LAS

$77 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 7/4. 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

KAYAK searches hundreds of travel sites at once for deals on flights to Las Vegas

Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 24% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Flight Deals
Useful Info
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, Aug 16 - Thu, Aug 27
Allegiant Air Logo
12:31 pm - 2:03 pm
MLI
-
LAS
3h 32mnonstop
Allegiant Air Logo
7:05 am - 12:16 pm
LAS
-
MLI
3h 11mnonstop
$117Allegiant Air
Sun, Aug 16 - Thu, Aug 27
Allegiant Air Logo
12:31 pm - 2:03 pm
MLI
-
LAS
3h 32mnonstop
Allegiant Air Logo
7:05 am - 12:16 pm
LAS
-
MLI
3h 11mnonstop
$123Allegiant Air
Sun, Aug 16 - Thu, Aug 27
Multiple Airlines Logo
1:53 pm - 8:59 am
MLI
-
LAS
21h 06m
1 stop
Multiple Airlines Logo
7:05 am - 12:16 pm
LAS
-
MLI
3h 11mnonstop
$179Multiple Airlines
Tue, Jul 21 - Tue, Jul 28
Frontier Logo
8:08 pm - 11:29 pm
STL
-
LAS
5h 21m
1 stop
Frontier Logo
6:00 am - 2:49 pm
LAS
-
STL
6h 49m
1 stop
$203Frontier
Sun, Jul 26 - Wed, Jul 29
Frontier Logo
2:52 pm - 4:28 pm
STL
-
LAS
3h 36mnonstop
Frontier Logo
12:40 pm - 6:05 pm
LAS
-
STL
3h 25mnonstop
$204Frontier
Wed, Jul 29 - Sat, Aug 1
American Airlines Logo
4:30 pm - 10:25 pm
BMI
-
LAS
7h 55m
1 stop
American Airlines Logo
6:00 am - 3:56 pm
LAS
-
BMI
7h 56m
1 stop
$329American Airlines
Mon, Jun 22 - Sat, Jun 27
American Airlines Logo
6:02 pm - 11:01 pm
BMI
-
LAS
6h 59m
1 stop
American Airlines Logo
5:00 am - 3:52 pm
LAS
-
BMI
8h 52m
1 stop
$334American Airlines
Thu, Oct 29 - Sun, Nov 1
United Airlines Logo
1:32 pm - 8:07 pm
BMI
-
LAS
8h 35m
2 stops
United Airlines Logo
11:30 pm - 8:57 am
LAS
-
BMI
7h 27m
1 stop
$344United Airlines
Mon, Jun 29 - Fri, Jul 3
Multiple Airlines Logo
11:46 am - 11:14 pm
EVV
-
LAS
13h 28m
1 stop
Multiple Airlines Logo
9:47 pm - 3:49 pm
LAS
-
EVV
16h 02m
1 stop
$366Multiple Airlines
Sat, Sep 26 - Wed, Sep 30
United Airlines Logo
6:55 pm - 11:44 pm
DEC
-
LAS
6h 49m
1 stop
United Airlines Logo
11:30 pm - 8:46 am
LAS
-
DEC
7h 16m
1 stop
$414United Airlines
Useful Info

Good to know

Low seasonJanuary
Cheapest flight$77
Best time to beat the crowds with an average 8% drop in price.
Most popular time to fly with an average 15% increase in price.
Flight from St. Louis 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
Primm
Winchester
Sunrise Manor

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)