$554+ Cheap flights from Chicago (CHI) 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 8/11. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — SYD
Jul 14 — Jul 211
Round-trip
1 adult, Economy
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Cheapest flights from Chicago to AustraliaExplore the most affordable flight options available from Chicago to Australia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 14, 2026.
Explore the most affordable flight options available from Chicago to Australia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 14, 2026.
This Trip.com deal was found by Cheapflights users on 6/11. 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.
Wed 8/57:15 am
ORD
- MEL
3 stops37h 45m
Multiple Airlines
Thu 9/31:20 pm
MEL
- ORD
2 stops31h 59m
Multiple Airlines
Deal found 6/11![Multiple Airlines logo]()
$1,197
This Trip.com deal was found by Cheapflights users on 6/10. 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.
Wed 7/17:20 am
ORD
- MEL
3 stops37h 40m
Multiple Airlines
Fri 7/311:30 pm
MEL
- ORD
2 stops31h 47m
Multiple Airlines
Deal found 6/10![Multiple Airlines logo]()
$1,198
This oojo deal was found by Cheapflights users on 6/10. 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.
Thu 12/106:17 pm
ORD
- MEL
2 stops29h 58m
Qantas Airways
Thu 1/711:15 pm
MEL
- ORD
1 stop32h 42m
Qantas Airways
Deal found 6/10![Qantas Airways logo]()
$1,199
This Trip.com deal was found by Cheapflights users on 6/9. 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.
Sat 8/19:28 am
ORD
- MEL
3 stops35h 32m
Multiple Airlines
Sat 8/151:30 pm
MEL
- ORD
2 stops31h 47m
Multiple Airlines
Deal found 6/9![Multiple Airlines logo]()
$1,250
This Trip.com deal was found by Cheapflights users on 6/9. 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.
Sat 8/16:05 am
MDW
- MEL
3 stops38h 55m
Multiple Airlines
Sat 8/151:30 pm
MEL
- MDW
3 stops35h 21m
Multiple Airlines
Deal found 6/9![Multiple Airlines logo]()
$1,273
This Trip.com deal was found by Cheapflights users on 6/11. 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.
Wed 8/511:06 am
MDW
- MEL
3 stops33h 54m
Multiple Airlines
Thu 9/31:20 pm
MEL
- MDW
3 stops36h 49m
Multiple Airlines
Deal found 6/11![Multiple Airlines logo]()
$1,285
This ANA deal was found by Cheapflights users on 6/10. 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 ANA is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/245:45 pm
ORD
- SYD
1 stop24h 40m
ANA
Fri 9/411:45 am
SYD
- ORD
2 stops32h 00m
ANA
Deal found 6/10![ANA logo]()
$1,305
This ANA deal was found by Cheapflights users on 6/13. 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 ANA is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/17:50 pm
ORD
- SYD
2 stops32h 20m
ANA
Tue 9/811:45 am
SYD
- ORD
2 stops32h 00m
ANA
Deal found 6/13![ANA logo]()
$1,308
This BusinessClass deal was found by Cheapflights users on 6/11. 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.
Fri 8/145:00 pm
ORD
- SYD
2 stops35h 10m
ANA
Sat 8/2911:45 am
SYD
- ORD
2 stops32h 00m
ANA
Deal found 6/11![ANA logo]()
$1,313
This Kiwi.com deal was found by Cheapflights users on 6/11. 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
1 stop43h 17m
Multiple Airlines
Mon 8/175:50 pm
SYD
- ORD
1 stop27h 27m
Multiple Airlines
Deal found 6/11![Multiple Airlines logo]()
$1,314
This KAYAK deal was found by Cheapflights users on 6/9. 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.
Fri 8/145:45 pm
ORD
- SYD
1 stop34h 25m
ANA
Wed 8/2611:45 am
SYD
- ORD
2 stops47h 48m
ANA
Deal found 6/9![ANA logo]()
$1,316
This KAYAK deal was found by Cheapflights users on 6/10. 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.
Tue 8/255:45 pm
ORD
- SYD
1 stop24h 40m
ANA
Tue 9/111:45 am
SYD
- ORD
2 stops47h 41m
ANA
Deal found 6/10![ANA logo]()
$1,317
Best flights from Chicago to AustraliaDiscover carefully curated flight deals from Chicago to Australia that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 14, 2026.
Discover carefully curated flight deals from Chicago to Australia that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 14, 2026.
