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$135+ Cheap flights from Peoria, IL to Las Vegas (PIA - LAS)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/15. Fares are subject to change and may not be available on all flights or dates of travel.
PIA — LAS
Aug 19 — Aug 261
Tue 8/19
Tue 8/26
1 adult, Economy
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Cheapflights Tip: The best prices from Greater Peoria to Las Vegas Harry Reid Intl are usually found in July or June, booked 37 days in advance, depart on a Tuesday or Monday and return on a Tuesday

Cheap flight deals from Peoria to Las Vegas

Discover tips and strategies to find the most affordable flight options for your journey from Peoria (PIA) to Las Vegas (LAS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated August 14, 2025.

Round-trip from

$135
(Cheapflightsfares)

Popular in

April

Cheapest in

July

Average price

$328

Good round-trip deal

$210 or less
From Greater Peoria to Las Vegas Harry Reid Intl
Search Deals
Highest demand for flights based on searches. 5% potential increase in price ($17 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($6 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Price to beat on a round-trip flight from Greater Peoria to Las Vegas Harry Reid Intl.
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Find flight deals from Peoria to Las Vegas

Cheapest flights from Peoria to Las Vegas
Explore the most affordable flight options available from Peoria to Las Vegas. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 14, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/151:26 pmPIA - LAS
Nonstop3h 38mAllegiant Air
Wed 10/227:30 amLAS - PIA
Nonstop3h 06mAllegiant Air
Deal found 8/14$135
This Kiwi.com deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/221:10 pmPIA - LAS
Nonstop3h 33mAllegiant Air
Fri 9/266:05 amLAS - PIA
Nonstop3h 20mAllegiant Air
Deal found 8/13$182
This Cheapflightsfares deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/309:54 pmPIA - LAS
Nonstop3h 38mAllegiant Air
Fri 12/53:38 pmLAS - PIA
Nonstop3h 13mAllegiant Air
Deal found 8/12$186
This Kiwi.com deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/151:10 pmPIA - LAS
Nonstop3h 33mAllegiant Air
Fri 9/266:05 amLAS - PIA
Nonstop3h 20mAllegiant Air
Deal found 8/12$191
This Kiwi.com deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/151:10 pmPIA - LAS
Nonstop3h 33mMultiple Airlines
Thu 9/183:10 pmLAS - PIA
1 stop27h 14mMultiple Airlines
Deal found 8/12$221
This Kiwi.com deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/2012:56 pmPIA - LAS
Nonstop3h 38mAllegiant Air
Fri 10/246:25 amLAS - PIA
Nonstop3h 06mAllegiant Air
Deal found 8/13$241
This Kiwi.com deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/199:14 pmPIA - LAS
1 stop22h 16mMultiple Airlines
Fri 9/266:05 amLAS - PIA
Nonstop3h 20mMultiple Airlines
Deal found 8/12$242
This Kiwi.com deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/229:14 pmPIA - LAS
1 stop22h 16mMultiple Airlines
Fri 9/266:05 amLAS - PIA
Nonstop3h 20mMultiple Airlines
Deal found 8/13$250
This Cheapflightsfares deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/1912:15 pmPIA - LAS
Nonstop3h 33mAllegiant Air
Fri 9/266:05 amLAS - PIA
Nonstop3h 20mAllegiant Air
Deal found 8/12$253

Cheapflights Fare Finder

 
Customize your flight search to find flights from Peoria 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, Cheapflights users made 2,558,603 searches. Data last updated August 14, 2025.
Use the filters below to find and compare flights from Peoria to Las Vegas that are best for you.

