Cheapest one-way flights from Chicago to Sydney in April from $451
AirHint found the following cheapest one-way flights from Chicago (ORD) to Sydney (SYD) in April 2025 (see full year).
One-Way flights
| 10 Apr | Spirit Airlines | ||
| 02 Apr | Alaska Airlines | ||
| 08 Apr | Frontier Airlines | ||
| 09 Apr | Spirit Airlines | ||
| 11 Apr | Spirit Airlines | ||
| 15 Apr | Frontier Airlines |
Also check the deals for return flights from Chicago to Sydney in April.
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.
