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

A quick flight from Decatur, Illinois to Las Vegas can take about 8h 44m. United Airlines provides one of the quickest options available for as low as $424. Decatur, Illinois and Las Vegas are separated by a distance of 1449 mi.

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 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.

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.

$303+ Cheap Flights from Decatur, IL to Las Vegas

Home Search by date Vacation packages Hotels Flight deals Car rental Travel tips & news

Find cheap flights from Decatur to Las Vegas with Cheapflights

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 Decatur to Las Vegas

Cheapest

Best

Last-minute

One-way

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 September 12, 2026.

Tue 11/249:10 am -

1 stop7h 48m

Fri 11/2711:58 pm -

1 stop6h 37m

Deal found 9/10

$334

Thu 9/249:12 am -

2 stops12h 56m

Mon 9/286:00 am -

2 stops10h 43m

Deal found 9/9

$419

Fri 10/239:12 am -

1 stop8h 20m

Mon 10/2611:45 pm -

2 stops16h 10m

Deal found 9/9

$431

Tue 9/227:20 pm -

1 stop6h 00m

Sat 9/266:00 pm -

2 stops12h 35m

Deal found 9/7

$464

Sat 11/289:15 am -

1 stop11h 11m

Sat 12/59:00 am -

1 stop7h 40m

Deal found 9/11

$491

Tue 11/249:10 am -

2 stops14h 37m

Sat 11/2811:58 pm -

1 stop6h 37m

Deal found 9/11

$499

Thu 11/59:10 am -

2 stops12h 55m

Mon 11/98:44 am -

1 stop7h 26m

Deal found 9/10

$500

Last-minute flights from Decatur to Las Vegas
Discover last-minute flight deals from Decatur to Las Vegas. Data last updated September 12, 2026 and is based on user searches.

Fri 9/187:20 pm -

1 stop6h 00m

Wed 9/239:08 am -

1 stop7h 36m

Deal found 9/10

$564

Sat 9/197:20 pm -

1 stop6h 00m

Thu 9/2410:50 am -

1 stop5h 53m

Deal found 9/9

$529

Tue 9/227:20 pm -

1 stop6h 00m

Sat 9/266:00 pm -

2 stops12h 35m

Deal found 9/7

$464

Thu 9/249:12 am -

2 stops12h 56m

Mon 9/286:00 am -

2 stops10h 43m

Deal found 9/9

$419

Sat 9/267:18 pm -

1 stop16h 09m

Tue 9/2910:50 am -

1 stop5h 53m

Deal found 9/7

$569

Fri 10/239:12 am -

1 stop8h 20m

Mon 10/2611:45 pm -

2 stops16h 10m

Deal found 9/9

$431

Find flight deals from Decatur to Las Vegas

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$334 (United Airlines)
One-way from	$303 (United Airlines)

Provider with most accurate pricing for Decatur Arpt-Las Vegas Harry Reid Intl flight deals.

Search Deals

Provider most trusted by Cheapflights users for Decatur Arpt-Las Vegas Harry Reid Intl flights.

Search Deals

From Decatur Arpt to Las Vegas Harry Reid Intl

Search Deals

One-way flight from Decatur Arpt to Las Vegas Harry Reid Intl

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

DecaturLas Vegas

DEC Decatur Arpt - LAS Las Vegas Harry Reid Intl

DECLAS

Decatur Arpt

Tue 12/1

6:55 pm-8:10 pm

1 stop27h 15m

Las Vegas Harry Reid Intl

Wed 12/31

12:00 am-2:00 am

Nonstop0h 00m

$303

Quickest round-trip

DecaturLas Vegas

DEC Decatur Arpt - LAS Las Vegas Harry Reid Intl

DECLAS

Decatur Arpt

Fri 1/8

9:42 am-4:26 pm

1 stop8h 44m

Las Vegas Harry Reid Intl

Tue 1/12

9:00 am-5:51 pm

1 stop6h 51m

$424

DecaturLas Vegas

DEC Decatur Arpt - LAS Las Vegas Harry Reid Intl

DECLAS

Decatur Arpt

Fri 10/23

9:12 am-3:32 pm

1 stop8h 20m

Las Vegas Harry Reid Intl

Mon 10/26

11:45 pm-5:55 pm

2 stops16h 10m

$431

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

Sorted by cheapest first

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 September.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy1 star	Trust Score*3 stars
FlightHub	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 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.

