$551+ 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 8/24. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — SYD
Jun 29 — Jul 61
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 30, 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 30, 2026.
This Jetabroad deal was found by Cheapflights users on 5/26. 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 Jetabroad is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/115:50 pm
ORD
- MEL
2 stops34h 30m
Multiple Airlines
Sat 8/157:30 am
MEL
- ORD
2 stops28h 32m
Multiple Airlines
Deal found 5/26![Multiple Airlines logo]()
$1,193
This Trip.com deal was found by Cheapflights users on 5/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/297:20 am
ORD
- MEL
3 stops38h 05m
Multiple Airlines
Mon 7/61:30 pm
MEL
- ORD
2 stops31h 47m
Multiple Airlines
Deal found 5/30![Multiple Airlines logo]()
$1,238
This Trip.com deal was found by Cheapflights users on 5/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/319:28 am
ORD
- BNE
3 stops34h 07m
Multiple Airlines
Wed 8/1911:35 am
BNE
- ORD
2 stops33h 44m
Multiple Airlines
Deal found 5/29![Multiple Airlines logo]()
$1,241
This Trip.com deal was found by Cheapflights users on 5/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/47:20 am
ORD
- MEL
3 stops37h 40m
Multiple Airlines
Mon 7/201:30 pm
MEL
- ORD
2 stops31h 47m
Multiple Airlines
Deal found 5/29![Multiple Airlines logo]()
$1,254
This Travelocity deal was found by Cheapflights users on 5/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/103:40 pm
ORD
- BNE
1 stop24h 25m
Air Canada
Tue 8/1810:15 am
BNE
- ORD
1 stop19h 21m
Air Canada
Deal found 5/29![Air Canada logo]()
$1,281
This Trip.com deal was found by Cheapflights users on 5/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/47:20 am
ORD
- BNE
3 stops36h 20m
Multiple Airlines
Thu 7/911:55 am
BNE
- ORD
2 stops33h 22m
Multiple Airlines
Deal found 5/30![Multiple Airlines logo]()
$1,284
This Trip.com deal was found by Cheapflights users on 5/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/246:55 am
ORD
- BNE
3 stops36h 40m
Multiple Airlines
Mon 7/611:55 am
BNE
- ORD
2 stops33h 22m
Multiple Airlines
Deal found 5/29![Multiple Airlines logo]()
$1,289
This Justfly.com deal was found by Cheapflights users on 5/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com 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 5/30![Air Canada logo]()
$1,291
This FlightHub deal was found by Cheapflights users on 5/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/268:50 am
ORD
- SYD
2 stops33h 35m
ANA
Tue 9/111:45 am
SYD
- ORD
1 stop35h 55m
ANA
Deal found 5/26![ANA logo]()
$1,292
This FlightHub deal was found by Cheapflights users on 5/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/245:45 pm
ORD
- SYD
1 stop24h 40m
ANA
Fri 9/411:45 am
SYD
- ORD
1 stop35h 55m
ANA
Deal found 5/26![ANA logo]()
$1,293
This FlightHub deal was found by Cheapflights users on 5/27. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/308:00 pm
ORD
- SYD
2 stops44h 20m
Air Canada
Tue 6/99:20 am
SYD
- ORD
1 stop20h 25m
Air Canada
Deal found 5/27![Air Canada logo]()
$1,295
This Justfly.com deal was found by Cheapflights users on 5/27. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2011:05 am
ORD
- BNE
2 stops29h 00m
Air Canada
Wed 10/289:45 am
BNE
- ORD
2 stops22h 05m
Air Canada
Deal found 5/27![Air Canada logo]()
$1,295
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 30, 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 30, 2026.
