Cheapest return flights from Chicago to Sydney in May from 825€

AirHint found the following cheapest return flights from Chicago (ORD) to Sydney (SYD) in May 2026 (see full year).

Return flights

16 May - 23 May Spirit Airlines
07 May - 14 May Spirit Airlines
03 May - 10 May Spirit Airlines
11 May - 10 Jun Spirit Airlines
14 May - 27 May Spirit Airlines
16 May - 26 May Spirit Airlines
22 May - 31 May Spirit Airlines
08 May - 16 May Spirit Airlines
08 May - 20 May Spirit Airlines
30 May - 13 Jun Spirit Airlines
27 May - 06 Jun Air Canada
24 May - 31 May Air Canada

Also check the deals for one-way flights from Chicago to Sydney in May.

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