$560+ 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 8/22. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — SYD
Jun 19 — Jun 261
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from O'Hare Intl to Australia with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from O'Hare Intl to Australia
Cheapest
Best
Last-minute
One-way
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 20, 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 20, 2026.
This Expedia deal was found by Cheapflights users on 5/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/153:40 pm
ORD
- BNE
1 stop24h 25m
Air Canada
Thu 9/2410:15 am
BNE
- ORD
1 stop24h 51m
Air Canada
Deal found 5/20![Air Canada logo]()
$1,019
This KAYAK deal was found by Cheapflights users on 5/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/86:18 pm
ORD
- MEL
2 stops34h 02m
Multiple Airlines
Thu 8/207:30 am
MEL
- ORD
2 stops28h 32m
Multiple Airlines
Deal found 5/19![Multiple Airlines logo]()
$1,201
This Kiwi.com deal was found by Cheapflights users on 5/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/119:13 pm
ORD
- MEL
1 stop42h 32m
Multiple Airlines
Mon 8/171:30 pm
MEL
- ORD
2 stops31h 47m
Multiple Airlines
Deal found 5/18![Multiple Airlines logo]()
$1,244
This Kiwi.com deal was found by Cheapflights users on 5/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/99:13 pm
ORD
- MEL
1 stop42h 32m
Multiple Airlines
Mon 8/171:30 pm
MEL
- ORD
2 stops31h 47m
Multiple Airlines
Deal found 5/18![Multiple Airlines logo]()
$1,260
This Kiwi.com deal was found by Cheapflights users on 5/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/189:07 pm
ORD
- BNE
1 stop40h 53m
Multiple Airlines
Mon 8/3111:55 am
BNE
- ORD
2 stops33h 24m
Multiple Airlines
Deal found 5/18![Multiple Airlines logo]()
$1,263
This Kiwi.com deal was found by Cheapflights users on 5/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/89:13 pm
ORD
- MEL
1 stop42h 32m
Multiple Airlines
Mon 8/171:30 pm
MEL
- ORD
2 stops31h 47m
Multiple Airlines
Deal found 5/18![Multiple Airlines logo]()
$1,266
This Trip.com deal was found by Cheapflights users on 5/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/79:28 am
ORD
- MEL
3 stops35h 32m
Multiple Airlines
Sun 8/161:30 pm
MEL
- ORD
2 stops31h 47m
Multiple Airlines
Deal found 5/19![Multiple Airlines logo]()
$1,267
This Kiwi.com deal was found by Cheapflights users on 5/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/189:07 pm
ORD
- BNE
1 stop40h 53m
Multiple Airlines
Fri 8/2811:35 am
BNE
- ORD
2 stops33h 44m
Multiple Airlines
Deal found 5/18![Multiple Airlines logo]()
$1,272
This Justfly.com deal was found by Cheapflights users on 5/16. Clicking the “Pick Dates” 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 9/17:50 pm
ORD
- SYD
2 stops32h 20m
ANA
Tue 9/811:45 am
SYD
- ORD
1 stop35h 55m
ANA
Deal found 5/16![ANA logo]()
$1,273
This Kiwi.com deal was found by Cheapflights users on 5/18. Clicking the “Pick Dates” 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 8/109:13 pm
ORD
- MEL
1 stop42h 32m
Multiple Airlines
Mon 8/171:30 pm
MEL
- ORD
2 stops31h 47m
Multiple Airlines
Deal found 5/18![Multiple Airlines logo]()
$1,277
This Justfly.com deal was found by Cheapflights users on 5/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/267:50 pm
ORD
- SYD
2 stops32h 20m
ANA
Tue 9/811:45 am
SYD
- ORD
2 stops32h 00m
ANA
Deal found 5/20![ANA logo]()
$1,277
This FlightHub deal was found by Cheapflights users on 5/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub 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
Wed 11/1112:25 pm
SYD
- ORD
2 stops33h 40m
ANA
Deal found 5/19![ANA logo]()
$1,278
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 20, 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 20, 2026.
