$92+ 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 7/14. Fares are subject to change and may not be available on all flights or dates of travel.
LAS — ORD
Jun 12 — Jun 191
Round-trip
1 adult, Economy
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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 May 13, 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 May 13, 2026.
This Cheapflightsfares deal was found by Cheapflights users on 5/12. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/37:05 am
LAS
- MLI
Nonstop3h 18m
Allegiant Air
Sun 9/61:13 pm
MLI
- LAS
Nonstop3h 24m
Allegiant Air
Deal found 5/12![Allegiant Air logo]()
$161
This Cheapflightsfares deal was found by Cheapflights users on 5/12. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/126:15 am
LAS
- ORD
1 stop12h 37m
Frontier
Mon 8/177:15 am
ORD
- LAS
Nonstop4h 03m
Frontier
Deal found 5/12![Frontier logo]()
$174
This Frontier deal was found by Cheapflights users on 5/11. 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.
Thu 8/1311:40 pm
LAS
- ORD
Nonstop3h 48m
Frontier
Wed 8/199:48 pm
ORD
- LAS
1 stop11h 22m
Frontier
Deal found 5/11![Frontier logo]()
$175
This Super.com deal was found by Cheapflights users on 5/9. 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.
Thu 7/211:20 pm
LAS
- ORD
Nonstop3h 47m
Frontier
Wed 7/87:15 am
ORD
- LAS
Nonstop4h 03m
Frontier
Deal found 5/9![Frontier logo]()
$176
This Cheapflightsfares deal was found by Cheapflights users on 5/10. 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.
Tue 7/711:40 pm
LAS
- ORD
Nonstop3h 48m
Frontier
Mon 7/137:15 am
ORD
- LAS
Nonstop4h 03m
Frontier
Deal found 5/10![Frontier logo]()
$177
This Frontier deal was found by Cheapflights users on 5/11. 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.
Wed 8/1211:40 pm
LAS
- ORD
Nonstop3h 48m
Frontier
Sun 8/167:15 am
ORD
- LAS
Nonstop4h 03m
Frontier
Deal found 5/11![Frontier logo]()
$178
This Kiwi.com deal was found by Cheapflights users on 5/11. 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.
Tue 6/2311:20 pm
LAS
- ORD
Nonstop3h 47m
Frontier
Thu 7/97:15 am
ORD
- LAS
Nonstop4h 03m
Frontier
Deal found 5/11![Frontier logo]()
$180
This Cheapflightsfares deal was found by Cheapflights users on 5/8. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/712:59 am
LAS
- ORD
1 stop17h 53m
Frontier
Wed 8/127:15 am
ORD
- LAS
Nonstop4h 03m
Frontier
Deal found 5/8![Frontier logo]()
$182
This Frontier deal was found by Cheapflights users on 5/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/1111:40 pm
LAS
- ORD
Nonstop3h 48m
Frontier
Mon 8/171:50 pm
ORD
- LAS
1 stop8h 46m
Frontier
Deal found 5/11![Frontier logo]()
$183
This Frontier deal was found by Cheapflights users on 5/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/1311:40 pm
LAS
- ORD
Nonstop3h 48m
Frontier
Sun 8/167:15 am
ORD
- LAS
Nonstop4h 03m
Frontier
Deal found 5/12![Frontier logo]()
$184
This Kiwi.com deal was found by Cheapflights users on 5/11. 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 8/1211:40 pm
LAS
- ORD
Nonstop3h 48m
Frontier
Sat 8/151:50 pm
ORD
- LAS
1 stop8h 46m
Frontier
Deal found 5/11![Frontier logo]()
$185
This Kiwi.com deal was found by Cheapflights users on 5/7. 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 8/122:28 pm
LAS
- ORD
1 stop8h 21m
Frontier
Fri 8/147:15 am
ORD
- LAS
Nonstop4h 03m
Frontier
Deal found 5/7![Frontier logo]()
$186
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 May 13, 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 May 13, 2026.
This Kiwi.com deal was found by Cheapflights users on 5/10. 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.
