$92+ Cheap flights from Illinois to California
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 9/30. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — LAX
Oct 15 — Oct 221
Round-trip
1 adult, Economy
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Find cheap flights from Illinois to California 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 Illinois to CaliforniaExplore the most affordable flight options available from Illinois to California. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 15, 2026.
Explore the most affordable flight options available from Illinois to California. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 15, 2026.
This Cheapflightsfares deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/212:51 pm -
Nonstop4h 21m
Sat 12/56:00 am -
Nonstop3h 46m
Deal found 9/11![Frontier logo]()
$132
This Priceline deal was found by Cheapflights users on 9/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/712:51 pm -
Nonstop4h 21m
Wed 12/96:00 am -
Nonstop3h 46m
Deal found 9/12![Frontier logo]()
$148
This Priceline deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/512:51 pm -
Nonstop4h 21m
Sat 12/126:00 am -
Nonstop3h 46m
Deal found 9/14![Frontier logo]()
$154
This Kiwi.com deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” 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 11/116:30 am -
1 stop19h 21m
Sat 11/1411:52 am -
1 stop10h 29m
Deal found 9/10![Frontier logo]()
$160
This deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/206:30 am -
1 stop5h 59m
Sun 10/258:35 pm -
1 stop6h 41m
Deal found 9/13![Frontier logo]()
$163
This Kiwi.com deal was found by Cheapflights users on 9/12. Clicking the “Pick Dates” 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 10/206:30 am -
1 stop19h 20m
Tue 10/276:25 am -
1 stop15h 56m
Deal found 9/12![Frontier logo]()
$180
This Kiwi.com deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” 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 11/76:30 am -
1 stop19h 53m
Wed 11/1111:42 am -
1 stop10h 39m
Deal found 9/11![Frontier logo]()
$191
This Super.com deal was found by Cheapflights users on 9/12. Clicking the “Pick Dates” 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.
Fri 10/98:01 pm -
Nonstop4h 50m
Sun 10/1112:21 am -
Nonstop4h 13m
Deal found 9/12![Frontier logo]()
$194
This Priceline deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/246:30 am -
1 stop5h 59m
Sat 10/3111:52 am -
1 stop10h 29m
Deal found 9/10![Frontier logo]()
$195
This deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/166:30 am -
1 stop6h 15m
Sat 10/1712:21 am -
Nonstop4h 13m
Deal found 9/14![Frontier logo]()
$196
This Orbitz deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/158:01 pm -
Nonstop4h 50m
Fri 10/1612:21 am -
Nonstop4h 13m
Deal found 9/10![Frontier logo]()
$197
This Expedia deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” 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.
Thu 11/55:15 pm -
1 stop20h 01m
Wed 11/116:25 am -
1 stop15h 56m
Deal found 9/10![Frontier logo]()
$198
Best flights from Illinois to CaliforniaDiscover carefully curated flight deals from Illinois to California that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 15, 2026.
Discover carefully curated flight deals from Illinois to California that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 15, 2026.
This United Airlines deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” 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 10/265:59 am -
Nonstop4h 36m
Mon 11/27:00 am -
Nonstop4h 15m
Deal found 9/11![United Airlines logo]()
$217
This Southwest deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” 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 10/293:55 pm -
Nonstop4h 30m
Sun 11/15:30 am -
1 stop6h 40m
Deal found 9/13![Southwest logo]()
$227
This Delta deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” 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 11/116:28 pm -
Nonstop4h 37m
Sat 11/142:00 pm -
1 stop7h 59m
Deal found 9/13![Delta logo]()
$227
This Alaska Airlines deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” 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.
