What airlines fly to Chicago?

Spirit Airlines, American Airlines and Frontier are the top three most popular airlines that fly to Chicago from Las Vegas according to our data. Spirit Airlines is the first choice among our users, with 33% of people opting to fly with this airline when traveling to Chicago. Keep in mind that there are 7 different airlines that fly to Chicago on a routine basis, so you have a few additional options to choose from.

What is the cheapest airline that flies from Las Vegas Harry Reid Intl to Chicago?

Spirit Airlines, Allegiant Air, and Frontier are the most popular carriers operating from Las Vegas Harry Reid Intl to Chicago

How many flights depart from Las Vegas to Chicago on average per week?

The number of flights available between Las Vegas and Chicago is 354 per week as of August 2025. The most frequent departure day is Thu, with 18% of weekly flights leaving on this day.

How many flights depart from Las Vegas to Chicago on average per day?

As of August 2025, 50 flights take off from Las Vegas and land in Chicago each day. The most common flight departure time for this route is 10:00AM, with 53% of daily flights taking off at noon.

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

Prices for flights from Las Vegas Harry Reid Intl Airport to Chicago are refreshed on a daily basis.

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

There are 7 operators available for flights from Las Vegas Harry Reid Intl Airport to Chicago as of August 2025.

How old do you have to be to fly from Las Vegas Harry Reid Intl Airport to Chicago?

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.

What documentation or ID do you need to fly to Chicago?

The travel and health documents you'll need for your trip to Chicago 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 Chicago. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$71 Cheap Flights from Las Vegas to Chicago in 2025

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Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

