$65+ Cheap flights from Las Vegas (LAS) 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 9/11. Fares are subject to change and may not be available on all flights or dates of travel.
LAS — ORD
Sep 11 — Sep 181
Round-trip
1 adult, Economy
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Find cheap flights from Las Vegas to Illinois with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Cheapest flights from Las Vegas to IllinoisExplore the most affordable flight options available from Las Vegas to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 12, 2026.
Explore the most affordable flight options available from Las Vegas to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 12, 2026.
This Kiwi.com deal was found by Cheapflights users on 8/10. 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 9/116:45 am -
1 stop10h 32m
Mon 9/1412:17 pm -
Nonstop3h 35m
Deal found 8/10![Frontier logo]()
$138
This Super.com deal was found by Cheapflights users on 8/11. 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 10/66:15 am -
Nonstop3h 17m
Tue 10/135:19 pm -
Nonstop3h 43m
Deal found 8/11![Frontier logo]()
$139
This Frontier deal was found by Cheapflights users on 8/10. 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.
Thu 9/106:00 am -
Nonstop3h 17m
Tue 9/1512:17 pm -
Nonstop3h 35m
Deal found 8/10![Frontier logo]()
$140
This Kiwi.com deal was found by Cheapflights users on 8/11. 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 9/108:44 pm -
1 stop20h 33m
Mon 9/1412:17 pm -
Nonstop3h 35m
Deal found 8/11![Frontier logo]()
$155
This Mytrip deal was found by Cheapflights users on 8/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/157:05 am -
Nonstop3h 10m
Sun 10/182:00 pm -
Nonstop3h 32m
Deal found 8/8![Allegiant Air logo]()
$160
This Kiwi.com deal was found by Cheapflights users on 8/11. 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.
Wed 9/166:45 am -
1 stop10h 32m
Wed 9/2312:17 pm -
Nonstop3h 35m
Deal found 8/11![Frontier logo]()
$162
This Kiwi.com deal was found by Cheapflights users on 8/11. 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 9/248:44 pm -
1 stop20h 33m
Mon 9/2812:17 pm -
Nonstop3h 35m
Deal found 8/11![Frontier logo]()
$164
This Kiwi.com deal was found by Cheapflights users on 8/10. 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 10/79:45 am -
1 stop7h 32m
Mon 10/125:19 pm -
Nonstop3h 43m
Deal found 8/10![Frontier logo]()
$165
This Cheapflightsfares deal was found by Cheapflights users on 8/10. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/97:57 pm -
Nonstop3h 20m
Tue 10/135:19 pm -
Nonstop3h 43m
Deal found 8/10![Frontier logo]()
$172
This Cheapflightsfares deal was found by Cheapflights users on 8/7. Clicking the “Pick Dates” 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.
Thu 9/37:05 am -
Nonstop3h 18m
Sun 9/61:13 pm -
Nonstop3h 24m
Deal found 8/7![Allegiant Air logo]()
$176
This Cheapflightsfares deal was found by Cheapflights users on 8/11. 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.
Fri 10/211:50 pm -
Nonstop3h 48m
Wed 10/71:21 pm -
Nonstop4h 09m
Deal found 8/11![Frontier logo]()
$186
This FlightHub deal was found by Cheapflights users on 8/11. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/610:35 am -
1 stop21h 26m
Mon 11/99:26 am -
1 stop26h 00m
Deal found 8/11![Frontier logo]()
$188
Best flights from Las Vegas to IllinoisDiscover carefully curated flight deals from Las Vegas to Illinois that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 12, 2026.
Discover carefully curated flight deals from Las Vegas to Illinois that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 12, 2026.
This Super.com deal was found by Cheapflights users on 8/11. 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.
Wed 9/212:25 pm -
Nonstop3h 25m
Mon 9/76:45 pm -
Nonstop3h 35m
Deal found 8/11![Frontier logo]()
$187
This Southwest deal was found by Cheapflights users on 8/11. 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 11/310:45 am -
1 stop4h 35m
Sat 11/71:25 pm -
1 stop5h 10m
Deal found 8/11![Southwest logo]()
$197
This CheapOair deal was found by Cheapflights users on 8/10. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/33:15 pm -
Nonstop3h 24m
Sun 9/69:29 pm -
Nonstop3h 39m
Deal found 8/10![Allegiant Air logo]()
$198
This United Airlines deal was found by Cheapflights users on 8/11. 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.
