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$281+ Cheap flights from Decatur, IL to Las Vegas (DEC - 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 5/17. Fares are subject to change and may not be available on all flights or dates of travel.
DEC — LAS
Apr 12 — Apr 191
Sun 4/12
Sun 4/19
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 March 13, 2026.

This United Airlines deal was found by Cheapflights users on 3/8. 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.
Fri 7/179:37 am
DEC
-
LAS
2 stops14h 42m
United Airlines
Sat 7/2511:30 pm
LAS
-
DEC
1 stop7h 27m
United Airlines
Deal found 3/8$314
This United Airlines deal was found by Cheapflights users on 3/8. 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 6/177:05 pm
DEC
-
LAS
1 stop6h 48m
United Airlines
Sat 6/2012:36 am
LAS
-
DEC
1 stop6h 21m
United Airlines
Deal found 3/8$337
This United Airlines deal was found by Cheapflights users on 3/12. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/57:05 pm
DEC
-
LAS
1 stop6h 48m
United Airlines
Tue 6/911:30 pm
LAS
-
DEC
1 stop7h 27m
United Airlines
Deal found 3/12$404
This United Airlines deal was found by Cheapflights users on 3/12. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/59:37 am
DEC
-
LAS
2 stops12h 20m
United Airlines
Sun 6/712:36 am
LAS
-
DEC
1 stop6h 21m
United Airlines
Deal found 3/12$414
This United Airlines deal was found by Cheapflights users on 3/10. 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 4/159:52 am
DEC
-
LAS
2 stops14h 05m
United Airlines
Sat 4/187:10 pm
LAS
-
DEC
2 stops11h 48m
United Airlines
Deal found 3/10$419
This United Airlines deal was found by Cheapflights users on 3/11. 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 7/99:37 am
DEC
-
LAS
2 stops12h 44m
United Airlines
Sun 7/128:31 pm
LAS
-
DEC
2 stops10h 26m
United Airlines
Deal found 3/11$444
This United Airlines deal was found by Cheapflights users on 3/12. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/307:25 pm
DEC
-
LAS
1 stop6h 34m
United Airlines
Sun 5/37:07 pm
LAS
-
DEC
2 stops11h 51m
United Airlines
Deal found 3/12$448

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 March 13, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$314
(United Airlines)

One-way from

$281
(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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One-way flight 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 March 13, 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 6/17

7:05 pm-11:53 pm

1 stop6h 48m

Las Vegas Harry Reid Intl

Sat 6/20

12:36 am-8:57 am

1 stop6h 21m

$337

DecaturLas Vegas

DEC - LAS

DECLAS

Decatur Arpt

Fri 7/17

7:05 pm-11:53 pm

1 stop6h 48m

Las Vegas Harry Reid Intl

Sat 7/25

11:30 pm-8:57 am

1 stop7h 27m

$357

DecaturLas Vegas

DEC - LAS

DECLAS

Decatur Arpt

Wed 7/15

7:05 pm-11:53 pm

1 stop6h 48m

Las Vegas Harry Reid Intl

Wed 7/22

11:30 pm-8:57 am

1 stop7h 27m

$404

DecaturLas Vegas

DEC - LAS

DECLAS

Decatur Arpt

Thu 7/9

7:05 pm-11:53 pm

1 stop6h 48m

Las Vegas Harry Reid Intl

Sun 7/12

11:30 pm-8:57 am

1 stop7h 27m

$404

DecaturLas Vegas

DEC - LAS

DECLAS

Decatur Arpt

Wed 4/15

9:52 am-9:57 pm

2 stops14h 05m

Las Vegas Harry Reid Intl

Sat 4/18

7:10 pm-8:58 am

2 stops11h 48m

$419

DecaturLas Vegas

DEC - LAS

DECLAS

Decatur Arpt

Sat 4/11

7:37 pm-6:27 pm

1 stop24h 50m

Las Vegas Harry Reid Intl

Wed 4/15

11:59 pm-8:58 am

1 stop6h 59m

$479

DecaturLas Vegas

DEC - LAS

DECLAS

Decatur Arpt

Fri 6/26

7:05 pm-9:19 am

1 stop16h 14m

Las Vegas Harry Reid Intl

Thu 7/2

11:30 pm-8:57 am

1 stop7h 27m

$499
Cheapest one-way

DecaturLas Vegas

DEC - LAS

DECLAS

Decatur Arpt

Sat 6/27

7:05 pm-5:57 pm

1 stop24h 52m

$321

DecaturLas Vegas

DEC - LAS

DECLAS

Decatur Arpt

Fri 6/26

7:05 pm-9:07 am

2 stops16h 02m

$327
Quickest one-way

DecaturLas Vegas

DEC - LAS

DECLAS

Decatur Arpt

Sun 5/17

9:42 am-7:07 pm

2 stops11h 25m

$329

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/9

Sorted by cheapest first

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 March.
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.

Cheapflights Insights

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

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

Currently, May is the cheapest month in which you can book a flight from Decatur, Illinois to Las Vegas (average of $111). Flying from Decatur, Illinois to Las Vegas in September is currently the most expensive (average of $169). 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 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 March 13, 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
9,418 reviews

Food

6.6

Comfort

7.3

Overall

7.4

Entertainment

7.1

Boarding

7.7

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family
United Airlines
7.4
Good
9,418 reviews
United Airlines
7.4
Good
9,418 reviews

Food

6.6

Comfort

7.3

Overall

7.4

Entertainment

7.1

Boarding

7.7

Crew

8.1

Reviews

1 / 20
10.0
Excellent

Dane,Jan 2026

TYS - IAD

It was a short flight, so no time for amenities. Just glad everything was quick and easy from boarding to arriving at my destination with my family

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 6h 48m. United Airlines provides one of the quickest options available for as low as $337. Decatur, Illinois and Las Vegas are separated by a distance of 1449 mi.

  • What is the cheapest airline to fly from Decatur, Illinois to Las Vegas round-trip?

    Currently priced at $264, United Airlines will fly you from Decatur, Illinois to Las Vegas and back. In addition to United Airlines, many other airlines offer competitively priced options for your trip.

  • 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.

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

    Currently, May is the cheapest month in which you can book a flight from Decatur, Illinois to Las Vegas (average of $111). Flying from Decatur, Illinois to Las Vegas in September is currently the most expensive (average of $169). 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
Henderson
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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 March 13, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$264Average$395FlexibilityNo cancel feeOn-time69%

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