Cheapest return flights from Chicago to Sydney in April from $908

Best time to book flights for Chicago (ORD) to Sydney (SYD) flights at AirHint

AirHint found the following cheapest return flights from Chicago (ORD) to Sydney (SYD) in April 2025 (see full year).

Return flights

01 Apr - 20 Apr Frontier Airlines
08 Apr - 21 Apr Frontier Airlines
17 Apr - 24 Apr Spirit Airlines
17 Apr - 21 Apr Spirit Airlines
12 Apr - 26 Apr Frontier Airlines
25 Apr - 02 May Spirit Airlines
14 Apr - 22 Apr Air Canada
15 Apr - 22 Apr Air Canada
17 Apr - 22 Apr Fiji Airways
07 Apr - 14 Apr Spirit Airlines
15 Apr - 19 Apr Air Canada
18 Apr - 03 May Spirit Airlines
25 Apr - 09 May Spirit Airlines
27 Apr - 04 May Spirit Airlines

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

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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