$138+ Cheap flights from Austin (AUS) 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 11/22. Fares are subject to change and may not be available on all flights or dates of travel.
AUS — ORD
Nov 24 — Dec 11
Round-trip
1 adult, Economy
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Find cheap flights from Austin to Illinois 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
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Cheapest flights from Austin to IllinoisExplore the most affordable flight options available from Austin to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 25, 2026.
Explore the most affordable flight options available from Austin to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 25, 2026.
This Southwest deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/107:05 am -
Nonstop2h 35m
Sun 11/159:50 pm -
Nonstop2h 50m
Deal found 10/23![Southwest logo]()
$252
This Mytrip deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/219:32 pm -
1 stop7h 38m
Mon 11/236:40 am -
2 stops15h 24m
Deal found 10/24![Frontier logo]()
$252
This Southwest deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/167:05 am -
Nonstop2h 35m
Sun 12/206:30 am -
Nonstop2h 50m
Deal found 10/22![Southwest logo]()
$253
This Kiwi.com deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/1312:24 pm -
1 stop6h 21m
Sun 11/156:00 am -
2 stops53h 25m
Deal found 10/23![Frontier logo]()
$253
This Southwest deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/114:05 pm -
1 stop4h 25m
Mon 12/148:10 am -
1 stop5h 40m
Deal found 10/22![Southwest logo]()
$254
This Frontier deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/198:27 pm -
1 stop9h 22m
Wed 12/237:35 am -
1 stop12h 07m
Deal found 10/24![Frontier logo]()
$254
This Kiwi.com deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/128:21 pm -
2 stops27h 26m
Tue 11/176:42 pm -
1 stop16h 57m
Deal found 10/23![Frontier logo]()
$255
This American Airlines deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/166:31 am -
Nonstop2h 59m
Sun 12/209:30 pm -
Nonstop2h 51m
Deal found 10/22![American Airlines logo]()
$255
This Mytrip deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/115:50 pm -
2 stops17h 43m
Mon 12/1410:40 am -
2 stops23h 34m
Deal found 10/22![Frontier logo]()
$256
This United Airlines deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/123:49 pm -
Nonstop2h 52m
Sun 11/158:40 am -
Nonstop3h 01m
Deal found 10/22![United Airlines logo]()
$256
This Delta deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/105:20 am -
1 stop6h 39m
Fri 11/131:05 pm -
1 stop7h 25m
Deal found 10/24![Delta logo]()
$257
This Frontier deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/264:40 pm -
1 stop8h 02m
Fri 11/276:40 am -
1 stop12h 29m
Deal found 10/22![Frontier logo]()
$257
Best flights from Austin to IllinoisDiscover carefully curated flight deals from Austin to Illinois that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 25, 2026.
Discover carefully curated flight deals from Austin to Illinois that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 25, 2026.
This Delta deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/211:00 am -
1 stop5h 50m
Fri 2/56:00 am -
1 stop7h 56m
Deal found 10/23![Delta logo]()
$258
This United Airlines deal was found by Cheapflights users on 10/20. 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.
Wed 12/169:45 am -
1 stop6h 45m
Fri 12/187:45 pm -
Nonstop3h 05m
Deal found 10/20![United Airlines logo]()
$265
This Southwest deal was found by Cheapflights users on 10/19. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/295:00 am -
Nonstop2h 25m
Fri 1/297:55 pm -
Nonstop2h 50m
Deal found 10/19![Southwest logo]()
$271
This American Airlines deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” 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.
