Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

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 9/19. 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
0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Chicago O'Hare Intl Airport to Las Vegas (ORD-LAS)

Cheap round-trip flights

Frontier Logo
9:54 pm - 12:05 amORD-LAS
4h 11mnonstop
Frontier Logo
12:59 am - 9:28 pmLAS-ORD
18h 29m1 stop
$124Frontier
Find Deal
Mon, Sep 15 - Fri, Sep 19
Logo
10:42 am - 4:09 pmORD-LAS
7h 27m1 stop
Logo
1:10 pm - 6:51 pmLAS-ORD
3h 41mnonstop
$125
Find Deal
Mon, Sep 15 - Tue, Sep 23
Logo
7:09 pm - 7:40 amORD-LAS
14h 31m1 stop
Logo
5:14 pm - 9:37 amLAS-ORD
14h 23m1 stop
$126
Find Deal
Tue, Sep 30 - Thu, Oct 2
Spirit Airlines Logo
9:00 am - 11:05 amORD-LAS
4h 05mnonstop
Spirit Airlines Logo
3:50 pm - 9:32 pmLAS-ORD
3h 42mnonstop
$127Spirit Airlines
Find Deal
Wed, Oct 1 - Wed, Oct 1
Frontier Logo
1:03 pm - 3:22 pmORD-LAS
4h 19mnonstop
Frontier Logo
12:59 am - 11:53 pmLAS-ORD
20h 54m1 stop
$128Frontier
Find Deal
Sun, Oct 5 - Tue, Oct 7
Spirit Airlines Logo
7:09 pm - 7:40 amORD-LAS
14h 31m1 stop
Spirit Airlines Logo
11:13 am - 9:45 pmLAS-ORD
8h 32m1 stop
$129Spirit Airlines
Find Deal
Wed, Oct 1 - Wed, Oct 8
Frontier Logo
9:54 pm - 11:59 pmORD-LAS
4h 05mnonstop
Frontier Logo
10:12 am - 11:53 pmLAS-ORD
11h 41m1 stop
$130Frontier
Find Deal
Mon, Oct 13 - Wed, Oct 22
Spirit Airlines Logo
11:15 am - 1:16 pmORD-LAS
4h 01mnonstop
Spirit Airlines Logo
3:50 pm - 9:32 pmLAS-ORD
3h 42mnonstop
$131Spirit Airlines
Find Deal
Tue, Sep 16 - Sat, Sep 20
Frontier Logo
9:54 pm - 11:59 pmORD-LAS
4h 05mnonstop
Frontier Logo
8:00 am - 12:12 amLAS-ORD
14h 12m1 stop
$132Frontier
Find Deal
Fri, Oct 24 - Tue, Oct 28
Spirit Airlines Logo
11:15 am - 1:16 pmORD-LAS
4h 01mnonstop
Spirit Airlines Logo
6:15 am - 11:51 amLAS-ORD
3h 36mnonstop
$140Spirit Airlines
Find Deal
Wed, Sep 24 - Sat, Sep 27

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
Sep 8
ORD6:05 pmChicago O'Hare Intl
4h 06m
LAS8:11 pmLas Vegas Harry Reid Intl
Sep 12
LAS11:19 amLas Vegas Harry Reid Intl
3h 40m
ORD4:59 pmChicago O'Hare Intl
$127
Find similar
Spirit Airlines
Oct 1
ORD7:09 pmChicago O'Hare Intl
14h 31m
1 stop
LAS7:40 amLas Vegas Harry Reid Intl
Oct 8
LAS11:13 amLas Vegas Harry Reid Intl
8h 32m
1 stop
ORD9:45 pmChicago O'Hare Intl
$129
Find similar
Spirit Airlines
Sep 16
ORD11:15 amChicago O'Hare Intl
4h 01m
LAS1:16 pmLas Vegas Harry Reid Intl
Sep 20
LAS3:50 pmLas Vegas Harry Reid Intl
3h 42m
ORD9:32 pmChicago O'Hare Intl
$131
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
Sep 15
ORD9:54 pmChicago O'Hare Intl
4h 11m
LAS12:05 amLas Vegas Harry Reid Intl
Sep 19
LAS12:59 amLas Vegas Harry Reid Intl
18h 29m
1 stop
ORD9:28 pmChicago O'Hare Intl
$124
Find similar
Frontier
Sep 15
ORD9:54 pmChicago O'Hare Intl
4h 11m
LAS12:05 amLas Vegas Harry Reid Intl
Sep 22
LAS12:55 amLas Vegas Harry Reid Intl
7h 45m
1 stop
ORD10:40 amChicago O'Hare Intl
$126
Find similar
Frontier
Oct 5
ORD1:03 pmChicago O'Hare Intl
4h 19m
LAS3:22 pmLas Vegas Harry Reid Intl
Oct 7
LAS12:59 amLas Vegas Harry Reid Intl
20h 54m
1 stop
ORD11:53 pmChicago O'Hare Intl
$128
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 2, 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 9/15

