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Cheap flights from Calgary to Ontario from C$ 256

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/5. Fares are subject to change and may not be available on all flights or dates of travel.
YYC — ONT
25 May — 1 Jun1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Calgary to Ontario

Enter your travel dates to find the best prices.

Cheapest flights from Calgary to Ontario
Explore the most affordable flight options available from Calgary to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 25 April 2026.

Mon 11/58:45 a.m.
YYC
-
ONT
1 stop26h 20m
Multiple Airlines
Tue 19/56:00 a.m.
ONT
-
YYC
1 stop7h 45m
Multiple Airlines
Deal found 21/4C$ 402
Fri 8/58:45 a.m.
YYC
-
ONT
1 stop26h 20m
Multiple Airlines
Tue 19/56:00 a.m.
ONT
-
YYC
1 stop7h 45m
Multiple Airlines
Deal found 21/4C$ 431
Mon 11/58:45 a.m.
YYC
-
ONT
1 stop26h 20m
Multiple Airlines
Sat 16/58:27 p.m.
ONT
-
YYC
2 stops17h 18m
Multiple Airlines
Deal found 21/4C$ 446
Thu 28/57:45 a.m.
YYC
-
ONT
1 stop9h 32m
Delta
Sun 31/51:29 p.m.
ONT
-
YYC
1 stop8h 28m
Delta
Deal found 20/4C$ 454
Tue 2/63:20 p.m.
YYC
-
ONT
1 stop25h 24m
Multiple Airlines
Tue 9/63:34 p.m.
ONT
-
YYC
2 stops26h 31m
Multiple Airlines
Deal found 21/4C$ 456
Mon 1/67:55 p.m.
YYC
-
ONT
1 stop17h 59m
Multiple Airlines
Tue 9/63:34 p.m.
ONT
-
YYC
2 stops26h 31m
Multiple Airlines
Deal found 21/4C$ 457
Wed 2/97:15 a.m.
YYC
-
ONT
1 stop9h 59m
Delta
Sun 6/91:00 p.m.
ONT
-
YYC
1 stop9h 06m
Delta
Deal found 20/4C$ 464
Wed 6/53:22 p.m.
YYC
-
ONT
1 stop8h 37m
United Airlines
Tue 12/56:00 a.m.
ONT
-
YYC
1 stop5h 19m
United Airlines
Deal found 22/4C$ 465

Find flight deals from Calgary to Ontario

Discover tips and strategies to find the most affordable flight options for your journey from Calgary (YYC) to Ontario (ONT). 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 25 April 2026.

Round-trip from

C$ 402

One-way from

C$ 256

Popular in

October

Cheapest in

December

Average price

C$ 450
11/5-19/5
  • 11/5-19/5
  • 2 total stops
  • 34h 05m total
  • Calgary to Ontario
Search Deals
8/5
  • 8/5
  • 1 total stop
  • 26h 20m total
  • Calgary to Ontario
Search Deals
Highest demand for flights based on searches. 19% potential increase in price (C$ 207 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (C$ 37 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Calgary to Ontario 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 25 April 2026.
Use the filters below to find and compare flights from Calgary to Ontario that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

CalgaryOntario

YYC - ONT

YYCONT

Calgary

Sun 10/5

6:45 a.m.-4:17 p.m.

2 stops10h 32m

Ontario

Tue 12/5

6:00 a.m.-11:37 a.m.

1 stop4h 37m

C$ 480

CalgaryOntario

YYC - ONT

YYCONT

Calgary

Mon 1/6

5:50 p.m.-10:32 p.m.

1 stop5h 42m

Ontario

Wed 3/6

11:52 a.m.-10:15 p.m.

1 stop9h 23m

C$ 538

CalgaryOntario

YYC - ONT

YYCONT

Calgary

Tue 19/5

4:10 p.m.-11:34 p.m.

2 stops8h 24m

Ontario

Tue 26/5

9:50 a.m.-10:15 p.m.

2 stops11h 25m

C$ 538

CalgaryOntario

YYC - ONT

YYCONT

Calgary

Sat 6/6

8:45 a.m.-5:05 p.m.

1 stop9h 20m

Ontario

Fri 12/6

6:00 a.m.-7:40 p.m.

2 stops12h 40m

C$ 538
Quickest round-trip

CalgaryOntario

YYC - ONT

YYCONT

Calgary

Mon 11/5

7:45 a.m.-12:19 p.m.

1 stop5h 34m

Ontario

Fri 15/5

6:45 a.m.-1:10 p.m.