Thu 8/67:10 am
LAS
- RFD
Nonstop3h 24m
Allegiant Air
Thu 9/39:29 pm
RFD
- LAS
Nonstop3h 39m
Allegiant Air
Deal found 5/10![Allegiant Air logo]()
$239
This Southwest deal was found by Cheapflights users on 5/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/295:10 pm
LAS
- ORD
Nonstop3h 45m
Southwest
Mon 6/16:15 am
ORD
- LAS
Nonstop4h 00m
Southwest
Deal found 5/11![Southwest logo]()
$263
This Delta deal was found by Cheapflights users on 5/9. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/39:59 am
LAS
- MDW
1 stop6h 32m
Delta
Tue 7/79:19 am
MDW
- LAS
1 stop6h 16m
Delta
Deal found 5/9![Delta logo]()
$277
This Kiwi.com deal was found by Cheapflights users on 5/11. 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 7/307:00 am
LAS
- RFD
Nonstop3h 24m
Multiple Airlines
Sun 8/99:21 am
RFD
- LAS
2 stops10h 08m
Multiple Airlines
Deal found 5/11![Multiple Airlines logo]()
$290
This American Airlines deal was found by Cheapflights users on 5/8. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/1212:59 am
LAS
- PIA
1 stop6h 29m
American Airlines
Tue 6/167:11 pm
PIA
- LAS
1 stop6h 48m
American Airlines
Deal found 5/8![American Airlines logo]()
$299
This United Airlines deal was found by Cheapflights users on 5/9. 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.
Sat 7/112:25 pm
LAS
- ORD
Nonstop3h 56m
United Airlines
Tue 7/147:50 pm
ORD
- LAS
Nonstop4h 09m
United Airlines
Deal found 5/9![United Airlines logo]()
$307
This Kiwi.com deal was found by Cheapflights users on 5/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/156:34 pm
LAS
- STL
2 stops21h 03m
Frontier
Sun 7/192:52 pm
STL
- LAS
Nonstop3h 36m
Frontier
Deal found 5/12![Frontier logo]()
$311
This Southwest deal was found by Cheapflights users on 5/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/307:40 am
LAS
- MDW
1 stop4h 55m
Southwest
Tue 7/289:10 pm
MDW
- LAS
Nonstop3h 55m
Southwest
Deal found 5/12![Southwest logo]()
$267
This Alaska Airlines deal was found by Cheapflights users on 5/8. 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.
Tue 6/27:00 am
LAS
- STL
2 stops14h 54m
Alaska Airlines
Fri 6/195:37 pm
STL
- LAS
1 stop19h 42m
Alaska Airlines
Deal found 5/8![Alaska Airlines logo]()
$535
This Kiwi.com deal was found by Cheapflights users on 5/8. 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 7/167:00 am
LAS
- RFD
Nonstop3h 24m
Allegiant Air
Thu 7/231:14 pm
RFD
- LAS
Nonstop3h 39m
Allegiant Air
Deal found 5/8![Allegiant Air logo]()
$284
This Delta deal was found by Cheapflights users on 5/9. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/286:00 am
LAS
- MLI
1 stop8h 37m
Delta
Mon 6/15:17 pm
MLI
- LAS
1 stop7h 53m
Delta
Deal found 5/9![Delta logo]()
$300
This American Airlines deal was found by Cheapflights users on 5/9. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/2812:48 pm
LAS
- MLI
2 stops8h 42m
American Airlines
Mon 6/14:45 pm
MLI
- LAS
1 stop9h 07m
American Airlines
Deal found 5/9![American Airlines logo]()
$305
This United Airlines deal was found by Cheapflights users on 5/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/242:25 pm
LAS
- ORD
Nonstop3h 58m
United Airlines
Sun 6/2812:40 pm
ORD
- LAS
Nonstop4h 05m
United Airlines
Deal found 5/10![United Airlines logo]()
$307
This Kiwi.com deal was found by Cheapflights users on 5/11. 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 6/46:25 am
LAS
- MLI
Nonstop3h 14m
Allegiant Air
Sun 6/211:47 pm
MLI
- LAS
2 stops35h 42m
Allegiant Air
Deal found 5/11![Allegiant Air logo]()
$295
This Delta deal was found by Cheapflights users on 5/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/2411:41 am
LAS
- MLI
1 stop8h 53m
Delta
Sun 6/285:56 am
MLI
- LAS
1 stop8h 14m
Delta
Deal found 5/10![Delta logo]()
$300
This Southwest deal was found by Cheapflights users on 5/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/306:00 pm
LAS
- MDW
Nonstop3h 35m
Southwest
Tue 7/215:50 pm
MDW
- LAS
1 stop5h 00m
Southwest
Deal found 5/12![Southwest logo]()
$304
This United Airlines deal was found by Cheapflights users on 5/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/611:59 pm
LAS
- ORD
Nonstop3h 43m
United Airlines
Sat 6/133:54 pm
ORD
- LAS
Nonstop4h 03m
United Airlines
Deal found 5/10![United Airlines logo]()
$313
This Kiwi.com deal was found by Cheapflights users on 5/10. 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.
