AirHint found the following cheapest return flights from Detroit (DTW) to Calgary (YYC) in July 2025 (see full year).

Return flights

23 Jul - 30 Jul	Spirit Airlines
26 Jul - 30 Jul	Frontier Airlines
23 Jul - 27 Jul	Spirit Airlines
27 Jul - 28 Jul	WestJet
31 Jul - 14 Aug	Spirit Airlines
31 Jul - 04 Aug	Spirit Airlines
20 Jul - 24 Jul	Spirit Airlines
27 Jul - 31 Jul	Spirit Airlines
19 Jul - 22 Jul	Spirit Airlines
16 Jul - 23 Jul	WestJet
16 Jul - 21 Jul	WestJet
13 Jul - 20 Jul	Delta
27 Jul - 02 Aug	United

Also check the deals for one-way flights from Detroit to Calgary in July.

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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Cheapest return flights from Detroit to Calgary in July from 242€

Return flights