This Air Canada deal was found by Cheapflights users on 5/28. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/72:01 pm
ORD
- BNE
2 stops26h 04m
Multiple Airlines
Sat 9/128:40 pm
BNE
- ORD
3 stops40h 25m
Multiple Airlines
Deal found 5/28![Multiple Airlines logo]()
$1,322
This Justfly.com deal was found by Cheapflights users on 5/25. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/185:45 pm
ORD
- SYD
1 stop34h 25m
ANA
Sat 10/2412:45 pm
SYD
- ORD
2 stops32h 00m
ANA
Deal found 5/25![ANA logo]()
$1,372
This Justfly.com deal was found by Cheapflights users on 5/28. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/199:50 am
ORD
- ADL
3 stops36h 35m
Air Canada
Tue 11/106:10 am
ADL
- ORD
2 stops26h 58m
Air Canada
Deal found 5/28![Air Canada logo]()
$1,389
This United Airlines deal was found by Cheapflights users on 5/28. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/244:45 pm
ORD
- MEL
2 stops24h 30m
United Airlines
Mon 7/2710:55 am
MEL
- ORD
1 stop22h 40m
United Airlines
Deal found 5/28![United Airlines logo]()
$1,403
This Delta deal was found by Cheapflights users on 5/28. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/92:45 pm
ORD
- SYD
1 stop25h 05m
Delta
Mon 6/229:15 am
SYD
- ORD
1 stop19h 35m
Delta
Deal found 5/28![Delta logo]()
$1,410
This Alaska Airlines deal was found by Cheapflights users on 5/27. 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.
Wed 8/56:00 am
ORD
- SYD
2 stops34h 30m
Alaska Airlines
Wed 8/125:50 pm
SYD
- ORD
2 stops26h 10m
Alaska Airlines
Deal found 5/27![Alaska Airlines logo]()
$1,417
This Qantas Airways deal was found by Cheapflights users on 5/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Qantas Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/255:10 pm
ORD
- BNE
1 stop20h 50m
Qantas Airways
Sun 7/58:45 am
BNE
- ORD
2 stops24h 31m
Qantas Airways
Deal found 5/26![Qantas Airways logo]()
$1,475
This Expedia deal was found by Cheapflights users on 5/25. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/33:47 pm
ORD
- BNE
2 stops25h 23m
Air New Zealand
Fri 7/1012:20 pm
BNE
- ORD
2 stops25h 56m
Air New Zealand
Deal found 5/25![Air New Zealand logo]()
$1,630
This Qatar Airways deal was found by Cheapflights users on 5/26. 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/257:20 pm
ORD
- PER
2 stops36h 50m
Qatar Airways
Sun 8/3010:45 pm
PER
- ORD
1 stop29h 20m
Qatar Airways
Deal found 5/26![Qatar Airways logo]()
$1,939
This FlightHub deal was found by Cheapflights users on 5/28. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/193:40 pm
ORD
- ADL
2 stops30h 45m
Multiple Airlines
Tue 11/106:10 am
ADL
- ORD
2 stops25h 01m
Multiple Airlines
Deal found 5/28![Multiple Airlines logo]()
$1,375
This United Airlines deal was found by Cheapflights users on 5/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/68:50 am
ORD
- SYD
1 stop31h 05m
United Airlines
Mon 7/2710:20 am
SYD
- ORD
1 stop19h 30m
United Airlines
Deal found 5/30![United Airlines logo]()
$1,409
This Delta deal was found by Cheapflights users on 5/27. 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.