Sun 6/287:00 am
LAS
- RFD
Nonstop3h 23m
Allegiant Air
Sun 7/121:14 pm
RFD
- LAS
Nonstop3h 39m
Allegiant Air
Deal found 5/10![Allegiant Air logo]()
$308
This United Airlines deal was found by Cheapflights users on 5/8. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/511:30 pm
LAS
- ORD
Nonstop3h 41m
United Airlines
Tue 6/93:54 pm
ORD
- LAS
Nonstop4h 03m
United Airlines
Deal found 5/8![United Airlines logo]()
$317
This Southwest deal was found by Cheapflights users on 5/10. 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.
Wed 6/244:30 pm
LAS
- MDW
1 stop5h 35m
Southwest
Sun 6/285:00 am
MDW
- LAS
Nonstop3h 50m
Southwest
Deal found 5/10![Southwest logo]()
$317
This Delta deal was found by Cheapflights users on 5/9. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/29:32 am
LAS
- ORD
1 stop5h 30m
Delta
Sat 7/47:35 am
ORD
- LAS
1 stop6h 38m
Delta
Deal found 5/9![Delta logo]()
$327
This Booking.com deal was found by Cheapflights users on 5/8. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/27:00 am
LAS
- RFD
Nonstop3h 24m
Allegiant Air
Sun 7/51:14 pm
RFD
- LAS
Nonstop3h 39m
Allegiant Air
Deal found 5/8![Allegiant Air logo]()
$312
This Kiwi.com deal was found by Cheapflights users on 5/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/39:47 pm
LAS
- SPI
1 stop19h 54m
Multiple Airlines
Sat 7/118:21 pm
SPI
- LAS
2 stops19h 11m
Multiple Airlines
Deal found 5/12![Multiple Airlines logo]()
$421
This Southwest deal was found by Cheapflights users on 5/9. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/119:40 pm
LAS
- MDW
1 stop6h 05m
Southwest
Tue 7/149:10 pm
MDW
- LAS
Nonstop3h 55m
Southwest
Deal found 5/9![Southwest logo]()
$317
This Delta deal was found by Cheapflights users on 5/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/410:47 am
LAS
- BMI
1 stop9h 00m
Delta
Sat 7/114:14 pm
BMI
- LAS
1 stop6h 48m
Delta
Deal found 5/12![Delta logo]()
$329
This American Airlines deal was found by Cheapflights users on 5/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/263:38 pm
LAS
- BMI
1 stop6h 21m
American Airlines
Sat 5/304:22 pm
BMI
- LAS
1 stop8h 18m
American Airlines
Deal found 5/11![American Airlines logo]()
$399
This United Airlines deal was found by Cheapflights users on 5/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/307:00 am
LAS
- ORD
Nonstop3h 48m
United Airlines
Mon 6/17:50 pm
ORD
- LAS
Nonstop4h 09m
United Airlines
Deal found 5/10![United Airlines logo]()
$333
This Kiwi.com deal was found by Cheapflights users on 5/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/2411:46 pm
LAS
- STL
1 stop7h 09m
Frontier
Fri 5/298:08 pm
STL
- LAS
2 stops19h 22m
Frontier
Deal found 5/12![Frontier logo]()
$450
This Kiwi.com deal was found by Cheapflights users on 5/10. 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.
