Cheap flights from Niagara Falls to Aspen

View AU$181 flight on Wed, 13 Aug. 2025Opens in a new window

Popular airlines from Niagara Falls to Aspen

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Cheap Flights from Niagara Falls (BUF) to Aspen (DEN)

Prices were available within the past 7 days for one-way flights and round trip tickets for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Mon, 25 Aug. - Sun, 31 Aug.
BUF
Buffalo
DEN
Denver
AU$362 Return, found 5 days ago
AU$362
Return
found 5 days ago
Select American Airlines flight, departing Mon, 25 Aug. from Buffalo to Denver, returning Sun, 31 Aug., priced at AU$362 found 5 days ago
Delta
Thu, 14 Aug. - Thu, 21 Aug.
BUF
Buffalo
DEN
Denver
AU$363 Return, found 6 days ago
AU$363
Return
found 6 days ago
Select Delta flight, departing Thu, 14 Aug. from Buffalo to Denver, returning Thu, 21 Aug., priced at AU$363 found 6 days ago
American Airlines
Mon, 25 Aug. - Sun, 31 Aug.
BUF
Buffalo
DEN
Denver
AU$392 Return, found 5 days ago
AU$392
Return
found 5 days ago
Select American Airlines flight, departing Mon, 25 Aug. from Buffalo to Denver, returning Sun, 31 Aug., priced at AU$392 found 5 days ago
American Airlines
Mon, 25 Aug. - Sun, 31 Aug.
BUF
Buffalo
DEN
Denver
AU$423 Return, found 5 days ago
AU$423
Return
found 5 days ago
Select American Airlines flight, departing Mon, 25 Aug. from Buffalo to Denver, returning Sun, 31 Aug., priced at AU$423 found 5 days ago
Delta
Mon, 25 Aug. - Sun, 31 Aug.
BUF
Buffalo
DEN
Denver
AU$425 Return, found 5 days ago
AU$425
Return
found 5 days ago
Select Delta flight, departing Mon, 25 Aug. from Buffalo to Denver, returning Sun, 31 Aug., priced at AU$425 found 5 days ago
United
Mon, 25 Aug. - Sun, 31 Aug.
BUF
Buffalo
DEN
Denver
AU$532 Return, found 5 days ago
AU$532
Return
found 5 days ago
Select United flight, departing Mon, 25 Aug. from Buffalo to Denver, returning Sun, 31 Aug., priced at AU$532 found 5 days ago

Find the cheapest month to fly from Toronto (YYZ) to Denver (DEN)

June is typically the cheapest month to fly

From AU$331 - AU$607 per traveller.

Graph displaying average flight prices per month

*Available to Expedia members.