Cheapest return flights from Boston to Calgary in July from $312

Best time to book flights for Boston (BOS) to Calgary (YYC) flights at AirHint

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

Return flights

31 Jul - 05 Aug WestJet
10 Jul - 14 Jul Spirit Airlines
01 Jul - 05 Jul WestJet
11 Jul - 14 Jul Spirit Airlines
10 Jul - 13 Jul WestJet
11 Jul - 19 Jul Spirit Airlines
18 Jul - 20 Jul WestJet
24 Jul - 30 Jul WestJet direct
01 Jul - 05 Jul WestJet direct
31 Jul - 05 Aug WestJet direct
10 Jul - 14 Jul WestJet direct
11 Jul - 19 Jul WestJet direct

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

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.

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