Thu 9/310:50 am -
Nonstop3h 52m
Mon 9/78:45 pm -
Nonstop4h 07m
Deal found 8/11![United Airlines logo]()
$203
This Kiwi.com deal was found by Cheapflights users on 8/7. Clicking the “Pick Dates” 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 9/179:30 pm -
1 stop18h 41m
Sun 9/209:29 pm -
Nonstop3h 39m
Deal found 8/7![Multiple Airlines logo]()
$204
This Delta deal was found by Cheapflights users on 8/11. 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.
Mon 8/311:17 pm -
1 stop6h 16m
Thu 9/32:00 pm -
1 stop6h 14m
Deal found 8/11![Delta logo]()
$250
This Alaska Airlines deal was found by Cheapflights users on 8/10. 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.
Tue 11/34:58 pm -
1 stop18h 19m
Sat 11/72:15 pm -
1 stop8h 10m
Deal found 8/10![Alaska Airlines logo]()
$281
This American Airlines deal was found by Cheapflights users on 8/7. Clicking the “Pick Dates” 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 9/108:00 am -
1 stop5h 54m
Sun 9/135:02 am -
1 stop5h 50m
Deal found 8/7![American Airlines logo]()
$369
This Mytrip deal was found by Cheapflights users on 8/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/133:15 pm -
Nonstop3h 24m
Sun 9/209:29 pm -
Nonstop3h 39m
Deal found 8/7![Allegiant Air logo]()
$207
This Kiwi.com deal was found by Cheapflights users on 8/8. Clicking the “Pick Dates” 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 10/222:10 pm -
Nonstop3h 20m
Sun 10/258:53 pm -
Nonstop3h 43m
Deal found 8/8![Allegiant Air logo]()
$207
This CheapOair deal was found by Cheapflights users on 8/10. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/303:18 pm -
Nonstop3h 27m
Sun 9/69:29 pm -
Nonstop3h 39m
Deal found 8/10![Allegiant Air logo]()
$219
This Southwest deal was found by Cheapflights users on 8/10. 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 9/1010:10 am -
1 stop5h 00m
Sun 9/139:55 pm -
Nonstop3h 55m
Deal found 8/10![Southwest logo]()
$269
This Booking.com deal was found by Cheapflights users on 8/7. Clicking the “Pick Dates” 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.
Thu 9/173:15 pm -
Nonstop3h 24m
Sun 9/209:29 pm -
Nonstop3h 39m
Deal found 8/7![Allegiant Air logo]()
$224
This United Airlines deal was found by Cheapflights users on 8/7. Clicking the “Pick Dates” 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 9/59:00 am -
1 stop8h 31m
Sat 9/126:00 pm -
1 stop7h 20m
Deal found 8/7![United Airlines logo]()
$305
This Delta deal was found by Cheapflights users on 8/11. 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 11/511:45 pm -
1 stop8h 37m
Tue 11/1011:00 am -
1 stop7h 57m
Deal found 8/11![Delta logo]()
$305
This Alaska Airlines deal was found by Cheapflights users on 8/8. Clicking the “Pick Dates” 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 9/3010:23 am -
1 stop6h 58m
Wed 10/72:21 pm -
1 stop7h 17m
Deal found 8/8![Alaska Airlines logo]()
$310
This Southwest deal was found by Cheapflights users on 8/11. 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.
Sat 9/56:35 am -
Nonstop3h 30m
Mon 9/76:40 am -
Nonstop3h 50m
Deal found 8/11![Southwest logo]()
$286
This Southwest deal was found by Cheapflights users on 8/10. 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.
