What are the cheapest airlines to fly from Illinois to Las Vegas one-way?

The cheapest airlines for a one-way flight from Illinois to Las Vegas are Frontier ($63), Spirit Airlines ($64), and Allegiant Air ($67).

In terms of precipitation, rainfall in Las Vegas ranges from 0.1 - 0.8 inches per month. February is typically the wettest month, when rainfall can reach 0.8 in. May is typically the driest time to visit Las Vegas when rainfall is around 0.1 in.

If weather is an important factor for your trip to Las Vegas, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 93.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 48.2 F).

What are the most popular routes from Illinois to Las Vegas?

While some choose either Chicago Midway - Las Vegas Harry Reid Intl or Lambert-St Louis - Las Vegas Harry Reid Intl, Chicago O'Hare Intl - Las Vegas Harry Reid Intl is the most popular route from Illinois to Las Vegas.

What are the cheapest flights from Illinois to Las Vegas?

Looking at all options, your cheapest flight can be booked for $50. While the most popular route (Chicago O'Hare Intl - Las Vegas Harry Reid Intl) can be booked for $91 on average our data indicates $614 when flying from Illinois to Las Vegas.

What are the most reliable airlines from Illinois to Las Vegas?

The top 3 most reliable airlines when flying from Illinois to Las Vegas are Brussels Airlines (88%), Air Canada (88%) and Spirit Airlines (87%).

What are the most popular airlines that fly from Illinois to Las Vegas?

American Airlines, Alaska Airlines and Delta are the most popular airlines when flying from Illinois to Las Vegas.

How far in advance should I book a flight from Illinois to Las Vegas?

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 41 days in advance, which can save you up to 48% on flights from Illinois to Las Vegas compared to booking the week you need them. Waiting 41 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at $219. For sooner than that we have options available in the next 3 days from $344.

What is the cheapest month to fly from Illinois to Las Vegas?

Flights from Illinois to Las Vegas lean towards being more expensive in March. Prices are generally better when you fly from Illinois to Las Vegas in August, with the cheapest ticket starting at $74.

What airport do you fly into for flights to Las Vegas from Illinois?

Las Vegas Harry Reid Intl (LAS), located 6.2 mi from the city center, is the airport you fly into when you book flights from Illinois to Las Vegas.

Can I find deals for flights from Illinois to Las Vegas that include hotel bookings?

Yes. In addition to deals on Illinois to Las Vegas flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Illinois to Las Vegas?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Illinois to Las Vegas.

Can I find deals for business class flights from Illinois to Las Vegas?

Yes. Cheapflights offers flight deals from Illinois to Las Vegas by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$63+ Flights from Illinois to Las Vegas

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Cheap flight deals from Illinois to Las Vegas

Round-trip from	$110 (Mytrip)
One-way from	$63 (Frontier)
Popular in	March
Cheapest in	August
Average price	$255
Good round-trip deal	$122 or less
Good one-way deal	$77 or less

From Illinois to Las Vegas Harry Reid Intl

Search Deals

One-way flight from Illinois to Las Vegas Harry Reid Intl

Search Deals

Highest demand for flights based on searches. 5% potential increase in price ($14 potential increase over avg. RT price).

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Cheapest flight prices on average. 2% potential price decrease ($6 potential savings vs. average RT price).

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Average for round-trip flights in July 2025

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Price to beat on a round-trip flight from Illinois to Las Vegas Harry Reid Intl.

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Price to beat on a one-way flight from Illinois to Las Vegas Harry Reid Intl.

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Find flight deals from Illinois to Las Vegas

Cheapest flights from Illinois to Las Vegas
Explore the most affordable flight options available from Illinois to Las Vegas. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 3, 2025.

