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Cheap flights from Chicago to Las Vegas from £59

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 18/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags
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Cheap return flights

Spirit Airlines Logo
20:30 - 22:35ORD-LAS
4h 05mdirect
Spirit Airlines Logo
00:50 - 06:25LAS-ORD
3h 35mdirect
£102Spirit Airlines
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Wed, 25 Feb - Fri, 27 Feb
Logo
16:30 - 23:12ORD-LAS
8h 42m1 stop
Logo
00:50 - 06:25LAS-ORD
3h 35mdirect
£104
Find Deal
Thu, 30 Oct - Wed, 5 Nov
Frontier Logo
16:30 - 23:12ORD-LAS
8h 42m1 stop
Frontier Logo
15:20 - 00:15LAS-ORD
6h 55m1 stop
£111Frontier
Find Deal
Thu, 30 Oct - Thu, 6 Nov
United Airlines Logo
19:37 - 21:49ORD-LAS
4h 12mdirect
United Airlines Logo
23:59 - 05:33LAS-ORD
3h 34mdirect
£114United Airlines
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Sat, 8 Nov - Sat, 8 Nov
Southwest Logo
13:00 - 15:05ORD-LAS
4h 05mdirect
Southwest Logo
08:25 - 14:05LAS-ORD
3h 40mdirect
£117Southwest
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Wed, 12 Nov - Sat, 15 Nov
Spirit Airlines Logo
08:41 - 22:50ORD-LAS
16h 09m1 stop
Spirit Airlines Logo
00:50 - 06:25LAS-ORD
3h 35mdirect
£122Spirit Airlines
Find Deal
Mon, 10 Nov - Thu, 13 Nov
Alaska Airlines Logo
09:15 - 14:17ORD-LAS
7h 02m1 stop
Alaska Airlines Logo
06:00 - 14:09LAS-ORD
6h 09m1 stop
£131Alaska Airlines
Find Deal
Tue, 9 Dec - Fri, 12 Dec
Southwest Logo
06:15 - 08:15ORD-LAS
4h 00mdirect
Southwest Logo
18:00 - 23:40LAS-ORD
3h 40mdirect
£132Southwest
Find Deal
Sun, 5 Oct - Sat, 11 Oct
United Airlines Logo
19:37 - 21:49ORD-LAS
4h 12mdirect
United Airlines Logo
23:59 - 05:33LAS-ORD
3h 34mdirect
£135United Airlines
Find Deal
Fri, 31 Oct - Wed, 5 Nov
Alaska Airlines Logo
15:05 - 22:27ORD-LAS
9h 22m1 stop
Alaska Airlines Logo
14:57 - 23:50LAS-ORD
6h 53m1 stop
£136Alaska Airlines
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Wed, 10 Dec - Sat, 13 Dec

United Airlines flights from Chicago to Las Vegas

Our best United Airlines deals on Chicago to Las Vegas flight tickets
United Airlines
8 Nov
ORD19:37Chicago O'Hare Intl
4h 12m
LAS21:49Las Vegas Harry Reid Intl
8 Nov
LAS23:59Las Vegas Harry Reid Intl
3h 34m
ORD05:33Chicago O'Hare Intl
£114
Find similar
United Airlines
31 Oct
ORD19:37Chicago O'Hare Intl
4h 12m
LAS21:49Las Vegas Harry Reid Intl
1 Nov
LAS23:59Las Vegas Harry Reid Intl
3h 34m
ORD05:33Chicago O'Hare Intl
£135
Find similar
United Airlines
24 Nov
ORD07:30Chicago O'Hare Intl
4h 09m
LAS09:39Las Vegas Harry Reid Intl
28 Nov
LAS23:59Las Vegas Harry Reid Intl
3h 34m
ORD05:33Chicago O'Hare Intl
£143
Find similar

Southwest flights from Chicago to Las Vegas

Our best Southwest deals on Chicago to Las Vegas flight tickets
Southwest
12 Nov
ORD13:00Chicago O'Hare Intl
4h 05m
LAS15:05Las Vegas Harry Reid Intl
15 Nov
LAS08:25Las Vegas Harry Reid Intl
3h 40m
ORD14:05Chicago O'Hare Intl
£117
Find similar
Southwest
5 Oct
ORD06:15Chicago O'Hare Intl
4h 00m
LAS08:15Las Vegas Harry Reid Intl
11 Oct
LAS18:00Las Vegas Harry Reid Intl
3h 40m
ORD23:40Chicago O'Hare Intl
£132
Find similar
Southwest
14 Oct
ORD13:50Chicago O'Hare Intl
10h 15m
1 stop
LAS22:05Las Vegas Harry Reid Intl
21 Oct
LAS18:00Las Vegas Harry Reid Intl
3h 40m
ORD23:40Chicago O'Hare Intl
£142
Find similar

momondo Fare Finder

 
Customise 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 279,928 searches. Data last updated 15 September 2025.
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