Sun 11/222:55 pm
ORD
- MEL
1 stop25h 55m
Delta
Mon 11/3012:00 pm
MEL
- ORD
1 stop22h 21m
Delta
Deal found 5/27![Delta logo]()
$1,411
This Qantas Airways deal was found by Cheapflights users on 5/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Qantas Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/165:10 pm
ORD
- SYD
1 stop22h 55m
Qantas Airways
Sat 6/2712:00 pm
SYD
- ORD
1 stop20h 59m
Qantas Airways
Deal found 5/27![Qantas Airways logo]()
$1,507
This Delta deal was found by Cheapflights users on 5/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/1611:30 am
ORD
- MEL
2 stops29h 20m
Delta
Wed 11/2512:00 pm
MEL
- ORD
1 stop22h 21m
Delta
Deal found 5/30![Delta logo]()
$1,414
This United Airlines deal was found by Cheapflights users on 5/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/124:45 pm
ORD
- SYD
2 stops23h 10m
United Airlines
Wed 8/1910:20 am
SYD
- ORD
2 stops21h 45m
United Airlines
Deal found 5/29![United Airlines logo]()
$1,414
This Air Canada deal was found by Cheapflights users on 5/28. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/143:40 pm
ORD
- CNS
2 stops30h 20m
Air Canada
Wed 11/186:00 am
CNS
- ORD
2 stops26h 38m
Air Canada
Deal found 5/28![Air Canada logo]()
$1,638
This FlightHub deal was found by Cheapflights users on 5/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/163:40 pm
ORD
- CBR
2 stops28h 55m
Multiple Airlines
Thu 8/206:20 am
CBR
- ORD
2 stops23h 16m
Multiple Airlines
Deal found 5/29![Multiple Airlines logo]()
$1,510
This Qantas Airways deal was found by Cheapflights users on 5/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Qantas Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/216:59 pm
ORD
- SYD
1 stop21h 06m
Qantas Airways
Sun 6/2812:00 pm
SYD
- ORD
1 stop21h 05m
Qantas Airways
Deal found 5/27![Qantas Airways logo]()
$1,532
This Delta deal was found by Cheapflights users on 5/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1711:30 am
ORD
- MEL
2 stops29h 20m
Delta
Tue 11/2412:00 pm
MEL
- ORD
1 stop22h 21m
Delta
Deal found 5/30![Delta logo]()
$1,414
This United Airlines deal was found by Cheapflights users on 5/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/49:35 pm
ORD
- MEL
2 stops46h 00m
United Airlines
Mon 7/2010:55 am
MEL
- ORD
1 stop22h 40m
United Airlines
Deal found 5/29![United Airlines logo]()
$1,442
This Air Canada deal was found by Cheapflights users on 5/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/311:10 pm
ORD
- PER
2 stops42h 00m
Air Canada
Wed 11/410:55 pm
PER
- ORD
3 stops34h 40m
Air Canada
Deal found 5/29![Air Canada logo]()
$1,648
This Qantas Airways deal was found by Cheapflights users on 5/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Qantas Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/169:09 am
ORD
- SYD
1 stop30h 56m
Qantas Airways
Sun 6/2812:00 pm
SYD
- ORD
1 stop22h 30m
Qantas Airways
Deal found 5/27![Qantas Airways logo]()
$1,532
This Delta deal was found by Cheapflights users on 5/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/156:30 pm
ORD
- MEL
1 stop22h 20m
Delta
Tue 11/2412:00 pm
MEL
- ORD
2 stops25h 24m
Delta
Deal found 5/30![Delta logo]()
$1,414
This Alaska Airlines deal was found by Cheapflights users on 5/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 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 5/28![Multiple Airlines logo]()
$1,560
This United Airlines deal was found by Cheapflights users on 5/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/279:35 pm
ORD
- MEL
2 stops66h 55m
United Airlines
Sat 7/46:00 pm
MEL
- ORD
2 stops35h 50m
United Airlines
Deal found 5/30![United Airlines logo]()
$1,445
This Qatar Airways deal was found by Cheapflights users on 5/26. 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/257:20 pm
ORD
- PER
2 stops36h 50m
Qatar Airways
Mon 8/3110:45 pm
PER
- ORD
1 stop29h 20m
Qatar Airways
Deal found 5/26![Qatar Airways logo]()
$1,939
This Delta deal was found by Cheapflights users on 5/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/11:40 pm
ORD
- SYD
2 stops26h 10m
Delta
Wed 7/89:15 am
SYD
- ORD
2 stops22h 44m
Delta
Deal found 5/30![Delta logo]()
$1,414
This Qantas Airways deal was found by Cheapflights users on 5/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Qantas Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/157:07 pm
ORD
- BNE
2 stops25h 48m
Qantas Airways
Sun 8/305:35 pm
BNE
- ORD
2 stops26h 38m
Qantas Airways
Deal found 5/29![Qantas Airways logo]()
$1,576
This Alaska Airlines deal was found by Cheapflights users on 5/26. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/13:43 pm
ORD
- SYD
2 stops36h 07m
Multiple Airlines
Tue 9/88:45 pm
SYD
- ORD
3 stops24h 35m
Multiple Airlines
Deal found 5/26![Multiple Airlines logo]()
$1,580
This United Airlines deal was found by Cheapflights users on 5/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/156:20 pm
ORD
- MEL
1 stop22h 40m
United Airlines
Thu 11/261:00 pm
MEL
- ORD
1 stop21h 04m
United Airlines
Deal found 5/30![United Airlines logo]()
$1,452
Last-minute flights from O'Hare Intl to AustraliaDiscover last-minute flight deals from O'Hare Intl to Australia. Data last updated May 30, 2026 and is based on user searches.
