$309+ Cheap flights from Austin to Decatur, IL (AUS - 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.
AUS — DEC
Oct 10 — Oct 171
Round-trip
1 adult, Economy
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Find cheap flights from Austin 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 Austin to Decatur
Cheapest
Best
Last-minute
One-way
Cheapest flights from Austin to DecaturExplore the most affordable flight options available from Austin to Decatur. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 10, 2026.
Explore the most affordable flight options available from Austin to Decatur. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 10, 2026.
This United Airlines deal was found by Cheapflights users on 9/8. 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.
Thu 11/1912:49 pm -
1 stop5h 21m
Wed 11/256:57 pm -
1 stop19h 05m
Deal found 9/8![United Airlines logo]()
$469
This United Airlines deal was found by Cheapflights users on 9/8. 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.
Thu 11/1912:49 pm -
1 stop5h 21m
Fri 11/206:57 pm -
1 stop24h 07m
Deal found 9/8![United Airlines logo]()
$472
This United Airlines deal was found by Cheapflights users on 9/7. 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.
Tue 9/229:33 am -
2 stops9h 11m
Sat 9/267:18 pm -
1 stop14h 40m
Deal found 9/7![United Airlines logo]()
$590
This United Airlines deal was found by Cheapflights users on 9/8. 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 9/189:33 am -
2 stops9h 11m
Mon 9/219:12 am -
1 stop24h 46m
Deal found 9/8![United Airlines logo]()
$597
Best flights from Austin to DecaturDiscover carefully curated flight deals from Austin to Decatur that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 10, 2026.
Discover carefully curated flight deals from Austin to Decatur that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 10, 2026.
This United Airlines deal was found by Cheapflights users on 9/8. 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.
Thu 11/1912:49 pm -
1 stop5h 21m
Fri 11/206:57 pm -
1 stop24h 07m
Deal found 9/8![United Airlines logo]()
$472
This United Airlines deal was found by Cheapflights users on 9/8. 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.
Thu 11/1912:49 pm -
1 stop5h 21m
Wed 11/256:57 pm -
2 stops18h 24m
Deal found 9/8![United Airlines logo]()
$479
This United Airlines deal was found by Cheapflights users on 9/8. 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 2/2312:49 pm -
1 stop5h 02m
Sat 2/276:55 pm -
1 stop27h 34m
Deal found 9/8![United Airlines logo]()
$481
This United Airlines deal was found by Cheapflights users on 9/7. 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.
Tue 9/229:33 am -
2 stops9h 11m
Sat 9/267:18 pm -
1 stop14h 40m
Deal found 9/7![United Airlines logo]()
$590
Last-minute flights from Austin to DecaturDiscover last-minute flight deals from Austin to Decatur. Data last updated September 10, 2026 and is based on user searches.
Discover last-minute flight deals from Austin to Decatur. Data last updated September 10, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 9/7. 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.
Wed 9/99:33 am -
2 stops9h 11m
Sat 9/127:20 pm -
1 stop14h 38m
Deal found 9/7![United Airlines logo]()
$655
This United Airlines deal was found by Cheapflights users on 9/5. 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 9/109:33 am -
2 stops9h 11m
Sat 9/197:20 pm -
1 stop17h 00m
Deal found 9/5![United Airlines logo]()
$676
This United Airlines deal was found by Cheapflights users on 9/8. 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 9/189:33 am -
2 stops9h 11m
Mon 9/219:12 am -
1 stop24h 46m
Deal found 9/8![United Airlines logo]()
$597
This United Airlines deal was found by Cheapflights users on 9/7. 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.
Tue 9/229:33 am -
2 stops9h 11m
Sat 9/267:18 pm -
1 stop14h 40m
Deal found 9/7![United Airlines logo]()
$590
This United Airlines deal was found by Cheapflights users on 9/5. 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.
Sun 10/45:25 pm -
1 stop15h 10m
Sun 10/117:18 pm -
1 stop14h 40m
Deal found 9/5![United Airlines logo]()
$688
This United Airlines deal was found by Cheapflights users on 9/7. 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 10/812:43 pm -
1 stop5h 10m
Sun 10/119:12 am -
1 stop7h 12m
Deal found 9/7![United Airlines logo]()
$659
One-way flights from Austin to DecaturSearch for one-way flight options from Austin to Decatur. Find affordable one-way fares based on user searches. Data last updated September 10, 2026.
