$516+ 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 5/30. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — SYD
mai 28 — juin 41
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 avril 28, 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 avril 28, 2026.
This Trip.com deal was found by Cheapflights users on 4/26. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 9/1411:49 am
ORD
- SYD
3 stops33h 01m
Multiple Airlines
dim. 9/201:15 pm
SYD
- ORD
3 stops36h 33m
Multiple Airlines
Deal found 4/26![Multiple Airlines logo]()
$1,178
This Trip.com deal was found by Cheapflights users on 4/26. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer. 5/276:55 am
ORD
- MEL
3 stops38h 10m
Multiple Airlines
dim. 6/71:30 pm
MEL
- ORD
3 stops46h 02m
Multiple Airlines
Deal found 4/26![Multiple Airlines logo]()
$1,189
This Trip.com deal was found by Cheapflights users on 4/26. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dim. 5/32:00 pm
ORD
- SYD
2 stops41h 10m
Multiple Airlines
sam. 5/96:00 am
SYD
- ORD
3 stops45h 04m
Multiple Airlines
Deal found 4/26![Multiple Airlines logo]()
$1,228
This Cheapflightsfares deal was found by Cheapflights users on 4/28. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer. 8/265:45 pm
ORD
- SYD
1 stop24h 40m
ANA
mar. 9/88:55 pm
SYD
- ORD
1 stop26h 45m
ANA
Deal found 4/28![ANA logo]()
$1,231
This Cheapflightsfares deal was found by Cheapflights users on 4/27. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer. 8/55:45 pm
ORD
- SYD
1 stop34h 25m
ANA
dim. 8/3011:45 am
SYD
- ORD
2 stops32h 00m
ANA
Deal found 4/27![ANA logo]()
$1,240
This CrystalTravel deal was found by Cheapflights users on 4/25. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ven. 8/147:50 pm
ORD
- SYD
2 stops32h 20m
ANA
ven. 8/2811:45 am
SYD
- ORD
2 stops32h 00m
ANA
Deal found 4/25![ANA logo]()
$1,247
This CrystalTravel deal was found by Cheapflights users on 4/24. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sam. 8/155:45 pm
ORD
- SYD
1 stop34h 25m
ANA
sam. 8/2911:45 am
SYD
- ORD
2 stops32h 00m
ANA
Deal found 4/24![ANA logo]()
$1,248
This CrystalTravel deal was found by Cheapflights users on 4/26. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ven. 8/217:50 pm
ORD
- SYD
2 stops32h 20m
ANA
ven. 8/2811:45 am
SYD
- ORD
2 stops32h 00m
ANA
Deal found 4/26![ANA logo]()
$1,251
This CrystalTravel deal was found by Cheapflights users on 4/27. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 10/195:45 pm
ORD
- SYD
1 stop34h 25m
ANA
dim. 11/229:45 pm
SYD
- ORD
1 stop26h 35m
ANA
Deal found 4/27![ANA logo]()
$1,254
This Gotogate deal was found by Cheapflights users on 4/27. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 8/255:45 pm
ORD
- SYD
1 stop24h 40m
ANA
lun. 9/711:45 am
SYD
- ORD
1 stop35h 55m
ANA
Deal found 4/27![ANA logo]()
$1,257
This Trip.com deal was found by Cheapflights users on 4/26. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dim. 5/32:00 pm
ORD
- MEL
2 stops31h 25m
Multiple Airlines
sam. 5/91:30 pm
MEL
- ORD
3 stops37h 34m
Multiple Airlines
Deal found 4/26![Multiple Airlines logo]()
$1,299
This KAYAK deal was found by Cheapflights users on 4/24. 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.
jeu. 9/35:50 pm
ORD
- MEL
2 stops34h 30m
Multiple Airlines
sam. 9/127:30 am
MEL
- ORD
2 stops28h 44m
Multiple Airlines
Deal found 4/24![Multiple Airlines logo]()
$1,322
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 avril 28, 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 avril 28, 2026.
