How long is the flight from Chicago to Decatur, Illinois?

Departing from Chicago to Decatur, Illinois will take you 1h 13m. The distance between Chicago and Decatur, Illinois is about 156 mi. Generally, flights for this route are nonstop.

In terms of precipitation, rainfall in Decatur, Illinois ranges from 1.7 - 4.4 inches per month. June is typically the wettest month, when rainfall can reach 4.4 in. January is typically the driest time to visit Decatur, Illinois when rainfall is around 1.7 in.

If weather is an important factor for your trip to Decatur, Illinois, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 75.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 26.6 F).

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.

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 0 inbound flights from Chicago per day from 0 airlines. Decatur Arpt is conveniently located just 4.7 mi from Decatur’s city center.

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.

$93+ Cheap Flights from Chicago to Decatur, IL

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Cheap flight deals from Chicago to Decatur

Cheapest

Best

Last-minute

One-way

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 September 24, 2026.

Sat 10/105:30 pm -

Nonstop1h 13m

Sat 10/177:18 pm -

Nonstop1h 17m

Deal found 9/23

$149

Thu 10/17:25 am -

Nonstop1h 10m

Mon 10/57:18 pm -

Nonstop1h 17m

Deal found 9/20

$174

Tue 10/65:30 pm -

Nonstop1h 13m

Sat 10/107:18 pm -

Nonstop1h 17m

Deal found 9/22

$191

Thu 9/245:30 pm -

Nonstop1h 13m

Sun 9/277:18 pm -

Nonstop1h 17m

Deal found 9/23

$199

Mon 10/55:30 pm -

Nonstop1h 13m

Fri 10/99:12 am -

Nonstop1h 17m

Deal found 9/23

$241

Mon 9/215:29 pm -

Nonstop1h 14m

Tue 9/227:20 pm -

Nonstop1h 17m

Deal found 9/21

$391

Last-minute flights from Chicago to Decatur
Discover last-minute flight deals from Chicago to Decatur. Data last updated September 24, 2026 and is based on user searches.

Thu 9/245:30 pm -

Nonstop1h 13m

Sun 9/277:18 pm -

Nonstop1h 17m

Deal found 9/23

$199

Thu 10/17:25 am -

Nonstop1h 10m

Mon 10/57:18 pm -

Nonstop1h 17m

Deal found 9/20

$174

Mon 10/55:30 pm -

Nonstop1h 13m

Fri 10/99:12 am -

Nonstop1h 17m

Deal found 9/23

$241

Tue 10/65:30 pm -

Nonstop1h 13m

Sat 10/107:18 pm -

Nonstop1h 17m

Deal found 9/22

$191

Sat 10/105:30 pm -

Nonstop1h 13m

Sat 10/177:18 pm -

Nonstop1h 17m

Deal found 9/23

$149

Find flight deals from Chicago to Decatur

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$149 (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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Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

ChicagoDecatur

ORD Chicago O'Hare Intl - DEC Decatur Arpt

ORDDEC

Chicago O'Hare Intl

Sat 12/26

7:25 am-8:43 am

Nonstop1h 18m

Decatur Arpt

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$93

ChicagoDecatur

ORD Chicago O'Hare Intl - DEC Decatur Arpt

ORDDEC

Chicago O'Hare Intl

Fri 12/25

4:40 pm-5:56 pm

Nonstop1h 16m

Decatur Arpt

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$93

Quickest round-trip

ChicagoDecatur

ORD Chicago O'Hare Intl - DEC Decatur Arpt

ORDDEC

Chicago O'Hare Intl

Mon 10/19

7:25 am-8:35 am

Nonstop1h 10m

Decatur Arpt

Wed 12/31

12:00 am-12:00 am

Nonstop0h 00m

$93

ChicagoDecatur

ORD Chicago O'Hare Intl - DEC Decatur Arpt

ORDDEC

Chicago O'Hare Intl

Sat 10/10

5:30 pm-6:43 pm

Nonstop1h 13m

Decatur Arpt

Sat 10/17

7:18 pm-8:35 pm

Nonstop1h 17m

$149

ChicagoDecatur

ORD Chicago O'Hare Intl - DEC Decatur Arpt

ORDDEC

Chicago O'Hare Intl

Sat 10/31

4:45 pm-5:55 pm

Nonstop1h 10m

Decatur Arpt

Mon 11/2

9:10 am-10:19 am

Nonstop1h 09m

$159

ChicagoDecatur

ORD Chicago O'Hare Intl - DEC Decatur Arpt

ORDDEC

Chicago O'Hare Intl

Sat 10/24

5:30 pm-6:43 pm

Nonstop1h 13m

Decatur Arpt

Sun 10/25

6:57 pm-8:25 pm

Nonstop1h 28m

$159

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/21

Sorted by cheapest first

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.

CHI-DEC

ORD-DEC

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

CHI-DEC

ORD-DEC

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

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

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 0 inbound flights 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 13m. 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.

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$93+ Cheap flights from Chicago (CHI) to Decatur, IL (DEC)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/26. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Chicago to Decatur with Cheapflights

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Cheap flight deals from Chicago to Decatur

Cheapest flights from Chicago to DecaturExplore 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 September 24, 2026.

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 September 24, 2026.

Best flights from Chicago to DecaturDiscover carefully curated flight deals from Chicago to Decatur that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 24, 2026.

Discover carefully curated flight deals from Chicago to Decatur that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 24, 2026.

Last-minute flights from Chicago to DecaturDiscover last-minute flight deals from Chicago to Decatur. Data last updated September 24, 2026 and is based on user searches.

Discover last-minute flight deals from Chicago to Decatur. Data last updated September 24, 2026 and is based on user searches.

One-way flights from Chicago to DecaturSearch for one-way flight options from Chicago to Decatur. Find affordable one-way fares based on user searches. Data last updated September 24, 2026.

Search for one-way flight options from Chicago to Decatur. Find affordable one-way fares based on user searches. Data last updated September 24, 2026.

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Use the filters below to find and compare flights from Chicago to Decatur that are best for you.

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.

Cheapflights Insights

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 September 24, 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.

Related info for your journey

What airport do you fly into for flights to Decatur from Chicago?

How long is the flight from Chicago to Decatur, Illinois?

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

How can I find direct flights from Chicago to Decatur?

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

Traveling to a place near Decatur?

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Other flights to Decatur

Explore flights to Decatur departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on September 24, 2026.

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Chicago and Decatur flights

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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 September 24, 2026.

Best flights from Chicago to Decatur
Discover carefully curated flight deals from Chicago to Decatur that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 24, 2026.

Last-minute flights from Chicago to Decatur
Discover last-minute flight deals from Chicago to Decatur. Data last updated September 24, 2026 and is based on user searches.

One-way flights from Chicago to Decatur
Search for one-way flight options from Chicago to Decatur. Find affordable one-way fares based on user searches. Data last updated September 24, 2026.