$112+ 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 9/10. Fares are subject to change and may not be available on all flights or dates of travel.
LAX — ORD
Aug 30 — Sep 61
Round-trip
1 adult, Economy
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Find cheap flights from Los Angeles 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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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Los Angeles to Illinois
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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 July 31, 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 July 31, 2026.
This Kiwi.com deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/2511:59 pm
LAX
- ORD
Nonstop4h 18m
Frontier
Fri 8/282:41 pm
ORD
- LAX
1 stop19h 49m
Frontier
Deal found 7/26![Frontier logo]()
$230
This Kiwi.com deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2711:34 pm
LAX
- MDW
1 stop9h 21m
Frontier
Mon 8/319:26 pm
MDW
- LAX
2 stops26h 28m
Frontier
Deal found 7/31![Frontier logo]()
$231
This Kiwi.com deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/1811:59 pm
LAX
- ORD
Nonstop4h 18m
Frontier
Thu 8/207:05 am
ORD
- LAX
2 stops19h 06m
Frontier
Deal found 7/30![Frontier logo]()
$231
This Kiwi.com deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/206:55 am
LAX
- ORD
1 stop10h 07m
Frontier
Mon 8/249:20 pm
ORD
- LAX
Nonstop4h 44m
Frontier
Deal found 7/27![Frontier logo]()
$232
This CheapOair deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/249:49 am
LAX
- MDW
1 stop8h 42m
Frontier
Wed 9/26:05 am
MDW
- LAX
1 stop12h 49m
Frontier
Deal found 7/31![Frontier logo]()
$233
This Kissandfly.com deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/26:14 pm
LAX
- ORD
Nonstop4h 15m
Frontier
Tue 9/89:20 pm
ORD
- LAX
Nonstop4h 44m
Frontier
Deal found 7/26![Frontier logo]()
$233
This Frontier deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/2811:59 pm
LAX
- ORD
Nonstop4h 18m
Frontier
Wed 9/29:20 pm
ORD
- LAX
Nonstop4h 44m
Frontier
Deal found 7/27![Frontier logo]()
$234
This FlightHub deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/1112:59 am
LAX
- MDW
1 stop9h 00m
Frontier
Tue 9/156:25 am
MDW
- LAX
1 stop13h 17m
Frontier
Deal found 7/31![Frontier logo]()
$235
This Kiwi.com deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/276:55 am
LAX
- RFD
1 stop11h 50m
Multiple Airlines
Sun 8/309:35 pm
RFD
- LAX
1 stop13h 54m
Multiple Airlines
Deal found 7/29![Multiple Airlines logo]()
$235
This Kiwi.com deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/206:55 am
LAX
- RFD
1 stop11h 50m
Multiple Airlines
Sun 8/239:35 pm
RFD
- LAX
1 stop13h 54m
Multiple Airlines
Deal found 7/26![Multiple Airlines logo]()
$236
This Kiwi.com deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/179:09 pm
LAX
- ORD
2 stops14h 27m
Frontier
Thu 8/202:41 pm
ORD
- LAX
1 stop11h 30m
Frontier
Deal found 7/27![Frontier logo]()
$236
This Super.com deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/1711:59 pm
LAX
- ORD
Nonstop4h 18m
Frontier
Sat 8/229:20 am
ORD
- LAX
1 stop10h 10m
Frontier
Deal found 7/30![Frontier logo]()
$237
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 July 31, 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 July 31, 2026.
