$111+ Cheap flights from Los Angeles (LAX) to Illinois
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 7/28. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — ORD
Jul 16 — Jul 231
Round-trip
1 adult, Economy
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Find cheap flights from Los Angeles to Illinois with Cheapflights
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Cheapest flights from Los Angeles to IllinoisExplore the most affordable flight options available from Los Angeles to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 16, 2026.
Explore the most affordable flight options available from Los Angeles to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 16, 2026.
This Delta deal was found by Cheapflights users on 6/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/97:45 am
LAX
- ORD
Nonstop4h 15m
Delta
Mon 9/145:42 pm
ORD
- LAX
1 stop8h 10m
Delta
Deal found 6/11![Delta logo]()
$223
This Southwest deal was found by Cheapflights users on 6/11. 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.
Wed 8/128:15 am
LAX
- MDW
1 stop5h 10m
Southwest
Sat 8/222:05 pm
MDW
- LAX
1 stop5h 40m
Southwest
Deal found 6/11![Southwest logo]()
$224
This Kiwi.com deal was found by Cheapflights users on 6/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/146:30 am
LAX
- ORD
1 stop12h 22m
Frontier
Tue 7/289:57 pm
ORD
- LAX
1 stop12h 58m
Frontier
Deal found 6/15![Frontier logo]()
$224
This Kiwi.com deal was found by Cheapflights users on 6/13. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/510:00 am
LAX
- ORD
1 stop8h 52m
Frontier
Tue 8/119:13 pm
ORD
- LAX
Nonstop4h 44m
Frontier
Deal found 6/13![Frontier logo]()
$225
This Frontier deal was found by Cheapflights users on 6/11. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/411:59 pm
LAX
- ORD
Nonstop4h 18m
Frontier
Sun 8/99:13 pm
ORD
- LAX
Nonstop4h 44m
Frontier
Deal found 6/11![Frontier logo]()
$226
This Trip.com deal was found by Cheapflights users on 6/14. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/1911:59 pm
LAX
- ORD
Nonstop4h 20m
Frontier
Tue 8/259:07 pm
ORD
- LAX
Nonstop4h 36m
Frontier
Deal found 6/14![Frontier logo]()
$227
This Frontier deal was found by Cheapflights users on 6/11. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/2111:59 pm
LAX
- ORD
Nonstop4h 18m
Frontier
Fri 8/79:13 pm
ORD
- LAX
Nonstop4h 44m
Frontier
Deal found 6/11![Frontier logo]()
$228
This Southwest deal was found by Cheapflights users on 6/11. 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.
Thu 8/133:15 pm
LAX
- MDW
1 stop6h 00m
Southwest
Wed 8/261:55 pm
MDW
- LAX
1 stop7h 15m
Southwest
Deal found 6/11![Southwest logo]()
$229
This Delta deal was found by Cheapflights users on 6/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/275:46 pm
LAX
- ORD
Nonstop4h 02m
Delta
Sat 8/299:30 am
ORD
- LAX
Nonstop4h 22m
Delta
Deal found 6/11![Delta logo]()
$229
This Super.com deal was found by Cheapflights users on 6/11. 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 7/711:59 pm
LAX
- ORD
Nonstop4h 18m
Frontier
Fri 7/109:13 pm
ORD
- LAX
Nonstop4h 44m
Frontier
Deal found 6/11![Frontier logo]()
$230
This Super.com deal was found by Cheapflights users on 6/12. 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 7/1011:59 pm
LAX
- ORD
Nonstop4h 18m
Frontier
Fri 7/179:13 pm
ORD
- LAX
Nonstop4h 44m
Frontier
Deal found 6/12![Frontier logo]()
$231
This Southwest deal was found by Cheapflights users on 6/11. 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.
Wed 9/96:45 am
LAX
- MDW
2 stops7h 15m
Southwest
Tue 9/156:40 am
MDW
- LAX
2 stops7h 55m
Southwest
Deal found 6/11![Southwest logo]()
$232
Best flights from Los Angeles to IllinoisDiscover carefully curated flight deals from Los Angeles to Illinois that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 16, 2026.
Discover carefully curated flight deals from Los Angeles to Illinois that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 16, 2026.
This Delta deal was found by Cheapflights users on 6/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/287:35 am
LAX
- ORD
1 stop7h 39m
Delta
Mon 11/27:35 am
ORD
- LAX
Nonstop4h 40m
Delta
Deal found 6/11![Delta logo]()
$223
This United Airlines deal was found by Cheapflights users on 6/11. 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.