This KAYAK deal was found by Cheapflights users on 5/16. Clicking the “Pick Dates” 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 10/57:45 pm
ORD
- AVV
2 stops27h 35m
Multiple Airlines
Tue 10/206:00 am
AVV
- ORD
2 stops26h 45m
Multiple Airlines
Deal found 5/16![Multiple Airlines logo]()
$1,431
This Justfly.com deal was found by Cheapflights users on 5/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/198:49 am
ORD
- ADL
2 stops37h 36m
Air Canada
Tue 11/106:10 am
ADL
- ORD
2 stops26h 58m
Air Canada
Deal found 5/19![Air Canada logo]()
$1,447
This United Airlines deal was found by Cheapflights users on 5/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/214:45 pm
ORD
- SYD
1 stop23h 15m
United Airlines
Sat 10/1011:20 am
SYD
- ORD
1 stop19h 30m
United Airlines
Deal found 5/17![United Airlines logo]()
$1,584
This Delta deal was found by Cheapflights users on 5/16. Clicking the “Pick Dates” 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 7/67:45 am
ORD
- MEL
2 stops33h 05m
Delta
Fri 7/2410:00 am
MEL
- ORD
1 stop22h 16m
Delta
Deal found 5/16![Delta logo]()
$1,616
This Turkish Airlines deal was found by Cheapflights users on 5/18. Clicking the “Pick Dates” 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.
Sun 9/208:10 pm
ORD
- SYD
2 stops32h 00m
Turkish Airlines
Thu 10/19:05 pm
SYD
- ORD
2 stops51h 35m
Turkish Airlines
Deal found 5/18![Turkish Airlines logo]()
$1,686
This American Airlines deal was found by Cheapflights users on 5/17. Clicking the “Pick Dates” 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.
Sun 6/145:10 pm
ORD
- CBR
2 stops28h 55m
American Airlines
Sun 6/216:10 am
CBR
- ORD
2 stops25h 31m
American Airlines
Deal found 5/17![American Airlines logo]()
$1,853
This Qatar Airways deal was found by Cheapflights users on 5/18. Clicking the “Pick Dates” 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
- PER
2 stops39h 35m
Qatar Airways
Wed 9/2310:45 pm
PER
- ORD
1 stop29h 20m
Qatar Airways
Deal found 5/18![Qatar Airways logo]()
$1,871
This oojo deal was found by Cheapflights users on 5/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/303:47 pm
ORD
- PER
2 stops41h 28m
Air New Zealand
Thu 7/307:50 pm
PER
- ORD
2 stops38h 50m
Air New Zealand
Deal found 5/19![Air New Zealand logo]()
$1,893
This oojo deal was found by Cheapflights users on 5/15. Clicking the “Pick Dates” 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 8/2210:11 am
ORD
- PER
3 stops39h 29m
Singapore Airlines
Sun 9/201:45 pm
PER
- ORD
3 stops45h 21m
Singapore Airlines
Deal found 5/15![Singapore Airlines logo]()
$1,900
This Qantas Airways deal was found by Cheapflights users on 5/15. Clicking the “Pick Dates” 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 7/16:59 pm
ORD
- BNE
2 stops25h 56m
Qantas Airways
Mon 3/81:10 pm
BNE
- ORD
1 stop20h 36m
Qantas Airways
Deal found 5/15![Qantas Airways logo]()
$1,923
This KAYAK deal was found by Cheapflights users on 5/16. Clicking the “Pick Dates” 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.
