$78+ Cheap flights from Las Vegas (LAS) to Illinois
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/22. Fares are subject to change and may not be available on all flights or dates of travel.
LAS — ORD
Oct 23 — Oct 301
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
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
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 Las Vegas to Illinois
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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 September 23, 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 September 23, 2026.
This CheapOair deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/196:35 am -
Nonstop3h 12m
Sun 11/2212:37 pm -
Nonstop3h 46m
Deal found 9/23![Allegiant Air logo]()
$184
This Cheapflightsfares deal was found by Cheapflights users on 9/18. Clicking the “Pick Dates” 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.
Sat 10/109:00 am -
1 stop19h 34m
Wed 10/146:30 am -
1 stop19h 13m
Deal found 9/18![Frontier logo]()
$185
This Cheapflightsfares deal was found by Cheapflights users on 9/18. Clicking the “Pick Dates” 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 10/2311:29 pm -
Nonstop3h 47m
Mon 10/263:30 pm -
Nonstop4h 16m
Deal found 9/18![Frontier logo]()
$187
This Cheapflightsfares deal was found by Cheapflights users on 9/18. Clicking the “Pick Dates” 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 10/1510:52 am -
1 stop12h 07m
Wed 10/216:30 am -
1 stop19h 13m
Deal found 9/18![Frontier logo]()
$189
This Cheapflightsfares deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/216:30 am -
1 stop22h 04m
Wed 10/286:30 am -
1 stop9h 38m
Deal found 9/23![Frontier logo]()
$191
This Cheapflightsfares deal was found by Cheapflights users on 9/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/202:55 pm -
1 stop13h 39m
Tue 10/276:30 am -
1 stop28h 02m
Deal found 9/20![Frontier logo]()
$192
This Cheapflightsfares deal was found by Cheapflights users on 9/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/216:30 am -
1 stop22h 04m
Mon 10/263:30 pm -
Nonstop4h 16m
Deal found 9/22![Frontier logo]()
$195
This Cheapflightsfares deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/226:15 am -
1 stop22h 19m
Mon 10/266:30 am -
1 stop28h 02m
Deal found 9/21![Frontier logo]()
$196
This Mytrip deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/122:35 pm -
Nonstop3h 27m
Thu 11/1912:37 pm -
Nonstop3h 46m
Deal found 9/19![Allegiant Air logo]()
$196
This Trip.com deal was found by Cheapflights users on 9/18. Clicking the “Pick Dates” 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.
Thu 10/226:15 am -
1 stop22h 19m
Thu 10/295:15 pm -
Nonstop4h 21m
Deal found 9/18![Frontier logo]()
$197
This Cheapflightsfares deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/19:09 pm -
1 stop25h 44m
Sat 12/57:25 am -
1 stop18h 25m
Deal found 9/19![Frontier logo]()
$201
This Kiwi.com deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/229:55 pm -
1 stop11h 32m
Sun 10/258:53 pm -
Nonstop3h 43m
Deal found 9/23![Multiple Airlines logo]()
$202
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 September 23, 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 September 23, 2026.
This Mytrip deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/122:35 pm -
Nonstop3h 27m
Thu 11/1912:37 pm -
Nonstop3h 46m
Deal found 9/19![Allegiant Air logo]()
$196
This Kiwi.com deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/1511:56 am -
2 stops21h 31m
Sun 10/189:33 pm -
Nonstop3h 43m
Deal found 9/21![Multiple Airlines logo]()
$260
This United Airlines deal was found by Cheapflights users on 9/18. Clicking the “Pick Dates” 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 10/132:18 pm -
Nonstop3h 52m
Thu 10/226:20 pm -
Nonstop4h 08m
Deal found 9/18![United Airlines logo]()
$317
This Southwest deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/211:50 am -
Nonstop3h 35m
Wed 12/98:50 pm -
Nonstop4h 05m
Deal found 9/23![Southwest logo]()
$317
This Alaska Airlines deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/37:04 am -
1 stop9h 49m
Wed 10/77:20 am -
1 stop7h 13m
Deal found 9/21![Alaska Airlines logo]()
$343
This Delta deal was found by Cheapflights users on 9/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/3012:50 am -
1 stop7h 38m
Tue 12/226:00 am -
1 stop8h 20m
Deal found 9/22![Delta logo]()
$344
This Sun Country Air deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Sun Country Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/1911:59 pm -
1 stop16h 51m
Tue 12/296:40 pm -
1 stop24h 51m
Deal found 9/21![Sun Country Air logo]()
$360
This American Airlines deal was found by Cheapflights users on 9/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/206:00 am -
