How to find the cheapest flight from
Illinois to Sydney (SYD)
How far in advance should I book a flight from Illinois to Sydney?
To save up to 16% on this flight, we recommend booking at least 46 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from Illinois to Sydney from $972 1-2 weeks out and tickets from $1,089 for flights departing within the next 72 hours.
What is the cheapest month to fly from Illinois to Sydney?
Our data shows that March tends to be the cheapest month to fly to Sydney from Illinois. Users have commonly found prices around $1,040 for the month, but tickets can be as low as $734. Due to multiple factors, prepare for potentially higher prices in December.
One-way flights to Sydney from Illinois
The cheapest one-way flights from Illinois to Sydney
7:00 am - 3:10 am
4:55 am - 8:20 am
Air New Zealand
Related info for your journey
Useful info, stats and facts about Illinois to Sydney flights.
Arrival points for flights from Illinois to Sydney
Destination information for Sydney
Things to know before you go. Useful info for your trip from Illinois to Sydney