Fri 9/1111:30 pm
LAX
- ORD
Nonstop4h 12m
United Airlines
Thu 9/171:58 pm
ORD
- LAX
Nonstop4h 32m
United Airlines
Deal found 6/11![United Airlines logo]()
$249
This Kiwi.com deal was found by Cheapflights users on 6/11. 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.
Thu 8/61:56 pm
LAX
- RFD
1 stop28h 38m
Multiple Airlines
Fri 8/149:24 pm
RFD
- LAX
1 stop17h 37m
Multiple Airlines
Deal found 6/11![Multiple Airlines logo]()
$266
This Southwest deal was found by Cheapflights users on 6/13. 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.
Sat 7/188:30 pm
LAX
- MDW
1 stop6h 30m
Southwest
Wed 7/225:30 am
MDW
- LAX
Nonstop4h 15m
Southwest
Deal found 6/13![Southwest logo]()
$305
This American Airlines deal was found by Cheapflights users on 6/14. 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.
Wed 7/153:00 pm
LAX
- PIA
1 stop6h 40m
American Airlines
Wed 7/226:58 pm
PIA
- LAX
1 stop7h 54m
American Airlines
Deal found 6/14![American Airlines logo]()
$349
This Expedia deal was found by Cheapflights users on 6/10. 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 7/96:30 am
LAX
- STL
1 stop10h 53m
Frontier
Sun 7/128:08 pm
STL
- LAX
1 stop6h 03m
Frontier
Deal found 6/10![Frontier logo]()
$385
This Delta deal was found by Cheapflights users on 6/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/309:50 am
LAX
- ORD
1 stop6h 07m
Delta
Mon 11/21:35 pm
ORD
- LAX
1 stop8h 56m
Delta
Deal found 6/11![Delta logo]()
$269
This United Airlines deal was found by Cheapflights users on 6/13. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/2910:35 pm
LAX
- ORD
Nonstop4h 10m
United Airlines
Sat 10/310:30 am
ORD
- LAX
Nonstop4h 36m
United Airlines
Deal found 6/13![United Airlines logo]()
$295
This Kiwi.com deal was found by Cheapflights users on 6/13. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2010:19 pm
LAX
- RFD
1 stop12h 04m
Multiple Airlines
Sun 8/239:35 pm
RFD
- LAX
1 stop13h 50m
Multiple Airlines
Deal found 6/13![Multiple Airlines logo]()
$296
This Delta deal was found by Cheapflights users on 6/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/111:10 pm
LAX
- ORD
1 stop6h 10m
Delta
Tue 7/147:29 am
ORD
- LAX
Nonstop4h 31m
Delta
Deal found 6/11![Delta logo]()
$277
This United Airlines deal was found by Cheapflights users on 6/12. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/2912:40 pm
LAX
- ORD
Nonstop4h 20m
United Airlines
Tue 9/13:48 pm
ORD
- LAX
Nonstop4h 37m
United Airlines
Deal found 6/12![United Airlines logo]()
$295
This Kiwi.com deal was found by Cheapflights users on 6/14. 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.
Fri 7/311:56 pm
LAX
- RFD
1 stop20h 12m
Multiple Airlines
Fri 8/79:24 pm
RFD
- LAX
1 stop17h 37m
Multiple Airlines
Deal found 6/14![Multiple Airlines logo]()
$311
This American Airlines deal was found by Cheapflights users on 6/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/131:25 pm
LAX
- BMI
1 stop9h 10m
American Airlines
Mon 7/205:45 pm
BMI
- LAX
1 stop7h 28m
American Airlines
Deal found 6/15![American Airlines logo]()
$349
This Southwest deal was found by Cheapflights users on 6/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/166:20 pm
LAX
- MDW
Nonstop4h 00m
Southwest
Wed 7/225:30 am
MDW
- LAX
Nonstop4h 15m
Southwest
Deal found 6/15![Southwest logo]()
$356
This Delta deal was found by Cheapflights users on 6/14. 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 9/59:45 am
LAX
- ORD
Nonstop4h 05m
Delta
Sat 9/129:30 am
ORD
- LAX
Nonstop4h 25m
Delta
Deal found 6/14![Delta logo]()
$295
This Kiwi.com deal was found by Cheapflights users on 6/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/301:56 pm
LAX
- RFD
1 stop28h 27m
Multiple Airlines
Mon 8/39:13 pm
RFD
- LAX
1 stop17h 48m
Multiple Airlines
Deal found 6/15![Multiple Airlines logo]()
$318
This Southwest deal was found by Cheapflights users on 6/12. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/256:00 am
LAX
- MDW
Nonstop4h 05m
Southwest
Wed 7/299:15 pm
MDW
- LAX
Nonstop4h 30m
Southwest
Deal found 6/12![Southwest logo]()
$356
This Delta deal was found by Cheapflights users on 6/13. 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 8/85:46 pm
LAX
- ORD
Nonstop4h 02m
Delta
Sat 8/159:30 am
ORD
- LAX
Nonstop4h 22m
Delta
Deal found 6/13![Delta logo]()
$295
This Kiwi.com deal was found by Cheapflights users on 6/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2710:19 pm
LAX
- RFD
1 stop11h 04m
Multiple Airlines
Sun 8/309:35 pm
RFD
- LAX
1 stop13h 50m
Multiple Airlines
Deal found 6/15![Multiple Airlines logo]()
$329
This Southwest deal was found by Cheapflights users on 6/13. 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.
