HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Decatur

$247+ Cheap flights from Austin to Decatur, IL (AUS - DEC)

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 2/5. Fares are subject to change and may not be available on all flights or dates of travel.
AUS — DEC
Feb 14 — Feb 211
Sat 2/14
Sat 2/21
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

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

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 January 15, 2026.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$430
(United Airlines)

One-way from

$247
(United Airlines)
Provider with most accurate pricing for Austin Bergstrom-Decatur Arpt flight deals.
Search Deals
Provider most trusted by Cheapflights users for Austin Bergstrom-Decatur Arpt flights.
Search Deals
From Austin Bergstrom to Decatur Arpt
Search Deals
One-way flight from Austin Bergstrom to Decatur Arpt
Search Deals

Find flight deals from Austin to Decatur

Cheapest flights from Austin to Decatur
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 January 15, 2026.

This United Airlines deal was found by Cheapflights users on 1/13. 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.
Wed 1/287:05 am
AUS
-
DEC
2 stops10h 56m
United Airlines
Sun 2/19:49 am
DEC
-
AUS
2 stops9h 41m
United Airlines
Deal found 1/13$360
This United Airlines deal was found by Cheapflights users on 1/14. 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 1/306:30 am
AUS
-
DEC
1 stop11h 31m
United Airlines
Tue 2/39:49 am
DEC
-
AUS
1 stop5h 57m
United Airlines
Deal found 1/14$430
This United Airlines deal was found by Cheapflights users on 1/12. 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 10/2710:34 am
AUS
-
DEC
1 stop7h 17m
United Airlines
Sat 10/316:55 pm
DEC
-
AUS
1 stop18h 05m
United Airlines
Deal found 1/12$457

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 2,558,603 searches. Data last updated January 15, 2026.
Use the filters below to find and compare flights from Austin to Decatur that are best for you.

Fly from

Austin

Fly to

Decatur

Route

Depart

Return

Price

AustinDecatur

AUS - DEC

AUSDEC

Austin Bergstrom

Wed 1/28

7:05 am-6:01 pm

2 stops10h 56m

Decatur Arpt

Sun 2/1

9:49 am-7:30 pm

2 stops9h 41m

$360

AustinDecatur

AUS - DEC

AUSDEC

Austin Bergstrom

Fri 1/30

6:30 am-6:01 pm

1 stop11h 31m

Decatur Arpt

Tue 2/3

9:49 am-3:46 pm

1 stop5h 57m

$430

AustinDecatur

AUS - DEC

AUSDEC

Austin Bergstrom

Thu 2/5

7:05 am-6:01 pm

2 stops10h 56m

$289

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/14

Compare providers for flights from Austin 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 Austin to Decatur in January.
ProviderPrice AccuracyTrust Score*
eDreamsPrice Accuracy3 starsTrust Score*3 stars
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star

*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 Austin-Decatur, Illinois flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Austin-Decatur, Illinois flight deals on Cheapflights vs. eDreams >95% 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 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 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.
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 Austin to Decatur

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

Currently, August is the cheapest month in which you can book a flight from Austin to Decatur, Illinois (average of $166). Flying from Austin to Decatur, Illinois in February is currently the most expensive (average of $333). 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.

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.

  • How long is the flight from Austin to Decatur, Illinois?

    Airlines like United Airlines fly from Austin to Decatur, Illinois in about 10h 56m. The time it takes to get you to your destination can typically vary by up to . The distance from Austin to Decatur, Illinois is about 830 mi.

  • Can I find deals for flights from Austin to Decatur that include hotel bookings?

    Yes. In addition to deals on Austin to Decatur flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Austin to Decatur?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Austin to Decatur.

  • Can I find deals for business class flights from Austin to Decatur?

    Yes. Cheapflights offers flight deals from Austin to Decatur 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 Austin to Decatur, Illinois?

    Currently, August is the cheapest month in which you can book a flight from Austin to Decatur, Illinois (average of $166). Flying from Austin to Decatur, Illinois in February is currently the most expensive (average of $333). 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.

See more FAQs

Traveling to a place near Decatur?

Book flights to Decatur if you plan to visit one of these locations
Mattoon
Effingham

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 Austin to Decatur

See prices for flight routes from nearby airports that may be better suited for you.
Dallas/Fort Worth to O'Hare Intl flights
Dallas/Fort Worth to Midway flights
Austin to O'Hare Intl flights
Hobby to Midway flights
Love Field to O'Hare Intl flights
Hobby to O'Hare Intl flights
George Bush Intcntl to O'Hare Intl flights
Love Field to Midway flights
San Antonio to O'Hare Intl flights
George Bush Intcntl to Midway flights
Dallas/Fort Worth to St. Louis flights
Austin to Midway flights
Hobby to St. Louis flights
San Antonio to Midway flights
George Bush Intcntl to St. Louis flights
Austin to St. Louis flights
El Paso to O'Hare Intl flights
Love Field to St. Louis flights
Austin to Moline flights
Dallas/Fort Worth to Peoria flights
El Paso to Midway flights
Corpus Christi to O'Hare Intl flights
San Antonio to St. Louis flights
Hobby to Evansville flights
George Bush Intcntl to Evansville flights
McAllen to O'Hare Intl flights
Dallas/Fort Worth to Bloomington flights
Dallas/Fort Worth to Moline flights
El Paso to St. Louis flights
Hobby to Moline flights
Laredo to O'Hare Intl flights
Austin to Rockford flights
Dallas/Fort Worth to Decatur flights
George Bush Intcntl to Moline flights
McAllen to Midway flights
Amarillo to O'Hare Intl flights
Harlingen to O'Hare Intl flights
San Antonio to Peoria flights
Hobby to Peoria flights
George Bush Intcntl to Peoria flights
Lubbock to O'Hare Intl flights
Austin to Peoria flights
Love Field to Bloomington flights
George Bush Intcntl to Decatur flights
Dallas/Fort Worth to Evansville flights
San Antonio to Moline flights
Austin to Bloomington flights
Love Field to Evansville flights
Midland to O'Hare Intl flights

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.