$484+ Cheap flights from O'Hare Intl (ORD) to Australia
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/5. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — SYD
Jul 24 — Jul 311
Round-trip
1 adult, Economy
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Cheapest flights from O'Hare Intl to AustraliaExplore the most affordable flight options available from O'Hare Intl to Australia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 24, 2026.
Explore the most affordable flight options available from O'Hare Intl to Australia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 24, 2026.
This Trip.com deal was found by Cheapflights users on 6/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/249:20 am
ORD
- SYD
3 stops35h 30m
Multiple Airlines
Tue 9/86:15 am
SYD
- ORD
2 stops39h 02m
Multiple Airlines
Deal found 6/23![Multiple Airlines logo]()
$1,073
This Trip.com deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/189:26 am
ORD
- BNE
3 stops34h 09m
Multiple Airlines
Mon 10/511:50 am
BNE
- ORD
3 stops37h 11m
Multiple Airlines
Deal found 6/19![Multiple Airlines logo]()
$1,112
This Bravofly deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Bravofly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/108:30 pm
ORD
- SYD
2 stops31h 40m
ANA
Wed 8/2611:45 am
SYD
- ORD
2 stops32h 00m
ANA
Deal found 6/20![ANA logo]()
$1,213
This Kiwi.com deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/89:13 pm
ORD
- SYD
2 stops47h 37m
Multiple Airlines
Tue 8/185:50 pm
SYD
- ORD
1 stop27h 27m
Multiple Airlines
Deal found 6/21![Multiple Airlines logo]()
$1,217
This Kiwi.com deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/59:13 pm
ORD
- SYD
2 stops47h 37m
Multiple Airlines
Tue 8/185:50 pm
SYD
- ORD
1 stop27h 27m
Multiple Airlines
Deal found 6/21![Multiple Airlines logo]()
$1,218
This Kiwi.com deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/239:20 pm
ORD
- SYD
2 stops47h 30m
Multiple Airlines
Sat 9/55:50 pm
SYD
- ORD
1 stop27h 27m
Multiple Airlines
Deal found 6/21![Multiple Airlines logo]()
$1,235
This lol.travel deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/137:50 pm
ORD
- SYD
2 stops32h 20m
ANA
Thu 8/2711:45 am
SYD
- ORD
1 stop35h 55m
ANA
Deal found 6/21![ANA logo]()
$1,243
This Rumbo deal was found by Cheapflights users on 6/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Rumbo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/135:45 pm
ORD
- SYD
1 stop34h 25m
ANA
Sat 8/298:55 pm
SYD
- ORD
1 stop33h 00m
ANA
Deal found 6/24![ANA logo]()
$1,247
This Kiwi.com deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/59:13 pm
ORD
- SYD
2 stops47h 37m
Multiple Airlines
Fri 8/145:50 pm
SYD
- ORD
1 stop27h 27m
Multiple Airlines
Deal found 6/21![Multiple Airlines logo]()
$1,258
This Kiwi.com deal was found by Cheapflights users on 6/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/189:20 pm
ORD
- MEL
2 stops47h 40m
Multiple Airlines
Tue 8/259:45 am
MEL
- ORD
1 stop35h 32m
Multiple Airlines
Deal found 6/24![Multiple Airlines logo]()
$1,311
This oojo deal was found by Cheapflights users on 6/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/113:00 pm
ORD
- MEL
2 stops28h 55m
Air New Zealand
Tue 8/2512:10 pm
MEL
- ORD
2 stops24h 20m
Air New Zealand
Deal found 6/23![Air New Zealand logo]()
$1,312
This Kiwi.com deal was found by Cheapflights users on 6/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/119:13 pm
ORD
- MEL
2 stops47h 47m
Multiple Airlines
Tue 8/259:45 am
MEL
- ORD
1 stop35h 32m
Multiple Airlines
Deal found 6/23![Multiple Airlines logo]()
$1,315
Best flights from O'Hare Intl to AustraliaDiscover carefully curated flight deals from O'Hare Intl to Australia that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 24, 2026.
Discover carefully curated flight deals from O'Hare Intl to Australia that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 24, 2026.
