Cheap Flights from Ontario International to Calgary

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Travellers and bags, 1 Adult, Economy

Compare Ontario International to Calgary flight deals

Find the cheapest month or even day of the year to fly to Calgary

Book the best Calgary fare with no extra fees

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Flight deals from Ontario International to Calgary

Looking for a cheap last-minute deal or the best return flight from Ontario International Airport to Calgary Airport? If you want to travel next month, return fares start from $636. Find the lowest prices on one-way and return tickets right here.

Calgary.$636 per passenger.Departing Thu, 10 Sep, returning Sat, 12 Sep.Return flight with Frontier Airlines and WestJet.Outbound indirect flight with Frontier Airlines, departs from Ontario International on Thu, 10 Sep, arriving in Calgary.Inbound indirect flight with WestJet, departs from Calgary on Sat, 12 Sep, arriving in Ontario International.Price includes taxes and charges.From $636, select.

Calgary.$670 per passenger.Departing Tue, 20 Oct, returning Fri, 23 Oct.Return flight with United.Outbound indirect flight with United, departs from Ontario International on Tue, 20 Oct, arriving in Calgary.Inbound indirect flight with United, departs from Calgary on Fri, 23 Oct, arriving in Ontario International.Price includes taxes and charges.From $670, select.

Calgary.$681 per passenger.Departing Fri, 30 Oct, returning Sun, 1 Nov.Return flight with Delta.Outbound indirect flight with Delta, departs from Ontario International on Fri, 30 Oct, arriving in Calgary.Inbound indirect flight with Delta, departs from Calgary on Sun, 1 Nov, arriving in Ontario International.Price includes taxes and charges.From $681, select.

Calgary.$685 per passenger.Departing Fri, 25 Sep, returning Thu, 1 Oct.Return flight with WestJet.Outbound indirect flight with WestJet, departs from Ontario International on Fri, 25 Sep, arriving in Calgary.Inbound indirect flight with WestJet, departs from Calgary on Thu, 1 Oct, arriving in Ontario International.Price includes taxes and charges.From $685, select.

Calgary.$741 per passenger.Departing Thu, 27 Aug, returning Wed, 2 Sep.Return flight with WestJet.Outbound indirect flight with WestJet, departs from Ontario International on Thu, 27 Aug, arriving in Calgary.Inbound indirect flight with WestJet, departs from Calgary on Wed, 2 Sep, arriving in Ontario International.Price includes taxes and charges.From $741, select.

Calgary.$748 per passenger.Departing Mon, 24 Aug, returning Mon, 31 Aug.Return flight with Alaska Airlines and WestJet.Outbound indirect flight with Alaska Airlines, departs from Ontario International on Mon, 24 Aug, arriving in Calgary.Inbound indirect flight with WestJet, departs from Calgary on Mon, 31 Aug, arriving in Ontario International.Price includes taxes and charges.From $748, select.

Calgary.$790 per passenger.Departing Tue, 19 Jan, returning Sun, 24 Jan.Return flight with Alaska Airlines.Outbound indirect flight with Alaska Airlines, departs from Ontario International on Tue, 19 Jan, arriving in Calgary.Inbound indirect flight with Alaska Airlines, departs from Calgary on Sun, 24 Jan, arriving in Ontario International.Price includes taxes and charges.From $790, select.

Calgary.$792 per passenger.Departing Mon, 26 Apr, returning Mon, 3 May.Return flight with Alaska Airlines.Outbound indirect flight with Alaska Airlines, departs from Ontario International on Mon, 26 Apr, arriving in Calgary.Inbound indirect flight with Alaska Airlines, departs from Calgary on Mon, 3 May, arriving in Ontario International.Price includes taxes and charges.From $792, select.

Calgary.$806 per passenger.Departing Wed, 4 Nov, returning Wed, 11 Nov.Return flight with Delta.Outbound indirect flight with Delta, departs from Ontario International on Wed, 4 Nov, arriving in Calgary.Inbound indirect flight with Delta, departs from Calgary on Wed, 11 Nov, arriving in Ontario International.Price includes taxes and charges.From $806, select.