Search for one-way flight options from Austin to Decatur. Find affordable one-way fares based on user searches. Data last updated September 10, 2026.
This United Airlines deal was found by Cheapflights users on 9/8. 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 10/1712:43 pm -
1 stop6h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/8![United Airlines logo]()
$309
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.
Tue 9/225:32 pm -
1 stop25h 12m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![United Airlines logo]()
$385
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.
Sun 9/205:32 pm -
1 stop14h 33m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![United Airlines logo]()
$422
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.
Mon 9/219:00 am -
3 stops33h 44m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![United Airlines logo]()
$760
Find flight deals from Austin to Decatur
Discover tips and strategies to find the most affordable flight options for your journey from Austin (AUS) 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 10, 2026.
Most accurate provider | Expedia 1 star |
|---|---|
Most trusted provider | Expedia 3 stars |
Round-trip from | $469 (United Airlines) |
One-way from | $309 (United Airlines) |
Cheapflights Fare Finder
Customize your flight search to find flights from Austin 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 10, 2026.
Use the filters below to find and compare flights from Austin to Decatur that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Quickest round-trip
AustinDecatur
AUS Austin Bergstrom - DEC Decatur Arpt
AUSDEC
Austin Bergstrom
Sat 10/17
12:43 pm-6:43 pm
1 stop6h 00m
Decatur Arpt
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$309
AustinDecatur
AUS Austin Bergstrom - DEC Decatur Arpt
AUSDEC
Austin Bergstrom
Tue 9/22
5:32 pm-6:44 pm
1 stop25h 12m
Decatur Arpt
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$385
AustinDecatur
AUS Austin Bergstrom - DEC Decatur Arpt
AUSDEC
Austin Bergstrom
Mon 9/21
6:34 am-6:43 pm
1 stop12h 09m
Decatur Arpt
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$422
AustinDecatur
AUS Austin Bergstrom - DEC Decatur Arpt
AUSDEC
Austin Bergstrom
Sun 9/20
5:32 pm-8:05 am
1 stop14h 33m
Decatur Arpt
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$422
AustinDecatur
AUS Austin Bergstrom - DEC Decatur Arpt
AUSDEC
Austin Bergstrom
Thu 11/19
12:49 pm-6:10 pm
1 stop5h 21m
Decatur Arpt
Fri 11/20
6:57 pm-7:04 pm
1 stop24h 07m
$472
AustinDecatur
AUS Austin Bergstrom - DEC Decatur Arpt
AUSDEC
Austin Bergstrom
Thu 11/19
12:49 pm-6:10 pm
1 stop5h 21m
Decatur Arpt
Wed 11/25
6:57 pm-1:21 pm
2 stops18h 24m
$479
AustinDecatur
AUS Austin Bergstrom - DEC Decatur Arpt
AUSDEC
Austin Bergstrom
Tue 2/23
12:49 pm-5:51 pm
1 stop5h 02m
Decatur Arpt
Sat 2/27
6:55 pm-10:29 pm
1 stop27h 34m
$481
AustinDecatur
AUS Austin Bergstrom - DEC Decatur Arpt
AUSDEC
Austin Bergstrom
Tue 9/22
9:33 am-6:44 pm
2 stops9h 11m
Decatur Arpt
Sat 9/26
7:18 pm-9:58 am
1 stop14h 40m
$590
Sorted by cheapest first
- Most accurate provider: When it comes to deals on Austin-Decatur, Illinois flights, users find the pricing of Expedia to be most consistent on Cheapflights vs. Expedia Users can find the same prices on Austin-Decatur, Illinois flight deals on Cheapflights vs. Expedia <90% of the time. Price accuracy is based on data collected from Austin-Decatur, Illinois flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Austin-Decatur, Illinois flights, Cheapflights users trust Expedia the most. Expedia 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 Austin-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 Austin to Decatur
Have a flexible travel schedule? Discover the best time to fly to Decatur from Austin with our price prediction graph.
AUS-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 Austin 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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