This Cheapflightsfares deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/185:45 pm
ORD
- SYD
1 stop34h 25m
ANA
Sat 10/249:45 pm
SYD
- ORD
1 stop26h 35m
ANA
Deal found 6/19![ANA logo]()
$1,269
This FlightHub deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/242:00 pm
ORD
- ADL
3 stops35h 40m
Air Canada
Tue 12/16:10 am
ADL
- ORD
2 stops25h 01m
Air Canada
Deal found 6/20![Air Canada logo]()
$1,452
This Air New Zealand deal was found by Cheapflights users on 6/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air New Zealand is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/272:40 pm
ORD
- MEL
2 stops27h 15m
Air New Zealand
Mon 12/148:00 am
MEL
- ORD
2 stops27h 54m
Air New Zealand
Deal found 6/22![Air New Zealand logo]()
$1,461
This KAYAK deal was found by Cheapflights users on 6/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/163:40 pm
ORD
- AVV
2 stops29h 25m
Multiple Airlines
Mon 11/306:00 am
AVV
- ORD
2 stops25h 41m
Multiple Airlines
Deal found 6/23![Multiple Airlines logo]()
$1,470
This United Airlines deal was found by Cheapflights users on 6/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/134:20 pm
ORD
- MEL
1 stop24h 55m
United Airlines
Wed 8/2610:55 am
MEL
- ORD
1 stop24h 45m
United Airlines
Deal found 6/22![United Airlines logo]()
$1,591
This Delta deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/205:30 am
ORD
- BNE
2 stops34h 50m
Delta
Wed 12/210:40 am
BNE
- ORD
1 stop19h 07m
Delta
Deal found 6/19![Delta logo]()
$1,608
This Qantas Airways deal was found by Cheapflights users on 6/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Qantas Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/51:51 pm
ORD
- SYD
1 stop26h 09m
Qantas Airways
Fri 1/811:15 am
SYD
- ORD
1 stop29h 44m
Qantas Airways
Deal found 6/22![Qantas Airways logo]()
$1,654
This Alaska Airlines deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/22:22 pm
ORD
- SYD
2 stops24h 03m
Alaska Airlines
Wed 10/146:50 pm
SYD
- ORD
3 stops27h 30m
Alaska Airlines
Deal found 6/20![Alaska Airlines logo]()
$1,804
This oojo deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/217:20 pm
ORD
- PER
1 stop34h 15m
Qatar Airways
Mon 8/3110:45 pm
PER
- ORD
1 stop29h 20m
Qatar Airways
Deal found 6/19![Qatar Airways logo]()
$1,974
This KLM deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/194:25 pm
ORD
- BNE
2 stops45h 30m
KLM
Wed 12/27:20 am
BNE
- ORD
3 stops47h 05m
KLM
Deal found 6/19![KLM logo]()
$2,674
This Cathay Pacific deal was found by Cheapflights users on 6/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/234:00 pm
ORD
- CBR
2 stops53h 10m
Cathay Pacific
Tue 7/288:35 am
CBR
- ORD
2 stops68h 45m
Cathay Pacific
Deal found 6/22![Cathay Pacific logo]()
$2,762
This Priceline deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/33:40 pm
ORD
- ADL
2 stops29h 00m
Air Canada
Mon 8/108:00 pm
ADL
- ORD
3 stops40h 35m
Air Canada
Deal found 6/19![Air Canada logo]()
$1,459
This Air Canada deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/167:45 pm
ORD
- ADL
2 stops26h 15m
Multiple Airlines
Sun 10/256:10 am
ADL
- ORD
2 stops24h 01m
Multiple Airlines
Deal found 6/21![Multiple Airlines logo]()
$1,475
This United Airlines deal was found by Cheapflights users on 6/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/2510:35 am
ORD
- MEL
1 stop30h 40m
United Airlines
Thu 9/310:55 am
MEL
- ORD
1 stop24h 31m
United Airlines
Deal found 6/24![United Airlines logo]()
$1,600
This Delta deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/307:40 pm
ORD
- MEL
2 stops45h 10m
Delta
Wed 11/1112:00 pm
MEL
- ORD
2 stops26h 10m
Delta
Deal found 6/21![Delta logo]()
$1,612
This Air Canada deal was found by Cheapflights users on 6/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/107:40 pm
ORD
- ADL
2 stops32h 00m
Air Canada
Wed 8/198:00 pm
ADL
- ORD
2 stops33h 06m
Air Canada
Deal found 6/24![Air Canada logo]()
