Cheap Flights from Niagara Falls to Aspen

View €155 flight on Thu, 21 Aug 2025Opens in a new window

Popular airlines from Niagara Falls to Aspen

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Cheap flights from Niagara Falls to Aspen (YYZ-DEN)

Prices were available within the past 7 days and start at €155 for one-way flights and €338 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Fri, 17 Oct - Sun, 26 Oct
YYZ
Toronto
DEN
Denver
€338 Return, found 4 days ago
€338
Return
found 4 days ago
Select United flight, departing Fri, 17 Oct from Toronto to Denver, returning Sun, 26 Oct, priced at €338 found 4 days ago
United
Fri, 17 Oct - Sun, 26 Oct
YYZ
Toronto
DEN
Denver
€338 Return, found 4 days ago
€338
Return
found 4 days ago
Select United flight, departing Fri, 17 Oct from Toronto to Denver, returning Sun, 26 Oct, priced at €338 found 4 days ago
Delta
Fri, 17 Oct - Sun, 26 Oct
YYZ
Toronto
DEN
Denver
€363 Return, found 4 days ago
€363
Return
found 4 days ago
Select Delta flight, departing Fri, 17 Oct from Toronto to Denver, returning Sun, 26 Oct, priced at €363 found 4 days ago
Air Canada
Fri, 17 Oct - Sun, 26 Oct
YYZ
Toronto
DEN
Denver
€376 Return, found 4 days ago
€376
Return
found 4 days ago
Select Air Canada flight, departing Fri, 17 Oct from Toronto to Denver, returning Sun, 26 Oct, priced at €376 found 4 days ago
American Airlines
Fri, 17 Oct - Sun, 26 Oct
YYZ
Toronto
DEN
Denver
€377 Return, found 4 days ago
€377
Return
found 4 days ago
Select American Airlines flight, departing Fri, 17 Oct from Toronto to Denver, returning Sun, 26 Oct, priced at €377 found 4 days ago
WestJet
Fri, 17 Oct - Sun, 26 Oct
YYZ
Toronto
DEN
Denver
€1,133 Return, found 4 days ago
€1,133
Return
found 4 days ago
Select WestJet flight, departing Fri, 17 Oct from Toronto to Denver, returning Sun, 26 Oct, priced at €1,133 found 4 days ago

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

May is typically the cheapest month to fly

From €189 - €499 per traveller.

Graph displaying average flight prices per month

*Available to Expedia members.