This Trip.com deal was found by Cheapflights users on 6/9. 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.
Sat 8/16:05 am
MDW
- MEL
3 stops38h 55m
Multiple Airlines
Sat 8/151:30 pm
MEL
- MDW
3 stops35h 21m
Multiple Airlines
Deal found 6/9![Multiple Airlines logo]()
$1,273
This Air Canada deal was found by Cheapflights users on 6/9. 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 8/317:48 pm
ORD
- ADL
2 stops24h 52m
Air Canada
Tue 9/228:00 pm
ADL
- ORD
3 stops40h 35m
Air Canada
Deal found 6/9![Air Canada logo]()
$1,459
This United Airlines deal was found by Cheapflights users on 6/13. 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.
Mon 11/162:10 pm
ORD
- MEL
1 stop26h 20m
United Airlines
Tue 12/11:00 pm
MEL
- ORD
1 stop21h 04m
United Airlines
Deal found 6/13![United Airlines logo]()
$1,600
This Delta deal was found by Cheapflights users on 6/13. 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 9/252:55 pm
ORD
- MEL
1 stop25h 55m
Delta
Sun 10/411:00 am
MEL
- ORD
1 stop28h 21m
Delta
Deal found 6/13![Delta logo]()
$1,608
This oojo deal was found by Cheapflights users on 6/10. 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.
Mon 8/104:45 pm
ORD
- ADL
2 stops30h 25m
Air New Zealand
Wed 8/1912:05 pm
ADL
- ORD
2 stops25h 30m
Air New Zealand
Deal found 6/10![Air New Zealand logo]()
$1,634
This KAYAK deal was found by Cheapflights users on 6/9. 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 9/193:20 pm
ORD
- MEL
1 stop24h 25m
Qantas Airways
Sat 10/39:45 am
MEL
- ORD
1 stop25h 15m
Qantas Airways
Deal found 6/9![Qantas Airways logo]()
$1,642
This Alaska Airlines deal was found by Cheapflights users on 6/9. 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.
Sat 8/229:00 am
ORD
- SYD
3 stops31h 30m
Alaska Airlines
Fri 9/45:50 pm
SYD
- ORD
2 stops34h 36m
Alaska Airlines
Deal found 6/9![Alaska Airlines logo]()
$1,777
This Turkish Airlines deal was found by Cheapflights users on 6/13. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/158:10 pm
ORD
- MEL
2 stops32h 30m
Turkish Airlines
Wed 8/199:35 pm
MEL
- ORD
2 stops51h 05m
Turkish Airlines
Deal found 6/13![Turkish Airlines logo]()
$1,843
This Qatar Airways deal was found by Cheapflights users on 6/13. 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/157:20 pm
ORD
- MEL
1 stop35h 45m
Qatar Airways
Wed 8/194:10 pm
MEL
- ORD
1 stop37h 55m
Qatar Airways
Deal found 6/13![Qatar Airways logo]()
$1,923
This ANA deal was found by Cheapflights users on 6/12. 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 ANA is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/710:30 am
ORD
- PER
1 stop43h 40m
ANA
Tue 12/159:55 pm
PER
- ORD
2 stops34h 59m
ANA
Deal found 6/12![ANA logo]()
$2,245
This KAYAK deal was found by Cheapflights users on 6/12. 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 11/72:35 pm
ORD
- PER
1 stop42h 20m
Cathay Pacific
Tue 12/158:30 am
PER
- ORD
1 stop42h 25m
Cathay Pacific
Deal found 6/12![Cathay Pacific logo]()
$2,259
This Trip.com deal was found by Cheapflights users on 6/11. 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.
Wed 8/511:06 am
MDW
- MEL
3 stops33h 54m
Multiple Airlines
Thu 9/31:20 pm
MEL
- MDW
3 stops36h 49m
Multiple Airlines
Deal found 6/11![Multiple Airlines logo]()
$1,285
This KLM deal was found by Cheapflights users on 6/13. 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.
