$610+ 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
Aug 30 — Sep 61
Round-trip
1 adult, Economy
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Find cheap flights from Chicago to Australia with Cheapflights
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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 July 31, 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 July 31, 2026.
This Trip.com deal was found by Cheapflights users on 7/28. 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 9/117:20 pm
ORD
- BNE
1 stop31h 10m
Qatar Airways
Fri 9/1810:10 pm
BNE
- ORD
1 stop31h 55m
Qatar Airways
Deal found 7/28![Qatar Airways logo]()
$841
This Trip.com deal was found by Cheapflights users on 7/28. 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 10/237:20 pm
ORD
- MEL
1 stop30h 30m
Qatar Airways
Sat 11/711:40 pm
MEL
- ORD
1 stop31h 50m
Qatar Airways
Deal found 7/28![Qatar Airways logo]()
$862
This Air Canada deal was found by Cheapflights users on 7/26. 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 9/93:40 pm
ORD
- BNE
1 stop24h 25m
Air Canada
Wed 9/1610:00 am
BNE
- ORD
1 stop19h 43m
Air Canada
Deal found 7/26![Air Canada logo]()
$1,082
This oojo deal was found by Cheapflights users on 7/27. 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 8/103:54 pm
ORD
- MEL
1 stop22h 06m
Qantas Airways
Mon 8/171:35 pm
MEL
- ORD
1 stop21h 55m
Qantas Airways
Deal found 7/27![Qantas Airways logo]()
$1,092
This Justfly.com deal was found by Cheapflights users on 7/26. 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 9/203:40 pm
ORD
- BNE
1 stop24h 25m
Air Canada
Mon 10/510:00 am
BNE
- ORD
1 stop19h 43m
Air Canada
Deal found 7/26![Air Canada logo]()
$1,092
This Justfly.com deal was found by Cheapflights users on 7/26. 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.
Mon 9/213:40 pm
ORD
- BNE
1 stop24h 25m
Air Canada
Sun 10/410:00 am
BNE
- ORD
2 stops25h 12m
Air Canada
Deal found 7/26![Air Canada logo]()
$1,095
This Kiwi.com deal was found by Cheapflights users on 7/25. 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 8/103:54 pm
ORD
- MEL
1 stop22h 06m
Qantas Airways
Mon 8/249:45 am
MEL
- ORD
1 stop22h 06m
Qantas Airways
Deal found 7/25![Qantas Airways logo]()
$1,106
This Gotogate deal was found by Cheapflights users on 7/25. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/213:40 pm
ORD
- MEL
2 stops28h 25m
Air Canada
Mon 9/286:00 am
MEL
- ORD
2 stops23h 43m
Air Canada
Deal found 7/25![Air Canada logo]()
$1,112
This oojo deal was found by Cheapflights users on 7/26. 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 8/189:00 am
ORD
- MEL
1 stop30h 45m
Qantas Airways
Sun 8/2311:30 am
MEL
- ORD
1 stop27h 00m
Qantas Airways
Deal found 7/26![Qantas Airways logo]()
$1,114
This oojo deal was found by Cheapflights users on 7/26. 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.
Sun 11/86:59 am
ORD
- MEL
1 stop29h 01m
Qantas Airways
Wed 11/1810:45 pm
MEL
- ORD
1 stop35h 15m
Qantas Airways
Deal found 7/26![Qantas Airways logo]()
$1,115
This American Airlines deal was found by Cheapflights users on 7/26. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/1011:49 am
ORD
- MEL
1 stop27h 56m
American Airlines
Mon 8/179:45 am
MEL
- ORD
1 stop21h 09m
American Airlines
Deal found 7/26![American Airlines logo]()
$1,117
This American Airlines deal was found by Cheapflights users on 7/25. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/226:55 am
ORD
- MEL
1 stop32h 50m
American Airlines
Tue 9/299:45 am
MEL
- ORD
1 stop29h 45m
American Airlines
Deal found 7/25![American Airlines logo]()
$1,118
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 July 31, 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 July 31, 2026.
