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Cheap flights from Calgary to Ontario from C$ 249

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 18/5. Fares are subject to change and may not be available on all flights or dates of travel.
YYC — ONT
10 May — 17 May1
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 10 April 2026.

Mon 4/58:45 a.m.
YYC
-
ONT
1 stop16h 10m
Multiple Airlines
Mon 11/56:00 a.m.
ONT
-
YYC
1 stop7h 45m
Multiple Airlines
Deal found 6/4C$ 407
Tue 28/47:40 a.m.
YYC
-
ONT
1 stop9h 45m
Delta
Fri 8/51:29 p.m.
ONT
-
YYC
1 stop8h 28m
Delta
Deal found 5/4C$ 433
Mon 19/107:15 a.m.
YYC
-
ONT
1 stop9h 57m
Delta
Fri 23/105:05 p.m.
ONT
-
YYC
1 stop5h 08m
Delta
Deal found 5/4C$ 441
Tue 28/47:40 a.m.
YYC
-
ONT
1 stop9h 45m
Delta
Tue 5/56:00 a.m.
ONT
-
YYC
1 stop4h 39m
Delta
Deal found 6/4C$ 454
Thu 23/43:22 p.m.
YYC
-
ONT
1 stop8h 23m
United Airlines
Tue 28/46:00 a.m.
ONT
-
YYC
1 stop5h 19m
United Airlines
Deal found 7/4C$ 455
Tue 28/47:40 a.m.
YYC
-
ONT
1 stop9h 45m
Delta
Wed 6/51:29 p.m.
ONT
-
YYC
1 stop8h 31m
Delta
Deal found 9/4C$ 456
Tue 28/47:40 a.m.
YYC
-
ONT
1 stop5h 34m
Delta
Thu 7/56:00 a.m.
ONT
-
YYC
1 stop4h 37m
Delta
Deal found 5/4C$ 458
Sat 5/92:00 p.m.
YYC
-
ONT
1 stop9h 44m
Delta
Tue 8/91:00 p.m.
ONT
-
YYC
1 stop9h 06m
Delta
Deal found 8/4C$ 463
Mon 27/47:40 a.m.
YYC
-
ONT
1 stop9h 45m
Delta
Tue 5/51:29 p.m.
ONT
-
YYC
1 stop8h 31m
Delta
Deal found 10/4C$ 465
Sat 2/57:40 a.m.
YYC
-
ONT
1 stop9h 45m
Delta
Wed 6/56:00 a.m.
ONT
-
YYC
1 stop4h 39m
Delta
Deal found 5/4C$ 473
Thu 20/89:30 a.m.
YYC
-
ONT
1 stop12h 22m
United Airlines
Fri 21/85:00 a.m.
ONT
-
YYC
1 stop12h 30m
United Airlines
Deal found 8/4C$ 476
Mon 27/43:22 p.m.
YYC
-
ONT
1 stop8h 23m
United Airlines
Tue 5/56:00 a.m.
ONT
-
YYC
1 stop5h 19m
United Airlines
Deal found 9/4C$ 478

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 10 April 2026.

Round-trip from

C$ 407

One-way from

C$ 249

Popular in

October

Cheapest in

December

Average price

C$ 455
4/5-11/5
  • 4/5-11/5
  • 2 total stops
  • 23h 55m total
  • Calgary to Ontario
Search Deals
18/5
  • 18/5
  • 1 total stop
  • 26h 20m total
  • Calgary to Ontario
Search Deals
Highest demand for flights based on searches. 19% potential increase in price (C$ 211 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease (C$ 38 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 10 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

Tue 28/4

7:40 a.m.-4:25 p.m.

1 stop9h 45m

Ontario

Tue 5/5

6:00 a.m.-11:39 a.m.

1 stop4h 39m

C$ 454

CalgaryOntario

YYC - ONT

YYCONT

Calgary

Sat 2/5

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

1 stop8h 37m

Ontario

Wed 6/5

6:59 p.m.-12:19 p.m.

1 stop16h 20m

C$ 455
Quickest round-trip

CalgaryOntario

YYC - ONT

YYCONT

Calgary

Tue 28/4

7:40 a.m.-12:14 p.m.

1 stop5h 34m

Ontario

Thu 7/5

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

1 stop4h 37m

C$ 458

CalgaryOntario

YYC - ONT

YYCONT

Calgary

Sat 2/5

7:40 a.m.-4:25 p.m.

1 stop9h 45m

Ontario

Fri 8/5

1:29 p.m.-10:57 p.m.

1 stop8h 28m

C$ 473

CalgaryOntario

YYC - ONT

YYCONT

Calgary

Sat 2/5

7:40 a.m.-4:25 p.m.

1 stop9h 45m

Ontario

Tue 5/5

6:00 a.m.-11:39 a.m.

1 stop4h 39m

C$ 473

CalgaryOntario

YYC - ONT

YYCONT

Calgary

Wed 29/4

7:40 a.m.-12:14 p.m.

1 stop5h 34m

Ontario

Wed 6/5

6:00 a.m.-11:39 a.m.

1 stop4h 39m

C$ 473

CalgaryOntario

YYC - ONT

YYCONT

Calgary

Sat 2/5

7:40 a.m.-4:25 p.m.

1 stop9h 45m

Ontario

Wed 6/5

6:00 a.m.-11:39 a.m.

1 stop4h 39m

C$ 473

CalgaryOntario

YYC - ONT

YYCONT

Calgary

Mon 27/4

3:22 p.m.-10:45 p.m.

1 stop8h 23m

Ontario

Wed 6/5

6:00 a.m.-12:19 p.m.

1 stop5h 19m

C$ 487

CalgaryOntario

YYC - ONT

YYCONT

Calgary

Sat 25/4

6:40 a.m.-4:25 p.m.

2 stops10h 45m

Ontario

Wed 29/4

6:00 a.m.-11:39 a.m.

1 stop4h 39m

C$ 487

CalgaryOntario

YYC - ONT

YYCONT

Calgary

Mon 27/4

5:50 p.m.-10:37 p.m.

1 stop5h 47m

Ontario

Sat 9/5

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

1 stop5h 25m

C$ 516

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/4

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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, October is the cheapest month in which you can book a flight from Calgary to Ontario (average of C$ 105). Flying from Calgary to Ontario in December is currently the most expensive (average of C$ 260). 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.

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 10 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
8,398 reviews
Check prices

Entertainment

7.8

Overall

7.9

Comfort

7.9

Food

7.2

Crew

8.5

Boarding

8.1

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
8,398 reviews
Delta
7.9
Good
8,398 reviews
Check prices

Entertainment

7.8

Overall

7.9

Comfort

7.9

Food

7.2

Crew

8.5

Boarding

8.1

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
9,562 reviews
Delta
7.9
Good
8,398 reviews
Check prices

Entertainment

7.8

Overall

7.9

Comfort

7.9

Food

7.2

Crew

8.5

Boarding

8.1

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 and United Airlines fly from Calgary to Ontario in about 8h 37m. The time it takes to get you to your destination can typically vary by up to 1h 08m. Airlines will cover a distance of 1918 km. This flight may include one or multiple stops.

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

    Currently priced at C$ 373, 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$ 446. 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, October is the cheapest month in which you can book a flight from Calgary to Ontario (average of C$ 105). Flying from Calgary to Ontario in December is currently the most expensive (average of C$ 260). 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 10 April 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapestC$ 373AverageC$ 546FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
United AirlinesCheapestC$ 446AverageC$ 647FlexibilityNo 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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