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$300+ Cheap flights from Belleville, IL to Las Vegas (BLV - LAS)

BLV — LAS
Oct 17 — Oct 241
Sat 10/17
Sat 10/24
1 adult, Economy
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1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Belleville to Las Vegas

Best flights from Belleville to Las Vegas

Mon 3/159:24 pm -
Nonstop3h 49m
Fri 3/197:05 am -
Nonstop3h 11m
Deal found 9/15$300

Find flight deals from Belleville to Las Vegas

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$300
(Orbitz)

Popular in

June

Cheapest in

August

Average price

$268

Good one-way deal

$142 or less
Provider with most accurate pricing for Belleville-Las Vegas Harry Reid Intl flight deals.
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Provider most trusted by Cheapflights users for Belleville-Las Vegas Harry Reid Intl flights.
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From Belleville to Las Vegas Harry Reid Intl
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Highest demand for flights based on searches. 4% potential increase in price ($11 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($8 potential savings vs. average RT price).
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Average for round-trip flights in September 2026
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Price to beat on a one-way flight from Belleville to Las Vegas Harry Reid Intl.
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Cheapflights Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

BellevilleLas Vegas

BLV Belleville - LAS Las Vegas Harry Reid Intl

BLVLAS

Belleville

Mon 3/15

9:24 pm-11:13 pm

Nonstop3h 49m

Las Vegas Harry Reid Intl

Fri 3/19

7:05 am-12:16 pm

Nonstop3h 11m

$300

BellevilleLas Vegas

BLV Belleville - LAS Las Vegas Harry Reid Intl

BLVLAS

Belleville

Tue 12/15

1:41 pm-8:35 am

2 stops44h 54m

Las Vegas Harry Reid Intl

Wed 12/31

12:00 am-2:00 am

Nonstop0h 00m

$329

BellevilleLas Vegas

BLV Belleville - LAS Las Vegas Harry Reid Intl

BLVLAS

Belleville

Tue 12/15

1:41 pm-12:04 am

3 stops36h 23m

Las Vegas Harry Reid Intl

Wed 12/31

12:00 am-2:00 am

Nonstop0h 00m

$352

BellevilleLas Vegas

BLV Belleville - LAS Las Vegas Harry Reid Intl

BLVLAS

Belleville

Tue 10/27

10:59 am-11:43 pm

3 stops38h 44m

Las Vegas Harry Reid Intl

Wed 12/31

12:00 am-2:00 am

Nonstop0h 00m

$366

BellevilleLas Vegas

BLV Belleville - LAS Las Vegas Harry Reid Intl

BLVLAS

Belleville

Tue 10/27

10:59 am-8:50 am

2 stops47h 51m

Las Vegas Harry Reid Intl

Wed 12/31

12:00 am-2:00 am

Nonstop0h 00m

$400

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/17

Sorted by cheapest first

Compare providers for flights from Belleville to Las Vegas

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Belleville to Las Vegas in September.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy2 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Belleville, Illinois-Las Vegas flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Belleville, Illinois-Las Vegas flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Belleville, Illinois-Las Vegas flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Belleville, Illinois-Las Vegas flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Belleville, Illinois-Las Vegas flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Belleville to Las Vegas

Have a flexible travel schedule? Discover the best time to fly to Las Vegas from Belleville with our price prediction graph.
Estimated round-trip price

Cheapflights Insights

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

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

Currently, August is the cheapest month in which you can book a flight from Belleville, Illinois to Las Vegas (average of $192). Flying from Belleville, Illinois to Las Vegas in June is currently the most expensive (average of $324). 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.

Reviews of airlines servicing Las Vegas

Get a feel of what it's like to fly with Allegiant Air and Frontier from Belleville to Las Vegas by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Allegiant Air
7.3
Good
679 reviews

Crew

8.1

Entertainment

5.4

Comfort

6.9

Boarding

7.7

Overall

7.3

Food

5.9

Reviews

1 / 20
2.0
Mediocre

Nic,Aug 2026

SRQ - ALB

Worker at gate refused to let me measure my personal item and insisted it needed to be a carryon and to pay 75$. I understand if it’s too big but she wouldn’t even let me go measure it. She eventually let me measure my own luggage after back n forth. It is a few inches too big and she comes over and attempts to grab my suitcase out my hands and I pull it away from her. She then shuts the door of the gate and says to call the police. I then just offer to pay for the carryon and she says ok. Then refuses to use let me use my tap to pay, luckily I had my physical card on me. As soon as I walked out the door I respectfully asked for her name. She began screaming at me and threatening me. This worker was just so hostile I understand if my stuffs too big I will pay the difference I’m not trying to get over on the rules. I was confused because I was allowed to board my destination flight with this item as a personal item. So I was confused by this whole situation from the go. It also caused a massive scene at the airport and I was extremely embarrassed. It genuinely seemed like this worker was out to get me for some reason. I had literally just arrived to the gate as it was already boarding so I hadn’t done anything prior. Super weird situation and it really spooked me.
Allegiant Air
7.3
Good
679 reviews
Allegiant Air
7.3
Good
679 reviews