Fri 7/176:20 pm
LAX
- MDW
Nonstop4h 00m
Southwest
Wed 7/227:00 am
MDW
- LAX
1 stop6h 15m
Southwest
Deal found 6/13![Southwest logo]()
$366
This Delta deal was found by Cheapflights users on 6/12. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/811:50 pm
LAX
- MDW
1 stop8h 00m
Delta
Sat 9/126:45 pm
MDW
- LAX
1 stop6h 36m
Delta
Deal found 6/12![Delta logo]()
$315
This American Airlines deal was found by Cheapflights users on 6/11. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/116:00 am
LAX
- CMI
1 stop6h 16m
American Airlines
Sat 7/186:34 pm
CMI
- LAX
1 stop6h 39m
American Airlines
Deal found 6/11![American Airlines logo]()
$440
This Southwest deal was found by Cheapflights users on 6/12. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/66:00 am
LAX
- MDW
Nonstop4h 00m
Southwest
Mon 11/94:45 pm
MDW
- LAX
Nonstop4h 30m
Southwest
Deal found 6/12![Southwest logo]()
$371
This Delta deal was found by Cheapflights users on 6/12. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/2412:30 am
LAX
- ORD
1 stop6h 05m
Delta
Tue 7/286:55 am
ORD
- LAX
1 stop10h 28m
Delta
Deal found 6/12![Delta logo]()
$315
This Kiwi.com deal was found by Cheapflights users on 6/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/107:45 pm
LAX
- RFD
1 stop20h 26m
Multiple Airlines
Sun 9/139:29 pm
RFD
- LAX
1 stop12h 51m
Multiple Airlines
Deal found 6/15![Multiple Airlines logo]()
$354
This United Airlines deal was found by Cheapflights users on 6/11. 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.
Wed 8/268:15 am
LAX
- PAH
1 stop8h 55m
United Airlines
Sat 8/295:02 am
PAH
- LAX
1 stop9h 58m
United Airlines
Deal found 6/11![United Airlines logo]()
$438
This Southwest deal was found by Cheapflights users on 6/11. 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 10/1611:55 pm
LAX
- MDW
Nonstop4h 05m
Southwest
Sun 10/1810:10 pm
MDW
- LAX
Nonstop4h 25m
Southwest
Deal found 6/11![Southwest logo]()
$371
This Delta deal was found by Cheapflights users on 6/13. 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 9/191:10 pm
LAX
- ORD
1 stop6h 37m
Delta
Wed 9/238:05 am
ORD
- LAX
1 stop8h 00m
Delta
Deal found 6/13![Delta logo]()
$315
This American Airlines deal was found by Cheapflights users on 6/12. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/171:10 am
LAX
- EVV
1 stop8h 30m
American Airlines
Sun 7/266:55 pm
EVV
- LAX
1 stop7h 57m
American Airlines
Deal found 6/12![American Airlines logo]()
$469
This United Airlines deal was found by Cheapflights users on 6/10. 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.
Tue 8/185:30 am
LAX
- PIA
1 stop7h 30m
United Airlines
Sat 8/228:29 am
PIA
- LAX
1 stop9h 03m
United Airlines
Deal found 6/10![United Airlines logo]()
$449
Last-minute flights from Los Angeles to IllinoisDiscover last-minute flight deals from Los Angeles to Illinois. Data last updated June 16, 2026 and is based on user searches.