This Bravofly deal was found by Cheapflights users on 4/24. 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 Bravofly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 6/83:20 pm
ORD
- ADL
2 stops27h 35m
Qantas Airways
lun. 6/157:50 am
ADL
- ORD
2 stops26h 08m
Qantas Airways
Deal found 4/24![Qantas Airways logo]()
$1,378
This Alaska Airlines deal was found by Cheapflights users on 4/23. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 9/18:42 pm
ORD
- SYD
2 stops31h 08m
Multiple Airlines
mar. 9/88:45 pm
SYD
- ORD
2 stops24h 37m
Multiple Airlines
Deal found 4/23![Multiple Airlines logo]()
$1,410
This Air Canada deal was found by Cheapflights users on 4/23. 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.
mar. 6/911:05 am
ORD
- BNE
2 stops29h 00m
Air Canada
jeu. 7/910:15 am
BNE
- ORD
1 stop19h 26m
Air Canada
Deal found 4/23![Air Canada logo]()
$1,542
This Delta deal was found by Cheapflights users on 4/23. 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.
dim. 5/36:38 pm
MDW
- MEL
2 stops46h 12m
Delta
dim. 5/2410:00 am
MEL
- MDW
2 stops23h 33m
Delta
Deal found 4/23![Delta logo]()
$1,587
This United Airlines deal was found by Cheapflights users on 4/24. 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.
jeu. 6/1812:56 pm
ORD
- MEL
2 stops28h 19m
United Airlines
sam. 7/410:55 am
MEL
- ORD
2 stops25h 44m
United Airlines
Deal found 4/24![United Airlines logo]()
$1,590
This KAYAK deal was found by Cheapflights users on 4/22. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 6/304:00 pm
ORD
- PER
1 stop25h 50m
Cathay Pacific
mer. 7/2912:10 am
PER
- ORD
1 stop27h 10m
Cathay Pacific
Deal found 4/22![Cathay Pacific logo]()
$2,403
This Qatar Airways deal was found by Cheapflights users on 4/27. 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 6/297:20 pm
ORD
- CNS
2 stops58h 00m
Qatar Airways
ven. 7/312:55 am
CNS
- ORD
2 stops53h 10m
Qatar Airways
Deal found 4/27![Qatar Airways logo]()
$2,533
This oojo deal was found by Cheapflights users on 4/24. 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.
jeu. 5/147:21 pm
ORD
- ADL
2 stops27h 49m
Qantas Airways
sam. 5/236:00 am
ADL
- ORD
2 stops28h 03m
Qantas Airways
Deal found 4/24![Qantas Airways logo]()
$1,401
This KLM deal was found by Cheapflights users on 4/25. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 6/95:10 pm
ORD
- BNE
2 stops45h 50m
KLM
jeu. 7/97:25 am
BNE
- ORD
3 stops45h 50m
KLM
Deal found 4/25![KLM logo]()
$2,965
This oojo deal was found by Cheapflights users on 4/27. 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.
jeu. 7/25:10 pm
ORD
- ADL
2 stops28h 15m
Qantas Airways
dim. 8/26:00 am
ADL
- ORD
2 stops26h 42m
Qantas Airways
Deal found 4/27![Qantas Airways logo]()
$1,407
This Kiwi.com deal was found by Cheapflights users on 4/22. 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.
ven. 7/249:13 pm
ORD
- MEL
2 stops47h 47m
Multiple Airlines
ven. 8/79:45 am
MEL
- ORD
1 stop35h 17m
Multiple Airlines
Deal found 4/22![Multiple Airlines logo]()
$1,548
This Delta deal was found by Cheapflights users on 4/23. 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.
dim. 6/77:59 pm
ORD
- MEL
2 stops44h 51m
Delta
dim. 6/1410:00 am
MEL
- ORD
2 stops23h 59m
Delta
Deal found 4/23![Delta logo]()
$1,587
This United Airlines deal was found by Cheapflights users on 4/23. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ven. 7/32:21 pm
ORD
- MEL
1 stop26h 09m
United Airlines
sam. 7/1110:55 am
MEL
- ORD
1 stop22h 40m
United Airlines
Deal found 4/23![United Airlines logo]()
$1,602
This Delta deal was found by Cheapflights users on 4/23. 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.
lun. 6/111:26 am
ORD
- SYD
2 stops28h 24m
Delta
lun. 6/159:15 am
SYD
- ORD
2 stops24h 44m
Delta
Deal found 4/23![Delta logo]()
$1,595
This United Airlines deal was found by Cheapflights users on 4/23. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 7/73:47 pm
ORD
- BNE
2 stops27h 43m
United Airlines
mer. 7/2210:30 am
BNE
- ORD
2 stops24h 55m
United Airlines
Deal found 4/23![United Airlines logo]()
$1,606
This Alaska Airlines deal was found by Cheapflights users on 4/24. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer. 5/207:49 pm
ORD
- SYD
2 stops32h 01m
Multiple Airlines
ven. 6/58:45 pm
SYD
- ORD
2 stops37h 05m
Multiple Airlines
Deal found 4/24![Multiple Airlines logo]()
$1,614
This oojo deal was found by Cheapflights users on 4/24. 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.
