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Cheap flights from Chicago to Las Vegas from £49

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 6/12. 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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Cheap return flights

Spirit Airlines Logo
09:00 - 11:05ORD-LAS
4h 05mdirect
Spirit Airlines Logo
06:15 - 11:51LAS-ORD
3h 36mdirect
£87Spirit Airlines
Find Deal
Sat, 13 Sep - Sat, 20 Sep
Spirit Airlines Logo
17:35 - 19:27ORD-LAS
3h 52mdirect
Spirit Airlines Logo
23:10 - 04:50LAS-ORD
3h 40mdirect
£88Spirit Airlines
Find Deal
Mon, 25 Aug - Thu, 28 Aug
Frontier Logo
21:54 - 00:05ORD-LAS
4h 11mdirect
Frontier Logo
14:57 - 20:59LAS-ORD
4h 02mdirect
£96Frontier
Find Deal
Fri, 12 Sep - Fri, 19 Sep
Spirit Airlines Logo
12:46 - 14:45ORD-LAS
3h 59mdirect
Spirit Airlines Logo
00:47 - 10:42LAS-ORD
7h 55m1 stop
£116Spirit Airlines
Find Deal
Sat, 13 Sep - Fri, 19 Sep
Southwest Logo
17:45 - 19:35ORD-LAS
3h 50mdirect
Southwest Logo
17:55 - 23:40LAS-ORD
3h 45mdirect
£119Southwest
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Wed, 17 Sep - Fri, 19 Sep
United Airlines Logo
19:44 - 21:56ORD-LAS
4h 12mdirect
United Airlines Logo
23:59 - 05:33LAS-ORD
3h 34mdirect
£126United Airlines
Find Deal
Mon, 8 Dec - Mon, 8 Dec
Logo
21:54 - 00:05ORD-LAS
4h 11mdirect
Logo
18:05 - 05:00LAS-ORD
8h 55m1 stop
£130
Find Deal
Fri, 12 Sep - Fri, 19 Sep
United Airlines Logo
19:45 - 21:48ORD-LAS
4h 03mdirect
United Airlines Logo
23:59 - 05:39LAS-ORD
3h 40mdirect
£131United Airlines
Find Deal
Tue, 26 Aug - Tue, 2 Sep
Southwest Logo
13:30 - 20:40ORD-LAS
9h 10m2 stops
Southwest Logo
17:55 - 23:40LAS-ORD
3h 45mdirect
£141Southwest
Find Deal
Mon, 22 Sep - Thu, 25 Sep
Frontier Logo
21:54 - 00:05ORD-LAS
4h 11mdirect
Frontier Logo
00:59 - 09:37LAS-ORD
6h 38m1 stop
£147Frontier
Find Deal
Fri, 12 Sep - Thu, 18 Sep

Frontier flights from Chicago to Las Vegas

Our best Frontier deals on Chicago to Las Vegas flight tickets
Frontier
12 Sept
ORD21:54Chicago O'Hare Intl
4h 11m
LAS00:05Las Vegas Harry Reid Intl
19 Sept
LAS14:57Las Vegas Harry Reid Intl
4h 02m
ORD20:59Chicago O'Hare Intl
£96
Find similar
Frontier
12 Sept
ORD21:54Chicago O'Hare Intl
4h 11m
LAS00:05Las Vegas Harry Reid Intl
18 Sept
LAS00:59Las Vegas Harry Reid Intl
6h 38m
1 stop
ORD09:37Chicago O'Hare Intl
£147
Find similar
Frontier
25 Aug
ORD21:45Chicago O'Hare Intl
4h 09m
LAS23:54Las Vegas Harry Reid Intl
27 Aug
LAS00:59Las Vegas Harry Reid Intl
7h 38m
1 stop
ORD10:37Chicago O'Hare Intl
£152
Find similar

United Airlines flights from Chicago to Las Vegas

Our best United Airlines deals on Chicago to Las Vegas flight tickets
United Airlines
8 Dec
ORD19:44Chicago O'Hare Intl
4h 12m
LAS21:56Las Vegas Harry Reid Intl
8 Dec
LAS23:59Las Vegas Harry Reid Intl
3h 34m
ORD05:33Chicago O'Hare Intl
£126
Find similar
United Airlines
26 Aug
ORD19:45Chicago O'Hare Intl
4h 03m
LAS21:48Las Vegas Harry Reid Intl
2 Sept
LAS23:59Las Vegas Harry Reid Intl
3h 40m
ORD05:39Chicago O'Hare Intl
£131
Find similar
United Airlines
28 Aug
ORD09:12Chicago O'Hare Intl
4h 04m
LAS11:16Las Vegas Harry Reid Intl
2 Sept
LAS23:59Las Vegas Harry Reid Intl
3h 40m
ORD05:39Chicago O'Hare Intl
£137
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 31 July 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

