$549+ Cheap flights from O'Hare Intl (ORD) to Australia
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/8. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — SYD
Jun 8 — Jun 151
Round-trip
1 adult, Economy
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Cheapest flights from O'Hare Intl to AustraliaExplore the most affordable flight options available from O'Hare Intl to Australia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 9, 2026.
Explore the most affordable flight options available from O'Hare Intl to Australia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 9, 2026.
This KAYAK deal was found by Cheapflights users on 5/8. Clicking the “Pick Dates” 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 6/236:20 pm
ORD
- MEL
2 stops34h 00m
Multiple Airlines
Sat 8/17:30 am
MEL
- ORD
2 stops28h 52m
Multiple Airlines
Deal found 5/8![Multiple Airlines logo]()
$1,197
This Jetabroad deal was found by Cheapflights users on 5/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Jetabroad is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/276:29 pm
ORD
- MEL
2 stops33h 51m
Multiple Airlines
Sat 8/17:30 am
MEL
- ORD
2 stops28h 52m
Multiple Airlines
Deal found 5/7![Multiple Airlines logo]()
$1,230
This Cheapflightsfares deal was found by Cheapflights users on 5/7. Clicking the “Pick Dates” 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.
Wed 8/265:45 pm
ORD
- SYD
1 stop34h 25m
ANA
Tue 9/88:55 pm
SYD
- ORD
1 stop26h 45m
ANA
Deal found 5/7![ANA logo]()
$1,231
This Cheapflightsfares deal was found by Cheapflights users on 5/6. Clicking the “Pick Dates” 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.
Tue 9/15:45 pm
ORD
- SYD
1 stop34h 25m
ANA
Tue 9/88:55 pm
SYD
- ORD
1 stop26h 45m
ANA
Deal found 5/6![ANA logo]()
$1,232
This Cheapflightsfares deal was found by Cheapflights users on 5/6. Clicking the “Pick Dates” 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.
Wed 8/55:45 pm
ORD
- SYD
1 stop34h 25m
ANA
Sun 8/3011:45 am
SYD
- ORD
2 stops32h 00m
ANA
Deal found 5/6![ANA logo]()
$1,241
This Gotogate deal was found by Cheapflights users on 5/5. Clicking the “Pick Dates” 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.
Tue 11/34:25 pm
ORD
- SYD
1 stop34h 50m
ANA
Wed 11/1812:25 pm
SYD
- ORD
1 stop35h 55m
ANA
Deal found 5/5![ANA logo]()
$1,253
This KAYAK deal was found by Cheapflights users on 5/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/265:35 pm
ORD
- SYD
1 stop34h 40m
ANA
Tue 11/109:45 pm
SYD
- ORD
1 stop26h 35m
ANA
Deal found 5/4![ANA logo]()
$1,260
This KAYAK deal was found by Cheapflights users on 5/5. Clicking the “Pick Dates” 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.
Wed 11/44:25 pm
ORD
- SYD
1 stop34h 50m
ANA
Thu 11/1212:25 pm
SYD
- ORD
1 stop35h 55m
ANA
Deal found 5/5![ANA logo]()
$1,261
This CrystalTravel deal was found by Cheapflights users on 5/6. Clicking the “Pick Dates” 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.
Thu 8/205:45 pm
ORD
- SYD
1 stop34h 25m
ANA
Thu 8/2711:45 am
SYD
- ORD
2 stops32h 00m
ANA
Deal found 5/6![ANA logo]()
$1,265
This KAYAK deal was found by Cheapflights users on 5/7. Clicking the “Pick Dates” 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 7/281:25 pm
ORD
- MEL
2 stops38h 55m
Multiple Airlines
Thu 8/67:30 am
MEL
- ORD
2 stops28h 32m
Multiple Airlines
Deal found 5/7![Multiple Airlines logo]()
$1,266
This Jetabroad deal was found by Cheapflights users on 5/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Jetabroad is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/256:29 pm
ORD
- MEL
2 stops33h 51m
Multiple Airlines
Sat 8/87:30 am
MEL
- ORD
2 stops28h 32m
Multiple Airlines
Deal found 5/6![Multiple Airlines logo]()
$1,327
This Kiwi.com deal was found by Cheapflights users on 5/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/19:13 pm
ORD
- MEL
1 stop42h 32m
Multiple Airlines
Wed 8/51:25 pm
MEL
- ORD
2 stops31h 52m
Multiple Airlines
Deal found 5/4![Multiple Airlines logo]()
$1,364
Best flights from O'Hare Intl to AustraliaDiscover carefully curated flight deals from O'Hare Intl to Australia that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated May 9, 2026.