Sun 8/1012:46 pmMLI - LAS

Nonstop3h 22mAllegiant Air

Thu 8/146:20 amLAS - MLI

Nonstop3h 15mAllegiant Air

Deal found 7/3

$110

Wed 7/308:39 pmPIA - LAS

Nonstop3h 30mAllegiant Air

Wed 8/69:30 amLAS - PIA

Nonstop3h 20mAllegiant Air

Deal found 7/2

$130

Sat 7/198:50 amORD - LAS

1 stop10h 52mSpirit Airlines

Fri 7/2512:34 amLAS - ORD

Nonstop3h 29mSpirit Airlines

Deal found 7/2

$133

Mon 7/219:56 pmORD - LAS

Nonstop4h 09mFrontier

Fri 7/2510:30 amLAS - ORD

1 stop10h 25mFrontier

Deal found 7/2

$135

Sat 8/98:05 amMDW - LAS

1 stop10h 14mFrontier

Sun 8/1012:59 amLAS - MDW

1 stop8h 50mFrontier

Deal found 7/2

$135

Fri 9/2610:25 amORD - LAS

1 stop8h 16mMultiple Airlines

Tue 9/3010:15 pmLAS - ORD

1 stop10h 03mMultiple Airlines

Deal found 7/1

$139

Sun 8/3112:58 pmRFD - LAS

Nonstop3h 44mAllegiant Air

Sun 9/73:02 pmLAS - RFD

Nonstop3h 24mAllegiant Air

Deal found 7/1

$148

Sat 8/164:15 pmMDW - LAS

Nonstop3h 50mSouthwest

Wed 8/2011:40 pmLAS - MDW

Nonstop3h 30mSouthwest

Deal found 7/2

$159

Sat 7/264:00 pmORD - LAS

Nonstop4h 05mSouthwest

Sat 8/212:00 pmLAS - ORD

Nonstop3h 55mSouthwest

Deal found 7/2

$169

Sat 10/257:52 pmSTL - LAS

1 stop5h 40mMultiple Airlines

Thu 10/3010:55 pmLAS - STL

1 stop6h 54mMultiple Airlines

Deal found 6/30

$186

Tue 8/267:54 pmSTL - LAS

1 stop5h 40mFrontier

Wed 8/2712:59 amLAS - STL

1 stop6h 19mFrontier

Deal found 6/30

$187

Sun 7/279:21 amRFD - LAS

1 stop16h 38mMultiple Airlines

Sun 8/36:30 amLAS - RFD

Nonstop3h 24mMultiple Airlines

Deal found 7/2

$192

Best flights from Illinois to Las Vegas
Discover carefully curated flight deals from Illinois to Las Vegas that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 3, 2025.

Sun 8/1012:46 pmMLI - LAS

Nonstop3h 22mAllegiant Air

Thu 8/146:20 amLAS - MLI

Nonstop3h 15mAllegiant Air

Deal found 7/3

$110

Sat 7/198:50 amORD - LAS

1 stop10h 52mSpirit Airlines

Fri 7/2512:34 amLAS - ORD

Nonstop3h 29mSpirit Airlines

Deal found 7/2

$133

Mon 7/219:56 pmORD - LAS

Nonstop4h 09mFrontier

Fri 7/2510:30 amLAS - ORD

1 stop10h 25mFrontier

Deal found 7/2

$135

Fri 9/2610:25 amORD - LAS

1 stop8h 16mMultiple Airlines

Tue 9/3010:15 pmLAS - ORD

1 stop10h 03mMultiple Airlines

Deal found 7/1

$139

Sat 8/164:15 pmMDW - LAS

Nonstop3h 50mSouthwest

Tue 8/1910:00 amLAS - MDW

Nonstop3h 45mSouthwest

Deal found 7/1

$159

Tue 8/56:30 amSTL - LAS

1 stop5h 39mDelta

Thu 8/75:20 pmLAS - STL

1 stop5h 18mDelta

Deal found 7/3

$207

Sat 8/24:17 pmMLI - LAS

1 stop7h 56mAmerican Airlines

Mon 8/43:27 pmLAS - MLI

1 stop6h 09mAmerican Airlines

Deal found 7/1

$255

Wed 7/308:39 pmPIA - LAS

Nonstop3h 30mAllegiant Air

Wed 8/69:30 amLAS - PIA

Nonstop3h 20mAllegiant Air

Deal found 7/2

$130

Sat 8/98:05 amMDW - LAS

1 stop10h 14mFrontier

Sun 8/1012:59 amLAS - MDW

1 stop8h 50mFrontier

Deal found 7/2

$135

Mon 9/85:19 pmPIA - LAS

1 stop6h 29mUnited Airlines

Mon 9/1511:59 pmLAS - PIA

1 stop8h 14mUnited Airlines

Deal found 7/3

$288

Sun 8/3112:58 pmRFD - LAS

Nonstop3h 44mAllegiant Air

Sun 9/73:02 pmLAS - RFD

Nonstop3h 24mAllegiant Air

Deal found 7/1

$148

Sat 7/264:00 pmORD - LAS

Nonstop4h 05mSouthwest

Sat 8/212:00 pmLAS - ORD

Nonstop3h 55mSouthwest

Deal found 7/2

$169

Last-minute flights from Illinois to Las Vegas
Discover last-minute flight deals from Illinois to Las Vegas. Data last updated July 3, 2025 and is based on user searches.