Sun 10/113:40 pm
ORD
- AVV
2 stops30h 30m
Multiple Airlines
Thu 10/296:00 am
AVV
- ORD
2 stops24h 41m
Multiple Airlines
Deal found 5/16![Multiple Airlines logo]()
$1,431
This Air Canada deal was found by Cheapflights users on 5/15. Clicking the “Pick Dates” 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 6/72:15 pm
ORD
- MEL
3 stops29h 50m
Air Canada
Tue 6/168:30 pm
MEL
- ORD
3 stops37h 55m
Air Canada
Deal found 5/15![Air Canada logo]()
$1,469
This United Airlines deal was found by Cheapflights users on 5/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/107:30 am
ORD
- MEL
2 stops33h 00m
United Airlines
Thu 7/2310:55 am
MEL
- ORD
2 stops24h 19m
United Airlines
Deal found 5/20![United Airlines logo]()
$1,592
This Delta deal was found by Cheapflights users on 5/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/227:45 am
ORD
- SYD
2 stops32h 05m
Delta
Sat 9/59:15 am
SYD
- ORD
2 stops27h 43m
Delta
Deal found 5/16![Delta logo]()
$1,616
This Air Canada deal was found by Cheapflights users on 5/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/17:48 pm
ORD
- CBR
2 stops23h 52m
Air Canada
Sun 9/276:40 pm
CBR
- ORD
2 stops35h 03m
Air Canada
Deal found 5/19![Air Canada logo]()
$1,483
This United Airlines deal was found by Cheapflights users on 5/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/66:20 pm
ORD
- MEL
1 stop22h 55m
United Airlines
Mon 8/1710:55 am
MEL
- ORD
1 stop22h 37m
United Airlines
Deal found 5/20![United Airlines logo]()
$1,602
This Air Canada deal was found by Cheapflights users on 5/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/103:40 pm
ORD
- ADL
2 stops31h 45m
Air Canada
Wed 8/196:55 pm
ADL
- ORD
2 stops34h 11m
Air Canada
Deal found 5/19![Air Canada logo]()
$1,490
This Alaska Airlines deal was found by Cheapflights users on 5/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/266:54 pm
ORD
- SYD
2 stops32h 56m
Multiple Airlines
Tue 9/18:45 pm
SYD
- ORD
3 stops24h 35m
Multiple Airlines
Deal found 5/18![Multiple Airlines logo]()
$1,642
This Qatar Airways deal was found by Cheapflights users on 5/18. Clicking the “Pick Dates” 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 8/177:20 pm
ORD
- BNE
2 stops56h 10m
Qatar Airways
Tue 9/110:10 pm
BNE
- ORD
1 stop31h 55m
Qatar Airways
Deal found 5/18![Qatar Airways logo]()
$1,887
This Expedia deal was found by Cheapflights users on 5/16. Clicking the “Pick Dates” 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 6/305:10 pm
ORD
- HBA
2 stops32h 05m
Qantas Airways
Tue 7/76:00 am
HBA
- ORD
2 stops24h 59m
Qantas Airways
Deal found 5/16![Qantas Airways logo]()
$1,935
This United Airlines deal was found by Cheapflights users on 5/16. Clicking the “Pick Dates” 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 7/114:30 pm
ORD
- MEL
1 stop24h 45m
United Airlines
Wed 7/2210:55 am
MEL
- ORD
1 stop22h 40m
United Airlines
Deal found 5/16![United Airlines logo]()
$1,604
This oojo deal was found by Cheapflights users on 5/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/28:02 pm
ORD
- PER
2 stops61h 13m
Air New Zealand
Thu 7/911:50 pm
PER
- ORD
2 stops36h 26m
Air New Zealand
Deal found 5/18![Air New Zealand logo]()
$1,954
This Delta deal was found by Cheapflights users on 5/16. Clicking the “Pick Dates” 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 6/192:07 pm
ORD
- SYD
2 stops25h 43m
Delta
Sun 6/289:15 am
SYD
- ORD
2 stops38h 20m
Delta
Deal found 5/16![Delta logo]()
$1,785
This Alaska Airlines deal was found by Cheapflights users on 5/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/256:54 pm
ORD
- SYD
2 stops32h 56m
Multiple Airlines
Fri 9/48:45 pm
SYD
- ORD
3 stops24h 35m
Multiple Airlines
Deal found 5/19![Multiple Airlines logo]()
$1,651
This Air Canada deal was found by Cheapflights users on 5/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/133:40 pm
ORD
- BNE
1 stop24h 25m
Air Canada
Sun 7/2610:00 am
BNE
- ORD
1 stop19h 36m
Air Canada
Deal found 5/18![Air Canada logo]()
$1,561
This Qatar Airways deal was found by Cheapflights users on 5/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/107:20 pm
ORD
- SYD
1 stop43h 50m
Qatar Airways
Sun 9/132:50 pm
SYD
- ORD
1 stop39h 15m
Qatar Airways
Deal found 5/20![Qatar Airways logo]()
$1,903
This United Airlines deal was found by Cheapflights users on 5/16. Clicking the “Pick Dates” 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 7/76:20 pm
ORD
- MEL
1 stop22h 55m
United Airlines
Tue 7/2110:55 am
MEL
- ORD
1 stop20h 43m
United Airlines
Deal found 5/16![United Airlines logo]()
$1,604
This Qantas Airways deal was found by Cheapflights users on 5/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Qantas Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/25:10 pm
ORD
- MCY
2 stops27h 05m
Qantas Airways
Thu 7/96:55 am
MCY
- ORD
2 stops27h 49m
Qantas Airways
Deal found 5/18![Qantas Airways logo]()
$1,942
This Jetabroad deal was found by Cheapflights users on 5/17. Clicking the “Pick Dates” 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.
