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. Visit our flight page for the latest deals!>/a>

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. Visit our flight page for the latest deals!>/a>

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. Visit our flight page for the latest deals!>/a>

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. Visit our flight page for the latest deals!>/a>

$37 CHEAP FLIGHTS from Illinois to Las Vegas

LAS

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Flights Deals

Cheap Flight Deals 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.

Round-trip

One-way

Last minute

Direct

Recent round-trip flight deals from Illinois to Las Vegas

KAYAK's recommended round-trip deals from the most popular airlines that fly from Illinois to Las Vegas.

Discover the best prices for you by selecting your travel dates on KAYAK.

9:56 pm - 12:10 amORD-LAS

4h 14mnonstop

3:00 pm - 8:56 pmLAS-ORD

3h 56mnonstop

$78Frontier

Find Deal

Sun, Jun 1 - Fri, Jun 6

11:50 am - 1:51 pmORD-LAS

4h 01mnonstop

11:46 pm - 5:25 amLAS-ORD

3h 39mnonstop

$82Spirit Airlines

Find Deal

Wed, May 28 - Fri, May 30

9:50 pm - 12:12 amORD-LAS

4h 22mnonstop

5:15 am - 10:55 amLAS-ORD

3h 40mnonstop

$87

Find Deal

Fri, May 30 - Tue, Jun 3

11:50 am - 1:51 pmORD-LAS

4h 01mnonstop

3:00 pm - 8:56 pmLAS-ORD

3h 56mnonstop

$90

Find Deal

Tue, Jun 3 - Fri, Jun 6

2:08 pm - 3:41 pmMLI-LAS

3h 33mnonstop

6:20 am - 11:35 amLAS-MLI

3h 15mnonstop

$127Allegiant Air

Find Deal

Sun, May 18 - Thu, May 22

12:42 pm - 2:05 pmMLI-LAS

3h 23mnonstop

6:20 am - 11:35 amLAS-MLI

3h 15mnonstop

$133Allegiant Air

Find Deal

Sun, May 11 - Thu, May 29

4:05 pm - 6:05 pmMDW-LAS

4h 00mnonstop

6:15 am - 11:45 amLAS-MDW

3h 30mnonstop

$209Southwest

Find Deal

Mon, Jun 2 - Wed, Jun 4

9:25 pm - 11:25 pmMDW-LAS

4h 00mnonstop

11:45 pm - 5:20 amLAS-MDW

3h 35mnonstop

$219Southwest

Find Deal

Wed, May 28 - Fri, May 30

2:20 pm - 5:58 pmORD-LAS

5h 38m1 stop

1:02 pm - 7:04 pmLAS-ORD

4h 02mnonstop

$229American Airlines

Find Deal

Wed, Jul 16 - Sat, Jul 19

5:00 am - 1:26 pmMLI-LAS

10h 26m1 stop

2:34 pm - 11:08 pmLAS-MLI

6h 34m1 stop

$230American Airlines

Find Deal

Sat, Jul 5 - Wed, Jul 9

Useful Info

Low season	February
High season	May
Cheapest flight	$37

Best time to beat the crowds with an average 8% drop in price.

Most popular time to fly with an average 4% increase in price.

Flight from Chicago O'Hare Airport to Las Vegas

Verified travelerFlew with United AirlinesORD-LASMar 2025

If you can select your seats in advance please do

Verified travelerFlew with Spirit AirlinesORD-LASSep 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.

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.

Everything you need to know for your flight to Las Vegas

Airports

Cabin class

Complete your trip

Direct Flights

Flights to other cities

Origins

Other airports

Return flight deals

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

Las Vegas (LAS)

LAS

$37 Find Cheap Flights from Illinois to Las Vegas

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

Cheap Flight Deals from Illinois to Las Vegas

Recent round-trip flight deals from Illinois to Las Vegas

Recent one-way flight deals from Illinois to Las Vegas

Recent last minute flight deals from Illinois to Las Vegas

Recent direct flight deals from Illinois to Las Vegas

Good to know

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

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.

Everything you need to know for your flight to Las Vegas

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

Cabin class types available on flights to Illinois

Complete your trip to Las Vegas with a hotel stay or car rental

Find direct flights for Las Vegas

Flights to other popular destinations

Flights from domestic origins to Las Vegas

Choose which airport to fly into in Las Vegas

Find deals for your return flight