$79+ 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 4/22. Fares are subject to change and may not be available on all flights or dates of travel.
LAS — ORD
Apr 28 — May 51
Round-trip
1 adult, Economy
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Find cheap flights from Las Vegas to Illinois with Cheapflights
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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 March 29, 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 March 29, 2026.
This Cheapflightsfares deal was found by Cheapflights users on 3/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/66:25 am
LAS
- MLI
Nonstop3h 16m
Allegiant Air
Sun 8/912:31 pm
MLI
- LAS
Nonstop3h 32m
Allegiant Air
Deal found 3/28![Allegiant Air logo]()
$129
This Cheapflightsfares deal was found by Cheapflights users on 3/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/2212:20 am
LAS
- ORD
Nonstop3h 48m
Frontier
Thu 4/305:20 am
ORD
- LAS
1 stop18h 44m
Frontier
Deal found 3/26![Frontier logo]()
$141
This CheapOair deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/1612:20 am
LAS
- ORD
Nonstop3h 48m
Multiple Airlines
Sun 4/1910:07 pm
ORD
- LAS
Nonstop3h 52m
Multiple Airlines
Deal found 3/27![Multiple Airlines logo]()
$142
This Cheapflightsfares deal was found by Cheapflights users on 3/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/2112:20 am
LAS
- ORD
Nonstop3h 48m
Frontier
Wed 4/228:58 pm
ORD
- LAS
Nonstop4h 27m
Frontier
Deal found 3/26![Frontier logo]()
$143
This Cheapflightsfares deal was found by Cheapflights users on 3/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/1711:51 pm
LAS
- ORD
Nonstop3h 34m
Spirit Airlines
Mon 4/2010:07 pm
ORD
- LAS
Nonstop3h 52m
Spirit Airlines
Deal found 3/28![Spirit Airlines logo]()
$144
This Cheapflightsfares deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/1312:32 am
LAS
- ORD
Nonstop3h 48m
Frontier
Sun 5/310:50 am
ORD
- LAS
1 stop11h 21m
Frontier
Deal found 3/27![Frontier logo]()
$145
This Cheapflightsfares deal was found by Cheapflights users on 3/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/162:59 pm
LAS
- ORD
1 stop6h 28m
Spirit Airlines
Sat 4/1810:07 pm
ORD
- LAS
Nonstop3h 52m
Spirit Airlines
Deal found 3/28![Spirit Airlines logo]()
$146
This Super.com deal was found by Cheapflights users on 3/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/1312:32 am
LAS
- ORD
Nonstop3h 48m
Frontier
Sat 4/188:58 pm
ORD
- LAS
Nonstop4h 27m
Frontier
Deal found 3/24![Frontier logo]()
$147
This Cheapflightsfares deal was found by Cheapflights users on 3/25. Clicking the “Pick Dates” 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 4/1612:20 am
LAS
- ORD
Nonstop3h 48m
Frontier
Sun 4/198:58 pm
ORD
- LAS
Nonstop4h 27m
Frontier
Deal found 3/25![Frontier logo]()
$148
This CheapOair deal was found by Cheapflights users on 3/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/1511:51 pm
LAS
- ORD
Nonstop3h 34m
Multiple Airlines
Fri 4/1710:55 am
ORD
- LAS
1 stop23h 38m
Multiple Airlines
Deal found 3/28![Multiple Airlines logo]()
$149
This Super.com deal was found by Cheapflights users on 3/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/2112:20 am
LAS
- ORD
Nonstop3h 48m
Frontier
Fri 4/247:21 pm
ORD
- LAS
1 stop25h 07m
Frontier
Deal found 3/28![Frontier logo]()
$150
This Expedia deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/2911:51 pm
LAS
- ORD
Nonstop3h 34m
Multiple Airlines
Fri 5/155:30 pm
ORD
- LAS
1 stop19h 44m
Multiple Airlines
Deal found 3/27![Multiple Airlines logo]()
$151
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 March 29, 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 March 29, 2026.