Discover carefully curated flight deals from O'Hare Intl to Australia that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated May 9, 2026.
This KAYAK deal was found by Cheapflights users on 5/8. Clicking the “Pick Dates” 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 8/215:45 pm
ORD
- SYD
1 stop34h 25m
ANA
Fri 8/2811:45 am
SYD
- ORD
2 stops32h 00m
ANA
Deal found 5/8![ANA logo]()
$1,271
This Air Canada deal was found by Cheapflights users on 5/8. Clicking the “Pick Dates” 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 6/173:40 pm
ORD
- BNE
1 stop24h 25m
Air Canada
Wed 6/2410:00 am
BNE
- ORD
1 stop19h 41m
Air Canada
Deal found 5/8![Air Canada logo]()
$1,530
This Justfly.com deal was found by Cheapflights users on 5/7. Clicking the “Pick Dates” 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.
Thu 5/283:40 pm
ORD
- CBR
2 stops28h 55m
Multiple Airlines
Thu 6/46:20 am
CBR
- ORD
2 stops23h 25m
Multiple Airlines
Deal found 5/7![Multiple Airlines logo]()
$1,548
This United Airlines deal was found by Cheapflights users on 5/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/306:20 pm
ORD
- MEL
1 stop22h 55m
United Airlines
Tue 7/2810:55 am
MEL
- ORD
1 stop20h 43m
United Airlines
Deal found 5/7![United Airlines logo]()
$1,603
This Delta deal was found by Cheapflights users on 5/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/233:50 pm
ORD
- SYD
2 stops24h 00m
Delta
Wed 11/410:40 am
SYD
- ORD
2 stops24h 52m
Delta
Deal found 5/5![Delta logo]()
$1,615
This oojo deal was found by Cheapflights users on 5/6. Clicking the “Pick Dates” 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 8/27:08 pm
ORD
- ADL
2 stops25h 27m
Qantas Airways
Sun 8/96:00 am
ADL
- ORD
2 stops24h 24m
Qantas Airways
Deal found 5/6![Qantas Airways logo]()
$1,815
This American Airlines deal was found by Cheapflights users on 5/4. Clicking the “Pick Dates” 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 6/15:10 pm
ORD
- CNS
2 stops26h 25m
American Airlines
Mon 6/83:45 pm
CNS
- ORD
2 stops28h 15m
American Airlines
Deal found 5/4![American Airlines logo]()
$1,852
This oojo deal was found by Cheapflights users on 5/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/194:45 pm
ORD
- OOL
2 stops27h 00m
Air New Zealand
Fri 6/2611:45 am
OOL
- ORD
2 stops26h 31m
Air New Zealand
Deal found 5/5![Air New Zealand logo]()
$1,878
This Qatar Airways deal was found by Cheapflights users on 5/4. Clicking the “Pick Dates” 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.
Mon 8/317:20 pm
ORD
- OOL
2 stops34h 30m
Qatar Airways
Fri 9/45:25 pm
OOL
- ORD
2 stops36h 40m
Qatar Airways
Deal found 5/4![Qatar Airways logo]()
$2,028
This KAYAK deal was found by Cheapflights users on 5/8. Clicking the “Pick Dates” 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 6/304:00 pm
ORD
- PER
1 stop41h 40m
Cathay Pacific
Wed 7/2912:10 am
PER
- ORD
1 stop27h 10m
Cathay Pacific
Deal found 5/8![Cathay Pacific logo]()
$2,393
This United Airlines deal was found by Cheapflights users on 5/5. Clicking the “Pick Dates” 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 7/410:40 am
ORD
- MEL
1 stop30h 35m
United Airlines
Sun 11/1511:30 am
MEL
- ORD
1 stop20h 07m
United Airlines
Deal found 5/5![United Airlines logo]()
$1,603
This Alaska Airlines deal was found by Cheapflights users on 5/8. Clicking the “Pick Dates” 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 6/27:49 pm
ORD
- SYD
2 stops32h 01m
Multiple Airlines
Tue 6/98:45 pm
SYD
- ORD
3 stops24h 15m
Multiple Airlines
Deal found 5/8![Multiple Airlines logo]()
$1,605
This Delta deal was found by Cheapflights users on 5/7. Clicking the “Pick Dates” 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.
