$149+ Cheap flights from Illinois 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 4/5. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — DEC
Feb 25 — Mar 41
1 adult, Economy
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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Illinois to Decatur
Keep the following information in mind while searching for Illinois to Decatur flight deals. Data was last updated February 20, 2025.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $149 (United Airlines) |
Find flight deals from Illinois to Decatur
Cheapest flights from Illinois to DecaturExplore the most affordable flight options available from Illinois to Decatur. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 20, 2025.
Explore the most affordable flight options available from Illinois to Decatur. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 20, 2025.
This United Airlines deal was found by Cheapflights users on 2/20. 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.
Sat 4/512:55 pmORD - DEC
Nonstop1h 05mUnited Airlines
Sat 4/122:35 pmDEC - ORD
Nonstop1h 05mUnited Airlines
Deal found 2/20![United Airlines logo]()
$149
This United Airlines deal was found by Cheapflights users on 2/20. 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.
Sun 3/1611:05 amSTL - DEC
1 stop21h 45mUnited Airlines
Wed 3/193:00 pmDEC - STL
1 stop23h 23mUnited Airlines
Deal found 2/20![United Airlines logo]()
$503
Find flights from Illinois to Decatur within your budget
Customize your flight search to find flights from Illinois 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 February 20, 2025.
Fly from
Illinois
Fly to
Decatur
Route
Depart
Return
Price
ChicagoDecatur
ORD - DEC
ORDDEC
Chicago O'Hare Intl
Sat 4/5
12:55 pm-2:00 pm
Nonstop1h 05m
Decatur Arpt
Sat 4/12
2:35 pm-3:40 pm
Nonstop1h 05m
$149
St. LouisDecatur
STL - DEC
STLDEC
Lambert-St Louis
Sun 3/16
11:05 am-8:50 am
1 stop21h 45m
Decatur Arpt
Wed 3/19
3:00 pm-2:23 pm
1 stop23h 23m
$503
ChicagoDecatur
ORD - DEC
ORDDEC
Chicago O'Hare Intl
Tue 2/25
1:30 pm-2:28 pm
Nonstop0h 58m
$193
Best time to book a flight from Illinois to Decatur
Have a flexible travel schedule? Discover the best time to fly to Decatur from Illinois 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.
Travel insights for flights from Illinois to Decatur
Get recent, data-driven insights about flights from Illinois to Decatur including ideal travel times, pricing trends, and more.
What is the cheapest time of day to fly from IL to DEC?
Find hourly flight availability from Illinois 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 February 20, 2025.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Illinois to Decatur, Illinois as you normally would.
Weekly flight availability from Illinois to Decatur, Illinois
Explore weekly flight availability from Illinois 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 February 20, 2025.
The most flights from USIL 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).
Rainfall in Decatur by month
Plan your trip to Decatur by taking into account the average rainfall totals by month.
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.
Temperature in Decatur by month
Plan your trip to Decatur by taking into account the average temperature totals by month.
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).
Reviews of airlines servicing Decatur
Get insights into the airlines that provide service to Decatur. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Decatur. Reviews last updated February 20, 2025.
Food
6.7
Boarding
7.7
Comfort
7.3
Overall
7.4
Crew
8.1
Entertainment
7.1
Reviews
1 / 20
2.0
MediocreDeb,Jan 2025
MKE - ORD
Food
6.7
Boarding
7.7
Comfort
7.3
Overall
7.4
Crew
8.1
Entertainment
7.1
Reviews
1 / 20
2.0
MediocreDeb,Jan 2025
MKE - ORD
Related info for your journey
Find useful and relevant information for your journey from Illinois to Decatur. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Book flights to Illinois if you plan to visit one of these locationsMattoon
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Alternative routes for Illinois to Decatur
See prices for flight routes from nearby airports that may be better suited for you.
Top airline flying from Illinois to Decatur
Discover the top airline that operate flights from Illinois to Decatur. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated February 20, 2025.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$132 | Average$173 | FlexibilityNo cancel fee | On-time69% |