Fri 10/27:30 pm -
Nonstop3h 25m
Sun 10/49:40 pm -
Nonstop3h 55m
Deal found 8/10![Southwest logo]()
$292
This United Airlines deal was found by Cheapflights users on 8/11. 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 9/912:40 pm -
1 stop8h 33m
Wed 9/166:39 pm -
1 stop6h 41m
Deal found 8/11![United Airlines logo]()
$324
This Delta deal was found by Cheapflights users on 8/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/276:25 am -
1 stop8h 58m
Tue 9/297:07 am -
1 stop7h 18m
Deal found 8/7![Delta logo]()
$326
This Cheapflightsfares deal was found by Cheapflights users on 8/9. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/226:40 am -
Nonstop3h 12m
Sun 10/252:37 pm -
Nonstop3h 40m
Deal found 8/9![Allegiant Air logo]()
$253
This Alaska Airlines deal was found by Cheapflights users on 8/7. Clicking the “Pick Dates” 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.
Fri 9/258:45 am -
1 stop8h 36m
Sun 9/277:20 am -
1 stop6h 44m
Deal found 8/7![Alaska Airlines logo]()
$339
This Super.com deal was found by Cheapflights users on 8/11. 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.
Sun 8/2312:25 pm -
Nonstop3h 25m
Tue 8/255:27 pm -
1 stop5h 46m
Deal found 8/11![Frontier logo]()
$374
This Kiwi.com deal was found by Cheapflights users on 8/7. Clicking the “Pick Dates” 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 9/912:59 am -
2 stops14h 20m
Sun 9/1310:07 am -
1 stop11h 31m
Deal found 8/7![Multiple Airlines logo]()
$379
This Delta deal was found by Cheapflights users on 8/7. Clicking the “Pick Dates” 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 9/2112:40 am -
1 stop5h 50m
Sun 9/276:10 am -
1 stop6h 34m
Deal found 8/7![Delta logo]()
$326
This Southwest deal was found by Cheapflights users on 8/8. Clicking the “Pick Dates” 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 9/158:45 am -
1 stop5h 50m
Sat 9/194:05 pm -
Nonstop3h 50m
Deal found 8/8![Southwest logo]()
$297
This United Airlines deal was found by Cheapflights users on 8/9. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/37:10 am -
1 stop5h 59m
Sun 9/68:14 am -
1 stop6h 53m
Deal found 8/9![United Airlines logo]()
$339
This Alaska Airlines deal was found by Cheapflights users on 8/11. 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.
Fri 10/28:45 am -
1 stop8h 36m
Wed 10/77:20 am -
2 stops10h 04m
Deal found 8/11![Alaska Airlines logo]()
$355
This Southwest deal was found by Cheapflights users on 8/10. 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.
Fri 10/167:15 am -
1 stop5h 50m
Sun 10/189:40 pm -
Nonstop3h 55m
Deal found 8/10![Southwest logo]()
$302
This United Airlines deal was found by Cheapflights users on 8/11. 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.
Thu 12/174:34 pm -
1 stop5h 24m
Tue 12/299:35 pm -
Nonstop4h 15m
Deal found 8/11![United Airlines logo]()
$345
Last-minute flights from Las Vegas to IllinoisDiscover last-minute flight deals from Las Vegas to Illinois. Data last updated August 12, 2026 and is based on user searches.
Discover last-minute flight deals from Las Vegas to Illinois. Data last updated August 12, 2026 and is based on user searches.
This Cheapflightsfares deal was found by Cheapflights users on 8/6. Clicking the “Pick Dates” 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.
Fri 8/211:14 pm -
Nonstop3h 15m
Fri 8/287:19 pm -
Nonstop3h 30m
Deal found 8/6![Allegiant Air logo]()
$188
This Cheapflightsfares deal was found by Cheapflights users on 8/7. Clicking the “Pick Dates” 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.
Thu 9/37:05 am -
Nonstop3h 18m
Sun 9/61:13 pm -
Nonstop3h 24m
Deal found 8/7![Allegiant Air logo]()
$176
This Expedia deal was found by Cheapflights users on 8/11. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/89:25 pm -
1 stop6h 52m
Mon 9/148:55 pm -
Nonstop4h 10m
Deal found 8/11![Frontier logo]()
$189
This Kiwi.com deal was found by Cheapflights users on 8/11. 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.
