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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 2/26. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — DEC
feb. 13 — feb. 201
vie. 2/13
vie. 2/20
1 adult, Economy
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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 enero 14, 2026.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$158
(United Airlines)

One-way from

$93
(United Airlines)
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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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 enero 14, 2026.

This United Airlines deal was found by Cheapflights users on 1/12. 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.
sáb. 2/144:50 pm
ORD
-
DEC
Nonstop1h 04m
United Airlines
dom. 2/159:50 am
DEC
-
ORD
Nonstop1h 10m
United Airlines
Deal found 1/12$158
This United Airlines deal was found by Cheapflights users on 1/11. 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. 2/264:50 pm
ORD
-
DEC
Nonstop1h 04m
United Airlines
jue. 3/57:15 pm
DEC
-
ORD
Nonstop1h 10m
United Airlines
Deal found 1/11$159
This United Airlines deal was found by Cheapflights users on 1/12. 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.
lun. 1/194:52 pm
ORD
-
DEC
Nonstop1h 09m
United Airlines
lun. 1/267:09 pm
DEC
-
ORD
Nonstop1h 16m
United Airlines
Deal found 1/12$174
This United Airlines deal was found by Cheapflights users on 1/12. 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.
lun. 1/264:52 pm
ORD
-
DEC
Nonstop1h 09m
United Airlines
vie. 1/307:09 pm
DEC
-
ORD
Nonstop1h 16m
United Airlines
Deal found 1/12$191
This United Airlines deal was found by Cheapflights users on 1/12. 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. 1/134:52 pm
ORD
-
DEC
Nonstop1h 09m
United Airlines
lun. 1/197:09 pm
DEC
-
ORD
Nonstop1h 16m
United Airlines
Deal found 1/12$199
This United Airlines deal was found by Cheapflights users on 1/12. 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.
dom. 1/254:52 pm
ORD
-
DEC
Nonstop1h 09m
United Airlines
jue. 1/299:49 am
DEC
-
ORD
Nonstop1h 16m
United Airlines
Deal found 1/12$241
This United Airlines deal was found by Cheapflights users on 1/12. 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. 1/224:52 pm
ORD
-
DEC
Nonstop1h 09m
United Airlines
sáb. 1/247:09 pm
DEC
-
ORD
Nonstop1h 16m
United Airlines
Deal found 1/12$291

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 enero 14, 2026.
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

sáb. 2/14

4:50 pm-5:54 pm

Nonstop1h 04m

Decatur Arpt

dom. 2/15

9:50 am-11:00 am

Nonstop1h 10m

$158

ChicagoDecatur

ORD - DEC

ORDDEC

Chicago O'Hare Intl

sáb. 1/31

4:52 pm-6:01 pm

Nonstop1h 09m

Decatur Arpt

dom. 2/1

7:09 pm-8:25 pm

Nonstop1h 16m

$159

ChicagoDecatur

ORD - DEC

ORDDEC

Chicago O'Hare Intl

sáb. 2/7

4:52 pm-6:01 pm

Nonstop1h 09m

Decatur Arpt

jue. 2/19

9:50 am-11:00 am

Nonstop1h 10m

$159

ChicagoDecatur

ORD - DEC

ORDDEC

Chicago O'Hare Intl

lun. 2/2

4:52 pm-6:01 pm

Nonstop1h 09m

Decatur Arpt

lun. 2/9

7:09 pm-8:25 pm

Nonstop1h 16m

$159

ChicagoDecatur

ORD - DEC

ORDDEC

Chicago O'Hare Intl

jue. 2/26

4:50 pm-5:54 pm

Nonstop1h 04m

Decatur Arpt

dom. 3/1

9:50 am-11:00 am

Nonstop1h 10m

$159

ChicagoDecatur

ORD - DEC

ORDDEC

Chicago O'Hare Intl

jue. 4/2

4:54 pm-6:02 pm

Nonstop1h 08m

Decatur Arpt

lun. 4/20

9:52 am-11:05 am

Nonstop1h 13m

$159

ChicagoDecatur

ORD - DEC

ORDDEC

Chicago O'Hare Intl

lun. 2/9

4:52 pm-6:01 pm

Nonstop1h 09m

Decatur Arpt

lun. 2/16

9:50 am-11:00 am

Nonstop1h 10m

$159

ChicagoDecatur

ORD - DEC

ORDDEC

Chicago O'Hare Intl

jue. 2/26

4:50 pm-5:54 pm

Nonstop1h 04m

Decatur Arpt

jue. 3/5

7:15 pm-8:25 pm

Nonstop1h 10m

$159

ChicagoDecatur

ORD - DEC

ORDDEC

Chicago O'Hare Intl

vie. 2/27

4:50 pm-5:54 pm

Nonstop1h 04m

Decatur Arpt

lun. 3/2

7:15 pm-8:25 pm

Nonstop1h 10m

$159

ChicagoDecatur

ORD - DEC

ORDDEC

Chicago O'Hare Intl

mié. 1/28

7:45 am-9:05 am

Nonstop1h 20m

Decatur Arpt

dom. 2/1

7:09 pm-8:25 pm

Nonstop1h 16m

$159

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/12

Showing 1-10 of 18 results
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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 January.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*1 star
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 eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Chicago-Decatur, Illinois flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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 enero 14, 2026.

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.

Weekly flight availability from Chicago to Decatur, Illinois

Explore weekly flight availability from Chicago to Decatur. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated enero 14, 2026.

The most flights from CHI to DEC are scheduled on a Monday (2 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (1 on average).

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 04m. The distance between Chicago and Decatur, Illinois is about 156 mi. Generally, flights for this route are nonstop.

  • 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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