Sat 10/177:20 am -
Nonstop4h 36m
Wed 10/217:00 am -
Nonstop4h 25m
Deal found 9/11![Alaska Airlines logo]()
$257
This Orbitz deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/246:40 am -
1 stop20h 03m
Mon 11/306:30 pm -
1 stop15h 16m
Deal found 9/14![Frontier logo]()
$328
This American Airlines deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” 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 11/37:00 pm -
Nonstop4h 56m
Sun 11/1511:39 pm -
Nonstop4h 20m
Deal found 9/14![American Airlines logo]()
$334
This Expedia deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/291:03 pm -
1 stop9h 06m
Thu 10/110:45 am -
1 stop12h 00m
Deal found 9/14![Multiple Airlines logo]()
$413
This Delta deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” 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 10/297:29 am -
Nonstop4h 41m
Tue 11/35:35 am -
1 stop8h 57m
Deal found 9/10![Delta logo]()
$227
This Southwest deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” 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 10/156:00 pm -
1 stop7h 00m
Mon 10/1910:15 pm -
1 stop5h 30m
Deal found 9/10![Southwest logo]()
$237
This Delta deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” 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 10/287:14 pm -
Nonstop4h 46m
Sat 10/311:05 pm -
1 stop6h 22m
Deal found 9/14![Delta logo]()
$227
This Southwest deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” 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 10/303:45 pm -
1 stop6h 30m
Fri 11/68:55 pm -
1 stop6h 50m
Deal found 9/11![Southwest logo]()
$237
This Delta deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” 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 11/146:15 pm -
1 stop8h 37m
Sun 11/155:59 pm -
Nonstop3h 56m
Deal found 9/13![Delta logo]()
$227
This United Airlines deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” 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 10/163:00 pm -
1 stop7h 08m
Tue 10/2010:30 pm -
Nonstop4h 03m
Deal found 9/14![United Airlines logo]()
$276
This Alaska Airlines deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” 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 10/207:00 am -
1 stop8h 25m
Sat 10/247:02 am -
1 stop9h 18m
Deal found 9/13![Alaska Airlines logo]()
$291
This Southwest deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” 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 11/410:10 am -
1 stop5h 15m
Mon 11/96:45 pm -
Nonstop3h 25m
Deal found 9/14![Southwest logo]()
$242
This Delta deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” 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 10/1712:00 pm -
1 stop10h 40m
Sat 10/2412:00 pm -
1 stop9h 54m
Deal found 9/14![Delta logo]()
$237
This United Airlines deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” 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 11/68:02 pm -
Nonstop4h 38m
Mon 11/910:30 pm -
Nonstop4h 04m
Deal found 9/10![United Airlines logo]()
$288
This Alaska Airlines deal was found by Cheapflights users on 9/12. Clicking the “Pick Dates” 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 12/29:20 am -
Nonstop4h 25m
Tue 12/1512:45 pm -
Nonstop4h 10m
Deal found 9/12![Alaska Airlines logo]()
$297
This Southwest deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” 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 11/59:30 pm -
Nonstop4h 25m
Sun 11/811:55 pm -
Nonstop4h 00m
Deal found 9/10![Southwest logo]()
$257
This Alaska Airlines deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” 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 10/217:00 am -
1 stop9h 38m
Mon 10/265:46 pm -
Nonstop4h 13m
Deal found 9/10![Alaska Airlines logo]()
$297
This United Airlines deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” 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 11/47:20 am -
Nonstop4h 08m
Wed 11/116:45 am -
Nonstop3h 44m
Deal found 9/10![United Airlines logo]()
$311
This Kiwi.com deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” 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 10/86:30 am -
1 stop19h 45m
Sun 10/1110:19 pm -
2 stops30h 15m
Deal found 9/14![Frontier logo]()
$384
This KAYAK deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” 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 9/235:00 am -
1 stop6h 29m
Fri 9/2512:37 pm -
1 stop9h 37m
Deal found 9/10![American Airlines logo]()
$397
This Southwest deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” 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 10/202:50 pm -
1 stop5h 50m
Fri 10/231:30 pm -
1 stop5h 45m
Deal found 9/14![Southwest logo]()
$273
This Delta deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” 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 10/610:59 am -
1 stop10h 34m
Wed 10/76:00 am -
1 stop8h 47m
Deal found 9/13![Delta logo]()
$277
This United Airlines deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” 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 11/117:20 am -
Nonstop4h 08m
Sat 11/144:25 pm -
1 stop5h 34m
Deal found 9/10![United Airlines logo]()
$321
This Alaska Airlines deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” 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.