This Booking.com deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/217:00 am
LAS
- RFD
Nonstop3h 21m
Allegiant Air
Sun 5/241:11 pm
RFD
- LAS
Nonstop3h 41m
Allegiant Air
Deal found 3/27![Allegiant Air logo]()
$171
This United Airlines deal was found by Cheapflights users on 3/24. Clicking the “Pick Dates” 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 5/2611:30 pm
LAS
- ORD
Nonstop3h 41m
United Airlines
Wed 6/33:54 pm
ORD
- LAS
Nonstop4h 04m
United Airlines
Deal found 3/24![United Airlines logo]()
$225
This Southwest deal was found by Cheapflights users on 3/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/2211:55 pm
LAS
- MDW
Nonstop3h 30m
Southwest
Mon 4/276:25 pm
MDW
- LAS
Nonstop3h 55m
Southwest
Deal found 3/26![Southwest logo]()
$229
This Delta deal was found by Cheapflights users on 3/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/2112:40 am
LAS
- MDW
1 stop6h 06m
Delta
Wed 4/221:24 pm
MDW
- LAS
1 stop6h 33m
Delta
Deal found 3/26![Delta logo]()
$245
This American Airlines deal was found by Cheapflights users on 3/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/2811:51 am
LAS
- BMI
2 stops10h 01m
American Airlines
Tue 5/53:45 pm
BMI
- LAS
1 stop7h 13m
American Airlines
Deal found 3/28![American Airlines logo]()
$296
This Alaska Airlines deal was found by Cheapflights users on 3/25. Clicking the “Pick Dates” 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 7/107:59 am
LAS
- ORD
1 stop9h 01m
Alaska Airlines
Mon 8/37:59 pm
ORD
- LAS
1 stop16h 32m
Alaska Airlines
Deal found 3/25![Alaska Airlines logo]()
$307
This Kiwi.com deal was found by Cheapflights users on 3/24. Clicking the “Pick Dates” 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 7/237:00 am
LAS
- RFD
Nonstop3h 24m
Multiple Airlines
Fri 7/249:13 pm
RFD
- LAS
1 stop13h 45m
Multiple Airlines
Deal found 3/24![Multiple Airlines logo]()
$321
This Southwest deal was found by Cheapflights users on 3/24. Clicking the “Pick Dates” 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 5/1211:55 pm
LAS
- MDW
Nonstop3h 30m
Southwest
Sat 5/161:00 pm
MDW
- LAS
Nonstop3h 55m
Southwest
Deal found 3/24![Southwest logo]()
$229
This Kiwi.com deal was found by Cheapflights users on 3/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/17:35 am
LAS
- PIA
Nonstop3h 08m
Allegiant Air
Mon 5/41:33 pm
PIA
- LAS
Nonstop3h 37m
Allegiant Air
Deal found 3/26![Allegiant Air logo]()
$232
This Southwest deal was found by Cheapflights users on 3/25. Clicking the “Pick Dates” 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 4/305:30 am
LAS
- MDW
Nonstop3h 30m
Southwest
Sat 5/26:25 pm
MDW
- LAS
Nonstop3h 55m
Southwest
Deal found 3/25![Southwest logo]()
$233
This Kiwi.com deal was found by Cheapflights users on 3/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/237:00 am
LAS
- RFD
Nonstop3h 24m
Allegiant Air
Sun 7/261:14 pm
RFD
- LAS
Nonstop3h 39m
Allegiant Air
Deal found 3/26![Allegiant Air logo]()
$238
This Delta deal was found by Cheapflights users on 3/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/1310:22 am
LAS
- STL
1 stop6h 41m
Delta
Sat 5/1611:25 am
STL
- LAS
1 stop7h 39m
Delta
Deal found 3/26![Delta logo]()
$271
This Southwest deal was found by Cheapflights users on 3/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/1611:55 pm
LAS
- MDW
Nonstop3h 30m
Southwest
Mon 4/2010:20 am
MDW
- LAS
1 stop5h 20m
Southwest
Deal found 3/26![Southwest logo]()
$239
This Kiwi.com deal was found by Cheapflights users on 3/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/273:18 pm
LAS
- RFD
Nonstop3h 27m
Allegiant Air
Sun 8/309:35 pm
RFD
- LAS
Nonstop3h 46m
Allegiant Air
Deal found 3/26![Allegiant Air logo]()
$248
This Southwest deal was found by Cheapflights users on 3/24. Clicking the “Pick Dates” 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 5/25:45 am
LAS
- MDW
Nonstop3h 30m
Southwest
Sat 5/910:05 am
MDW
- LAS
1 stop5h 10m
Southwest
Deal found 3/24![Southwest logo]()
$239
This Delta deal was found by Cheapflights users on 3/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/2812:00 pm
