United Airlines
Star Alliance
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United States
Washington Dulles International Airport
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United States
Buffalo Niagara International Airport
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Scan through all non-stop flights from Washington to Buffalo. The full flight schedule below gives an overview of all non-stop flights from IAD to BUF, which includes the daily timetable of every operating airline for the upcoming 12 months.
Note: for airline-specific flight schedules, please scroll further down.
Warm Continental destinations such as Buffalo enjoy summer temperatures that fluctuate between 20°C and 28°C (68°F to 82°F), with some heatwaves leading to even hotter days. Winters are mostly cold and snowy, with average temperatures ranging from -5°C to 0°C (23°F to 32°F). Travelers can enjoy the vibrant autumn scenery, ski during the winter season, or enjoy the comfortable to warm summer months.
If you're planning a trip to Buffalo, the best time to visit is from late spring through the end of summer, when the weather is pleasantly warm from May to August. Winters can be quite cold, with frost occurring almost every month from November to March and regular snowfall. This makes the mountainous regions perfect for winter sports, offering great opportunities for a winter getaway as well!
Currently, there is only one airline operating non-stop flights from Washington IAD to Buffalo BUF, which is United Airlines. This section gives an overview of the flight schedules and timetables of every airline with direct flights for this route.
Click an airline below to view their IAD BUF flight schedule.
Flights from IAD to BUF are operated twice a week. Departure times vary between 08:18 - 22:30. The earliest flight departs at 08:18, the last flight departs at 22:30. However, this depends on the date you are flying so please check with the full flight schedule above to see which departure times are available on your preferred date(s) of travel.
You can fly in Economy and Business Class. Premium Economy and First Class are not available on this route (at least not as a non-stop flight).
The fastest direct flight from Washington to Buffalo takes 1 hour and 21 minutes. The flight distance between Washington and Buffalo is 283 miles (or 455 km).
There is 1 airport in Buffalo: Buffalo Niagara International Airport (BUF).
There are 2 flights per week flying from Washington to Buffalo (as of March 2026).
1 hour and 21 minutes is the average flight time from Washington to Buffalo.
The distance from Washington to Buffalo is 283 miles (455 kilometers).
United Airlines is the only airline flying nonstop from Washington to Buffalo.
Star Alliance is currently the only alliance flying nonstop from Washington to Buffalo.
You can fly non-stop in Economy and Business Class.
Aircraft types that fly from Washington to Buffalo:
The earliest flight departs at 08:18 from Washington and arrives at 09:39 at Buffalo.
The latest flight departs at 22:30 from Washington and arrives at 23:55 at Buffalo.
283 miles (455 km) · 1h 21m
08:32
10:00
United Airlines
Star Alliance
UA 4236
United Airlines
Embraer RJ135 / RJ140 / RJ145
Y
W
J
F
12:52
14:17
United Airlines
Star Alliance
UA 4335
United Airlines
Embraer RJ135 / RJ140 / RJ145
Y
W
J
F
17:24
18:49
United Airlines
Star Alliance
UA 4823
United Airlines
Embraer RJ135 / RJ140 / RJ145
Y
W
J
F
22:21
23:50
United Airlines
Star Alliance
UA 4353
United Airlines
Embraer RJ135 / RJ140 / RJ145
Y
W
J
F
22:21
23:50
United Airlines
Star Alliance
UA 6216
United Airlines
Embraer 175
Y
W
J
F
22:23
23:50
United Airlines
Star Alliance
UA 4523
United Airlines
Bombardier CRJ 550
Y
W
J
F
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