$1,486
This Qantas Airways deal was found by Cheapflights users on 6/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Qantas Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/56:17 pm
ORD
- SYD
1 stop21h 43m
Qantas Airways
Sat 1/911:15 am
SYD
- ORD
1 stop27h 08m
Qantas Airways
Deal found 6/22![Qantas Airways logo]()
$1,654
This BusinessClass deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/64:45 pm
ORD
- BNE
2 stops27h 20m
Air New Zealand
Sat 8/87:35 pm
BNE
- ORD
2 stops50h 41m
Air New Zealand
Deal found 6/21![Air New Zealand logo]()
$1,660
This United Airlines deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/162:32 pm
ORD
- MEL
1 stop26h 43m
United Airlines
Sun 10/2511:45 am
MEL
- ORD
1 stop22h 44m
United Airlines
Deal found 6/21![United Airlines logo]()
$1,600
This Ovago deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/223:40 pm
ORD
- AVV
2 stops31h 10m
Multiple Airlines
Sat 12/510:20 am
AVV
- ORD
2 stops45h 21m
Multiple Airlines
Deal found 6/19![Multiple Airlines logo]()
$1,621
This Qantas Airways deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Qantas Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/193:20 pm
ORD
- BNE
1 stop22h 40m
Qantas Airways
Sat 10/38:35 pm
BNE
- ORD
1 stop32h 45m
Qantas Airways
Deal found 6/19![Qantas Airways logo]()
$1,662
This United Airlines deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/303:35 pm
ORD
- MEL
1 stop25h 40m
United Airlines
Wed 10/1410:30 am
MEL
- ORD
1 stop28h 25m
United Airlines
Deal found 6/19![United Airlines logo]()
$1,601
This Air New Zealand deal was found by Cheapflights users on 6/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air New Zealand is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/54:05 pm
ORD
- PER
2 stops34h 55m
Air New Zealand
Wed 8/127:50 pm
PER
- ORD
2 stops42h 09m
Air New Zealand
Deal found 6/24![Air New Zealand logo]()
$1,769
This Air Canada deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/203:40 pm
ORD
- HBA
2 stops34h 10m
Multiple Airlines
Sun 11/297:30 pm
HBA
- ORD
2 stops36h 11m
Multiple Airlines
Deal found 6/21![Multiple Airlines logo]()
$1,670
This Trip.com deal was found by Cheapflights users on 6/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/107:20 pm
ORD
- PER
1 stop34h 15m
Qatar Airways
Tue 8/2510:45 pm
PER
- ORD
1 stop29h 20m
Qatar Airways
Deal found 6/23![Qatar Airways logo]()
$2,037
This Air Canada deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/103:40 pm
ORD
- PER
2 stops41h 00m
Air Canada
Tue 8/255:15 pm
PER
- ORD
2 stops34h 21m
Air Canada
Deal found 6/21![Air Canada logo]()
$1,685
This Qantas Airways deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Qantas Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/183:20 pm
ORD
- BNE
1 stop22h 40m
Qantas Airways
Thu 10/86:55 am
BNE
- ORD
2 stops26h 29m
Qantas Airways
Deal found 6/19![Qantas Airways logo]()
$1,692
This United Airlines deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/143:00 pm
ORD
- MEL
1 stop25h 30m
United Airlines
Thu 9/1010:55 am
MEL
- ORD
1 stop20h 41m
United Airlines
Deal found 6/19![United Airlines logo]()
$1,601
This Delta deal was found by Cheapflights users on 6/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/227:45 am
ORD
- MEL
2 stops33h 05m
Delta
Wed 7/2910:00 am
MEL
- ORD
1 stop28h 18m
Delta
Deal found 6/23![Delta logo]()
$1,962
This Trip.com deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/317:20 pm
ORD
- PER
1 stop34h 15m
Qatar Airways
Fri 8/1410:45 pm
PER
- ORD
1 stop29h 20m
Qatar Airways
Deal found 6/21![Qatar Airways logo]()
$2,041
Last-minute flights from O'Hare Intl to AustraliaDiscover last-minute flight deals from O'Hare Intl to Australia. Data last updated June 24, 2026 and is based on user searches.
Discover last-minute flight deals from O'Hare Intl to Australia. Data last updated June 24, 2026 and is based on user searches.