1 stop7h 22m
Sun 1/104:22 pm -
1 stop8h 21m
Deal found 9/22![American Airlines logo]()
$389
This Booking.com deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/12:53 pm -
Nonstop3h 20m
Sun 10/49:36 pm -
Nonstop3h 43m
Deal found 9/19![Allegiant Air logo]()
$213
This CheapOair deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/52:35 pm -
Nonstop3h 27m
Thu 11/1912:37 pm -
Nonstop3h 46m
Deal found 9/21![Allegiant Air logo]()
$225
This Kiwi.com deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/1410:06 pm -
2 stops12h 16m
Sun 10/189:33 pm -
Nonstop3h 43m
Deal found 9/23![Multiple Airlines logo]()
$278
This CheapOair deal was found by Cheapflights users on 9/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/157:00 am -
Nonstop3h 12m
Sun 10/252:37 pm -
Nonstop3h 40m
Deal found 9/20![Allegiant Air logo]()
$230
This Southwest deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/1612:10 am -
Nonstop3h 30m
Sat 10/247:10 pm -
Nonstop3h 55m
Deal found 9/19![Southwest logo]()
$317
This United Airlines deal was found by Cheapflights users on 9/18. Clicking the “Pick Dates” 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 10/104:38 pm -
Nonstop3h 51m
Wed 10/145:00 am -
1 stop5h 36m
Deal found 9/18![United Airlines logo]()
$327
This CheapOair deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair 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 9/23![Allegiant Air logo]()
$247
This Southwest deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/126:45 pm -
Nonstop3h 25m
Thu 11/198:50 pm -
Nonstop4h 10m
Deal found 9/19![Southwest logo]()
$317
This United Airlines deal was found by Cheapflights users on 9/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/149:00 am -
Nonstop3h 52m
Sat 10/175:00 am -
1 stop5h 36m
Deal found 9/22![United Airlines logo]()
$327
This Kiwi.com deal was found by Cheapflights users on 9/18. Clicking the “Pick Dates” 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
Thu 10/291:12 pm -
1 stop12h 47m
Deal found 9/18![Multiple Airlines logo]()
$340
This Alaska Airlines deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/110:32 am -
2 stops30h 28m
Tue 12/227:00 am -
1 stop6h 57m
Deal found 9/19![Alaska Airlines logo]()
$387
This Sun Country Air deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Sun Country Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/216:38 pm -
1 stop13h 45m
Sun 12/278:10 pm -
1 stop28h 39m
Deal found 9/23![Sun Country Air logo]()
$390
This Southwest deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/203:30 pm -
1 stop5h 15m
Mon 10/267:10 am -
Nonstop3h 55m
Deal found 9/19![Southwest logo]()
$323
This United Airlines deal was found by Cheapflights users on 9/18. Clicking the “Pick Dates” 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 11/34:11 pm -
Nonstop3h 49m
Tue 11/101:30 pm -
1 stop5h 48m
Deal found 9/18![United Airlines logo]()
$327
This Delta deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/810:34 pm -
1 stop7h 07m
Mon 10/125:30 pm -
1 stop8h 14m
Deal found 9/19![Delta logo]()
$402
This American Airlines deal was found by Cheapflights users on 9/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/612:20 am -
1 stop8h 31m
Sun 10/115:03 pm -
1 stop7h 52m
Deal found 9/22![American Airlines logo]()
$403
This Kiwi.com deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1110:06 pm -
2 stops12h 12m
Sun 11/158:37 pm -
Nonstop3h 46m
Deal found 9/23![Multiple Airlines logo]()
$345
This Southwest deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/2112:10 am -
Nonstop3h 30m
Thu 10/299:40 am -
1 stop5h 40m
Deal found 9/21![Southwest logo]()
$323
This United Airlines deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2711:00 am -
Nonstop3h 47m
Wed 10/281:30 pm -
1 stop5h 48m
Deal found 9/19![United Airlines logo]()
$327
This Alaska Airlines deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/107:01 am -
1 stop9h 52m
Wed 10/147:20 am -
2 stops14h 20m
Deal found 9/23![Alaska Airlines logo]()
$401
This American Airlines deal was found by Cheapflights users on 9/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/76:00 am -
1 stop7h 28m
Sun 10/115:00 am -
1 stop6h 01m
Deal found 9/22![American Airlines logo]()
$429
This Southwest deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/1910:10 pm -
1 stop5h 35m
Mon 10/268:25 pm -
Nonstop3h 55m
Deal found 9/23![Southwest logo]()
$327
Last-minute flights from Las Vegas to IllinoisDiscover last-minute flight deals from Las Vegas to Illinois. Data last updated September 23, 2026 and is based on user searches.
Discover last-minute flight deals from Las Vegas to Illinois. Data last updated September 23, 2026 and is based on user searches.