Thu 7/27:00 am
LAS
- RFD
Nonstop3h 24m
Allegiant Air
Sat 7/410:05 am
RFD
- LAS
1 stop15h 34m
Allegiant Air
Deal found 5/10![Allegiant Air logo]()
$323
This Southwest deal was found by Cheapflights users on 5/8. 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.
Fri 5/2911:55 pm
LAS
- MDW
Nonstop3h 30m
Southwest
Sun 5/315:10 am
MDW
- LAS
1 stop5h 55m
Southwest
Deal found 5/8![Southwest logo]()
$327
Last-minute flights from Las Vegas to IllinoisDiscover last-minute flight deals from Las Vegas to Illinois. Data last updated May 13, 2026 and is based on user searches.
Discover last-minute flight deals from Las Vegas to Illinois. Data last updated May 13, 2026 and is based on user searches.
This Cheapflightsfares deal was found by Cheapflights users on 5/12. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/38:59 pm
LAS
- ORD
1 stop21h 33m
Frontier
Tue 6/167:20 am
ORD
- LAS
Nonstop4h 16m
Frontier
Deal found 5/12![Frontier logo]()
$188
This Cheapflightsfares deal was found by Cheapflights users on 5/11. 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 6/46:25 am
LAS
- MLI
Nonstop3h 14m
Allegiant Air
Sun 6/2112:29 pm
MLI
- LAS
Nonstop3h 26m
Allegiant Air
Deal found 5/11![Allegiant Air logo]()
$193
This Trip.com deal was found by Cheapflights users on 5/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/1011:20 pm
LAS
- ORD
Nonstop3h 47m
Frontier
Sun 7/57:15 am
ORD
- LAS
Nonstop4h 03m
Frontier
Deal found 5/11![Frontier logo]()
$194
This Frontier deal was found by Cheapflights users on 5/9. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/1611:20 pm
LAS
- ORD
Nonstop3h 47m
Frontier
Mon 7/67:15 am
ORD
- LAS
Nonstop4h 03m
Frontier
Deal found 5/9![Frontier logo]()
$178
This Frontier deal was found by Cheapflights users on 5/9. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/1611:20 pm
LAS
- ORD
Nonstop3h 47m
Frontier
Fri 7/101:50 pm
ORD
- LAS
1 stop8h 46m
Frontier
Deal found 5/9![Frontier logo]()
$189
This Kiwi.com deal was found by Cheapflights users on 5/11. 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.
Tue 6/2311:20 pm
LAS
- ORD
Nonstop3h 47m
Frontier
Sat 7/117:15 am
ORD
- LAS
Nonstop4h 03m
Frontier
Deal found 5/11![Frontier logo]()
$175
This Kiwi.com deal was found by Cheapflights users on 5/11. 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.
Tue 6/2311:20 pm
LAS
- ORD
Nonstop3h 47m
Frontier
Thu 7/97:15 am
ORD
- LAS
Nonstop4h 03m
Frontier
Deal found 5/11![Frontier logo]()
$180
This Trip.com deal was found by Cheapflights users on 5/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/2311:20 pm
LAS
- ORD
Nonstop3h 47m
Multiple Airlines
Tue 6/306:20 am
ORD
- LAS
1 stop9h 38m
Multiple Airlines
Deal found 5/11![Multiple Airlines logo]()
$182
This Trip.com deal was found by Cheapflights users on 5/10. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/2311:20 pm
LAS
- ORD
Nonstop3h 47m
Frontier
Fri 6/269:48 pm
ORD
- LAS
1 stop21h 41m
Frontier
Deal found 5/10![Frontier logo]()
$186
This Kiwi.com deal was found by Cheapflights users on 5/11. 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.
Tue 6/2311:20 pm
LAS
- ORD
Nonstop3h 47m
Frontier
Fri 7/101:50 pm
ORD
- LAS
1 stop8h 46m
Frontier
Deal found 5/11![Frontier logo]()
$191
This Kiwi.com deal was found by Cheapflights users on 5/11. 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.
Fri 6/2612:59 am
LAS
- ORD
1 stop17h 44m
Frontier
Wed 7/87:15 am
ORD
- LAS
Nonstop4h 03m
Frontier
Deal found 5/11![Frontier logo]()
$196
This Frontier deal was found by Cheapflights users on 5/8. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/299:24 pm
LAS
- ORD
1 stop21h 19m
Frontier
Wed 7/87:15 am
ORD
- LAS
Nonstop4h 03m
Frontier
Deal found 5/8![Frontier logo]()
$190
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 May 13, 2026.