Tue 11/175:20 pm
ORD
- SYD
2 stops45h 15m
KLM
Tue 12/111:10 am
SYD
- ORD
3 stops44h 15m
KLM
Deal found 6/13![KLM logo]()
$2,665
This Air Canada deal was found by Cheapflights users on 6/11. 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
- ADL
2 stops31h 45m
Air Canada
Wed 8/196:55 pm
ADL
- ORD
2 stops34h 11m
Air Canada
Deal found 6/11![Air Canada logo]()
$1,487
This Air Canada deal was found by Cheapflights users on 6/13. 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 9/78:43 am
ORD
- BNE
2 stops31h 22m
Multiple Airlines
Sat 9/128:45 pm
BNE
- ORD
3 stops40h 20m
Multiple Airlines
Deal found 6/13![Multiple Airlines logo]()
$1,431
This United Airlines deal was found by Cheapflights users on 6/9. 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 10/164:05 pm
ORD
- MEL
1 stop25h 10m
United Airlines
Wed 11/411:30 am
MEL
- ORD
1 stop20h 07m
United Airlines
Deal found 6/9![United Airlines logo]()
$1,601
This Delta deal was found by Cheapflights users on 6/13. 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.
Sun 11/227:05 am
ORD
- MEL
2 stops33h 45m
Delta
Mon 11/3012:00 pm
MEL
- ORD
1 stop22h 21m
Delta
Deal found 6/13![Delta logo]()
$1,612
This lol.travel deal was found by Cheapflights users on 6/14. 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.
Fri 8/143:40 pm
ORD
- ADL
2 stops29h 00m
Air Canada
Mon 8/248:00 pm
ADL
- ORD
2 stops33h 06m
Air Canada
Deal found 6/14![Air Canada logo]()
$1,492
This Delta deal was found by Cheapflights users on 6/13. 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.
Tue 9/110:54 am
MDW
- SYD
2 stops28h 56m
Delta
Tue 9/89:15 am
SYD
- MDW
2 stops24h 04m
Delta
Deal found 6/13![Delta logo]()
$1,612
This United Airlines deal was found by Cheapflights users on 6/12. 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 10/17:44 am
ORD
- MEL
1 stop33h 31m
United Airlines
Thu 10/811:55 am
MEL
- ORD
1 stop24h 27m
United Airlines
Deal found 6/12![United Airlines logo]()
$1,689
This Alaska Airlines deal was found by Cheapflights users on 6/10. 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.
Tue 9/12:22 pm
ORD
- SYD
2 stops37h 28m
Multiple Airlines
Tue 9/88:45 pm
SYD
- ORD
3 stops24h 35m
Multiple Airlines
Deal found 6/10![Multiple Airlines logo]()
$1,536
This BusinessClass deal was found by Cheapflights users on 6/11. 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.
Tue 7/73:47 pm
ORD
- BNE
2 stops28h 18m
Air New Zealand
Wed 7/2212:20 pm
BNE
- ORD
2 stops27h 55m
Air New Zealand
Deal found 6/11![Air New Zealand logo]()
$1,892
This oojo deal was found by Cheapflights users on 6/14. 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.
Mon 8/107:20 pm
ORD
- ADL
1 stop29h 10m
Qatar Airways
Wed 8/197:40 am
ADL
- ORD
2 stops45h 55m
Qatar Airways
Deal found 6/14![Qatar Airways logo]()
$1,929
This Delta deal was found by Cheapflights users on 6/10. 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 9/256:30 pm
ORD
- MEL
1 stop22h 20m
Delta
Sun 10/1811:00 am
MEL
- ORD
2 stops25h 20m
Delta
Deal found 6/10![Delta logo]()
$1,613
This Alaska Airlines deal was found by Cheapflights users on 6/13. 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.
Wed 8/266:54 pm
ORD
- SYD
2 stops32h 56m
Multiple Airlines
Tue 9/18:45 pm
SYD
- ORD
2 stops31h 37m
Multiple Airlines
Deal found 6/13![Multiple Airlines logo]()
$1,548
This Air Canada deal was found by Cheapflights users on 6/13. 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.
Tue 7/73:40 pm
ORD
- BNE
1 stop24h 25m
Air Canada
Wed 7/2210:00 am
BNE
- ORD
1 stop19h 36m
Air Canada
Deal found 6/13![Air Canada logo]()
$1,742
This oojo deal was found by Cheapflights users on 6/10. 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 8/47:20 pm
ORD
- ADL
1 stop29h 40m
Qatar Airways
Tue 8/1811:50 am
ADL
- ORD
2 stops41h 45m
Qatar Airways
Deal found 6/10![Qatar Airways logo]()
$1,930
This United Airlines deal was found by Cheapflights users on 6/13. 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 12/117:45 am
ORD
- MEL
2 stops33h 15m
United Airlines
Wed 1/61:00 pm
MEL
- ORD
2 stops39h 27m
United Airlines
Deal found 6/13![United Airlines logo]()
$1,755
This Delta deal was found by Cheapflights users on 6/9. 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.