LAS
- BMI
1 stop8h 21m
Delta
Tue 5/54:20 pm
BMI
- LAS
1 stop8h 42m
Delta
Deal found 3/28![Delta logo]()
$291
This American Airlines deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/1311:50 pm
LAS
- PIA
1 stop7h 25m
American Airlines
Tue 6/164:46 pm
PIA
- LAS
1 stop7h 54m
American Airlines
Deal found 3/27![American Airlines logo]()
$324
This United Airlines deal was found by Cheapflights users on 3/24. Clicking the “Pick Dates” 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 5/25:00 pm
LAS
- ORD
Nonstop3h 47m
United Airlines
Tue 5/54:15 pm
ORD
- LAS
Nonstop4h 13m
United Airlines
Deal found 3/24![United Airlines logo]()
$329
This Kiwi.com deal was found by Cheapflights users on 3/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/273:18 pm
LAS
- RFD
Nonstop3h 27m
Multiple Airlines
Sun 8/303:59 pm
RFD
- LAS
1 stop7h 29m
Multiple Airlines
Deal found 3/29![Multiple Airlines logo]()
$335
This Booking.com deal was found by Cheapflights users on 3/24. Clicking the “Pick Dates” 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 5/287:00 am
LAS
- RFD
Nonstop3h 21m
Allegiant Air
Sun 5/311:11 pm
RFD
- LAS
Nonstop3h 41m
Allegiant Air
Deal found 3/24![Allegiant Air logo]()
$253
This Southwest deal was found by Cheapflights users on 3/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/166:20 pm
LAS
- MDW
Nonstop3h 35m
Southwest
Sat 4/252:30 pm
MDW
- LAS
1 stop6h 25m
Southwest
Deal found 3/26![Southwest logo]()
$243
This United Airlines deal was found by Cheapflights users on 3/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/127:05 am
LAS
- STL
2 stops11h 38m
United Airlines
Tue 5/197:45 am
STL
- LAS
1 stop9h 34m
United Airlines
Deal found 3/26![United Airlines logo]()
$340
This Kiwi.com deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/147:00 am
LAS
- RFD
Nonstop3h 23m
Allegiant Air
Sun 7/51:14 pm
RFD
- LAS
Nonstop3h 39m
Allegiant Air
Deal found 3/27![Allegiant Air logo]()
$257
This Delta deal was found by Cheapflights users on 3/24. Clicking the “Pick Dates” 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 4/2212:40 am
LAS
- STL
1 stop6h 06m
Delta
Thu 4/236:45 pm
STL
- LAS
1 stop6h 52m
Delta
Deal found 3/24![Delta logo]()
$319
This Southwest deal was found by Cheapflights users on 3/24. Clicking the “Pick Dates” 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 4/239:55 pm
LAS
- MDW
1 stop5h 05m
Southwest
Sat 4/256:00 pm
MDW
- LAS
1 stop5h 50m
Southwest
Deal found 3/24![Southwest logo]()
$253
This United Airlines deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/1411:22 pm
LAS
- BMI
1 stop7h 28m
United Airlines
Mon 5/186:51 pm
BMI
- LAS
1 stop7h 08m
United Airlines
Deal found 3/27![United Airlines logo]()
$349
This Delta deal was found by Cheapflights users on 3/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/1312:35 am
LAS
- STL
1 stop6h 11m
Delta
Tue 5/197:59 pm
STL
- LAS
1 stop5h 44m
Delta
Deal found 3/26![Delta logo]()
$332
This American Airlines deal was found by Cheapflights users on 3/24. Clicking the “Pick Dates” 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 4/96:00 am
LAS
- BMI
1 stop6h 16m
American Airlines
Mon 4/132:46 pm
BMI
- LAS
2 stops9h 06m
American Airlines
Deal found 3/24![American Airlines logo]()
$404
This Southwest deal was found by Cheapflights users on 3/25. Clicking the “Pick Dates” 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 4/165:00 am
LAS
- ORD
1 stop6h 15m
Southwest
Sat 4/182:05 pm
ORD
- LAS
2 stops9h 05m
Southwest
Deal found 3/25![Southwest logo]()
$258
This Trip.com deal was found by Cheapflights users on 3/25. Clicking the “Pick Dates” 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 4/96:40 am
LAS
- RFD
Nonstop3h 20m
Allegiant Air
Sun 4/1212:50 pm
RFD
- LAS
Nonstop3h 49m
Allegiant Air
Deal found 3/25![Allegiant Air logo]()
$294
Last-minute flights from Las Vegas to IllinoisDiscover last-minute flight deals from Las Vegas to Illinois. Data last updated March 29, 2026 and is based on user searches.
