Cheapest return flights from Denver to Calgary in September from 108€

AirHint found the following cheapest return flights from Denver (DEN) to Calgary (YYC) in September 2025 (see full year).

Return flights

28 Sep - 05 Oct WestJet direct
29 Sep - 05 Oct WestJet direct
29 Sep - 06 Oct WestJet direct
28 Sep - 04 Oct United direct
30 Sep - 07 Oct Frontier Airlines
26 Sep - 28 Sep Frontier Airlines
30 Sep - 06 Oct Frontier Airlines
23 Sep - 30 Sep Frontier Airlines
20 Sep - 27 Sep Frontier Airlines
22 Sep - 25 Sep Frontier Airlines
26 Sep - 28 Sep WestJet direct
30 Sep - 06 Oct United direct
30 Sep - 07 Oct United direct
19 Sep - 21 Sep Frontier Airlines
23 Sep - 30 Sep United direct
24 Sep - 28 Sep Delta
20 Sep - 27 Sep Air Canada direct
19 Sep - 21 Sep Air Canada direct

Also check the deals for one-way flights from Denver to Calgary in September.

Skyscanner

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

Book a cheap hotel in Calgary

Cheap car rent in Calgary

Feel free to contact us with any feedback or request another flight research.