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$324+ Cheap flights from Decatur, IL to Las Vegas (DEC - 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 7/1. Fares are subject to change and may not be available on all flights or dates of travel.
DEC — LAS
Jul 12 — Jul 191
Sun 7/12
Sun 7/19
1 adult, Economy
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Cheap flight deals from Decatur to Las Vegas

Cheapest flights from Decatur to Las Vegas
Explore the most affordable flight options available from Decatur to Las Vegas. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 12, 2026.

This United Airlines deal was found by Cheapflights users on 6/9. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/19:37 am
DEC
-
LAS
1 stop7h 08m
United Airlines
Tue 7/77:00 am
LAS
-
DEC
1 stop8h 56m
United Airlines
Deal found 6/9$324
This United Airlines deal was found by Cheapflights users on 6/9. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/139:12 am
DEC
-
LAS
1 stop8h 50m
United Airlines
Tue 8/1811:55 pm
LAS
-
DEC
1 stop6h 42m
United Airlines
Deal found 6/9$424
This United Airlines deal was found by Cheapflights users on 6/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/129:12 am
DEC
-
LAS
1 stop8h 50m
United Airlines
Sat 8/1511:55 pm
LAS
-
DEC
1 stop6h 42m
United Airlines
Deal found 6/10$445
This United Airlines deal was found by Cheapflights users on 6/8. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/309:42 am
DEC
-
LAS
2 stops12h 36m
United Airlines
Tue 10/66:00 pm
LAS
-
DEC
2 stops12h 46m
United Airlines
Deal found 6/8$470

Find flight deals from Decatur to Las Vegas

Discover tips and strategies to find the most affordable flight options for your journey from Decatur (DEC) 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 June 12, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$324
(United Airlines)
Provider with most accurate pricing for Decatur Arpt-Las Vegas Harry Reid Intl flight deals.
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Provider most trusted by Cheapflights users for Decatur Arpt-Las Vegas Harry Reid Intl flights.
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From Decatur Arpt to Las Vegas Harry Reid Intl
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Decatur 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 June 12, 2026.
Use the filters below to find and compare flights from Decatur to Las Vegas that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

DecaturLas Vegas

DEC - LAS

DECLAS

Decatur Arpt

Wed 8/26

9:12 am-2:44 pm

1 stop7h 32m

Las Vegas Harry Reid Intl

Sun 8/30

11:55 pm-7:37 am

1 stop5h 42m

$324

DecaturLas Vegas

DEC - LAS

DECLAS

Decatur Arpt

Wed 7/1

9:37 am-2:45 pm

1 stop7h 08m

Las Vegas Harry Reid Intl

Tue 7/7

7:00 am-5:56 pm

1 stop8h 56m

$324

DecaturLas Vegas

DEC - LAS

DECLAS

Decatur Arpt

Wed 8/19

9:12 am-5:02 pm

2 stops9h 50m

Las Vegas Harry Reid Intl

Mon 8/24

7:10 am-5:59 pm

1 stop8h 49m

$434

DecaturLas Vegas

DEC - LAS

DECLAS

Decatur Arpt

Wed 9/30

9:42 am-3:32 pm

1 stop7h 50m

Las Vegas Harry Reid Intl

Tue 10/6

9:00 am-5:51 pm

1 stop6h 51m

$455

DecaturLas Vegas

DEC - LAS

DECLAS

Decatur Arpt

Wed 8/12

9:12 am-6:24 pm

2 stops11h 12m

Las Vegas Harry Reid Intl

Sat 8/15

7:15 am-5:59 pm

1 stop8h 44m

$455

DecaturLas Vegas

DEC - LAS

DECLAS

Decatur Arpt

Sat 8/29

7:20 pm-9:27 am

1 stop16h 07m

Las Vegas Harry Reid Intl

Sat 9/5

11:55 pm-8:37 am

1 stop6h 42m

$486

DecaturLas Vegas

DEC - LAS

DECLAS

Decatur Arpt

Sat 7/4

6:45 pm-9:59 pm

1 stop29h 14m

Las Vegas Harry Reid Intl

Tue 7/7

11:59 pm-8:57 am

1 stop6h 58m

$519

DecaturLas Vegas

DEC - LAS

DECLAS

Decatur Arpt

Sat 10/17

6:55 pm-8:36 am

2 stops15h 41m

Las Vegas Harry Reid Intl

Thu 10/22

11:50 pm-8:46 am

1 stop6h 56m

$524

DecaturLas Vegas

DEC - LAS

DECLAS

Decatur Arpt

Thu 7/16

9:37 am-8:21 pm

2 stops12h 44m

Las Vegas Harry Reid Intl

Sun 7/19

11:59 pm-8:57 am

1 stop6h 58m

$524
Cheapest one-way

DecaturLas Vegas

DEC - LAS

DECLAS

Decatur Arpt

Thu 9/24

6:55 pm-6:43 pm

1 stop25h 48m

$326

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/7

Showing 1-10 of 12 resultsSorted by cheapest first
1
2

Compare providers for flights from Decatur to Las Vegas

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Decatur to Las Vegas in June.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 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 Decatur, 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 Decatur, Illinois-Las Vegas flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Decatur, Illinois-Las Vegas flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Decatur, 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 Decatur, 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 Decatur to Las Vegas

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

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 June 12, 2026.
Peruse reviews from past customers who have flown with United Airlines from Decatur to Las Vegas to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
9,810 reviews

Crew

8.1

Boarding

7.7

Comfort

7.3

Food

6.6

Entertainment

7.1

Overall

7.4

Reviews

1 / 20
4.0
Okay

Dynasty,May 2026

LAX - EWR

The food wasn’t nice - Hosts were not that kind.
United Airlines
7.4
Good
9,810 reviews
United Airlines
7.4
Good
9,810 reviews

Crew

8.1

Boarding

7.7

Comfort

7.3

Food

6.6

Entertainment

7.1

Overall

7.4

Reviews

1 / 20
4.0
Okay

Dynasty,May 2026

LAX - EWR

The food wasn’t nice - Hosts were not that kind.

Related info for your journey

Find useful and relevant information for your journey from Decatur 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 long is the flight from Decatur, Illinois to Las Vegas?

    A quick flight from Decatur, Illinois to Las Vegas can take about 7h 32m. United Airlines provides one of the quickest options available for as low as $324. Decatur, Illinois and Las Vegas are separated by a distance of 1449 mi.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Decatur 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.

See more FAQs

Traveling to a place near Las Vegas?

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Top airline flying from Decatur to Las Vegas

Discover the top airline that operate flights from Decatur 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 June 12, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$264Average$394FlexibilityNo cancel feeOn-time69%

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