What is the cheapest day to fly from Austin to Decatur, Illinois?

Travelers seeking maximum savings on their Austin to Decatur, Illinois flight should consider departing on Sunday mornings when fares are most often at their lowest. Sunday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

In terms of precipitation, rainfall in Decatur, Illinois ranges from 1.7 - 4.4 inches per month. June is typically the wettest month, when rainfall can reach 4.4 in. January is typically the driest time to visit Decatur, Illinois when rainfall is around 1.7 in.

If weather is an important factor for your trip to Decatur, Illinois, 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 75.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 26.6 F).

What is the cheapest time of day to fly from AUS to DEC?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Austin to Decatur, Illinois as you normally would.

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.

$296+ Flights from Austin to Decatur, IL

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

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

Round-trip from	$350 (United Airlines)
One-way from	$296 (United Airlines)

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 julio 30, 2025.

vie. 9/2612:48 pmAUS - DEC

1 stop5h 16mUnited Airlines

dom. 9/286:55 pmDEC - AUS

1 stop16h 47mUnited Airlines

Deal found 7/30

$350

Best flights from Austin to Decatur
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 julio 30, 2025.

vie. 9/2612:48 pmAUS - DEC

1 stop5h 16mUnited Airlines

dom. 9/286:55 pmDEC - AUS

1 stop16h 47mUnited Airlines

Deal found 7/30

$350

Last-minute flights from Austin to Decatur
Discover last-minute flight deals from Austin to Decatur. Data last updated julio 30, 2025 and is based on user searches.

jue. 7/3112:50 pmAUS - DEC

1 stop5h 13mUnited Airlines

dom. 8/39:45 amDEC - AUS

1 stop6h 45mUnited Airlines

Deal found 7/29

$375

One-way flights from Austin to Decatur
Search for one-way flight options from Austin to Decatur. Find affordable one-way fares based on user searches. Data last updated julio 30, 2025.

jue. 9/187:45 pmAUS - DEC

2 stops22h 14mUnited Airlines

Deal found 7/29

$296

Fly from

Fly to

Route

Depart

Return

Price

AustinDecatur

AUS - DEC

AUSDEC

Austin Bergstrom

vie. 9/26

12:48 pm-6:04 pm

1 stop5h 16m

Decatur Arpt

dom. 9/28

6:55 pm-11:42 am

1 stop16h 47m

$350

AustinDecatur

AUS - DEC

AUSDEC

Austin Bergstrom

jue. 9/18

7:45 pm-5:59 pm

2 stops22h 14m

$296

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/29

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.

Reviews of airlines servicing Decatur

Read reviews from past customers who have flown United Airlines from Austin to Decatur. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

United Airlines

7.4

Good

8,896 reviews

Reviews

1 / 20

2.0

Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!

United Airlines

7.4

Good

8,896 reviews

United Airlines

7.4

Good

8,896 reviews

Reviews

1 / 20

2.0

Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!

Related info for your journey

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.

Mattoon

Effingham

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for Austin to Decatur

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

Dallas/Fort Worth to St. Louis flights

Austin to Midway flights

George Bush Intcntl to Midway flights

Hobby to St. Louis flights

George Bush Intcntl to St. Louis flights

San Antonio to Midway flights

El Paso to O'Hare Intl flights

Love Field to St. Louis flights

Austin to St. Louis flights

Dallas/Fort Worth to Peoria flights

San Antonio to St. Louis flights

El Paso to Midway flights

Dallas/Fort Worth to Bloomington flights

Corpus Christi to O'Hare Intl flights

Dallas/Fort Worth to Moline flights

Harlingen to O'Hare Intl flights

McAllen to O'Hare Intl flights

Lubbock to O'Hare Intl flights

El Paso to St. Louis flights

McAllen to Midway flights

Hobby to Moline flights

George Bush Intcntl to Moline flights

Austin to Peoria flights

Austin to Moline flights

Dallas/Fort Worth to Evansville flights

Midland to O'Hare Intl flights

Hobby to Peoria flights

Dallas/Fort Worth to Champaign flights

Austin to Rockford flights

George Bush Intcntl to Peoria flights

Laredo to O'Hare Intl flights

Amarillo to O'Hare Intl flights

Austin to Champaign flights

Dallas/Fort Worth to Springfield flights

San Antonio to Peoria flights

Love Field to Moline flights

Brownsville to O'Hare Intl flights

Corpus Christi to St. Louis flights

Love Field to Bloomington flights

Complete your trip

Greater Peoria Airport car rentals

Bloomington-Normal Airport car rentals

Springfield Capital Airport car rentals

Champaign University-Willard Airport car rentals

Belleville Airport car rentals

Chicago car rentals

Rockford car rentals

Peoria car rentals

Bloomington car rentals

Champaign car rentals

Marion car rentals

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.

$296+ 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 9/18. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Austin to Decatur with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Austin to Decatur

Round-trip from

One-way from

Find flight deals from Austin to Decatur

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 julio 30, 2025.

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 julio 30, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Austin to Decatur that are best for you.

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.

Reviews of airlines servicing Decatur

Read reviews from past customers who have flown United Airlines from Austin to Decatur. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

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.

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

How can I find direct flights from Austin to Decatur?

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

Traveling to a place near Decatur?

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.

100% Free

Book with Flexibility

Travel Smart

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 julio 30, 2025.