$431+ Cheap flights from Australia to Illinois
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/2. Fares are subject to change and may not be available on all flights or dates of travel.
SYD — ORD
Dec 5 — Dec 121
Round-trip
1 adult, Economy
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Cheapest flights from Australia to IllinoisExplore the most affordable flight options available from Australia to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 5, 2026.
Explore the most affordable flight options available from Australia to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 5, 2026.
This Qantas Airways deal was found by Cheapflights users on 11/3. 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 Qantas Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/411:10 am -
1 stop22h 50m
Wed 11/116:45 pm -
1 stop21h 15m
Deal found 11/3![Qantas Airways logo]()
$732
This American Airlines deal was found by Cheapflights users on 10/31. Clicking the “Pick Dates” 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.
Thu 11/1211:10 am -
1 stop23h 49m
Mon 11/165:15 pm -
1 stop22h 45m
Deal found 10/31![American Airlines logo]()
$735
This American Airlines deal was found by Cheapflights users on 11/1. Clicking the “Pick Dates” 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 11/211:10 am -
1 stop28h 20m
Sun 11/1510:32 am -
1 stop29h 28m
Deal found 11/1![American Airlines logo]()
$736
This Delta deal was found by Cheapflights users on 11/1. Clicking the “Pick Dates” 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 11/910:40 am -
2 stops28h 07m
Mon 11/2311:19 am -
2 stops28h 11m
Deal found 11/1![Delta logo]()
$739
This Delta deal was found by Cheapflights users on 11/1. Clicking the “Pick Dates” 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 11/210:40 am -
2 stops28h 25m
Sun 11/152:32 pm -
1 stop24h 58m
Deal found 11/1![Delta logo]()
$741
This Bravofly deal was found by Cheapflights users on 11/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Bravofly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/1611:10 am -
1 stop21h 55m
Mon 11/309:03 pm -
1 stop42h 57m
Deal found 11/2![Qantas Airways logo]()
$757
This Ovago deal was found by Cheapflights users on 11/1. Clicking the “Pick Dates” 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 11/211:10 am -
1 stop28h 20m
Tue 11/106:45 pm -
1 stop21h 15m
Deal found 11/1![Qantas Airways logo]()
$764
This Qantas Airways deal was found by Cheapflights users on 11/3. 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 Qantas Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/2611:15 am -
1 stop22h 27m
Thu 12/35:15 pm -
1 stop22h 45m
Deal found 11/3![Multiple Airlines logo]()
$782
This American Airlines deal was found by Cheapflights users on 10/31. Clicking the “Pick Dates” 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.
Fri 12/2511:10 am -
2 stops23h 50m
Tue 1/196:00 am -
1 stop34h 00m
Deal found 10/31![American Airlines logo]()
$784
This American Airlines deal was found by Cheapflights users on 10/31. Clicking the “Pick Dates” 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.
Thu 11/1211:10 am -
2 stops21h 50m
Sat 11/286:40 am -
1 stop33h 20m
Deal found 10/31![American Airlines logo]()
$785
This oojo deal was found by Cheapflights users on 11/2. Clicking the “Pick Dates” 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 11/176:00 am -
2 stops27h 05m
Tue 2/23:06 pm -
2 stops26h 29m
Deal found 11/2![Qantas Airways logo]()
$990
This KAYAK deal was found by Cheapflights users on 11/3. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/159:00 pm -
2 stops36h 05m
Wed 11/253:25 pm -
2 stops25h 40m
Deal found 11/3![Qantas Airways logo]()
$1,081
Best flights from Australia to IllinoisDiscover carefully curated flight deals from Australia to Illinois that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated November 5, 2026.
Discover carefully curated flight deals from Australia to Illinois that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated November 5, 2026.
This Delta deal was found by Cheapflights users on 11/2. Clicking the “Pick Dates” 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 11/1610:40 am -
1 stop30h 15m
Mon 11/307:45 am -
1 stop31h 45m
Deal found 11/2![Delta logo]()
$739
This Qantas Airways deal was found by Cheapflights users on 11/3. 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 Qantas Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/2611:15 am -
1 stop22h 27m
Thu 12/35:15 pm -
1 stop22h 45m
Deal found 11/3![Multiple Airlines logo]()
$782
This Qantas Airways deal was found by Cheapflights users on 11/3. 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 Qantas Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/218:15 am -
2 stops24h 44m
Sat 5/295:10 pm -
2 stops26h 25m
Deal found 11/3![Qantas Airways logo]()
$1,150
This United Airlines deal was found by Cheapflights users on 10/31. Clicking the “Pick Dates” 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 2/611:20 am -
2 stops25h 39m
Tue 2/98:15 am -
2 stops31h 15m
Deal found 10/31![United Airlines logo]()
$1,295
This Cathay Pacific deal was found by Cheapflights users on 10/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/2512:45 am -
1 stop28h 45m
Mon 3/12:10 pm -
1 stop29h 20m
Deal found 10/31![Cathay Pacific logo]()
$1,322
This Qatar Airways deal was found by Cheapflights users on 11/4. 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.