Calgary.$831 per passenger.Departing Fri, 11 Dec, returning Tue, 15 Dec.Return flight with Alaska Airlines.Outbound indirect flight with Alaska Airlines, departs from Ontario International on Fri, 11 Dec, arriving in Calgary.Inbound indirect flight with Alaska Airlines, departs from Calgary on Tue, 15 Dec, arriving in Ontario International.Price includes taxes and charges.From $831, select.

Calgary.$864 per passenger.Departing Fri, 25 Dec, returning Wed, 6 Jan.Return flight with Alaska Airlines.Outbound indirect flight with Alaska Airlines, departs from Ontario International on Fri, 25 Dec, arriving in Calgary.Inbound indirect flight with Alaska Airlines, departs from Calgary on Wed, 6 Jan, arriving in Ontario International.Price includes taxes and charges.From $864, select.

Calgary.$889 per passenger.Departing Mon, 10 May, returning Fri, 14 May.Return flight with Alaska Airlines.Outbound indirect flight with Alaska Airlines, departs from Ontario International on Mon, 10 May, arriving in Calgary.Inbound indirect flight with Alaska Airlines, departs from Calgary on Fri, 14 May, arriving in Ontario International.Price includes taxes and charges.From $889, select.

Calgary.$901 per passenger.Departing Fri, 4 Jun, returning Thu, 10 Jun.Return flight with Delta.Outbound indirect flight with Delta, departs from Ontario International on Fri, 4 Jun, arriving in Calgary.Inbound indirect flight with Delta, departs from Calgary on Thu, 10 Jun, arriving in Ontario International.Price includes taxes and charges.From $901, select.

Calgary.$1,022 per passenger.Departing Mon, 22 Mar, returning Mon, 5 Apr.Return flight with Alaska Airlines and Air Canada.Outbound indirect flight with Alaska Airlines, departs from Ontario International on Mon, 22 Mar, arriving in Calgary.Inbound indirect flight with Air Canada, departs from Calgary on Mon, 5 Apr, arriving in Ontario International.Price includes taxes and charges.From $1,022, select.

Calgary.$1,122 per passenger.Departing Sun, 14 Mar, returning Sat, 20 Mar.Return flight with Air Canada and Alaska Airlines.Outbound indirect flight with Air Canada, departs from Ontario International on Sun, 14 Mar, arriving in Calgary.Inbound indirect flight with Alaska Airlines, departs from Calgary on Sat, 20 Mar, arriving in Ontario International.Price includes taxes and charges.From $1,122, select.

Calgary.$1,124 per passenger.Departing Fri, 30 Oct, returning Mon, 28 Dec.Return flight with Air Canada.Outbound indirect flight with Air Canada, departs from Ontario International on Fri, 30 Oct, arriving in Calgary.Inbound indirect flight with Air Canada, departs from Calgary on Mon, 28 Dec, arriving in Ontario International.Price includes taxes and charges.From $1,124, select.

Find the cheapest month to fly from Ontario International to Calgary

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Ontario International to Calgary flights are currently cheapest in September.

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Ontario International to Calgary: Alternative routes

Compare routes from Ontario International to Calgary below. You may find an airport to fly into that's cheaper, faster, or easier than Calgary.

Calgary

8km from central Calgary

ClosestCheapest

from $636

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Ontario to Calgary: Flight information

The things to know before you go.

Cheapest flight found	$636
Cheapest month to fly	September

Finding cheap flights from Ontario International to Calgary: Frequently asked questions

How much are return flights from Ontario International to Calgary?

The best price we found for a return flight from Ontario International to Calgary is $636. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.

Which airlines fly direct from Ontario International to Calgary?

Currently, there are no airlines that fly direct from Ontario International to Calgary. But we found flights with one or more stops from $636.

How many flights are there a week from Ontario International to Calgary?

As of August 2026, there are no flights flying from Ontario International to Calgary.

When is the cheapest time to fly from Ontario International to Calgary?

