Earn point on your loyalty program!arrow arc left

Cheap flights from Denver (DEN) to Buffalo (BUF)

Know your dates, get live prices in seconds
airplane logo

pin logo

calendar
Departure
calendar backward
Return
airplane logo
1 Adults (11+)
0 Children (2~11)
0 Infants (0~2)
Save up to 31%
Book Flight + Hotel at the same time

How to find the cheapest flight from Denver (DEN) to Buffalo (BUF)

How to find the cheapest flight from Denver (DEN) to Buffalo (BUF)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.
How to find the cheapest flight from Denver (DEN) to Buffalo (BUF)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.
How to find the cheapest flight from Denver (DEN) to Buffalo (BUF)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.

Cheap flights from Denver to Buffalo in March , April 2026

25 Mar - 21 Apr $ 222.00
DEN
Denver
Frontier Airlines
1 STOPS
BUF
Buffalo
BUF
Buffalo
Frontier Airlines
1 STOPS
DEN
Denver
Pick dates
30 Mar - 13 Apr $ 379.00
DEN
Denver
United Airlines
DIRECT
BUF
Buffalo
BUF
Buffalo
United Airlines
DIRECT
DEN
Denver
Pick dates
30 Mar - 06 Apr $ 379.00
DEN
Denver
United Airlines
DIRECT
BUF
Buffalo
BUF
Buffalo
United Airlines
DIRECT
DEN
Denver
Pick dates

Last minute flights from Denver to Buffalo

24 Mar - 31 Mar $ 359.00
DEN
Denver
United Airlines
DIRECT
BUF
Buffalo
BUF
Buffalo
United Airlines
1 STOPS
DEN
Denver
Pick dates
25 Mar - 31 Mar $ 379.00
DEN
Denver
United Airlines
DIRECT
BUF
Buffalo
BUF
Buffalo
United Airlines
DIRECT
DEN
Denver
Pick dates
24 Mar - 31 Mar $ 379.00
DEN
Denver
United Airlines
DIRECT
BUF
Buffalo
BUF
Buffalo
United Airlines
DIRECT
DEN
Denver
Pick dates

One-way flights to Buffalo from Denver

11:59 PM - 10:01 AM
Frontier Airlines
1 Stops
10h 6m
DEN - BUF
$ 131
Kiwi
Pick dates
11:59 PM - 8:20 AM
United Airlines
1 Stops
7h 51m
DEN - BUF
$ 449
Kiwi
Pick dates
5:55 PM - 5:55 PM
United Airlines
0 Stops
3h 15m
DEN - BUF
$ 534
Kiwi
Pick dates

How to find the cheapest flight from Denver (DEN) to Buffalo (BUF)

Related info for your journey
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.
How to find the cheapest flight from Denver (DEN) to Buffalo (BUF)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.
How to find the cheapest flight from Denver (DEN) to Buffalo (BUF)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.