Fly from

Peoria

Fly to

Las Vegas

Route

Depart

Return

Price

PeoriaLas Vegas

PIA - LAS

PIALAS

Greater Peoria

Wed 10/15

1:26 pm-3:04 pm

Nonstop3h 38m

Las Vegas Harry Reid Intl

Wed 10/22

7:30 am-12:36 pm

Nonstop3h 06m

$135

PeoriaLas Vegas

PIA - LAS

PIALAS

Greater Peoria

Mon 9/22

1:10 pm-2:43 pm

Nonstop3h 33m

Las Vegas Harry Reid Intl

Fri 9/26

6:05 am-11:25 am

Nonstop3h 20m

$182

PeoriaLas Vegas

PIA - LAS

PIALAS

Greater Peoria

Sun 11/30

9:54 pm-11:32 pm

Nonstop3h 38m

Las Vegas Harry Reid Intl

Fri 12/5

3:38 pm-8:51 pm

Nonstop3h 13m

$186

PeoriaLas Vegas

PIA - LAS

PIALAS

Greater Peoria

Mon 9/15

1:10 pm-2:43 pm

Nonstop3h 33m

Las Vegas Harry Reid Intl

Fri 9/26

6:05 am-11:25 am

Nonstop3h 20m

$191

PeoriaLas Vegas

PIA - LAS

PIALAS

Greater Peoria

Mon 9/15

1:10 pm-2:43 pm

Nonstop3h 33m

Las Vegas Harry Reid Intl

Thu 9/18

3:10 pm-8:24 pm

1 stop27h 14m

$221

PeoriaLas Vegas

PIA - LAS

PIALAS

Greater Peoria

Mon 10/20

12:56 pm-2:34 pm

Nonstop3h 38m

Las Vegas Harry Reid Intl

Fri 10/24

6:25 am-11:31 am

Nonstop3h 06m

$241

PeoriaLas Vegas

PIA - LAS

PIALAS

Greater Peoria

Fri 9/19

9:14 pm-5:30 pm

1 stop22h 16m

Las Vegas Harry Reid Intl

Fri 9/26

6:05 am-11:25 am

Nonstop3h 20m

$242

PeoriaLas Vegas

PIA - LAS

PIALAS

Greater Peoria

Mon 9/15

9:14 pm-5:30 pm

1 stop22h 16m

Las Vegas Harry Reid Intl

Fri 9/26

6:05 am-11:25 am

Nonstop3h 20m

$244

PeoriaLas Vegas

PIA - LAS

PIALAS

Greater Peoria

Mon 9/22

9:14 pm-5:30 pm

1 stop22h 16m

Las Vegas Harry Reid Intl

Fri 9/26

6:05 am-11:25 am

Nonstop3h 20m

$250

PeoriaLas Vegas

PIA - LAS

PIALAS

Greater Peoria

Fri 9/26

9:14 pm-5:30 pm

1 stop22h 16m

$136

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/12

Showing 1-10 of 17 results
1
2

Best time to book a flight from Peoria to Las Vegas

Have a flexible travel schedule? Discover the best time to fly to Las Vegas from Peoria 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 Peoria to Las Vegas

How far ahead should I book a flight from Peoria, Illinois to Las Vegas?

Use this chart to determine the optimal time to book a round-trip flight from Peoria to Las Vegas. Price data was last updated on August 8, 2025.

The best time to book flights from Peoria, Illinois to Las Vegas is 37 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, August is the cheapest month in which you can book a flight from Peoria, Illinois to Las Vegas (average of $198). Flying from Peoria, 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 PIA to LAS?

Find hourly flight availability from Peoria 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 August 14, 2025.

It’s typically best to fly out from Peoria, Illinois to Las Vegas in the afternoon. Doing so could potentially save you 38% on the flight price compared to flying at noon, which is usually more expensive.

What is the cheapest day to fly from Peoria, Illinois to Las Vegas?

Use this chart to determine the cheapest time to fly round-trip from Peoria to Las Vegas. Price data was last updated on August 10, 2025.

Travelers seeking maximum savings on their Peoria, Illinois to Las Vegas flight should consider departing on Monday evenings when fares are most often at their lowest. Saturday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

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

Reviews of airlines servicing Las Vegas

Get insights into the airlines that provide service to Las Vegas. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Las Vegas. Reviews last updated August 14, 2025.
Read through reviews of airlines operating flights from Peoria to Las Vegas, such as United Airlines, American Airlines, and Allegiant Air. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,916 reviews

Overall

7.4

Entertainment

7.1

Boarding

7.7

Crew

8.1

Comfort

7.3

Food

6.6

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!
United Airlines
7.4
Good
8,916 reviews
United Airlines
7.4
Good
8,916 reviews

Overall

7.4

Entertainment

7.1

Boarding

7.7

Crew

8.1

Comfort

7.3

Food

6.6

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!
American Airlines
7.2
Good
10,000 reviews
United Airlines
7.4
Good
8,916 reviews

Overall

7.4

Entertainment

7.1

Boarding

7.7

Crew

8.1

Comfort

7.3

Food

6.6

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!
Allegiant Air
7.2
Good
701 reviews
United Airlines
7.4
Good
8,916 reviews

Overall

7.4

Entertainment

7.1

Boarding

7.7

Crew

8.1

Comfort

7.3

Food

6.6

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!

Related info for your journey

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

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

    Within the past month, 12 users have taken a look at flights from Greater Peoria to Las Vegas Harry Reid Intl.

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

    Currently priced at $138, Allegiant Air will fly you from Peoria, Illinois to Las Vegas and back. In addition to Allegiant Air, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from American Airlines and United Airlines - these airlines can fly you to your destination from $258 and $268, respectively. Allegiant Air is priced at 56% lower than the current average price of a flight leaving 3 months from now.

  • What are the cheapest flights from Peoria, Illinois to Las Vegas?

    Looking for the cheapest flight from Peoria, Illinois to Las Vegas? While on average our users pay $253, our data indicates the cheapest price to be $158. The most popular route (Greater Peoria - Las Vegas Harry Reid Intl), is priced around $182.

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

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

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

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

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

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

    Currently, August is the cheapest month in which you can book a flight from Peoria, Illinois to Las Vegas (average of $198). Flying from Peoria, 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

Traveling to a place near Las Vegas?

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

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Top 3 airlines flying from Peoria to Las Vegas

Discover the top 3 airlines that operate flights from Peoria to Las Vegas. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated August 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
Allegiant AirCheapest$138Average$259FlexibilityNo cancel feeOn-time88%
American AirlinesCheapest$258Average$393FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$268Average$428FlexibilityNo cancel feeOn-time69%

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