dim. 6/286:59 pm
ORD
- ADL
2 stops26h 26m
Qantas Airways
ven. 7/37:45 pm
ADL
- ORD
2 stops34h 38m
Qantas Airways
Deal found 4/24![Qantas Airways logo]()
$1,500
This Delta deal was found by Cheapflights users on 4/23. 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.
mar. 9/12:00 pm
MDW
- SYD
2 stops25h 50m
Delta
mar. 9/89:15 am
SYD
- MDW
2 stops24h 16m
Delta
Deal found 4/23![Delta logo]()
$1,595
This United Airlines deal was found by Cheapflights users on 4/26. 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.
dim. 7/51:00 pm
ORD
- SYD
1 stop27h 00m
United Airlines
mer. 7/2910:20 am
SYD
- ORD
1 stop19h 30m
United Airlines
Deal found 4/26![United Airlines logo]()
$1,609
This Alaska Airlines deal was found by Cheapflights users on 4/27. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 8/258:42 pm
ORD
- SYD
2 stops31h 08m
Multiple Airlines
mar. 9/18:45 pm
SYD
- ORD
3 stops24h 37m
Multiple Airlines
Deal found 4/27![Multiple Airlines logo]()
$1,636
This oojo deal was found by Cheapflights users on 4/22. 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.
ven. 7/248:49 pm
ORD
- MEL
1 stop42h 56m
Qantas Airways
ven. 8/79:45 am
MEL
- ORD
1 stop21h 59m
Qantas Airways
Deal found 4/22![Qantas Airways logo]()
$1,595
This Delta deal was found by Cheapflights users on 4/23. 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.
lun. 6/11:22 pm
MDW
- SYD
2 stops26h 28m
Delta
lun. 6/159:15 am
SYD
- MDW
2 stops24h 03m
Delta
Deal found 4/23![Delta logo]()
$1,595
This United Airlines deal was found by Cheapflights users on 4/24. 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.
lun. 6/2912:56 pm
ORD
- SYD
2 stops27h 04m
United Airlines
dim. 7/199:30 am
SYD
- ORD
1 stop20h 05m
United Airlines
Deal found 4/24![United Airlines logo]()
$1,614
This Qantas Airways deal was found by Cheapflights users on 4/24. 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 Qantas Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 6/85:10 pm
ORD
- BNE
1 stop20h 50m
Multiple Airlines
lun. 6/158:35 pm
BNE
- ORD
1 stop23h 25m
Multiple Airlines
Deal found 4/24![Multiple Airlines logo]()
$1,646
This Air Canada deal was found by Cheapflights users on 4/25. 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.
mar. 5/2610:43 am
ORD
- PER
3 stops40h 02m
Air Canada
mer. 6/35:15 pm
PER
- ORD
2 stops34h 30m
Air Canada
Deal found 4/25![Air Canada logo]()
$2,278
This Delta deal was found by Cheapflights users on 4/27. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ven. 6/261:21 pm
MDW
- MEL
2 stops27h 29m
Delta
dim. 7/510:00 am
MEL
- MDW
2 stops27h 17m
Delta
Deal found 4/27![Delta logo]()
$1,614
This United Airlines deal was found by Cheapflights users on 4/25. 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.
sam. 7/42:33 pm
ORD
- SYD
2 stops25h 22m
United Airlines
dim. 7/269:30 am
SYD
- ORD
1 stop22h 34m
United Airlines
Deal found 4/25![United Airlines logo]()
$1,614
This KAYAK deal was found by Cheapflights users on 4/25. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 5/264:15 pm
ORD
- PER
1 stop41h 25m
Cathay Pacific
mar. 6/212:10 am
PER
- ORD
1 stop26h 45m
Cathay Pacific
Deal found 4/25![Cathay Pacific logo]()
$2,407
This Qantas Airways deal was found by Cheapflights users on 4/23. 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 Qantas Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dim. 6/76:59 pm
ORD
- CNS
2 stops26h 56m
Multiple Airlines
dim. 6/143:45 pm
CNS
- ORD
2 stops28h 15m
Multiple Airlines
Deal found 4/23![Multiple Airlines logo]()
$1,657
This lastminute.com deal was found by Cheapflights users on 4/23. 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 lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dim. 6/78:05 am
ORD
- PER
2 stops39h 00m
Qantas Airways
dim. 6/1411:45 pm
PER
- ORD
2 stops34h 53m
Qantas Airways
Deal found 4/23![Qantas Airways logo]()
$1,764
Last-minute flights from Chicago to AustraliaDiscover last-minute flight deals from Chicago to Australia. Data last updated avril 28, 2026 and is based on user searches.
