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Cheap flights from Calgary to Decatur, IL from C$ 735

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 10/9. Fares are subject to change and may not be available on all flights or dates of travel.
YYC — DEC
3 Aug — 10 Aug1
1 adult

Cheap 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 29 July 2025.

Round-trip from

C$ 735
United Airlines
  • United Airlines
  • 10/9-17/9
  • 3 total stops
  • 39h 52m total
  • Calgary to Decatur
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Find flight deals from Calgary to Decatur

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 29 July 2025.

Wed 10/96:15 a.m.YYC - DEC
2 stops25h 41mUnited Airlines
Wed 17/99:42 a.m.DEC - YYC
1 stop14h 11mUnited Airlines
Deal found 26/7C$ 735
Mon 25/86:15 a.m.YYC - DEC
2 stops25h 41mMultiple Airlines
Wed 27/89:30 a.m.DEC - YYC
2 stops15h 40mMultiple Airlines
Deal found 28/7C$ 1,207

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 29 July 2025.
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 10/9

6:15 a.m.-8:56 a.m.

2 stops25h 41m

Decatur Arpt

Wed 17/9

9:42 a.m.-10:53 p.m.

1 stop14h 11m

C$ 735

CalgaryDecatur

YYC - DEC

YYCDEC

Calgary

Mon 25/8

6:15 a.m.-8:56 a.m.

2 stops25h 41m

Decatur Arpt

Wed 27/8

9:30 a.m.-12:10 a.m.

2 stops15h 40m

C$ 1,207

Flights are sorted by cheapest round-trip flights first.

Deals found on 26/7

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.

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 29 July 2025.
See what other customers who have flown with United Airlines from Calgary to Decatur have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
8,896 reviews
Check prices

Comfort

7.3

Food

6.6

Boarding

7.7

Entertainment

7.1

Overall

7.4

Crew

8.1

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!
United Airlines
7.4
Good
8,896 reviews
United Airlines
7.4
Good
8,896 reviews
Check prices

Comfort

7.3

Food

6.6

Boarding

7.7

Entertainment

7.1

Overall

7.4

Crew

8.1

Reviews

1 / 20
2.0
Mediocre

Deb,Jan 2025

MKE - ORD

It was terrible! So much to say, but in a nutshell we used vouchers from United because our last trip with them was awful with many mishaps and errors made. Unfortunately, this trip was even worse!

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.

  • 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.

Browse thousands of different options on Cheapflights for your next trip

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Top airline flying from Calgary to Decatur

Discover the top airline that operate flights from Calgary 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 629,999 searches. Data last updated 29 July 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapestC$ 1,058AverageC$ 1,712FlexibilityNo cancel feeOn-time69%
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