2:57 pm - 8:59 pmLAS-ORD

4h 02mnonstop

1:03 pm - 3:22 pmORD-LAS

4h 19mnonstop

$110Frontier

Find Deal

Fri, Sep 5 - Sun, Sep 7

11:10 pm - 4:50 amLAS-ORD

3h 40mnonstop

8:01 pm - 10:06 pmORD-LAS

4h 05mnonstop

$111Spirit Airlines

Find Deal

Wed, Sep 3 - Sun, Sep 7

3:50 pm - 9:32 pmLAS-ORD

3h 42mnonstop

1:03 pm - 3:22 pmORD-LAS

4h 19mnonstop

$112

Find Deal

Wed, Sep 10 - Sun, Sep 14

3:50 pm - 9:32 pmLAS-ORD

3h 42mnonstop

9:00 am - 11:05 amORD-LAS

4h 05mnonstop

$114Spirit Airlines

Find Deal

Fri, Sep 5 - Mon, Sep 8

6:00 am - 11:48 amLAS-ORD

3h 48mnonstop

1:03 pm - 3:22 pmORD-LAS

4h 19mnonstop

$115Frontier

Find Deal

Thu, Sep 4 - Sun, Sep 7

6:45 am - 12:08 pmLAS-RFD

3h 23mnonstop

9:16 pm - 10:50 pmRFD-LAS

3h 34mnonstop

$129Allegiant Air

Find Deal

Sun, Aug 31 - Sun, Sep 7

11:40 pm - 5:10 amLAS-MDW

3h 30mnonstop

5:50 pm - 7:45 pmMDW-LAS

3h 55mnonstop

$159Southwest

Find Deal

Sat, Sep 27 - Tue, Sep 30

5:27 pm - 11:15 pmLAS-ORD

3h 48mnonstop

11:20 am - 1:24 pmORD-LAS

4h 04mnonstop

$159United Airlines

Find Deal

Sat, Sep 27 - Mon, Sep 29

6:45 am - 12:08 pmLAS-RFD

3h 23mnonstop

12:58 pm - 2:42 pmRFD-LAS

3h 44mnonstop

$167Allegiant Air

Find Deal

Thu, Aug 28 - Sun, Aug 31

12:30 pm - 7:25 pmLAS-MDW

4h 55m1 stop

7:20 pm - 9:15 pmMDW-LAS

3h 55mnonstop

$179Southwest

Find Deal

Wed, Oct 15 - Sat, Oct 18

Frontier flights from Las Vegas to Chicago

Our best Frontier deals on Las Vegas to Chicago flight tickets

Frontier

Sep 5

LAS2:57 pmLas Vegas Harry Reid Intl

4h 02m

ORD8:59 pmChicago O'Hare Intl

Sep 7

ORD1:03 pmChicago O'Hare Intl

4h 19m

LAS3:22 pmLas Vegas Harry Reid Intl

$110

Find similar

Frontier

Sep 4

LAS6:00 amLas Vegas Harry Reid Intl

3h 48m

ORD11:48 amChicago O'Hare Intl

Sep 7

ORD1:03 pmChicago O'Hare Intl

4h 19m

LAS3:22 pmLas Vegas Harry Reid Intl

$115

Find similar

Frontier

Sep 4

LAS6:00 amLas Vegas Harry Reid Intl

3h 48m

ORD11:48 amChicago O'Hare Intl

Sep 7

ORD1:03 pmChicago O'Hare Intl

4h 19m

LAS3:22 pmLas Vegas Harry Reid Intl

$116

Find similar

Spirit Airlines flights from Las Vegas to Chicago

Our best Spirit Airlines deals on Las Vegas to Chicago flight tickets

Spirit Airlines

Sep 3

LAS11:10 pmLas Vegas Harry Reid Intl

3h 40m

ORD4:50 amChicago O'Hare Intl

Sep 7

ORD8:01 pmChicago O'Hare Intl

4h 05m

LAS10:06 pmLas Vegas Harry Reid Intl

$111

Find similar

Spirit Airlines

Sep 5

LAS3:50 pmLas Vegas Harry Reid Intl

3h 42m

ORD9:32 pmChicago O'Hare Intl

Sep 8

ORD9:00 amChicago O'Hare Intl

4h 05m

LAS11:05 amLas Vegas Harry Reid Intl

$114

Find similar

Spirit Airlines

Sep 4

LAS3:50 pmLas Vegas Harry Reid Intl

3h 42m

ORD9:32 pmChicago O'Hare Intl

Sep 8

ORD6:15 amChicago O'Hare Intl

4h 00m

LAS8:15 amLas Vegas Harry Reid Intl

$116

Find similar

Fly from

Fly to

Route

Depart

Return

Price

Las VegasChicago

LAS - ORD

LASORD

Las Vegas Harry Reid Intl

Fri 9/5

2:57 pm-8:59 pm

Nonstop4h 02m

Chicago O'Hare Intl

Sun 9/7

1:03 pm-3:22 pm

Nonstop4h 19m

$110

Las VegasChicago

LAS - ORD

LASORD

Las Vegas Harry Reid Intl

Wed 9/3

11:10 pm-4:50 am

Nonstop3h 40m

Chicago O'Hare Intl

Sun 9/7

8:01 pm-10:06 pm

Nonstop4h 05m

$111

Las VegasChicago

LAS - ORD

LASORD

Las Vegas Harry Reid Intl

Wed 9/10

3:50 pm-9:32 pm

Nonstop3h 42m

Chicago O'Hare Intl

Sun 9/14

1:03 pm-3:22 pm

Nonstop4h 19m

$112

Las VegasChicago

LAS - ORD

LASORD

Las Vegas Harry Reid Intl

Fri 9/5

3:50 pm-9:32 pm

Nonstop3h 42m

Chicago O'Hare Intl

Mon 9/8

9:00 am-11:05 am

Nonstop4h 05m

$114

Las VegasChicago

LAS - ORD

LASORD

Las Vegas Harry Reid Intl

Thu 9/4

6:00 am-11:48 am

Nonstop3h 48m

Chicago O'Hare Intl

Sun 9/7

1:03 pm-3:22 pm

Nonstop4h 19m

$115

Las VegasChicago

LAS - RFD

LASRFD

Las Vegas Harry Reid Intl

Sun 8/31

6:45 am-12:08 pm

Nonstop3h 23m

Chicago Greater Rockford

Sun 9/7

9:16 pm-10:50 pm

Nonstop3h 34m

$129

Las VegasChicago

LAS - MDW

LASMDW

Las Vegas Harry Reid Intl

Sat 9/27

11:40 pm-5:10 am

Nonstop3h 30m

Chicago Midway

Tue 9/30

5:50 pm-7:45 pm

Nonstop3h 55m

$159

Las VegasChicago

LAS - ORD

LASORD

Las Vegas Harry Reid Intl

Sat 9/27

5:27 pm-11:15 pm

Nonstop3h 48m

Chicago O'Hare Intl

Mon 9/29

11:20 am-1:24 pm

Nonstop4h 04m

$159

Las VegasChicago

LAS - RFD

LASRFD

Las Vegas Harry Reid Intl

Thu 8/28

6:45 am-12:08 pm

Nonstop3h 23m

Chicago Greater Rockford

Sun 8/31

12:58 pm-2:42 pm

Nonstop3h 44m

$167

Las VegasChicago

LAS - MDW

LASMDW

Las Vegas Harry Reid Intl

Wed 10/15

12:30 pm-7:25 pm

1 stop4h 55m

Chicago Midway

Sat 10/18

7:20 pm-9:15 pm

Nonstop3h 55m

$179

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How to get the cheapest flight ticket from Las Vegas to Chicago