Thu 2/44:10 pm -
1 stop39h 20m
Mon 2/86:50 pm -
1 stop30h 00m
Deal found 11/4![Qatar Airways logo]()
$1,557
This Trip.com deal was found by Cheapflights users on 11/1. Clicking the “Pick Dates” 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 11/2611:15 am -
2 stops26h 45m
Wed 12/22:29 pm -
2 stops27h 31m
Deal found 11/1![Air New Zealand logo]()
$1,579
This American Airlines deal was found by Cheapflights users on 11/2. Clicking the “Pick Dates” 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.
Sat 2/69:40 am -
1 stop22h 53m
Tue 2/97:54 am -
2 stops53h 56m
Deal found 11/2![American Airlines logo]()
$1,708
This Bravofly deal was found by Cheapflights users on 11/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Bravofly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/297:45 pm -
2 stops52h 15m
Sun 12/610:25 am -
2 stops30h 05m
Deal found 11/1![Japan Airlines logo]()
$1,932
This KAYAK deal was found by Cheapflights users on 10/31. Clicking the “Pick Dates” 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 12/29:55 pm -
1 stop29h 55m
Mon 12/710:30 am -
1 stop43h 45m
Deal found 10/31![ANA logo]()
$2,056
This Emirates deal was found by Cheapflights users on 11/4. 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 Emirates is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/2610:20 pm -
1 stop30h 25m
Thu 4/298:35 pm -
1 stop32h 00m
Deal found 11/4![Emirates logo]()
$2,238
This Delta deal was found by Cheapflights users on 11/3. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/2310:40 am -
1 stop23h 47m
Tue 12/88:04 am -
2 stops31h 26m
Deal found 11/3![Delta logo]()
$1,385
This Qantas Airways deal was found by Cheapflights users on 11/3. 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 Qantas Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 1/1811:00 am -
2 stops24h 24m
Tue 5/258:50 am -
1 stop30h 55m
Deal found 11/3![Qantas Airways logo]()
$1,423
This Qatar Airways deal was found by Cheapflights users on 11/5. 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/176:20 pm -
2 stops37h 10m
Tue 2/26:50 pm -
1 stop35h 30m
Deal found 11/5![Multiple Airlines logo]()
$1,438
This Delta deal was found by Cheapflights users on 11/1. Clicking the “Pick Dates” 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 11/1610:40 am -
2 stops28h 07m
Thu 12/38:39 am -
2 stops30h 51m
Deal found 11/1![Delta logo]()
$1,441
This Air New Zealand deal was found by Cheapflights users on 11/4. 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 Air New Zealand is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/2310:20 am -
2 stops25h 35m
Sun 2/72:22 pm -
2 stops25h 33m
Deal found 11/4![Air New Zealand logo]()
$1,602
This Mytrip deal was found by Cheapflights users on 11/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/266:05 am -
3 stops40h 09m
Wed 12/27:00 am -
2 stops30h 50m
Deal found 11/1![Multiple Airlines logo]()
$1,463
This Cathay Pacific deal was found by Cheapflights users on 11/3. 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 Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/512:15 pm -
1 stop40h 15m
Tue 2/92:10 pm -
1 stop28h 35m
Deal found 11/3![Cathay Pacific logo]()
$1,610
This oojo deal was found by Cheapflights users on 11/3. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/15:35 am -
2 stops27h 07m
Tue 12/85:00 pm -
1 stop21h 30m
Deal found 11/3![Qantas Airways logo]()
$1,495
This United Airlines deal was found by Cheapflights users on 11/3. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 1/1912:45 pm -
1 stop21h 05m
Sat 5/299:30 pm -
1 stop43h 45m
Deal found 11/3![United Airlines logo]()
$1,721
This Cathay Pacific deal was found by Cheapflights users on 11/4. 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 Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/75:20 pm -
2 stops35h 35m
Mon 4/194:15 pm -
2 stops34h 45m
Deal found 11/4![Multiple Airlines logo]()
$1,507
This Bravofly deal was found by Cheapflights users on 11/3. 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 Bravofly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/241:10 pm -
1 stop20h 20m
Tue 1/123:06 pm -
2 stops27h 54m
Deal found 11/3![Qantas Airways logo]()
$1,510
This Cathay Pacific deal was found by Cheapflights users on 11/3. 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 Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 1/3112:00 pm -
1 stop41h 00m
Wed 2/32:10 pm -
1 stop27h 50m
Deal found 11/3![Cathay Pacific logo]()
$1,687
This United Airlines deal was found by Cheapflights users on 11/3. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 1/1212:45 pm -
2 stops24h 55m
Sat 3/279:40 pm -
1 stop43h 35m
Deal found 11/3![United Airlines logo]()
$1,814