Discover last-minute flight deals from Chicago to Australia. Data last updated avril 28, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 4/24. 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.
ven. 5/19:44 pm
ORD
- SYD
2 stops57h 26m
Multiple Airlines
sam. 5/235:50 pm
SYD
- ORD
1 stop27h 44m
Multiple Airlines
Deal found 4/24![Multiple Airlines logo]()
$1,326
This Kiwi.com deal was found by Cheapflights users on 4/24. 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.
sam. 5/210:23 am
ORD
- SYD
2 stops44h 47m
Multiple Airlines
sam. 5/235:50 pm
SYD
- ORD
1 stop27h 44m
Multiple Airlines
Deal found 4/24![Multiple Airlines logo]()
$1,340
This Trip.com deal was found by Cheapflights users on 4/26. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dim. 5/32:00 pm
ORD
- SYD
2 stops41h 10m
Multiple Airlines
sam. 5/96:00 am
SYD
- ORD
3 stops45h 04m
Multiple Airlines
Deal found 4/26![Multiple Airlines logo]()
$1,228
This Trip.com deal was found by Cheapflights users on 4/26. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dim. 5/32:00 pm
ORD
- MEL
2 stops31h 25m
Multiple Airlines
sam. 5/91:30 pm
MEL
- ORD
3 stops37h 34m
Multiple Airlines
Deal found 4/26![Multiple Airlines logo]()
$1,299
This Kiwi.com deal was found by Cheapflights users on 4/24. 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.
lun. 5/47:15 am
ORD
- SYD
2 stops37h 35m
Multiple Airlines
sam. 5/235:50 pm
SYD
- ORD
1 stop27h 44m
Multiple Airlines
Deal found 4/24![Multiple Airlines logo]()
$1,342
This Kiwi.com deal was found by Cheapflights users on 4/26. 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.
jeu. 5/149:30 am
ORD
- SYD
2 stops35h 20m
Multiple Airlines
sam. 5/305:50 pm
SYD
- ORD
1 stop27h 09m
Multiple Airlines
Deal found 4/26![Multiple Airlines logo]()
$1,311
This Kiwi.com deal was found by Cheapflights users on 4/26. 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.
jeu. 5/146:15 am
ORD
- SYD
2 stops38h 35m
Multiple Airlines
dim. 5/315:50 pm
SYD
- ORD
1 stop27h 09m
Multiple Airlines
Deal found 4/26![Multiple Airlines logo]()
$1,313
This Kiwi.com deal was found by Cheapflights users on 4/26. 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.
jeu. 5/149:30 am
ORD
- SYD
2 stops35h 20m
Multiple Airlines
jeu. 5/285:50 pm
SYD
- ORD
1 stop27h 44m
Multiple Airlines
Deal found 4/26![Multiple Airlines logo]()
$1,333
This Kiwi.com deal was found by Cheapflights users on 4/24. 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.
ven. 5/158:56 pm
ORD
- SYD
2 stops47h 54m
Multiple Airlines
sam. 5/235:50 pm
SYD
- ORD
1 stop27h 44m
Multiple Airlines
Deal found 4/24![Multiple Airlines logo]()
$1,280
This Kiwi.com deal was found by Cheapflights users on 4/25. 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.
ven. 5/158:56 pm
ORD
- SYD
2 stops47h 54m
Multiple Airlines
mer. 6/35:50 pm
SYD
- ORD
1 stop27h 09m
Multiple Airlines
Deal found 4/25![Multiple Airlines logo]()
$1,349
This Kiwi.com deal was found by Cheapflights users on 4/26. 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.
dim. 5/247:15 am
ORD
- SYD
2 stops37h 35m
Multiple Airlines
dim. 5/315:50 pm
SYD
- ORD
1 stop27h 09m
Multiple Airlines
Deal found 4/26![Multiple Airlines logo]()
$1,339
This Trip.com deal was found by Cheapflights users on 4/26. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mer. 5/276:55 am
ORD
- MEL
3 stops38h 10m
Multiple Airlines
dim. 6/71:30 pm
MEL
- ORD
3 stops46h 02m
Multiple Airlines
Deal found 4/26![Multiple Airlines logo]()
$1,189
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 avril 28, 2026.