Mon 7/62:45 pm
ORD
- SYD
1 stop25h 05m
Delta
Mon 7/279:15 am
SYD
- ORD
2 stops26h 16m
Delta
Deal found 5/7![Delta logo]()
$1,615
This Air Canada deal was found by Cheapflights users on 5/8. Clicking the “Pick Dates” 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 5/258:40 am
ORD
- SYD
2 stops31h 40m
Air Canada
Tue 6/169:20 am
SYD
- ORD
2 stops37h 30m
Air Canada
Deal found 5/8![Air Canada logo]()
$1,713
This United Airlines deal was found by Cheapflights users on 5/7. Clicking the “Pick Dates” 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 7/32:30 pm
ORD
- MEL
1 stop26h 00m
United Airlines
Sun 11/1511:30 am
MEL
- ORD
1 stop22h 10m
United Airlines
Deal found 5/7![United Airlines logo]()
$1,603
This Ovago deal was found by Cheapflights users on 5/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/26:15 pm
ORD
- AVV
2 stops26h 50m
Multiple Airlines
Fri 11/208:10 am
AVV
- ORD
2 stops27h 38m
Multiple Airlines
Deal found 5/6![Multiple Airlines logo]()
$1,625
This KAYAK deal was found by Cheapflights users on 5/8. Clicking the “Pick Dates” 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 6/303:47 pm
ORD
- PER
2 stops41h 28m
Air New Zealand
Thu 7/3011:50 pm
PER
- ORD
2 stops34h 50m
Air New Zealand
Deal found 5/8![Air New Zealand logo]()
$1,908
This United Airlines deal was found by Cheapflights users on 5/5. Clicking the “Pick Dates” 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 9/284:40 pm
ORD
- MEL
1 stop23h 50m
United Airlines
Wed 10/711:55 am
MEL
- ORD
1 stop25h 32m
United Airlines
Deal found 5/5![United Airlines logo]()
$1,603
This Delta deal was found by Cheapflights users on 5/6. Clicking the “Pick Dates” 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 6/1311:23 am
ORD
- SYD
2 stops28h 27m
Delta
Sun 6/219:15 am
SYD
- ORD
2 stops27h 42m
Delta
Deal found 5/6![Delta logo]()
$1,765
This Alaska Airlines deal was found by Cheapflights users on 5/5. Clicking the “Pick Dates” 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 9/16:54 pm
ORD
- SYD
2 stops32h 56m
Multiple Airlines
Tue 9/88:45 pm
SYD
- ORD
3 stops24h 37m
Multiple Airlines
Deal found 5/5![Multiple Airlines logo]()
$1,636
This oojo deal was found by Cheapflights users on 5/6. Clicking the “Pick Dates” 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.
Sat 6/203:50 pm
ORD
- CBR
2 stops26h 25m
Qantas Airways
Sat 6/271:35 pm
CBR
- ORD
2 stops25h 23m
Qantas Airways
Deal found 5/6![Qantas Airways logo]()
$2,057
This Qatar Airways deal was found by Cheapflights users on 5/3. Clicking the “Pick Dates” 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.
Thu 9/107:20 pm
ORD
- CNS
2 stops47h 30m
Qatar Airways
Mon 9/149:00 pm
CNS
- ORD
2 stops57h 05m
Qatar Airways
Deal found 5/3![Qatar Airways logo]()
$2,085
This United Airlines deal was found by Cheapflights users on 5/5. Clicking the “Pick Dates” 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 7/34:45 pm
ORD
- MEL
1 stop23h 45m
United Airlines
Mon 11/161:00 pm
MEL
- ORD
1 stop26h 55m
United Airlines
Deal found 5/5![United Airlines logo]()
$1,603
This Delta deal was found by Cheapflights users on 5/6. Clicking the “Pick Dates” 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.
