026 ; recent history is in the table below.

UA 3870 Flight Status & Schedule United Airlines San Francisco to San Antonio

Date	From	To	Departure	Arrival	Status	Details
Oct 21	SFO	SAT	06:22	11:20	Landed	Track >

United Airlines operates UA 3870 from San Francisco to San Antonio, a 2,381 km (1,480 mi) trip. The timetable allows 3 h 31 min; there is not enough recent history yet to say how long it usually takes. It is not flying today; the last flight, on 21 October 2026, landed on time.

< All San Francisco SFO Departures All San Antonio SAT Arrivals >

About UA 3870

Route: San Francisco International Airport SFO to San Antonio International Airport SAT
Distance: 2,381 km (1,480 mi)
Scheduled flight time: 3 h 31 min

UA 3870 FAQ

How long is the UA3870 flight?: The timetable allows 3 h 31 min. San Francisco to San Antonio is 2,381 km (1,480 mi).
What other flight numbers does UA3870 have?: Also listed as UAL3870 (United Airlines' ICAO code) and UA 3870.

UA3870 and San Francisco SFO to San Antonio SAT Flights

Other flights departing from San Francisco SFO: AA2964, UA517

Other flights arriving at San Antonio SAT: WN4050, UA490, WN194, K958

All flights connecting San Francisco SFO to San Antonio SAT.