AirHint found the following cheapest return flights from Boston (BOS) to Calgary (YYC)
in May 2025 (see full year ).
Return flights
14 May
- 18 May
WestJet
$ 167
direct
01 May
- 03 May
Air Canada
$ 223
02 May
- 08 May
United
$ 224
28 May
- 03 Jun
Spirit Airlines
$ 281
01 May
- 08 May
Spirit Airlines
$ 283
29 May
- 03 Jun
United
$ 287
30 May
- 06 Jun
Spirit Airlines
$ 305
27 May
- 31 May
Spirit Airlines
$ 312
30 May
- 07 Jun
Spirit Airlines
$ 312
21 May
- 28 May
Spirit Airlines
$ 332
21 May
- 30 May
Porter Airlines (Canada) Ltd
$ 337
23 May
- 26 May
Porter Airlines (Canada) Ltd
$ 344
23 May
- 27 May
Porter Airlines (Canada) Ltd
$ 359
23 May
- 26 May
WestJet
$ 409
direct
30 May
- 06 Jun
WestJet
$ 409
direct
Also check the deals for one-way flights from Boston to Calgary in May .
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.
