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Cheap flights from Las Vegas to Illinois from $39

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Las Vegas to Illinois departing on 9/26. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Las Vegas to Illinois

Cheap round-trip flights

Allegiant Air Logo
3:22 pm - 8:52 pmLAS-MDW
3h 30mnonstop
Allegiant Air Logo
7:03 pm - 8:48 pmMDW-LAS
3h 45mnonstop
$78Allegiant Air
Find Deal
Fri, Sep 26 - Mon, Sep 29
Allegiant Air Logo
6:45 am - 12:08 pmLAS-RFD
3h 23mnonstop
Allegiant Air Logo
12:58 pm - 2:42 pmRFD-LAS
3h 44mnonstop
$81Allegiant Air
Find Deal
Thu, Aug 21 - Sun, Aug 24
Spirit Airlines Logo
6:15 am - 11:51 amLAS-ORD
3h 36mnonstop
Spirit Airlines Logo
11:15 am - 1:16 pmORD-LAS
4h 01mnonstop
$85Spirit Airlines
Find Deal
Sat, Sep 6 - Tue, Sep 9
Spirit Airlines Logo
3:50 pm - 9:32 pmLAS-ORD
3h 42mnonstop
Spirit Airlines Logo
7:09 pm - 7:40 amORD-LAS
14h 31m1 stop
$97Spirit Airlines
Find Deal
Sat, Sep 6 - Tue, Sep 9
Frontier Logo
2:59 pm - 8:59 pmLAS-ORD
4h 00mnonstop
Frontier Logo
9:52 pm - 11:58 pmORD-LAS
4h 06mnonstop
$108Frontier
Find Deal
Fri, Oct 17 - Sun, Oct 19
Frontier Logo
2:57 pm - 8:59 pmLAS-ORD
4h 02mnonstop
Frontier Logo
9:54 pm - 12:05 amORD-LAS
4h 11mnonstop
$126Frontier
Find Deal
Fri, Sep 5 - Mon, Sep 8
American Airlines Logo
11:59 pm - 5:30 amLAS-ORD
3h 31mnonstop
American Airlines Logo
8:45 pm - 10:53 pmORD-LAS
4h 08mnonstop
$159American Airlines
Find Deal
Fri, Oct 10 - Tue, Oct 14
Southwest Logo
11:40 pm - 5:10 amLAS-MDW
3h 30mnonstop
Southwest Logo
6:10 am - 7:55 amMDW-LAS
3h 45mnonstop
$159Southwest
Find Deal
Sat, Sep 27 - Tue, Sep 30
Southwest Logo
11:40 pm - 5:10 amLAS-MDW
3h 30mnonstop
Southwest Logo
6:15 pm - 8:10 pmMDW-LAS
3h 55mnonstop
$173Southwest
Find Deal
Mon, Sep 22 - Mon, Sep 29
American Airlines Logo
9:15 am - 9:51 pmLAS-MLI
10h 36m2 stops
American Airlines Logo
5:50 pm - 9:50 pmMLI-LAS
6h 00m1 stop
$256American Airlines
Find Deal
Tue, Aug 26 - Tue, Sep 2

Spirit Airlines flights from Las Vegas to Illinois

Our best Spirit Airlines deals on Las Vegas to Illinois flight tickets
Spirit Airlines
Sep 6
LAS6:15 amLas Vegas Harry Reid Intl
3h 36m
ORD11:51 amChicago O'Hare Intl
Sep 9
ORD11:15 amChicago O'Hare Intl
4h 01m
LAS1:16 pmLas Vegas Harry Reid Intl
$85
Find similar
Spirit Airlines
Sep 6
LAS3:50 pmLas Vegas Harry Reid Intl
3h 42m
ORD9:32 pmChicago O'Hare Intl
Sep 9
ORD7:09 pmChicago O'Hare Intl
14h 31m
1 stop
LAS7:40 amLas Vegas Harry Reid Intl
$97
Find similar
Spirit Airlines
Aug 14
LAS11:10 pmLas Vegas Harry Reid Intl
3h 40m
ORD4:50 amChicago O'Hare Intl
Aug 18
ORD6:00 amChicago O'Hare Intl
3h 45m
LAS7:45 amLas Vegas Harry Reid Intl
$111
Find similar

