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Cheap flights from Chicago O'Hare Intl Airport to Las Vegas from $68

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 10/15. 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 Chicago O'Hare Intl Airport to Las Vegas

Cheap round-trip flights

Frontier Logo
10:43 pm - 12:44 amORD-LAS
4h 01mnonstop
Frontier Logo
12:59 am - 12:15 amLAS-ORD
21h 16m1 stop
$134Frontier
Find Deal
Mon, Nov 3 - Thu, Nov 6
Frontier Logo
10:43 pm - 12:44 amORD-LAS
4h 01mnonstop
Frontier Logo
10:58 pm - 11:14 amLAS-ORD
10h 16m1 stop
$135Frontier
Find Deal
Sun, Nov 9 - Mon, Nov 10
Spirit Airlines Logo
6:35 am - 8:29 amORD-LAS
3h 54mnonstop
Spirit Airlines Logo
12:50 am - 6:25 amLAS-ORD
3h 35mnonstop
$136Spirit Airlines
Find Deal
Wed, Oct 29 - Wed, Nov 5
Spirit Airlines Logo
8:30 pm - 10:35 pmORD-LAS
4h 05mnonstop
Spirit Airlines Logo
12:50 am - 6:25 amLAS-ORD
3h 35mnonstop
$137Spirit Airlines
Find Deal
Wed, Nov 12 - Fri, Nov 14
Spirit Airlines Logo
8:30 pm - 10:35 pmORD-LAS
4h 05mnonstop
Spirit Airlines Logo
12:50 am - 6:25 amLAS-ORD
3h 35mnonstop
$138Spirit Airlines
Find Deal
Wed, Feb 18 - Fri, Feb 20
Multiple Airlines Logo
10:43 pm - 12:44 amORD-LAS
4h 01mnonstop
Multiple Airlines Logo
12:50 am - 6:25 amLAS-ORD
3h 35mnonstop
$139Multiple Airlines
Find Deal
Mon, Nov 3 - Sun, Nov 9
United Airlines Logo
7:37 pm - 9:49 pmORD-LAS
4h 12mnonstop
United Airlines Logo
11:59 pm - 5:33 amLAS-ORD
3h 34mnonstop
$159United Airlines
Find Deal
Sat, Nov 8 - Thu, Nov 13
United Airlines Logo
11:20 am - 1:24 pmORD-LAS
4h 04mnonstop
United Airlines Logo
4:07 pm - 9:55 pmLAS-ORD
3h 48mnonstop
$169United Airlines
Find Deal
Tue, Oct 14 - Sat, Oct 18
Alaska Airlines Logo
2:59 pm - 8:50 pmORD-LAS
7h 51m1 stop
Alaska Airlines Logo
3:00 pm - 11:10 pmLAS-ORD
6h 10m1 stop
$178Alaska Airlines
Find Deal
Tue, Feb 17 - Wed, Feb 25
Southwest Logo
6:15 am - 8:15 amORD-LAS
4h 00mnonstop
Southwest Logo
6:00 pm - 11:40 pmLAS-ORD
3h 40mnonstop
$179Southwest
Find Deal
Tue, Oct 7 - Wed, Oct 8

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

Our best Spirit Airlines deals on Chicago O'Hare Intl Airport to Las Vegas flight tickets
Spirit Airlines
Oct 29
ORD6:35 amChicago O'Hare Intl
3h 54m
LAS8:29 amLas Vegas Harry Reid Intl
Nov 5
LAS12:50 amLas Vegas Harry Reid Intl
3h 35m
ORD6:25 amChicago O'Hare Intl
$136
Find similar
Spirit Airlines
Nov 12
ORD8:30 pmChicago O'Hare Intl
4h 05m
LAS10:35 pmLas Vegas Harry Reid Intl
Nov 14
LAS12:50 amLas Vegas Harry Reid Intl
3h 35m
ORD6:25 amChicago O'Hare Intl
$137
Find similar
Spirit Airlines
Feb 18
ORD8:30 pmChicago O'Hare Intl
4h 05m
LAS10:35 pmLas Vegas Harry Reid Intl
Feb 20
LAS12:50 amLas Vegas Harry Reid Intl
3h 35m
ORD6:25 amChicago O'Hare Intl
$138
Find similar