Tue 6/164:45 pm
ORD
- CBR
3 stops32h 15m
Air New Zealand
Tue 6/236:10 am
CBR
- ORD
2 stops33h 49m
Air New Zealand
Deal found 5/17![Air New Zealand logo]()
$1,993
This United Airlines deal was found by Cheapflights users on 5/18. Clicking the “Pick Dates” 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 9/114:45 pm
ORD
- MEL
2 stops24h 30m
United Airlines
Fri 9/1810:55 am
MEL
- ORD
1 stop20h 41m
United Airlines
Deal found 5/18![United Airlines logo]()
$1,608
Last-minute flights from O'Hare Intl to AustraliaDiscover last-minute flight deals from O'Hare Intl to Australia. Data last updated May 20, 2026 and is based on user searches.
Discover last-minute flight deals from O'Hare Intl to Australia. Data last updated May 20, 2026 and is based on user searches.
This Vliegwinkel deal was found by Cheapflights users on 5/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Vliegwinkel 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
Tue 6/99:20 am
SYD
- ORD
1 stop20h 25m
Air Canada
Deal found 5/18![Air Canada logo]()
$1,329
This Expedia deal was found by Cheapflights users on 5/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/243:40 pm
ORD
- BNE
1 stop24h 25m
Air Canada
Tue 6/910:15 am
BNE
- ORD
1 stop19h 30m
Air Canada
Deal found 5/20![Air Canada logo]()
$1,394
This Air Canada deal was found by Cheapflights users on 5/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/273:40 pm
ORD
- SYD
1 stop24h 40m
Air Canada
Wed 6/109:20 am
SYD
- ORD
1 stop20h 25m
Air Canada
Deal found 5/19![Air Canada logo]()
$1,398
This flugladen.de deal was found by Cheapflights users on 5/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure flugladen.de is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/313:40 pm
ORD
- SYD
1 stop24h 40m
Air Canada
Thu 6/49:20 am
SYD
- ORD
1 stop20h 25m
Air Canada
Deal found 5/15![Air Canada logo]()
$1,389
This Air Canada deal was found by Cheapflights users on 5/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/13:45 pm
ORD
- BNE
2 stops24h 20m
Air Canada
Tue 6/3010:15 am
BNE
- ORD
2 stops41h 52m
Air Canada
Deal found 5/16![Air Canada logo]()
$1,416
This Air Canada deal was found by Cheapflights users on 5/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/13:40 pm
ORD
- BNE
1 stop24h 25m
Air Canada
Thu 6/410:15 am
BNE
- ORD
1 stop19h 30m
Air Canada
Deal found 5/20![Air Canada logo]()
$1,433
This Air Canada deal was found by Cheapflights users on 5/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/13:40 pm
ORD
- MEL
2 stops28h 25m
Air Canada
Tue 6/96:00 am
MEL
- ORD
2 stops23h 45m
Air Canada
Deal found 5/19![Air Canada logo]()
$1,446
This CheapOair deal was found by Cheapflights users on 5/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair 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 stops41h 52m
Air Canada
Deal found 5/20![Air Canada logo]()
$1,405
This Vliegwinkel deal was found by Cheapflights users on 5/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Vliegwinkel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/53:40 pm
ORD
- SYD
1 stop24h 40m
Air Canada
Tue 6/99:20 am
SYD
- ORD
1 stop20h 25m
Air Canada
Deal found 5/20![Air Canada logo]()
$1,367
This FlightHub deal was found by Cheapflights users on 5/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/73:40 pm
ORD
- MEL
2 stops31h 00m
Multiple Airlines
Tue 6/166:00 am
MEL
- ORD
2 stops23h 45m
Multiple Airlines
Deal found 5/19![Multiple Airlines logo]()
$1,443
This Air Canada deal was found by Cheapflights users on 5/18. Clicking the “Pick Dates” 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 6/93:40 pm
ORD
- BNE
1 stop24h 25m
Air Canada
Thu 7/910:15 am
BNE
- ORD
1 stop19h 21m
Air Canada
Deal found 5/18![Air Canada logo]()
$1,435
This Justfly.com deal was found by Cheapflights users on 5/18. Clicking the “Pick Dates” 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.
