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

A quick flight from Decatur, Illinois to Las Vegas can take about 12h 37m. United Airlines provides one of the quickest options available for as low as $274. 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.

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 is the cheapest time of day to fly from DEC to LAS?

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

Most accurate provider : When it comes to deals on Decatur, Illinois-Las Vegas flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Decatur, Illinois-Las Vegas flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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.

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.

$274+ Flights from Decatur, IL to Las Vegas

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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 December 12, 2025.

Thu 12/259:44 amDEC - LAS

2 stops16h 45mUnited Airlines

Mon 12/2911:59 pmLAS - DEC

1 stop7h 06mUnited Airlines

Deal found 12/10

$585

Fri 12/269:44 amDEC - LAS

1 stop7h 19mUnited Airlines

Tue 12/3011:59 pmLAS - DEC

1 stop7h 06mUnited Airlines

Deal found 12/11

$776

Best flights from Decatur to Las Vegas
Discover carefully curated flight deals from Decatur to Las Vegas that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 12, 2025.

Thu 3/129:50 amDEC - LAS

2 stops12h 37mUnited Airlines

Sun 3/1511:59 pmLAS - DEC

1 stop6h 53mUnited Airlines

Deal found 12/10

$274

Mon 2/167:05 pmDEC - LAS

1 stop6h 25mUnited Airlines

Mon 2/236:15 amLAS - DEC

2 stops9h 41mUnited Airlines

Deal found 12/11

$374

Thu 4/99:42 amDEC - LAS

2 stops12h 43mUnited Airlines

Mon 4/1311:59 pmLAS - DEC

2 stops15h 52mUnited Airlines

Deal found 12/11

$379

Wed 4/89:42 amDEC - LAS

2 stops12h 43mUnited Airlines

Mon 4/1311:59 pmLAS - DEC

2 stops15h 52mUnited Airlines

Deal found 12/11

$379

Sat 1/107:09 pmDEC - LAS

1 stop16h 40mUnited Airlines

Wed 1/147:15 amLAS - DEC

1 stop8h 46mUnited Airlines

Deal found 12/9

$409

Last-minute flights from Decatur to Las Vegas
Discover last-minute flight deals from Decatur to Las Vegas. Data last updated December 12, 2025 and is based on user searches.

Thu 12/259:44 amDEC - LAS

2 stops16h 45mUnited Airlines

Mon 12/2911:59 pmLAS - DEC

1 stop7h 06mUnited Airlines

Deal found 12/10

$585

Fri 12/269:44 amDEC - LAS

1 stop7h 19mUnited Airlines

Tue 12/3011:59 pmLAS - DEC

1 stop7h 06mUnited Airlines

Deal found 12/11

$776

Sat 1/107:09 pmDEC - LAS

1 stop16h 40mUnited Airlines

Wed 1/147:15 amLAS - DEC

1 stop8h 46mUnited Airlines

Deal found 12/9

$409

Find flight deals from Decatur to Las Vegas

Most accurate provider	eDreams 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$274 (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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Fly from

Fly to

Route

Depart

Return

Price

DecaturLas Vegas

DEC - LAS

DECLAS

Decatur Arpt

Thu 3/12

9:50 am-8:27 pm

2 stops12h 37m

Las Vegas Harry Reid Intl

Sun 3/15

11:59 pm-8:52 am

1 stop6h 53m

$274

DecaturLas Vegas

DEC - LAS

DECLAS

Decatur Arpt

Mon 2/16

7:05 pm-11:30 pm

1 stop6h 25m

Las Vegas Harry Reid Intl

Mon 2/23

6:15 am-5:56 pm

2 stops9h 41m

$374

DecaturLas Vegas

DEC - LAS

DECLAS

Decatur Arpt

Thu 4/9

9:42 am-8:25 pm

2 stops12h 43m

Las Vegas Harry Reid Intl

Mon 4/13

11:59 pm-5:51 pm

2 stops15h 52m

$379

DecaturLas Vegas

DEC - LAS

DECLAS

Decatur Arpt

Wed 4/8

9:42 am-8:25 pm

2 stops12h 43m

Las Vegas Harry Reid Intl

Mon 4/13

11:59 pm-5:51 pm

2 stops15h 52m

$379

DecaturLas Vegas

DEC - LAS

DECLAS

Decatur Arpt

Sat 1/10

7:09 pm-9:49 am

1 stop16h 40m

Las Vegas Harry Reid Intl

Wed 1/14

7:15 am-6:01 pm

1 stop8h 46m

$409

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/10

Compare providers for flights from Decatur to Las Vegas

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 December.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy2 stars	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*1 star
eDreams	Price Accuracy3 stars	Trust 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 eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Decatur, Illinois-Las Vegas flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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 $176). 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

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

9,095 reviews

Reviews

1 / 20

10.0

Excellent

Sunderesh,Dec 2025

AUS - EWR

Smooth flight from Austin to Newark. The crew was friendly.

United Airlines

7.4

Good

9,095 reviews

United Airlines

7.4

Good

9,095 reviews

Reviews

1 / 20

10.0

Excellent

Sunderesh,Dec 2025

AUS - EWR

Smooth flight from Austin to Newark. The crew was friendly.

Related info for your journey

How long is the flight from Decatur, Illinois to Las Vegas?
A quick flight from Decatur, Illinois to Las Vegas can take about 12h 37m. United Airlines provides one of the quickest options available for as low as $274. 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 $176). 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.

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Alternative routes for Decatur to Las Vegas

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Other flights to Las Vegas

Top airline flying from Decatur to Las Vegas

Airline	Cheapest	Average	Flexibility	On-time
United Airlines	Cheapest$264	Average$399	FlexibilityNo cancel fee	On-time69%

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$274+ 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 3/12. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Decatur to Las Vegas with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Decatur to Las Vegas

Cheapest flights from Decatur to Las VegasExplore 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 December 12, 2025.

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 December 12, 2025.

Find flight deals from Decatur to Las Vegas

Most accurate provider

Most trusted provider

Round-trip from

Cheapflights Fare Finder

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

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 December.

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.

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?

Reviews of airlines servicing Las Vegas

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.

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?

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

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

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

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

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

Traveling to a place near Las Vegas?

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Alternative routes for Decatur to Las Vegas

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Top airline flying from Decatur to Las Vegas

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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 December 12, 2025.