This Air Canada deal was found by Cheapflights users on 6/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/13:40 pm
ORD
- BNE
1 stop24h 25m
Air Canada
Tue 7/710:15 am
BNE
- ORD
1 stop19h 21m
Air Canada
Deal found 6/22![Air Canada logo]()
$1,394
This Air Canada deal was found by Cheapflights users on 6/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/53:40 pm
ORD
- SYD
1 stop24h 40m
Air Canada
Wed 7/299:20 am
SYD
- ORD
1 stop20h 16m
Air Canada
Deal found 6/24![Air Canada logo]()
$1,396
This Air Canada deal was found by Cheapflights users on 6/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/58:45 am
ORD
- BNE
1 stop31h 20m
Air Canada
Sun 7/1910:00 am
BNE
- ORD
2 stops42h 07m
Air Canada
Deal found 6/23![Air Canada logo]()
$1,402
This Kiwi.com deal was found by Cheapflights users on 6/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/79:28 am
ORD
- SYD
2 stops35h 22m
Multiple Airlines
Tue 7/215:50 pm
SYD
- ORD
1 stop27h 27m
Multiple Airlines
Deal found 6/23![Multiple Airlines logo]()
$1,350
This KAYAK deal was found by Cheapflights users on 6/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/186:29 pm
ORD
- MEL
2 stops33h 51m
Multiple Airlines
Sat 8/227:30 am
MEL
- ORD
2 stops28h 46m
Multiple Airlines
Deal found 6/24![Multiple Airlines logo]()
$1,317
This Kiwi.com deal was found by Cheapflights users on 6/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/219:28 am
ORD
- SYD
2 stops35h 22m
Multiple Airlines
Tue 7/285:50 pm
SYD
- ORD
1 stop27h 27m
Multiple Airlines
Deal found 6/23![Multiple Airlines logo]()
$1,321
This Kiwi.com deal was found by Cheapflights users on 6/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/239:28 am
ORD
- SYD
2 stops35h 22m
Multiple Airlines
Thu 7/305:50 pm
SYD
- ORD
1 stop27h 27m
Multiple Airlines
Deal found 6/22![Multiple Airlines logo]()
$1,358
This Kiwi.com deal was found by Cheapflights users on 6/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/309:13 pm
ORD
- SYD
2 stops47h 37m
Multiple Airlines
Mon 8/35:50 pm
SYD
- ORD
1 stop27h 27m
Multiple Airlines
Deal found 6/22![Multiple Airlines logo]()
$1,275
This KAYAK deal was found by Cheapflights users on 6/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/308:51 am
ORD
- MEL
2 stops35h 04m
Air New Zealand
Mon 8/318:35 am
MEL
- ORD
2 stops27h 55m
Air New Zealand
Deal found 6/23![Air New Zealand logo]()
$1,394
This Kiwi.com deal was found by Cheapflights users on 6/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/309:13 pm
ORD
- MEL
2 stops58h 22m
Multiple Airlines
Mon 8/319:45 am
MEL
- ORD
1 stop35h 32m
Multiple Airlines
Deal found 6/23![Multiple Airlines logo]()
$1,395
This oojo deal was found by Cheapflights users on 6/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/319:40 pm
ORD
- SYD
2 stops44h 05m
Air New Zealand
Wed 8/1211:55 am
SYD
- ORD
2 stops24h 35m
Air New Zealand
Deal found 6/24![Air New Zealand logo]()
$1,370
This oojo deal was found by Cheapflights users on 6/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/319:40 pm
ORD
- SYD
2 stops46h 00m
Air New Zealand
Sun 8/97:05 pm
SYD
- ORD
2 stops41h 35m
Air New Zealand
Deal found 6/22![Air New Zealand logo]()
$1,390
One-way flights from O'Hare Intl to AustraliaSearch for one-way flight options from O'Hare Intl to Australia. Find affordable one-way fares based on user searches. Data last updated June 24, 2026.
Search for one-way flight options from O'Hare Intl to Australia. Find affordable one-way fares based on user searches. Data last updated June 24, 2026.