Wed 6/178:45 am
ORD
- BNE
2 stops31h 20m
Air Canada
Wed 6/2410:00 am
BNE
- ORD
2 stops38h 34m
Air Canada
Deal found 5/18![Air Canada logo]()
$1,411
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 20, 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 20, 2026.
This Kiwi.com deal was found by Cheapflights users on 5/16. Clicking the “Pick Dates” 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 8/229:07 pm
ORD
- MEL
1 stop42h 38m
Multiple Airlines
Deal found 5/16![Multiple Airlines logo]()
$560
This Kiwi.com deal was found by Cheapflights users on 5/18. Clicking the “Pick Dates” 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 8/229:07 pm
ORD
- SYD
1 stop43h 23m
Multiple Airlines
Deal found 5/18![Multiple Airlines logo]()
$560
This BusinessClass deal was found by Cheapflights users on 5/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure 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 5/19![Multiple Airlines logo]()
$607
This Kiwi.com deal was found by Cheapflights users on 5/16. Clicking the “Pick Dates” 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 8/229:07 pm
ORD
- AVV
2 stops58h 43m
Multiple Airlines
Deal found 5/16![Multiple Airlines logo]()
$621
This Kiwi.com deal was found by Cheapflights users on 5/17. Clicking the “Pick Dates” 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 6/176:55 am
ORD
- SYD
2 stops33h 35m
Multiple Airlines
Deal found 5/17![Multiple Airlines logo]()
$645
This Kiwi.com deal was found by Cheapflights users on 5/17. Clicking the “Pick Dates” 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 6/176:55 am
ORD
- BNE
2 stops31h 05m
Multiple Airlines
Deal found 5/17![Multiple Airlines logo]()
$645
This Kiwi.com deal was found by Cheapflights users on 5/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/298:46 pm
ORD
- SYD
1 stop43h 44m
Multiple Airlines
Deal found 5/18![Multiple Airlines logo]()
$660
This Kiwi.com deal was found by Cheapflights users on 5/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/299:13 pm
ORD
- SYD
1 stop43h 17m
Multiple Airlines
Deal found 5/17![Multiple Airlines logo]()
$671
This Kiwi.com deal was found by Cheapflights users on 5/17. Clicking the “Pick Dates” 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 6/209:48 pm
ORD
- BNE
2 stops40h 12m
Multiple Airlines
Deal found 5/17![Multiple Airlines logo]()
$672
This Kiwi.com deal was found by Cheapflights users on 5/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/195:29 pm
ORD
- SYD
2 stops47h 01m
Multiple Airlines
Deal found 5/17![Multiple Airlines logo]()
$673
This Kiwi.com deal was found by Cheapflights users on 5/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/195:29 pm
ORD
- BNE
2 stops44h 31m
Multiple Airlines
Deal found 5/17![Multiple Airlines logo]()
$673
This Kiwi.com deal was found by Cheapflights users on 5/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/161:02 pm
ORD
- SYD
2 stops26h 28m
Multiple Airlines
Deal found 5/18![Multiple Airlines logo]()
$677
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 20, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $1,201 (KAYAK) |
One-way from | $560 (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 20, 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
ChicagoMelbourne
ORD - AVV
ORDAVV
Chicago O'Hare Intl
Mon 10/5
7:45 pm-3:20 pm
2 stops27h 35m
Melbourne Avalon
Tue 10/20
6:00 am-4:45 pm
2 stops26h 45m
$1,431
ChicagoMelbourne
ORD - AVV
ORDAVV
Chicago O'Hare Intl
Sun 10/11
3:40 pm-2:10 pm
2 stops30h 30m
Melbourne Avalon
Thu 10/29
6:00 am-2:41 pm
2 stops24h 41m
$1,431
ChicagoAdelaide
ORD - ADL
ORDADL
Chicago O'Hare Intl
Mon 10/19
8:49 am-1:55 pm
2 stops37h 36m
Adelaide
Tue 11/10
6:10 am-4:38 pm
2 stops26h 58m
$1,447
ChicagoMelbourne