This Kiwi.com deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/206:55 am
LAX
- RFD
1 stop11h 50m
Multiple Airlines
Sun 8/239:35 pm
RFD
- LAX
1 stop13h 54m
Multiple Airlines
Deal found 7/27![Multiple Airlines logo]()
$238
This United Airlines deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/98:15 am
LAX
- ORD
Nonstop4h 21m
United Airlines
Mon 9/141:58 pm
ORD
- LAX
Nonstop4h 32m
United Airlines
Deal found 7/28![United Airlines logo]()
$247
This Delta deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/167:35 am
LAX
- ORD
Nonstop4h 03m
Delta
Tue 10/202:45 pm
ORD
- LAX
Nonstop4h 31m
Delta
Deal found 7/29![Delta logo]()
$247
This Southwest deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/511:55 pm
LAX
- MDW
Nonstop4h 00m
Southwest
Tue 9/156:00 pm
MDW
- LAX
1 stop6h 25m
Southwest
Deal found 7/28![Southwest logo]()
$257
This American Airlines deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/297:00 am
LAX
- PIA
1 stop6h 53m
American Airlines
Sat 9/54:43 pm
PIA
- LAX
1 stop7h 19m
American Airlines
Deal found 7/29![American Airlines logo]()
$359
This United Airlines deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/54:45 pm
LAX
- ORD
Nonstop4h 10m
United Airlines
Wed 10/72:00 pm
ORD
- LAX
Nonstop4h 32m
United Airlines
Deal found 7/26![United Airlines logo]()
$247
This Delta deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/185:25 pm
LAX
- ORD
Nonstop4h 06m
Delta
Sun 9/207:07 am
ORD
- LAX
Nonstop4h 28m
Delta
Deal found 7/29![Delta logo]()
$247
This Southwest deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/111:55 pm
LAX
- MDW
Nonstop4h 00m
Southwest
Sat 9/58:45 pm
MDW
- LAX
Nonstop4h 25m
Southwest
Deal found 7/30![Southwest logo]()
$262
This Kiwi.com deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/2411:30 am
LAX
- RFD
1 stop7h 09m
Multiple Airlines
Mon 9/288:44 pm
RFD
- LAX
2 stops21h 39m
Multiple Airlines
Deal found 7/29![Multiple Airlines logo]()
$266
This Delta deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/215:25 pm
LAX
- ORD
Nonstop4h 06m
Delta
Wed 9/235:10 pm
ORD
- LAX
1 stop7h 00m
Delta
Deal found 7/29![Delta logo]()
$257
This Southwest deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/2411:55 pm
LAX
- MDW
Nonstop4h 00m
Southwest
Wed 9/28:45 pm
MDW
- LAX
Nonstop4h 20m
Southwest
Deal found 7/28![Southwest logo]()
$262
This Kiwi.com deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/2411:30 am
LAX
- RFD
1 stop7h 09m
Multiple Airlines
Sun 9/279:29 pm
RFD
- LAX
2 stops26h 53m
Multiple Airlines
Deal found 7/29![Multiple Airlines logo]()
$266
This Delta deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/145:25 pm
LAX
- ORD
Nonstop4h 06m
Delta
Mon 9/215:10 pm
ORD
- LAX
1 stop7h 00m
Delta
Deal found 7/31![Delta logo]()
$257
This Southwest deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/1311:55 pm
LAX
- MDW
Nonstop3h 55m
Southwest
Sat 10/177:45 pm
MDW
- LAX
Nonstop4h 30m
Southwest
Deal found 7/29![Southwest logo]()
$262
This Kiwi.com deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/106:05 am
LAX
- PIA
1 stop9h 14m
Multiple Airlines
Mon 9/145:14 pm
PIA
- LAX
1 stop19h 38m
Multiple Airlines
Deal found 7/26![Multiple Airlines logo]()
$272
This Delta deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/511:15 am
LAX
- ORD
Nonstop4h 08m
Delta
Thu 10/85:29 pm
ORD
- LAX
1 stop7h 05m
Delta
Deal found 7/26![Delta logo]()
$257
This American Airlines deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/228:00 am
LAX
- BMI
1 stop6h 19m
American Airlines
Sat 8/295:40 pm
BMI
- LAX
1 stop9h 18m
American Airlines
Deal found 7/29![American Airlines logo]()
$359
This Southwest deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/111:55 pm
LAX
- MDW
Nonstop4h 00m
Southwest
Wed 9/210:15 am
MDW
- LAX
Nonstop4h 20m
Southwest
Deal found 7/31![Southwest logo]()
$276
This Kiwi.com deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/92:01 pm
LAX
- PIA
1 stop25h 18m
Multiple Airlines
Mon 9/145:14 pm
PIA
- LAX
1 stop19h 38m
Multiple Airlines
Deal found 7/26![Multiple Airlines logo]()
$279
This Delta deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/167:40 am
LAX
- ORD
Nonstop4h 04m
Delta
Fri 10/27:40 pm
ORD
- LAX
1 stop6h 15m
Delta
Deal found 7/28![Delta logo]()
$257
This American Airlines deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/271:51 pm
LAX
- BMI
1 stop7h 02m
American Airlines
Thu 9/34:49 pm
BMI
- LAX
1 stop7h 58m
American Airlines
Deal found 7/28![American Airlines logo]()
$359
This Delta deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/310:45 pm
LAX
- ORD
1 stop7h 11m
Delta
Tue 10/62:45 pm
ORD
- LAX
Nonstop4h 31m