Mon 6/811:23 am
ORD
- SYD
2 stops28h 27m
Delta
Tue 6/169:15 am
SYD
- ORD
1 stop19h 35m
Delta
Deal found 5/6![Delta logo]()
$1,765
This American Airlines deal was found by Cheapflights users on 5/4. Clicking the “Pick Dates” 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 5/253:20 pm
ORD
- CNS
2 stops28h 15m
American Airlines
Sun 6/283:45 pm
CNS
- ORD
2 stops30h 30m
American Airlines
Deal found 5/4![American Airlines logo]()
$2,152
This Alaska Airlines deal was found by Cheapflights users on 5/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/216:54 pm
ORD
- SYD
2 stops32h 56m
Multiple Airlines
Fri 8/288:45 pm
SYD
- ORD
3 stops24h 37m
Multiple Airlines
Deal found 5/8![Multiple Airlines logo]()
$1,670
This oojo deal was found by Cheapflights users on 5/5. Clicking the “Pick Dates” 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 8/36:19 pm
ORD
- AVV
2 stops28h 51m
Qantas Airways
Tue 8/186:00 am
AVV
- ORD
2 stops27h 35m
Qantas Airways
Deal found 5/5![Qantas Airways logo]()
$2,109
This Qatar Airways deal was found by Cheapflights users on 5/7. Clicking the “Pick Dates” 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 9/197:20 pm
ORD
- CNS
2 stops37h 00m
Qatar Airways
Wed 9/239:00 pm
CNS
- ORD
2 stops57h 05m
Qatar Airways
Deal found 5/7![Qatar Airways logo]()
$2,128
This Delta deal was found by Cheapflights users on 5/4. Clicking the “Pick Dates” 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.
Mon 6/12:59 pm
ORD
- SYD
2 stops24h 51m
Delta
Mon 6/159:15 am
SYD
- ORD
2 stops24h 27m
Delta
Deal found 5/4![Delta logo]()
$1,765
This United Airlines deal was found by Cheapflights users on 5/6. Clicking the “Pick Dates” 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 8/34:12 pm
ORD
- MEL
2 stops25h 03m
United Airlines
Tue 8/1810:55 am
MEL
- ORD
1 stop22h 37m
United Airlines
Deal found 5/6![United Airlines logo]()
$1,607
Last-minute flights from O'Hare Intl to AustraliaDiscover last-minute flight deals from O'Hare Intl to Australia. Data last updated May 9, 2026 and is based on user searches.
Discover last-minute flight deals from O'Hare Intl to Australia. Data last updated May 9, 2026 and is based on user searches.
This Air Canada deal was found by Cheapflights users on 5/6. Clicking the “Pick Dates” 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 5/108:45 am
ORD
- SYD
2 stops31h 35m
Air Canada
Tue 7/79:20 am
SYD
- ORD
1 stop20h 21m
Air Canada
Deal found 5/6![Air Canada logo]()
$1,402
This Gotogate deal was found by Cheapflights users on 5/8. Clicking the “Pick Dates” 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 5/113:40 pm
ORD
- SYD
1 stop24h 40m
Air Canada
Sun 5/249:20 am
SYD
- ORD
1 stop20h 25m
Air Canada
Deal found 5/8![Air Canada logo]()
$1,401
This Air Canada deal was found by Cheapflights users on 5/7. Clicking the “Pick Dates” 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 5/123:40 pm
ORD
- SYD
1 stop24h 40m
Air Canada
Tue 5/199:20 am
SYD
- ORD
1 stop20h 25m
Air Canada
Deal found 5/7![Air Canada logo]()
$1,399
This Justfly.com deal was found by Cheapflights users on 5/7. Clicking the “Pick Dates” 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.
