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Cheap flights from Las Vegas to Chicago from $66

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Las Vegas to Chicago departing on 12/17. 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 round-trip flights

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Frontier Logo
6:00 am - 11:42 amLAS-ORD
3h 42mnonstop
Frontier Logo
12:59 pm - 3:15 pmORD-LAS
4h 16mnonstop
$89Frontier
Find Deal
Fri, Dec 5 - Mon, Dec 8
Frontier Logo
8:47 am - 11:42 pmLAS-ORD
12h 55m1 stop
Frontier Logo
12:59 pm - 3:15 pmORD-LAS
4h 16mnonstop
$91Frontier
Find Deal
Fri, Dec 5 - Mon, Dec 8
Frontier Logo
12:52 pm - 10:24 pmLAS-ORD
7h 32m1 stop
Frontier Logo
12:59 pm - 3:15 pmORD-LAS
4h 16mnonstop
$93Frontier
Find Deal
Thu, Dec 11 - Sun, Dec 14
Frontier Logo
9:00 am - 5:41 pmLAS-ORD
6h 41m1 stop
Frontier Logo
10:32 pm - 12:41 amORD-LAS
4h 09mnonstop
$94Frontier
Find Deal
Sat, Jan 10 - Mon, Jan 12
Frontier Logo
3:42 pm - 9:32 pmLAS-ORD
3h 50mnonstop
Frontier Logo
6:15 am - 10:21 amORD-LAS
6h 06m1 stop
$97Frontier
Find Deal
Fri, Jan 9 - Sun, Jan 11
Frontier Logo
6:00 am - 11:42 amLAS-ORD
3h 42mnonstop
Frontier Logo
7:00 am - 11:42 pmORD-LAS
18h 42m1 stop
$98Frontier
Find Deal
Fri, Dec 5 - Sun, Dec 7
Frontier Logo
3:42 pm - 9:32 pmLAS-ORD
3h 50mnonstop
Frontier Logo
2:30 pm - 7:16 amORD-LAS
18h 46m1 stop
$99Frontier
Find Deal
Fri, Jan 9 - Sun, Jan 18
Frontier Logo
3:42 pm - 9:32 pmLAS-ORD
3h 50mnonstop
Frontier Logo
2:30 pm - 7:16 amORD-LAS
18h 46m1 stop
$100Frontier
Find Deal
Fri, Jan 9 - Sun, Jan 18
Frontier Logo
11:30 am - 12:59 amLAS-ORD
11h 29m1 stop
Frontier Logo
12:59 pm - 3:15 pmORD-LAS
4h 16mnonstop
$101Frontier
Find Deal
Thu, Nov 27 - Mon, Dec 8
Frontier Logo
12:59 am - 12:12 amLAS-ORD
21h 13m1 stop
Frontier Logo
12:59 pm - 3:15 pmORD-LAS
4h 16mnonstop
$102Frontier
Find Deal
Thu, Dec 4 - Mon, Dec 8

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

Our best American Airlines deals on Las Vegas to Chicago O'Hare Intl Airport flight tickets
American Airlines
Dec 11
LAS11:55 pmLas Vegas Harry Reid Intl
3h 31m
ORD5:26 amChicago O'Hare Intl
Dec 13
ORD8:44 pmChicago O'Hare Intl
4h 11m
LAS10:55 pmLas Vegas Harry Reid Intl
$141
Find similar
American Airlines
Dec 6
LAS11:55 pmLas Vegas Harry Reid Intl
3h 31m
ORD5:26 amChicago O'Hare Intl
Dec 8
ORD7:10 amChicago O'Hare Intl
4h 03m
LAS9:13 amLas Vegas Harry Reid Intl
$151
Find similar
American Airlines
Dec 26
LAS11:59 pmLas Vegas Harry Reid Intl
3h 42m
ORD5:41 amChicago O'Hare Intl
Jan 6
ORD7:40 pmChicago O'Hare Intl
4h 08m
LAS9:48 pmLas Vegas Harry Reid Intl
$159
Find similar

Frontier flights from Las Vegas to Chicago O'Hare Intl Airport

Our best Frontier deals on Las Vegas to Chicago O'Hare Intl Airport flight tickets
Frontier
Dec 5
LAS6:00 amLas Vegas Harry Reid Intl
3h 42m
ORD11:42 amChicago O'Hare Intl
Dec 8
ORD12:59 pmChicago O'Hare Intl
4h 16m
LAS3:15 pmLas Vegas Harry Reid Intl
$89
Find similar
Frontier
Dec 5
LAS8:47 amLas Vegas Harry Reid Intl
12h 55m
1 stop
ORD11:42 pmChicago O'Hare Intl
Dec 8
ORD12:59 pmChicago O'Hare Intl
4h 16m
LAS3:15 pmLas Vegas Harry Reid Intl
$91
Find similar
Frontier
Dec 11
LAS12:52 pmLas Vegas Harry Reid Intl
7h 32m
1 stop
ORD10:24 pmChicago O'Hare Intl
Dec 14
ORD12:59 pmChicago O'Hare Intl
4h 16m
LAS3:15 pmLas Vegas Harry Reid Intl
$93
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Las Vegas to Chicago O'Hare Intl Airport 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 November 17, 2025.
Use the filters below to find and compare flights from Las Vegas to Chicago O'Hare Intl Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Las VegasChicago