DEC-LAS

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

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

10,207 reviews

Reviews

1 / 20

2.0

Mediocre

Dawn,Aug 2026

ORD - DEN

I missed my connecting flight because our plane took off ten minutes late and then when we got to the airport another plane was in our shoot waiting to get fueled up and that took 30 minutes so I missed my connecting flight. I asked if I could get off and they assured me the plane would most likely wait for me since they know what time the planes get in because of an app. I was not happy. I had to wait till 7:25 to board the next flight and then that was delayed. Gates changed till 9:20. Terrible

United Airlines

7.4

Good

10,207 reviews

United Airlines

7.4

Good

10,207 reviews

Reviews

1 / 20

2.0

Mediocre

Dawn,Aug 2026

ORD - DEN

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 8h 44m. United Airlines provides one of the quickest options available for as low as $424. 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

Paradise

Mesquite

Henderson

Kingman

North Las Vegas

Boulder City

Needles

Winchester

Sunrise Manor

Browse thousands of different options on Cheapflights for your next trip

Alternative routes

Complete your trip

Flights by cabin class

Las Vegas flight routes

Other flight options

Other flights from Decatur

Popular flights

Top airline flying from Decatur to Las Vegas

Airline	Cheapest	Average	Flexibility	On-time
United Airlines	Cheapest$264	Average$334	FlexibilityNo cancel fee	On-time69%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.

$303+ 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 12/1. 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 September 12, 2026.

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 September 12, 2026.

Best flights from Decatur to Las VegasDiscover 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 September 12, 2026.

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 September 12, 2026.

Last-minute flights from Decatur to Las VegasDiscover last-minute flight deals from Decatur to Las Vegas. Data last updated September 12, 2026 and is based on user searches.

Discover last-minute flight deals from Decatur to Las Vegas. Data last updated September 12, 2026 and is based on user searches.

One-way flights from Decatur to Las VegasSearch for one-way flight options from Decatur to Las Vegas. Find affordable one-way fares based on user searches. Data last updated September 12, 2026.

Search for one-way flight options from Decatur to Las Vegas. Find affordable one-way fares based on user searches. Data last updated September 12, 2026.

Find flight deals from Decatur to Las Vegas

Most accurate provider

Most trusted provider

Round-trip from

One-way 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 September.

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.

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

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

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?

Traveling to a place near Las Vegas?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Decatur to Las Vegas

See prices for flight routes from nearby airports that may be better suited for you.

Complete your trip

Complete your trip to Las Vegas by adding a car rental and/or hotel reservation to your travel itinerary.

Search flights from Decatur to Las Vegas by cabin class

Find flights from Decatur to Las Vegas, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Other flights to Las Vegas

Explore flights to Las Vegas departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on September 12, 2026.

Decatur and Las Vegas flights

Browse other Decatur and Las Vegas flight options. Last updated on September 12, 2026.

Other flights from Decatur

Browse through other flights departing from Decatur. Flights are based on user searches made on Cheapflights and were last updated on September 12, 2026.

Popular flight searches

Check out other popular destinations found by fellow travelers in 2026

Top airline flying from Decatur to Las Vegas

100% Free

Book with Flexibility

Travel Smart

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 September 12, 2026.

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 September 12, 2026.

Last-minute flights from Decatur to Las Vegas
Discover last-minute flight deals from Decatur to Las Vegas. Data last updated September 12, 2026 and is based on user searches.

One-way flights from Decatur to Las Vegas
Search for one-way flight options from Decatur to Las Vegas. Find affordable one-way fares based on user searches. Data last updated September 12, 2026.