Discover last-minute flight deals from O'Hare Intl to Australia. Data last updated May 30, 2026 and is based on user searches.
This FlightHub deal was found by Cheapflights users on 5/27. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/308:00 pm
ORD
- SYD
2 stops44h 20m
Air Canada
Tue 6/99:20 am
SYD
- ORD
1 stop20h 25m
Air Canada
Deal found 5/27![Air Canada logo]()
$1,295
This FlightHub deal was found by Cheapflights users on 5/27. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/308:00 pm
ORD
- SYD
2 stops44h 20m
Air Canada
Mon 6/89:20 am
SYD
- ORD
2 stops39h 58m
Air Canada
Deal found 5/27![Air Canada logo]()
$1,298
This Expedia deal was found by Cheapflights users on 5/27. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/18:50 am
ORD
- MEL
1 stop30h 55m
Qantas Airways
Mon 6/89:45 am
MEL
- ORD
1 stop21h 56m
Qantas Airways
Deal found 5/27![Qantas Airways logo]()
$1,300
This Justfly.com deal was found by Cheapflights users on 5/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com 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 5/30![Air Canada logo]()
$1,291
This FlightHub deal was found by Cheapflights users on 5/27. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/39:55 am
ORD
- SYD
2 stops30h 25m
Air Canada
Sun 8/309:20 am
SYD
- ORD
1 stop20h 16m
Air Canada
Deal found 5/27![Air Canada logo]()
$1,303
This KAYAK deal was found by Cheapflights users on 5/27. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/163:40 pm
ORD
- SYD
1 stop24h 40m
Multiple Airlines
Sun 7/269:20 am
SYD
- ORD
1 stop20h 16m
Multiple Airlines
Deal found 5/27![Multiple Airlines logo]()
$1,302
This Justfly.com deal was found by Cheapflights users on 5/27. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/163:40 pm
ORD
- SYD
1 stop24h 40m
Air Canada
Sun 7/269:20 am
SYD
- ORD
2 stops38h 40m
Air Canada
Deal found 5/27![Air Canada logo]()
$1,304
This Trip.com deal was found by Cheapflights users on 5/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/246:55 am
ORD
- BNE
3 stops36h 40m
Multiple Airlines
Mon 7/611:55 am
BNE
- ORD
2 stops33h 22m
Multiple Airlines
Deal found 5/29![Multiple Airlines logo]()
$1,289
This FlightHub deal was found by Cheapflights users on 5/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/246:00 am
ORD
- BNE
2 stops34h 05m
Air Canada
Mon 7/610:00 am
BNE
- ORD
2 stops38h 34m
Air Canada
Deal found 5/29![Air Canada logo]()
$1,309
This Trip.com deal was found by Cheapflights users on 5/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/257:20 am
ORD
- BNE
3 stops36h 20m
Multiple Airlines
Mon 7/611:55 am
BNE
- ORD
2 stops33h 22m
Multiple Airlines
Deal found 5/28![Multiple Airlines logo]()
$1,300
This Trip.com deal was found by Cheapflights users on 5/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/266:55 am
ORD
- BNE
3 stops36h 40m
Multiple Airlines
Mon 7/611:55 am
BNE
- ORD
2 stops33h 22m
Multiple Airlines
Deal found 5/29![Multiple Airlines logo]()
$1,301
This Trip.com deal was found by Cheapflights users on 5/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/297:20 am
ORD
- MEL
3 stops38h 05m
Multiple Airlines
Mon 7/61:30 pm
MEL
- ORD
2 stops31h 47m
Multiple Airlines
Deal found 5/30![Multiple Airlines logo]()
$1,238
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 30, 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 30, 2026.