Sat 8/151:51 pm
MDW
- SYD
2 stops25h 59m
Delta
Sun 8/239:15 am
SYD
- MDW
2 stops23h 46m
Delta
Deal found 6/9![Delta logo]()
$1,613
This Qantas Airways deal was found by Cheapflights users on 6/9. 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.
Thu 7/97:08 pm
ORD
- PER
2 stops32h 52m
Qantas Airways
Mon 8/2410:30 am
PER
- ORD
2 stops26h 00m
Qantas Airways
Deal found 6/9![Qantas Airways logo]()
$2,186
Last-minute flights from Chicago to AustraliaDiscover last-minute flight deals from Chicago to Australia. Data last updated June 14, 2026 and is based on user searches.
Discover last-minute flight deals from Chicago to Australia. Data last updated June 14, 2026 and is based on user searches.
This Justfly.com deal was found by Cheapflights users on 6/12. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/143:40 pm
ORD
- ADL
2 stops29h 40m
Air Canada
Tue 6/306:55 pm
ADL
- ORD
2 stops34h 11m
Air Canada
Deal found 6/12![Air Canada logo]()
$1,450
This lol.travel deal was found by Cheapflights users on 6/13. 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.
Mon 6/1511:05 am
ORD
- BNE
2 stops29h 00m
Air Canada
Wed 7/110:00 am
BNE
- ORD
1 stop19h 36m
Air Canada
Deal found 6/13![Air Canada logo]()
$1,369
This Air Canada deal was found by Cheapflights users on 6/13. 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 6/153:40 pm
ORD
- SYD
1 stop24h 40m
Air Canada
Wed 7/19:20 am
SYD
- ORD
1 stop20h 16m
Air Canada
Deal found 6/13![Air Canada logo]()
$1,402
This lol.travel deal was found by Cheapflights users on 6/11. 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.
Sun 6/213:40 pm
ORD
- SYD
1 stop24h 40m
Air Canada
Tue 7/79:20 am
SYD
- ORD
1 stop20h 16m
Air Canada
Deal found 6/11![Air Canada logo]()
$1,323
This Trip.com deal was found by Cheapflights users on 6/10. 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.
Wed 7/17:20 am
ORD
- MEL
3 stops37h 40m
Multiple Airlines
Fri 7/311:30 pm
MEL
- ORD
2 stops31h 47m
Multiple Airlines
Deal found 6/10![Multiple Airlines logo]()
$1,198
This Air Canada deal was found by Cheapflights users on 6/12. 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 6/12![Air Canada logo]()
$1,394
This Kiwi.com deal was found by Cheapflights users on 6/12. 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 7/29:13 pm
ORD
- MEL
1 stop42h 32m
Multiple Airlines
Sat 7/259:45 am
MEL
- ORD
1 stop35h 32m
Multiple Airlines
Deal found 6/12![Multiple Airlines logo]()
$1,320
This FlightHub deal was found by Cheapflights users on 6/13. 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.
Fri 7/37:45 pm
ORD
- MEL
2 stops25h 50m
Multiple Airlines
Sat 7/116:00 pm
MEL
- ORD
2 stops35h 36m
Multiple Airlines
Deal found 6/13![Multiple Airlines logo]()
$1,492
This Air Canada deal was found by Cheapflights users on 6/12. 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 6/12![Air Canada logo]()
$1,396
This Air Canada deal was found by Cheapflights users on 6/12. 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 7/273:40 pm
ORD
- MEL
2 stops28h 40m
Air Canada
Mon 8/38:30 pm
MEL
- ORD
2 stops33h 06m
Air Canada
Deal found 6/12![Air Canada logo]()
$1,449
This Justfly.com deal was found by Cheapflights users on 6/11. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/283:40 pm
ORD
- BNE
1 stop24h 25m
Air Canada
Tue 9/1510:15 am
BNE
- ORD
2 stops38h 28m
Air Canada
Deal found 6/11![Air Canada logo]()
$1,391
This Air Canada deal was found by Cheapflights users on 6/9. 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.
Tue 7/288:45 am
ORD
- SYD
2 stops31h 35m
Air Canada
Tue 9/159:20 am
SYD
- ORD
1 stop20h 23m
Air Canada
Deal found 6/9![Air Canada logo]()
$1,400
One-way flights from Chicago to AustraliaSearch for one-way flight options from Chicago to Australia. Find affordable one-way fares based on user searches. Data last updated June 14, 2026.
