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$364+ Cheap flights from Greenville to Decatur, IL (GSP - 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 12/5. Fares are subject to change and may not be available on all flights or dates of travel.
GSP — DEC
Sep 10 — Sep 171
Thu 9/10
Thu 9/17
1 adult, Economy
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Cheap flight deals from Greenville to Decatur

Cheapest flights from Greenville to Decatur
Explore the most affordable flight options available from Greenville to Decatur. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 11, 2026.

This United Airlines deal was found by Cheapflights users on 8/6. 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 12/52:23 pm -
1 stop4h 28m
Wed 12/99:42 am -
1 stop6h 18m
Deal found 8/6$364

Find flight deals from Greenville to Decatur

Discover tips and strategies to find the most affordable flight options for your journey from Greenville (GSP) 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 August 11, 2026.

Most accurate provider

Expedia
1 star

Most trusted provider

Expedia
3 stars

Round-trip from

$364
(United Airlines)
Provider with most accurate pricing for Greenville-Decatur Arpt flight deals.
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Provider most trusted by Cheapflights users for Greenville-Decatur Arpt flights.
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From Greenville to Decatur Arpt
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Greenville 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 August 11, 2026.
Use the filters below to find and compare flights from Greenville to Decatur that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

GreenvilleDecatur

GSP Greenville - DEC Decatur Arpt

GSPDEC

Greenville

Sat 12/5

2:23 pm-5:51 pm

1 stop4h 28m

Decatur Arpt

Wed 12/9

9:42 am-5:00 pm

1 stop6h 18m

$364

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/6

Sorted by cheapest first
  • Most accurate provider: When it comes to deals on Greenville-Decatur, Illinois flights, users find the pricing of Expedia to be most consistent on Cheapflights vs. Expedia Users can find the same prices on Greenville-Decatur, Illinois flight deals on Cheapflights vs. Expedia <90% of the time. Price accuracy is based on data collected from Greenville-Decatur, Illinois flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Greenville-Decatur, Illinois flights, Cheapflights users trust Expedia the most. Expedia 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 Greenville-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 Greenville to Decatur

Have a flexible travel schedule? Discover the best time to fly to Decatur from Greenville 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 Greenville to Decatur. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Greenville to Decatur, Illinois?

    A quick flight from Greenville to Decatur, Illinois can take about 4h 28m. United Airlines provides one of the quickest options available for as low as $364. The distance between Greenville and Decatur, Illinois is about 499 mi.

  • Can I find deals for flights from Greenville to Decatur that include hotel bookings?

    Yes. In addition to deals on Greenville to Decatur flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Greenville to Decatur?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Greenville to Decatur.

  • Can I find deals for business class flights from Greenville to Decatur?

    Yes. Cheapflights offers flight deals from Greenville to Decatur by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Traveling to a place near Decatur?

Book flights to Decatur if you plan to visit one of these locations
Mattoon
Effingham

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