Discover last-minute flight deals from Los Angeles to Illinois. Data last updated June 16, 2026 and is based on user searches.
This Frontier deal was found by Cheapflights users on 6/11. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/311:59 pm
LAX
- ORD
Nonstop4h 20m
Frontier
Thu 7/169:13 pm
ORD
- LAX
Nonstop4h 44m
Frontier
Deal found 6/11![Frontier logo]()
$228
This Super.com deal was found by Cheapflights users on 6/12. 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 7/311:59 pm
LAX
- ORD
Nonstop4h 20m
Frontier
Thu 7/99:13 pm
ORD
- LAX
Nonstop4h 44m
Frontier
Deal found 6/12![Frontier logo]()
$232
This Super.com deal was found by Cheapflights users on 6/11. 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 7/711:59 pm
LAX
- ORD
Nonstop4h 18m
Frontier
Tue 7/149:13 pm
ORD
- LAX
Nonstop4h 44m
Frontier
Deal found 6/11![Frontier logo]()
$233
This Frontier deal was found by Cheapflights users on 6/12. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/711:59 pm
LAX
- ORD
Nonstop4h 18m
Frontier
Fri 7/179:13 pm
ORD
- LAX
Nonstop4h 44m
Frontier
Deal found 6/12![Frontier logo]()
$236
This Super.com deal was found by Cheapflights users on 6/12. 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 7/1011:59 pm
LAX
- ORD
Nonstop4h 18m
Frontier
Fri 7/179:13 pm
ORD
- LAX
Nonstop4h 44m
Frontier
Deal found 6/12![Frontier logo]()
$231
This Kiwi.com deal was found by Cheapflights users on 6/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/149:40 am
LAX
- ORD
1 stop9h 12m
Frontier
Tue 7/219:57 pm
ORD
- LAX
1 stop12h 58m
Frontier
Deal found 6/15![Frontier logo]()
$224
This Southwest deal was found by Cheapflights users on 6/11. 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.
Tue 7/145:00 pm
LAX
- MDW
Nonstop4h 00m
Southwest
Tue 7/215:30 am
MDW
- LAX
Nonstop4h 15m
Southwest
Deal found 6/11![Southwest logo]()
$239
This Kiwi.com deal was found by Cheapflights users on 6/12. 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.
Sat 7/1811:59 pm
LAX
- ORD
Nonstop4h 18m
Frontier
Thu 7/309:13 pm
ORD
- LAX
Nonstop4h 44m
Frontier
Deal found 6/12![Frontier logo]()
$229
This Delta deal was found by Cheapflights users on 6/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/215:15 pm
LAX
- ORD
Nonstop4h 03m
Delta
Thu 8/67:29 am
ORD
- LAX
Nonstop4h 26m
Delta
Deal found 6/11![Delta logo]()
$234
This Kiwi.com deal was found by Cheapflights users on 6/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/2511:59 pm
LAX
- ORD
Nonstop4h 18m
Frontier
Tue 7/289:57 pm
ORD
- LAX
1 stop12h 58m
Frontier
Deal found 6/15![Frontier logo]()
$223
This Frontier deal was found by Cheapflights users on 6/10. 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.
Mon 7/2711:59 pm
LAX
- ORD
Nonstop4h 18m
Frontier
Wed 8/59:57 pm
ORD
- LAX
1 stop12h 33m
Frontier
Deal found 6/10![Frontier logo]()
$230
This Frontier deal was found by Cheapflights users on 6/11. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/2811:59 pm
LAX
- ORD
Nonstop4h 18m
Frontier
Fri 8/149:13 pm
ORD
- LAX
Nonstop4h 44m
Frontier
Deal found 6/11![Frontier logo]()
$235
One-way flights from Los Angeles to IllinoisSearch for one-way flight options from Los Angeles to Illinois. Find affordable one-way fares based on user searches. Data last updated June 16, 2026.
Search for one-way flight options from Los Angeles to Illinois. Find affordable one-way fares based on user searches. Data last updated June 16, 2026.
This Kiwi.com deal was found by Cheapflights users on 6/14. 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.
Tue 7/281:56 pm
LAX
- RFD
1 stop28h 03m
Multiple Airlines
Deal found 6/14![Multiple Airlines logo]()
$111
This Kiwi.com deal was found by Cheapflights users on 6/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/311:59 pm
LAX
- ORD
Nonstop4h 20m
Frontier
Deal found 6/15![Frontier logo]()
$111
This Super.com deal was found by Cheapflights users on 6/10. 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.
