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Cheap flights from Chicago O'Hare Intl Airport to Las Vegas from $122

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 O'Hare Intl Airport to Las Vegas departing on 11/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Chicago O'Hare Intl Airport to Las Vegas

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
7:15 am - 9:23 am
ORD
-
LAS
4h 08mnonstop
Frontier Logo
11:49 pm - 5:37 am
LAS
-
ORD
3h 48mnonstop
$228Frontier
Sun, Jul 26 - Fri, Jul 31
Multiple Airlines Logo
7:15 am - 9:23 am
ORD
-
LAS
4h 08mnonstop
Multiple Airlines Logo
2:38 pm - 11:36 pm
LAS
-
ORD
6h 58m
1 stop
$229Multiple Airlines
Wed, Jul 22 - Wed, Jul 29
Multiple Airlines Logo
7:59 pm - 10:31 am
ORD
-
LAS
16h 32m
1 stop
Multiple Airlines Logo
11:49 pm - 5:37 am
LAS
-
ORD
3h 48mnonstop
$230Multiple Airlines
Fri, Aug 7 - Mon, Aug 10
Frontier Logo
6:50 am - 8:58 am
ORD
-
LAS
4h 08mnonstop
Frontier Logo
6:05 am - 11:57 am
LAS
-
ORD
3h 52mnonstop
$231Frontier
Wed, Sep 16 - Fri, Sep 18
Frontier Logo
9:57 pm - 7:09 am
ORD
-
LAS
11h 12m
1 stop
Frontier Logo
11:49 pm - 5:37 am
LAS
-
ORD
3h 48mnonstop
$232Frontier
Wed, Aug 5 - Thu, Aug 6
Frontier Logo
6:50 am - 8:58 am
ORD
-
LAS
4h 08mnonstop
Frontier Logo
11:55 pm - 5:42 am
LAS
-
ORD
3h 47mnonstop
$233Frontier
Thu, Sep 17 - Mon, Sep 21
Frontier Logo
7:15 am - 9:23 am
ORD
-
LAS
4h 08mnonstop
Frontier Logo
11:49 pm - 5:37 am
LAS
-
ORD
3h 48mnonstop
$234Frontier
Fri, Jul 24 - Sat, Jul 25
Frontier Logo
7:15 am - 9:23 am
ORD
-
LAS
4h 08mnonstop
Frontier Logo
11:49 pm - 5:37 am
LAS
-
ORD
3h 48mnonstop
$235Frontier
Mon, Jul 27 - Wed, Jul 29
Frontier Logo
7:15 am - 9:23 am
ORD
-
LAS
4h 08mnonstop
Frontier Logo
11:49 pm - 5:37 am
LAS
-
ORD
3h 48mnonstop
$236Frontier
Sun, Jul 26 - Wed, Jul 29
Frontier Logo
7:15 am - 9:23 am
ORD
-
LAS
4h 08mnonstop
Frontier Logo
11:49 pm - 5:37 am
LAS
-
ORD
3h 48mnonstop
$237Frontier
Sat, Jul 25 - Wed, Jul 29

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Frontier flights from Chicago O'Hare Intl Airport to Las Vegas

Our best Frontier deals on Chicago O'Hare Intl Airport to Las Vegas flight tickets
Frontier
Jul 26
ORD7:15 amChicago O'Hare Intl
4h 08m
LAS9:23 amLas Vegas Harry Reid Intl
Jul 31
LAS11:49 pmLas Vegas Harry Reid Intl
3h 48m
ORD5:37 amChicago O'Hare Intl
$228
Frontier
Jul 11
ORD7:15 amChicago O'Hare Intl
4h 08m
LAS9:23 amLas Vegas Harry Reid Intl
Jul 22
LAS11:49 pmLas Vegas Harry Reid Intl
3h 48m
ORD5:37 amChicago O'Hare Intl
$230
Frontier
Sep 16
ORD6:50 amChicago O'Hare Intl
4h 08m
LAS8:58 amLas Vegas Harry Reid Intl
Sep 18
LAS6:05 amLas Vegas Harry Reid Intl
3h 52m
ORD11:57 amChicago O'Hare Intl
$231