This Trip.com deal was found by Cheapflights users on 5/26. 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.
Mon 8/249:07 pm
ORD
- SYD
2 stops45h 18m
Multiple Airlines
Deal found 5/26![Multiple Airlines logo]()
$551
This Trip.com deal was found by Cheapflights users on 5/26. 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.
Sat 8/299:07 pm
ORD
- SYD
2 stops45h 18m
Multiple Airlines
Deal found 5/26![Multiple Airlines logo]()
$553
This Kiwi.com deal was found by Cheapflights users on 5/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/199:07 pm
ORD
- MEL
3 stops59h 18m
Multiple Airlines
Deal found 5/28![Multiple Airlines logo]()
$579
This Kiwi.com deal was found by Cheapflights users on 5/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/199:07 pm
ORD
- AVV
3 stops51h 13m
Multiple Airlines
Deal found 5/28![Multiple Airlines logo]()
$605
This BusinessClass deal was found by Cheapflights users on 5/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure 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 5/30![Multiple Airlines logo]()
$616
This Kiwi.com deal was found by Cheapflights users on 5/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/39:07 pm
ORD
- SYD
1 stop43h 23m
Multiple Airlines
Deal found 5/26![Multiple Airlines logo]()
$630
This Kiwi.com deal was found by Cheapflights users on 5/26. 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.
Sat 8/299:07 pm
ORD
- BNE
1 stop40h 53m
Multiple Airlines
Deal found 5/26![Multiple Airlines logo]()
$630
This Kiwi.com deal was found by Cheapflights users on 5/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/319:07 pm
ORD
- MEL
3 stops52h 28m
Multiple Airlines
Deal found 5/27![Multiple Airlines logo]()
$647
This Kiwi.com deal was found by Cheapflights users on 5/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/59:13 pm
ORD
- MEL
3 stops52h 17m
Multiple Airlines
Deal found 5/28![Multiple Airlines logo]()
$663
This Kiwi.com deal was found by Cheapflights users on 5/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/299:07 pm
ORD
- MEL
3 stops54h 08m
Multiple Airlines
Deal found 5/29![Multiple Airlines logo]()
$664
This Kiwi.com deal was found by Cheapflights users on 5/26. 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.
Tue 8/189:07 pm
ORD
- PER
3 stops51h 58m
Multiple Airlines
Deal found 5/26![Multiple Airlines logo]()
$667
This Kiwi.com deal was found by Cheapflights users on 5/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/216:00 am
ORD
- SYD
2 stops33h 30m
Multiple Airlines
Deal found 5/26![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 30, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $1,193 (Jetabroad) |
One-way from | $551 (Trip.com) |
Popular in | December |
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 30, 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
ChicagoBrisbane
ORD - BNE
ORDBNE
Chicago O'Hare Intl
Mon 9/7
2:01 pm-7:05 am
2 stops26h 04m
Brisbane
Sat 9/12
8:40 pm-10:05 pm
3 stops40h 25m
$1,322
ChicagoSydney
ORD - SYD
ORDSYD
Chicago O'Hare Intl
Sun 10/18
5:45 pm-8:10 pm
1 stop34h 25m
Sydney Kingsford Smith
Sat 10/24
12:45 pm-4:45 am
2 stops32h 00m
$1,372
ChicagoAdelaide
ORD - ADL
ORDADL
Chicago O'Hare Intl
Mon 10/19
