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Decatur

$277+ 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
Dec 30 — Jan 61
Tue 12/30
Tue 1/6
1 adult, Economy
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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 November 30, 2025.

Round-trip from

$329
(United Airlines)

One-way from

$277
(United Airlines)
From Houston to Decatur Arpt
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One-way flight from Houston to Decatur Arpt
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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 November 30, 2025.

This United Airlines deal was found by Cheapflights users on 11/30. 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 12/1811:55 amIAH - DEC
1 stop6h 04mUnited Airlines
Sun 1/47:09 pmDEC - IAH
1 stop5h 21mUnited Airlines
Deal found 11/30$329
This United Airlines deal was found by Cheapflights users on 11/30. 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 12/1011:57 amIAH - DEC
1 stop5h 55mUnited Airlines
Sun 1/47:09 pmDEC - IAH
1 stop5h 21mUnited Airlines
Deal found 11/30$359
This United Airlines deal was found by Cheapflights users on 11/29. 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.
Mon 12/1511:57 amIAH - DEC
1 stop5h 55mUnited Airlines
Fri 12/197:09 pmDEC - IAH
1 stop15h 31mUnited Airlines
Deal found 11/29$593

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 November 30, 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

Thu 12/18

11:55 am-5:59 pm

1 stop6h 04m

Decatur Arpt

Sun 1/4

7:09 pm-12:30 am

1 stop5h 21m

$329

HoustonDecatur

IAH - DEC

IAHDEC

Houston George Bush Intcntl

Sat 1/24

5:00 am-9:05 am

1 stop28h 05m

Decatur Arpt

Wed 1/28

9:49 am-3:45 pm

1 stop5h 56m

$355

HoustonDecatur

IAH - DEC

IAHDEC

Houston George Bush Intcntl

Wed 12/10

11:57 am-5:52 pm

1 stop5h 55m

Decatur Arpt

Sun 1/4

7:09 pm-12:30 am

1 stop5h 21m

$359

HoustonDecatur

IAH - DEC

IAHDEC

Houston George Bush Intcntl

Mon 12/15

9:43 pm-5:52 pm

1 stop20h 09m

$277

HoustonDecatur

IAH - DEC

IAHDEC

Houston George Bush Intcntl

Tue 12/23

11:55 am-5:59 pm

1 stop6h 04m

$327

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/29

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 04m. 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

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