How long is the UA3991 flight?

The timetable allows 1 h 20 min. Buffalo to Washington is 457 km (284 mi).

What other flight numbers does UA3991 have?

Also listed as UAL3991 (United Airlines' ICAO code) and UA 3991.

UA3991 Flight Status United Airlines: Buffalo to Washington (UAL3991)

UA 3991 Buffalo to Washington Flight Status

Not scheduled today. Latest flight: October 29th, 2026 ; recent history is in the table below.

UA 3991 Flight Status & Schedule United Airlines Buffalo to Washington

Date	From	To	Departure	Arrival	Status	Details
Oct 29	BUF	IAD	10:35	11:55	Scheduled	Track >

United Airlines flight UA 3991 links Buffalo and Washington, 457 km (284 mi) apart. The timetable allows 1 h 20 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 29 October 2026.

< All Buffalo BUF Departures All Washington IAD Arrivals >

About UA 3991

Route: Buffalo Niagara International Airport BUF to Washington Dulles International Airport IAD
Distance: 457 km (284 mi)
Scheduled flight time: 1 h 20 min

UA 3991 FAQ

How long is the UA3991 flight?: The timetable allows 1 h 20 min. Buffalo to Washington is 457 km (284 mi).
What other flight numbers does UA3991 have?: Also listed as UAL3991 (United Airlines' ICAO code) and UA 3991.

UA3991 and Buffalo BUF to Washington IAD Flights

Other flights departing from Buffalo BUF: G74619, YV3991, PT5868

Other flights arriving at Washington IAD: UA1858, YV3991, UA6179, YX3441

All flights connecting Buffalo BUF to Washington IAD.