Sat 13/9

09:00-11:05

Nonstop4h 05m

Las Vegas Harry Reid Intl

Sat 20/9

06:15-11:51

Nonstop3h 36m

£87

ChicagoLas Vegas

ORD - LAS

ORDLAS

Chicago O'Hare Intl

Mon 25/8

17:35-19:27

Nonstop3h 52m

Las Vegas Harry Reid Intl

Thu 28/8

23:10-04:50

Nonstop3h 40m

£88

ChicagoLas Vegas

ORD - LAS

ORDLAS

Chicago O'Hare Intl

Fri 12/9

21:54-00:05

Nonstop4h 11m

Las Vegas Harry Reid Intl

Fri 19/9

14:57-20:59

Nonstop4h 02m

£96

ChicagoLas Vegas

ORD - LAS

ORDLAS

Chicago O'Hare Intl

Sat 13/9

12:46-14:45

Nonstop3h 59m

Las Vegas Harry Reid Intl

Fri 19/9

00:47-10:42

1 stop7h 55m

£116

ChicagoLas Vegas

ORD - LAS

ORDLAS

Chicago O'Hare Intl

Wed 17/9

17:45-19:35

Nonstop3h 50m

Las Vegas Harry Reid Intl

Fri 19/9

17:55-23:40

Nonstop3h 45m

£119

ChicagoLas Vegas

ORD - LAS

ORDLAS

Chicago O'Hare Intl

Mon 8/12

19:44-21:56

Nonstop4h 12m

Las Vegas Harry Reid Intl

Mon 8/12

23:59-05:33

Nonstop3h 34m

£126

ChicagoLas Vegas

ORD - LAS

ORDLAS

Chicago O'Hare Intl

Fri 12/9

21:54-00:05

Nonstop4h 11m

Las Vegas Harry Reid Intl

Fri 19/9

18:05-05:00

1 stop8h 55m

£130

ChicagoLas Vegas

ORD - LAS

ORDLAS

Chicago O'Hare Intl

Tue 26/8

19:45-21:48

Nonstop4h 03m

Las Vegas Harry Reid Intl

Tue 2/9

23:59-05:39

Nonstop3h 40m

£131

ChicagoLas Vegas

ORD - LAS

ORDLAS

Chicago O'Hare Intl

Mon 22/9

13:30-20:40

2 stops9h 10m

Las Vegas Harry Reid Intl

Thu 25/9

17:55-23:40

Nonstop3h 45m

£141

ChicagoLas Vegas

ORD - LAS

ORDLAS

Chicago O'Hare Intl

Fri 12/9

21:54-00:05

Nonstop4h 11m

Las Vegas Harry Reid Intl

Thu 18/9

00:59-09:37

1 stop6h 38m

£147

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, August 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 £158. If you’re not able to fly to Las Vegas in August, then September is your next best option. Flight prices from Chicago to Las Vegas during September 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 £140. This is often the case because there is less demand to fly during this day of the week. On the other hand, Saturday 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 £381.

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 £124. Flights to Las Vegas are more costly in the evening, with an average ticket price of £168. Departure times in the evening 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 £192 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 £149 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.

How have Chicago to Las Vegas flight prices changed over time?

As of July 2025, prices for Chicago to Las Vegas flights are approximately 22% cheaper 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

Best price found

£49

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 in the past 72 hours is £49. The best return flight deal from Chicago to Las Vegas found on momondo in the last 72 hours is £87.
The fastest flight from Chicago to Las Vegas takes 3h 45m
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 45m 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
8,048 reviews
Search Spirit Airlines flights

  • Spirit Airlines Flights From Chicago to Las Vegas

    Spirit Airlines flies from Chicago to Las Vegas around 14 times per week, with 8,048 momondo users rating the airline 6.3/10. The cheapest Spirit Airlines deal from Chicago to Las Vegas in the last 72 hours was £44 (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
Kingman
Paradise
Laughlin
Henderson
North Las Vegas
Needles
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

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