Crew

8.1

Entertainment

5.4

Comfort

6.9

Boarding

7.7

Overall

7.3

Food

5.9

Reviews

1 / 20
2.0
Mediocre

Nic,Aug 2026

SRQ - ALB

Worker at gate refused to let me measure my personal item and insisted it needed to be a carryon and to pay 75$. I understand if it’s too big but she wouldn’t even let me go measure it. She eventually let me measure my own luggage after back n forth. It is a few inches too big and she comes over and attempts to grab my suitcase out my hands and I pull it away from her. She then shuts the door of the gate and says to call the police. I then just offer to pay for the carryon and she says ok. Then refuses to use let me use my tap to pay, luckily I had my physical card on me. As soon as I walked out the door I respectfully asked for her name. She began screaming at me and threatening me. This worker was just so hostile I understand if my stuffs too big I will pay the difference I’m not trying to get over on the rules. I was confused because I was allowed to board my destination flight with this item as a personal item. So I was confused by this whole situation from the go. It also caused a massive scene at the airport and I was extremely embarrassed. It genuinely seemed like this worker was out to get me for some reason. I had literally just arrived to the gate as it was already boarding so I hadn’t done anything prior. Super weird situation and it really spooked me.
Frontier
5.6
Fair
2,600 reviews
Allegiant Air
7.3
Good
679 reviews

Crew

8.1

Entertainment

5.4

Comfort

6.9

Boarding

7.7

Overall

7.3

Food

5.9

Reviews

1 / 20
2.0
Mediocre

Nic,Aug 2026

SRQ - ALB

Worker at gate refused to let me measure my personal item and insisted it needed to be a carryon and to pay 75$. I understand if it’s too big but she wouldn’t even let me go measure it. She eventually let me measure my own luggage after back n forth. It is a few inches too big and she comes over and attempts to grab my suitcase out my hands and I pull it away from her. She then shuts the door of the gate and says to call the police. I then just offer to pay for the carryon and she says ok. Then refuses to use let me use my tap to pay, luckily I had my physical card on me. As soon as I walked out the door I respectfully asked for her name. She began screaming at me and threatening me. This worker was just so hostile I understand if my stuffs too big I will pay the difference I’m not trying to get over on the rules. I was confused because I was allowed to board my destination flight with this item as a personal item. So I was confused by this whole situation from the go. It also caused a massive scene at the airport and I was extremely embarrassed. It genuinely seemed like this worker was out to get me for some reason. I had literally just arrived to the gate as it was already boarding so I hadn’t done anything prior. Super weird situation and it really spooked me.

Related info for your journey

  • How popular is this Belleville, Illinois to Las Vegas flight route?

    The Belleville to Las Vegas Harry Reid Intl flight path was viewed by 1 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • How long is the flight from Belleville, Illinois to Las Vegas?

    For as low as $300, Allegiant Air can have you in Las Vegas from Belleville, Illinois in 3h 49m. The distance from Belleville, Illinois to Las Vegas is about 1398 mi. All flights are typically nonstop.

  • What are the cheapest airlines flying from Belleville, Illinois to Las Vegas round-trip?

    Our cheapest airline available from Belleville, Illinois to Las Vegas is Allegiant Air. Our recent data shows that you can find tickets from as low as $138 on this airline. An additional option worth looking into is Frontier, starting at $148. Allegiant Air is currently priced 42% below the average price you’ll pay for this route.

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

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

  • How can I find direct flights from Belleville to Las Vegas?

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

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

    Yes. Cheapflights offers flight deals from Belleville 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 Belleville, Illinois to Las Vegas?

    Currently, August is the cheapest month in which you can book a flight from Belleville, Illinois to Las Vegas (average of $192). Flying from Belleville, Illinois to Las Vegas in June is currently the most expensive (average of $324). 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

Traveling to a place near Las Vegas?

Book flights to Las Vegas if you plan to visit one of these locations
Paradise
Mesquite
Henderson
Kingman
North Las Vegas
Boulder City
Needles
Winchester
Sunrise Manor

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Top 2 airlines flying from Belleville to Las Vegas

AirlineCheapestAverageFlexibilityOn-time
Allegiant AirCheapest$138Average$250FlexibilityNo cancel feeOn-time88%
FrontierCheapest$148Average$268FlexibilityNo cancel feeOn-time62%

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