This Air Canada deal was found by Cheapflights users on 7/25. 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 9/711:05 am
ORD
- BNE
2 stops29h 00m
Multiple Airlines
Sat 9/128:45 pm
BNE
- ORD
3 stops38h 03m
Multiple Airlines
Deal found 7/25![Multiple Airlines logo]()
$1,123
This Delta deal was found by Cheapflights users on 7/26. 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 9/95:37 pm
MDW
- MEL
2 stops23h 13m
Delta
Wed 9/1610:00 am
MEL
- MDW
2 stops27h 44m
Delta
Deal found 7/26![Delta logo]()
$1,140
This lol.travel deal was found by Cheapflights users on 7/25. 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.
Tue 9/83:40 pm
ORD
- ADL
2 stops29h 40m
Air Canada
Tue 9/158:00 pm
ADL
- ORD
2 stops33h 13m
Air Canada
Deal found 7/25![Air Canada logo]()
$1,197
This oojo deal was found by Cheapflights users on 7/27. 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 8/103:54 pm
ORD
- ADL
2 stops27h 01m
Qantas Airways
Wed 8/196:00 am
ADL
- ORD
2 stops25h 21m
Qantas Airways
Deal found 7/27![Qantas Airways logo]()
$1,240
This United Airlines deal was found by Cheapflights users on 7/25. 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 1/412:56 pm
ORD
- MEL
2 stops28h 34m
United Airlines
Fri 1/2212:45 pm
MEL
- ORD
2 stops23h 58m
United Airlines
Deal found 7/25![United Airlines logo]()
$1,344
This oojo deal was found by Cheapflights users on 7/26. 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 1/266:50 pm
ORD
- ADL
2 stops44h 40m
Qatar Airways
Sat 2/1310:00 pm
ADL
- ORD
1 stop33h 00m
Qatar Airways
Deal found 7/26![Qatar Airways logo]()
$1,369
This Turkish Airlines deal was found by Cheapflights users on 7/27. 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.
Wed 12/308:15 pm
ORD
- MEL
2 stops31h 25m
Turkish Airlines
Mon 1/2510:35 pm
MEL
- ORD
2 stops52h 25m
Turkish Airlines
Deal found 7/27![Turkish Airlines logo]()
$1,578
This Alaska Airlines deal was found by Cheapflights users on 7/28. 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 9/158:00 am
ORD
- SYD
2 stops32h 30m
Alaska Airlines
Wed 9/235:50 pm
SYD
- ORD
3 stops27h 30m
Alaska Airlines
Deal found 7/28![Alaska Airlines logo]()
$2,230
This JetBlue deal was found by Cheapflights users on 7/26. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/97:20 pm
ORD
- BNE
1 stop31h 10m
JetBlue
Wed 9/1610:10 pm
BNE
- ORD
1 stop31h 55m
JetBlue
Deal found 7/26![JetBlue logo]()
$2,278
This Delta deal was found by Cheapflights users on 7/26. 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 9/115:03 pm
MDW
- SYD
2 stops22h 47m
Delta
Sun 9/209:15 am
SYD
- MDW
2 stops28h 29m
Delta
Deal found 7/26![Delta logo]()
$1,225
This Justfly.com deal was found by Cheapflights users on 7/26. 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 1/261:10 pm
ORD
- ADL
2 stops40h 50m
Air Canada
Sat 2/136:10 am
ADL
- ORD
2 stops24h 52m
Air Canada
Deal found 7/26![Air Canada logo]()
$1,254
This Qantas Airways deal was found by Cheapflights users on 7/26. 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.
Wed 9/97:03 pm
ORD
- ADL
2 stops25h 32m
Multiple Airlines
Wed 9/166:00 am
ADL
- ORD
2 stops24h 23m
Multiple Airlines
Deal found 7/26![Multiple Airlines logo]()
$1,287
This KLM deal was found by Cheapflights users on 7/26. 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.
Sat 11/146:25 pm
ORD
- SYD
2 stops44h 10m
KLM
Sun 11/2911:45 am
SYD
- ORD
3 stops43h 40m
KLM
Deal found 7/26![KLM logo]()
$2,662
This Delta deal was found by Cheapflights users on 7/26. 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.
Thu 8/1312:46 pm
MDW
- SYD
2 stops27h 04m
Delta
Tue 8/259:15 am
SYD
- MDW
2 stops24h 18m
Delta
Deal found 7/26![Delta logo]()
$1,225
This United Airlines deal was found by Cheapflights users on 7/25. 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.