Search for one-way flight options from Chicago to Australia. Find affordable one-way fares based on user searches. Data last updated avril 28, 2026.
This Kiwi.com deal was found by Cheapflights users on 4/23. 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.
sam. 5/3011:57 am
ORD
- CNS
2 stops32h 43m
Multiple Airlines
Deal found 4/23![Multiple Airlines logo]()
$516
This Kiwi.com deal was found by Cheapflights users on 4/23. 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.
sam. 5/3011:57 am
ORD
- SYD
2 stops32h 53m
Multiple Airlines
Deal found 4/23![Multiple Airlines logo]()
$517
This Kiwi.com deal was found by Cheapflights users on 4/26. 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.
sam. 9/54:10 pm
ORD
- CNS
2 stops28h 30m
Multiple Airlines
Deal found 4/26![Multiple Airlines logo]()
$523
This Kiwi.com deal was found by Cheapflights users on 4/23. 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.
lun. 8/248:34 pm
ORD
- SYD
2 stops48h 16m
Multiple Airlines
Deal found 4/23![Multiple Airlines logo]()
$528
This Trip.com deal was found by Cheapflights users on 4/23. 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.
lun. 5/47:15 am
ORD
- SYD
2 stops37h 35m
Multiple Airlines
Deal found 4/23![Multiple Airlines logo]()
$545
This Kiwi.com deal was found by Cheapflights users on 4/23. 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.
jeu. 5/149:30 am
ORD
- MEL
3 stops55h 10m
Multiple Airlines
Deal found 4/23![Multiple Airlines logo]()
$559
This Kiwi.com deal was found by Cheapflights users on 4/23. 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.
sam. 5/239:37 pm
ORD
- SYD
3 stops47h 13m
Multiple Airlines
Deal found 4/23![Multiple Airlines logo]()
$566
This Kiwi.com deal was found by Cheapflights users on 4/23. 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.
mer. 5/69:37 pm
ORD
- SYD
3 stops47h 13m
Multiple Airlines
Deal found 4/23![Multiple Airlines logo]()
$567
This Kiwi.com deal was found by Cheapflights users on 4/25. 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.
mar. 9/151:42 pm
ORD
- CNS
3 stops30h 58m
Multiple Airlines
Deal found 4/25![Multiple Airlines logo]()
$575
This Kiwi.com deal was found by Cheapflights users on 4/26. 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.
dim. 5/310:50 am
ORD
- SYD
3 stops58h 00m
Multiple Airlines
Deal found 4/26![Multiple Airlines logo]()
$577
This Kiwi.com deal was found by Cheapflights users on 4/23. 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.
sam. 5/306:00 am
MDW
- SYD
3 stops38h 50m
Multiple Airlines
Deal found 4/23![Multiple Airlines logo]()
$586
This Kiwi.com deal was found by Cheapflights users on 4/24. 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.
