Cheapest return flights from Baltimore (BWI) to Calgary (YYC), September

Select a price to book. see full year.

Dates, airline, and price
Dates Airline Price
28 Sep 05 Oct Frontier Airlines
01 Sep 06 Sep Frontier Airlines
08 Sep 13 Sep Frontier Airlines
18 Sep 26 Sep Frontier Airlines
12 Sep 16 Sep Frontier Airlines
10 Sep 13 Sep Frontier Airlines
23 Sep 27 Sep Frontier Airlines
11 Sep 17 Sep American Airlines
04 Sep 07 Sep Frontier Airlines
19 Sep 19 Sep Frontier Airlines
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deals for one-way flights from Baltimore to Calgary in September.

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Updated Jul 4, 2026.

About these fares

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