Tue 7/711:59 pm
LAX
- ORD
Nonstop4h 18m
Frontier
Deal found 6/10![Frontier logo]()
$112
This Kiwi.com deal was found by Cheapflights users on 6/10. 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.
Tue 8/41:56 pm
LAX
- RFD
1 stop28h 12m
Multiple Airlines
Deal found 6/10![Multiple Airlines logo]()
$114
This Super.com deal was found by Cheapflights users on 6/10. 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 7/811:59 pm
LAX
- ORD
Nonstop4h 18m
Frontier
Deal found 6/10![Frontier logo]()
$114
This Delta deal was found by Cheapflights users on 6/12. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/225:46 pm
LAX
- ORD
Nonstop4h 02m
Delta
Deal found 6/12![Delta logo]()
$115
This Kiwi.com deal was found by Cheapflights users on 6/13. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/226:30 am
LAX
- RFD
1 stop27h 54m
Multiple Airlines
Deal found 6/13![Multiple Airlines logo]()
$117
This Frontier deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/1211:34 pm
LAX
- MDW
1 stop8h 17m
Frontier
Deal found 6/16![Frontier logo]()
$120
This Delta deal was found by Cheapflights users on 6/10. 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.
Tue 7/215:15 pm
LAX
- ORD
Nonstop4h 03m
Delta
Deal found 6/10![Delta logo]()
$120
This Kiwi.com deal was found by Cheapflights users on 6/11. 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.
Sun 8/2311:59 pm
LAX
- ORD
Nonstop4h 20m
Frontier
Deal found 6/11![Frontier logo]()
$121
This Trip.com deal was found by Cheapflights users on 6/11. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/2211:59 pm
LAX
- ORD
Nonstop4h 18m
Frontier
Deal found 6/11![Frontier logo]()
$122
This Southwest deal was found by Cheapflights users on 6/11. 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.
Wed 8/198:25 am
LAX
- MDW
2 stops6h 45m
Southwest
Deal found 6/11![Southwest logo]()
$123
Find flight deals from Los Angeles to Illinois
Keep the following information in mind while searching for Los Angeles to Illinois flight deals. Data was last updated June 16, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $223 (Delta) |
One-way from | $111 (Kiwi.com) |
Popular in | June |
Cheapest in | September |
Average price | $417 |
Good round-trip deal | $358 or less |
Good one-way deal | $205 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Los Angeles 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 2,558,603 searches. Data last updated June 16, 2026.
Use the filters below to find and compare flights from Los Angeles to Illinois that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Los AngelesChicago
LAX - ORD
LAXORD
Los Angeles
Wed 10/28
7:35 am-5:14 pm
1 stop7h 39m
Chicago O'Hare Intl
Mon 11/2
7:35 am-10:15 am
Nonstop4h 40m
$223
Los AngelesChicago
LAX - ORD
LAXORD
Los Angeles
Fri 9/11
11:30 pm-5:42 am
Nonstop4h 12m
Chicago O'Hare Intl
Thu 9/17
1:58 pm-4:30 pm
Nonstop4h 32m
$249
Los AngelesChicago
LAX - RFD
LAXRFD
Los Angeles
Thu 8/6
1:56 pm-8:34 pm
1 stop28h 38m
Chicago Greater Rockford
Fri 8/14
9:24 pm-1:01 pm
1 stop17h 37m
$266
Los AngelesChicago
LAX - ORD
LAXORD
Los Angeles
Fri 10/30
9:50 am-5:57 pm
1 stop6h 07m
Chicago O'Hare Intl
Mon 11/2
1:35 pm-8:31 pm
1 stop8h 56m
$269
Los AngelesChicago
LAX - ORD
LAXORD
Los Angeles
Sat 7/11
1:10 pm-9:20 pm
1 stop6h 10m
Chicago O'Hare Intl
Tue 7/14
7:29 am-10:00 am
Nonstop4h 31m
$277
Los AngelesChicago
LAX - ORD
LAXORD
Los Angeles
Tue 9/29
10:35 pm-4:45 am
Nonstop4h 10m
Chicago O'Hare Intl
Sat 10/3
10:30 am-1:06 pm
Nonstop4h 36m
$295
Los AngelesChicago
LAX - ORD
LAXORD
Los Angeles
Sat 8/29
12:40 pm-7:00 pm
Nonstop4h 20m
Chicago O'Hare Intl
Tue 9/1
3:48 pm-6:25 pm
Nonstop4h 37m
$295
Los AngelesChicago
LAX - ORD
LAXORD
Los Angeles
Sat 9/5
9:45 am-3:50 pm
Nonstop4h 05m
Chicago O'Hare Intl
Sat 9/12
9:30 am-11:55 am
Nonstop4h 25m
$295
Los AngelesChicago
LAX - ORD
LAXORD
Los Angeles
Sat 8/8
5:46 pm-11:48 pm
Nonstop4h 02m
Chicago O'Hare Intl
Sat 8/15
9:30 am-11:52 am
Nonstop4h 22m
$295
Los AngelesChicago
LAX - RFD
LAXRFD
Los Angeles
Thu 8/20
10:19 pm-12:23 pm
1 stop12h 04m
Chicago Greater Rockford
Sun 8/23
9:35 pm-9:25 am
1 stop13h 50m
$296
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Los Angeles to Illinois
Have a flexible travel schedule? Discover the best time to fly to Illinois from Los Angeles with our price prediction graph.