Delta
Deal found 7/27![Delta logo]()
$257
This Kiwi.com deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/2411:30 am
LAX
- RFD
1 stop7h 09m
Multiple Airlines
Thu 10/19:03 pm
RFD
- LAX
1 stop12h 44m
Multiple Airlines
Deal found 7/27![Multiple Airlines logo]()
$283
This Southwest deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2711:55 pm
LAX
- MDW
Nonstop4h 00m
Southwest
Mon 8/315:50 pm
MDW
- LAX
1 stop7h 10m
Southwest
Deal found 7/26![Southwest logo]()
$287
This United Airlines deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/1212:10 am
LAX
- PIA
1 stop7h 56m
United Airlines
Wed 8/195:45 am
PIA
- LAX
1 stop7h 38m
United Airlines
Deal found 7/28![United Airlines logo]()
$394
This American Airlines deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/156:01 am
LAX
- BMI
1 stop5h 56m
American Airlines
Mon 10/193:58 pm
BMI
- LAX
1 stop9h 01m
American Airlines
Deal found 7/31![American Airlines logo]()
$379
This Kiwi.com deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1711:30 am
LAX
- RFD
1 stop7h 09m
Multiple Airlines
Sun 9/209:29 pm
RFD
- LAX
1 stop12h 18m
Multiple Airlines
Deal found 7/31![Multiple Airlines logo]()
$285
This Southwest deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/278:20 pm
LAX
- MDW
1 stop6h 40m
Southwest
Sat 10/315:30 am
MDW
- LAX
2 stops8h 15m
Southwest
Deal found 7/27![Southwest logo]()
$287
This Delta deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/1110:55 pm
LAX
- ORD
1 stop8h 30m
Delta
Mon 9/145:44 pm
ORD
- LAX
1 stop8h 40m
Delta
Deal found 7/28![Delta logo]()
$267
This Southwest deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/1311:55 pm
LAX
- MDW
Nonstop4h 00m
Southwest
Mon 9/147:00 am
MDW
- LAX
Nonstop4h 15m
Southwest
Deal found 7/30![Southwest logo]()
$292
Last-minute flights from Los Angeles to IllinoisDiscover last-minute flight deals from Los Angeles to Illinois. Data last updated July 31, 2026 and is based on user searches.
Discover last-minute flight deals from Los Angeles to Illinois. Data last updated July 31, 2026 and is based on user searches.
This Frontier deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/1711:59 pm
LAX
- ORD
Nonstop4h 18m
Frontier
Fri 8/219:20 pm
ORD
- LAX
Nonstop4h 44m
Frontier
Deal found 7/30![Frontier logo]()
$233
This Kiwi.com deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/179:09 pm
LAX
- ORD
2 stops14h 27m
Frontier
Thu 8/202:41 pm
ORD
- LAX
1 stop11h 30m
Frontier
Deal found 7/27![Frontier logo]()
$236
This Super.com deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/1711:59 pm
LAX
- ORD
Nonstop4h 18m
Frontier
Sat 8/229:20 am
ORD
- LAX
1 stop10h 10m
Frontier
Deal found 7/30![Frontier logo]()
$237
This Kiwi.com deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/1811:59 pm
LAX
- ORD
Nonstop4h 18m
Frontier
Thu 8/207:05 am
ORD
- LAX
2 stops19h 06m
Frontier
Deal found 7/30![Frontier logo]()
$231
This Kiwi.com deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/206:55 am
LAX
- ORD
1 stop10h 07m
Frontier
Mon 8/249:20 pm
ORD
- LAX
Nonstop4h 44m
Frontier
Deal found 7/27![Frontier logo]()
$232
This Kiwi.com deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/206:55 am
LAX
- RFD
1 stop11h 50m
Multiple Airlines
Sun 8/239:35 pm
RFD
- LAX
1 stop13h 54m
Multiple Airlines
Deal found 7/26![Multiple Airlines logo]()
$236
This CheapOair deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/249:49 am
LAX
- MDW
1 stop8h 42m
Frontier
Wed 9/26:05 am
MDW
- LAX
1 stop12h 49m
Frontier
Deal found 7/31![Frontier logo]()
$233
This Kiwi.com deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/2511:59 pm
LAX
- ORD
Nonstop4h 18m
Frontier
Fri 8/282:41 pm
ORD
- LAX
1 stop19h 49m
Frontier
Deal found 7/26![Frontier logo]()
$230
This Kiwi.com deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2711:34 pm
LAX
- MDW
1 stop9h 21m
Frontier
Mon 8/319:26 pm
MDW
- LAX
2 stops26h 28m
Frontier
Deal found 7/31![Frontier logo]()
$231
This Kiwi.com deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/276:55 am
LAX
- RFD
1 stop11h 50m
Multiple Airlines
Sun 8/309:35 pm
RFD
- LAX
1 stop13h 54m
Multiple Airlines
Deal found 7/29![Multiple Airlines logo]()
$235
This Kiwi.com deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2711:41 pm
LAX
- ORD
Nonstop4h 18m
Frontier
Mon 8/312:41 pm
ORD
- LAX
1 stop11h 30m
Frontier
Deal found 7/26![Frontier logo]()
$235
This Frontier deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/2811:59 pm
LAX
- ORD
Nonstop4h 18m
Frontier
Wed 9/29:20 pm
ORD
- LAX
Nonstop4h 44m
Frontier
Deal found 7/30![Frontier logo]()
$234
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 July 31, 2026.