Sun 10/256:00 am -
1 stop10h 55m
Thu 10/293:51 pm -
1 stop11h 49m
Deal found 9/14![Alaska Airlines logo]()
$321
This Delta deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/21:19 pm -
1 stop8h 42m
Mon 10/510:45 pm -
1 stop8h 47m
Deal found 9/10![Delta logo]()
$277
This KAYAK deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/236:40 pm -
Nonstop4h 17m
Wed 10/281:48 pm -
Nonstop4h 11m
Deal found 9/9![American Airlines logo]()
$412
This United Airlines deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” 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 10/116:22 pm -
Nonstop4h 08m
Wed 10/2111:43 pm -
Nonstop3h 32m
Deal found 9/11![United Airlines logo]()
$326
Last-minute flights from Illinois to CaliforniaDiscover last-minute flight deals from Illinois to California. Data last updated September 15, 2026 and is based on user searches.
Discover last-minute flight deals from Illinois to California. Data last updated September 15, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” 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 10/36:30 am -
2 stops18h 34m
Tue 10/1311:40 am -
1 stop10h 44m
Deal found 9/10![Frontier logo]()
$200
This Super.com deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” 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.
Wed 10/76:30 am -
1 stop6h 00m
Mon 10/198:35 pm -
1 stop6h 41m
Deal found 9/9![Frontier logo]()
$196
This Frontier deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” 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 10/76:30 am -
1 stop6h 00m
Tue 10/1311:52 am -
1 stop10h 32m
Deal found 9/10![Frontier logo]()
$200
This Super.com deal was found by Cheapflights users on 9/12. Clicking the “Pick Dates” 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.
Fri 10/98:01 pm -
Nonstop4h 50m
Sun 10/1112:21 am -
Nonstop4h 13m
Deal found 9/12![Frontier logo]()
$194
This Kiwi.com deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/98:01 pm -
Nonstop4h 50m
Wed 10/2112:21 am -
Nonstop4h 13m
Deal found 9/10![Frontier logo]()
$199
This Orbitz deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/158:01 pm -
Nonstop4h 50m
Fri 10/1612:21 am -
Nonstop4h 13m
Deal found 9/10![Frontier logo]()
$197
This deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/166:30 am -
1 stop6h 15m
Sat 10/1712:21 am -
Nonstop4h 13m
Deal found 9/14![Frontier logo]()
$196
This Priceline deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/178:01 pm -
Nonstop4h 50m
Thu 10/226:02 am -
1 stop10h 18m
Deal found 9/11![Multiple Airlines logo]()
$198
This deal was found by Cheapflights users on 9/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/206:30 am -
1 stop5h 59m
Sun 10/258:35 pm -
1 stop6h 41m
Deal found 9/13![Frontier logo]()
$163
This Kiwi.com deal was found by Cheapflights users on 9/12. Clicking the “Pick Dates” 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 10/206:30 am -
1 stop19h 20m
Tue 10/276:25 am -
1 stop15h 56m
Deal found 9/12![Frontier logo]()
$180
This Booking.com deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” 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 10/216:30 am -
1 stop5h 59m
Thu 10/2211:52 am -
1 stop10h 32m
Deal found 9/11![Frontier logo]()
$201
This Priceline deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/246:30 am -
1 stop5h 59m
Sat 10/3111:52 am -
1 stop10h 29m
Deal found 9/10![Frontier logo]()
$195
One-way flights from Illinois to CaliforniaSearch for one-way flight options from Illinois to California. Find affordable one-way fares based on user searches. Data last updated September 15, 2026.
Search for one-way flight options from Illinois to California. Find affordable one-way fares based on user searches. Data last updated September 15, 2026.
This Super.com deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” 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.
Wed 9/306:30 am -
1 stop6h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![Frontier logo]()
$92
This Super.com deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” 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.
