$293+ 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 9/28. Fares are subject to change and may not be available on all flights or dates of travel.
DEC — LAS
Sep 8 — Sep 151
Round-trip
1 adult, Economy
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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
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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 August 9, 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 August 9, 2026.
This United Airlines deal was found by Cheapflights users on 8/5. 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 9/197:20 pm -
1 stop6h 00m
Tue 9/2911:50 pm -
1 stop6h 45m
Deal found 8/5![United Airlines logo]()
$334
This United Airlines deal was found by Cheapflights users on 8/7. 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 9/119:12 am -
2 stops12h 56m
Mon 9/149:08 am -
1 stop7h 35m
Deal found 8/7![United Airlines logo]()
$370
This United Airlines deal was found by Cheapflights users on 8/7. 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 9/197:20 pm -
1 stop6h 00m
Sat 9/2610:50 am -
1 stop5h 53m
Deal found 8/7![United Airlines logo]()
$424
This United Airlines deal was found by Cheapflights users on 8/5. 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 9/109:12 am -
2 stops12h 52m
Tue 9/156:00 am -
2 stops10h 44m
Deal found 8/5![United Airlines logo]()
$439
This United Airlines deal was found by Cheapflights users on 8/5. 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 12/109:42 am -
3 stops12h 25m
Sun 12/1311:55 pm -
2 stops15h 56m
Deal found 8/5![United Airlines logo]()
$445
This United Airlines deal was found by Cheapflights users on 8/4. 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 9/39:12 am -
2 stops12h 52m
Wed 9/911:50 pm -
1 stop6h 15m
Deal found 8/4![United Airlines logo]()
$462
This United Airlines deal was found by Cheapflights users on 8/5. 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 9/57:20 pm -
1 stop18h 04m
Wed 9/910:50 am -
1 stop5h 54m
Deal found 8/5![United Airlines logo]()
$477
This United Airlines deal was found by Cheapflights users on 8/6. 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 11/66:57 pm -
1 stop29h 35m
Mon 11/98:44 am -
1 stop7h 11m
Deal found 8/6![United Airlines logo]()
$481
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 August 9, 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 August 9, 2026.
This United Airlines deal was found by Cheapflights users on 8/8. 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.
Sat 1/306:55 pm -
1 stop6h 49m
Tue 2/211:30 pm -
1 stop7h 16m
Deal found 8/8![United Airlines logo]()
$424
This United Airlines deal was found by Cheapflights users on 8/5. 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 9/197:20 pm -
1 stop6h 00m
Sat 9/267:45 am -
2 stops8h 58m
Deal found 8/5![United Airlines logo]()
$434
This United Airlines deal was found by Cheapflights users on 8/4. 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.
Tue 12/86:55 pm -
1 stop6h 49m
Sat 12/125:07 pm -
2 stops13h 39m
Deal found 8/4![United Airlines logo]()
$434
This United Airlines deal was found by Cheapflights users on 8/7. 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 11/199:10 am -
2 stops12h 55m
Mon 11/237:50 pm -
2 stops10h 45m
Deal found 8/7![United Airlines logo]()
$439
This United Airlines deal was found by Cheapflights users on 8/6. 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 9/189:12 am -
2 stops12h 52m
Tue 9/226:00 am -
2 stops10h 44m
Deal found 8/6![United Airlines logo]()
$439
This United Airlines deal was found by Cheapflights users on 8/5. 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 9/109:12 am -
2 stops12h 52m
Tue 9/156:00 am -
2 stops10h 44m
Deal found 8/5![United Airlines logo]()
$439
This United Airlines deal was found by Cheapflights users on 8/5. 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 9/119:12 am -
2 stops12h 56m
Tue 9/157:35 am -
2 stops9h 09m
Deal found 8/5![United Airlines logo]()
$439
This United Airlines deal was found by Cheapflights users on 8/4. 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 9/39:12 am -
2 stops12h 52m
Wed 9/911:50 pm -
1 stop6h 15m
Deal found 8/4![United Airlines logo]()
$462
This United Airlines deal was found by Cheapflights users on 8/6. 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 11/66:57 pm -
1 stop29h 35m
Mon 11/98:44 am -
1 stop7h 11m
Deal found 8/6![United Airlines logo]()
$481
Last-minute flights from Decatur to Las VegasDiscover last-minute flight deals from Decatur to Las Vegas. Data last updated August 9, 2026 and is based on user searches.
Discover last-minute flight deals from Decatur to Las Vegas. Data last updated August 9, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 8/4. 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 8/209:12 am -
1 stop8h 50m
Mon 8/247:10 am -
1 stop8h 49m
Deal found 8/4![United Airlines logo]()
$494
This United Airlines deal was found by Cheapflights users on 8/4. 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 9/39:12 am -
2 stops12h 52m
Wed 9/911:50 pm -
1 stop6h 15m
Deal found 8/4![United Airlines logo]()
$462
This United Airlines deal was found by Cheapflights users on 8/5. 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 9/57:20 pm -
1 stop18h 04m
Wed 9/910:50 am -
1 stop5h 54m
Deal found 8/5![United Airlines logo]()
$477
This United Airlines deal was found by Cheapflights users on 8/8. 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.
