$93 Cheap Flights from Chicago (ORD) to Decatur (DEC)

View $93 flight on Wed, Jan 14, 2026Opens in a new window

Popular airlines from Chicago O'Hare Intl. Airport (ORD) to Decatur, IL (DEC)

  • notification illustration

    Be in the know

    Get alerts if flight prices drop or rise*
  • deals illustration

    Book smarter

    Save up to 30% on select hotels after you book a flight*
  • trophy illustration

    Earn twice

    Earn your airline miles on top of our OneKeyCash
    Learn about One Key

Cheap Flights from Chicago to Decatur (ORD-DEC)

Prices were available within the past 7 days and start at $93 for one-way flights and $149 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Wed, Nov 26 - Mon, Dec 1
ORD
Chicago
DEC
Decatur
$149 Roundtrip, found 1 day ago
$149
Roundtrip
found 1 day ago
Select United flight, departing Wed, Nov 26 from Chicago to Decatur, returning Mon, Dec 1, priced at $149 found 1 day ago
United
Mon, Mar 16 - Tue, Mar 31
ORD
Chicago
DEC
Decatur
$155 Roundtrip, found 4 days ago
$155
Roundtrip
found 4 days ago
Select United flight, departing Mon, Mar 16 from Chicago to Decatur, returning Tue, Mar 31, priced at $155 found 4 days ago
United
Fri, Nov 14 - Tue, Nov 18
ORD
Chicago
DEC
Decatur
$159 Roundtrip, found 11 hours ago
$159
Roundtrip
found 11 hours ago
Select United flight, departing Fri, Nov 14 from Chicago to Decatur, returning Tue, Nov 18, priced at $159 found 11 hours ago
United
Mon, Mar 16 - Tue, Mar 31
ORD
Chicago
DEC
Decatur
$165 Roundtrip, found 4 days ago
$165
Roundtrip
found 4 days ago
Select United flight, departing Mon, Mar 16 from Chicago to Decatur, returning Tue, Mar 31, priced at $165 found 4 days ago
United
Tue, Nov 25 - Fri, Nov 28
ORD
Chicago
DEC
Decatur
$170 Roundtrip, found 1 day ago
$170
Roundtrip
found 1 day ago
Select United flight, departing Tue, Nov 25 from Chicago to Decatur, returning Fri, Nov 28, priced at $170 found 1 day ago
United
Tue, Nov 11 - Tue, Nov 18
ORD
Chicago
DEC
Decatur
$174 Roundtrip, found 11 hours ago
$174
Roundtrip
found 11 hours ago
Select United flight, departing Tue, Nov 11 from Chicago to Decatur, returning Tue, Nov 18, priced at $174 found 11 hours ago
United
Sun, Nov 16 - Tue, Nov 18
ORD
Chicago
DEC
Decatur
$191 Roundtrip, found 11 hours ago
$191
Roundtrip
found 11 hours ago
Select United flight, departing Sun, Nov 16 from Chicago to Decatur, returning Tue, Nov 18, priced at $191 found 11 hours ago
United
Tue, Nov 25 - Thu, Nov 27
ORD
Chicago
DEC
Decatur
$220 Roundtrip, found 6 days ago
$220
Roundtrip
found 6 days ago
Select United flight, departing Tue, Nov 25 from Chicago to Decatur, returning Thu, Nov 27, priced at $220 found 6 days ago
United
Tue, Nov 11 - Fri, Nov 14
ORD
Chicago
DEC
Decatur
$241 Roundtrip, found 11 hours ago
$241
Roundtrip
found 11 hours ago
Select United flight, departing Tue, Nov 11 from Chicago to Decatur, returning Fri, Nov 14, priced at $241 found 11 hours ago
United
Tue, Nov 11 - Wed, Nov 12
ORD
Chicago
DEC
Decatur
$291 Roundtrip, found 11 hours ago
$291
Roundtrip
found 11 hours ago
Select United flight, departing Tue, Nov 11 from Chicago to Decatur, returning Wed, Nov 12, priced at $291 found 11 hours ago
United
Sun, Dec 21 - Tue, Jan 6
ORD
Chicago
DEC
Decatur
$297 Roundtrip, found 6 days ago
$297
Roundtrip
found 6 days ago
Select United flight, departing Sun, Dec 21 from Chicago to Decatur, returning Tue, Jan 6, priced at $297 found 6 days ago
United
Sun, Dec 21 - Tue, Jan 6
ORD
Chicago
DEC
Decatur
$317 Roundtrip, found 6 days ago
$317
Roundtrip
found 6 days ago
Select United flight, departing Sun, Dec 21 from Chicago to Decatur, returning Tue, Jan 6, priced at $317 found 6 days ago
United
Sun, Nov 2 - Wed, Nov 5
ORD
Chicago
DEC
Decatur
$341 Roundtrip, found 2 days ago
$341
Roundtrip
found 2 days ago
Select United flight, departing Sun, Nov 2 from Chicago to Decatur, returning Wed, Nov 5, priced at $341 found 2 days ago
United
Fri, Nov 14 - Sat, Nov 15
ORD
Chicago
DEC
Decatur
$491 Roundtrip, found 11 hours ago
$491
Roundtrip
found 11 hours ago
Select United flight, departing Fri, Nov 14 from Chicago to Decatur, returning Sat, Nov 15, priced at $491 found 11 hours ago

Find the cheapest month to fly from Chicago (ORD) to Decatur (DEC)

February is typically the cheapest month to fly

From $148 - $192 per traveler.