LAS - ORD

LASORD

Las Vegas Harry Reid Intl

Fri 12/5

6:00 am-11:42 am

Nonstop3h 42m

Chicago O'Hare Intl

Mon 12/8

12:59 pm-3:15 pm

Nonstop4h 16m

$89

Las VegasChicago

LAS - ORD

LASORD

Las Vegas Harry Reid Intl

Fri 12/5

8:47 am-11:42 pm

1 stop12h 55m

Chicago O'Hare Intl

Mon 12/8

12:59 pm-3:15 pm

Nonstop4h 16m

$91

Las VegasChicago

LAS - ORD

LASORD

Las Vegas Harry Reid Intl

Thu 12/11

12:52 pm-10:24 pm

1 stop7h 32m

Chicago O'Hare Intl

Sun 12/14

12:59 pm-3:15 pm

Nonstop4h 16m

$93

Las VegasChicago

LAS - ORD

LASORD

Las Vegas Harry Reid Intl

Sat 1/10

9:00 am-5:41 pm

1 stop6h 41m

Chicago O'Hare Intl

Mon 1/12

10:32 pm-12:41 am

Nonstop4h 09m

$94

Las VegasChicago

LAS - ORD

LASORD

Las Vegas Harry Reid Intl

Fri 1/9

3:42 pm-9:32 pm

Nonstop3h 50m

Chicago O'Hare Intl

Sun 1/11

6:15 am-10:21 am

1 stop6h 06m

$97

Las VegasChicago

LAS - ORD

LASORD

Las Vegas Harry Reid Intl

Fri 12/5

6:00 am-11:42 am

Nonstop3h 42m

Chicago O'Hare Intl

Sun 12/7

7:00 am-11:42 pm

1 stop18h 42m

$98

Las VegasChicago

LAS - ORD

LASORD

Las Vegas Harry Reid Intl

Fri 1/9

3:42 pm-9:32 pm

Nonstop3h 50m

Chicago O'Hare Intl

Sun 1/18

2:30 pm-7:16 am

1 stop18h 46m

$99

Las VegasChicago

LAS - ORD

LASORD

Las Vegas Harry Reid Intl

Fri 1/9

3:42 pm-9:32 pm

Nonstop3h 50m

Chicago O'Hare Intl

Sun 1/18

2:30 pm-7:16 am

1 stop18h 46m

$100

Las VegasChicago

LAS - ORD

LASORD

Las Vegas Harry Reid Intl

Thu 11/27

11:30 am-12:59 am

1 stop11h 29m

Chicago O'Hare Intl

Mon 12/8

12:59 pm-3:15 pm

Nonstop4h 16m

$101

Las VegasChicago

LAS - ORD

LASORD

Las Vegas Harry Reid Intl

Thu 12/4

12:59 am-12:12 am

1 stop21h 13m

Chicago O'Hare Intl

Mon 12/8

12:59 pm-3:15 pm

Nonstop4h 16m

$102

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 Chicago from

How to get the cheapest flight ticket from Las Vegas to Chicago O'Hare Intl Airport

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 Chicago O'Hare Intl Airport?

The month of February is another great option to travel to Chicago O'Hare Intl Airport, with average flight prices from Las Vegas averaging around $216.

What is the cheapest day to depart on your flight to Chicago O'Hare Intl Airport?

The cheapest day to depart on your flight to Chicago O'Hare Intl Airport is on a Friday when prices can be found for as low as $298. This is often the case because there is less demand to fly during this day of the week. On the other hand, Sunday is the most expensive day to depart from Las Vegas because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $509.

What is the cheapest time of day to depart on your flight to Chicago O'Hare Intl Airport?

Flying to Chicago O'Hare Intl Airport from Las Vegas in the evening is the least expensive time of day to depart. momondo users have found prices as low as $293 when looking at flights departing in the evening. Try not to purchase tickets at noon because they tend to be around $479. Of course, these prices can vary depending on the time of year and what airport you fly to.

What is the cheapest Las Vegas Harry Reid Intl to Chicago O'Hare Intl flight route?

Fly from Las Vegas Harry Reid Intl to Chicago O'Hare Intl for the best Las Vegas Harry Reid Intl - Chicago O'Hare Intl flight prices

How far in advance should I book a flight to Chicago O'Hare Intl Airport?

