LAS

$54 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 2/28. 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 23% 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.

Everything you should know

Cheapest round-trip
$130
Typical prices: $211-$437
Frontier
Mon 3/9Sat 3/14
STL - LAS • Non-stop
Cheapest non-stop
$130
Typical prices: $210-$431
Frontier
Mon 3/9Mon 3/16
STL - LAS • Non-stop
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Las Vegas!
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

Mon, Mar 9 - Sat, Mar 14
Frontier Logo
12:14 pm - 2:11 pm
STL
-
LAS
3h 57mnonstop
Frontier Logo
6:05 am - 11:19 am
LAS
-
STL
3h 14mnonstop
$130Frontier
Sun, Mar 8 - Sat, Mar 14
Frontier Logo
6:19 pm - 8:09 pm
STL
-
LAS
3h 50mnonstop
Frontier Logo
6:05 am - 11:19 am
LAS
-
STL
3h 14mnonstop
$132Frontier
Sun, Mar 8 - Thu, Mar 12
Allegiant Air Logo
12:16 pm - 1:53 pm
MLI
-
LAS
3h 37mnonstop
Allegiant Air Logo
6:20 am - 11:27 am
LAS
-
MLI
3h 07mnonstop
$158Allegiant Air
Mon, Mar 2 - Tue, Mar 10
Multiple Airlines Logo
3:40 pm - 9:26 pm
ORD
-
LAS
7h 46m
1 stop
Multiple Airlines Logo
9:59 pm - 11:22 am
LAS
-
ORD
11h 23m
1 stop
$162Multiple Airlines
Mon, May 4 - Fri, May 8
Multiple Airlines Logo
7:43 am - 12:35 pm
ORD
-
LAS
6h 52m
1 stop
Multiple Airlines Logo
7:00 am - 3:42 pm
LAS
-
ORD
6h 42m
1 stop
$164Multiple Airlines
Sun, Apr 26 - Thu, Apr 30
Allegiant Air Logo
12:19 pm - 1:57 pm
MLI
-
LAS
3h 38mnonstop
Allegiant Air Logo
6:20 am - 11:29 am
LAS
-
MLI
3h 09mnonstop
$179Allegiant Air
Wed, Mar 11 - Tue, Mar 17
Delta Logo
4:04 pm - 11:35 pm
BMI
-
LAS
9h 31m
1 stop
Delta Logo
1:25 pm - 10:19 pm
LAS
-
BMI
6h 54m
1 stop
$251Delta
Sat, Apr 18 - Wed, Apr 22
American Airlines Logo
11:16 am - 6:15 pm
BMI
-
LAS
8h 59m
2 stops
American Airlines Logo
6:00 am - 2:16 pm
LAS
-
BMI
6h 16m
1 stop
$256American Airlines
Tue, Aug 4 - Sat, Aug 8
American Airlines Logo
1:35 pm - 9:30 pm
BMI
-
LAS
9h 55m
2 stops
American Airlines Logo
5:15 am - 3:21 pm
LAS
-
BMI
8h 06m
1 stop
$264American Airlines
Tue, Mar 17 - Tue, Mar 24
Delta Logo
5:59 pm - 11:35 pm
EVV
-
LAS
7h 36m
1 stop
Delta Logo
11:35 pm - 10:39 am
LAS
-
EVV
9h 04m
1 stop
$377Delta
Useful Info

Good to know

Low seasonJanuary
Cheapest flight$54
Best time to beat the crowds with an average 2% drop in price.
Most popular time to fly and prices are also 3% lower on average.
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)