Tue 9/87:20 pm -
1 stop6h 00m
Mon 9/149:08 am -
1 stop7h 35m
Deal found 8/8![United Airlines logo]()
$490
This United Airlines deal was found by Cheapflights users on 8/5. 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 9/109:12 am -
2 stops12h 52m
Tue 9/156:00 am -
2 stops10h 44m
Deal found 8/5![United Airlines logo]()
$439
This United Airlines deal was found by Cheapflights users on 8/7. 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 9/119:12 am -
2 stops12h 56m
Mon 9/149:08 am -
1 stop7h 35m
Deal found 8/7![United Airlines logo]()
$370
This United Airlines deal was found by Cheapflights users on 8/5. 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 9/197:20 pm -
1 stop6h 00m
Tue 9/2911:50 pm -
1 stop6h 45m
Deal found 8/5![United Airlines logo]()
$334
This United Airlines deal was found by Cheapflights users on 8/7. 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 9/197:20 pm -
1 stop6h 00m
Sat 9/2610:50 am -
1 stop5h 53m
Deal found 8/7![United Airlines logo]()
$424
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 August 9, 2026.
Search for one-way flight options from Decatur to Las Vegas. Find affordable one-way fares based on user searches. Data last updated August 9, 2026.
This United Airlines deal was found by Cheapflights users on 8/4. 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.
Mon 9/287:18 pm -
1 stop25h 25m
Deal found 8/4![United Airlines logo]()
$293
This United Airlines deal was found by Cheapflights users on 8/4. 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.
Mon 11/306:57 pm -
2 stops15h 52m
Deal found 8/4![United Airlines logo]()
$355
This United Airlines deal was found by Cheapflights users on 8/5. 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 8/149:12 am -
1 stop28h 11m
Deal found 8/5![United Airlines logo]()
$399
This United Airlines deal was found by Cheapflights users on 8/5. 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 8/157:20 pm -
1 stop21h 24m
Deal found 8/5![United Airlines logo]()
$438
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 August 9, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $334 (United Airlines) |
One-way from | $293 (United Airlines) |
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 August 9, 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
Cheapest round-trip
Quickest round-trip
DecaturLas Vegas
DEC Decatur Arpt - LAS Las Vegas Harry Reid Intl
DECLAS
Decatur Arpt
Sat 1/30
6:55 pm-11:44 pm
1 stop6h 49m
Las Vegas Harry Reid Intl
Tue 2/2
11:30 pm-8:46 am
1 stop7h 16m
$424
DecaturLas Vegas
DEC Decatur Arpt - LAS Las Vegas Harry Reid Intl
DECLAS
Decatur Arpt
Sat 9/19
7:20 pm-11:20 pm
1 stop6h 00m
Las Vegas Harry Reid Intl
Sat 9/26
7:45 am-6:43 pm
2 stops8h 58m
$434
DecaturLas Vegas
DEC Decatur Arpt - LAS Las Vegas Harry Reid Intl
DECLAS
Decatur Arpt
Tue 12/8
6:55 pm-11:44 pm
1 stop6h 49m
Las Vegas Harry Reid Intl
Sat 12/12
5:07 pm-8:46 am
2 stops13h 39m
$434
DecaturLas Vegas
DEC Decatur Arpt - LAS Las Vegas Harry Reid Intl
DECLAS
Decatur Arpt
Thu 11/19
9:10 am-8:05 pm
2 stops12h 55m
Las Vegas Harry Reid Intl
Mon 11/23
7:50 pm-8:35 am
2 stops10h 45m
$439
DecaturLas Vegas
DEC Decatur Arpt - LAS Las Vegas Harry Reid Intl
DECLAS
Decatur Arpt
Fri 9/18
9:12 am-8:04 pm
2 stops12h 52m
Las Vegas Harry Reid Intl
Tue 9/22
6:00 am-6:44 pm
2 stops10h 44m
$439
DecaturLas Vegas
DEC Decatur Arpt - LAS Las Vegas Harry Reid Intl
DECLAS
Decatur Arpt
Thu 9/10
9:12 am-8:04 pm
2 stops12h 52m
Las Vegas Harry Reid Intl
Tue 9/15
6:00 am-6:44 pm
2 stops10h 44m
$439
DecaturLas Vegas
DEC Decatur Arpt - LAS Las Vegas Harry Reid Intl
DECLAS
Decatur Arpt
Fri 9/11
9:12 am-8:08 pm
2 stops12h 56m
Las Vegas Harry Reid Intl
Tue 9/15
7:35 am-6:44 pm
2 stops9h 09m
$439
DecaturLas Vegas
DEC Decatur Arpt - LAS Las Vegas Harry Reid Intl
DECLAS
Decatur Arpt
Thu 9/3
9:12 am-8:04 pm
2 stops12h 52m
Las Vegas Harry Reid Intl
Wed 9/9
11:50 pm-8:05 am
1 stop6h 15m
$462
DecaturLas Vegas
DEC Decatur Arpt - LAS Las Vegas Harry Reid Intl
DECLAS
Decatur Arpt
Fri 11/6
6:57 pm-10:32 pm
1 stop29h 35m
Las Vegas Harry Reid Intl
Mon 11/9
8:44 am-5:55 pm
1 stop7h 11m
$481
Cheapest one-way
Quickest one-way
DecaturLas Vegas
DEC Decatur Arpt - LAS Las Vegas Harry Reid Intl
DECLAS
Decatur Arpt
Fri 8/14
7:20 pm-2:34 pm
2 stops21h 14m
$405
Showing 1-10 of 11 resultsSorted 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 August.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- 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
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 August 9, 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.
Boarding
7.7
Entertainment
7.1
Overall
7.4
Comfort
7.3
Food
6.7
Crew
8.1
Reviews
1 / 20
2.0
MediocreDawn,Aug 2026
ORD - DEN
Boarding
7.7
Entertainment
7.1
Overall
7.4
Comfort
7.3
Food
6.7
Crew
8.1
Reviews
1 / 20
2.0
MediocreDawn,Aug 2026
ORD - DEN
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.
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Decatur and Las Vegas flights
Browse other Decatur and Las Vegas flight options. Last updated on August 9, 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 August 9, 2026.
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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 August 9, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$264 | Average$344 | FlexibilityNo cancel fee | On-time69% |