LAS

$75 Find Cheap Flights from Illinois to Las Vegas

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to Las Vegas departing on 5/4. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

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Flight Deals

Cheap Flights from Illinois to Las Vegas

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Illinois to Las Vegas that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Illinois to Las Vegas

Sun, May 31 - Thu, Jun 4
Allegiant Air Logo
12:20 pm - 1:52 pm
MLI
-
LAS
3h 32mnonstop
Allegiant Air Logo
6:25 am - 11:39 am
LAS
-
MLI
3h 14mnonstop
$129Allegiant Air
Wed, Apr 29 - Fri, May 1
Frontier Logo
11:07 am - 7:32 pm
ORD
-
LAS
10h 25m
1 stop
Frontier Logo
12:20 am - 6:08 am
LAS
-
ORD
3h 48mnonstop
$148Frontier
Sat, Apr 18 - Tue, Apr 21
Multiple Airlines Logo
10:07 pm - 11:59 pm
ORD
-
LAS
3h 52mnonstop
Multiple Airlines Logo
2:50 pm - 5:50 am
LAS
-
ORD
13h 00m
1 stop
$151Multiple Airlines
Sat, Apr 11 - Thu, Apr 16
Spirit Airlines Logo
4:36 pm - 11:49 pm
ORD
-
LAS
9h 13m
1 stop
Spirit Airlines Logo
8:19 pm - 5:35 am
LAS
-
ORD
7h 16m
1 stop
$152Spirit Airlines
Sat, Apr 11 - Sat, Apr 18
Spirit Airlines Logo
4:36 pm - 11:49 pm
ORD
-
LAS
9h 13m
1 stop
Spirit Airlines Logo
11:51 pm - 5:25 am
LAS
-
ORD
3h 34mnonstop
$153Spirit Airlines
Sat, May 9 - Mon, May 11
Multiple Airlines Logo
8:52 pm - 10:54 pm
ORD
-
LAS
4h 02mnonstop
Multiple Airlines Logo
12:29 am - 8:37 pm
LAS
-
ORD
18h 08m
1 stop
$156Multiple Airlines
Tue, May 5 - Tue, May 12
Delta Logo
12:02 pm - 6:27 pm
BMI
-
LAS
8h 25m
1 stop
Delta Logo
12:45 am - 11:23 am
LAS
-
BMI
8h 38m
1 stop
$291Delta
Wed, Jul 8 - Fri, Jul 10
United Airlines Logo
7:30 pm - 11:59 pm
BMI
-
LAS
6h 29m
1 stop
United Airlines Logo
12:36 am - 9:07 am
LAS
-
BMI
6h 31m
1 stop
$319United Airlines
Mon, May 4 - Tue, May 12
Delta Logo
4:20 pm - 11:02 pm
BMI
-
LAS
8h 42m
1 stop
Delta Logo
12:45 am - 11:23 am
LAS
-
BMI
8h 38m
1 stop
$320Delta
Wed, Jul 8 - Fri, Jul 10
United Airlines Logo
7:30 pm - 11:59 pm
BMI
-
LAS
6h 29m
1 stop
United Airlines Logo
12:59 am - 2:23 pm
LAS
-
BMI
11h 24m
2 stops
$324United Airlines
Useful Info

Good to know

Low seasonJanuary
Cheapest flight$75
Best time to beat the crowds with an average 5% drop in price.
Most popular time to fly with an average 2% increase in price.
Flight from Peoria to Las Vegas

Flights from Illinois to Las Vegas: the best tips from KAYAK users

Insights shared by verified travelers who flew the route from Illinois to Las Vegas 
Learn how KAYAK collects reviews and tips from users.
Verified travelerFlew with United Airlines
ORD
-
LAS
Mar 2025
If you can select your seats in advance please do
Verified travelerFlew with Spirit Airlines
ORD
-
LAS
Sep 2024
Make sure you get your seats booked at time of booking or at the least when you check in and make sure you check in at the earliest to have preferred seating.

FAQs for booking flights from Illinois to Las Vegas

  • How does KAYAK find such low prices on flights from Illinois to Las Vegas?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Illinois to Las Vegas.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Illinois to Las Vegas?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Las Vegas from Illinois is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Illinois to Las Vegas?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Las Vegas with an airline and back to Illinois with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Illinois to Las Vegas?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Las Vegas from Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Traveling to a place near Las Vegas?

Book flights to Las Vegas if you plan to visit one of these locations
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Everything you need to know for your flight to Las Vegas

Information on the airport you'll fly into in Las Vegas

Las Vegas (LAS)