Southwest Airlines
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United States
Denver International Airport
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United States
Buffalo Niagara International Airport
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Scan through all non-stop flights from Denver to Buffalo. The full flight schedule below gives an overview of all non-stop flights from DEN 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!
In total there are 2 airlines operating nonstop flights from Denver DEN to Buffalo BUF. 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 DEN BUF flight schedule.
Flights from DEN to BUF are operated 8 times a week, with an average of 1 flight per day. Departure times vary between 10:45 - 19:25. The earliest flight departs at 10:45, the last flight departs at 19:25. 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 Denver to Buffalo takes 3 hours. The flight distance between Denver and Buffalo is 1,354 miles (or 2,179 km).
There is 1 airport in Buffalo: Buffalo Niagara International Airport (BUF).
There are 8 flights per week flying from Denver to Buffalo (as of May 2026).
3 hours is the average flight time from Denver to Buffalo.
The distance from Denver to Buffalo is 1,354 miles (2,179 kilometers).
Southwest Airlines and United Airlines are flying nonstop from Denver to Buffalo.
Star Alliance is currently the only alliance flying nonstop from Denver to Buffalo.
You can fly non-stop in Economy and Business Class.
Aircraft types that fly from Denver to Buffalo:
The earliest flight departs at 10:45 from Denver and arrives at 15:50 at Buffalo.
The latest flight departs at 19:25 from Denver and arrives at 00:30 at Buffalo.
1,354 miles (2,179 km) · 3h
11:30
16:35
Southwest Airlines
WN 2957
Southwest Airlines
Boeing 757
Y
W
J
F
17:40
22:58
United Airlines
Star Alliance
UA 248
United Airlines
Boeing 737-800
Y
W
J
F
17:40
22:58
United Airlines
Star Alliance
UA 248
United Airlines
Boeing 737-800
Y
W
J
F
17:48
23:05
United Airlines
Star Alliance
UA 2464
United Airlines
Boeing 737-800
Y
W
J
F
17:48
23:05
United Airlines
Star Alliance
UA 2464
United Airlines
Airbus A320-100/200
Y
W
J
F
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