HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Decatur

$227+ 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 12/15. Fares are subject to change and may not be available on all flights or dates of travel.
HOU — DEC
dic. 13 — dic. 201
sáb. 12/13
sáb. 12/20
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

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 noviembre 13, 2025.

Round-trip from

$354
(United Airlines)

One-way from

$227
(United Airlines)
From Houston to Decatur Arpt
Search Deals
One-way flight from Houston to Decatur Arpt
Search Deals

Find 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 noviembre 13, 2025.

This United Airlines deal was found by Cheapflights users on 11/12. 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.
mié. 12/109:43 pmIAH - DEC
1 stop11h 05mUnited Airlines
dom. 1/47:09 pmDEC - IAH
1 stop5h 21mUnited Airlines
Deal found 11/12$355
This United Airlines deal was found by Cheapflights users on 11/13. 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.
mar. 11/2512:10 pmIAH - DEC
1 stop5h 42mUnited Airlines
sáb. 11/297:08 pmDEC - IAH
1 stop4h 51mUnited Airlines
Deal found 11/13$374
This United Airlines deal was found by Cheapflights users on 11/12. 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.
jue. 12/188:15 amIAH - DEC
1 stop9h 44mUnited Airlines
dom. 1/47:09 pmDEC - IAH
1 stop5h 21mUnited Airlines
Deal found 11/12$395
This United Airlines deal was found by Cheapflights users on 11/12. 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.
mar. 12/168:30 amIAH - DEC
1 stop24h 18mUnited Airlines
mar. 1/67:09 pmDEC - IAH
1 stop16h 56mUnited Airlines
Deal found 11/12$396
This United Airlines deal was found by Cheapflights users on 11/10. 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.
vie. 11/286:30 amIAH - DEC
1 stop11h 22mUnited Airlines
jue. 12/47:08 pmDEC - IAH
1 stop4h 51mUnited Airlines
Deal found 11/10$425

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 noviembre 13, 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

jue. 1/1

9:35 pm-9:05 am

1 stop11h 30m

Decatur Arpt

mié. 1/7

9:49 am-3:45 pm

1 stop5h 56m

$354

HoustonDecatur

IAH - DEC

IAHDEC

Houston George Bush Intcntl

mié. 12/10

6:35 pm-8:48 am

1 stop14h 13m

Decatur Arpt

dom. 1/4

7:09 pm-12:30 am

1 stop5h 21m

$355

HoustonDecatur

IAH - DEC

IAHDEC

Houston George Bush Intcntl

mié. 2/25

11:55 am-5:56 pm

1 stop6h 01m

Decatur Arpt

sáb. 2/28

7:05 pm-8:46 am

1 stop13h 41m

$359

HoustonDecatur

IAH - DEC

IAHDEC

Houston George Bush Intcntl

jue. 12/18

6:30 am-5:59 pm

1 stop11h 29m

Decatur Arpt

dom. 1/4

7:09 pm-12:30 am

1 stop5h 21m

$395

HoustonDecatur

IAH - DEC

IAHDEC

Houston George Bush Intcntl

mar. 12/16

9:43 pm-8:48 am

1 stop11h 05m

Decatur Arpt

mar. 1/6

7:09 pm-7:57 pm

1 stop24h 48m

$396

HoustonDecatur

IAH - DEC

IAHDEC

Houston George Bush Intcntl

vie. 11/28

6:30 am-5:52 pm

1 stop11h 22m

Decatur Arpt

jue. 12/4

7:08 pm-11:59 pm

1 stop4h 51m

$425

HoustonDecatur

IAH - DEC

IAHDEC

Houston George Bush Intcntl

lun. 12/15

5:00 pm-5:52 pm

1 stop24h 52m

$227

HoustonDecatur

IAH - DEC

IAHDEC

Houston George Bush Intcntl

vie. 12/26

3:55 pm-9:05 am

1 stop17h 10m

$268

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/11

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 11h 30m. 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
Hobby to Midway flights
Hobby to O'Hare Intl flights
Love Field to O'Hare Intl flights
George Bush Intcntl to O'Hare Intl flights
Austin to O'Hare Intl flights
Love Field to Midway flights
George Bush Intcntl to Midway flights
Dallas/Fort Worth to St. Louis flights
San Antonio to O'Hare Intl flights
Austin to Midway flights
Hobby to St. Louis flights
San Antonio to Midway flights
Love Field to St. Louis flights
George Bush Intcntl to St. Louis flights
Austin to St. Louis flights
El Paso to O'Hare Intl flights
Dallas/Fort Worth to Moline flights
San Antonio to St. Louis flights
Dallas/Fort Worth to Bloomington flights
McAllen to O'Hare Intl flights
El Paso to Midway flights
El Paso to St. Louis flights
Lubbock to O'Hare Intl flights
Dallas/Fort Worth to Peoria flights
Corpus Christi to O'Hare Intl flights
San Antonio to Moline flights
Hobby to Evansville flights
Dallas/Fort Worth to Decatur flights
Harlingen to O'Hare Intl flights
Austin to Moline flights
Dallas/Fort Worth to Evansville flights
Hobby to Peoria flights
George Bush Intcntl to Evansville flights
George Bush Intcntl to Peoria flights
Hobby to Bloomington flights
Hobby to Moline flights
George Bush Intcntl to Moline flights
George Bush Intcntl to Decatur flights
Dallas/Fort Worth to Champaign flights
Austin to Rockford flights
Love Field to Bloomington flights
Laredo to O'Hare Intl flights
Love Field to Moline flights
McAllen to Midway flights
George Bush Intcntl to Bloomington flights
Midland to O'Hare Intl flights
Austin to Peoria 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.