9:54 pm-12:05 am

Nonstop4h 11m

Las Vegas Harry Reid Intl

Fri 9/19

12:59 am-9:28 pm

1 stop18h 29m

$124

ChicagoLas Vegas

ORD - LAS

ORDLAS

Chicago O'Hare Intl

Mon 9/15

10:42 am-4:09 pm

1 stop7h 27m

Las Vegas Harry Reid Intl

Tue 9/23

1:10 pm-6:51 pm

Nonstop3h 41m

$125

ChicagoLas Vegas

ORD - LAS

ORDLAS

Chicago O'Hare Intl

Tue 9/30

7:09 pm-7:40 am

1 stop14h 31m

Las Vegas Harry Reid Intl

Thu 10/2

5:14 pm-9:37 am

1 stop14h 23m

$126

ChicagoLas Vegas

ORD - LAS

ORDLAS

Chicago O'Hare Intl

Wed 10/1

9:00 am-11:05 am

Nonstop4h 05m

Las Vegas Harry Reid Intl

Wed 10/1

3:50 pm-9:32 pm

Nonstop3h 42m

$127

ChicagoLas Vegas

ORD - LAS

ORDLAS

Chicago O'Hare Intl

Sun 10/5

1:03 pm-3:22 pm

Nonstop4h 19m

Las Vegas Harry Reid Intl

Tue 10/7

12:59 am-11:53 pm

1 stop20h 54m

$128

ChicagoLas Vegas

ORD - LAS

ORDLAS

Chicago O'Hare Intl

Wed 10/1

7:09 pm-7:40 am

1 stop14h 31m

Las Vegas Harry Reid Intl

Wed 10/8

11:13 am-9:45 pm

1 stop8h 32m

$129

ChicagoLas Vegas

ORD - LAS

ORDLAS

Chicago O'Hare Intl

Mon 10/13

9:54 pm-11:59 pm

Nonstop4h 05m

Las Vegas Harry Reid Intl

Wed 10/22

10:12 am-11:53 pm

1 stop11h 41m

$130

ChicagoLas Vegas

ORD - LAS

ORDLAS

Chicago O'Hare Intl

Tue 9/16

11:15 am-1:16 pm

Nonstop4h 01m

Las Vegas Harry Reid Intl

Sat 9/20

3:50 pm-9:32 pm

Nonstop3h 42m

$131

ChicagoLas Vegas

ORD - LAS

ORDLAS

Chicago O'Hare Intl

Fri 10/24

9:54 pm-11:59 pm

Nonstop4h 05m

Las Vegas Harry Reid Intl

Tue 10/28

8:00 am-12:12 am

1 stop14h 12m

$132

ChicagoLas Vegas

ORD - LAS

ORDLAS

Chicago O'Hare Intl

Wed 9/24

11:15 am-1:16 pm

Nonstop4h 01m

Las Vegas Harry Reid Intl

Sat 9/27

6:15 am-11:51 am

Nonstop3h 36m

$140

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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 $209. 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 $237. Flights from Chicago O'Hare Intl Airport to Las Vegas on a Thursday will generally be more expensive and average around $300. 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 $232. 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 $258 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 $195 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.

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 35% 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

$110

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 $110. The best round-trip flight deal from Chicago O'Hare Intl Airport to Las Vegas found on momondo in the last 72 hours is $171.
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 59m.

  • 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 $70Free CancellationRating
5.8
3,198 reviews
Search Frontier flights
Spirit AirlinesPriceFrom $85Free CancellationRating
6.3
8,010 reviews
Search Spirit Airlines flights
SouthwestPriceFrom $159Free CancellationRating
8.0
4,237 reviews
Search Southwest flights
American AirlinesPriceFrom $159Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
United AirlinesPriceFrom $175Free CancellationRating
7.4
8,937 reviews
Search United Airlines flights
DeltaPriceFrom $182Free CancellationRating
7.9
7,973 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 $315. 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 $175 round-trip, depending on your selected dates, with average United Airlines deals seen on momondo around $383. United Airlines operates 26 flights to Las Vegas from Chicago O'Hare Intl Airport in an average week. Users have rated it 7.4/10 across 8,937 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.

An easier way to manage your Las Vegas trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Sun 9/7
Sun 9/14
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States