Wed 9/97:30 am -
1 stop8h 53m
Tue 9/157:28 pm -
2 stops20h 39m
Deal found 8/11![Frontier logo]()
$191
This Cheapflightsfares deal was found by Cheapflights users on 8/11. 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.
Thu 9/106:00 am -
Nonstop3h 17m
Mon 9/1412:17 pm -
Nonstop3h 35m
Deal found 8/11![Frontier logo]()
$138
This Frontier deal was found by Cheapflights users on 8/10. 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.
Thu 9/106:00 am -
Nonstop3h 17m
Tue 9/1512:17 pm -
Nonstop3h 35m
Deal found 8/10![Frontier logo]()
$140
This Cheapflightsfares deal was found by Cheapflights users on 8/10. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/116:00 am -
Nonstop3h 17m
Mon 9/1412:17 pm -
Nonstop3h 35m
Deal found 8/10![Frontier logo]()
$150
This Kiwi.com deal was found by Cheapflights users on 8/11. 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.
Wed 9/166:45 am -
1 stop10h 32m
Wed 9/2312:17 pm -
Nonstop3h 35m
Deal found 8/11![Frontier logo]()
$162
This Kiwi.com deal was found by Cheapflights users on 8/11. 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 9/248:44 pm -
1 stop20h 33m
Mon 9/2812:17 pm -
Nonstop3h 35m
Deal found 8/11![Frontier logo]()
$164
This Trip.com deal was found by Cheapflights users on 8/12. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/257:30 am -
1 stop8h 21m
Mon 9/2812:54 pm -
1 stop10h 48m
Deal found 8/12![Frontier logo]()
$187
This Kiwi.com deal was found by Cheapflights users on 8/11. 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 9/269:40 am -
1 stop12h 43m
Tue 9/297:28 pm -
2 stops20h 39m
Deal found 8/11![Frontier logo]()
$190
This Frontier deal was found by Cheapflights users on 8/11. 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 9/296:15 am -
Nonstop3h 17m
Wed 10/78:10 pm -
1 stop5h 34m
Deal found 8/11![Frontier logo]()
$174
One-way flights from Las Vegas to IllinoisSearch for one-way flight options from Las Vegas to Illinois. Find affordable one-way fares based on user searches. Data last updated August 12, 2026.
Search for one-way flight options from Las Vegas to Illinois. Find affordable one-way fares based on user searches. Data last updated August 12, 2026.
This Kiwi.com deal was found by Cheapflights users on 8/10. 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 9/119:45 am -
1 stop7h 32m
Deal found 8/10![Frontier logo]()
$65
This Super.com deal was found by Cheapflights users on 8/10. 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 9/96:15 am -
Nonstop3h 17m
Deal found 8/10![Frontier logo]()
$69
This Cheapflightsfares deal was found by Cheapflights users on 8/11. 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.
Thu 9/106:00 am -
Nonstop3h 17m
Deal found 8/11![Frontier logo]()
$70
This Super.com deal was found by Cheapflights users on 8/9. 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 8/2212:25 pm -
Nonstop3h 25m
Deal found 8/9![Frontier logo]()
$73
This Kiwi.com deal was found by Cheapflights users on 8/11. 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.
Wed 10/76:45 am -
1 stop10h 32m
Deal found 8/11![Frontier logo]()
$90
This Kiwi.com deal was found by Cheapflights users on 8/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/59:15 pm -
1 stop20h 00m
Deal found 8/7![Frontier logo]()
$93
This CheapOair deal was found by Cheapflights users on 8/7. Clicking the “Pick Dates” 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.
Thu 10/17:00 am -
Nonstop3h 12m
Deal found 8/7![Allegiant Air logo]()
$95
This Cheapflightsfares deal was found by Cheapflights users on 8/9. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/237:05 am -
Nonstop3h 11m
Deal found 8/9![Allegiant Air logo]()
$97
This Kiwi.com deal was found by Cheapflights users on 8/11. 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.
Wed 9/910:05 am -
2 stops12h 18m
Deal found 8/11![Frontier logo]()
$109
This Super.com deal was found by Cheapflights users on 8/10. 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.
