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Cheap flights from Chicago O'Hare Intl Airport to Las Vegas from $42

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 8/16. 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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Find the cheapest flights from Chicago O'Hare Intl Airport to Las Vegas

Cheap round-trip flights

Spirit Airlines Logo
3:21 pm - 5:16 pmORD-LAS
3h 55mnonstop
Spirit Airlines Logo
8:32 am - 2:16 pmLAS-ORD
3h 44mnonstop
$97Spirit Airlines
Find Deal
Fri, Oct 24 - Mon, Oct 27
Spirit Airlines Logo
6:00 am - 7:45 amORD-LAS
3h 45mnonstop
Spirit Airlines Logo
11:10 pm - 4:50 amLAS-ORD
3h 40mnonstop
$103Spirit Airlines
Find Deal
Sun, Aug 17 - Wed, Aug 20
Spirit Airlines Logo
3:18 pm - 5:19 pmORD-LAS
4h 01mnonstop
Spirit Airlines Logo
12:34 am - 6:03 amLAS-ORD
3h 29mnonstop
$104Spirit Airlines
Find Deal
Thu, Aug 7 - Fri, Aug 8
Spirit Airlines Logo
3:21 pm - 5:16 pmORD-LAS
3h 55mnonstop
Spirit Airlines Logo
8:32 am - 2:16 pmLAS-ORD
3h 44mnonstop
$106Spirit Airlines
Find Deal
Mon, Oct 20 - Sat, Oct 25
Frontier Logo
9:52 pm - 11:58 pmORD-LAS
4h 06mnonstop
Frontier Logo
2:59 pm - 8:59 pmLAS-ORD
4h 00mnonstop
$107Frontier
Find Deal
Mon, Oct 27 - Fri, Oct 31
Spirit Airlines Logo
3:21 pm - 5:16 pmORD-LAS
3h 55mnonstop
Spirit Airlines Logo
5:56 pm - 11:43 pmLAS-ORD
3h 47mnonstop
$110Spirit Airlines
Find Deal
Sat, Nov 1 - Thu, Nov 6
Spirit Airlines Logo
6:00 am - 7:45 amORD-LAS
3h 45mnonstop
Spirit Airlines Logo
11:10 pm - 4:50 amLAS-ORD
3h 40mnonstop
$111Spirit Airlines
Find Deal
Tue, Aug 19 - Mon, Aug 25
Frontier Logo
9:45 pm - 11:54 pmORD-LAS
4h 09mnonstop
Frontier Logo
6:00 am - 11:48 amLAS-ORD
3h 48mnonstop
$112Frontier
Find Deal
Mon, Sep 1 - Thu, Sep 4
Frontier Logo
9:47 pm - 11:58 pmORD-LAS
4h 11mnonstop
Frontier Logo
2:50 pm - 8:52 pmLAS-ORD
4h 02mnonstop
$114Frontier
Find Deal
Fri, Sep 5 - Mon, Sep 8
Southwest Logo
6:15 am - 8:05 amORD-LAS
3h 50mnonstop
Southwest Logo
8:40 am - 2:25 pmLAS-ORD
3h 45mnonstop
$159Southwest
Find Deal
Sat, Aug 16 - Fri, Aug 22

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 24
ORD3:21 pmChicago O'Hare Intl
3h 55m
LAS5:16 pmLas Vegas Harry Reid Intl
Oct 27
LAS8:32 amLas Vegas Harry Reid Intl
3h 44m
ORD2:16 pmChicago O'Hare Intl
$97
Find similar
Spirit Airlines
Aug 17
ORD6:00 amChicago O'Hare Intl
3h 45m
LAS7:45 amLas Vegas Harry Reid Intl
Aug 20
LAS11:10 pmLas Vegas Harry Reid Intl
3h 40m
ORD4:50 amChicago O'Hare Intl
$103
Find similar
Spirit Airlines
Aug 7
ORD3:18 pmChicago O'Hare Intl
4h 01m
LAS5:19 pmLas Vegas Harry Reid Intl
Aug 8
LAS12:34 amLas Vegas Harry Reid Intl
3h 29m
ORD6:03 amChicago O'Hare Intl
$104
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
Oct 27
ORD9:52 pmChicago O'Hare Intl
4h 06m
LAS11:58 pmLas Vegas Harry Reid Intl
Oct 31
LAS2:59 pmLas Vegas Harry Reid Intl
4h 00m
ORD8:59 pmChicago O'Hare Intl
$107
Find similar
Frontier
Sep 1
ORD9:45 pmChicago O'Hare Intl
4h 09m
LAS11:54 pmLas Vegas Harry Reid Intl
Sep 4
LAS6:00 amLas Vegas Harry Reid Intl
3h 48m
ORD11:48 amChicago O'Hare Intl
$112
Find similar
Frontier
Sep 5
ORD9:47 pmChicago O'Hare Intl
4h 11m
LAS11:58 pmLas Vegas Harry Reid Intl
Sep 8
LAS2:50 pmLas Vegas Harry Reid Intl
4h 02m
ORD8:52 pmChicago O'Hare Intl
$114
Find similar

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 $206. 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 $223.

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 $229. Flights from Chicago O'Hare Intl Airport to Las Vegas on a Thursday will generally be more expensive and average around $289. 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 $228. Flights to Las Vegas are more costly in the morning, with an average ticket price of $306. 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 $256 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 $199 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 July 2025, prices for Chicago O'Hare Intl Airport to Las Vegas flights are approximately 41% 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

$42

Fastest flight time

3h 45m

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 $42. The best round-trip flight deal from Chicago O'Hare Intl Airport to Las Vegas found on momondo in the last 72 hours is $97.
The fastest flight from Chicago O'Hare Intl Airport to Las Vegas takes 3h 45m
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)
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  • 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 45m.

  • 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 $68Free CancellationRating
5.9
3,252 reviews
Search Frontier flights
Spirit AirlinesPriceFrom $77Free CancellationRating
6.3
8,038 reviews
Search Spirit Airlines flights
American AirlinesPriceFrom $159Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
United AirlinesPriceFrom $175Free CancellationRating
7.4
8,864 reviews
Search United Airlines flights
SouthwestPriceFrom $178Free CancellationRating
8.0
4,239 reviews
Search Southwest flights
Sun Country AirPriceFrom $203Free CancellationRating
6.9
334 reviews
Search Sun Country Air flights
Alaska AirlinesPriceFrom $222Free CancellationRating
8.0
10,000 reviews
Search Alaska Airlines flights
DeltaPriceFrom $236Free CancellationRating
8.0
7,959 reviews
Search Delta 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 $178 round-trip, up to an average price of $329. 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 $381. United Airlines operates 29 flights to Las Vegas from Chicago O'Hare Intl Airport in an average week. Users have rated it 7.4/10 across 8,864 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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