This Cathay Pacific deal was found by Cheapflights users on 11/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/1611:45 am -
2 stops41h 45m
Mon 11/302:10 pm -
2 stops32h 45m
Deal found 11/2![Multiple Airlines logo]()
$1,539
This Delta deal was found by Cheapflights users on 11/3. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 1/1810:10 am -
1 stop24h 43m
Mon 5/312:55 pm -
1 stop25h 55m
Deal found 11/3![Delta logo]()
$1,716
This oojo deal was found by Cheapflights users on 10/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/210:45 pm -
1 stop29h 45m
Mon 12/72:34 pm -
2 stops38h 11m
Deal found 10/31![Qatar Airways logo]()
$2,107
This American Airlines deal was found by Cheapflights users on 11/3. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 1/316:00 am -
2 stops39h 32m
Wed 2/33:52 pm -
2 stops26h 38m
Deal found 11/3![American Airlines logo]()
$2,138
This Japan Airlines deal was found by Cheapflights users on 11/3. 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 Japan Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/2612:15 pm -
2 stops35h 30m
Thu 4/292:10 pm -
2 stops45h 30m
Deal found 11/3![Japan Airlines logo]()
$2,202
This Cathay Pacific deal was found by Cheapflights users on 11/4. 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 Cathay Pacific is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/45:40 pm -
2 stops58h 50m
Mon 2/82:10 pm -
2 stops52h 45m
Deal found 11/4![Cathay Pacific logo]()
$1,848
Last-minute flights from Australia to IllinoisDiscover last-minute flight deals from Australia to Illinois. Data last updated November 5, 2026 and is based on user searches.
Discover last-minute flight deals from Australia to Illinois. Data last updated November 5, 2026 and is based on user searches.
This Qantas Airways deal was found by Cheapflights users on 11/3. 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 Qantas Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/411:10 am -
1 stop22h 50m
Wed 11/116:45 pm -
1 stop21h 15m
Deal found 11/3![Qantas Airways logo]()
$732
This American Airlines deal was found by Cheapflights users on 11/1. Clicking the “Pick Dates” 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 11/911:10 am -
1 stop23h 49m
Mon 11/239:03 pm -
1 stop42h 57m
Deal found 11/1![American Airlines logo]()
$736
This Delta deal was found by Cheapflights users on 11/1. Clicking the “Pick Dates” 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 11/910:40 am -
1 stop30h 15m
Mon 11/232:32 pm -
1 stop24h 58m
Deal found 11/1![Delta logo]()
$739
This American Airlines deal was found by Cheapflights users on 10/31. Clicking the “Pick Dates” 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.
Thu 11/1211:10 am -
1 stop23h 49m
Mon 11/165:15 pm -
1 stop22h 45m
Deal found 10/31![American Airlines logo]()
$735
This American Airlines deal was found by Cheapflights users on 10/31. Clicking the “Pick Dates” 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.
Thu 11/1211:10 am -
2 stops21h 50m
Sat 11/286:40 am -
1 stop33h 20m
Deal found 10/31![American Airlines logo]()
$785
This Delta deal was found by Cheapflights users on 10/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/1210:40 am -
2 stops28h 07m
Sat 11/289:59 am -
2 stops29h 31m
Deal found 10/31![Delta logo]()
$788
This KAYAK deal was found by Cheapflights users on 11/3. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/159:00 pm -
2 stops36h 05m
Wed 11/253:25 pm -
2 stops25h 40m
Deal found 11/3![Qantas Airways logo]()
$1,081
This Bravofly deal was found by Cheapflights users on 11/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Bravofly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/1611:10 am -
1 stop21h 55m
Mon 11/309:03 pm -
1 stop42h 57m
Deal found 11/2![Qantas Airways logo]()
$757
This oojo deal was found by Cheapflights users on 11/2. Clicking the “Pick Dates” 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 11/176:00 am -
2 stops27h 05m
Tue 2/23:06 pm -
2 stops26h 29m
Deal found 11/2![Qantas Airways logo]()
$990
This Qantas Airways deal was found by Cheapflights users on 11/3. 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 Qantas Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/2611:15 am -
1 stop22h 27m
Thu 12/35:15 pm -
1 stop22h 45m
Deal found 11/3![Multiple Airlines logo]()
$782
This Globehunters deal was found by Cheapflights users on 11/3. 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 Globehunters is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/2611:10 am -
1 stop21h 06m
Thu 12/33:25 pm -
1 stop24h 35m
Deal found 11/3![Qantas Airways logo]()
$794
This American Airlines deal was found by Cheapflights users on 10/31. Clicking the “Pick Dates” 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.