Tue 11/175:46 pm -
1 stop5h 31m
Sat 12/55:44 am -
1 stop5h 48m
Deal found 10/21![American Airlines logo]()
$359
This Alaska Airlines deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/101:45 pm -
2 stops15h 55m
Sat 11/147:20 am -
1 stop8h 25m
Deal found 10/22![Alaska Airlines logo]()
$543
This Southwest deal was found by Cheapflights users on 10/20. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/139:40 pm -
Nonstop2h 30m
Sun 11/159:50 pm -
Nonstop2h 50m
Deal found 10/20![Southwest logo]()
$284
This Delta deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/183:05 pm -
1 stop5h 48m
Mon 1/45:55 pm -
1 stop6h 37m
Deal found 10/23![Delta logo]()
$299
This Southwest deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/225:30 am -
1 stop4h 55m
Fri 11/275:15 am -
Nonstop2h 45m
Deal found 10/22![Southwest logo]()
$292
This Southwest deal was found by Cheapflights users on 10/20. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/229:40 pm -
Nonstop2h 30m
Mon 11/307:20 pm -
1 stop6h 00m
Deal found 10/20![Southwest logo]()
$296
This United Airlines deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/2012:49 pm -
Nonstop2h 49m
Sun 11/227:55 pm -
Nonstop2h 57m
Deal found 10/23![United Airlines logo]()
$364
This American Airlines deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” 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 12/127:00 am -
1 stop4h 50m
Fri 12/185:19 pm -
1 stop6h 40m
Deal found 10/21![American Airlines logo]()
$368
This United Airlines deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/65:00 pm -
1 stop6h 13m
Tue 11/1010:43 am -
1 stop5h 19m
Deal found 10/22![United Airlines logo]()
$369
This Southwest deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/267:50 am -
1 stop4h 45m
Thu 11/263:50 pm -
Nonstop2h 45m
Deal found 10/22![Southwest logo]()
$306
This American Airlines deal was found by Cheapflights users on 10/20. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/236:00 am -
1 stop7h 59m
Mon 11/234:07 pm -
1 stop6h 50m
Deal found 10/20![American Airlines logo]()
$398
This United Airlines deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” 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 11/47:00 am -
1 stop6h 55m
Sat 11/72:31 pm -
2 stops8h 44m
Deal found 10/21![United Airlines logo]()
$374
This Southwest deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/238:55 pm -
1 stop4h 05m
Mon 12/285:10 am -
1 stop5h 20m
Deal found 10/23![Southwest logo]()
$315
This Delta deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/245:20 am -
1 stop7h 31m
Wed 12/21:02 pm -
1 stop7h 33m
Deal found 10/24![Delta logo]()
$426
This American Airlines deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/304:29 pm -
2 stops7h 42m
Fri 11/65:13 pm -
1 stop6h 46m
Deal found 10/22![American Airlines logo]()
$404
This Southwest deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/2912:15 pm -
Nonstop2h 30m
Fri 1/18:55 pm -
Nonstop2h 50m
Deal found 10/22![Southwest logo]()
$336
This United Airlines deal was found by Cheapflights users on 10/20. 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.
Wed 1/62:06 pm -
1 stop7h 09m
Sat 1/96:27 am -
2 stops10h 54m
Deal found 10/20![United Airlines logo]()
$412
This KAYAK deal was found by Cheapflights users on 10/19. 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.
Mon 11/23:47 pm -
Nonstop2h 58m
Wed 11/49:12 pm -
Nonstop2h 54m
Deal found 10/19![American Airlines logo]()
$422
This United Airlines deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/197:14 pm -
1 stop5h 30m
Fri 12/252:35 pm -
2 stops8h 24m
Deal found 10/23![United Airlines logo]()
$414
This Southwest deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/209:40 pm -
Nonstop2h 30m
Sun 11/225:15 am -
Nonstop2h 45m
Deal found 10/23![Southwest logo]()
$344
This Delta deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” 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 11/285:20 am -
1 stop5h 19m
Mon 11/308:04 am -
1 stop5h 49m
Deal found 10/21![Delta logo]()
$510
This American Airlines deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/265:00 am -
1 stop5h 42m
Wed 12/306:00 am -
1 stop4h 40m
Deal found 10/24![American Airlines logo]()
$428
This United Airlines deal was found by Cheapflights users on 10/20. 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.