Frontier flights from Las Vegas to Illinois

Our best Frontier deals on Las Vegas to Illinois flight tickets
Frontier
Oct 17
LAS2:59 pmLas Vegas Harry Reid Intl
4h 00m
ORD8:59 pmChicago O'Hare Intl
Oct 19
ORD9:52 pmChicago O'Hare Intl
4h 06m
LAS11:58 pmLas Vegas Harry Reid Intl
$108
Find similar
Frontier
Sep 5
LAS2:57 pmLas Vegas Harry Reid Intl
4h 02m
ORD8:59 pmChicago O'Hare Intl
Sep 8
ORD9:54 pmChicago O'Hare Intl
4h 11m
LAS12:05 amLas Vegas Harry Reid Intl
$126
Find similar
Frontier
Aug 29
LAS2:44 pmLas Vegas Harry Reid Intl
4h 06m
ORD8:50 pmChicago O'Hare Intl
Sep 1
ORD9:45 pmChicago O'Hare Intl
4h 09m
LAS11:54 pmLas Vegas Harry Reid Intl
$128
Find similar

momondo 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, momondo users made 832,500 searches. Data last updated July 31, 2025.
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

Price

Las VegasChicago

LAS - MDW

LASMDW

Las Vegas Harry Reid Intl

Fri 9/26

3:22 pm-8:52 pm

Nonstop3h 30m

Chicago Midway

Mon 9/29

7:03 pm-8:48 pm

Nonstop3h 45m

$78

Las VegasChicago

LAS - RFD

LASRFD

Las Vegas Harry Reid Intl

Thu 8/21

6:45 am-12:08 pm

Nonstop3h 23m

Chicago Greater Rockford

Sun 8/24

12:58 pm-2:42 pm

Nonstop3h 44m

$81

Las VegasChicago

LAS - ORD

LASORD

Las Vegas Harry Reid Intl

Sat 9/6

6:15 am-11:51 am

Nonstop3h 36m

Chicago O'Hare Intl

Tue 9/9

11:15 am-1:16 pm

Nonstop4h 01m

$85

Las VegasChicago

LAS - ORD

LASORD

Las Vegas Harry Reid Intl

Sat 9/6

3:50 pm-9:32 pm

Nonstop3h 42m

Chicago O'Hare Intl

Tue 9/9

7:09 pm-7:40 am

1 stop14h 31m

$97

Las VegasChicago

LAS - ORD

LASORD

Las Vegas Harry Reid Intl

Fri 10/17

2:59 pm-8:59 pm

Nonstop4h 00m

Chicago O'Hare Intl

Sun 10/19

9:52 pm-11:58 pm

Nonstop4h 06m

$108

Las VegasChicago

LAS - ORD

LASORD

Las Vegas Harry Reid Intl

Fri 9/5

2:57 pm-8:59 pm

Nonstop4h 02m

Chicago O'Hare Intl

Mon 9/8

9:54 pm-12:05 am

Nonstop4h 11m

$126

Las VegasChicago

LAS - ORD

LASORD

Las Vegas Harry Reid Intl

Fri 10/10

11:59 pm-5:30 am

Nonstop3h 31m

Chicago O'Hare Intl

Tue 10/14

8:45 pm-10:53 pm

Nonstop4h 08m

$159

Las VegasChicago

LAS - MDW

LASMDW

Las Vegas Harry Reid Intl

Sat 9/27

11:40 pm-5:10 am

Nonstop3h 30m

Chicago Midway

Tue 9/30

6:10 am-7:55 am

Nonstop3h 45m

$159

Las VegasChicago

LAS - MDW

LASMDW

Las Vegas Harry Reid Intl

Mon 9/22

11:40 pm-5:10 am

Nonstop3h 30m

Chicago Midway

Mon 9/29

6:15 pm-8:10 pm

Nonstop3h 55m

$173

Las VegasMoline

LAS - MLI

LASMLI

Las Vegas Harry Reid Intl

Tue 8/26

9:15 am-9:51 pm

2 stops10h 36m

Moline Quad-City

Tue 9/2

5:50 pm-9:50 pm

1 stop6h 00m

$256

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Illinois from

How to get the cheapest flight ticket from Las Vegas to Illinois

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Illinois?