Alternative airports near Decatur

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Decatur, IL DEC. Cheapest and Closest option available. Average driving time to city center is 8 minutes. Flights from $159
DEC
Decatur, IL
CheapestClosest
Average driving time to city center8 min
Flights from $159

Frequently asked questions

How much does a flight from O'Hare Intl. Airport (ORD) to Decatur Airport (DEC) cost?
Grab a cheap one-way flight from $93 or cheap return flight from $149 from O'Hare Intl. Airport (ORD) to Decatur Airport (DEC) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from O'Hare Intl. Airport (ORD) to Decatur Airport (DEC)?
November is the cheapest month to fly from ORD to DEC. Traveling outside of peak seasons is often the key to landing a great deal.
Which airlines fly direct from O'Hare Intl. Airport (ORD) to Decatur Airport (DEC)?
When departing from O'Hare Intl. Airport (ORD), you can hop on a direct flight to Decatur Airport (DEC) with United Airlines.
What is the cheapest airline that flies from O'Hare Intl. Airport (ORD) to Decatur Airport (DEC)?
Expedia's filter tool lets you easily compare airlines, flight times and fares all in one place. Tailor the search to your trip, then sort by "Price (lowest to highest)" to find the carrier with the cheapest ORD to DEC flight.
How many flights per day from O'Hare Intl. Airport (ORD) to Decatur Airport (DEC)?
On average, there's only 1 nonstop flight leaving from O'Hare Intl. Airport (ORD) to Decatur Airport (DEC) per day. If this doesn't fit your plans, consider flights with a layover. Just filter your search results on Expedia to include one or more stops to discover the next best option.
What are the most popular departure times for flights from O'Hare Intl. Airport (ORD) to Decatur Airport (DEC)?
Flights between ORD and DEC are busiest at 1 PM. If you'd like a more relaxed experience and possibly cheaper tickets, look for a time when demand is lower.
What day of the week has the most flights from ORD to DEC?
Travel on a Sunday if you're after the largest selection of flights from O'Hare Intl. Airport (ORD) to Decatur Airport (DEC).
What is the earliest flight from O'Hare Intl. Airport (ORD) to Decatur Airport (DEC)?
Catch the earliest flight at around 7:45AM UTC-6, departing from O'Hare Intl. Airport (ORD). You'll be flying for approximately 1h 10m, coming in to land at Decatur Airport (DEC) at approximately 8:55AM UTC-6.
How long does it take to fly from O'Hare Intl. Airport (ORD) to Decatur Airport (DEC)?
Flights from ORD to DEC have an average travel time of 1 hour and 8 minutes. The total distance between the two airports is 160 mi.
What is the best time to fly from O'Hare Intl. Airport (ORD) to Decatur Airport (DEC)?
To arrive at Decatur Airport (DEC) on schedule, book a flight that leaves from O'Hare Intl. Airport (ORD) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this time.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports do you fly into for Decatur from O'Hare Intl. Airport (ORD)?
Touch down at one of these Decatur airports after your direct flight from O'Hare Intl. Airport (ORD):

  • Central Illinois Regional Airport (BMI)
  • University Of Illinois Urbana-Champaign Williard Airport (CMI)
  • Abraham Lincoln Capital Airport (SPI)

Is it cheaper to buy a plane ticket from O'Hare Intl. Airport (ORD) to Decatur Airport (DEC) last-minute?
Waiting until just before your trip to book a flight from ORD to DEC often results in higher prices. Although you may find some last-minute offers, they aren't always guaranteed. Allow some flexibility in your schedule for a better chance of landing a bargain.
Is it cheaper to book an ORD to DEC flight and hotel package?
Compared with arranging hotels and flights separately, booking an ORD to DEC flight and hotel package with Expedia could result in significant savings. Better yet, managing everything in one place takes the hassle out of planning your trip. Simply pick your flights and choose from our wide range of stays, then tailor your trip with extras like activities, tours and car rentals.
Can I cancel or change the date of my flight from O'Hare Intl. Airport (ORD) to Decatur Airport (DEC)?
Generally, it's possible to reschedule or cancel your ORD to DEC flight. However, if it's been more than 24 hours since booking, additional charges may apply. Check your airline's policies in your itinerary to see what changes are allowed and if any costs are involved. You'll also find more details on our Customer Service portal.

Travel information

Origin airport
O'Hare Intl.
Destination airport
Decatur
Airlines serving
United
Roundtrip price
$148
Distance
156 mi
Average flight time
1 hour 2 mins

Book with confidence

Chicago to Decatur Flights

The cheapest times to fly from Chicago to Decatur

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Chicago to Decatur are during the month of November. You can find some of the cheapest flights from Chicago to Decatur with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Chicago to Decatur

Sunday is one of the best days to book for cheap flights from Chicago to Decatur: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Chicago to Decatur

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Chicago to Decatur in 2025. You can also book with separate airlines for your outbound and return journeys, from $93 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Chicago to Decatur flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Chicago to Decatur airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Chicago to Decatur Flights

Explore a world of travel with Expedia

*Available to One Key members.