Search for one-way flight options from Chicago to Australia. Find affordable one-way fares based on user searches. Data last updated June 14, 2026.
This Kiwi.com deal was found by Cheapflights users on 6/11. 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
- SYD
1 stop43h 17m
Multiple Airlines
Deal found 6/11![Multiple Airlines logo]()
$554
This BusinessClass deal was found by Cheapflights users on 6/10. 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.
Sat 9/56:18 pm
ORD
- MEL
2 stops34h 02m
Multiple Airlines
Deal found 6/10![Multiple Airlines logo]()
$609
This Kiwi.com deal was found by Cheapflights users on 6/12. 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 8/219:07 pm
ORD
- MEL
3 stops59h 18m
Multiple Airlines
Deal found 6/12![Multiple Airlines logo]()
$619
This Kiwi.com deal was found by Cheapflights users on 6/10. 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
- AVV
3 stops51h 07m
Multiple Airlines
Deal found 6/10![Multiple Airlines logo]()
$629
This BusinessClass deal was found by Cheapflights users on 6/10. 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.
Wed 7/298:59 pm
ORD
- MEL
2 stops55h 21m
Multiple Airlines
Deal found 6/10![Multiple Airlines logo]()
$633
This Kiwi.com deal was found by Cheapflights users on 6/12. 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 8/219:07 pm
ORD
- AVV
3 stops51h 13m
Multiple Airlines
Deal found 6/12![Multiple Airlines logo]()
$638
This Kiwi.com deal was found by Cheapflights users on 6/12. 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 9/1310:40 pm
ORD
- SYD
3 stops43h 45m
Multiple Airlines
Deal found 6/12![Multiple Airlines logo]()
$645
This Kiwi.com deal was found by Cheapflights users on 6/11. 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 8/57:20 am
ORD
- BNE
2 stops30h 40m
Multiple Airlines
Deal found 6/11![Multiple Airlines logo]()
$646
This Kiwi.com deal was found by Cheapflights users on 6/11. 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
- SYD
2 stops41h 50m
Multiple Airlines
Deal found 6/11![Multiple Airlines logo]()
$653
This Kiwi.com deal was found by Cheapflights users on 6/13. 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 8/189:07 pm
ORD
- BNE
1 stop40h 53m
Multiple Airlines
Deal found 6/13![Multiple Airlines logo]()
$653
This Trip.com deal was found by Cheapflights users on 6/13. 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.
Tue 8/259:07 pm
ORD
- SYD
2 stops55h 03m
Multiple Airlines
Deal found 6/13![Multiple Airlines logo]()
$656
This Kiwi.com deal was found by Cheapflights users on 6/9. 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.
Mon 10/266:00 am
ORD
- MEL
2 stops35h 30m
Multiple Airlines
Deal found 6/9![Multiple Airlines logo]()
$660
Find flight deals from Chicago to Australia
Keep the following information in mind while searching for Chicago to Australia flight deals. Data was last updated June 14, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $1,197 (Trip.com) |
One-way from | $554 (Kiwi.com) |
Popular in | December |
Cheapest in | February |
Average price | $1,384 |
Cheapflights Fare Finder
Customize your flight search to find flights from Chicago 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 14, 2026.