Thu 7/102:44 pmMDW - LAS

1 stop10h 50mFrontier

Fri 7/1112:59 amLAS - MDW

1 stop10h 51mFrontier

Deal found 7/2

$161

Thu 7/102:27 pmSTL - LAS

Nonstop3h 36mFrontier

Sun 7/138:20 amLAS - STL

Nonstop3h 22mFrontier

Deal found 7/3

$191

Fri 7/119:56 pmORD - LAS

Nonstop4h 09mFrontier

Mon 7/1410:41 amLAS - ORD

1 stop10h 26mFrontier

Deal found 7/1

$134

Sat 7/123:34 pmSTL - LAS

1 stop9h 33mMultiple Airlines

Tue 7/1512:59 amLAS - STL

1 stop6h 12mMultiple Airlines

Deal found 7/2

$193

Sat 7/123:34 pmSTL - LAS

1 stop9h 33mSpirit Airlines

Wed 7/1612:20 amLAS - STL

1 stop7h 32mSpirit Airlines

Deal found 7/2

$211

Sun 7/137:08 amORD - LAS

Nonstop3h 58mSpirit Airlines

Tue 7/1512:34 amLAS - ORD

Nonstop3h 29mSpirit Airlines

Deal found 7/1

$137

Sun 7/139:56 pmORD - LAS

Nonstop4h 09mMultiple Airlines

Sat 7/1912:34 amLAS - ORD

Nonstop3h 29mMultiple Airlines

Deal found 7/2

$140

Sun 7/1312:46 pmMLI - LAS

Nonstop3h 22mAllegiant Air

Thu 7/176:35 amLAS - MLI

Nonstop3h 11mAllegiant Air

Deal found 7/2

$160

Sun 7/1312:44 pmRFD - LAS

Nonstop3h 32mAllegiant Air

Thu 7/176:30 amLAS - RFD

Nonstop3h 24mAllegiant Air

Deal found 7/1

$170

Sun 7/139:21 amRFD - LAS

1 stop16h 38mMultiple Airlines

Thu 7/176:30 amLAS - RFD

Nonstop3h 24mMultiple Airlines

Deal found 7/1

$256

Sun 7/138:15 pmMDW - LAS

Nonstop3h 55mSouthwest

Wed 7/165:05 amLAS - MDW

Nonstop3h 30mSouthwest

Deal found 7/2

$279

Sun 7/139:25 amMDW - LAS

1 stop6h 00mDelta

Tue 7/1512:40 amLAS - MDW

1 stop6h 05mDelta

Deal found 7/2

$299

One-way flights from Illinois to Las Vegas
Search for one-way flight options from Illinois to Las Vegas. Find affordable one-way fares based on user searches. Data last updated July 3, 2025.

Mon 7/219:56 pmORD - LAS

Nonstop4h 09mFrontier

Deal found 7/1

$63

Mon 11/176:00 amORD - LAS

Nonstop3h 54mSpirit Airlines

Deal found 7/1

$64

Sun 9/288:37 pmRFD - LAS

Nonstop3h 34mAllegiant Air

Deal found 6/30

$67

Fri 9/52:39 pmMDW - LAS

1 stop7h 09mFrontier

Deal found 7/2

$72

Wed 7/168:39 pmPIA - LAS

Nonstop3h 30mAllegiant Air

Deal found 7/2

$80

Tue 10/147:30 amORD - LAS

Nonstop4h 06mUnited Airlines

Deal found 7/1

$80

Sat 9/204:15 pmMDW - LAS

Nonstop3h 50mSouthwest

Deal found 7/2

$80

Tue 10/148:20 amORD - LAS

1 stop9h 43mAlaska Airlines

Deal found 7/2

$89

Sun 7/2712:46 pmMLI - LAS

Nonstop3h 22mAllegiant Air

Deal found 7/2

$90

Thu 9/187:55 pmSTL - LAS

1 stop5h 38mFrontier

Deal found 7/1

$92

Tue 8/263:35 pmSTL - LAS

1 stop7h 52mHawaiian Airlines

Deal found 7/1

$94

Thu 8/142:30 pmSTL - LAS

1 stop9h 08mSpirit Airlines

Deal found 7/3

$95

Cheapflights Fare Finder

Use the filters below to find and compare flights from Illinois to Las Vegas that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

