Flyus.com searches for the lowest fares from hundreds of airlines to offer you cheap, competitive airfares to your desired destinations, no matter where you're headed. Tell us where you want to go and our interactive Price Tracker tool will point you to the best time to fly to save you time and money!
Chicago (ORD) » Australia » ORD to SYD
Good to Know - Flights from Chicago to Sydney
September
Best time to beat the crowds
March
Most popular time to fly
$ 740.61
or less (round trip)
Top Tips for Finding Cheap Flights from Chicago to Sydney
Looking for cheap airfare from Chicago to Sydney? 25% of our users found round-trip tickets to Sydney for the following price or less: $ 740.61 Book at least 4 weeks before departure in order to get a below-average price. High season is considered to be March. The cheapest month to fly from Chicago to Sydney is September. Enter your preferred departure airport and travel dates into the search form above to unlock the latest Chicago to Sydney flight deals.
FAQs - Booking from Chicago to Sydney flights
A flight from Chicago to Sydney takes 1day2hours.
The cheapest flight Chicago to Sydney found on flyus.com in the last 72 hours was $740.61 round-trip.
Find cheap flights from Chicago to Sydney and book discounted airfare from different cities all over the United States. Explore airline ticket deals on flight routes all over the World! At Flyus, we take pride in helping you discover and book the best flight deals for your next trip at the cheapest price. We make booking flights from different departures easy and provide you with peace of mind with our Best Purchase Guarantee.
Cheapest Flights
from Chicago, United States (ORD) to:
-
Sydney, Australia (SYD)Aug 18, 25 - Aug 25, 25$740.61
-
Sydney, Australia (SYD)May 27, 25 - Jun 03, 25$841.11
-
Sydney, Australia (SYD)Apr 07, 25 - Apr 22, 25$841.11
-
Sydney, Australia (SYD)Feb 19, 25 - Apr 24, 25$849.11
-
Sydney, Australia (SYD)Feb 09, 25 - Feb 17, 25$850.71