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

Prices

Airlines

Other information

What is the cheapest month to fly to Chicago?

The month of September is, on average, the cheapest month to fly to Chicago from Las Vegas, with most prices found around $141. If you’re not able to fly to Chicago in September, then January is your next best option. Flight prices from Las Vegas to Chicago during January average around $147.

What is the cheapest day to depart on your flight to Chicago?

The cheapest day to depart on your flight to Chicago is on a Friday when prices can be found for as low as $266. This is often the case because there is less demand to fly during this day of the week. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from Las Vegas to Chicago for around $423.

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

Our most recent data shows that the best time of day to fly to Chicago is in the afternoon. Flights from Las Vegas to Chicago during this time can be as low as $215. In contrast, the most expensive time of day to depart to Chicago is at noon when prices are around $629.

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

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

How far in advance should I book a flight to Chicago?

You are more likely to see cheaper flights to Chicago from Las Vegas when booking weeks ahead of your departure date. In general, you can expect to find flights to Chicago for around $238 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Chicago from Las Vegas for as low as $161 on momondo.

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

There are 4 cabin classes available to choose from on Las Vegas Harry Reid Intl to Chicago 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 flight prices changed over time?

As of August 2025, prices for Las Vegas to Chicago flights are approximately 6% cheaper when compared to flights at the same time last year.

When to book flights from Las Vegas to Chicago

Are you open to changing your travel dates? Check out the ideal times to fly from Las Vegas to Chicago according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

How far is Las Vegas Harry Reid Intl to Chicago by plane?
There are 1519.9 mi between Las Vegas Harry Reid Intl and Chicago. A reasonable flight in good conditions will take 3h 23m.
When did momondo last update prices for flights from Las Vegas Harry Reid Intl Airport to Chicago?
Prices for flights from Las Vegas Harry Reid Intl Airport to Chicago are refreshed on a daily basis.
How many operators does momondo search for flights from Las Vegas Harry Reid Intl Airport to Chicago?
There are 7 operators available for flights from Las Vegas Harry Reid Intl Airport to Chicago as of August 2025.
How old do you have to be to fly from Las Vegas Harry Reid Intl Airport to Chicago?
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.
What documentation or ID do you need to fly to Chicago?
The travel and health documents you'll need for your trip to Chicago 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 Chicago. 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 Las Vegas to Chicago?
Based on momondo bookings for flights between Las Vegas and Chicago, the leading plane model is Boeing 737-800, making up 14.30% of the total bookings. Other popular models include Boeing 737 MAX 8 with 11.22%, Airbus A321neo with 9.89%, and Airbus A320neo with 9.87%.
What is the most popular airline from Las Vegas to Chicago?
Based on momondo bookings for flights between Las Vegas and Chicago, the leading airline is Spirit Airlines, making up 33% of the total bookings. Other popular airlines include Frontier with 30%, American Airlines with 18%, and Southwest with 12%.

Best airlines flying from Las Vegas to Chicago

Compare and see reviews for airlines that fly from Las Vegas to Chicago with momondo

Airline	Rating	Free Cancellation	Price
Frontier	PriceFrom $56	Free Cancellation	Rating 5.8 3,207 reviews	Search Frontier flights
Spirit Airlines	PriceFrom $67	Free Cancellation	Rating 6.3 8,035 reviews	Search Spirit Airlines flights
Allegiant Air	PriceFrom $100	Free Cancellation	Rating 7.2 702 reviews	Search Allegiant Air flights
Delta	PriceFrom $118	Free Cancellation	Rating 7.9 7,981 reviews	Search Delta flights
American Airlines	PriceFrom $154	Free Cancellation	Rating 7.2 10,000 reviews	Search American Airlines flights
United Airlines	PriceFrom $157	Free Cancellation	Rating 7.4 8,930 reviews	Search United Airlines flights
Southwest	PriceFrom $159	Free Cancellation	Rating 8.0 4,245 reviews	Search Southwest flights