This Kiwi.com deal was found by Cheapflights users on 6/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/59:20 pm
ORD
- BNE
2 stops46h 15m
Multiple Airlines
Deal found 6/23![Multiple Airlines logo]()
$484
This Kiwi.com deal was found by Cheapflights users on 6/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/19:13 pm
ORD
- MEL
2 stops48h 12m
Multiple Airlines
Deal found 6/24![Multiple Airlines logo]()
$487
This Kiwi.com deal was found by Cheapflights users on 6/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/289:13 pm
ORD
- SYD
2 stops47h 37m
Multiple Airlines
Deal found 6/24![Multiple Airlines logo]()
$493
This Kiwi.com deal was found by Cheapflights users on 6/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/19:13 pm
ORD
- SYD
2 stops47h 37m
Multiple Airlines
Deal found 6/24![Multiple Airlines logo]()
$494
This Kiwi.com deal was found by Cheapflights users on 6/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/289:13 pm
ORD
- BNE
2 stops46h 22m
Multiple Airlines
Deal found 6/24![Multiple Airlines logo]()
$494
This Kiwi.com deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/299:13 pm
ORD
- MEL
2 stops47h 47m
Multiple Airlines
Deal found 6/21![Multiple Airlines logo]()
$499
This Kiwi.com deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/129:20 am
ORD
- SYD
3 stops35h 30m
Multiple Airlines
Deal found 6/21![Multiple Airlines logo]()
$528
This Kiwi.com deal was found by Cheapflights users on 6/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/79:13 pm
ORD
- SYD
2 stops47h 37m
Multiple Airlines
Deal found 6/23![Multiple Airlines logo]()
$531
This Kiwi.com deal was found by Cheapflights users on 6/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/1510:40 pm
ORD
- BNE
3 stops44h 55m
Multiple Airlines
Deal found 6/22![Multiple Airlines logo]()
$538
This Kiwi.com deal was found by Cheapflights users on 6/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/299:13 pm
ORD
- SYD
3 stops58h 02m
Multiple Airlines
Deal found 6/24![Multiple Airlines logo]()
$542
This Kiwi.com deal was found by Cheapflights users on 6/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/28:45 am
ORD
- MEL
3 stops36h 15m
Multiple Airlines
Deal found 6/24![Multiple Airlines logo]()
$546
This Kiwi.com deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/236:30 am
ORD
- MEL
3 stops38h 30m
Multiple Airlines
Deal found 6/21![Multiple Airlines logo]()
$551
Find flight deals from O'Hare Intl to Australia
Keep the following information in mind while searching for O'Hare Intl to Australia flight deals. Data was last updated June 24, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $1,073 (Trip.com) |
One-way from | $484 (Kiwi.com) |
Popular in | December |
Cheapest in | February |
Average price | $1,384 |
Cheapflights Fare Finder
Customize your flight search to find flights from O'Hare Intl to Australia that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated June 24, 2026.
Use the filters below to find and compare flights from Chicago O'Hare Intl Airport to Australia that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
ChicagoSydney
ORD - SYD
ORDSYD
Chicago O'Hare Intl
Sun 10/18
5:45 pm-8:10 pm
1 stop34h 25m
Sydney Kingsford Smith
Sat 10/24
9:45 pm-8:20 am
1 stop26h 35m
$1,269
ChicagoAdelaide
ORD - ADL
ORDADL
Chicago O'Hare Intl
Tue 11/24
2:00 pm-6:10 pm
3 stops35h 40m
Adelaide
Tue 12/1
6:10 am-2:41 pm
2 stops25h 01m
$1,452
ChicagoAdelaide
ORD - ADL
ORDADL
Chicago O'Hare Intl
Mon 8/3
3:40 pm-11:10 am
2 stops29h 00m
Adelaide
Mon 8/10
8:00 pm-10:05 pm
3 stops40h 35m
$1,459
ChicagoMelbourne
ORD - MEL
ORDMEL
Chicago O'Hare Intl
Fri 11/27
2:40 pm-10:55 am
2 stops27h 15m
Melbourne
Mon 12/14
8:00 am-6:54 pm
2 stops27h 54m
$1,461
ChicagoMelbourne
ORD - AVV
ORDAVV
Chicago O'Hare Intl
Mon 11/16
3:40 pm-2:05 pm
2 stops29h 25m
Melbourne Avalon
Mon 11/30
6:00 am-2:41 pm
2 stops25h 41m
$1,470
ChicagoAdelaide
ORD - ADL
ORDADL
Chicago O'Hare Intl
Fri 10/16
7:45 pm-1:30 pm
2 stops26h 15m
Adelaide
Sun 10/25
6:10 am-2:41 pm
2 stops24h 01m
$1,475
ChicagoAdelaide
ORD - ADL
ORDADL
Chicago O'Hare Intl
Mon 8/10
7:40 pm-6:10 pm
2 stops32h 00m
Adelaide
Wed 8/19
8:00 pm-2:36 pm
2 stops33h 06m
$1,486
ChicagoMelbourne
ORD - MEL
ORDMEL
Chicago O'Hare Intl
Thu 8/13
4:20 pm-8:15 am
1 stop24h 55m
Melbourne
Wed 8/26
10:55 am-8:40 pm
1 stop24h 45m
$1,591
ChicagoMelbourne
ORD - MEL
ORDMEL
Chicago O'Hare Intl
Tue 8/25
10:35 am-8:15 am
1 stop30h 40m
Melbourne
Thu 9/3
10:55 am-8:26 pm
1 stop24h 31m
$1,600
ChicagoMelbourne
ORD - MEL
ORDMEL
Chicago O'Hare Intl
Fri 10/16
2:32 pm-9:15 am
1 stop26h 43m
Melbourne
Sun 10/25
11:45 am-6:29 pm
1 stop22h 44m
$1,600
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from O'Hare Intl to Australia
Have a flexible travel schedule? Discover the best time to fly to Australia from O'Hare Intl with our price prediction graph.