Search for one-way flight options from Los Angeles to Illinois. Find affordable one-way fares based on user searches. Data last updated July 31, 2026.
This Kiwi.com deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/106:05 am
LAX
- PIA
1 stop9h 14m
Multiple Airlines
Deal found 7/26![Multiple Airlines logo]()
$112
This Kiwi.com deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/92:01 pm
LAX
- PIA
1 stop25h 18m
Multiple Airlines
Deal found 7/26![Multiple Airlines logo]()
$115
This Kiwi.com deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/2110:04 pm
LAX
- MDW
2 stops17h 42m
Frontier
Deal found 7/31![Frontier logo]()
$136
This Kiwi.com deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/34:15 pm
LAX
- RFD
1 stop17h 04m
Multiple Airlines
Deal found 7/30![Multiple Airlines logo]()
$136
This Kiwi.com deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/249:09 pm
LAX
- ORD
2 stops16h 50m
Frontier
Deal found 7/31![Frontier logo]()
$136
This Kiwi.com deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/2410:22 pm
LAX
- RFD
2 stops37h 01m
Multiple Airlines
Deal found 7/28![Multiple Airlines logo]()
$137
This Kiwi.com deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/179:09 pm
LAX
- ORD
2 stops14h 27m
Frontier
Deal found 7/28![Frontier logo]()
$137
This Kiwi.com deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/299:09 pm
LAX
- RFD
2 stops37h 44m
Multiple Airlines
Deal found 7/30![Multiple Airlines logo]()
$138
This Super.com deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/266:25 pm
LAX
- ORD
1 stop28h 24m
Frontier
Deal found 7/30![Frontier logo]()
$138
This Southwest deal was found by Cheapflights users on 7/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/262:05 pm
LAX
- MDW
Nonstop3h 55m
Southwest
Deal found 7/29![Southwest logo]()
$139
This United Airlines deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/203:20 pm
LAX
- ORD
Nonstop4h 10m
United Airlines
Deal found 7/30![United Airlines logo]()
$139
This Kiwi.com deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/206:55 am
LAX
- MDW
2 stops11h 36m
Frontier
Deal found 7/30![Frontier logo]()
$140
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 July 31, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $230 (Kiwi.com) |
One-way from | $112 (Kiwi.com) |
Popular in | June |
Cheapest in | September |
Average price | $412 |
Good round-trip deal | $334 or less |
Good one-way deal | $193 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 July 31, 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 - RFD
LAXRFD
Los Angeles
Thu 8/20
6:55 am-8:45 pm
1 stop11h 50m
Chicago Greater Rockford
Sun 8/23
9:35 pm-9:29 am
1 stop13h 54m
$238
Los AngelesChicago
LAX - ORD
LAXORD
Los Angeles
Wed 9/9
8:15 am-2:36 pm
Nonstop4h 21m
Chicago O'Hare Intl
Mon 9/14
1:58 pm-4:30 pm
Nonstop4h 32m
$247
Los AngelesChicago
LAX - ORD
LAXORD
Los Angeles
Fri 10/16
7:35 am-1:38 pm
Nonstop4h 03m
Chicago O'Hare Intl
Tue 10/20
2:45 pm-5:16 pm
Nonstop4h 31m
$247
Los AngelesChicago
LAX - ORD
LAXORD
Los Angeles
Mon 10/5
4:45 pm-10:55 pm
Nonstop4h 10m
Chicago O'Hare Intl
Wed 10/7
2:00 pm-4:32 pm
Nonstop4h 32m
$247
Los AngelesChicago
LAX - ORD
LAXORD
Los Angeles
Fri 9/18
5:25 pm-11:31 pm
Nonstop4h 06m
Chicago O'Hare Intl
Sun 9/20
7:07 am-9:35 am
Nonstop4h 28m
$247
Los AngelesChicago
LAX - MDW
LAXMDW
Los Angeles
Sat 9/5
11:55 pm-5:55 am
Nonstop4h 00m