mar. 5/199:37 pm
ORD
- MEL
3 stops47h 28m
Multiple Airlines
Deal found 4/24![Multiple Airlines logo]()
$594
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 avril 28, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $1,178 (Trip.com) |
One-way from | $516 (Kiwi.com) |
Popular in | July |
Cheapest in | February |
Average price | $1,441 |
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 avril 28, 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
ChicagoAdelaide
ORD - ADL
ORDADL
Chicago O'Hare Intl
lun. 6/8
3:20 pm-9:25 am
2 stops27h 35m
Adelaide
lun. 6/15
7:50 am-7:28 pm
2 stops26h 08m
$1,378
ChicagoAdelaide
ORD - ADL
ORDADL
Chicago O'Hare Intl
jeu. 5/14
7:21 pm-1:40 pm
2 stops27h 49m
Adelaide
sam. 5/23
6:00 am-7:33 pm
2 stops28h 03m
$1,401
ChicagoAdelaide
ORD - ADL
ORDADL
Chicago O'Hare Intl
jeu. 7/2
5:10 pm-11:55 am
2 stops28h 15m
Adelaide
dim. 8/2
6:00 am-6:12 pm
2 stops26h 42m
$1,407
ChicagoSydney
ORD - SYD
ORDSYD
Chicago O'Hare Intl
mar. 9/1
8:42 pm-6:50 pm
2 stops31h 08m
Sydney Kingsford Smith
mar. 9/8
8:45 pm-6:22 am
2 stops24h 37m
$1,410
ChicagoAdelaide
ORD - ADL
ORDADL
Chicago O'Hare Intl
dim. 6/28
6:59 pm-11:55 am
2 stops26h 26m
Adelaide
ven. 7/3
7:45 pm-3:53 pm
2 stops34h 38m
$1,500
ChicagoBrisbane
ORD - BNE
ORDBNE
Chicago O'Hare Intl
mar. 6/9
11:05 am-7:05 am
2 stops29h 00m
Brisbane
jeu. 7/9
10:15 am-2:41 pm
1 stop19h 26m
$1,542
ChicagoMelbourne
ORD - MEL
ORDMEL
Chicago O'Hare Intl
ven. 7/24
9:13 pm-12:00 pm
2 stops47h 47m
Melbourne
ven. 8/7
9:45 am-6:02 am
1 stop35h 17m
$1,548
ChicagoMelbourne
MDW - MEL
MDWMEL
Chicago Midway
dim. 5/3
6:38 pm-7:50 am
2 stops46h 12m
Melbourne
dim. 5/24
10:00 am-6:33 pm
2 stops23h 33m
$1,587
ChicagoMelbourne
ORD - MEL
ORDMEL
Chicago O'Hare Intl
dim. 6/7
7:59 pm-7:50 am
2 stops44h 51m
Melbourne
dim. 6/14
10:00 am-6:59 pm
2 stops23h 59m
$1,587
ChicagoMelbourne
ORD - MEL
ORDMEL
Chicago O'Hare Intl
jeu. 6/18
12:56 pm-8:15 am
2 stops28h 19m
Melbourne
sam. 7/4
10:55 am-9:39 pm
2 stops25h 44m
$1,590
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-ADL
ORD-SYD
ORD-BNE
MDW-MEL
ORD-MEL
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-ADL
ORD-SYD
ORD-BNE
MDW-MEL
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 32 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.
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.
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 avril 28, 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.
Overall
8.0
Entertainment
7.4
Crew
8.5
Comfort
7.9
Food
7.4
Boarding
8.2
Reviews
1 / 20
6.0
GoodAnonymous,Mar 2026
SIN - AKL
Overall
8.0
Entertainment
7.4
Crew
8.5
Comfort
7.9
Food
7.4
Boarding
8.2
Reviews
1 / 20
6.0
GoodAnonymous,Mar 2026
SIN - AKL
Overall
8.0
Entertainment
7.4
Crew
8.5
Comfort
7.9
Food
7.4
Boarding
8.2
Reviews
1 / 20
6.0
GoodAnonymous,Mar 2026
SIN - AKL
Overall
8.0
Entertainment
7.4
Crew
8.5
Comfort
7.9
Food
7.4
Boarding
8.2
Reviews
1 / 20
6.0
GoodAnonymous,Mar 2026
SIN - AKL
Overall
8.0
Entertainment
7.4
Crew
8.5
Comfort
7.9
Food
7.4
Boarding
8.2
Reviews
1 / 20
6.0
GoodAnonymous,Mar 2026
SIN - AKL
Overall
8.0
Entertainment
7.4
Crew
8.5
Comfort
7.9
Food
7.4
Boarding
8.2
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
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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 avril 28, 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 avril 28, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$198 | Average$1,487 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$317 | Average$1,418 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$712 | Average$1,105 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$716 | Average$1,212 | FlexibilityNo cancel fee | On-time74% | |
| Cheapest$837 | Average$1,582 | FlexibilityNo cancel fee | On-time74% | |
| Cheapest$870 | Average$1,663 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$1,186 | Average$1,288 | FlexibilityNo cancel fee | On-time80% | |
| Cheapest$1,217 | Average$1,489 | FlexibilityNo cancel fee | On-time78% | |
| Cheapest$1,263 | Average$1,762 | FlexibilityNo cancel fee | On-time68% | |
| Cheapest$1,418 | Average$1,890 | FlexibilityNo cancel fee | On-time72% |