Discover last-minute flight deals from Las Vegas to Illinois. Data last updated March 29, 2026 and is based on user searches.
This Cheapflightsfares deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/1312:32 am
LAS
- ORD
Nonstop3h 48m
Frontier
Sun 5/310:50 am
ORD
- LAS
1 stop11h 21m
Frontier
Deal found 3/27![Frontier logo]()
$145
This Super.com deal was found by Cheapflights users on 3/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/1312:32 am
LAS
- ORD
Nonstop3h 48m
Frontier
Sat 4/188:58 pm
ORD
- LAS
Nonstop4h 27m
Frontier
Deal found 3/24![Frontier logo]()
$147
This CheapOair deal was found by Cheapflights users on 3/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/1511:51 pm
LAS
- ORD
Nonstop3h 34m
Multiple Airlines
Fri 4/1710:55 am
ORD
- LAS
1 stop23h 38m
Multiple Airlines
Deal found 3/28![Multiple Airlines logo]()
$149
This CheapOair deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/1612:20 am
LAS
- ORD
Nonstop3h 48m
Multiple Airlines
Sun 4/1910:07 pm
ORD
- LAS
Nonstop3h 52m
Multiple Airlines
Deal found 3/27![Multiple Airlines logo]()
$142
This Cheapflightsfares deal was found by Cheapflights users on 3/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/162:59 pm
LAS
- ORD
1 stop6h 28m
Spirit Airlines
Sat 4/1810:07 pm
ORD
- LAS
Nonstop3h 52m
Spirit Airlines
Deal found 3/28![Spirit Airlines logo]()
$146
This Cheapflightsfares deal was found by Cheapflights users on 3/25. Clicking the “Pick Dates” 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 4/1612:20 am
LAS
- ORD
Nonstop3h 48m
Frontier
Sun 4/198:58 pm
ORD
- LAS
Nonstop4h 27m
Frontier
Deal found 3/25![Frontier logo]()
$148
This CheapOair deal was found by Cheapflights users on 3/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/1610:52 pm
LAS
- ORD
1 stop9h 31m
Multiple Airlines
Sat 4/188:58 pm
ORD
- LAS
Nonstop4h 27m
Multiple Airlines
Deal found 3/29![Multiple Airlines logo]()
$152
This Cheapflightsfares deal was found by Cheapflights users on 3/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/1711:51 pm
LAS
- ORD
Nonstop3h 34m
Spirit Airlines
Mon 4/2010:07 pm
ORD
- LAS
Nonstop3h 52m
Spirit Airlines
Deal found 3/28![Spirit Airlines logo]()
$144
This Cheapflightsfares deal was found by Cheapflights users on 3/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/2112:20 am
LAS
- ORD
Nonstop3h 48m
Frontier
Wed 4/228:58 pm
ORD
- LAS
Nonstop4h 27m
Frontier
Deal found 3/26![Frontier logo]()
$143
This Super.com deal was found by Cheapflights users on 3/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/2112:20 am
LAS
- ORD
Nonstop3h 48m
Frontier
Fri 4/247:21 pm
ORD
- LAS
1 stop25h 07m
Frontier
Deal found 3/28![Frontier logo]()
$150
This Kiwi.com deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/2212:20 am
LAS
- ORD
Nonstop3h 48m
Multiple Airlines
Wed 4/2911:28 am
ORD
- LAS
1 stop10h 04m
Multiple Airlines
Deal found 3/27![Multiple Airlines logo]()
$141
This Expedia deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/2911:51 pm
LAS
- ORD
Nonstop3h 34m
Multiple Airlines
Fri 5/155:30 pm
ORD
- LAS
1 stop19h 44m
Multiple Airlines
Deal found 3/27![Multiple Airlines logo]()
$151
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 March 29, 2026.