Wed 25/2

20:30-22:35

Nonstop4h 05m

Las Vegas Harry Reid Intl

Fri 27/2

00:50-06:25

Nonstop3h 35m

£102

ChicagoLas Vegas

ORD - LAS

ORDLAS

Chicago O'Hare Intl

Thu 30/10

16:30-23:12

1 stop8h 42m

Las Vegas Harry Reid Intl

Wed 5/11

00:50-06:25

Nonstop3h 35m

£104

ChicagoLas Vegas

ORD - LAS

ORDLAS

Chicago O'Hare Intl

Thu 30/10

16:30-23:12

1 stop8h 42m

Las Vegas Harry Reid Intl

Thu 6/11

15:20-00:15

1 stop6h 55m

£111

ChicagoLas Vegas

ORD - LAS

ORDLAS

Chicago O'Hare Intl

Sat 8/11

19:37-21:49

Nonstop4h 12m

Las Vegas Harry Reid Intl

Sat 8/11

23:59-05:33

Nonstop3h 34m

£114

ChicagoLas Vegas

ORD - LAS

ORDLAS

Chicago O'Hare Intl

Wed 12/11

13:00-15:05

Nonstop4h 05m

Las Vegas Harry Reid Intl

Sat 15/11

08:25-14:05

Nonstop3h 40m

£117

ChicagoLas Vegas

ORD - LAS

ORDLAS

Chicago O'Hare Intl

Mon 10/11

08:41-22:50

1 stop16h 09m

Las Vegas Harry Reid Intl

Thu 13/11

00:50-06:25

Nonstop3h 35m

£122

ChicagoLas Vegas

ORD - LAS

ORDLAS

Chicago O'Hare Intl

Tue 9/12

09:15-14:17

1 stop7h 02m

Las Vegas Harry Reid Intl

Fri 12/12

06:00-14:09

1 stop6h 09m

£131

ChicagoLas Vegas

ORD - LAS

ORDLAS

Chicago O'Hare Intl

Sun 5/10

06:15-08:15

Nonstop4h 00m

Las Vegas Harry Reid Intl

Sat 11/10

18:00-23:40

Nonstop3h 40m

£132

ChicagoLas Vegas

ORD - LAS

ORDLAS

Chicago O'Hare Intl

Fri 31/10

19:37-21:49

Nonstop4h 12m

Las Vegas Harry Reid Intl

Wed 5/11

23:59-05:33

Nonstop3h 34m

£135

ChicagoLas Vegas

ORD - LAS

ORDLAS

Chicago O'Hare Intl

Wed 10/12

15:05-22:27

1 stop9h 22m

Las Vegas Harry Reid Intl

Sat 13/12

14:57-23:50

1 stop6h 53m

£136

Flights are sorted by cheapest return 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?

In general, January is the cheapest month to fly from Chicago to Las Vegas. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around £165. If you’re not able to fly to Las Vegas in January, then February is your next best option. Flight prices from Chicago to Las Vegas during February average around £167.

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

The cheapest day to depart on your flight to Las Vegas is on a Friday when prices can be found for as low as £137. This is often the case because there is less demand to fly during this day of the week. On the other hand, Wednesday is the most expensive day to depart from Chicago because it is more convenient for both business and leisure travellers. As a result, prices tend to be around £593.

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

Our data shows that the cheapest Chicago to Las Vegas flights are usually those with departure times at midday. Our users have found flights to Las Vegas at midday for as low as £90. Flights to Las Vegas are more costly in the afternoon, with an average ticket price of £172. Departure times in the afternoon 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 £190 when searching weeks before you fly. 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 £144 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 September 2025, prices for Chicago to Las Vegas flights are approximately 34% 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 return 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

Fastest flight time

3h 53m

Direct flights

Every day

Airports in Las Vegas

1 airport
The fastest flight from Chicago to Las Vegas takes 3h 53m
Direct flights go from Chicago 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 to Las Vegas Harry Reid Intl by plane?

    Las Vegas Harry Reid Intl is 1519.9 mi away from Chicago. Typically, this will take 3h 58m by plane in normal conditions.

  • 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 are updated 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?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check 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 required for your trip to Las Vegas Harry Reid Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Las Vegas Harry Reid Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular plane model 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
Spirit AirlinesPriceFrom £33Free CancellationRating
6.3
8,016 reviews
Search Spirit Airlines flights

  • Spirit Airlines Flights From Chicago to Las Vegas

    Spirit Airlines flies from Chicago to Las Vegas around 11 times per week, with 8,016 momondo users rating the airline 6.3/10. The cheapest Spirit Airlines deal from Chicago to Las Vegas in the last 72 hours was £45 (round-trip), much lower than the average airfare cost of £223 for Spirit Airlines flights on this route.

Travelling to a place near Las Vegas?

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

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?

Yes. momondo allows you to filter the results for Chicago to Las Vegas flights to just show those with flexible booking policies.

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?

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.

An easier way to manage your Las Vegas trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.
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