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
Nov 3
ORD10:43 pmChicago O'Hare Intl
4h 01m
LAS12:44 amLas Vegas Harry Reid Intl
Nov 6
LAS12:59 amLas Vegas Harry Reid Intl
21h 16m
1 stop
ORD12:15 amChicago O'Hare Intl
$134
Find similar
Frontier
Nov 9
ORD10:43 pmChicago O'Hare Intl
4h 01m
LAS12:44 amLas Vegas Harry Reid Intl
Nov 10
LAS10:58 pmLas Vegas Harry Reid Intl
10h 16m
1 stop
ORD11:14 amChicago O'Hare Intl
$135
Find similar
Frontier
Sep 24
ORD6:44 pmChicago O'Hare Intl
7h 06m
1 stop
LAS11:50 pmLas Vegas Harry Reid Intl
Sep 26
LAS2:57 pmLas Vegas Harry Reid Intl
4h 02m
ORD8:59 pmChicago O'Hare Intl
$136
Find similar

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 September 19, 2025.
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

ChicagoLas Vegas

ORD - LAS

ORDLAS

Chicago O'Hare Intl

Mon 11/3

10:43 pm-12:44 am

Nonstop4h 01m

Las Vegas Harry Reid Intl

Thu 11/6

12:59 am-12:15 am

1 stop21h 16m

$134

ChicagoLas Vegas

ORD - LAS

ORDLAS

Chicago O'Hare Intl

Sun 11/9

10:43 pm-12:44 am

Nonstop4h 01m

Las Vegas Harry Reid Intl

Mon 11/10

10:58 pm-11:14 am

1 stop10h 16m

$135

ChicagoLas Vegas

ORD - LAS

ORDLAS

Chicago O'Hare Intl

Wed 10/29

6:35 am-8:29 am

Nonstop3h 54m

Las Vegas Harry Reid Intl

Wed 11/5

12:50 am-6:25 am

Nonstop3h 35m

$136

ChicagoLas Vegas

ORD - LAS

ORDLAS

Chicago O'Hare Intl

Wed 11/12

8:30 pm-10:35 pm

Nonstop4h 05m

Las Vegas Harry Reid Intl

Fri 11/14

12:50 am-6:25 am

Nonstop3h 35m

$137

ChicagoLas Vegas

ORD - LAS

ORDLAS

Chicago O'Hare Intl

Wed 2/18

8:30 pm-10:35 pm

Nonstop4h 05m

Las Vegas Harry Reid Intl

Fri 2/20

12:50 am-6:25 am

Nonstop3h 35m

$138

ChicagoLas Vegas

ORD - LAS

ORDLAS

Chicago O'Hare Intl

Mon 11/3

10:43 pm-12:44 am

Nonstop4h 01m

Las Vegas Harry Reid Intl

Sun 11/9

12:50 am-6:25 am

Nonstop3h 35m

$139

ChicagoLas Vegas

ORD - LAS

ORDLAS

Chicago O'Hare Intl

Sat 11/8

7:37 pm-9:49 pm

Nonstop4h 12m

Las Vegas Harry Reid Intl

Thu 11/13

11:59 pm-5:33 am

Nonstop3h 34m

$159

ChicagoLas Vegas

ORD - LAS

ORDLAS

Chicago O'Hare Intl

Tue 10/14

11:20 am-1:24 pm

Nonstop4h 04m

Las Vegas Harry Reid Intl

Sat 10/18

4:07 pm-9:55 pm

Nonstop3h 48m

$169

ChicagoLas Vegas

ORD - LAS

ORDLAS

Chicago O'Hare Intl

Tue 2/17

2:59 pm-8:50 pm

1 stop7h 51m

Las Vegas Harry Reid Intl

Wed 2/25

3:00 pm-11:10 pm

1 stop6h 10m

$178

ChicagoLas Vegas

ORD - LAS

ORDLAS

Chicago O'Hare Intl

Tue 10/7

6:15 am-8:15 am

Nonstop4h 00m

Las Vegas Harry Reid Intl

Wed 10/8

6:00 pm-11:40 pm

Nonstop3h 40m

$179

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 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 cheapest month to fly to Las Vegas?

The month of October is, on average, the cheapest month to fly to Las Vegas from Chicago O'Hare Intl Airport, with most prices found around $218. The month of August is another great option to travel to Las Vegas, with average flight prices from Chicago O'Hare Intl Airport averaging around $227.

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