Search for one-way flight options from Las Vegas to Illinois. Find affordable one-way fares based on user searches. Data last updated May 13, 2026.
This Super.com deal was found by Cheapflights users on 5/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/146:00 am
LAS
- STL
1 stop6h 49m
Frontier
Deal found 5/12![Frontier logo]()
$92
This Trip.com deal was found by Cheapflights users on 5/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/1612:59 am
LAS
- STL
1 stop16h 24m
Frontier
Deal found 5/13![Frontier logo]()
$93
This Kiwi.com deal was found by Cheapflights users on 5/8. 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.
Tue 6/96:45 am
LAS
- STL
1 stop8h 45m
Frontier
Deal found 5/8![Frontier logo]()
$94
This Kiwi.com deal was found by Cheapflights users on 5/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/87:25 am
LAS
- STL
2 stops32h 12m
Frontier
Deal found 5/12![Frontier logo]()
$95
This Super.com deal was found by Cheapflights users on 5/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/610:30 am
LAS
- STL
1 stop6h 53m
Frontier
Deal found 5/12![Frontier logo]()
$99
This Kiwi.com deal was found by Cheapflights users on 5/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/112:29 am
LAS
- STL
1 stop16h 54m
Frontier
Deal found 5/12![Frontier logo]()
$100
This Super.com deal was found by Cheapflights users on 5/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/246:15 am
LAS
- MLI
Nonstop3h 15m
Allegiant Air
Deal found 5/12![Allegiant Air logo]()
$101
This Cheapflightsfares deal was found by Cheapflights users on 5/11. 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.
Tue 8/182:48 pm
LAS
- ORD
1 stop7h 54m
Frontier
Deal found 5/11![Frontier logo]()
$104
This Super.com deal was found by Cheapflights users on 5/9. 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.
Tue 8/411:53 pm
LAS
- MDW
1 stop9h 14m
Frontier
Deal found 5/9![Frontier logo]()
$104
This Trip.com deal was found by Cheapflights users on 5/10. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/246:34 pm
LAS
- STL
1 stop22h 19m
Frontier
Deal found 5/10![Frontier logo]()
$104
This Frontier deal was found by Cheapflights users on 5/8. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/149:15 am
LAS
- ORD
1 stop11h 50m
Frontier
Deal found 5/8![Frontier logo]()
$105
This Frontier deal was found by Cheapflights users on 5/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/1811:59 pm
LAS
- MDW
1 stop9h 10m
Frontier
Deal found 5/12![Frontier logo]()
$105
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 May 13, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $174 (Cheapflightsfares) |
One-way from | $92 (Super.com) |
Popular in | March |
Cheapest in | September |
Average price | $306 |
Good round-trip deal | $110 or less |
Good one-way deal | $98 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 May 13, 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 VegasChicago
LAS - RFD
LASRFD
Las Vegas Harry Reid Intl
Thu 8/6
7:10 am-12:34 pm
Nonstop3h 24m
Chicago Greater Rockford
Thu 9/3
9:29 pm-11:08 pm
Nonstop3h 39m
$239
Las VegasChicago
LAS - ORD
LASORD
Las Vegas Harry Reid Intl
Fri 5/29
5:10 pm-10:55 pm
Nonstop3h 45m
Chicago O'Hare Intl
Mon 6/1
6:15 am-8:15 am
Nonstop4h 00m
$263
Las VegasChicago
LAS - MDW
LASMDW
Las Vegas Harry Reid Intl
Tue 6/30
7:40 am-2:35 pm
1 stop4h 55m
Chicago Midway
Tue 7/28
9:10 pm-11:05 pm
Nonstop3h 55m
$267
Las VegasChicago
LAS - MDW
LASMDW
Las Vegas Harry Reid Intl
Fri 7/3
9:59 am-6:31 pm
1 stop6h 32m
Chicago Midway
Tue 7/7
9:19 am-1:35 pm
1 stop6h 16m
$277
Las VegasChicago
LAS - RFD
LASRFD
Las Vegas Harry Reid Intl
Thu 7/16