Alaska Airlines flights from Chicago O'Hare Intl Airport to Las Vegas

Our best Alaska Airlines deals on Chicago O'Hare Intl Airport to Las Vegas flight tickets
Alaska Airlines
Aug 8
ORD6:20 amChicago O'Hare Intl
13h 12m
1 stop
LAS5:32 pmLas Vegas Harry Reid Intl
Aug 15
LAS6:50 amLas Vegas Harry Reid Intl
10h 47m
1 stop
ORD7:37 pmChicago O'Hare Intl
$255
Alaska Airlines
Aug 7
ORD7:59 pmChicago O'Hare Intl
16h 32m
1 stop
LAS10:31 amLas Vegas Harry Reid Intl
Aug 10
LAS7:21 pmLas Vegas Harry Reid Intl
16h 00m
1 stop
ORD1:21 pmChicago O'Hare Intl
$263
Alaska Airlines
Jul 28
ORD2:20 pmChicago O'Hare Intl
9h 23m
1 stop
LAS9:43 pmLas Vegas Harry Reid Intl
Aug 6
LAS2:38 pmLas Vegas Harry Reid Intl
6h 58m
1 stop
ORD11:36 pmChicago O'Hare Intl
$272

momondo Fare Finder

 
Customize your flight search to find flights from Chicago O'Hare Intl Airport 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 July 3, 2026.
Use the filters below to find and compare flights from Chicago O'Hare Intl Airport to Las Vegas that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

ChicagoLas Vegas

ORD - LAS

ORDLAS

Chicago O'Hare Intl

Sun 7/26

7:15 am-9:23 am

Nonstop4h 08m

Las Vegas Harry Reid Intl

Fri 7/31

11:49 pm-5:37 am

Nonstop3h 48m

$228

ChicagoLas Vegas

ORD - LAS

ORDLAS

Chicago O'Hare Intl

Wed 7/22

7:15 am-9:23 am

Nonstop4h 08m

Las Vegas Harry Reid Intl

Wed 7/29

2:38 pm-11:36 pm

1 stop6h 58m

$229

ChicagoLas Vegas

ORD - LAS

ORDLAS

Chicago O'Hare Intl

Fri 8/7

7:59 pm-10:31 am

1 stop16h 32m

Las Vegas Harry Reid Intl

Mon 8/10

11:49 pm-5:37 am

Nonstop3h 48m

$230

ChicagoLas Vegas

ORD - LAS

ORDLAS

Chicago O'Hare Intl

Wed 9/16

6:50 am-8:58 am

Nonstop4h 08m

Las Vegas Harry Reid Intl

Fri 9/18

6:05 am-11:57 am

Nonstop3h 52m

$231

ChicagoLas Vegas

ORD - LAS

ORDLAS

Chicago O'Hare Intl

Wed 8/5

9:57 pm-7:09 am

1 stop11h 12m

Las Vegas Harry Reid Intl

Thu 8/6

11:49 pm-5:37 am

Nonstop3h 48m

$232
Quickest round-trip

ChicagoLas Vegas

ORD - LAS

ORDLAS

Chicago O'Hare Intl

Thu 9/17

6:50 am-8:58 am

Nonstop4h 08m

Las Vegas Harry Reid Intl

Mon 9/21

11:55 pm-5:42 am

Nonstop3h 47m

$233

ChicagoLas Vegas

ORD - LAS

ORDLAS

Chicago O'Hare Intl

Fri 7/24

7:15 am-9:23 am

Nonstop4h 08m

Las Vegas Harry Reid Intl

Sat 7/25

11:49 pm-5:37 am

Nonstop3h 48m

$234

ChicagoLas Vegas

ORD - LAS

ORDLAS

Chicago O'Hare Intl

Mon 7/27

7:15 am-9:23 am

Nonstop4h 08m

Las Vegas Harry Reid Intl

Wed 7/29

11:49 pm-5:37 am

Nonstop3h 48m

$235

ChicagoLas Vegas

ORD - LAS

ORDLAS

Chicago O'Hare Intl

Sun 7/26

7:15 am-9:23 am

Nonstop4h 08m

Las Vegas Harry Reid Intl

Wed 7/29

11:49 pm-5:37 am

Nonstop3h 48m

$236

ChicagoLas Vegas

ORD - LAS

ORDLAS

Chicago O'Hare Intl

Sat 7/25

7:15 am-9:23 am

Nonstop4h 08m

Las Vegas Harry Reid Intl

Wed 7/29

11:49 pm-5:37 am

Nonstop3h 48m

$237

Flights are sorted by cheapest round-trip flights first.

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

How to get the cheapest flight ticket from Chicago O'Hare Intl Airport 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 O'Hare Intl Airport 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 O'Hare Intl Airport, with most prices found around $239. The month of January is another great option to travel to Las Vegas, with average flight prices from Chicago O'Hare Intl Airport averaging around $252.