Search for one-way flight options from Las Vegas to Illinois. Find affordable one-way fares based on user searches. Data last updated March 29, 2026.
This Super.com deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/2211:35 pm
LAS
- STL
1 stop8h 55m
Frontier
Deal found 3/27![Frontier logo]()
$79
This Cheapflightsfares deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/246:00 am
LAS
- STL
1 stop6h 48m
Frontier
Deal found 3/27![Frontier logo]()
$80
This Super.com deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/16:00 am
LAS
- STL
Nonstop3h 22m
Frontier
Deal found 3/27![Frontier logo]()
$83
This Frontier deal was found by Cheapflights users on 3/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/2612:39 pm
LAS
- STL
Nonstop3h 27m
Frontier
Deal found 3/29![Frontier logo]()
$84
This Super.com deal was found by Cheapflights users on 3/25. Clicking the “Pick Dates” 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 4/2412:59 am
LAS
- STL
1 stop16h 33m
Frontier
Deal found 3/25![Frontier logo]()
$85
This Frontier deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/236:30 am
LAS
- STL
1 stop10h 53m
Frontier
Deal found 3/27![Frontier logo]()
$86
This Kiwi.com deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/2911:35 pm
LAS
- STL
1 stop8h 51m
Frontier
Deal found 3/27![Frontier logo]()
$88
This Booking.com deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/173:45 pm
LAS
- STL
Nonstop3h 25m
Frontier
Deal found 3/27![Frontier logo]()
$89
This Kiwi.com deal was found by Cheapflights users on 3/25. Clicking the “Pick Dates” 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 5/272:49 pm
LAS
- STL
1 stop26h 34m
Frontier
Deal found 3/25![Frontier logo]()
$91
This Kiwi.com deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/2811:54 pm
LAS
- STL
1 stop21h 25m
Frontier
Deal found 3/27![Frontier logo]()
$93
This Kiwi.com deal was found by Cheapflights users on 3/25. Clicking the “Pick Dates” 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 6/912:59 am
LAS
- STL
1 stop16h 24m
Frontier
Deal found 3/25![Frontier logo]()
$95
This Cheapflightsfares deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/1810:00 am
LAS
- STL
Nonstop3h 21m
Frontier
Deal found 3/27![Frontier logo]()
$99
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 March 29, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $129 (Cheapflightsfares) |
One-way from | $79 (Super.com) |
Popular in | March |
Cheapest in | September |
Average price | $332 |
Good round-trip deal | $207 or less |
Good one-way deal | $158 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 March 29, 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 5/21
7:00 am-12:21 pm
Nonstop3h 21m
Chicago Greater Rockford
Sun 5/24
1:11 pm-2:52 pm
Nonstop3h 41m
$171
Las VegasChicago
LAS - ORD
LASORD
Las Vegas Harry Reid Intl
Tue 5/26
11:30 pm-5:11 am
Nonstop3h 41m
Chicago O'Hare Intl
Wed 6/3
3:54 pm-5:58 pm
Nonstop4h 04m
$225
Las VegasChicago
LAS - MDW
LASMDW
Las Vegas Harry Reid Intl
Wed 4/22
11:55 pm-5:25 am
Nonstop3h 30m
Chicago Midway
Mon 4/27
6:25 pm-8:20 pm
Nonstop3h 55m
$229
Las VegasChicago
LAS - MDW
LASMDW
Las Vegas Harry Reid Intl
Tue 5/12
11:55 pm-5:25 am
Nonstop3h 30m
Chicago Midway
Sat 5/16
1:00 pm-2:55 pm
Nonstop3h 55m
$229
Quickest round-trip
Las VegasPeoria
LAS - PIA
LASPIA
Las Vegas Harry Reid Intl
Fri 5/1
7:35 am-12:43 pm
Nonstop3h 08m
