$328+ Cheap flights from Kansas City to Decatur, IL (MCI - 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 12/20. Fares are subject to change and may not be available on all flights or dates of travel.
MCI — DEC
Oct 17 — Oct 241
Round-trip
1 adult, Economy
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Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Cheapest
Best
Last-minute
One-way
Cheapest flights from Kansas City to DecaturExplore the most affordable flight options available from Kansas City to Decatur. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 17, 2026.
Explore the most affordable flight options available from Kansas City to Decatur. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 17, 2026.
This United Airlines deal was found by Cheapflights users on 9/14. 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.
Tue 9/291:07 pm -
1 stop5h 36m
Sat 10/37:18 pm -
1 stop13h 49m
Deal found 9/14![United Airlines logo]()
$557
This United Airlines deal was found by Cheapflights users on 9/13. 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.
Fri 12/187:31 am -
1 stop10h 25m
Sun 12/207:03 pm -
1 stop4h 35m
Deal found 9/13![United Airlines logo]()
$581
This United Airlines deal was found by Cheapflights users on 9/16. 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 9/201:08 pm -
1 stop5h 36m
Tue 9/227:20 pm -
1 stop26h 27m
Deal found 9/16![United Airlines logo]()
$887
Best flights from Kansas City to DecaturDiscover carefully curated flight deals from Kansas City to Decatur that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 17, 2026.
Discover carefully curated flight deals from Kansas City to Decatur that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 17, 2026.
This United Airlines deal was found by Cheapflights users on 9/14. 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.
Tue 9/291:07 pm -
1 stop5h 36m
Sat 10/37:18 pm -
1 stop13h 49m
Deal found 9/14![United Airlines logo]()
$557
This United Airlines deal was found by Cheapflights users on 9/13. 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.
Fri 12/187:31 am -
1 stop10h 25m
Sun 12/207:03 pm -
1 stop4h 35m
Deal found 9/13![United Airlines logo]()
$581
Last-minute flights from Kansas City to DecaturDiscover last-minute flight deals from Kansas City to Decatur. Data last updated September 17, 2026 and is based on user searches.
Discover last-minute flight deals from Kansas City to Decatur. Data last updated September 17, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 9/16. 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 9/201:08 pm -
1 stop5h 36m
Tue 9/227:20 pm -
1 stop26h 27m
Deal found 9/16![United Airlines logo]()
$887
This United Airlines deal was found by Cheapflights users on 9/14. 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.
Tue 9/291:07 pm -
1 stop5h 36m
Sat 10/37:18 pm -
1 stop13h 49m
Deal found 9/14![United Airlines logo]()
$557
One-way flights from Kansas City to DecaturSearch for one-way flight options from Kansas City to Decatur. Find affordable one-way fares based on user searches. Data last updated September 17, 2026.
Search for one-way flight options from Kansas City to Decatur. Find affordable one-way fares based on user searches. Data last updated September 17, 2026.
This United Airlines deal was found by Cheapflights users on 9/13. 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 12/207:31 am -
1 stop25h 12m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/13![United Airlines logo]()
$328
Find flight deals from Kansas City to Decatur
Discover tips and strategies to find the most affordable flight options for your journey from Kansas City (MCI) 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 September 17, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $557 (United Airlines) |
One-way from | $328 (United Airlines) |
Cheapflights Fare Finder
Customize your flight search to find flights from Kansas City 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 7,457,451 searches. Data last updated September 17, 2026.
Use the filters below to find and compare flights from Kansas City to Decatur that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Kansas CityDecatur
MCI Kansas City - DEC Decatur Arpt
MCIDEC
Kansas City
Sun 12/20
5:13 pm-8:43 am
2 stops39h 30m
Decatur Arpt
Wed 12/31
12:00 am-12:00 am
Nonstop0h 00m
$491
Kansas CityDecatur
MCI Kansas City - DEC Decatur Arpt
MCIDEC
Kansas City
Tue 9/29
1:07 pm-6:43 pm
1 stop5h 36m
Decatur Arpt
Sat 10/3
7:18 pm-9:07 am
1 stop13h 49m
$557
Quickest round-trip
Kansas CityDecatur
MCI Kansas City - DEC Decatur Arpt
MCIDEC
Kansas City
Fri 12/18
7:31 am-5:56 pm
1 stop10h 25m
Decatur Arpt
Sun 12/20
7:03 pm-11:38 pm
1 stop4h 35m
$581
Sorted by cheapest first
- Most accurate provider: When it comes to deals on Kansas City-Decatur, Illinois flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Kansas City-Decatur, Illinois flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Kansas City-Decatur, Illinois flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Kansas City-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 Kansas City-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 Kansas City to Decatur
Have a flexible travel schedule? Discover the best time to fly to Decatur from Kansas City with our price prediction graph.
MCI-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.
Related info for your journey
Find useful and relevant information for your journey from Kansas City to Decatur. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Decatur?
Book flights to Decatur if you plan to visit one of these locationsMattoon
Effingham
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