Wed 10/76:30 am -
1 stop6h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![Frontier logo]()
$96
This Super.com deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” 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 10/66:30 am -
1 stop6h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/11![Frontier logo]()
$97
This Booking.com deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” 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.
Sat 10/36:30 am -
1 stop6h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![Frontier logo]()
$98
This Expedia deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” 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.
Thu 10/228:01 pm -
Nonstop4h 50m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![Frontier logo]()
$101
This Super.com deal was found by Cheapflights users on 9/9. Clicking the “Pick Dates” 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.
Sat 10/246:30 am -
1 stop19h 59m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![Frontier logo]()
$102
This Super.com deal was found by Cheapflights users on 9/11. Clicking the “Pick Dates” 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.
Sat 11/76:30 am -
1 stop19h 21m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/11![Frontier logo]()
$103
This Super.com deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” 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.
Wed 9/306:30 am -
1 stop9h 44m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![Frontier logo]()
$103
This Super.com deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” 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.
Thu 10/12:46 pm -
1 stop29h 02m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![Frontier logo]()
$104
This Priceline deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/69:00 am -
1 stop11h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/14![Alaska Airlines logo]()
$105
This Super.com deal was found by Cheapflights users on 9/14. Clicking the “Pick Dates” 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.
Wed 10/71:21 pm -
1 stop12h 50m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/14![Frontier logo]()
$105
This Frontier deal was found by Cheapflights users on 9/10. Clicking the “Pick Dates” 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 10/178:30 am -
1 stop10h 18m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![Frontier logo]()
$106
Find flight deals from Illinois to California
Keep the following information in mind while searching for Illinois to California flight deals. Data was last updated September 15, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $132 (Cheapflightsfares) |
One-way from | $92 (Super.com) |
Popular in | June |
Cheapest in | October |
Average price | $270 |
Good round-trip deal | $219 or less |
Good one-way deal | $119 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Illinois to California 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 September 15, 2026.
Use the filters below to find and compare flights from Illinois to California that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
ChicagoLos Angeles
MDW Chicago Midway - LAX Los Angeles
MDWLAX
Chicago Midway
Sat 10/24
7:45 pm-10:15 pm
Nonstop4h 30m
Los Angeles
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$109
ChicagoLos Angeles
ORD Chicago O'Hare Intl - LAX Los Angeles
ORDLAX
Chicago O'Hare Intl
Sun 11/15
1:00 pm-3:29 pm
Nonstop4h 29m
Los Angeles
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$109
ChicagoLos Angeles
ORD Chicago O'Hare Intl - LAX Los Angeles
ORDLAX
Chicago O'Hare Intl
Tue 10/27
2:42 pm-11:56 pm
1 stop11h 14m
Los Angeles
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$109
ChicagoLos Angeles
ORD Chicago O'Hare Intl - LAX Los Angeles
ORDLAX
Chicago O'Hare Intl
Thu 11/12
7:45 am-10:23 am
Nonstop4h 38m
Los Angeles
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$109
Quickest round-trip
ChicagoLos Angeles
MDW Chicago Midway - LAX Los Angeles
MDWLAX
Chicago Midway
Wed 11/18
3:45 pm-6:10 pm
Nonstop4h 25m
Los Angeles
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$109
ChicagoLos Angeles
ORD Chicago O'Hare Intl - LAX Los Angeles
ORDLAX
Chicago O'Hare Intl
Fri 11/6
2:42 pm-11:53 pm
1 stop11h 11m
Los Angeles
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$109
ChicagoLos Angeles
MDW Chicago Midway - LAX Los Angeles
MDWLAX
Chicago Midway
Fri 11/13
12:20 pm-4:25 pm
1 stop6h 05m
Los Angeles
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$114
ChicagoLos Angeles
MDW Chicago Midway - LAX Los Angeles
MDWLAX
Chicago Midway
Fri 11/13
12:30 pm-4:49 pm
1 stop6h 19m
Los Angeles
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$119
ChicagoLos Angeles
MDW Chicago Midway - LAX Los Angeles
MDWLAX
Chicago Midway
Tue 11/10
1:31 pm-6:50 pm
1 stop7h 19m
Los Angeles
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$119
ChicagoLos Angeles
MDW Chicago Midway - LAX Los Angeles
MDWLAX
Chicago Midway
Wed 10/28
5:25 pm-10:20 pm
1 stop6h 55m
Los Angeles
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$119
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Illinois to California
Have a flexible travel schedule? Discover the best time to fly to California from Illinois with our price prediction graph.