Sat 1/95:33 pm -
1 stop5h 51m
Mon 1/112:26 pm -
2 stops8h 48m
Deal found 10/20![United Airlines logo]()
$415
This American Airlines deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/285:14 pm -
2 stops7h 02m
Fri 1/15:00 am -
1 stop5h 10m
Deal found 10/23![American Airlines logo]()
$433
This Southwest deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/64:05 pm -
1 stop4h 30m
Mon 11/99:50 pm -
Nonstop2h 50m
Deal found 10/21![Southwest logo]()
$370
This United Airlines deal was found by Cheapflights users on 10/20. 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.
Wed 11/43:57 pm -
1 stop5h 16m
Sun 11/86:25 am -
1 stop5h 16m
Deal found 10/20![United Airlines logo]()
$432
This Delta deal was found by Cheapflights users on 10/20. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/155:20 am -
1 stop6h 06m
Mon 11/164:28 pm -
1 stop5h 42m
Deal found 10/20![Delta logo]()
$587
Last-minute flights from Austin to IllinoisDiscover last-minute flight deals from Austin to Illinois. Data last updated October 25, 2026 and is based on user searches.
Discover last-minute flight deals from Austin to Illinois. Data last updated October 25, 2026 and is based on user searches.
This Mytrip deal was found by Cheapflights users on 10/20. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/312:24 pm -
1 stop6h 06m
Tue 11/104:36 pm -
2 stops26h 50m
Deal found 10/20![Frontier logo]()
$258
This Southwest deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/107:05 am -
Nonstop2h 35m
Sun 11/159:50 pm -
Nonstop2h 50m
Deal found 10/23![Southwest logo]()
$252
This American Airlines deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/108:11 am -
Nonstop2h 54m
Sun 11/159:12 pm -
Nonstop2h 54m
Deal found 10/23![American Airlines logo]()
$254
This Delta deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/105:20 am -
1 stop6h 39m
Fri 11/131:05 pm -
1 stop7h 25m
Deal found 10/24![Delta logo]()
$257
This Kiwi.com deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/128:21 pm -
2 stops27h 26m
Tue 11/176:42 pm -
1 stop16h 57m
Deal found 10/23![Frontier logo]()
$255
This United Airlines deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/123:49 pm -
Nonstop2h 52m
Sun 11/158:40 am -
Nonstop3h 01m
Deal found 10/22![United Airlines logo]()
$256
This Kiwi.com deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/1312:24 pm -
1 stop6h 21m
Sun 11/156:00 am -
2 stops53h 25m
Deal found 10/23![Frontier logo]()
$253
This Mytrip deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/148:21 pm -
1 stop28h 00m
Mon 11/166:00 am -
2 stops29h 25m
Deal found 10/23![Frontier logo]()
$255
This Southwest deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/156:40 am -
Nonstop2h 30m
Tue 11/178:55 pm -
Nonstop2h 50m
Deal found 10/22![Southwest logo]()
$253
This Southwest deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/156:40 am -
Nonstop2h 30m
Mon 11/168:55 pm -
Nonstop2h 50m
Deal found 10/23![Southwest logo]()
$254
This Mytrip deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/219:32 pm -
1 stop7h 38m
Mon 11/236:40 am -
2 stops15h 24m
Deal found 10/24![Frontier logo]()
$252
This Frontier deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/264:40 pm -
1 stop8h 02m
Fri 11/276:40 am -
1 stop12h 29m
Deal found 10/22![Frontier logo]()
$257
One-way flights from Austin to IllinoisSearch for one-way flight options from Austin to Illinois. Find affordable one-way fares based on user searches. Data last updated October 25, 2026.
Search for one-way flight options from Austin to Illinois. Find affordable one-way fares based on user searches. Data last updated October 25, 2026.