3:40 pm-1:55 pm
2 stops30h 45m
Adelaide
Tue 11/10
6:10 am-2:41 pm
2 stops25h 01m
$1,375
ChicagoAdelaide
ORD - ADL
ORDADL
Chicago O'Hare Intl
Mon 10/19
9:50 am-1:55 pm
3 stops36h 35m
Adelaide
Tue 11/10
6:10 am-4:38 pm
2 stops26h 58m
$1,389
ChicagoMelbourne
ORD - MEL
ORDMEL
Chicago O'Hare Intl
Wed 6/24
4:45 pm-8:15 am
2 stops24h 30m
Melbourne
Mon 7/27
10:55 am-6:35 pm
1 stop22h 40m
$1,403
ChicagoSydney
ORD - SYD
ORDSYD
Chicago O'Hare Intl
Mon 7/6
8:50 am-6:55 am
1 stop31h 05m
Sydney Kingsford Smith
Mon 7/27
10:20 am-2:50 pm
1 stop19h 30m
$1,409
ChicagoSydney
ORD - SYD
ORDSYD
Chicago O'Hare Intl
Tue 6/9
2:45 pm-6:50 am
1 stop25h 05m
Sydney Kingsford Smith
Mon 6/22
9:15 am-1:50 pm
1 stop19h 35m
$1,410
ChicagoMelbourne
ORD - MEL
ORDMEL
Chicago O'Hare Intl
Sun 11/22
2:55 pm-9:50 am
1 stop25h 55m
Melbourne
Mon 11/30
12:00 pm-5:21 pm
1 stop22h 21m
$1,411
ChicagoMelbourne
ORD - MEL
ORDMEL
Chicago O'Hare Intl
Mon 11/16
11:30 am-9:50 am
2 stops29h 20m
Melbourne
Wed 11/25
12:00 pm-5:21 pm
1 stop22h 21m
$1,414
ChicagoSydney
ORD - SYD
ORDSYD
Chicago O'Hare Intl
Wed 8/12
4:45 pm-6:55 am
2 stops23h 10m
Sydney Kingsford Smith
Wed 8/19
10:20 am-5:05 pm
2 stops21h 45m
$1,414
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-BNE
ORD-SYD
ORD-AVV
ORD-PER
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-BNE
ORD-SYD
ORD-AVV
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 30, 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.
Crew
8.5
Entertainment
7.4
Comfort
8.0
Overall
8.0
Food
7.4
Boarding
8.2
Reviews
1 / 20
6.0
GoodAnonymous,Mar 2026
SIN - AKL
Crew
8.5
Entertainment
7.4
Comfort
8.0
Overall
8.0
Food
7.4
Boarding
8.2
Reviews
1 / 20
6.0
GoodAnonymous,Mar 2026
SIN - AKL
Crew
8.5
Entertainment
7.4
Comfort
8.0
Overall
8.0
Food
7.4
Boarding
8.2
Reviews
1 / 20
6.0
GoodAnonymous,Mar 2026
SIN - AKL
Crew
8.5
Entertainment
7.4
Comfort
8.0
Overall
8.0
Food
7.4
Boarding
8.2
Reviews
1 / 20
6.0
GoodAnonymous,Mar 2026
SIN - AKL
Crew
8.5
Entertainment
7.4
Comfort
8.0
Overall
8.0
Food
7.4
Boarding
8.2
Reviews
1 / 20
6.0
GoodAnonymous,Mar 2026
SIN - AKL
Crew
8.5
Entertainment
7.4
Comfort
8.0
Overall
8.0
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 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
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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 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 30, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Fly to Australia regions
Consider these flights traveling to Australia regions.
Top 10 airlines flying from O'Hare Intl to Australia
Discover the top 10 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 30, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$198 | Average$1,523 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$229 | Average$1,418 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$712 | Average$1,137 | FlexibilityNo cancel fee | On-time67% | |
| Cheapest$716 | Average$1,206 | FlexibilityNo cancel fee | On-time74% | |
| Cheapest$836 | Average$1,588 | FlexibilityNo cancel fee | On-time74% | |
| Cheapest$870 | Average$1,692 | 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$1,502 | Average$1,890 | FlexibilityNo cancel fee | On-time72% |