Chicago Midway
Tue 9/15
6:00 pm-10:25 pm
1 stop6h 25m
$257
Los AngelesChicago
LAX - ORD
LAXORD
Los Angeles
Mon 9/21
5:25 pm-11:31 pm
Nonstop4h 06m
Chicago O'Hare Intl
Wed 9/23
5:10 pm-10:10 pm
1 stop7h 00m
$257
Los AngelesChicago
LAX - ORD
LAXORD
Los Angeles
Mon 9/14
5:25 pm-11:31 pm
Nonstop4h 06m
Chicago O'Hare Intl
Mon 9/21
5:10 pm-10:10 pm
1 stop7h 00m
$257
Los AngelesChicago
LAX - ORD
LAXORD
Los Angeles
Mon 10/5
11:15 am-5:23 pm
Nonstop4h 08m
Chicago O'Hare Intl
Thu 10/8
5:29 pm-10:34 pm
1 stop7h 05m
$257
Los AngelesChicago
LAX - ORD
LAXORD
Los Angeles
Wed 9/16
7:40 am-1:44 pm
Nonstop4h 04m
Chicago O'Hare Intl
Fri 10/2
7:40 pm-11:55 pm
1 stop6h 15m
$257
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-PIA
LAX-MDW
LAX-ORD
LAX-RFD
LAX-STL
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-PIA
LAX-MDW
LAX-ORD
LAX-RFD
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 $283). Flying from Los Angeles to Illinois in June is currently the most expensive (average of $437). 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 July 31, 2026.
Unlike in the evening, when flights are generally more expensive, you can save up to 20% 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 July 31, 2026.
The most flights from LAX to USIL are scheduled on a Thursday (135 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (75 on average).
How much does it cost to fly round-trip from Los Angeles to Illinois?
Airfare is typical for this route at the moment.
Los Angeles to Illinois flights typically cost between $208 and $404 in August.The cheapest round-trip price found within the last 5 days was $230 on Frontier (Aug 25-Aug 28).
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 July 25, 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 mornings 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 July 31, 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.
Food
7.0
Crew
8.6
Comfort
8.0
Boarding
8.1
Overall
8.0
Entertainment
7.5
Reviews
1 / 20
6.0
GoodReza,Jun 2026
TPA - MDW
Food
7.0
Crew
8.6
Comfort
8.0
Boarding
8.1
Overall
8.0
Entertainment
7.5
Reviews
1 / 20
6.0
GoodReza,Jun 2026
TPA - MDW
Food
7.0
Crew
8.6
Comfort
8.0
Boarding
8.1
Overall
8.0
Entertainment
7.5
Reviews
1 / 20
6.0
GoodReza,Jun 2026
TPA - MDW
Food
7.0
Crew
8.6
Comfort
8.0
Boarding
8.1
Overall
8.0
Entertainment
7.5
Reviews
1 / 20
6.0
GoodReza,Jun 2026
TPA - MDW
Food
7.0
Crew
8.6
Comfort
8.0
Boarding
8.1
Overall
8.0
Entertainment
7.5
Reviews
1 / 20
6.0
GoodReza,Jun 2026
TPA - MDW
Food
7.0
Crew
8.6
Comfort
8.0
Boarding
8.1
Overall
8.0
Entertainment
7.5
Reviews
1 / 20
6.0
GoodReza,Jun 2026
TPA - MDW
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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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 July 31, 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 July 31, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$97 | Average$283 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$166 | Average$305 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$194 | Average$355 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$197 | Average$486 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$198 | Average$453 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$221 | Average$418 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$288 | Average$457 | FlexibilityNo cancel fee | On-time75% |