Fri 12/2511:10 am -
2 stops23h 50m
Tue 1/196:00 am -
1 stop34h 00m
Deal found 10/31![American Airlines logo]()
$784
One-way flights from Australia to IllinoisSearch for one-way flight options from Australia to Illinois. Find affordable one-way fares based on user searches. Data last updated November 5, 2026.
Search for one-way flight options from Australia to Illinois. Find affordable one-way fares based on user searches. Data last updated November 5, 2026.
This Delta deal was found by Cheapflights users on 11/1. Clicking the “Pick Dates” 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 2/210:40 am -
2 stops27h 56m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/1![Delta logo]()
$431
This Kiwi.com deal was found by Cheapflights users on 11/1. Clicking the “Pick Dates” 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 2/22:00 pm -
3 stops27h 26m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/1![Multiple Airlines logo]()
$469
This Trip.com deal was found by Cheapflights users on 11/4. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/286:00 am -
2 stops42h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/4![Multiple Airlines logo]()
$471
This Booking.com deal was found by Cheapflights users on 11/3. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/26:00 am -
3 stops35h 53m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/3![Multiple Airlines logo]()
$477
This Kiwi.com deal was found by Cheapflights users on 11/4. 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 2/62:00 pm -
3 stops27h 26m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/4![Multiple Airlines logo]()
$487
This Delta deal was found by Cheapflights users on 11/2. Clicking the “Pick Dates” 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 3/510:40 am -
2 stops30h 19m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/2![Delta logo]()
$490
This Kiwi.com deal was found by Cheapflights users on 11/4. 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.
Fri 3/52:00 pm -
2 stops34h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/4![Multiple Airlines logo]()
$521
This Kiwi.com deal was found by Cheapflights users on 11/2. Clicking the “Pick Dates” 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 3/302:15 pm -
2 stops32h 50m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/2![Multiple Airlines logo]()
$528
This Kiwi.com deal was found by Cheapflights users on 11/3. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/171:45 pm -
3 stops27h 36m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/3![Multiple Airlines logo]()
$571
This Trip.com deal was found by Cheapflights users on 11/4. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/2411:25 am -
2 stops34h 49m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/4![Multiple Airlines logo]()
$625
This SmartFares deal was found by Cheapflights users on 11/3. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/173:30 pm -
1 stop38h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/3![Cathay Pacific logo]()
$669
This SmartFares deal was found by Cheapflights users on 10/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/143:30 pm -
1 stop38h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/31![Cathay Pacific logo]()
$692
Find flight deals from Australia to Illinois
Keep the following information in mind while searching for Australia to Illinois flight deals. Data was last updated November 5, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $735 (American Airlines) |
One-way from | $431 (Delta) |
Popular in | May |
Cheapest in | November |
Average price | $1,066 |
Cheapflights Fare Finder
Customize your flight search to find flights from Australia to Illinois 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 7,457,451 searches. Data last updated November 5, 2026.
