How many flights depart from Illinois to Decatur, Illinois on average per day?

As of December 2025, 1 flights take off from Illinois and land in Decatur, Illinois each day. The most common flight departure time for this route is 7:00AM, with 53% of daily flights taking off at noon.

What is the cheapest airline that flies from Illinois to Decatur Arpt?

United Airlines is the most popular carrier operating from Illinois to Decatur Arpt

How many flights depart from Illinois to Decatur, Illinois on average per week?

As of December 2025, there are 13 flights per week flying from Illinois to Decatur, Illinois. The most common day of the week flights depart is Mon, with 15% of flights taking off on this day.

How long does it take to fly to Decatur, Illinois?

The flight from Illinois to Decatur, Illinois depends on which airports you’re departing and arriving from and whether or not you have a layover. If you fly from Chicago (a popular airport in Illinois) to Peoria, Illinois (the most popular airport in Decatur, Illinois), then the flight time is 12h 51m on average. If you fly from Moline (another popular airport in Illinois) to Peoria, Illinois, then the average flight time is 20h 53m.

When did momondo last update prices for flights from Illinois to Decatur Arpt Airport?

Prices for flights from Illinois to Decatur Arpt Airport are refreshed on a daily basis.

How old do you have to be to fly from Illinois to Decatur Arpt Airport?

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Illinois to Decatur Arpt Airport.

What documentation or ID do you need to fly to Decatur Arpt Airport?

The required travel and health documents for your Decatur Arpt Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Decatur Arpt Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$93 Cheap Flights from Illinois to Decatur in 2025/26

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Find the cheapest flights from Illinois to Decatur

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Cheap round-trip flights

Enter your travel dates to find the best prices.