Sat 9/1212:59 am -
1 stop9h 00m
Deal found 8/10![Frontier logo]()
$109
This Kiwi.com deal was found by Cheapflights users on 8/11. 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.
Mon 9/1410:05 am -
2 stops12h 18m
Deal found 8/11![Frontier logo]()
$110
This Frontier deal was found by Cheapflights users on 8/10. 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.
Thu 9/107:30 am -
1 stop8h 16m
Deal found 8/10![Frontier logo]()
$111
Find flight deals from Las Vegas to Illinois
Keep the following information in mind while searching for Las Vegas to Illinois flight deals. Data was last updated August 12, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $138 (Cheapflightsfares) |
One-way from | $65 (Kiwi.com) |
Popular in | March |
Cheapest in | November |
Average price | $291 |
Good round-trip deal | $222 or less |
Good one-way deal | $75 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Las Vegas 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 August 12, 2026.
Use the filters below to find and compare flights from Las Vegas to Illinois that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Las VegasSt. Louis
LAS Las Vegas Harry Reid Intl - STL Lambert-St Louis
LASSTL
Las Vegas Harry Reid Intl
Wed 9/2
12:25 pm-5:50 pm
Nonstop3h 25m
Lambert-St Louis
Mon 9/7
6:45 pm-8:20 pm
Nonstop3h 35m
$187
Las VegasChicago
LAS Las Vegas Harry Reid Intl - MDW Chicago Midway
LASMDW
Las Vegas Harry Reid Intl
Tue 11/3
10:45 am-5:20 pm
1 stop4h 35m
Chicago Midway
Sat 11/7
1:25 pm-4:35 pm
1 stop5h 10m
$197
Las VegasChicago
LAS Las Vegas Harry Reid Intl - RFD Chicago Greater Rockford
LASRFD
Las Vegas Harry Reid Intl
Thu 9/3
3:15 pm-8:39 pm
Nonstop3h 24m
Chicago Greater Rockford
Sun 9/6
9:29 pm-11:08 pm
Nonstop3h 39m
$198
Las VegasChicago
LAS Las Vegas Harry Reid Intl - ORD Chicago O'Hare Intl
LASORD
Las Vegas Harry Reid Intl
Thu 9/3
10:50 am-4:42 pm
Nonstop3h 52m
Chicago O'Hare Intl
Mon 9/7
8:45 pm-10:52 pm
Nonstop4h 07m
$203
Las VegasChicago
LAS Las Vegas Harry Reid Intl - RFD Chicago Greater Rockford
LASRFD
Las Vegas Harry Reid Intl
Thu 9/17
9:30 pm-6:11 pm
1 stop18h 41m
Chicago Greater Rockford
Sun 9/20
9:29 pm-11:08 pm
Nonstop3h 39m
$204
Las VegasChicago
LAS Las Vegas Harry Reid Intl - RFD Chicago Greater Rockford
LASRFD
Las Vegas Harry Reid Intl
Sun 9/13
3:15 pm-8:39 pm
Nonstop3h 24m
Chicago Greater Rockford
Sun 9/20
9:29 pm-11:08 pm
Nonstop3h 39m
$207
Las VegasChicago
LAS Las Vegas Harry Reid Intl - RFD Chicago Greater Rockford
LASRFD
Las Vegas Harry Reid Intl
Thu 10/22
2:10 pm-7:30 pm
Nonstop3h 20m
Chicago Greater Rockford
Sun 10/25
8:53 pm-10:36 pm
Nonstop3h 43m
$207
Las VegasChicago
LAS Las Vegas Harry Reid Intl - RFD Chicago Greater Rockford
LASRFD
Las Vegas Harry Reid Intl
Sun 8/30
3:18 pm-8:45 pm
Nonstop3h 27m
Chicago Greater Rockford
Sun 9/6
9:29 pm-11:08 pm
Nonstop3h 39m
$219
Las VegasChicago
LAS Las Vegas Harry Reid Intl - RFD Chicago Greater Rockford
LASRFD
Las Vegas Harry Reid Intl
Thu 9/17
3:15 pm-8:39 pm
Nonstop3h 24m
Chicago Greater Rockford
Sun 9/20
9:29 pm-11:08 pm
Nonstop3h 39m
$224
Las VegasChicago
LAS Las Vegas Harry Reid Intl - ORD Chicago O'Hare Intl
LASORD
Las Vegas Harry Reid Intl
Mon 8/31
1:17 pm-9:33 pm
1 stop6h 16m
Chicago O'Hare Intl
Thu 9/3
2:00 pm-6:14 pm
1 stop6h 14m
$250
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Las Vegas to Illinois
Have a flexible travel schedule? Discover the best time to fly to Illinois from Las Vegas with our price prediction graph.
