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Cheap flights from Calgary to Decatur, IL from C$ 746

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 8/4. Fares are subject to change and may not be available on all flights or dates of travel.
YYC — DEC
26 Feb — 5 Mar1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Calgary to Decatur

Enter your travel dates to find the best prices.

Cheapest flights from Calgary to Decatur
Explore the most affordable flight options available from Calgary to Decatur. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 27 January 2026.

Wed 8/46:00 a.m.
YYC
-
DEC
2 stops25h 58m
United Airlines
Sat 11/47:20 p.m.
DEC
-
YYC
2 stops27h 28m
United Airlines
Deal found 25/1C$ 746

Find flight deals from Calgary to Decatur

Discover tips and strategies to find the most affordable flight options for your journey from Calgary (YYC) 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 27 January 2026.

Round-trip from

C$ 715
United Airlines
  • United Airlines
  • 8/4-11/4
  • 3 total stops
  • 52h 14m total
  • Calgary to Decatur
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Calgary 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 629,999 searches. Data last updated 27 January 2026.
Use the filters below to find and compare flights from Calgary to Decatur that are best for you.

Fly from

Calgary

Fly to

Decatur

Route

Depart

Return

Price

CalgaryDecatur

YYC - DEC

YYCDEC

Calgary

Wed 8/4

1:27 p.m.-6:02 p.m.

2 stops27h 35m

Decatur Arpt

Sat 11/4

7:20 p.m.-11:32 a.m.

1 stop17h 12m

C$ 746

Flights are sorted by cheapest round-trip flights first.

Deals found on 25/1

Best time to book a flight from Calgary to Decatur

Have a flexible travel schedule? Discover the best time to fly to Decatur from Calgary 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 Calgary 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 Calgary to Decatur, Illinois?

    Departing from Calgary to Decatur, Illinois will take you 27h 35m. The distance between Calgary and Decatur, Illinois is about 2309 km.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Calgary 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.

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Can Cheapflights find flights from Calgary to Decatur with no change fees?

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Can Cheapflights notify me if prices for flights from Calgary to Decatur become cheaper?

Yes! Start tracking prices for Calgary to Decatur flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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