Sat 11/214:01 pm
ORD
- HBA
2 stops28h 39m
United Airlines
Sun 11/299:20 pm
HBA
- ORD
2 stops55h 04m
United Airlines
Deal found 7/25![United Airlines logo]()
$1,370
This Qatar Airways deal was found by Cheapflights users on 7/25. 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.
Tue 9/87:20 pm
ORD
- ADL
1 stop29h 10m
Qatar Airways
Tue 9/156:50 pm
ADL
- ORD
2 stops34h 45m
Qatar Airways
Deal found 7/25![Qatar Airways logo]()
$1,435
This Qantas Airways deal was found by Cheapflights users on 7/27. 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.
Sun 11/153:52 pm
ORD
- HBA
2 stops25h 53m
Multiple Airlines
Sun 12/65:50 pm
HBA
- ORD
2 stops28h 10m
Multiple Airlines
Deal found 7/27![Multiple Airlines logo]()
$1,347
This United Airlines deal was found by Cheapflights users on 7/25. 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 11/194:35 pm
ORD
- HBA
2 stops28h 05m
United Airlines
Sun 11/299:20 pm
HBA
- ORD
2 stops55h 04m
United Airlines
Deal found 7/25![United Airlines logo]()
$1,370
This Emirates deal was found by Cheapflights users on 7/26. 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 Emirates is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/98:35 pm
ORD
- BNE
2 stops42h 25m
Emirates
Wed 9/1611:40 am
BNE
- ORD
2 stops43h 05m
Emirates
Deal found 7/26![Emirates logo]()
$3,096
This FlightHub deal was found by Cheapflights users on 7/25. 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.
Sun 1/31:52 pm
ORD
- HBA
2 stops38h 58m
Qantas Airways
Sun 1/174:55 pm
HBA
- ORD
2 stops44h 05m
Qantas Airways
Deal found 7/25![Qantas Airways logo]()
$1,557
This Qatar Airways deal was found by Cheapflights users on 7/25. 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.
Wed 9/97:20 pm
ORD
- ADL
1 stop29h 10m
Qatar Airways
Wed 9/165:50 pm
ADL
- ORD
2 stops35h 45m
Qatar Airways
Deal found 7/25![Qatar Airways logo]()
$1,439
This Air Canada deal was found by Cheapflights users on 7/30. 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 9/133:40 pm
ORD
- CNS
2 stops28h 30m
Air Canada
Sun 9/206:00 am
CNS
- ORD
2 stops23h 43m
Air Canada
Deal found 7/30![Air Canada logo]()
$1,449
This Qantas Airways deal was found by Cheapflights users on 7/26. 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.
Wed 9/96:00 pm
ORD
- HBA
2 stops25h 45m
Multiple Airlines
Wed 9/166:00 am
HBA
- ORD
2 stops24h 53m
Multiple Airlines
Deal found 7/26![Multiple Airlines logo]()
$1,350
This United Airlines deal was found by Cheapflights users on 7/25. 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 11/261:25 pm
ORD
- MEL
1 stop28h 05m
United Airlines
Sat 12/1211:30 am
MEL
- ORD
1 stop20h 07m
United Airlines
Deal found 7/25![United Airlines logo]()
$1,426
This Delta deal was found by Cheapflights users on 7/26. 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 11/1812:40 pm
ORD
- SYD
2 stops26h 50m
Delta
Mon 12/710:40 am
SYD
- ORD
2 stops26h 45m
Delta
Deal found 7/26![Delta logo]()
$1,468
This oojo deal was found by Cheapflights users on 7/26. 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.
Wed 8/1211:49 am
ORD
- AVV
2 stops44h 01m
Multiple Airlines
Mon 8/178:55 pm
AVV
- ORD
2 stops47h 18m
Multiple Airlines
Deal found 7/26![Multiple Airlines logo]()
$1,357
This Trip.com deal was found by Cheapflights users on 7/25. 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 9/77:20 pm
ORD
- BNE
1 stop31h 10m
Qatar Airways
Sat 9/1210:10 pm
BNE
- ORD
1 stop31h 55m
Qatar Airways
Deal found 7/25![Qatar Airways logo]()
$1,509
This Delta deal was found by Cheapflights users on 7/26. 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 7/26![Delta logo]()
$1,469
This Qantas Airways deal was found by Cheapflights users on 7/30. 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 12/116:55 pm
ORD
- MEL
2 stops26h 10m
Qantas Airways
Wed 1/610:45 pm
MEL
- ORD
1 stop35h 06m
Qantas Airways
Deal found 7/30![Qantas Airways logo]()
$1,785
This oojo deal was found by Cheapflights users on 7/27. 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 8/107:00 pm
ORD
- AVV
2 stops36h 50m
Multiple Airlines
Mon 8/178:55 pm
AVV
- ORD
2 stops33h 59m
Multiple Airlines
Deal found 7/27![Multiple Airlines logo]()
$1,397
Last-minute flights from Chicago to AustraliaDiscover last-minute flight deals from Chicago to Australia. Data last updated July 31, 2026 and is based on user searches.