MolineLas Vegas

MLI - LAS

MLILAS

Moline Quad-City

Sun 8/10

12:46 pm-2:08 pm

Nonstop3h 22m

Las Vegas Harry Reid Intl

Thu 8/14

6:20 am-11:35 am

Nonstop3h 15m

$110

PeoriaLas Vegas

PIA - LAS

PIALAS

Greater Peoria

Wed 7/30

8:39 pm-10:09 pm

Nonstop3h 30m

Las Vegas Harry Reid Intl

Wed 8/6

9:30 am-2:50 pm

Nonstop3h 20m

$130

ChicagoLas Vegas

ORD - LAS

ORDLAS

Chicago O'Hare Intl

Sat 7/19

8:50 am-5:42 pm

1 stop10h 52m

Las Vegas Harry Reid Intl

Fri 7/25

12:34 am-6:03 am

Nonstop3h 29m

$133

ChicagoLas Vegas

ORD - LAS

ORDLAS

Chicago O'Hare Intl

Mon 7/21

9:56 pm-12:05 am

Nonstop4h 09m

Las Vegas Harry Reid Intl

Fri 7/25

10:30 am-10:55 pm

1 stop10h 25m

$135

ChicagoLas Vegas

MDW - LAS

MDWLAS

Chicago Midway

Sat 8/9

8:05 am-4:19 pm

1 stop10h 14m

Las Vegas Harry Reid Intl

Sun 8/10

12:59 am-11:49 am

1 stop8h 50m

$135

ChicagoLas Vegas

ORD - LAS

ORDLAS

Chicago O'Hare Intl

Fri 9/26

10:25 am-4:41 pm

1 stop8h 16m

Las Vegas Harry Reid Intl

Tue 9/30

10:15 pm-10:18 am

1 stop10h 03m

$139

ChicagoLas Vegas

RFD - LAS

RFDLAS

Chicago Greater Rockford

Sun 8/31

12:58 pm-2:42 pm

Nonstop3h 44m

Las Vegas Harry Reid Intl

Sun 9/7

3:02 pm-8:26 pm

Nonstop3h 24m

$148

ChicagoLas Vegas

MDW - LAS

MDWLAS

Chicago Midway

Sat 8/16

4:15 pm-6:05 pm

Nonstop3h 50m

Las Vegas Harry Reid Intl

Tue 8/19

10:00 am-3:45 pm

Nonstop3h 45m

$159

ChicagoLas Vegas

ORD - LAS

ORDLAS

Chicago O'Hare Intl

Sat 7/26

4:00 pm-6:05 pm

Nonstop4h 05m

Las Vegas Harry Reid Intl

Sat 8/2

12:00 pm-5:55 pm

Nonstop3h 55m

$169

St. LouisLas Vegas

STL - LAS

STLLAS

Lambert-St Louis

Sat 10/25

7:52 pm-11:32 pm

1 stop5h 40m

Las Vegas Harry Reid Intl

Thu 10/30

10:55 pm-7:49 am

1 stop6h 54m

$186

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/1

Showing 1-10 of 60 results

...

Best time to book a flight from Illinois to Las Vegas

Have a flexible travel schedule? Discover the best time to fly to Las Vegas from Illinois with our price prediction graph.

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Illinois to Las Vegas

What is the cheapest month to book a flight from Illinois to Las Vegas?

Currently, August is the cheapest month in which you can book a flight from Illinois to Las Vegas (average of $198). Flying from Illinois to Las Vegas in March is currently the most expensive (average of $269). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from IL to LAS?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Illinois to Las Vegas as you normally would.

Weekly flight availability from Illinois to Las Vegas

The most flights from USIL to LAS are scheduled on a Thursday (44 on average). You will have fewer flight options on Friday, which is when the least amount of flights are scheduled (10 on average).

How much does it cost to fly round-trip from Illinois to Las Vegas?

Reviews of airlines servicing Las Vegas

Read through reviews of airlines operating flights from Illinois to Las Vegas, such as Alaska Airlines, Southwest, and Delta. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Alaska Airlines

8.0

Very good

10,000 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Southwest

8.0

Very good

4,266 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Delta

8.0

Very good

7,982 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Hawaiian Airlines

7.8

Good

2,545 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

United Airlines

7.4

Good

8,861 reviews

Alaska Airlines

8.0

Very good

10,000 reviews

Reviews

1 / 20

10.0

Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Related info for your journey