This Mytrip deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/82:53 pm -
Nonstop3h 20m
Sun 10/119:33 pm -
Nonstop3h 43m
Deal found 9/19![Allegiant Air logo]()
$204
This Cheapflightsfares deal was found by Cheapflights users on 9/18. Clicking the “Pick Dates” 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.
Sat 10/109:00 am -
1 stop19h 34m
Wed 10/146:30 am -
1 stop19h 13m
Deal found 9/18![Frontier logo]()
$185
This Cheapflightsfares deal was found by Cheapflights users on 9/18. Clicking the “Pick Dates” 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 10/1510:52 am -
1 stop12h 07m
Wed 10/216:30 am -
1 stop19h 13m
Deal found 9/18![Frontier logo]()
$189
This Kiwi.com deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/159:55 pm -
1 stop11h 32m
Sun 10/189:33 pm -
Nonstop3h 43m
Deal found 9/21![Multiple Airlines logo]()
$206
This Cheapflightsfares deal was found by Cheapflights users on 9/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/202:55 pm -
1 stop13h 39m
Tue 10/276:30 am -
1 stop28h 02m
Deal found 9/20![Frontier logo]()
$192
This Cheapflightsfares deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/216:30 am -
1 stop22h 04m
Wed 10/286:30 am -
1 stop9h 38m
Deal found 9/23![Frontier logo]()
$191
This Cheapflightsfares deal was found by Cheapflights users on 9/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/216:30 am -
1 stop22h 04m
Mon 10/263:30 pm -
Nonstop4h 16m
Deal found 9/22![Frontier logo]()
$195
This Cheapflightsfares deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/226:15 am -
1 stop22h 19m
Mon 10/266:30 am -
1 stop28h 02m
Deal found 9/21![Frontier logo]()
$196
This Trip.com deal was found by Cheapflights users on 9/18. Clicking the “Pick Dates” 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.
Thu 10/226:15 am -
1 stop22h 19m
Thu 10/295:15 pm -
Nonstop4h 21m
Deal found 9/18![Frontier logo]()
$197
This Kiwi.com deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/229:55 pm -
1 stop11h 32m
Sun 10/258:53 pm -
Nonstop3h 43m
Deal found 9/23![Multiple Airlines logo]()
$202
This Cheapflightsfares deal was found by Cheapflights users on 9/18. Clicking the “Pick Dates” 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 10/2311:29 pm -
Nonstop3h 47m
Mon 10/263:30 pm -
Nonstop4h 16m
Deal found 9/18![Frontier logo]()
$187
This Mytrip deal was found by Cheapflights users on 9/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/278:00 am -
2 stops14h 21m
Tue 11/36:30 am -
1 stop15h 16m
Deal found 9/18![Frontier logo]()
$202
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 September 23, 2026.
Search for one-way flight options from Las Vegas to Illinois. Find affordable one-way fares based on user searches. Data last updated September 23, 2026.
This CheapOair deal was found by Cheapflights users on 9/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/226:35 am -
Nonstop3h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/22![Allegiant Air logo]()
$78
This Super.com deal was found by Cheapflights users on 9/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/17:00 am -
Nonstop3h 12m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/20![Allegiant Air logo]()
$90
This Kiwi.com deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/169:55 pm -
1 stop13h 11m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/21![Multiple Airlines logo]()
$112
This CheapOair deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/47:30 am -
Nonstop3h 12m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/21![Allegiant Air logo]()
$121
This Cheapflightsfares deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/268:00 pm -
1 stop11h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/19![Frontier logo]()
$123
This Cheapflightsfares deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/1912:40 am -
1 stop11h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/19![Frontier logo]()
$123
This Frontier deal was found by Cheapflights users on 9/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/2111:26 pm -
Nonstop3h 44m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/20![Frontier logo]()
$124
This CheapOair deal was found by Cheapflights users on 9/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2012:40 am -
1 stop11h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/21![Frontier logo]()
$124
This iWofly deal was found by Cheapflights users on 9/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure iWofly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/611:29 pm -
Nonstop3h 44m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/22![Frontier logo]()
$125
This Frontier deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/2312:40 am -
1 stop11h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/23![Frontier logo]()
$125
This Super.com deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/1311:29 pm -
Nonstop3h 44m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/19![Frontier logo]()
$126
This CheapOair deal was found by Cheapflights users on 9/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/1312:40 am -
1 stop11h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/19![Frontier logo]()
$126