7:00 am-12:24 pm
Nonstop3h 24m
Chicago Greater Rockford
Thu 7/23
1:14 pm-2:53 pm
Nonstop3h 39m
$284
Las VegasChicago
LAS - RFD
LASRFD
Las Vegas Harry Reid Intl
Thu 7/30
7:00 am-12:24 pm
Nonstop3h 24m
Chicago Greater Rockford
Sun 8/9
9:21 am-5:29 pm
2 stops10h 08m
$290
Las VegasMoline
LAS - MLI
LASMLI
Las Vegas Harry Reid Intl
Thu 6/4
6:25 am-11:39 am
Nonstop3h 14m
Moline Quad-City
Sun 6/21
1:47 pm-11:29 pm
2 stops35h 42m
$295
Las VegasPeoria
LAS - PIA
LASPIA
Las Vegas Harry Reid Intl
Fri 6/12
12:59 am-9:28 am
1 stop6h 29m
Greater Peoria
Tue 6/16
7:11 pm-11:59 pm
1 stop6h 48m
$299
Las VegasMoline
LAS - MLI
LASMLI
Las Vegas Harry Reid Intl
Thu 5/28
6:00 am-4:37 pm
1 stop8h 37m
Moline Quad-City
Mon 6/1
5:17 pm-11:10 pm
1 stop7h 53m
$300
Las VegasMoline
LAS - MLI
LASMLI
Las Vegas Harry Reid Intl
Wed 6/24
11:41 am-10:34 pm
1 stop8h 53m
Moline Quad-City
Sun 6/28
5:56 am-12:10 pm
1 stop8h 14m
$300
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-RFD
LAS-ORD
LAS-MDW
LAS-PIA
LAS-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 Las Vegas to Illinois
LAS-USIL
LAS-RFD
LAS-ORD
LAS-MDW
LAS-PIA
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 83 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 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 $29). Flying from Las Vegas to Illinois in June is currently the most expensive (average of $91). 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 May 13, 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 29% versus a flight at noon.
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 May 9, 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.
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 May 13, 2026.
The most flights from LAS to USIL are scheduled on a Monday (52 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (39 on average).
How much does it cost to fly round-trip from Las Vegas to Illinois?
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 May 13, 2026.
Get a feel of what it's like to fly with Southwest,United Airlines, andAmerican Airlines 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
Boarding
8.1
Comfort
8.0
Entertainment
7.5
Crew
8.6
Overall
8.0
Reviews
1 / 20
8.0
ExcellentGina,Jul 2025
LAS - DEN
Food
7.0
Boarding
8.1
Comfort
8.0
Entertainment
7.5
Crew
8.6
Overall
8.0
Reviews
1 / 20
8.0
ExcellentGina,Jul 2025
LAS - DEN
Food
7.0
Boarding
8.1
Comfort
8.0
Entertainment
7.5
Crew
8.6
Overall
8.0
Reviews
1 / 20
8.0
ExcellentGina,Jul 2025
LAS - DEN
Food
7.0
Boarding
8.1
Comfort
8.0
Entertainment
7.5
Crew
8.6
Overall
8.0
Reviews
1 / 20
8.0
ExcellentGina,Jul 2025
LAS - DEN
Food
7.0
Boarding
8.1
Comfort
8.0
Entertainment
7.5
Crew
8.6
Overall
8.0
Reviews
1 / 20
8.0
ExcellentGina,Jul 2025
LAS - DEN
Food
7.0
Boarding
8.1
Comfort
8.0
Entertainment
7.5
Crew
8.6
Overall
8.0
Reviews
1 / 20
8.0
ExcellentGina,Jul 2025
LAS - DEN
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 May 13, 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 7 airlines flying from Las Vegas to Illinois
Discover the top 7 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 May 13, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$43 | Average$225 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$60 | Average$169 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$100 | Average$225 | FlexibilityNo cancel fee | On-time88% | |
| Cheapest$134 | Average$327 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$158 | Average$405 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$159 | Average$310 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$159 | Average$375 | FlexibilityNo cancel fee | On-time71% |