Cheapest return flights from Washington to Calgary in September from $156

Best time to book flights for Washington (IAD) to Calgary (YYC) flights at AirHint

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

Return flights

01 Sep - 15 Sep WestJet direct
01 Sep - 22 Sep WestJet direct
05 Sep - 12 Sep WestJet direct
15 Sep - 10 Oct WestJet direct
15 Sep - 13 Oct WestJet direct
11 Sep - 29 Sep Allegiant Air
04 Sep - 12 Sep Avelo Airlines
04 Sep - 22 Sep Avelo Airlines
17 Sep - 10 Oct Hawaiian Airlines
17 Sep - 13 Oct Hawaiian Airlines
06 Sep - 12 Sep Hawaiian Airlines
16 Sep - 13 Oct Hawaiian Airlines
16 Sep - 10 Oct Hawaiian Airlines
02 Sep - 22 Sep Porter Airlines (Canada) Ltd
10 Sep - 29 Sep Porter Airlines (Canada) Ltd
03 Sep - 22 Sep Porter Airlines (Canada) Ltd
30 Sep - 16 Oct United
24 Sep - 15 Oct United
30 Sep - 07 Oct United
23 Sep - 03 Oct Hawaiian Airlines

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

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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.

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