$309+ Cheap flights from Las Vegas to Decatur, IL (LAS - DEC)
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 10/17. Fares are subject to change and may not be available on all flights or dates of travel.
LAS — DEC
Oct 14 — Oct 211
Round-trip
1 adult, Economy
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Find cheap flights from Las Vegas to Decatur 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 Las Vegas to Decatur
Cheapest
Best
Last-minute
One-way
Cheapest flights from Las Vegas to DecaturExplore the most affordable flight options available from Las Vegas to Decatur. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 14, 2026.
Explore the most affordable flight options available from Las Vegas to Decatur. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 14, 2026.
This United Airlines deal was found by Cheapflights users on 9/11. 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 11/58:44 am -
1 stop7h 26m
Sun 11/89:10 am -
2 stops12h 48m
Deal found 9/11![United Airlines logo]()
$434
This United Airlines deal was found by Cheapflights users on 9/9. 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 9/2410:50 am -
1 stop5h 53m
Mon 9/289:12 am -
2 stops12h 52m
Deal found 9/9![United Airlines logo]()
$504
This United Airlines deal was found by Cheapflights users on 9/10. 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 11/48:44 am -
1 stop7h 26m
Sat 11/76:57 pm -
1 stop24h 14m
Deal found 9/10![United Airlines logo]()
$506
This United Airlines deal was found by Cheapflights users on 9/11. 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.
Fri 11/68:44 am -
1 stop7h 26m
Sun 11/89:10 am -
2 stops12h 48m
Deal found 9/11![United Airlines logo]()
$510
Best flights from Las Vegas to DecaturDiscover carefully curated flight deals from Las Vegas to Decatur that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 14, 2026.
Discover carefully curated flight deals from Las Vegas to Decatur that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 14, 2026.
This United Airlines deal was found by Cheapflights users on 9/10. 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.
Thu 11/58:44 am -
1 stop7h 26m
Sun 11/89:10 am -
2 stops12h 48m
Deal found 9/10![United Airlines logo]()
$434
This United Airlines deal was found by Cheapflights users on 9/11. 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.
Fri 11/611:45 pm -
2 stops16h 10m
Sun 11/89:10 am -
2 stops12h 48m
Deal found 9/11![United Airlines logo]()
$439
This United Airlines deal was found by Cheapflights users on 9/10. 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 11/48:44 am -
1 stop7h 26m
Sat 11/76:57 pm -
1 stop24h 14m
Deal found 9/10![United Airlines logo]()
$506
Last-minute flights from Las Vegas to DecaturDiscover last-minute flight deals from Las Vegas to Decatur. Data last updated September 14, 2026 and is based on user searches.
Discover last-minute flight deals from Las Vegas to Decatur. Data last updated September 14, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 9/9. 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 9/2410:50 am -
1 stop5h 53m
Mon 9/289:12 am -
2 stops12h 52m
Deal found 9/9![United Airlines logo]()
$504
This United Airlines deal was found by Cheapflights users on 9/10. 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.
Fri 9/256:09 am -
2 stops10h 34m
Tue 9/297:18 pm -
1 stop22h 14m
Deal found 9/10![United Airlines logo]()
$592
One-way flights from Las Vegas to DecaturSearch for one-way flight options from Las Vegas to Decatur. Find affordable one-way fares based on user searches. Data last updated September 14, 2026.
Search for one-way flight options from Las Vegas to Decatur. Find affordable one-way fares based on user searches. Data last updated September 14, 2026.
This United Airlines deal was found by Cheapflights users on 9/13. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/176:00 am -
1 stop24h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/13![United Airlines logo]()
$309
Find flight deals from Las Vegas to Decatur
Discover tips and strategies to find the most affordable flight options for your journey from Las Vegas (LAS) to Decatur (DEC). 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 September 14, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $434 (United Airlines) |
One-way from | $309 (United Airlines) |
Cheapflights Fare Finder
Customize your flight search to find flights from Las Vegas to Decatur 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 7,457,451 searches. Data last updated September 14, 2026.
Use the filters below to find and compare flights from Las Vegas to Decatur that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Las VegasDecatur
LAS Las Vegas Harry Reid Intl - DEC Decatur Arpt
LASDEC
Las Vegas Harry Reid Intl
Sat 10/17
6:00 am-8:35 am
1 stop24h 35m
Decatur Arpt
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$309
Quickest round-trip
Las VegasDecatur
LAS Las Vegas Harry Reid Intl - DEC Decatur Arpt
LASDEC
Las Vegas Harry Reid Intl
Thu 11/5
8:44 am-6:10 pm
1 stop7h 26m
Decatur Arpt
Sun 11/8
9:10 am-7:58 pm
2 stops12h 48m
$434
Las VegasDecatur
LAS Las Vegas Harry Reid Intl - DEC Decatur Arpt
LASDEC
Las Vegas Harry Reid Intl
Fri 11/6
11:45 pm-5:55 pm
2 stops16h 10m
Decatur Arpt
Sun 11/8
9:10 am-7:58 pm
2 stops12h 48m
$439
Las VegasDecatur
LAS Las Vegas Harry Reid Intl - DEC Decatur Arpt
LASDEC
Las Vegas Harry Reid Intl
Wed 11/4
8:44 am-6:10 pm
1 stop7h 26m
Decatur Arpt
Sat 11/7
6:57 pm-5:11 pm
1 stop24h 14m
$506
Sorted by cheapest first
Compare providers for flights from Las Vegas to Decatur
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 Las Vegas to Decatur in September.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Las Vegas-Decatur, Illinois flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Las Vegas-Decatur, Illinois flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Las Vegas-Decatur, Illinois flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Las Vegas-Decatur, Illinois 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 Las Vegas-Decatur, Illinois 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 Las Vegas to Decatur
Have a flexible travel schedule? Discover the best time to fly to Decatur from Las Vegas with our price prediction graph.
LAS-DEC
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.
Related info for your journey
Find useful and relevant information for your journey from Las Vegas to Decatur. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Decatur?
Book flights to Decatur if you plan to visit one of these locationsMattoon
Effingham
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