ORD - MEL
ORDMEL
Chicago O'Hare Intl
Sun 6/7
2:15 pm-11:05 am
3 stops29h 50m
Melbourne
Tue 6/16
8:30 pm-7:25 pm
3 stops37h 55m
$1,469
ChicagoCanberra
ORD - CBR
ORDCBR
Chicago O'Hare Intl
Tue 9/1
7:48 pm-10:40 am
2 stops23h 52m
Canberra
Sun 9/27
6:40 pm-2:43 pm
2 stops35h 03m
$1,483
ChicagoAdelaide
ORD - ADL
ORDADL
Chicago O'Hare Intl
Mon 8/10
3:40 pm-1:55 pm
2 stops31h 45m
Adelaide
Wed 8/19
6:55 pm-2:36 pm
2 stops34h 11m
$1,490
ChicagoBrisbane
ORD - BNE
ORDBNE
Chicago O'Hare Intl
Mon 7/13
3:40 pm-7:05 am
1 stop24h 25m
Brisbane
Sun 7/26
10:00 am-2:36 pm
1 stop19h 36m
$1,561
Quickest round-trip
ChicagoSydney
ORD - SYD
ORDSYD
Chicago O'Hare Intl
Fri 8/21
4:45 pm-7:00 am
1 stop23h 15m
Sydney Kingsford Smith
Sat 10/10
11:20 am-2:50 pm
1 stop19h 30m
$1,584
ChicagoMelbourne
ORD - MEL
ORDMEL
Chicago O'Hare Intl
Fri 7/10
7:30 am-7:30 am
2 stops33h 00m
Melbourne
Thu 7/23
10:55 am-8:14 pm
2 stops24h 19m
$1,592
ChicagoMelbourne
ORD - MEL
ORDMEL
Chicago O'Hare Intl
Thu 8/6
6:20 pm-8:15 am
1 stop22h 55m
Melbourne
Mon 8/17
10:55 am-6:32 pm
1 stop22h 37m
$1,602
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-AVV
ORD-ADL
ORD-SYD
ORD-MEL
ORD-CBR
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-AVV
ORD-ADL
ORD-SYD
ORD-MEL
What is the cheapest month to book a flight from Chicago O'Hare Intl Airport to Australia?
Currently, November is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Australia (average of $113). Flying from Chicago O'Hare Intl Airport to Australia in July is currently the most expensive (average of $768). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
How far ahead should I book a flight from Chicago O'Hare Intl Airport to Australia?
The price you pay for your flight from Chicago O'Hare Intl Airport to Australia may vary depending on when you book. For the best chance of a lower fare, look to book 46 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
Reviews of airlines servicing Australia
Get insights into the airlines that provide service to Australia. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Australia. Reviews last updated May 20, 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.
Boarding
8.2
Crew
8.5
Overall
8.0
Entertainment
7.4
Comfort
7.9
Food
7.4
Reviews
1 / 20
6.0
GoodAnonymous,Mar 2026
SIN - AKL
Boarding
8.2
Crew
8.5
Overall
8.0
Entertainment
7.4
Comfort
7.9
Food
7.4
Reviews
1 / 20
6.0
GoodAnonymous,Mar 2026
SIN - AKL
Boarding
8.2
Crew
8.5
Overall
8.0
Entertainment
7.4
Comfort
7.9
Food
7.4
Reviews
1 / 20
6.0
GoodAnonymous,Mar 2026
SIN - AKL
Boarding
8.2
Crew
8.5
Overall
8.0
Entertainment
7.4
Comfort
7.9
Food
7.4
Reviews
1 / 20
6.0
GoodAnonymous,Mar 2026
SIN - AKL
Boarding
8.2
Crew
8.5
Overall
8.0
Entertainment
7.4
Comfort
7.9
Food
7.4
Reviews
1 / 20
6.0
GoodAnonymous,Mar 2026
SIN - AKL
Boarding
8.2
Crew
8.5
Overall
8.0
Entertainment
7.4
Comfort
7.9
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.
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
Flights by cabin class
Other flight options
Popular flights
Top regions
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 20, 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 20, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$198 | Average$1,512 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$712 | Average$1,127 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$716 | Average$1,212 | FlexibilityNo cancel fee | On-time74% | |
| Cheapest$836 | Average$1,511 | FlexibilityNo cancel fee | On-time74% | |
| Cheapest$870 | Average$1,690 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$1,193 | Average$1,288 | FlexibilityNo cancel fee | On-time80% | |
| Cheapest$1,217 | Average$1,517 | 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% |