Greater Peoria
Mon 5/4
1:33 pm-3:10 pm
Nonstop3h 37m
$232
Las VegasChicago
LAS - MDW
LASMDW
Las Vegas Harry Reid Intl
Thu 4/30
5:30 am-11:00 am
Nonstop3h 30m
Chicago Midway
Sat 5/2
6:25 pm-8:20 pm
Nonstop3h 55m
$233
Las VegasChicago
LAS - RFD
LASRFD
Las Vegas Harry Reid Intl
Thu 7/23
7:00 am-12:24 pm
Nonstop3h 24m
Chicago Greater Rockford
Sun 7/26
1:14 pm-2:53 pm
Nonstop3h 39m
$238
Las VegasChicago
LAS - MDW
LASMDW
Las Vegas Harry Reid Intl
Thu 4/16
11:55 pm-5:25 am
Nonstop3h 30m
Chicago Midway
Mon 4/20
10:20 am-1:40 pm
1 stop5h 20m
$239
Las VegasChicago
LAS - MDW
LASMDW
Las Vegas Harry Reid Intl
Sat 5/2
5:45 am-11:15 am
Nonstop3h 30m
Chicago Midway
Sat 5/9
10:05 am-1:15 pm
1 stop5h 10m
$239
Las VegasChicago
LAS - MDW
LASMDW
Las Vegas Harry Reid Intl
Thu 4/16
6:20 pm-11:55 pm
Nonstop3h 35m
Chicago Midway
Sat 4/25
2:30 pm-6:55 pm
1 stop6h 25m
$243
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-ORD
LAS-RFD
LAS-MDW
LAS-BMI
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-ORD
LAS-RFD
LAS-MDW
LAS-BMI
What is the cheapest month to book a flight from Las Vegas to Illinois?
Currently, April is the cheapest month in which you can book a flight from Las Vegas to Illinois (average of $56). Flying from Las Vegas to Illinois in June is currently the most expensive (average of $130). 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 March 29, 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 in the evening.
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 March 28, 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 March 29, 2026.
The most flights from LAS to USIL are scheduled on a Saturday (44 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (14 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 March 29, 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.
Comfort
8.0
Crew
8.6
Entertainment
7.5
Food
7.0
Overall
8.0
Boarding
8.1
Reviews
1 / 20
8.0
ExcellentGina,Jul 2025
LAS - DEN
Comfort
8.0
Crew
8.6
Entertainment
7.5
Food
7.0
Overall
8.0
Boarding
8.1
Reviews
1 / 20
8.0
ExcellentGina,Jul 2025
LAS - DEN
Comfort
8.0
Crew
8.6
Entertainment
7.5
Food
7.0
Overall
8.0
Boarding
8.1
Reviews
1 / 20
8.0
ExcellentGina,Jul 2025
LAS - DEN
Comfort
8.0
Crew
8.6
Entertainment
7.5
Food
7.0
Overall
8.0
Boarding
8.1
Reviews
1 / 20
8.0
ExcellentGina,Jul 2025
LAS - DEN
Comfort
8.0
Crew
8.6
Entertainment
7.5
Food
7.0
Overall
8.0
Boarding
8.1
Reviews
1 / 20
8.0
ExcellentGina,Jul 2025
LAS - DEN
Comfort
8.0
Crew
8.6
Entertainment
7.5
Food
7.0
Overall
8.0
Boarding
8.1
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 March 29, 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 8 airlines flying from Las Vegas to Illinois
Discover the top 8 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 March 29, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$43 | Average$194 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$60 | Average$158 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$91 | Average$198 | FlexibilityNo cancel fee | On-time88% | |
| Cheapest$134 | Average$298 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$154 | Average$339 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$159 | Average$303 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$159 | Average$365 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$236 | Average$386 | FlexibilityNo cancel fee | On-timeN/A |