$426+ Cheap flights from Harrisburg to Decatur, IL (MDT - 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 1/27. Fares are subject to change and may not be available on all flights or dates of travel.
MDT — DEC
Jan 25 — Feb 11
1 adult, Economy
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1. Tell us where you want to go
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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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 Harrisburg to Decatur
Best flights from Harrisburg to DecaturDiscover carefully curated flight deals from Harrisburg to Decatur that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 26, 2025.
Discover carefully curated flight deals from Harrisburg to Decatur that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 26, 2025.
This United Airlines deal was found by Cheapflights users on 12/23. 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 1/246:30 amMDT - DEC
1 stop12h 31mUnited Airlines
Tue 1/277:09 pmDEC - MDT
1 stop24h 56mUnited Airlines
Deal found 12/23![United Airlines logo]()
$426
This United Airlines deal was found by Cheapflights users on 12/24. 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 1/276:30 amMDT - DEC
1 stop12h 31mUnited Airlines
Sat 1/317:09 pmDEC - MDT
1 stop24h 56mUnited Airlines
Deal found 12/24![United Airlines logo]()
$426
Find flight deals from Harrisburg to Decatur
Discover tips and strategies to find the most affordable flight options for your journey from Harrisburg (MDT) 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 December 26, 2025.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 1 star |
Round-trip from | $426 (United Airlines) |
Cheapflights Fare Finder
Customize your flight search to find flights from Harrisburg 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 December 26, 2025.
Use the filters below to find and compare flights from Harrisburg to Decatur that are best for you.
Fly from
Harrisburg
Fly to
Decatur
Route
Depart
Return
Price
HarrisburgDecatur
MDT - DEC
MDTDEC
Harrisburg
Sat 1/24
6:30 am-6:01 pm
1 stop12h 31m
Decatur Arpt
Tue 1/27
7:09 pm-9:05 pm
1 stop24h 56m
$426
HarrisburgDecatur
MDT - DEC
MDTDEC
Harrisburg
Tue 1/27
6:30 am-6:01 pm
1 stop12h 31m
Decatur Arpt
Sat 1/31
7:09 pm-9:05 pm
1 stop24h 56m
$426
- Most accurate provider: When it comes to deals on Harrisburg-Decatur, Illinois flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Harrisburg-Decatur, Illinois flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Harrisburg-Decatur, Illinois flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Harrisburg-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 Harrisburg-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 Harrisburg to Decatur
Have a flexible travel schedule? Discover the best time to fly to Decatur from Harrisburg 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.
Related info for your journey
Find useful and relevant information for your journey from Harrisburg 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?
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Effingham