How long is the UA3903 flight?

The timetable allows 2 h 14 min. Ontario to Denver is 1,316 km (818 mi).

What other flight numbers does UA3903 have?

Also listed as UAL3903 (United Airlines' ICAO code) and UA 3903.

UA3903 Flight Status United Airlines: Ontario to Denver (UAL3903)

Are you looking for the November 3rd, 2026 UA 3903 Honolulu to Washington flight? Go to our UA3903 Honolulu to Washington Flight Status page >

UA 3903 Ontario to Denver Flight Status

Not scheduled today (November 3rd, 2026). Latest flight: October 13th, 2026 ; recent history is in the table below.

UA 3903 Flight Status & Schedule United Airlines Ontario to Denver

Date	From	To	Departure	Arrival	Status	Details
Oct 13	ONT	DEN	06:00	09:14	En-Route	Track >

United Airlines' Ontario–Denver flight covers 1,316 km (818 mi). The timetable allows 2 h 14 min; there is not enough recent history yet to say how long it usually takes. It is not flying today; the last flight was scheduled on 13 October 2026.

< All Ontario ONT Departures All Denver DEN Arrivals >

About UA 3903

Route: Ontario International Airport ONT to Denver International Airport DEN
Distance: 1,316 km (818 mi)
Scheduled flight time: 2 h 14 min

UA 3903 FAQ

How long is the UA3903 flight?: The timetable allows 2 h 14 min. Ontario to Denver is 1,316 km (818 mi).
What other flight numbers does UA3903 have?: Also listed as UAL3903 (United Airlines' ICAO code) and UA 3903.

UA3903 and Ontario ONT to Denver DEN Flights

Other flights departing from Ontario ONT: WN3267, WN3585, WN249, EM8671

Other flights arriving at Denver DEN: WN496, WN2144, WN2026, OO4699

All flights connecting Ontario ONT to Denver DEN.