Sat 5/163:40 pm
ORD
- BNE
2 stops48h 25m
Air Canada
Mon 6/110:00 am
BNE
- ORD
2 stops38h 34m
Air Canada
Deal found 5/7![Air Canada logo]()
$1,410
This Air Canada deal was found by Cheapflights users on 5/7. Clicking the “Pick Dates” 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 5/198:41 am
ORD
- BNE
2 stops31h 24m
Air Canada
Mon 3/110:45 am
BNE
- ORD
2 stops46h 05m
Air Canada
Deal found 5/7![Air Canada logo]()
$1,409
This Justfly.com deal was found by Cheapflights users on 5/7. Clicking the “Pick Dates” 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 5/243:40 pm
ORD
- SYD
1 stop24h 40m
Air Canada
Wed 7/229:20 am
SYD
- ORD
1 stop20h 21m
Air Canada
Deal found 5/7![Air Canada logo]()
$1,409
This FlightHub deal was found by Cheapflights users on 5/7. Clicking the “Pick Dates” 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.
Sat 5/308:35 pm
ORD
- SYD
2 stops43h 45m
Air Canada
Mon 6/89:20 am
SYD
- ORD
2 stops39h 58m
Air Canada
Deal found 5/7![Air Canada logo]()
$1,420
This FlightHub deal was found by Cheapflights users on 5/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/28:40 am
ORD
- BNE
2 stops31h 25m
Air Canada
Tue 6/1610:15 am
BNE
- ORD
2 stops38h 19m
Air Canada
Deal found 5/7![Air Canada logo]()
$1,406
This FlightHub deal was found by Cheapflights users on 5/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/23:40 pm
ORD
- SYD
1 stop24h 40m
Air Canada
Mon 6/89:20 am
SYD
- ORD
2 stops39h 58m
Air Canada
Deal found 5/8![Air Canada logo]()
$1,413
This FlightHub deal was found by Cheapflights users on 5/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/23:40 pm
ORD
- SYD
1 stop24h 40m
Air Canada
Sun 6/79:20 am
SYD
- ORD
2 stops38h 40m
Air Canada
Deal found 5/6![Air Canada logo]()
$1,417
This KAYAK deal was found by Cheapflights users on 5/8. Clicking the “Pick Dates” 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 6/236:20 pm
ORD
- MEL
2 stops34h 00m
Multiple Airlines
Sat 8/17:30 am
MEL
- ORD
2 stops28h 52m
Multiple Airlines
Deal found 5/8![Multiple Airlines logo]()
$1,197
This Jetabroad deal was found by Cheapflights users on 5/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Jetabroad is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/276:29 pm
ORD
- MEL
2 stops33h 51m
Multiple Airlines
Sat 8/17:30 am
MEL
- ORD
2 stops28h 52m
Multiple Airlines
Deal found 5/7![Multiple Airlines logo]()
$1,230
One-way flights from O'Hare Intl to AustraliaSearch for one-way flight options from O'Hare Intl to Australia. Find affordable one-way fares based on user searches. Data last updated May 9, 2026.
Search for one-way flight options from O'Hare Intl to Australia. Find affordable one-way fares based on user searches. Data last updated May 9, 2026.
This Kiwi.com deal was found by Cheapflights users on 5/4. Clicking the “Pick Dates” 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 8/89:28 am
ORD
- SYD
2 stops35h 22m
Multiple Airlines
Deal found 5/4![Multiple Airlines logo]()
$549
This Kiwi.com deal was found by Cheapflights users on 5/4. Clicking the “Pick Dates” 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 8/49:57 pm
ORD
- SYD
3 stops46h 53m
Multiple Airlines
Deal found 5/4![Multiple Airlines logo]()
$554
This Kiwi.com deal was found by Cheapflights users on 5/4. Clicking the “Pick Dates” 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 8/261:50 pm
ORD
- SYD
3 stops55h 00m
Multiple Airlines
Deal found 5/4![Multiple Airlines logo]()
$561
This Kiwi.com deal was found by Cheapflights users on 5/4. Clicking the “Pick Dates” 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 6/31:29 pm
ORD
- SYD
3 stops55h 21m
Multiple Airlines
Deal found 5/4![Multiple Airlines logo]()
$567
This Kiwi.com deal was found by Cheapflights users on 5/5. Clicking the “Pick Dates” 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 6/49:37 pm
ORD
- SYD
3 stops47h 13m
Multiple Airlines
Deal found 5/5![Multiple Airlines logo]()
$576
