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Decatur

$93+ Cheap flights from Chicago (CHI) 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 12/5. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — DEC
Nov 21 — Nov 281
Fri 11/21
Fri 11/28
1 adult, Economy
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Find flight deals from Chicago to Decatur

Cheapest flights from Chicago to Decatur
Explore the most affordable flight options available from Chicago to Decatur. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 22, 2025.

This United Airlines deal was found by Cheapflights users on 10/21. 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 11/57:45 amORD - DEC
Nonstop1h 03mUnited Airlines
Sun 11/97:08 pmDEC - ORD
Nonstop1h 11mUnited Airlines
Deal found 10/21$159
This United Airlines deal was found by Cheapflights users on 10/20. 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 11/44:50 pmORD - DEC
Nonstop1h 02mUnited Airlines
Sat 11/87:08 pmDEC - ORD
Nonstop1h 11mUnited Airlines
Deal found 10/20$191
This United Airlines deal was found by Cheapflights users on 10/20. 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 10/237:45 amORD - DEC
Nonstop1h 06mUnited Airlines
Sat 10/259:38 amDEC - ORD
Nonstop1h 15mUnited Airlines
Deal found 10/20$391

Cheap flight deals from Chicago to Decatur

Discover tips and strategies to find the most affordable flight options for your journey from Chicago (CHI) 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 October 22, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$159
(United Airlines)

One-way from

$93
(United Airlines)

Good one-way deal

$138 or less
Provider with most accurate pricing for Chicago (CHI)-Decatur Arpt flight deals.
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Provider most trusted by Cheapflights users for Chicago (CHI)-Decatur Arpt flights.
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From Chicago (CHI) to Decatur Arpt
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One-way flight from Chicago (CHI) to Decatur Arpt
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Price to beat on a one-way flight from Chicago (CHI) to Decatur Arpt.
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Chicago 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 October 22, 2025.
Use the filters below to find and compare flights from Chicago to Decatur that are best for you.

Fly from

Chicago

Fly to

Decatur

Route

Depart

Return

Price

ChicagoDecatur

ORD - DEC

ORDDEC

Chicago O'Hare Intl

Wed 11/26

7:45 am-8:48 am

Nonstop1h 03m

Decatur Arpt

Sun 11/30

7:08 pm-8:19 pm

Nonstop1h 11m

$159

ChicagoDecatur

ORD - DEC

ORDDEC

Chicago O'Hare Intl

Sat 11/8

4:50 pm-5:52 pm

Nonstop1h 02m

Decatur Arpt

Sun 11/9

9:44 am-10:55 am

Nonstop1h 11m

$159

ChicagoDecatur

ORD - DEC

ORDDEC

Chicago O'Hare Intl

Wed 11/5

7:45 am-8:48 am

Nonstop1h 03m

Decatur Arpt

Sun 11/9

7:08 pm-8:19 pm

Nonstop1h 11m

$159

ChicagoDecatur

ORD - DEC

ORDDEC

Chicago O'Hare Intl

Fri 12/19

7:45 am-9:05 am

Nonstop1h 20m

Decatur Arpt

Mon 12/22

7:09 pm-8:25 pm

Nonstop1h 16m

$159

ChicagoDecatur

ORD - DEC

ORDDEC

Chicago O'Hare Intl

Tue 11/4

4:50 pm-5:52 pm

Nonstop1h 02m

Decatur Arpt

Sat 11/8

7:08 pm-8:19 pm

Nonstop1h 11m

$191

ChicagoDecatur

ORD - DEC

ORDDEC

Chicago O'Hare Intl

Sun 11/9

4:50 pm-5:52 pm

Nonstop1h 02m

Decatur Arpt

Thu 11/13

9:44 am-10:55 am

Nonstop1h 11m

$191

ChicagoDecatur

ORD - DEC

ORDDEC

Chicago O'Hare Intl

Fri 12/5

7:45 am-8:48 am

Nonstop1h 03m

$93

ChicagoDecatur

ORD - DEC

ORDDEC

Chicago O'Hare Intl

Fri 10/31

4:50 pm-5:52 pm

Nonstop1h 02m

$143

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/21

Compare providers for flights from Chicago to Decatur

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Chicago to Decatur in October.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Chicago-Decatur, Illinois flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Chicago-Decatur, Illinois flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Chicago-Decatur, Illinois flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Chicago-Decatur, Illinois flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Chicago-Decatur, Illinois flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Chicago to Decatur

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

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

Find hourly flight availability from Chicago to Decatur. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 22, 2025.

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

Related info for your journey

Find useful and relevant information for your journey from Chicago 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 Chicago?

    Most people fly into Decatur Arpt (DEC) if they book a flight to Decatur from Chicago. On average, Decatur Arpt has 1 inbound flight from Chicago 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 Chicago to Decatur, Illinois?

    Departing from Chicago to Decatur, Illinois will take you 1h 03m. The distance between Chicago and Decatur, Illinois is about 156 mi. Generally, flights for this route are nonstop.

  • What are the cheapest flights from Chicago to Decatur, Illinois?

    Looking for the cheapest flight from Chicago to Decatur, Illinois? While on average our users pay $138, our data indicates the cheapest price to be $138. The most popular route (Chicago O'Hare Intl - Decatur Arpt), is priced around $159.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Chicago 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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