Travelers have found it’s best to book a flight 29 days in advance to save up to 54% compared to booking the same week of travel. As your travel date approaches, the cost of this flight route may potentially increase. While opting to book 29 days out may not be an option for all, there are still additional ways to secure a deal in the near future. You might find a flight from Illinois to Sydney 1-2 weeks in advance for as low as $1,220, or $1,417 for flights within the next 24 hours.
Flights from Illinois to Sydney lean towards being more expensive in December. Prices are generally better when you fly from Illinois to Sydney in February, with the cheapest ticket starting at $711.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Illinois to Sydney as you normally would.
Fly from
Fly to
Budget
$1,202 - $1,555
Route
Depart
Return
Price
Chicago O'Hare IntlSydney Kingsford Smith
ORD - SYD
ORDSYD
Chicago O'Hare Intl
Tue 8/20
2 stops29h 00m
Sydney Kingsford Smith
Tue 8/27
2 stops25h 50m
Chicago O'Hare IntlSydney Kingsford Smith
ORD - SYD
ORDSYD
Chicago O'Hare Intl
Sun 8/11
2 stops41h 05m
Sydney Kingsford Smith
Sun 8/18
1 stop48h 33m
Chicago O'Hare IntlSydney Kingsford Smith
ORD - SYD
ORDSYD
Chicago O'Hare Intl
Mon 11/4
1 stop23h 55m
Sydney Kingsford Smith
Sun 11/10
1 stop21h 21m
Chicago O'Hare IntlSydney Kingsford Smith
ORD - SYD
ORDSYD
Chicago O'Hare Intl
Thu 10/3
1 stop25h 40m
Sydney Kingsford Smith
Wed 10/16
1 stop32h 05m
Lambert-St LouisSydney Kingsford Smith
STL - SYD
STLSYD
Lambert-St Louis
Sun 7/28
1 stop33h 36m
Sydney Kingsford Smith
Sun 8/11
2 stops26h 28m
Lambert-St LouisSydney Kingsford Smith
STL - SYD
STLSYD
Lambert-St Louis
Sun 7/28
2 stops26h 15m
Sydney Kingsford Smith
Sun 8/11
2 stops22h 07m
Chicago O'Hare IntlSydney Kingsford Smith
ORD - SYD
ORDSYD
Chicago O'Hare Intl
Tue 8/6
1 stop34h 30m
Sydney Kingsford Smith
Tue 8/20
2 stops32h 43m
Lambert-St LouisSydney Kingsford Smith
STL - SYD
STLSYD
Lambert-St Louis
Mon 8/12
1 stop33h 05m
Sydney Kingsford Smith
Sat 8/17
1 stop28h 27m
Chicago O'Hare IntlSydney Kingsford Smith
ORD - SYD
ORDSYD
Chicago O'Hare Intl
Sun 9/22
2 stops35h 35m
Sydney Kingsford Smith
Wed 10/2
2 stops33h 46m
No data available for this route at this time. Please check back soon.
Food
Overall
Boarding
Entertainment
Comfort
Crew
Reviews
This particular Delta Air Lines flight may not have met your expectations in terms of the food served on board. It appears that the portions were smaller than anticipated and the side dishes were minimal- no salad, no bread rolls, no fruits. Perhaps there are ways in which the airline could improve the dining experience for their passengers. Why can't Delta offer better customer service when other non American airlines are able to do it?
Food
Overall
Boarding
Entertainment
Comfort
Crew
Reviews
This particular Delta Air Lines flight may not have met your expectations in terms of the food served on board. It appears that the portions were smaller than anticipated and the side dishes were minimal- no salad, no bread rolls, no fruits. Perhaps there are ways in which the airline could improve the dining experience for their passengers. Why can't Delta offer better customer service when other non American airlines are able to do it?
Food
Overall
Boarding
Entertainment
Comfort
Crew
Reviews
This particular Delta Air Lines flight may not have met your expectations in terms of the food served on board. It appears that the portions were smaller than anticipated and the side dishes were minimal- no salad, no bread rolls, no fruits. Perhaps there are ways in which the airline could improve the dining experience for their passengers. Why can't Delta offer better customer service when other non American airlines are able to do it?
Food
Overall
Boarding
Entertainment
Comfort
Crew
Reviews
This particular Delta Air Lines flight may not have met your expectations in terms of the food served on board. It appears that the portions were smaller than anticipated and the side dishes were minimal- no salad, no bread rolls, no fruits. Perhaps there are ways in which the airline could improve the dining experience for their passengers. Why can't Delta offer better customer service when other non American airlines are able to do it?
Food
Overall
Boarding
Entertainment
Comfort
Crew
Reviews
This particular Delta Air Lines flight may not have met your expectations in terms of the food served on board. It appears that the portions were smaller than anticipated and the side dishes were minimal- no salad, no bread rolls, no fruits. Perhaps there are ways in which the airline could improve the dining experience for their passengers. Why can't Delta offer better customer service when other non American airlines are able to do it?
Food
Overall
Boarding
Entertainment
Comfort
Crew
Reviews
This particular Delta Air Lines flight may not have met your expectations in terms of the food served on board. It appears that the portions were smaller than anticipated and the side dishes were minimal- no salad, no bread rolls, no fruits. Perhaps there are ways in which the airline could improve the dining experience for their passengers. Why can't Delta offer better customer service when other non American airlines are able to do it?
Airline | Cheapest | Average | Flexibility | On-time |
---|---|---|---|---|
American Airlines | Cheapest$420 | Average$1,872 | FlexibilityNo cancel fee | On-time71% |
Fiji Airways | Cheapest$739 | Average$1,183 | FlexibilityNo cancel fee | On-time74% |
United Airlines | Cheapest$871 | Average$1,678 | FlexibilityNo cancel fee | On-time69% |
Qantas Airways | Cheapest$951 | Average$1,530 | FlexibilityNo cancel fee | On-time74% |
Delta | Cheapest$966 | Average$1,636 | FlexibilityNo cancel fee | On-timeN/A |
Air Canada | Cheapest$1,001 | Average$1,338 | FlexibilityNo cancel fee | On-time67% |
Cathay Pacific | Cheapest$1,138 | Average$1,244 | FlexibilityNo cancel fee | On-time72% |
Air New Zealand | Cheapest$1,213 | Average$1,615 | FlexibilityNo cancel fee | On-time78% |
ANA | Cheapest$1,349 | Average$2,078 | FlexibilityNo cancel fee | On-time80% |
British Airways | Cheapest$1,387 | Average$1,553 | FlexibilityNo cancel fee | On-time70% |