HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Decatur

$207+ Cheap flights from Houston to Decatur, IL (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 1/18. Fares are subject to change and may not be available on all flights or dates of travel.
HOU — DEC
Jan 27 — Feb 31
Tue 1/27
Tue 2/3
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Houston 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 Houston to Decatur

Cheapest flights from Houston to Decatur
Explore the most affordable flight options available from Houston to Decatur. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 28, 2025.

This United Airlines deal was found by Cheapflights users on 12/26. 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 12/3011:55 amIAH - DEC
1 stop6h 04mUnited Airlines
Sat 1/39:44 amDEC - IAH
1 stop7h 49mUnited Airlines
Deal found 12/26$349
This United Airlines deal was found by Cheapflights users on 12/25. 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 12/2611:55 amIAH - DEC
1 stop6h 04mUnited Airlines
Mon 12/299:44 amDEC - IAH
1 stop6h 06mUnited Airlines
Deal found 12/25$505
This United Airlines deal was found by Cheapflights users on 12/25. 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 12/275:05 pmIAH - DEC
2 stops16h 00mUnited Airlines
Tue 12/309:44 amDEC - IAH
1 stop6h 06mUnited Airlines
Deal found 12/25$764

Find flight deals from Houston to Decatur

Discover tips and strategies to find the most affordable flight options for your journey from Houston (HO1) 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 December 28, 2025.

Round-trip from

$264
(United Airlines)

One-way from

$207
(United Airlines)
From Houston to Decatur Arpt
Search Deals
One-way flight from Houston to Decatur Arpt
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Houston 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 December 28, 2025.
Use the filters below to find and compare flights from Houston to Decatur that are best for you.

Fly from

Houston

Fly to

Decatur

Route

Depart

Return

Price

HoustonDecatur

IAH - DEC

IAHDEC

Houston George Bush Intcntl

Sat 2/7

11:55 am-6:01 pm

1 stop6h 06m

Decatur Arpt

Wed 2/18

7:15 pm-12:09 am

1 stop4h 54m

$264

HoustonDecatur

IAH - DEC

IAHDEC

Houston George Bush Intcntl

Mon 1/26

11:55 am-6:01 pm

1 stop6h 06m

Decatur Arpt

Mon 2/2

7:09 pm-12:12 am

1 stop5h 03m

$334

HoustonDecatur

IAH - DEC

IAHDEC

Houston George Bush Intcntl

Fri 1/9

10:06 am-6:01 pm

1 stop7h 55m

Decatur Arpt

Sun 1/11

9:49 am-5:20 pm

1 stop7h 31m

$344

HoustonDecatur

IAH - DEC

IAHDEC

Houston George Bush Intcntl

Sat 4/18

10:07 am-6:02 pm

1 stop7h 55m

Decatur Arpt

Tue 4/21

7:20 pm-7:09 pm

1 stop23h 49m

$371

HoustonDecatur

IAH - DEC

IAHDEC

Houston George Bush Intcntl

Sat 1/10

11:55 am-6:01 pm

1 stop6h 06m

Decatur Arpt

Wed 1/14

9:49 am-7:01 pm

1 stop9h 12m

$409

HoustonDecatur

IAH - DEC

IAHDEC

Houston George Bush Intcntl

Fri 5/1

6:15 am-5:51 pm

1 stop11h 36m

Decatur Arpt

Sat 5/2

6:55 pm-12:30 am

1 stop5h 35m

$431

HoustonDecatur

IAH - DEC

IAHDEC

Houston George Bush Intcntl

Sun 5/24

9:40 pm-8:46 am

1 stop11h 06m

Decatur Arpt

Mon 6/1

6:55 pm-11:49 pm

1 stop4h 54m

$434

HoustonDecatur

IAH - DEC

IAHDEC

Houston George Bush Intcntl

Sun 1/18

5:00 am-6:01 pm

1 stop13h 01m

$207

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/27

Best time to book a flight from Houston to Decatur

Have a flexible travel schedule? Discover the best time to fly to Decatur from Houston 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 Houston to Decatur

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

Currently, April is the cheapest month in which you can book a flight from Houston to Decatur, Illinois (average of $198). Flying from Houston to Decatur, Illinois in March is currently the most expensive (average of $355). 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 Houston to Decatur. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Decatur from Houston?

    Most people fly into Decatur Arpt (DEC) if they book a flight to Decatur from Houston. On average, Decatur Arpt has 0 inbound flights from Houston per day from 0 airlines. Decatur Arpt is conveniently located just 4.7 mi from Decatur’s city center.

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

    There are many flights that can get you from Houston to Decatur, Illinois in 6h 06m. Fly via United Airlines to get the fastest option. The distance from Houston to Decatur, Illinois is about 772 mi.

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

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

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

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

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

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

    Currently, April is the cheapest month in which you can book a flight from Houston to Decatur, Illinois (average of $198). Flying from Houston to Decatur, Illinois in March is currently the most expensive (average of $355). 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 Houston 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
Love Field to O'Hare Intl flights
George Bush Intcntl to O'Hare Intl flights
Hobby to Midway flights
Hobby to O'Hare Intl flights
Love Field to Midway flights
George Bush Intcntl to Midway flights
San Antonio to O'Hare Intl flights
Austin to Midway flights
Dallas/Fort Worth to St. Louis flights
San Antonio to Midway flights
Hobby to St. Louis flights
George Bush Intcntl to St. Louis flights
Love Field to St. Louis flights
El Paso to O'Hare Intl flights
Austin to St. Louis flights
Corpus Christi to O'Hare Intl flights
El Paso to Midway flights
Dallas/Fort Worth to Moline flights
McAllen to O'Hare Intl flights
Dallas/Fort Worth to Decatur flights
Dallas/Fort Worth to Peoria flights
Hobby to Peoria flights
George Bush Intcntl to Peoria flights
Dallas/Fort Worth to Bloomington flights
Dallas/Fort Worth to Evansville flights
Hobby to Moline flights
Laredo to O'Hare Intl flights
Harlingen to O'Hare Intl flights
San Antonio to Peoria flights
McAllen to Midway flights
George Bush Intcntl to Moline flights
San Antonio to Moline flights
Love Field to Evansville flights
San Antonio to Bloomington flights
San Antonio to St. Louis flights
Austin to Moline flights
Lubbock to O'Hare Intl flights
Amarillo to O'Hare Intl flights
George Bush Intcntl to Decatur flights
Hobby to Bloomington flights
El Paso to St. Louis flights
Austin to Peoria flights
Love Field to Moline flights
George Bush Intcntl to Bloomington flights
Austin to Bloomington 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.