1 stop5h 25m

C$ 538

CalgaryOntario

YYC - ONT

YYCONT

Calgary

Fri 28/8

7:00 a.m.-4:14 p.m.

2 stops10h 14m

Ontario

Sun 30/8

6:00 a.m.-7:40 p.m.

2 stops12h 40m

C$ 547

CalgaryOntario

YYC - ONT

YYCONT

Calgary

Wed 3/6

5:50 p.m.-10:32 p.m.

1 stop5h 42m

Ontario

Sun 7/6

6:00 a.m.-7:40 p.m.

2 stops12h 40m

C$ 553

CalgaryOntario

YYC - ONT

YYCONT

Calgary

Sat 9/5

3:22 p.m.-10:59 p.m.

1 stop8h 37m

Ontario

Sun 17/5

5:00 a.m.-9:48 p.m.

1 stop15h 48m

C$ 586

CalgaryOntario

YYC - ONT

YYCONT

Calgary

Thu 4/6

4:10 p.m.-11:34 p.m.

2 stops8h 24m

Ontario

Thu 11/6

9:40 a.m.-10:15 p.m.

2 stops11h 35m

C$ 588

CalgaryOntario

YYC - ONT

YYCONT

Calgary

Wed 20/5

6:59 p.m.-11:58 p.m.

1 stop5h 59m

Ontario

Wed 27/5

12:06 p.m.-6:09 p.m.

1 stop5h 03m

C$ 620

Flights are sorted by cheapest round-trip flights first.

Deals found on 25/4

Showing 1-10 of 22 resultsSorted by cheapest first
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Best time to book a flight from Calgary to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario 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.

Cheapflights Insights

Everything you need to know about your flight from Calgary to Ontario

What is the cheapest month to book a flight from Calgary to Ontario?

Currently, December is the cheapest month in which you can book a flight from Calgary to Ontario (average of C$ 434). Flying from Calgary to Ontario in October is currently the most expensive (average of C$ 905). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

How much does it cost to fly round-trip from Calgary to Ontario?

Reviews of airlines servicing Ontario

Get insights into the airlines that provide service to Ontario. 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 Ontario. Reviews last updated 25 April 2026.
Check out reviews from past customers who have flown with Delta and United Airlines from Calgary to Ontario to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,458 reviews
Check prices

Comfort

7.9

Entertainment

7.8

Crew

8.5

Boarding

8.1

Overall

7.9

Food

7.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Delta
7.9
Good
8,458 reviews
Delta
7.9
Good
8,458 reviews
Check prices

Comfort

7.9

Entertainment

7.8

Crew

8.5

Boarding

8.1

Overall

7.9

Food

7.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
United Airlines
7.4
Good
9,650 reviews
Delta
7.9
Good
8,458 reviews
Check prices

Comfort

7.9

Entertainment

7.8

Crew

8.5

Boarding

8.1

Overall

7.9

Food

7.2

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Related info for your journey

Find useful and relevant information for your journey from Calgary to Ontario. 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 Ontario?

    Airlines like Delta fly from Calgary to Ontario in about 10h 32m. The time it takes to get you to your destination can typically vary by up to . Airlines will cover a distance of 1918 km.

  • What are the cheapest airlines flying from Calgary to Ontario round-trip?

    Currently priced at C$ 369, Delta will fly you from Calgary to Ontario and back. In addition to Delta, many other airlines offer competitively priced options for your trip. Check Cheapflights for deals on United Airlines for as low as C$ 442. You may be able to fly from Calgary to Ontario for 40% less than the average price by searching for these airlines.

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

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

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

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

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

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

  • What is the cheapest month to book a flight from Calgary to Ontario?

    Currently, December is the cheapest month in which you can book a flight from Calgary to Ontario (average of C$ 434). Flying from Calgary to Ontario in October is currently the most expensive (average of C$ 905). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Top 2 airlines flying from Calgary to Ontario

Discover the top 2 airlines that operate flights from Calgary to Ontario. 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 25 April 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapestC$ 369AverageC$ 540FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
United AirlinesCheapestC$ 442AverageC$ 640FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travelers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Calgary to Ontario?

900+ travel sites are searched through when a user searches for a flight using Cheapflights. From the search interface, users can use filters to choose airlines, airports, flight times, cabin classes and more to their preference. Book your flight to Ontario from Calgary today with Cheapflights!

Why should you use Cheapflights to find cheap flight tickets from Calgary to Ontario?

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Ontario from Calgary.

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

Yes, we can. To see specific flights from Calgary to Ontario with no change fees, users can toggle flexible booking options after using the search form above to find flights.

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

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Ontario from Calgary today and book when prices fit your budget.

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