Discover last-minute flight deals from Chicago to Australia. Data last updated July 31, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 7/26. 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 8/33:26 pm
ORD
- MEL
2 stops25h 04m
United Airlines
Tue 8/1810:55 am
MEL
- ORD
1 stop20h 41m
United Airlines
Deal found 7/26![United Airlines logo]()
$1,144
This oojo deal was found by Cheapflights users on 7/27. 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 8/103:54 pm
ORD
- MEL
1 stop22h 06m
Qantas Airways
Mon 8/171:35 pm
MEL
- ORD
1 stop21h 55m
Qantas Airways
Deal found 7/27![Qantas Airways logo]()
$1,092
This Kiwi.com deal was found by Cheapflights users on 7/25. 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 8/103:54 pm
ORD
- MEL
1 stop22h 06m
Qantas Airways
Mon 8/249:45 am
MEL
- ORD
1 stop22h 06m
Qantas Airways
Deal found 7/25![Qantas Airways logo]()
$1,106
This American Airlines deal was found by Cheapflights users on 7/26. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/1011:49 am
ORD
- MEL
1 stop27h 56m
American Airlines
Mon 8/179:45 am
MEL
- ORD
1 stop21h 09m
American Airlines
Deal found 7/26![American Airlines logo]()
$1,117
This FlightHub deal was found by Cheapflights users on 7/26. 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.
Mon 8/103:40 pm
ORD
- MEL
2 stops28h 25m
Multiple Airlines
Mon 8/176:00 am
MEL
- ORD
2 stops23h 36m
Multiple Airlines
Deal found 7/26![Multiple Airlines logo]()
$1,120
This American Airlines deal was found by Cheapflights users on 7/25. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/103:22 pm
ORD
- MEL
1 stop24h 23m
American Airlines
Mon 8/249:45 am
MEL
- ORD
2 stops23h 16m
American Airlines
Deal found 7/25![American Airlines logo]()
$1,124
This United Airlines deal was found by Cheapflights users on 7/25. 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 8/103:50 pm
ORD
- BNE
1 stop23h 40m
United Airlines
Mon 8/246:55 am
BNE
- ORD
2 stops26h 37m
United Airlines
Deal found 7/25![United Airlines logo]()
$1,162
This United Airlines deal was found by Cheapflights users on 7/26. 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 8/126:20 pm
ORD
- MEL
1 stop22h 55m
United Airlines
Mon 8/1710:55 am
MEL
- ORD
1 stop20h 41m
United Airlines
Deal found 7/26![United Airlines logo]()
$1,140
This FlightHub deal was found by Cheapflights users on 7/26. 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.
Mon 8/173:40 pm
ORD
- MEL
2 stops28h 40m
Multiple Airlines
Mon 9/78:30 pm
MEL
- ORD
2 stops33h 13m
Multiple Airlines
Deal found 7/26![Multiple Airlines logo]()
$1,125
This Air Canada deal was found by Cheapflights users on 7/26. 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 8/177:48 pm
ORD
- MEL
2 stops24h 32m
Air Canada
Mon 9/78:30 pm
MEL
- ORD
3 stops38h 18m
Air Canada
Deal found 7/26![Air Canada logo]()
$1,139
This oojo deal was found by Cheapflights users on 7/26. 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 8/189:00 am
ORD
- MEL
1 stop30h 45m
Qantas Airways
Sun 8/2311:30 am
MEL
- ORD
1 stop27h 00m
Qantas Airways
Deal found 7/26![Qantas Airways logo]()
$1,114
This Expedia deal was found by Cheapflights users on 7/26. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/182:15 pm
ORD
- MEL
3 stops30h 20m
Air Canada
Sun 8/238:45 pm
MEL
- ORD
2 stops32h 51m
Air Canada
Deal found 7/26![Air Canada logo]()
$1,138
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 July 31, 2026.