You are more likely to see cheaper flights to Chicago O'Hare Intl Airport from Las Vegas when booking weeks ahead of your departure date. In general, you can expect to find flights to Chicago O'Hare Intl Airport for around $248 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Chicago O'Hare Intl Airport from Las Vegas for as low as $184 on momondo.

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

There are 4 cabin classes available to choose from on Las Vegas Harry Reid Intl to Chicago O'Hare Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

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

As of November 2025, prices for Las Vegas to Chicago O'Hare Intl Airport flights are approximately 0% more expensive when compared to flights at the same time last year.

When to book flights from Las Vegas to Chicago O'Hare Intl Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Las Vegas to Chicago O'Hare Intl Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Las Vegas to Chicago O'Hare Intl Airport (LAS to ORD) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Las Vegas to Chicago O'Hare Intl Airport

Best Price Found

$111

Fastest flight time

3h 31m

Direct flights

Every day
The best one-way flight to Chicago O'Hare Intl Airport from Las Vegas in the past 72 hours is $111. The best round-trip flight deal from Las Vegas to Chicago O'Hare Intl Airport found on momondo in the last 72 hours is $194.
The fastest flight from Las Vegas to Chicago O'Hare Intl Airport takes 3h 31m
Direct flights go from Las Vegas to Chicago O'Hare Intl Airport every day.
Search flight deals

  • How far is Las Vegas Harry Reid Intl to Chicago O'Hare Intl by plane?

    Las Vegas Harry Reid Intl and Chicago O'Hare Intl are 1506.6 mi apart from one another. Typically, this will take 3h 31m by plane in normal conditions.

  • When did momondo last update prices for flights from Las Vegas Harry Reid Intl Airport to Chicago O'Hare Intl Airport?

    Prices for flights from Las Vegas Harry Reid Intl Airport to Chicago O'Hare Intl Airport refresh daily.

  • How many operators does momondo search for flights from Las Vegas Harry Reid Intl Airport to Chicago O'Hare Intl Airport?

  • How old do you have to be to fly from Las Vegas Harry Reid Intl Airport to Chicago O'Hare 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 Las Vegas Harry Reid Intl Airport to Chicago O'Hare Intl Airport.

  • What documentation or ID do you need to fly to Chicago O'Hare Intl Airport?

    The travel and health documents required for your trip to Chicago O'Hare 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 Chicago O'Hare 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 Las Vegas to Chicago O'Hare Intl Airport?

  • What is the most popular airline from Las Vegas to Chicago O'Hare Intl Airport?

Best airlines flying from Las Vegas to Chicago O'Hare Intl Airport

Compare and see reviews for airlines that fly from Las Vegas to Chicago O'Hare Intl Airport with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $61Free CancellationRating
5.8
3,106 reviews
Search Frontier flights
Spirit AirlinesPriceFrom $96Free CancellationRating
6.3
8,144 reviews
Search Spirit Airlines flights
United AirlinesPriceFrom $159Free CancellationRating
7.4
9,013 reviews
Search United Airlines flights
SouthwestPriceFrom $159Free CancellationRating
8.0
4,244 reviews
Search Southwest flights
American AirlinesPriceFrom $159Free CancellationRating
7.2
11,050 reviews
Search American Airlines flights

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

    Southwest operates around 17 flights from Las Vegas to Chicago O'Hare Intl Airport every week. The average price of these flights found in the last 72 hours has been $289, but momondo users have found Southwest deals from Las Vegas to Chicago O'Hare Intl Airport from as low as $159 round-trip. Southwest has been scored 8.0/10 in 4,244 reviews.

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

    United Airlines (7.4/10 from 9,013 reviews) operates around 40 flights from Las Vegas to Chicago O'Hare Intl Airport in any given week. The average United Airlines airfare for this route is around $321, with deals from around $159 rare but found on momondo. Referenced prices are for round-trip Las Vegas to Chicago O'Hare Intl Airport flight searches in the last 72 hours.

Traveling to a place near Chicago?

Book flights to Chicago if you plan to visit one of these locations
Lake Geneva
South Haven
Schaumburg
Rockford
Merrillville
Gurnee
Naperville
Rosemont
Kenosha
New Buffalo
Joliet
Oak Brook
Orland Park
Racine
Hammond
Tinley Park
Janesville
Aurora
Elgin
Benton Harbor

Why use momondo?

Why should I use momondo to find a flight deal from Las Vegas to Chicago?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Chicago from Las Vegas.

Can I find flights from Las Vegas to Chicago with flexible booking policies on momondo?

All flight searches from Las Vegas to Chicago on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Las Vegas to Chicago?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Chicago from Las Vegas.

I’m not ready to book a flight from Las Vegas to Chicago right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Las Vegas to Chicago flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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