The cheapest month to fly to Illinois from Las Vegas is in September. Flight prices, which tend to average around $138, are often lower during this time because this is during the off-season. If you aren’t able to travel to Illinois during the month of September, then flying in October is also cheap. Prices for this month can be found on momondo for an average of $145.

What is the cheapest day to depart on your flight to Illinois?

The cheapest day to depart from Las Vegas to Illinois is on a Friday when prices can be found for as low as $266. Flights from Las Vegas to Illinois on a Tuesday will generally be more expensive and average around $411. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Illinois?

Our most recent data shows that the best time of day to fly to Illinois is in the afternoon. Flights from Las Vegas to Illinois during this time can be as low as $206. Flights at noon are often more expensive with an average ticket price of $632.

What is the cheapest Las Vegas Harry Reid Intl to Illinois flight route?

Fly from Las Vegas Harry Reid Intl to Moline Quad-City for the best Las Vegas Harry Reid Intl - Illinois flight prices

How far in advance should I book a flight to Illinois?

You are more likely to see cheaper flights to Illinois from Las Vegas when booking weeks ahead of your departure date. In general, you can expect to find flights to Illinois for around $238 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Illinois from Las Vegas for as low as $161 on momondo.

What cabin class options are available on Las Vegas Harry Reid Intl to Illinois flights?

There are 4 cabin classes available to choose from on Las Vegas Harry Reid Intl to Illinois flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Las Vegas to Illinois flights?

No. A direct flight is the cheapest option for a flight between Las Vegas to Illinois.

Cheap Las Vegas to Illinois flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Las Vegas to Illinois

Best Price Found

$39

Fastest flight time

3h 10m

Direct flights

Every day

Airports in Illinois

6 airports
The best one-way flight to Illinois from Las Vegas in the past 72 hours is $39. The best round-trip flight deal from Las Vegas to Illinois found on momondo in the last 72 hours is $78.
The fastest flight from Las Vegas to Illinois takes 3h 10m
Direct flights go from Las Vegas to Illinois every day.
There are 6 airports near Illinois: Chicago O'Hare Intl (ORD), Chicago Midway (MDW), Chicago Greater Rockford (RFD), Greater Peoria (PIA), Lambert-St Louis (STL), Moline Quad-City (MLI)
Search flight deals

  • When did momondo last update prices for flights from Las Vegas Harry Reid Intl Airport to Illinois?

    Prices for flights from Las Vegas Harry Reid Intl Airport to Illinois are refreshed on a daily basis.

  • How many operators does momondo search for flights from Las Vegas Harry Reid Intl Airport to Illinois?

  • How old do you have to be to fly from Las Vegas Harry Reid Intl Airport to Illinois?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Las Vegas Harry Reid Intl Airport to Illinois.

  • What documentation or ID do you need to fly to Illinois?

    The travel and health documents you'll need for your trip to Illinois may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Illinois. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Las Vegas to Illinois?

Best airlines flying from Las Vegas to Illinois

Compare and see reviews for airlines that fly from Las Vegas to Illinois with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $56Free CancellationRating
5.9
3,239 reviews
Search Frontier flights
Spirit AirlinesPriceFrom $67Free CancellationRating
6.3
8,049 reviews
Search Spirit Airlines flights
Allegiant AirPriceFrom $113Free CancellationRating
7.2
702 reviews
Search Allegiant Air flights
DeltaPriceFrom $118Free CancellationRating
8.0
7,981 reviews
Search Delta flights
American AirlinesPriceFrom $152Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
United AirlinesPriceFrom $158Free CancellationRating
7.4
8,900 reviews
Search United Airlines flights
SouthwestPriceFrom $159Free CancellationRating
8.0
4,246 reviews
Search Southwest flights

Why use momondo?

Why should I use momondo to find a flight deal from Las Vegas to Illinois?

Finding the right flight to Illinois from Las Vegas is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Illinois quick and easy, saving you time and money.

Can I find flights from Las Vegas to Illinois with flexible booking policies on momondo?

All flight searches from Las Vegas to Illinois on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Las Vegas to Illinois?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Illinois from Las Vegas.

I’m not ready to book a flight from Las Vegas to Illinois right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Las Vegas to Illinois flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

An easier way to manage your Illinois trip

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