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Cheap flights from Chicago to Las Vegas from $78

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Chicago to Las Vegas departing on 2/16. 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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0 bags

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Find the cheapest flights from Chicago to Las Vegas

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
2:29 pm - 8:11 pm
ORD
-
LAS
7h 42m
1 stop
Multiple Airlines Logo
11:59 pm - 5:31 am
LAS
-
ORD
3h 32mnonstop
$161Multiple Airlines
Mon, Apr 13 - Mon, Apr 20
Frontier Logo
3:24 pm - 10:51 pm
MDW
-
LAS
9h 27m
1 stop
Frontier Logo
8:23 pm - 8:00 pm
LAS
-
MDW
21h 37m
1 stop
$161Frontier
Mon, Feb 16 - Thu, Feb 19
Frontier Logo
5:05 am - 4:07 pm
ORD
-
LAS
13h 02m
1 stop
Frontier Logo
12:25 am - 6:08 am
LAS
-
ORD
3h 43mnonstop
$162Frontier
Thu, Mar 5 - Wed, Mar 11
Frontier Logo
3:21 pm - 10:45 pm
MDW
-
LAS
9h 24m
1 stop
Frontier Logo
12:59 am - 3:19 pm
LAS
-
MDW
12h 20m
1 stop
$162Frontier
Sun, Feb 22 - Fri, Feb 27
Frontier Logo
8:10 am - 3:21 pm
ORD
-
LAS
9h 11m
1 stop
Frontier Logo
11:59 pm - 10:51 am
LAS
-
ORD
8h 52m
1 stop
$163Frontier
Tue, Feb 17 - Wed, Feb 25
Frontier Logo
8:00 am - 10:19 am
ORD
-
LAS
4h 19mnonstop
Frontier Logo
11:59 pm - 10:44 am
LAS
-
ORD
8h 45m
1 stop
$164Frontier
Sat, Apr 11 - Tue, Apr 14
Allegiant Air Logo
1:24 pm - 3:16 pm
RFD
-
LAS
3h 52mnonstop
Allegiant Air Logo
6:30 am - 11:51 am
LAS
-
RFD
3h 21mnonstop
$165Allegiant Air
Sun, Feb 8 - Thu, Feb 19
United Airlines Logo
6:00 am - 8:13 am
ORD
-
LAS
4h 13mnonstop
United Airlines Logo
7:06 pm - 12:45 am
LAS
-
ORD
3h 39mnonstop
$169United Airlines
Mon, Feb 23 - Fri, Feb 27
Southwest Logo
5:00 pm - 7:05 pm
MDW
-
LAS
4h 05mnonstop
Southwest Logo
5:25 am - 10:50 am
LAS
-
MDW
3h 25mnonstop
$169Southwest
Mon, Feb 23 - Fri, Feb 27
Allegiant Air Logo
12:41 pm - 2:39 pm
RFD
-
LAS
3h 58mnonstop
Allegiant Air Logo
6:30 am - 11:50 am
LAS
-
RFD
3h 20mnonstop
$184Allegiant Air
Sun, Mar 1 - Thu, Mar 5

Frontier flights from Chicago to Las Vegas

Our best Frontier deals on Chicago to Las Vegas flight tickets
Frontier
Feb 16
MDW3:24 pmChicago Midway
9h 27m
1 stop
LAS10:51 pmLas Vegas Harry Reid Intl
Feb 19
LAS8:23 pmLas Vegas Harry Reid Intl
21h 37m
1 stop
MDW8:00 pmChicago Midway
$161
Frontier
Feb 22
MDW3:21 pmChicago Midway
9h 24m
1 stop
LAS10:45 pmLas Vegas Harry Reid Intl
Feb 27
LAS12:59 amLas Vegas Harry Reid Intl
12h 20m
1 stop
MDW3:19 pmChicago Midway
$162
Frontier
Feb 22
ORD12:56 pmChicago O'Hare Intl
11h 49m
1 stop
LAS10:45 pmLas Vegas Harry Reid Intl
Feb 25
LAS7:30 amLas Vegas Harry Reid Intl
7h 22m
1 stop
ORD4:52 pmChicago O'Hare Intl
$163