ORD-LAS
ORD-ONT
ORD-LAX
MDW-LAX
ORD-SAN
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 Illinois to California
USIL-USCA
ORD-LAS
ORD-ONT
ORD-LAX
MDW-LAX
What is the cheapest month to book a flight from Illinois to California?
Currently, October is the cheapest month in which you can book a flight from Illinois to California (average of $332). Flying from Illinois to California in June is currently the most expensive (average of $432). 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 IL to CA?
Find hourly flight availability from Illinois to California. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 15, 2026.
A simple way to save on the total cost of your ticket is to fly from Illinois to California in the morning. If you’re flexible enough to do this you can expect to save up to 13% on your trip compared to booking a flight at noon.
Weekly flight availability from Illinois to California
Explore weekly flight availability from Illinois to California. 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 September 15, 2026.
The most flights from USIL to USCA are scheduled on a Sunday (129 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (111 on average).
How much does it cost to fly round-trip from Illinois to California?
Airfare is below average for this route at the moment.
Illinois to California flights typically cost between $218 and $381 in November.The cheapest round-trip price found within the last 5 days was $191 on Frontier (Nov 7-Nov 11).
How far ahead should I book a flight from Illinois to California?
The price you pay for your flight from Illinois to California may vary depending on when you book. For the best chance of a lower fare, look to book 49 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
What is the cheapest day to fly from Illinois to California?
Use this chart to determine the cheapest time to fly round-trip from Illinois to California. Price data was last updated on September 12, 2026.
Travelers seeking maximum savings on their Illinois to California flight should consider departing on Monday evenings when fares are most often at their lowest. Monday mornings flights should be avoided if possible as fares are typically the most expensive at this time.
Reviews of airlines servicing California
Get insights into the airlines that provide service to California. 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 California. Reviews last updated September 15, 2026.
See what other customers who have flown with Southwest,Alaska Airlines, andUnited Airlines from Illinois to California have to say. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Food
7.0
Crew
8.6
Entertainment
7.5
Overall
8.0
Boarding
8.1
Comfort
8.0
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Food
7.0
Crew
8.6
Entertainment
7.5
Overall
8.0
Boarding
8.1
Comfort
8.0
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Food
7.0
Crew
8.6
Entertainment
7.5
Overall
8.0
Boarding
8.1
Comfort
8.0
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Food
7.0
Crew
8.6
Entertainment
7.5
Overall
8.0
Boarding
8.1
Comfort
8.0
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Food
7.0
Crew
8.6
Entertainment
7.5
Overall
8.0
Boarding
8.1
Comfort
8.0
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Food
7.0
Crew
8.6
Entertainment
7.5
Overall
8.0
Boarding
8.1
Comfort
8.0
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Related info for your journey
Find useful and relevant information for your journey from Illinois to California. 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 Illinois to California
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to California by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Illinois to California by cabin class
Find flights from Illinois to California, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Illinois and California flights
Browse other Illinois and California flight options. Last updated on September 15, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Find a return flight route from California
Find the right flight back to Illinois after your stay in California
Illinois to California flights
Consider these flights traveling from Illinois to California.
Top 8 airlines flying from Illinois to California
Discover the top 8 airlines that operate flights from Illinois to California. 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 September 15, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$101 | Average$275 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$118 | Average$350 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$153 | Average$222 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$156 | Average$363 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$159 | Average$337 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$160 | Average$439 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$166 | Average$492 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$187 | Average$452 | FlexibilityNo cancel fee | On-time63% |