LAX-RFD
LAX-ORD
LAX-MDW
LAX-MLI
LAX-PIA
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 Los Angeles to Illinois
LAX-USIL
LAX-RFD
LAX-ORD
LAX-MDW
LAX-MLI
What is the cheapest month to book a flight from Los Angeles to Illinois?
Currently, September is the cheapest month in which you can book a flight from Los Angeles to Illinois (average of $267). Flying from Los Angeles to Illinois in January is currently the most expensive (average of $526). 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 LAX to IL?
Find hourly flight availability from Los Angeles 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 June 16, 2026.
Unlike in the evening, when flights are generally more expensive, you can save up to 21% on flights from Los Angeles to Illinois by exploring options for tickets in the morning.
Weekly flight availability from Los Angeles to Illinois
Explore weekly flight availability from Los Angeles 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 June 16, 2026.
The most flights from LAX to USIL are scheduled on a Friday (133 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (115 on average).
How much does it cost to fly round-trip from Los Angeles to Illinois?
How far ahead should I book a flight from Los Angeles to Illinois?
The price you pay for your flight from Los Angeles to Illinois may vary depending on when you book. For the best chance of a lower fare, look to book 41 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 Los Angeles to Illinois?
Use this chart to determine the cheapest time to fly round-trip from Los Angeles to Illinois. Price data was last updated on June 13, 2026.
Travelers seeking maximum savings on their Los Angeles to Illinois flight should consider departing on Wednesday mornings when fares are most often at their lowest. Sunday evenings 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 June 16, 2026.
Read through reviews of airlines operating flights from Los Angeles to Illinois, such as Southwest,Delta, andUnited Airlines. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Crew
8.6
Entertainment
7.5
Food
7.0
Overall
7.9
Comfort
8.0
Boarding
8.1
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Crew
8.6
Entertainment
7.5
Food
7.0
Overall
7.9
Comfort
8.0
Boarding
8.1
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Crew
8.6
Entertainment
7.5
Food
7.0
Overall
7.9
Comfort
8.0
Boarding
8.1
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Crew
8.6
Entertainment
7.5
Food
7.0
Overall
7.9
Comfort
8.0
Boarding
8.1
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Crew
8.6
Entertainment
7.5
Food
7.0
Overall
7.9
Comfort
8.0
Boarding
8.1
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Crew
8.6
Entertainment
7.5
Food
7.0
Overall
7.9
Comfort
8.0
Boarding
8.1
Reviews
1 / 20
8.0
ExcellentLa Tracimeldamarcos,Jun 2026
LAX - SLC
Related info for your journey
Find useful and relevant information for your journey from Los Angeles 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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Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
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Alternative routes for Los Angeles 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 Los Angeles to Illinois by cabin class
Find flights from Los Angeles to Illinois, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Los Angeles and Illinois flights
Browse other Los Angeles and Illinois flight options. Last updated on June 16, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Los Angeles to Illinois flights
Consider these flights traveling from Los Angeles to Illinois.
Top 7 airlines flying from Los Angeles to Illinois
Discover the top 7 airlines that operate flights from Los Angeles 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 2,558,603 searches. Data last updated June 16, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$96 | Average$270 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$166 | Average$277 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$179 | Average$374 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$196 | Average$363 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$198 | Average$450 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$202 | Average$474 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$288 | Average$446 | FlexibilityNo cancel fee | On-time75% |