Use the filters below to find and compare flights from Chicago to Australia that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
ChicagoMelbourne
MDW - MEL
MDWMEL
Chicago Midway
Sat 8/1
6:05 am-12:00 pm
3 stops38h 55m
Melbourne
Sat 8/15
1:30 pm-9:51 am
3 stops35h 21m
$1,273
ChicagoMelbourne
MDW - MEL
MDWMEL
Chicago Midway
Wed 8/5
11:06 am-12:00 pm
3 stops33h 54m
Melbourne
Thu 9/3
1:20 pm-11:09 am
3 stops36h 49m
$1,285
ChicagoBrisbane
ORD - BNE
ORDBNE
Chicago O'Hare Intl
Mon 9/7
8:43 am-7:05 am
2 stops31h 22m
Brisbane
Sat 9/12
8:45 pm-10:05 pm
3 stops40h 20m
$1,431
ChicagoAdelaide
ORD - ADL
ORDADL
Chicago O'Hare Intl
Mon 8/31
7:48 pm-11:10 am
2 stops24h 52m
Adelaide
Tue 9/22
8:00 pm-10:05 pm
3 stops40h 35m
$1,459
ChicagoAdelaide
ORD - ADL
ORDADL
Chicago O'Hare Intl
Mon 8/10
3:40 pm-1:55 pm
2 stops31h 45m
Adelaide
Wed 8/19
6:55 pm-2:36 pm
2 stops34h 11m
$1,487
ChicagoAdelaide
ORD - ADL
ORDADL
Chicago O'Hare Intl
Fri 8/14
3:40 pm-11:10 am
2 stops29h 00m
Adelaide
Mon 8/24
8:00 pm-2:36 pm
2 stops33h 06m
$1,492
ChicagoSydney
ORD - SYD
ORDSYD
Chicago O'Hare Intl
Tue 9/1
2:22 pm-6:50 pm
2 stops37h 28m
Sydney Kingsford Smith
Tue 9/8
8:45 pm-6:20 am
3 stops24h 35m
$1,536
ChicagoSydney
ORD - SYD
ORDSYD
Chicago O'Hare Intl
Wed 8/26
6:54 pm-6:50 pm
2 stops32h 56m
Sydney Kingsford Smith
Tue 9/1
8:45 pm-1:22 pm
2 stops31h 37m
$1,548
ChicagoMelbourne
ORD - MEL
ORDMEL
Chicago O'Hare Intl
Mon 11/16
2:10 pm-9:30 am
1 stop26h 20m
Melbourne
Tue 12/1
1:00 pm-5:04 pm
1 stop21h 04m
$1,600
ChicagoMelbourne
ORD - MEL
ORDMEL
Chicago O'Hare Intl
Fri 10/16
4:05 pm-9:15 am
1 stop25h 10m
Melbourne
Wed 11/4
11:30 am-2:37 pm
1 stop20h 07m
$1,601
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Chicago to Australia
Have a flexible travel schedule? Discover the best time to fly to Australia from Chicago with our price prediction graph.
ORD-MEL
ORD-SYD
ORD-BNE
ORD-ADL
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 to Australia
CHI-AU0
ORD-MEL
ORD-SYD
ORD-BNE
ORD-ADL
What is the cheapest month to book a flight from Chicago to Australia?
Currently, November is the cheapest month in which you can book a flight from Chicago to Australia (average of $113). Flying from Chicago to Australia in April is currently the most expensive (average of $716). 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 to Australia?
To ensure you get the cheapest price possible for a flight from Chicago to Australia, you should look to book at least 47 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
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 14, 2026.
See what other customers who have flown with Air New Zealand,Qantas Airways, andUnited Airlines from Chicago to Australia have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
7.4
Comfort
7.9
Food
7.4
Crew
8.5
Boarding
8.2
Overall
8.0
Reviews
1 / 20
6.0
GoodAnonymous,Mar 2026
SIN - AKL
Entertainment
7.4
Comfort
7.9
Food
7.4
Crew
8.5
Boarding
8.2
Overall
8.0
Reviews
1 / 20
6.0
GoodAnonymous,Mar 2026
SIN - AKL
Entertainment
7.4
Comfort
7.9
Food
7.4
Crew
8.5
Boarding
8.2
Overall
8.0
Reviews
1 / 20
6.0
GoodAnonymous,Mar 2026
SIN - AKL
Entertainment
7.4
Comfort
7.9
Food
7.4
Crew
8.5
Boarding
8.2
Overall
8.0
Reviews
1 / 20
6.0
GoodAnonymous,Mar 2026
SIN - AKL
Entertainment
7.4
Comfort
7.9
Food
7.4
Crew
8.5
Boarding
8.2
Overall
8.0
Reviews
1 / 20
6.0
GoodAnonymous,Mar 2026
SIN - AKL
Entertainment
7.4
Comfort
7.9
Food
7.4
Crew
8.5
Boarding
8.2
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 Chicago 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 Chicago 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 Chicago to Australia by cabin class
Find flights from Chicago to Australia, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Chicago and Australia flights
Browse other Chicago and Australia flight options. Last updated on June 14, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Chicago to Australia flights
Consider these flights traveling from Chicago to Australia.
Fly to Australia regions
Consider these flights traveling to Australia regions.
Top 10 airlines flying from Chicago to Australia
Discover the top 10 airlines that operate flights from Chicago 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 14, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$198 | Average$1,537 | 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$1,169 | 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% |