Cheapest return flights from Chicago to Calgary in October from 194€

AirHint found the following cheapest return flights from Chicago (ORD) to Calgary (YYC) in October 2025 (see full year).

Return flights

30 Oct - 02 Nov WestJet direct
29 Oct - 01 Nov United direct
19 Oct - 22 Oct United
18 Oct - 24 Oct Air Canada
31 Oct - 07 Nov WestJet direct
19 Oct - 22 Oct Air Canada direct
24 Oct - 26 Oct Delta direct
19 Oct - 21 Oct Air Canada
23 Oct - 27 Oct Delta direct
23 Oct - 26 Oct Delta direct
25 Oct - 27 Oct Delta direct
25 Oct - 27 Oct WestJet
24 Oct - 27 Oct WestJet

Also check the deals for one-way flights from Chicago to Calgary in October.

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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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