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 September 23, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $184 (CheapOair) |
One-way from | $78 (CheapOair) |
Popular in | March |
Cheapest in | April |
Average price | $300 |
Good round-trip deal | $310 or less |
Good one-way deal | $182 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 7,457,451 searches. Data last updated September 23, 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
Quickest round-trip
Las VegasMoline
LAS Las Vegas Harry Reid Intl - MLI Moline Quad-City
LASMLI
Las Vegas Harry Reid Intl
Thu 10/22
6:35 am-11:45 am
Nonstop3h 10m
Moline Quad-City
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$78
Las VegasPeoria
LAS Las Vegas Harry Reid Intl - PIA Greater Peoria
LASPIA
Las Vegas Harry Reid Intl
Thu 10/1
7:00 am-12:12 pm
Nonstop3h 12m
Greater Peoria
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$90
Las VegasPeoria
LAS Las Vegas Harry Reid Intl - PIA Greater Peoria
LASPIA
Las Vegas Harry Reid Intl
Sun 10/4
7:30 am-12:42 pm
Nonstop3h 12m
Greater Peoria
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$121
Las VegasChicago
LAS Las Vegas Harry Reid Intl - RFD Chicago Greater Rockford
LASRFD
Las Vegas Harry Reid Intl
Thu 10/1
2:53 pm-8:13 pm
Nonstop3h 20m
Chicago Greater Rockford
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$128
Las VegasChicago
LAS Las Vegas Harry Reid Intl - RFD Chicago Greater Rockford
LASRFD
Las Vegas Harry Reid Intl
Thu 10/8
2:53 pm-8:13 pm
Nonstop3h 20m
Chicago Greater Rockford
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$132
Las VegasChicago
LAS Las Vegas Harry Reid Intl - ORD Chicago O'Hare Intl
LASORD
Las Vegas Harry Reid Intl
Sat 12/12
6:00 am-4:47 pm
1 stop8h 47m
Chicago O'Hare Intl
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$139
Las VegasChicago
LAS Las Vegas Harry Reid Intl - RFD Chicago Greater Rockford
LASRFD
Las Vegas Harry Reid Intl
Wed 10/28
10:06 pm-7:54 am
1 stop31h 48m
Chicago Greater Rockford
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$157
Las VegasChicago
LAS Las Vegas Harry Reid Intl - ORD Chicago O'Hare Intl
LASORD
Las Vegas Harry Reid Intl
Mon 12/21
8:40 am-2:29 pm
Nonstop3h 49m
Chicago O'Hare Intl
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$159
Las VegasChicago
LAS Las Vegas Harry Reid Intl - MDW Chicago Midway
LASMDW
Las Vegas Harry Reid Intl
Fri 10/16
12:10 am-5:40 am
Nonstop3h 30m
Chicago Midway
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$159
Las VegasChicago
LAS Las Vegas Harry Reid Intl - ORD Chicago O'Hare Intl
LASORD
Las Vegas Harry Reid Intl
Thu 10/15
7:00 am-12:50 pm
Nonstop3h 50m
Chicago O'Hare Intl
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$159
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-MLI
LAS-ORD
LAS-RFD
LAS-MDW
LAS-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 Las Vegas to Illinois
LAS-USIL
LAS-MLI
LAS-ORD
LAS-RFD
LAS-MDW
What is the cheapest month to book a flight from Las Vegas to Illinois?
Currently, January is the cheapest month in which you can book a flight from Las Vegas to Illinois (average of $260). 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 September 23, 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 September 23, 2026.
The most flights from LAS to USIL are scheduled on a Tuesday (45 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (26 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 $205 and $385 in October.The cheapest round-trip price found within the last 5 days was $185 on Frontier (Oct 10-Oct 14).
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 September 19, 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 September 23, 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.
Food
7.0
Entertainment
7.5
Boarding
8.1
Crew
8.6
Comfort
8.0
Overall
8.0
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Food
7.0
Entertainment
7.5
Boarding
8.1
Crew
8.6
Comfort
8.0
Overall
8.0
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Food
7.0
Entertainment
7.5
Boarding
8.1
Crew
8.6
Comfort
8.0
Overall
8.0
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Food
7.0
Entertainment
7.5
Boarding
8.1
Crew
8.6
Comfort
8.0
Overall
8.0
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Food
7.0
Entertainment
7.5
Boarding
8.1
Crew
8.6
Comfort
8.0
Overall
8.0
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Food
7.0
Entertainment
7.5
Boarding
8.1
Crew
8.6
Comfort
8.0
Overall
8.0
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Related info for your journey
Find useful and relevant information for your journey from 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 September 23, 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 7,457,451 searches. Data last updated September 23, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$59 | Average$256 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$118 | Average$256 | FlexibilityNo cancel fee | On-time88% | |
| Cheapest$134 | Average$329 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$159 | Average$343 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$169 | Average$399 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$179 | Average$388 | FlexibilityNo cancel fee | On-time69% |