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 $277. Flights from Chicago O'Hare Intl Airport to Las Vegas on a Friday will generally be more expensive and average around $373. 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 $265. Flights to Las Vegas are more costly in the morning, with an average ticket price of $350. 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 O'Hare Intl to Las Vegas Harry Reid Intl flight route?

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

How far in advance should I book a flight from Chicago O'Hare Intl Airport to Las Vegas?

You are more likely to see cheaper flights to Las Vegas from Chicago O'Hare Intl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Las Vegas for around $308 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 O'Hare Intl Airport for as low as $261 on momondo.

What cabin class options are available on Chicago O'Hare Intl Airport to Las Vegas flights?

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

How have Chicago O'Hare Intl Airport to Las Vegas flight prices changed over time?

As of July 2026, prices for Chicago O'Hare Intl Airport to Las Vegas flights are approximately 10% cheaper when compared to flights at the same time last year.

When to book flights from Chicago O'Hare Intl Airport to Las Vegas

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

Cheap Chicago O'Hare Intl Airport to Las Vegas (ORD to LAS) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Chicago O'Hare Intl Airport to Las Vegas

Best Price Found

$157

Fastest flight time

3h 53m

Direct flights

Every day

Airports in Las Vegas

1 airport
The best one-way flight to Las Vegas from Chicago O'Hare Intl Airport in the past 72 hours is $157. The best round-trip flight deal from Chicago O'Hare Intl Airport to Las Vegas found on momondo in the last 72 hours is $292.
The fastest flight from Chicago O'Hare Intl Airport to Las Vegas takes 3h 53m
Direct flights go from Chicago O'Hare Intl Airport to Las Vegas every day.
There is 1 airport in Las Vegas. From Chicago O'Hare Intl Airport there are direct flights to Las Vegas Harry Reid Intl (LAS).
Search flight deals

Frequently asked questions about flying from Chicago O'Hare Intl Airport to Las Vegas

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

    There are 1506.6 mi between Chicago O'Hare Intl and Las Vegas Harry Reid Intl. By plane, this route typically takes 3h 53m.

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

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

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

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

    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 Chicago O'Hare Intl Airport 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 O'Hare Intl Airport to Las Vegas?

  • What is the most popular airline from Chicago O'Hare Intl Airport to Las Vegas?

Best airlines flying from Chicago O'Hare Intl Airport to Las Vegas

Compare and see reviews for airlines that fly from Chicago O'Hare Intl Airport to Las Vegas with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $57Free CancellationRating
5.6
2,848 reviews
Search Frontier flights
JetBluePriceFrom $147Free CancellationRating
7.1
3,009 reviews
Search JetBlue flights
SouthwestPriceFrom $159Free CancellationRating
7.9
4,250 reviews
Search Southwest flights
American AirlinesPriceFrom $159Free CancellationRating
7.1
11,766 reviews
Search American Airlines flights
DeltaPriceFrom $159Free CancellationRating
7.8
8,453 reviews
Search Delta flights
United AirlinesPriceFrom $160Free CancellationRating
7.4
9,927 reviews
Search United Airlines flights
Alaska AirlinesPriceFrom $240Free CancellationRating
7.9
12,607 reviews
Search Alaska Airlines flights

  • United Airlines Flights From Chicago O'Hare Intl Airport to Las Vegas

    United Airlines is one of the most popular airlines flying from Chicago O'Hare Intl Airport to Las Vegas, operating 36 flights/week on average for this route. A good United Airlines flight deal for Chicago O'Hare Intl Airport to Las Vegas starts from $160 round-trip, up to an average price of $381. Our users have rated United Airlines at 7.4/10.

  • American Airlines Flights From Chicago O'Hare Intl Airport to Las Vegas

    American Airlines is also a popular choice for this route. American Airlines flight deals for Chicago O'Hare Intl Airport to Las Vegas start from as low as $159 round-trip, depending on your selected dates, with average American Airlines deals seen on momondo around $347. American Airlines operates 28 flights to Las Vegas from Chicago O'Hare Intl Airport in an average week. Users have rated it 7.1/10 across 11,766 reviews.

Traveling to a place near Las Vegas?

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

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Chicago to Las Vegas. momondo saves you time and could save you money on your trip.

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

Yes. All flights to Las Vegas from Chicago on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Chicago to Las Vegas.

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

Yes momondo offers price alerts on flights to Las Vegas from Chicago. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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