7:45 am - 9:05 am

ORD

DEC

1h 20mnonstop

7:09 pm - 8:25 pm

DEC

ORD

1h 16mnonstop

$149United Airlines

Wed, Jan 7 - Sun, Jan 11

7:45 am - 9:05 am

ORD

DEC

1h 20mnonstop

7:09 pm - 8:25 pm

DEC

ORD

1h 16mnonstop

$159United Airlines

Sun, Jan 18 - Sun, Jan 25

4:50 pm - 5:59 pm

ORD

DEC

1h 09mnonstop

7:09 pm - 8:25 pm

DEC

ORD

1h 16mnonstop

$174United Airlines

Fri, Jan 2 - Tue, Jan 6

7:45 am - 8:46 am

ORD

DEC

1h 01mnonstop

6:55 pm - 8:00 pm

DEC

ORD

1h 05mnonstop

$191United Airlines

Thu, May 14 - Sat, May 16

6:25 am - 5:54 pm

STL

DEC

11h 29m1 stop

7:15 pm - 10:59 pm

DEC

STL

3h 44m1 stop

$336United Airlines

Sat, Feb 14 - Wed, Feb 18

United Airlines flights from Illinois to Decatur, Illinois

Our best United Airlines deals on Illinois to Decatur, Illinois flight tickets

United Airlines

Jan 7

ORD7:45 amChicago O'Hare Intl

1h 20m

DEC9:05 amDecatur Arpt

Jan 11

DEC7:09 pmDecatur Arpt

1h 16m

ORD8:25 pmChicago O'Hare Intl

$149

Find similar

United Airlines

Jan 18

ORD7:45 amChicago O'Hare Intl

1h 20m

DEC9:05 amDecatur Arpt

Jan 25

DEC7:09 pmDecatur Arpt

1h 16m

ORD8:25 pmChicago O'Hare Intl

$159

Find similar

United Airlines

Jan 2

ORD4:50 pmChicago O'Hare Intl

1h 09m

DEC5:59 pmDecatur Arpt

Jan 6

DEC7:09 pmDecatur Arpt

1h 16m

ORD8:25 pmChicago O'Hare Intl

$174

Find similar

momondo Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

ChicagoDecatur

ORD - DEC

ORDDEC

Chicago O'Hare Intl

Wed 1/7

7:45 am-9:05 am

Nonstop1h 20m

Decatur Arpt

Sun 1/11

7:09 pm-8:25 pm

Nonstop1h 16m

$149

ChicagoDecatur

ORD - DEC

ORDDEC

Chicago O'Hare Intl

Sun 1/18

7:45 am-9:05 am

Nonstop1h 20m

Decatur Arpt

Sun 1/25

7:09 pm-8:25 pm

Nonstop1h 16m

$159

ChicagoDecatur

ORD - DEC

ORDDEC

Chicago O'Hare Intl

Fri 1/2

4:50 pm-5:59 pm

Nonstop1h 09m

Decatur Arpt

Tue 1/6

7:09 pm-8:25 pm

Nonstop1h 16m

$174

ChicagoDecatur

ORD - DEC

ORDDEC

Chicago O'Hare Intl

Thu 5/14

7:45 am-8:46 am

Nonstop1h 01m

Decatur Arpt

Sat 5/16

6:55 pm-8:00 pm

Nonstop1h 05m

$191

St. LouisDecatur

STL - DEC

STLDEC

Lambert-St Louis

Sat 2/14

6:25 am-5:54 pm

1 stop11h 29m

Decatur Arpt

Wed 2/18

7:15 pm-10:59 pm

1 stop3h 44m

$336

ChicagoDecatur

ORD - DEC

ORDDEC

Chicago O'Hare Intl

Thu 1/15

4:52 pm-6:01 pm

Nonstop1h 09m

$93

Flights are sorted by cheapest round-trip flights first.

Sorted by cheapest first

How to get the cheapest flight ticket from Illinois to Decatur, Illinois

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Other information

What is the cheapest day to depart on your flight to Decatur, Illinois?

The cheapest day to depart on your flight to Decatur, Illinois is on a Thursday when prices can be found for as low as $158. This is often the case because there is less demand to fly during this day of the week. Flights from Illinois to Decatur, Illinois on a Saturday will generally be more expensive and average around $198. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest Illinois to Decatur Arpt flight route?

Fly from Chicago O'Hare Intl to Decatur Arpt for the best Illinois - Decatur Arpt flight prices

What cabin class options are available on Illinois to Decatur Arpt flights?

There is only 1 cabin class available to choose from on Illinois to Decatur Arpt flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Cheap Illinois to Decatur, Illinois flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Illinois to Decatur, Illinois

Fastest flight time	1h 01m
Direct flights	Mon, Thu, Fri and Sat
Airports in Decatur, Illinois	1 airport

The fastest flight from Illinois to Decatur, Illinois takes 1h 01m

Direct flights go from Illinois to Decatur, Illinois on Monday, Thursday, Friday and Saturday. There are no airlines offering direct flights.

There is 1 airport in Decatur, Illinois. From Illinois there are direct flights to Decatur Arpt (DEC).

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When did momondo last update prices for flights from Illinois to Decatur Arpt Airport?
Prices for flights from Illinois to Decatur Arpt Airport are refreshed on a daily basis.
How old do you have to be to fly from Illinois to Decatur Arpt Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Illinois to Decatur Arpt Airport.
What documentation or ID do you need to fly to Decatur Arpt Airport?
The required travel and health documents for your Decatur Arpt Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Decatur Arpt Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular plane model from Illinois to Decatur, Illinois?
momondo data reveals that the most frequently booked plane model on the route from Illinois to Decatur, Illinois is Boeing 737 MAX 8, representing 22.22% of all bookings. The subsequent popular models are Canadair (Bombardier) Regional Jet at 22.22%, De Havilland (Bombardier) DHC-8-400 Dash 8Q at 22.22%, and Airbus A220-300 at 11.11%.

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Why should I use momondo to find a flight deal from Illinois to Decatur?

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Can I find flights from Illinois to Decatur with flexible booking policies on momondo?

Yes. All flights to Decatur from Illinois on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Illinois to Decatur?

Once all potential Illinois to Decatur flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Illinois to Decatur right now. Can momondo alert me if prices change?

Price alerts on flights to Decatur from Illinois are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.