LAS-STL
LAS-MLI
LAS-MDW
LAS-PIA
LAS-ORD
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Las Vegas to Illinois
LAS-USIL
LAS-STL
LAS-MLI
LAS-MDW
LAS-PIA
What is the cheapest month to book a flight from Las Vegas to Illinois?
Currently, October is the cheapest month in which you can book a flight from Las Vegas to Illinois (average of $229). Flying from Las Vegas to Illinois in July is currently the most expensive (average of $365). 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 LAS to IL?
Find hourly flight availability from Las Vegas 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 August 12, 2026.
When flying from Las Vegas to Illinois, the time of day you fly usually plays a role in the price. Save by searching for a flight in the afternoon, which can drop the price by up to 24% versus a flight in the evening.
Weekly flight availability from Las Vegas to Illinois
Explore weekly flight availability from Las Vegas 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 August 12, 2026.
The most flights from LAS to USIL are scheduled on a Monday (46 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (11 on average).
How much does it cost to fly round-trip from Las Vegas to Illinois?
Airfare is below average for this route at the moment.
Las Vegas to Illinois flights typically cost between $242 and $390 in September.The cheapest round-trip price found within the last 5 days was $186 on Frontier (Sep 4-Sep 6).
How far ahead should I book a flight from Las Vegas to Illinois?
The best time to book flights from Las Vegas to Illinois is 68 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
What is the cheapest day to fly from Las Vegas to Illinois?
Use this chart to determine the cheapest time to fly round-trip from Las Vegas to Illinois. Price data was last updated on August 8, 2026.
Travelers seeking maximum savings on their Las Vegas to Illinois flight should consider departing on Tuesday afternoons when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
Reviews of airlines servicing Illinois
Get insights into the airlines that provide service to Illinois. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Illinois. Reviews last updated August 12, 2026.
Get a feel of what it's like to fly with Southwest,United Airlines, andAllegiant Air from Las Vegas to Illinois by reading reviews from past customers. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Boarding
8.1
Food
7.0
Overall
8.0
Entertainment
7.5
Comfort
8.0
Crew
8.6
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Boarding
8.1
Food
7.0
Overall
8.0
Entertainment
7.5
Comfort
8.0
Crew
8.6
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Boarding
8.1
Food
7.0
Overall
8.0
Entertainment
7.5
Comfort
8.0
Crew
8.6
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Boarding
8.1
Food
7.0
Overall
8.0
Entertainment
7.5
Comfort
8.0
Crew
8.6
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Boarding
8.1
Food
7.0
Overall
8.0
Entertainment
7.5
Comfort
8.0
Crew
8.6
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Boarding
8.1
Food
7.0
Overall
8.0
Entertainment
7.5
Comfort
8.0
Crew
8.6
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Related info for your journey
Find useful and relevant information for your journey from Las Vegas to Illinois. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
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Alternative routes for Las Vegas 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 Las Vegas to Illinois by cabin class
Find flights from Las Vegas to Illinois, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Las Vegas and Illinois flights
Browse other Las Vegas and Illinois flight options. Last updated on August 12, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Las Vegas to Illinois flights
Consider these flights traveling from Las Vegas to Illinois.
Top 6 airlines flying from Las Vegas to Illinois
Discover the top 6 airlines that operate flights from Las Vegas 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 August 12, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$58 | Average$245 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$110 | Average$239 | FlexibilityNo cancel fee | On-time88% | |
| Cheapest$134 | Average$329 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$159 | Average$339 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$159 | Average$389 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$168 | Average$375 | FlexibilityNo cancel fee | On-time69% |