Use the filters below to find and compare flights from Australia to Illinois that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
SydneyChicago
SYD Sydney Kingsford Smith - ORD Chicago O'Hare Intl
SYDORD
Sydney Kingsford Smith
Tue 2/2
10:40 am-9:36 pm
2 stops27h 56m
Chicago O'Hare Intl
Wed 12/31
12:00 am-4:00 pm
Nonstop0h 00m
$431
Quickest round-trip
SydneyChicago
SYD Sydney Kingsford Smith - ORD Chicago O'Hare Intl
SYDORD
Sydney Kingsford Smith
Sat 3/6
10:40 am-1:47 pm
1 stop20h 07m
Chicago O'Hare Intl
Wed 12/31
12:00 am-4:00 pm
Nonstop0h 00m
$490
SydneyChicago
SYD Sydney Kingsford Smith - ORD Chicago O'Hare Intl
SYDORD
Sydney Kingsford Smith
Fri 3/5
10:40 am-11:59 pm
2 stops30h 19m
Chicago O'Hare Intl
Wed 12/31
12:00 am-4:00 pm
Nonstop0h 00m
$490
MelbourneChicago
MEL Melbourne - ORD Chicago O'Hare Intl
MELORD
Melbourne
Tue 11/17
1:45 pm-12:21 am
3 stops27h 36m
Chicago O'Hare Intl
Wed 12/31
12:00 am-4:00 pm
Nonstop0h 00m
$571
SydneyChicago
SYD Sydney Kingsford Smith - ORD Chicago O'Hare Intl
SYDORD
Sydney Kingsford Smith
Sat 3/20
2:00 pm-6:10 am
3 stops32h 10m
Chicago O'Hare Intl
Wed 12/31
12:00 am-4:00 pm
Nonstop0h 00m
$674
SydneyChicago
SYD Sydney Kingsford Smith - ORD Chicago O'Hare Intl
SYDORD
Sydney Kingsford Smith
Sat 3/6
2:00 pm-1:54 pm
3 stops40h 54m
Chicago O'Hare Intl
Wed 12/31
12:00 am-4:00 pm
Nonstop0h 00m
$688
MelbourneChicago
MEL Melbourne - ORD Chicago O'Hare Intl
MELORD
Melbourne
Wed 11/18
11:40 pm-2:30 pm
1 stop31h 50m
Chicago O'Hare Intl
Wed 12/31
12:00 am-4:00 pm
Nonstop0h 00m
$708
SydneyChicago
SYD Sydney Kingsford Smith - ORD Chicago O'Hare Intl
SYDORD
Sydney Kingsford Smith
Mon 11/16
10:40 am-11:55 pm
1 stop30h 15m
Chicago O'Hare Intl
Mon 11/30
7:45 am-8:30 am
1 stop31h 45m
$739
AdelaideChicago
ADL Adelaide - ORD Chicago O'Hare Intl
ADLORD
Adelaide
Wed 4/28
10:15 am-1:55 pm
2 stops42h 10m
Chicago O'Hare Intl
Wed 12/31
12:00 am-3:30 pm
Nonstop0h 00m
$759
PerthChicago
PER Perth - ORD Chicago O'Hare Intl
PERORD
Perth
Sat 11/21
5:45 pm-6:14 am
3 stops50h 29m
Chicago O'Hare Intl
Wed 12/31
12:00 am-2:00 pm
Nonstop0h 00m
$764
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Australia to Illinois
Have a flexible travel schedule? Discover the best time to fly to Illinois from Australia with our price prediction graph.
SYD-ORD
MEL-ORD
ADL-ORD
PER-ORD
BNE-ORD
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 Australia to Illinois
AU0-USIL
SYD-ORD
MEL-ORD
ADL-ORD
PER-ORD
What is the cheapest month to book a flight from Australia to Illinois?
Currently, March is the cheapest month in which you can book a flight from Australia to Illinois (average of $1,147). Flying from Australia to Illinois in December is currently the most expensive (average of $1,493). 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 Australia to Illinois?
The best time to book flights from Australia to Illinois is 67 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
Reviews of airlines servicing Illinois
Get insights into the airlines that provide service to Illinois. 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 Illinois. Reviews last updated November 5, 2026.
Peruse reviews from past customers who have flown with Qantas Airways and United Airlines from Australia to Illinois to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Comfort
7.5
Boarding
7.7
Food
7.0
Overall
7.5
Entertainment
7.2
Crew
8.1
Reviews
1 / 20
10.0
ExcellentTania,May 2026
SYD - DFW
Comfort
7.5
Boarding
7.7
Food
7.0
Overall
7.5
Entertainment
7.2
Crew
8.1
Reviews
1 / 20
10.0
ExcellentTania,May 2026
SYD - DFW
Comfort
7.5
Boarding
7.7
Food
7.0
Overall
7.5
Entertainment
7.2
Crew
8.1
Reviews
1 / 20
10.0
ExcellentTania,May 2026
SYD - DFW
Related info for your journey
Find useful and relevant information for your journey from Australia to Illinois. 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
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Alternative routes for Australia to Illinois
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Illinois by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Australia to Illinois by cabin class
Find flights from Australia to Illinois, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Australia and Illinois flights
Browse other Australia and Illinois flight options. Last updated on November 5, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Find a return flight route from Illinois
Find the right flight back to Australia after your stay in Illinois
Australia to Illinois flights
Consider these flights traveling from Australia to Illinois.
Top airline flying from Australia to Illinois
Discover the top airline that operate flights from Australia to Illinois. 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 7,457,451 searches. Data last updated November 5, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$970 | Average$1,633 | FlexibilityNo cancel fee | On-time74% |