United Airlines flights from Chicago to Las Vegas

Our best United Airlines deals on Chicago to Las Vegas flight tickets
United Airlines
Feb 23
ORD6:00 amChicago O'Hare Intl
4h 13m
LAS8:13 amLas Vegas Harry Reid Intl
Feb 27
LAS7:06 pmLas Vegas Harry Reid Intl
3h 39m
ORD12:45 amChicago O'Hare Intl
$169
United Airlines
Feb 28
ORD3:37 pmChicago O'Hare Intl
4h 17m
LAS5:54 pmLas Vegas Harry Reid Intl
Mar 2
LAS5:22 pmLas Vegas Harry Reid Intl
3h 37m
ORD10:59 pmChicago O'Hare Intl
$198
United Airlines
Feb 23
ORD9:15 pmChicago O'Hare Intl
4h 15m
LAS11:30 pmLas Vegas Harry Reid Intl
Mar 2
LAS7:06 pmLas Vegas Harry Reid Intl
3h 39m
ORD12:45 amChicago O'Hare Intl
$208

momondo Fare Finder

 
Customize your flight search to find flights from Chicago to Las Vegas 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 January 27, 2026.
Use the filters below to find and compare flights from Chicago to Las Vegas that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

ChicagoLas Vegas

ORD - LAS

ORDLAS

Chicago O'Hare Intl

Mon 4/13

2:29 pm-8:11 pm

1 stop7h 42m

Las Vegas Harry Reid Intl

Mon 4/20

11:59 pm-5:31 am

Nonstop3h 32m

$161

ChicagoLas Vegas

MDW - LAS

MDWLAS

Chicago Midway

Mon 2/16

3:24 pm-10:51 pm

1 stop9h 27m

Las Vegas Harry Reid Intl

Thu 2/19

8:23 pm-8:00 pm

1 stop21h 37m

$161

ChicagoLas Vegas

ORD - LAS

ORDLAS

Chicago O'Hare Intl

Thu 3/5

5:05 am-4:07 pm

1 stop13h 02m

Las Vegas Harry Reid Intl

Wed 3/11

12:25 am-6:08 am

Nonstop3h 43m

$162

ChicagoLas Vegas

MDW - LAS

MDWLAS

Chicago Midway

Sun 2/22

3:21 pm-10:45 pm

1 stop9h 24m

Las Vegas Harry Reid Intl

Fri 2/27

12:59 am-3:19 pm

1 stop12h 20m

$162

ChicagoLas Vegas

ORD - LAS

ORDLAS

Chicago O'Hare Intl

Tue 2/17

8:10 am-3:21 pm

1 stop9h 11m

Las Vegas Harry Reid Intl

Wed 2/25

11:59 pm-10:51 am

1 stop8h 52m

$163

ChicagoLas Vegas

ORD - LAS

ORDLAS

Chicago O'Hare Intl

Sat 4/11

8:00 am-10:19 am

Nonstop4h 19m

Las Vegas Harry Reid Intl

Tue 4/14

11:59 pm-10:44 am

1 stop8h 45m

$164

ChicagoLas Vegas

RFD - LAS

RFDLAS

Chicago Greater Rockford

Sun 2/8

1:24 pm-3:16 pm

Nonstop3h 52m

Las Vegas Harry Reid Intl

Thu 2/19

6:30 am-11:51 am

Nonstop3h 21m

$165

ChicagoLas Vegas

ORD - LAS

ORDLAS

Chicago O'Hare Intl

Mon 2/23

6:00 am-8:13 am

Nonstop4h 13m

Las Vegas Harry Reid Intl

Fri 2/27

7:06 pm-12:45 am

Nonstop3h 39m

$169

ChicagoLas Vegas

MDW - LAS

MDWLAS

Chicago Midway

Mon 2/23

5:00 pm-7:05 pm

Nonstop4h 05m

Las Vegas Harry Reid Intl

Fri 2/27

5:25 am-10:50 am

Nonstop3h 25m

$169

ChicagoLas Vegas

RFD - LAS

RFDLAS

Chicago Greater Rockford

Sun 3/1

12:41 pm-2:39 pm

Nonstop3h 58m

Las Vegas Harry Reid Intl

Thu 3/5

6:30 am-11:50 am

Nonstop3h 20m

$184

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 Las Vegas from

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

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 typical price of a round-trip flight between Chicago and Las Vegas?

What is the cheapest month to fly to Las Vegas?

The month of August is, on average, the cheapest month to fly to Las Vegas from Chicago, with most prices found around $232. The month of January is another great option to travel to Las Vegas, with average flight prices from Chicago averaging around $247.

What is the cheapest day to depart on your flight to Las Vegas?

Our data shows that Sunday is the least expensive day to fly to Las Vegas. Tickets to fly out on this day can be as low as $244. Flights from Chicago to Las Vegas on a Thursday will generally be more expensive and average around $317. 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 Las Vegas?