Southwest Flights From Las Vegas to Chicago
Southwest flies from Las Vegas to Chicago around 69 times per week, with 4,245 momondo users rating the airline 8.0/10. The cheapest Southwest deal from Las Vegas to Chicago in the last 72 hours was $159 (round-trip), much lower than the average airfare cost of $307 for Southwest flights on this route.
United Airlines Flights From Las Vegas to Chicago
Another popular option for Las Vegas to Chicago flights is United Airlines (7.4/10, 8,930 ratings). United Airlines flies from Las Vegas to Chicago around 42 times per week, with deals starting from $157 round-trip and rising to an average price of around $331.

Merrillville

New Buffalo

Hammond

Benton Harbor

Saint Joseph

Lansing

Portage

Schererville

Valparaiso

Crown Point

Munster

Chesterton

Monticello

Porter

Griffith

Saint John

Why use momondo?

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

It is quick and easy to find Las Vegas to Chicago flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Chicago that suits you.

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

Flights from Las Vegas to Chicago with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

Once you have performed a search for Las Vegas to Chicago flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

Yes momondo offers price alerts on flights to Chicago from Las Vegas. 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 Chicago trip

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Cheap flights from Las Vegas to Chicago from $71

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 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.

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Frontier flights from Las Vegas to Chicago

Our best Frontier deals on Las Vegas to Chicago flight tickets

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Our best Spirit Airlines deals on Las Vegas to Chicago flight tickets

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See travel insights to Chicago from

How to get the cheapest flight ticket from Las Vegas to Chicago

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?

The month of September is, on average, the cheapest month to fly to Chicago from Las Vegas, with most prices found around $141. If you’re not able to fly to Chicago in September, then January is your next best option. Flight prices from Las Vegas to Chicago during January average around $147.

What is the cheapest day to depart on your flight to Chicago?

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

Our most recent data shows that the best time of day to fly to Chicago is in the afternoon. Flights from Las Vegas to Chicago during this time can be as low as $215. In contrast, the most expensive time of day to depart to Chicago is at noon when prices are around $629.

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

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

How far in advance should I book a flight to Chicago?

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

There are 4 cabin classes available to choose from on Las Vegas Harry Reid Intl to Chicago 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 flight prices changed over time?

As of August 2025, prices for Las Vegas to Chicago flights are approximately 6% cheaper when compared to flights at the same time last year.

What is the cheapest airline that flies from Las Vegas Harry Reid Intl to Chicago?

Spirit Airlines, Allegiant Air, and Frontier are the most popular carriers operating from Las Vegas Harry Reid Intl to Chicago

What airlines fly to Chicago?

How many flights depart from Las Vegas to Chicago on average per day?

As of August 2025, 50 flights take off from Las Vegas and land in Chicago each day. The most common flight departure time for this route is 10:00AM, with 53% of daily flights taking off at noon.

How many flights depart from Las Vegas to Chicago on average per week?

The number of flights available between Las Vegas and Chicago is 354 per week as of August 2025. The most frequent departure day is Thu, with 18% of weekly flights leaving on this day.

When to book flights from Las Vegas to Chicago

How far is Las Vegas Harry Reid Intl to Chicago by plane?

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

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

How old do you have to be to fly from Las Vegas Harry Reid Intl Airport to Chicago?

What documentation or ID do you need to fly to Chicago?

What is the most popular plane model from Las Vegas to Chicago?

What is the most popular airline from Las Vegas to Chicago?

Best airlines flying from Las Vegas to Chicago

Compare and see reviews for airlines that fly from Las Vegas to Chicago with momondo

Southwest Flights From Las Vegas to Chicago

United Airlines Flights From Las Vegas to Chicago

Traveling to a place near Chicago?

Why use momondo?

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

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

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

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

An easier way to manage your Chicago 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.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to the United States

Fly into one of these airports located in Chicago

Airports listed have a maximum distance of 78.5 mi from Chicago