Search for one-way flight options from Chicago to Australia. Find affordable one-way fares based on user searches. Data last updated July 31, 2026.
This Kiwi.com deal was found by Cheapflights users on 7/30. 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 8/115:46 pm
MDW
- SYD
3 stops37h 29m
Multiple Airlines
Deal found 7/30![Multiple Airlines logo]()
$610
This Kiwi.com deal was found by Cheapflights users on 7/28. 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 8/119:20 am
ORD
- SYD
3 stops43h 45m
Multiple Airlines
Deal found 7/28![Multiple Airlines logo]()
$614
This Trip.com deal was found by Cheapflights users on 7/28. 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 pm
ORD
- SYD
3 stops54h 50m
Multiple Airlines
Deal found 7/28![Multiple Airlines logo]()
$634
This Trip.com deal was found by Cheapflights users on 7/29. 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 8/269:20 pm
ORD
- SYD
2 stops54h 50m
Multiple Airlines
Deal found 7/29![Multiple Airlines logo]()
$642
This Kiwi.com deal was found by Cheapflights users on 7/28. 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 8/279:20 am
ORD
- AVV
3 stops39h 00m
Multiple Airlines
Deal found 7/28![Multiple Airlines logo]()
$647
This Kiwi.com deal was found by Cheapflights users on 7/26. 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 12/38:00 am
ORD
- BNE
2 stops29h 50m
Multiple Airlines
Deal found 7/26![Multiple Airlines logo]()
$653
This Kiwi.com deal was found by Cheapflights users on 7/26. 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 8/279:20 am
ORD
- SYD
3 stops55h 10m
Multiple Airlines
Deal found 7/26![Multiple Airlines logo]()
$655
This BusinessClass deal was found by Cheapflights users on 7/28. 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 8/199:05 pm
ORD
- MEL
2 stops55h 15m
Multiple Airlines
Deal found 7/28![Multiple Airlines logo]()
$657
This Kiwi.com deal was found by Cheapflights users on 7/28. 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 8/279:20 am
ORD
- MEL
3 stops57h 15m
Multiple Airlines
Deal found 7/28![Multiple Airlines logo]()
$659
This Kiwi.com deal was found by Cheapflights users on 7/26. 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 9/96:30 am
ORD
- SYD
3 stops45h 40m
Multiple Airlines
Deal found 7/26![Multiple Airlines logo]()
$661
This Kiwi.com deal was found by Cheapflights users on 7/29. 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 9/1012:10 pm
ORD
- MEL
2 stops44h 00m
Multiple Airlines
Deal found 7/29![Multiple Airlines logo]()
$672
This Kiwi.com deal was found by Cheapflights users on 7/30. 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
3 stops35h 15m
Multiple Airlines
Deal found 7/30![Multiple Airlines logo]()
$673
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 July 31, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $841 (Trip.com) |
One-way from | $610 (Kiwi.com) |
Popular in | September |
Cheapest in | February |
Average price | $1,544 |
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 July 31, 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
ChicagoBrisbane
ORD - BNE
ORDBNE
Chicago O'Hare Intl
Mon 9/7
11:05 am-7:05 am
2 stops29h 00m
Brisbane
Sat 9/12
8:45 pm-7:48 pm
3 stops38h 03m
$1,123
ChicagoMelbourne
MDW - MEL
MDWMEL
Chicago Midway
Wed 9/9
5:37 pm-7:50 am
2 stops23h 13m
Melbourne
Wed 9/16
10:00 am-10:44 pm
2 stops27h 44m
$1,140
ChicagoAdelaide
ORD - ADL
ORDADL
Chicago O'Hare Intl
Tue 9/8
3:40 pm-11:50 am
2 stops29h 40m
Adelaide
Tue 9/15
8:00 pm-2:43 pm
2 stops33h 13m
$1,197
ChicagoSydney
MDW - SYD
MDWSYD
Chicago Midway
Fri 9/11