This KAYAK deal was found by Cheapflights users on 5/7. Clicking the “Pick Dates” 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 8/46:28 pm
ORD
- MEL
2 stops33h 52m
Multiple Airlines
Deal found 5/7![Multiple Airlines logo]()
$579
This Kiwi.com deal was found by Cheapflights users on 5/5. Clicking the “Pick Dates” 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 6/139:10 am
ORD
- SYD
2 stops35h 40m
Multiple Airlines
Deal found 5/5![Multiple Airlines logo]()
$588
This Kiwi.com deal was found by Cheapflights users on 5/4. Clicking the “Pick Dates” 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 8/69:28 am
ORD
- SYD
2 stops35h 22m
Multiple Airlines
Deal found 5/4![Multiple Airlines logo]()
$594
This Kiwi.com deal was found by Cheapflights users on 5/4. Clicking the “Pick Dates” 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 8/37:15 am
ORD
- SYD
3 stops37h 35m
Multiple Airlines
Deal found 5/4![Multiple Airlines logo]()
$598
This BusinessClass deal was found by Cheapflights users on 5/6. Clicking the “Pick Dates” 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 5/6![Multiple Airlines logo]()
$607
This Ovago deal was found by Cheapflights users on 5/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/1410:41 am
ORD
- MEL
2 stops41h 39m
Multiple Airlines
Deal found 5/7![Multiple Airlines logo]()
$614
This Gurufare deal was found by Cheapflights users on 5/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/15:50 pm
ORD
- MEL
2 stops34h 30m
Multiple Airlines
Deal found 5/6![Multiple Airlines logo]()
$615
Find flight deals from O'Hare Intl to Australia
Keep the following information in mind while searching for O'Hare Intl to Australia flight deals. Data was last updated May 9, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $1,230 (Jetabroad) |
One-way from | $549 (Kiwi.com) |
Popular in | July |
Cheapest in | February |
Average price | $1,459 |
Cheapflights Fare Finder
Customize your flight search to find flights from O'Hare Intl to Australia that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated May 9, 2026.
Use the filters below to find and compare flights from Chicago O'Hare Intl Airport to Australia that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
ChicagoSydney
ORD - SYD
ORDSYD
Chicago O'Hare Intl
Fri 8/21
5:45 pm-7:10 pm
1 stop34h 25m
Sydney Kingsford Smith
Fri 8/28
11:45 am-4:45 am
2 stops32h 00m
$1,271
ChicagoBrisbane
ORD - BNE
ORDBNE
Chicago O'Hare Intl
Wed 6/17
3:40 pm-7:05 am
1 stop24h 25m
Brisbane
Wed 6/24
10:00 am-2:41 pm
1 stop19h 41m
$1,530
ChicagoCanberra
ORD - CBR
ORDCBR
Chicago O'Hare Intl
Thu 5/28
3:40 pm-11:35 am
2 stops28h 55m
Canberra
Thu 6/4
6:20 am-2:45 pm
2 stops23h 25m
$1,548
Quickest round-trip
ChicagoMelbourne
ORD - MEL
ORDMEL
Chicago O'Hare Intl
Tue 6/30
6:20 pm-8:15 am
1 stop22h 55m
Melbourne
Tue 7/28
10:55 am-4:38 pm
1 stop20h 43m
$1,603
ChicagoMelbourne
ORD - MEL
ORDMEL
Chicago O'Hare Intl
Sat 7/4
10:40 am-8:15 am
1 stop30h 35m
Melbourne
Sun 11/15
11:30 am-2:37 pm
1 stop20h 07m
$1,603
ChicagoMelbourne
ORD - MEL
ORDMEL
Chicago O'Hare Intl
Fri 7/3
2:30 pm-7:30 am
1 stop26h 00m
Melbourne
Sun 11/15
11:30 am-4:40 pm
1 stop22h 10m
$1,603
ChicagoMelbourne
ORD - MEL
ORDMEL
Chicago O'Hare Intl
Mon 9/28
4:40 pm-7:30 am
1 stop23h 50m
Melbourne
Wed 10/7
11:55 am-9:27 pm
1 stop25h 32m
$1,603
ChicagoMelbourne
ORD - MEL
ORDMEL
Chicago O'Hare Intl
Fri 7/3
4:45 pm-7:30 am
1 stop23h 45m
Melbourne
Mon 11/16
1:00 pm-10:55 pm
1 stop26h 55m
$1,603
ChicagoSydney
ORD - SYD
ORDSYD
Chicago O'Hare Intl
Tue 6/2
7:49 pm-6:50 pm
2 stops32h 01m
Sydney Kingsford Smith
Tue 6/9
8:45 pm-6:00 am
3 stops24h 15m
$1,605
ChicagoMelbourne
ORD - MEL
ORDMEL
Chicago O'Hare Intl
Mon 8/3
4:12 pm-8:15 am
2 stops25h 03m
Melbourne
Tue 8/18
10:55 am-6:32 pm
1 stop22h 37m
$1,607
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from O'Hare Intl to Australia
Have a flexible travel schedule? Discover the best time to fly to Australia from O'Hare Intl with our price prediction graph.