What airport do you fly into for flights to Las Vegas from Illinois?
Las Vegas Harry Reid Intl (LAS), located 6.2 mi from the city center, is the airport you fly into when you book flights from Illinois to Las Vegas.
What are the cheapest airlines to fly from Illinois to Las Vegas one-way?
The cheapest airlines for a one-way flight from Illinois to Las Vegas are Frontier ($63), Spirit Airlines ($64), and Allegiant Air ($67).
What are the most popular routes from Illinois to Las Vegas?
While some choose either Chicago Midway - Las Vegas Harry Reid Intl or Lambert-St Louis - Las Vegas Harry Reid Intl, Chicago O'Hare Intl - Las Vegas Harry Reid Intl is the most popular route from Illinois to Las Vegas.
What are the most reliable airlines from Illinois to Las Vegas?
The top 3 most reliable airlines when flying from Illinois to Las Vegas are Brussels Airlines (88%), Air Canada (88%) and Spirit Airlines (87%).
What are the cheapest flights from Illinois to Las Vegas?
Looking at all options, your cheapest flight can be booked for $50. While the most popular route (Chicago O'Hare Intl - Las Vegas Harry Reid Intl) can be booked for $91 on average our data indicates $614 when flying from Illinois to Las Vegas.
Can I find deals for flights from Illinois to Las Vegas that include hotel bookings?
Yes. In addition to deals on Illinois to Las Vegas flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Illinois to Las Vegas?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Illinois to Las Vegas.
Can I find deals for business class flights from Illinois to Las Vegas?
Yes. Cheapflights offers flight deals from Illinois to Las Vegas by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Illinois to Las Vegas?
Currently, August is the cheapest month in which you can book a flight from Illinois to Las Vegas (average of $198). Flying from Illinois to Las Vegas in March is currently the most expensive (average of $269). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Henderson

Paradise

Sunrise Manor

North Las Vegas

Winchester

Primm

Mount Charleston

Kingman

Mesquite

Needles

Boulder City

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Top 9 airlines flying from Illinois to Las Vegas

Airline	Cheapest	Average	Flexibility	On-time
Frontier	Cheapest$56	Average$190	FlexibilityNo cancel fee	On-time62%
Spirit Airlines	Cheapest$70	Average$206	FlexibilityNo cancel fee	On-time65%
Delta	Cheapest$108	Average$355	FlexibilityNo cancel fee	On-timeN/A
Allegiant Air	Cheapest$110	Average$231	FlexibilityNo cancel fee	On-time88%
United Airlines	Cheapest$149	Average$451	FlexibilityNo cancel fee	On-time69%
American Airlines	Cheapest$159	Average$438	FlexibilityNo cancel fee	On-time71%
Southwest	Cheapest$183	Average$346	FlexibilityNo cancel fee	On-time63%
Sun Country Air	Cheapest$203	Average$315	FlexibilityNo cancel fee	On-time83%
Alaska Airlines	Cheapest$222	Average$297	FlexibilityNo cancel fee	On-time75%

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$63+ Cheap flights from Illinois to Las Vegas (LAS)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 7/21. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Illinois to Las Vegas with Cheapflights

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Cheap flight deals from Illinois to Las Vegas

Keep the following information in mind while searching for Illinois to Las Vegas flight deals. Data was last updated July 3, 2025.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

Good one-way deal

Find flight deals from Illinois to Las Vegas

Cheapest flights from Illinois to Las VegasExplore the most affordable flight options available from Illinois to Las Vegas. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 3, 2025.

Explore the most affordable flight options available from Illinois to Las Vegas. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 3, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Illinois to Las Vegas that are best for you.

Best time to book a flight from Illinois to Las Vegas

Have a flexible travel schedule? Discover the best time to fly to Las Vegas from Illinois with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Illinois to Las Vegas

What is the cheapest month to book a flight from Illinois to Las Vegas?

What is the cheapest time of day to fly from IL to LAS?

Find hourly flight availability from Illinois to Las Vegas. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 3, 2025.

Weekly flight availability from Illinois to Las Vegas

Explore weekly flight availability from Illinois to Las Vegas. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated July 3, 2025.

How much does it cost to fly round-trip from Illinois to Las Vegas?

Reviews of airlines servicing Las Vegas

Read through reviews of airlines operating flights from Illinois to Las Vegas, such as Alaska Airlines, Southwest, and Delta. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Illinois to Las Vegas. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

What airport do you fly into for flights to Las Vegas from Illinois?

What are the cheapest airlines to fly from Illinois to Las Vegas one-way?

What are the most popular routes from Illinois to Las Vegas?

What are the most reliable airlines from Illinois to Las Vegas?

What are the cheapest flights from Illinois to Las Vegas?

Can I find deals for flights from Illinois to Las Vegas that include hotel bookings?

How can I find direct flights from Illinois to Las Vegas?

Can I find deals for business class flights from Illinois to Las Vegas?

What is the cheapest month to book a flight from Illinois to Las Vegas?

Traveling to a place near Illinois?

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Illinois to Las Vegas

See prices for flight routes from nearby airports that may be better suited for you.

Top 9 airlines flying from Illinois to Las Vegas

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Cheapest flights from Illinois to Las Vegas
Explore the most affordable flight options available from Illinois to Las Vegas. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 3, 2025.