Our data shows that Tuesday is the least expensive day to fly to Las Vegas. Tickets to fly out on this day can be as low as $238. Flights from Chicago O'Hare Intl Airport to Las Vegas on a Thursday will generally be more expensive and average around $304. 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 $233. Flights to Las Vegas are more costly in the morning, with an average ticket price of $308. 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 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 $261 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 $205 on momondo.

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

There are 4 cabin classes available to choose from on Chicago O'Hare Intl 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 O'Hare Intl Airport to Las Vegas flights?

No. A direct flight is the cheapest option for a flight between Chicago O'Hare Intl Airport to Las Vegas.

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

As of September 2025, prices for Chicago O'Hare Intl Airport to Las Vegas flights are approximately 14% 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

$114

Fastest flight time

3h 54m

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 $114. The best round-trip flight deal from Chicago O'Hare Intl Airport to Las Vegas found on momondo in the last 72 hours is $186.
The fastest flight from Chicago O'Hare Intl Airport to Las Vegas takes 3h 54m
Direct flights go from Chicago O'Hare Intl Airport to Las Vegas every day.
There is 1 airport near Las Vegas: Las Vegas Harry Reid Intl (LAS)
Search flight deals

  • 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 54m.

  • 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 $73Free CancellationRating
5.8
3,171 reviews
Search Frontier flights
Spirit AirlinesPriceFrom $87Free CancellationRating
6.3
8,030 reviews
Search Spirit Airlines flights
SouthwestPriceFrom $159Free CancellationRating
8.0
4,242 reviews
Search Southwest flights
American AirlinesPriceFrom $159Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
United AirlinesPriceFrom $174Free CancellationRating
7.4
8,926 reviews
Search United Airlines flights
DeltaPriceFrom $182Free CancellationRating
7.9
7,964 reviews
Search Delta flights
Sun Country AirPriceFrom $203Free CancellationRating
6.9
330 reviews
Search Sun Country Air flights
Alaska AirlinesPriceFrom $222Free CancellationRating
8.0
10,000 reviews
Search Alaska Airlines flights

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

    Southwest is one of the most popular airlines flying from Chicago O'Hare Intl Airport to Las Vegas, operating 11 flights/week on average for this route. A good Southwest flight deal for Chicago O'Hare Intl Airport to Las Vegas starts from $159 round-trip, up to an average price of $316. Our users have rated Southwest at 8.0/10.

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

    United Airlines is also a popular choice for this route. United Airlines flight deals for Chicago O'Hare Intl Airport to Las Vegas start from as low as $174 round-trip, depending on your selected dates, with average United Airlines deals seen on momondo around $377. United Airlines operates 32 flights to Las Vegas from Chicago O'Hare Intl Airport in an average week. Users have rated it 7.4/10 across 8,926 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
Henderson
Mesquite
North Las Vegas
Paradise
Kingman
Pahrump
Primm
Furnace Creek
Boulder City
Winchester
Sunrise Manor
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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