ORD-MEL
ORD-SYD
ORD-BNE
ORD-CBR
ORD-ADL
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Chicago O'Hare Intl Airport to Australia
ORD-AU0
ORD-MEL
ORD-SYD
ORD-BNE
ORD-CBR
How far ahead should I book a flight from Chicago O'Hare Intl Airport to Australia?
The price you pay for your flight from Chicago O'Hare Intl Airport to Australia may vary depending on when you book. For the best chance of a lower fare, look to book 55 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
What is the cheapest month to book a flight from Chicago O'Hare Intl Airport to Australia?
Currently, November is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Australia (average of $113). Flying from Chicago O'Hare Intl Airport to Australia in February is currently the most expensive (average of $839). 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 May 9, 2026.
Peruse reviews from past customers who have flown with Air New Zealand,Qantas Airways, andUnited Airlines from Chicago O'Hare Intl Airport to Australia to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
7.4
Comfort
7.9
Overall
8.0
Boarding
8.2
Crew
8.5
Food
7.4
Reviews
1 / 20
6.0
GoodAnonymous,Mar 2026
SIN - AKL
Entertainment
7.4
Comfort
7.9
Overall
8.0
Boarding
8.2
Crew
8.5
Food
7.4
Reviews
1 / 20
6.0
GoodAnonymous,Mar 2026
SIN - AKL
Entertainment
7.4
Comfort
7.9
Overall
8.0
Boarding
8.2
Crew
8.5
Food
7.4
Reviews
1 / 20
6.0
GoodAnonymous,Mar 2026
SIN - AKL
Entertainment
7.4
Comfort
7.9
Overall
8.0
Boarding
8.2
Crew
8.5
Food
7.4
Reviews
1 / 20
6.0
GoodAnonymous,Mar 2026
SIN - AKL
Entertainment
7.4
Comfort
7.9
Overall
8.0
Boarding
8.2
Crew
8.5
Food
7.4
Reviews
1 / 20
6.0
GoodAnonymous,Mar 2026
SIN - AKL
Entertainment
7.4
Comfort
7.9
Overall
8.0
Boarding
8.2
Crew
8.5
Food
7.4
Reviews
1 / 20
6.0
GoodAnonymous,Mar 2026
SIN - AKL
Related info for your journey
Find useful and relevant information for your journey from O'Hare Intl to Australia. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for O'Hare Intl to Australia
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Australia by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from O'Hare Intl to Australia by cabin class
Find flights from O'Hare Intl to Australia, based on your preferred cabin class, be it economy, premium economy, business, or first class.
O'Hare Intl and Australia flights
Browse other O'Hare Intl and Australia flight options. Last updated on May 9, 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 9 airlines flying from O'Hare Intl to Australia
Discover the top 9 airlines that operate flights from O'Hare Intl to Australia. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated May 9, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$198 | Average$1,487 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$712 | Average$1,113 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$716 | Average$1,212 | FlexibilityNo cancel fee | On-time74% | |
| Cheapest$837 | Average$1,571 | FlexibilityNo cancel fee | On-time74% | |
| Cheapest$870 | Average$1,686 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$1,184 | Average$1,288 | FlexibilityNo cancel fee | On-time80% | |
| Cheapest$1,217 | Average$1,504 | FlexibilityNo cancel fee | On-time78% | |
| Cheapest$1,263 | Average$1,762 | FlexibilityNo cancel fee | On-time68% | |
| Cheapest$1,418 | Average$1,888 | FlexibilityNo cancel fee | On-time72% |