5:03 pm-6:50 am
2 stops22h 47m
Sydney Kingsford Smith
Sun 9/20
9:15 am-10:44 pm
2 stops28h 29m
$1,225
ChicagoSydney
MDW - SYD
MDWSYD
Chicago Midway
Thu 8/13
12:46 pm-6:50 am
2 stops27h 04m
Sydney Kingsford Smith
Tue 8/25
9:15 am-6:33 pm
2 stops24h 18m
$1,225
ChicagoAdelaide
ORD - ADL
ORDADL
Chicago O'Hare Intl
Mon 8/10
3:54 pm-9:25 am
2 stops27h 01m
Adelaide
Wed 8/19
6:00 am-4:51 pm
2 stops25h 21m
$1,240
ChicagoAdelaide
ORD - ADL
ORDADL
Chicago O'Hare Intl
Tue 1/26
1:10 pm-10:30 pm
2 stops40h 50m
Adelaide
Sat 2/13
6:10 am-2:32 pm
2 stops24h 52m
$1,254
ChicagoAdelaide
ORD - ADL
ORDADL
Chicago O'Hare Intl
Wed 9/9
7:03 pm-11:05 am
2 stops25h 32m
Adelaide
Wed 9/16
6:00 am-3:53 pm
2 stops24h 23m
$1,287
ChicagoMelbourne
ORD - MEL
ORDMEL
Chicago O'Hare Intl
Mon 1/4
12:56 pm-10:30 am
2 stops28h 34m
Melbourne
Fri 1/22
12:45 pm-7:43 pm
2 stops23h 58m
$1,344
ChicagoHobart
ORD - HBA
ORDHBA
Chicago O'Hare Intl
Sun 11/15
3:52 pm-10:45 am
2 stops25h 53m
Hobart
Sun 12/6
5:50 pm-5:00 am
2 stops28h 10m
$1,347
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-BNE
MDW-MEL
ORD-ADL
ORD-MEL
ORD-SYD
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-BNE
MDW-MEL
ORD-ADL
ORD-MEL
What is the cheapest month to book a flight from Chicago to Australia?
Currently, February is the cheapest month in which you can book a flight from Chicago to Australia (average of $1,262). Flying from Chicago to Australia in December is currently the most expensive (average of $1,732). 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 37 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 July 31, 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.
Boarding
8.2
Comfort
7.9
Food
7.5
Overall
8.0
Crew
8.5
Entertainment
7.4
Reviews
1 / 20
10.0
ExcellentDebra,Mar 2026
HNL - AKL
Boarding
8.2
Comfort
7.9
Food
7.5
Overall
8.0
Crew
8.5
Entertainment
7.4
Reviews
1 / 20
10.0
ExcellentDebra,Mar 2026
HNL - AKL
Boarding
8.2
Comfort
7.9
Food
7.5
Overall
8.0
Crew
8.5
Entertainment
7.4
Reviews
1 / 20
10.0
ExcellentDebra,Mar 2026
HNL - AKL
Boarding
8.2
Comfort
7.9
Food
7.5
Overall
8.0
Crew
8.5
Entertainment
7.4
Reviews
1 / 20
10.0
ExcellentDebra,Mar 2026
HNL - AKL
Boarding
8.2
Comfort
7.9
Food
7.5
Overall
8.0
Crew
8.5
Entertainment
7.4
Reviews
1 / 20
10.0
ExcellentDebra,Mar 2026
HNL - AKL
Boarding
8.2
Comfort
7.9
Food
7.5
Overall
8.0
Crew
8.5
Entertainment
7.4
Reviews
1 / 20
10.0
ExcellentDebra,Mar 2026
HNL - 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.
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes
Complete your trip
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Popular flights
Top regions
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 July 31, 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 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 July 31, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$261 | Average$1,131 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$712 | Average$1,142 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$716 | Average$1,169 | FlexibilityNo cancel fee | On-time74% | |
| Cheapest$837 | Average$1,518 | FlexibilityNo cancel fee | On-time74% | |
| Cheapest$844 | Average$1,590 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$870 | Average$1,700 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$1,209 | Average$1,288 | FlexibilityNo cancel fee | On-time80% | |
| Cheapest$1,264 | Average$1,570 | FlexibilityNo cancel fee | On-time78% | |
| Cheapest$1,298 | Average$2,071 | FlexibilityNo cancel fee | On-time68% | |
| Cheapest$1,560 | Average$2,003 | FlexibilityNo cancel fee | On-time72% |