This Cheapflightsfares deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/229:17 pm -
1 stop22h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/21![Frontier logo]()
$138
This Super.com deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/312:24 pm -
1 stop6h 06m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/21![Frontier logo]()
$138
This Mytrip deal was found by Cheapflights users on 10/20. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/188:21 pm -
2 stops21h 26m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/20![Frontier logo]()
$139
This Kiwi.com deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/1311:33 am -
2 stops25h 18m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/22![Frontier logo]()
$139
This Kiwi.com deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/17:34 pm -
2 stops13h 52m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/23![Frontier logo]()
$140
This Frontier deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/259:32 pm -
1 stop7h 38m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/24![Frontier logo]()
$140
This Frontier deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/412:24 pm -
1 stop6h 06m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/22![Frontier logo]()
$141
This CheapOair deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/312:24 pm -
1 stop5h 23m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/22![Frontier logo]()
$142
This Cheapflightsfares deal was found by Cheapflights users on 10/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/2210:59 pm -
1 stop30h 11m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/21![Frontier logo]()
$142
This Southwest deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/275:30 am -
1 stop4h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/22![Southwest logo]()
$144
This Kiwi.com deal was found by Cheapflights users on 10/20. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/238:28 pm -
2 stops15h 22m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/20![Frontier logo]()
$145
This Expedia deal was found by Cheapflights users on 10/20. 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 10/2712:20 pm -
1 stop11h 27m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/20![Frontier logo]()
$146
Find flight deals from Austin to Illinois
Keep the following information in mind while searching for Austin to Illinois flight deals. Data was last updated October 25, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $252 (Southwest) |
One-way from | $138 (Cheapflightsfares) |
Popular in | September |
Cheapest in | January |
Average price | $380 |
Good round-trip deal | $346 or less |
Good one-way deal | $211 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Austin 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 October 25, 2026.
Use the filters below to find and compare flights from Austin to Illinois that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
AustinChicago
AUS Austin Bergstrom - ORD Chicago O'Hare Intl
AUSORD
Austin Bergstrom
Thu 11/12
12:14 pm-8:17 pm
1 stop8h 03m
Chicago O'Hare Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$138
AustinChicago
AUS Austin Bergstrom - MDW Chicago Midway
AUSMDW
Austin Bergstrom
Mon 11/30
8:04 pm-9:26 am
2 stops37h 22m
Chicago Midway
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$145
Quickest round-trip
AustinChicago
AUS Austin Bergstrom - MDW Chicago Midway
AUSMDW
Austin Bergstrom
Sun 12/6
6:40 am-9:10 am
Nonstop2h 30m
Chicago Midway
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$149
AustinChicago
AUS Austin Bergstrom - ORD Chicago O'Hare Intl
AUSORD
Austin Bergstrom
Thu 11/12
9:38 am-12:29 pm
Nonstop2h 51m
Chicago O'Hare Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$153
AustinChicago
AUS Austin Bergstrom - ORD Chicago O'Hare Intl
AUSORD
Austin Bergstrom
Thu 11/19
6:00 am-9:03 am
Nonstop3h 03m
Chicago O'Hare Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$156
AustinChicago
AUS Austin Bergstrom - MDW Chicago Midway
AUSMDW
Austin Bergstrom
Thu 11/26
5:00 pm-10:54 pm
1 stop5h 54m
Chicago Midway
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$184
AustinChicago
AUS Austin Bergstrom - ORD Chicago O'Hare Intl
AUSORD
Austin Bergstrom
Fri 11/27
7:00 am-9:45 am
Nonstop2h 45m
Chicago O'Hare Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$186
AustinChicago
AUS Austin Bergstrom - MDW Chicago Midway
AUSMDW
Austin Bergstrom
Wed 12/23
6:25 am-9:00 am
Nonstop2h 35m
Chicago Midway
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$190
AustinChicago
AUS Austin Bergstrom - MDW Chicago Midway
AUSMDW
Austin Bergstrom
Mon 12/28
6:25 am-9:00 am
Nonstop2h 35m
Chicago Midway
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$191
AustinChicago
AUS Austin Bergstrom - ORD Chicago O'Hare Intl
AUSORD
Austin Bergstrom
Sun 12/27
6:35 am-9:31 am
Nonstop2h 56m
Chicago O'Hare Intl
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$191
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Austin to Illinois
Have a flexible travel schedule? Discover the best time to fly to Illinois from Austin with our price prediction graph.