The cheapest time of day to fly to Las Vegas is in the evening when flights can be purchased for as low as $240. Flights to Las Vegas are more costly in the morning, with an average ticket price of $303. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

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

Fly from Chicago O'Hare Intl to Las Vegas Harry Reid Intl for the best Chicago - Las Vegas Harry Reid Intl flight prices

How far in advance should I book a flight to Las Vegas?

You are more likely to see cheaper flights to Las Vegas from Chicago when booking weeks ahead of your departure date. In general, you can expect to find flights to Las Vegas for around $278 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Las Vegas from Chicago for as low as $222 on momondo.

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

There are 4 cabin classes available to choose from on Chicago to Las Vegas Harry Reid Intl 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 Chicago to Las Vegas flights?

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

How have Chicago to Las Vegas flight prices changed over time?

As of January 2026, prices for Chicago to Las Vegas flights are approximately 2% more expensive when compared to flights at the same time last year.

When to book flights from Chicago to Las Vegas

Are you open to changing your travel dates? Check out the ideal times to fly from Chicago to Las Vegas according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Chicago to Las Vegas (CHI to LAS) flight deals and tips

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

Best Price Found

$118

Fastest flight time

3h 36m

Direct flights

Mon, Tue, Fri and Sat

Airports in Las Vegas

1 airport
The best one-way flight to Las Vegas from Chicago in the past 72 hours is $118. The best round-trip flight deal from Chicago to Las Vegas found on momondo in the last 72 hours is $222.
The fastest flight from Chicago to Las Vegas takes 3h 36m
Direct flights go from Chicago to Las Vegas on Monday, Tuesday, Friday and Saturday. The only airline offering direct flights is Allegiant Air.
There is 1 airport in Las Vegas. From Chicago there are direct flights to Las Vegas Harry Reid Intl (LAS).
Search flight deals

  • How far is Chicago to Las Vegas Harry Reid Intl by plane?

    A flight from Chicago to Las Vegas Harry Reid Intl will travel around 1519.9 mi. A reasonable flight in good conditions will take 3h 36m.

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

    Prices for flights from Chicago to Las Vegas Harry Reid Intl Airport refresh daily.

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

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

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Chicago to Las Vegas Harry Reid Intl Airport.

  • What documentation or ID do you need to fly to Las Vegas Harry Reid Intl Airport?

    The travel and health documents you'll need for your trip to Las Vegas Harry Reid Intl Airport 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 Las Vegas Harry Reid Intl Airport. 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 Chicago to Las Vegas?

  • What is the most popular airline from Chicago to Las Vegas?

Best airlines flying from Chicago to Las Vegas

Compare and see reviews for airlines that fly from Chicago to Las Vegas with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $57Free CancellationRating
5.7
3,056 reviews
Search Frontier flights
Spirit AirlinesPriceFrom $82Free CancellationRating
6.3
8,387 reviews
Search Spirit Airlines flights
Allegiant AirPriceFrom $110Free CancellationRating
7.2
706 reviews
Search Allegiant Air flights
JetBluePriceFrom $115Free CancellationRating
7.2
2,890 reviews
Search JetBlue flights
United AirlinesPriceFrom $117Free CancellationRating
7.4
9,209 reviews
Search United Airlines flights
American AirlinesPriceFrom $150Free CancellationRating
7.2
11,201 reviews
Search American Airlines flights
DeltaPriceFrom $158Free CancellationRating
7.9
8,123 reviews
Search Delta flights
SouthwestPriceFrom $159Free CancellationRating
8.0
4,268 reviews
Search Southwest flights
Alaska AirlinesPriceFrom $222Free CancellationRating
8.0
11,801 reviews
Search Alaska Airlines flights

  • Southwest Flights From Chicago to Las Vegas

    Across 36 Southwest flights from Chicago to Las Vegas this week, the average price was $334, with the best Southwest deals starting from $159 round-trip. 4,267 users have rated Southwest on momondo, with an average score of 8.0/10.

  • United Airlines Flights From Chicago to Las Vegas

    Across 9,212 United Airlines reviews on momondo, the average score is 7.4/10. United Airlines flies from Chicago to Las Vegas about 34 times each week, with ticket deals ranging from $117 to $460. Price data is based on momondo searches in the last 72 hours.

Traveling to a place near Las Vegas?

Book flights to Las Vegas if you plan to visit one of these locations
Laughlin
Mount Charleston
Henderson
Paradise
Mesquite
North Las Vegas
Kingman
Pahrump
Primm
Furnace Creek
Boulder City
Sunrise Manor
Winchester
Needles

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Chicago to Las Vegas. Millions of users trust and use momondo every year so you are in good hands.

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

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

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

Once all potential Chicago to Las Vegas flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

Of course. momondo tracks the price of Chicago to Las Vegas flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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