Cheapest return flights from Boston to Calgary in May from 161€

AirHint found the following cheapest return flights from Boston (BOS) to Calgary (YYC) in May 2026 (see full year).

Return flights

15 May - 22 May WestJet direct
31 May - 07 Jun WestJet direct
29 May - 05 Jun WestJet direct
12 May - 19 May WestJet direct
15 May - 29 May WestJet direct
12 May - 29 May WestJet direct
26 May - 05 Jun WestJet direct
10 May - 17 May Air Canada
09 May - 11 May WestJet direct
27 May - 04 Jun United
12 May - 26 May WestJet
15 May - 12 Jun WestJet
15 May - 26 May WestJet
27 May - 10 Jun WestJet
27 May - 12 Jun WestJet
26 May - 09 Jun WestJet direct
01 May - 06 May Delta direct
27 May - 10 Jun WestJet direct
19 May - 26 May Porter Airlines (Canada) Ltd
27 May - 18 Jun WestJet direct

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

Powered by

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.