AUS-MDW
AUS-ORD
AUS-BMI
AUS-PIA
AUS-MLI
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 Austin to Illinois
AUS-USIL
AUS-MDW
AUS-ORD
AUS-BMI
AUS-PIA
What is the cheapest month to book a flight from Austin to Illinois?
Currently, January is the cheapest month in which you can book a flight from Austin to Illinois (average of $223). Flying from Austin to Illinois in October is currently the most expensive (average of $387). 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.
What is the cheapest time of day to fly from AUS to IL?
Find hourly flight availability from Austin to Illinois. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 25, 2026.
Unlike at noon, when flights are generally more expensive, you can save up to 44% on flights from Austin to Illinois by exploring options for tickets in the evening.
Weekly flight availability from Austin to Illinois
Explore weekly flight availability from Austin to Illinois. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated October 25, 2026.
The most flights from AUS to USIL are scheduled on a Friday (37 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (6 on average).
How much does it cost to fly round-trip from Austin to Illinois?
Airfare is below average for this route at the moment.
Austin to Illinois flights typically cost between $273 and $485 in November.The cheapest round-trip price found within the last 5 days was $252 on Frontier (Nov 21-Nov 23).
How far ahead should I book a flight from Austin to Illinois?
To ensure you get the cheapest price possible for a flight from Austin to Illinois, you should look to book at least 29 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
What is the cheapest day to fly from Austin to Illinois?
Use this chart to determine the cheapest time to fly round-trip from Austin to Illinois. Price data was last updated on October 24, 2026.
Travelers seeking maximum savings on their Austin to Illinois flight should consider departing on Tuesday evenings when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
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 October 25, 2026.
Get a feel of what it's like to fly with Southwest,United Airlines, andJetBlue from Austin to Illinois by reading reviews from past customers. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Overall
7.9
Crew
8.6
Food
7.0
Boarding
8.1
Comfort
8.0
Entertainment
7.4
Reviews
1 / 20
6.0
GoodReza,Jun 2026
TPA - MDW
Overall
7.9
Crew
8.6
Food
7.0
Boarding
8.1
Comfort
8.0
Entertainment
7.4
Reviews
1 / 20
6.0
GoodReza,Jun 2026
TPA - MDW
Overall
7.9
Crew
8.6
Food
7.0
Boarding
8.1
Comfort
8.0
Entertainment
7.4
Reviews
1 / 20
6.0
GoodReza,Jun 2026
TPA - MDW
Overall
7.9
Crew
8.6
Food
7.0
Boarding
8.1
Comfort
8.0
Entertainment
7.4
Reviews
1 / 20
6.0
GoodReza,Jun 2026
TPA - MDW
Overall
7.9
Crew
8.6
Food
7.0
Boarding
8.1
Comfort
8.0
Entertainment
7.4
Reviews
1 / 20
6.0
GoodReza,Jun 2026
TPA - MDW
Overall
7.9
Crew
8.6
Food
7.0
Boarding
8.1
Comfort
8.0
Entertainment
7.4
Reviews
1 / 20
6.0
GoodReza,Jun 2026
TPA - MDW
Related info for your journey
Find useful and relevant information for your journey from Austin to Illinois. 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 Austin to Illinois
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Complete your trip
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Search flights from Austin to Illinois by cabin class
Find flights from Austin to Illinois, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Austin and Illinois flights
Browse other Austin and Illinois flight options. Last updated on October 25, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Austin to Illinois flights
Consider these flights traveling from Austin to Illinois.
Top 6 airlines flying from Austin to Illinois
Discover the top 6 airlines that operate flights from Austin 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 October 25, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$60 | Average$235 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$162 | Average$403 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$194 | Average$363 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$195 | Average$466 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$196 | Average$269 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$215 | Average$373 | FlexibilityNo cancel fee | On-time69% |