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Decatur

$219+ 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 8/25. Fares are subject to change and may not be available on all flights or dates of travel.
HOU — DEC
Jun 28 — Jul 51
Sun 6/28
Sun 7/5
1 adult, Economy
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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 May 29, 2026.

This United Airlines deal was found by Cheapflights users on 5/25. 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.
Wed 7/2910:08 pm
IAH
-
DEC
1 stop10h 49m
United Airlines
Tue 8/46:45 pm
DEC
-
IAH
1 stop5h 49m
United Airlines
Deal found 5/25$391
This United Airlines deal was found by Cheapflights users on 5/28. 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 10/175:00 am
IAH
-
DEC
1 stop12h 51m
United Airlines
Wed 10/219:42 am
DEC
-
IAH
1 stop5h 56m
United Airlines
Deal found 5/28$407
This United Airlines deal was found by Cheapflights users on 5/24. 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 7/1111:55 am
IAH
-
DEC
1 stop6h 01m
United Airlines
Wed 7/156:45 pm
DEC
-
IAH
1 stop5h 49m
United Airlines
Deal found 5/24$429
This United Airlines deal was found by Cheapflights users on 5/28. 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 6/1910:08 pm
IAH
-
DEC
1 stop19h 48m
United Airlines
Mon 6/226:45 pm
DEC
-
IAH
1 stop15h 46m
United Airlines
Deal found 5/28$515
This United Airlines deal was found by Cheapflights users on 5/27. 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 6/118:25 pm
IAH
-
DEC
1 stop12h 32m
United Airlines
Mon 6/156:45 pm
DEC
-
IAH
1 stop5h 45m
United Airlines
Deal found 5/27$523
This United Airlines deal was found by Cheapflights users on 5/24. 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 6/1811:55 am
IAH
-
DEC
1 stop6h 01m
United Airlines
Mon 6/226:45 pm
DEC
-
IAH
1 stop5h 45m
United Airlines
Deal found 5/24$525

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 May 29, 2026.

Round-trip from

$391
(United Airlines)

One-way from

$219
(United Airlines)
From Houston to Decatur Arpt
Search Deals
One-way flight from Houston to Decatur Arpt
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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 May 29, 2026.
Use the filters below to find and compare flights from Houston to Decatur that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

HoustonDecatur

IAH - DEC

IAHDEC

Houston George Bush Intcntl

Sat 10/17

9:45 pm-5:51 pm

1 stop20h 06m

Decatur Arpt

Wed 10/21

9:42 am-3:38 pm

1 stop5h 56m

$407

HoustonDecatur

IAH - DEC

IAHDEC

Houston George Bush Intcntl

Sat 7/11

11:55 am-5:56 pm

1 stop6h 01m

Decatur Arpt

Wed 7/15

6:45 pm-12:34 am

1 stop5h 49m

$429

HoustonDecatur

IAH - DEC

IAHDEC

Houston George Bush Intcntl

Thu 6/11

8:25 pm-8:57 am

1 stop12h 32m

Decatur Arpt

Mon 6/15

6:45 pm-12:30 am

1 stop5h 45m

$523
Quickest round-trip

HoustonDecatur

IAH - DEC

IAHDEC

Houston George Bush Intcntl

Thu 6/18

11:55 am-5:56 pm

1 stop6h 01m

Decatur Arpt

Mon 6/22

6:45 pm-12:30 am

1 stop5h 45m

$525

HoustonDecatur

IAH - DEC

IAHDEC

Houston George Bush Intcntl

Wed 7/29

10:08 pm-8:57 am

1 stop10h 49m

Decatur Arpt

Tue 8/4

6:45 pm-6:43 am

2 stops11h 58m

$540
Cheapest one-way

HoustonDecatur

IAH - DEC

IAHDEC

Houston George Bush Intcntl

Mon 7/6

10:08 pm-5:56 pm

1 stop19h 48m

$273

HoustonDecatur

IAH - DEC

IAHDEC

Houston George Bush Intcntl

Fri 8/28

5:00 am-5:59 pm

1 stop12h 59m

$283

HoustonDecatur

IAH - DEC

IAHDEC

Houston George Bush Intcntl

Sun 8/23

8:25 am-5:59 pm

1 stop9h 34m

$302

HoustonDecatur

IAH - DEC

IAHDEC

Houston George Bush Intcntl

Wed 6/24

6:10 am-5:56 pm

1 stop11h 46m

$305
Quickest one-way

HoustonDecatur

IAH - DEC

IAHDEC

Houston George Bush Intcntl

Thu 6/18

11:55 am-5:56 pm

1 stop6h 01m

$335

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/27

Showing 1-10 of 13 resultsSorted by cheapest first
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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
No data available for this route at this time. Please check back soon.

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 20h 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.

See more FAQs

Traveling to a place near Decatur?

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

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See prices for flight routes from nearby airports that may be better suited for you.
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