Buffalo to Washington (BUF-IAD): nonstop flights and who flies them

United Airlines flies nonstop between Buffalo (BUF) and Washington (IAD), roughly 31 times a week. The timetable below shows the nonstop scheduled at 1h 15m to 1h 29m for the 283 miles.

Schedule last confirmed . Departure times come from 2LNR's schedule data; confirm with the airline before you book.

Updated .

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31
Flights a week, 4-week average
1h 15m to 1h 29m
Scheduled flight time
283 mi
Nonstop distance
Free
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Buffalo to Washington flight schedule

Scheduled nonstop departures for BUF to IAD starting October 22, 2026, last checked against our schedule feed on October 18, 2026. Airlines retime and cancel flights, so confirm with the airline before you book.

Schedule data dated .

Scheduled nonstop departures from Buffalo (BUF) to Washington (IAD)
Date Flight Airline Departs BUF Arrives IAD Duration Aircraft
UA 4468United Airlines06:0007:231h 23mCR5
UA 4192United Airlines10:1011:251h 15mCR5
UA 4291United Airlines15:0516:251h 20mERJ
UA 4170United Airlines19:5921:201h 21mCR5
UA 4468United Airlines06:0007:231h 23mCR5
UA 4192United Airlines10:1011:251h 15mCR5
UA 4291United Airlines15:0516:251h 20mERJ
UA 4170United Airlines19:5921:201h 21mCR5
UA 4192United Airlines10:1011:251h 15mCR5
UA 4170United Airlines19:5921:201h 21mCR5
UA 4390United Airlines06:0007:211h 21mCR5
UA 4935United Airlines10:2011:411h 21mERJ
UA 4255United Airlines10:3511:551h 20mERJ
UA 4291United Airlines15:0516:251h 20mERJ
UA 4270United Airlines19:5921:181h 19mERJ
UA 4390United Airlines06:0007:211h 21mCR5
UA 4935United Airlines10:2011:411h 21mERJ
UA 3991United Airlines10:3511:551h 20mEmbraer E175
UA 4291United Airlines15:0516:251h 20mERJ
UA 4270United Airlines19:5921:181h 19mERJ
UA 3700United Airlines06:0007:291h 29mEmbraer E175
UA 4935United Airlines10:2011:411h 21mERJ
UA 3991United Airlines10:3011:511h 21mEmbraer E175
UA 4255United Airlines10:3511:551h 20mERJ
UA 4291United Airlines15:0516:251h 20mERJ
UA 4390United Airlines06:0007:211h 21mCR5
UA 4935United Airlines10:2011:411h 21mERJ
UA 3991United Airlines10:3011:511h 21mEmbraer E175
UA 4255United Airlines10:3511:551h 20mERJ
UA 4291United Airlines14:5516:211h 26mERJ

Showing all 30 scheduled BUF to IAD departures across 7 days with service, starting October 22, 2026. Later dates are on the interactive map.

Departure and arrival times are local at their own airport, so an arrival can fall on a different local date than the departure; the duration column is the true elapsed flying time. A dash means the airline hasn't filed that value in the schedule data we hold. Aircraft are the equipment the airline filed, named where the code pins down one type and shown as the family or the bare code where it doesn't. Swaps can happen up to departure.

See every BUF to IAD date on the interactive map

Aircraft on the Buffalo to Washington nonstop

United Airlines flies the departures in the schedule table on this page with the Embraer ERJ, the Bombardier CRJ, and the Embraer E175. Each linked aircraft page shows where that airline schedules it. Airlines can swap aircraft up to departure.

The full BUF to IAD nonstop schedule

This page carries the full BUF to IAD nonstop schedule, who operates each departure and how often it runs; the reverse direction is linked below.

See the schedule

Who operates each BUF to IAD nonstop and how often it runs, from 2LNR's schedule data.

Plan on the map

See BUF to IAD on the interactive route map, with schedules, connections, and route statistics.

Airlines flying Buffalo to Washington nonstop

Carriers operating BUF to IAD nonstop in the current schedule.

See BUF to IAD on the interactive map →

Frequently asked questions about BUF to IAD

How long is the flight from Buffalo (BUF) to Washington (IAD)?
Scheduled flight times from Buffalo (BUF) to Washington (IAD) run from 1h 15m to 1h 29m across the departures in the schedule table on this page. The nonstop covers about 283 miles, and airlines adjust scheduled times by season, so confirm with the airline before you book.
Which airlines fly nonstop from BUF to IAD?
United Airlines is currently the only airline flying BUF to IAD nonstop. 2LNR doesn't show award or upgrade space for it on BUF to IAD, so this page carries the schedule rather than a space claim.
How many flights a week are there from BUF to IAD?
About 31 nonstop flights a week run between Buffalo (BUF) and Washington (IAD) in the current schedule, operated by United Airlines. Frequency shifts by season, and the schedule table on this page shows what is scheduled next.
What time do flights from BUF to IAD depart?
Scheduled BUF to IAD nonstops in the next 7 days with service leave between 06:00 and 19:59, local time at Buffalo. The schedule table on this page lists every departure by date, with its arrival time and aircraft.
Which flights operate BUF to IAD nonstop?
The schedule table on this page lists 10 flight numbers for BUF to IAD nonstops, including UA 3991, UA 4170, UA 4192, UA 4255, UA 4291, UA 4390, UA 4468, and UA 4935 on United Airlines. The table lists each departure by date with its times and aircraft.
Does 2LNR show upgrade or award space on BUF to IAD?
Not on this route: 2LNR doesn't show award or upgrade space for United Airlines on BUF to IAD. The page carries the full BUF to IAD nonstop schedule and who flies each departure, and the reverse direction is linked below.

See the full BUF to IAD nonstop schedule

Every scheduled departure on this route, with who flies it. 2LNR shows upgrade and award space by date on the carriers it tracks, the next 14 days free on every product and the full horizon on Pro.

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