ORD-SYD
ORD-BNE
ORD-MEL
ORD-PER
ORD-AVV
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Chicago O'Hare Intl Airport to Australia
ORD-AU0
ORD-SYD
ORD-BNE
ORD-MEL
ORD-PER
What is the cheapest month to book a flight from Chicago O'Hare Intl Airport to Australia?
Currently, November is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Australia (average of $113). Flying from Chicago O'Hare Intl Airport to Australia in July is currently the most expensive (average of $768). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
How far ahead should I book a flight from Chicago O'Hare Intl Airport to Australia?
The price you pay for your flight from Chicago O'Hare Intl Airport to Australia may vary depending on when you book. For the best chance of a lower fare, look to book 46 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
Reviews of airlines servicing Australia
Get insights into the airlines that provide service to Australia. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Australia. Reviews last updated June 24, 2026.
Peruse reviews from past customers who have flown with Air New Zealand,Qantas Airways, andUnited Airlines from Chicago O'Hare Intl Airport to Australia to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Food
7.4
Comfort
7.9
Boarding
8.2
Crew
8.5
Entertainment
7.4
Overall
8.0
Reviews
1 / 20
6.0
GoodAnonymous,Mar 2026
SIN - AKL
Food
7.4
Comfort
7.9
Boarding
8.2
Crew
8.5
Entertainment
7.4
Overall
8.0
Reviews
1 / 20
6.0
GoodAnonymous,Mar 2026
SIN - AKL
Food
7.4
Comfort
7.9
Boarding
8.2
Crew
8.5
Entertainment
7.4
Overall
8.0
Reviews
1 / 20
6.0
GoodAnonymous,Mar 2026
SIN - AKL
Food
7.4
Comfort
7.9
Boarding
8.2
Crew
8.5
Entertainment
7.4
Overall
8.0
Reviews
1 / 20
6.0
GoodAnonymous,Mar 2026
SIN - AKL
Food
7.4
Comfort
7.9
Boarding
8.2
Crew
8.5
Entertainment
7.4
Overall
8.0
Reviews
1 / 20
6.0
GoodAnonymous,Mar 2026
SIN - AKL
Food
7.4
Comfort
7.9
Boarding
8.2
Crew
8.5
Entertainment
7.4
Overall
8.0
Reviews
1 / 20
6.0
GoodAnonymous,Mar 2026
SIN - AKL
Related info for your journey
Find useful and relevant information for your journey from O'Hare Intl to Australia. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for O'Hare Intl to Australia
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Australia by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from O'Hare Intl to Australia by cabin class
Find flights from O'Hare Intl to Australia, based on your preferred cabin class, be it economy, premium economy, business, or first class.
O'Hare Intl and Australia flights
Browse other O'Hare Intl and Australia flight options. Last updated on June 24, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Fly to Australia regions
Consider these flights traveling to Australia regions.
Top 10 airlines flying from O'Hare Intl to Australia
Discover the top 10 airlines that operate flights from O'Hare Intl to Australia. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated June 24, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$198 | Average$1,536 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$261 | Average$1,547 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$712 | Average$1,137 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$716 | Average$1,185 | FlexibilityNo cancel fee | On-time74% | |
| Cheapest$836 | Average$1,525 | FlexibilityNo cancel fee | On-time74% | |
| Cheapest$870 | Average$1,700 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$1,193 | Average$1,288 | FlexibilityNo cancel fee | On-time80% | |
| Cheapest$1,263 | Average$1,762 | FlexibilityNo cancel fee | On-time68% | |
| Cheapest$1,264 | Average$1,566 | FlexibilityNo cancel fee | On-time78% | |
| Cheapest$1,560 | Average$1,973 | FlexibilityNo cancel fee | On-time72% |