The cheapest month to fly from Ontario International to Calgary is usually September.

Which upcoming date is cheapest to fly from Ontario International Airport to Calgary Airport on?

After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Ontario International Airport to Calgary Airport on Thursday, 10 September 2026.

Can I get a direct flight from Ontario International Airport to Calgary Airport?

No airlines currently offer direct flights between Ontario International Airport and Calgary Airport. Most routes have one or more stops.

How can I find the best flight deal to Calgary?

We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Calgary but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.

When is the best time to book flights to Calgary?

We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Calgary is around 40 days in advance, so don’t leave your flight to the last minute.

Which is the cheapest airline to fly from Ontario International Airport to Calgary with?

Currently, Frontier Airlines offers the cheapest flight tickets to Calgary.

Travelling from Ontario International Airport (ONT) to Calgary Airport (YYC): what you need to know

Calgary is one hour ahead of Ontario and is in the UTC-7 timezone.
Arrive at the airport on time so you don't miss your ONT to YYC flight. Be there at least two hours ahead for international flights and an hour early for domestic departures to avoid sprinting to your gate.
You'll likely experience longer queues in popular months like July. Arriving up to four hours ahead of an international flight and two hours for domestic departures is a wise move.
We make it simple to book a flight with a stopover. To see all your options for tickets from Ontario International Airport to Calgary Airport, uncheck 'Direct flights only.' Then, pick a flight offering a stop long enough to tour your chosen city. Top stopovers between ONT and YYC include:
- Seattle / Tacoma International Airport
- San Francisco International Airport
- Phoenix Sky Harbour Airport

How to find the cheapest flights from Ontario International Airport (ONT) to Calgary Airport (YYC)

The lowest price we've seen for a one-way Ontario International Airport to Calgary Airport flight is $284. A round-trip fare is currently $636. Depending on the availability when you book, these fares may change.
Don't leave everything to the last moment. You're more likely to get cheap tickets from ONT to YYC if you book ahead. Airlines often offer some great early bird deals.
If you can be flexible with your travel dates, use the 'Whole month' tool. It'll give you the lowest price in every month when looking for a flight from Ontario International Airport to Calgary Airport.
Stay on top of deals for cheap flights from ONT to YYC by creating a Price Alert. We'll send you an email or push notification on the app when a lower fare becomes available.
Tailor your trip with filters. Choose your arrival and departure times, total journey duration and airlines. You can also sort the results by 'Best,' 'Fastest' or 'Cheapest' flights from Ontario International Airport to Calgary Airport.

Handy information about Ontario International Airport (ONT)

ONT's address is 2900 E. Airport Drive.
83% of flights leaving Ontario International Airport touch down at their destination according to schedule. Given its strong on-time performance, disruptions are unlikely when taking off from ONT.
Ontario International Airport is about 10 kilometres from central Ontario. If you're driving, ride-sharing or catching a taxi from the centre, it'll take you 15 minutes or so to arrive, depending on the traffic.
Expect a trip time of around 45 minutes on public transport.
Need a handy hotel close to ONT? If you've booked an early flight from Ontario International Airport to Calgary Airport, these accommodation options will have you moments from your check-in counter:

Arriving at Calgary Airport (YYC)

If you're landing on a late Ontario International Airport to Calgary Airport flight, nothing tops the convenience of staying near the terminal. Grab your bags from the carousel and then be tucked up in bed not long after at one of these hotels near YYC:
Follow your own route with a Calgary Airport rental car. Pick up your wheels from Routes Car Rentals, Thrifty or Avis and venture far and wide through Calgary and beyond.
Lock in the best deal by booking your vehicle from Calgary Airport around four weeks ahead of your departure.

When to fly to Calgary Airport (YYC)

It's time to choose your trip dates for your flight from Ontario International Airport to Calgary Airport. July is the busiest month to visit Calgary. If you like a more low-key vibe, go in November.
The warmest month in Calgary is August, with the temperature ranging between 8ºC and 26ºC. Book your flights from Ontario International Airport to Calgary Airport in this month if you enjoy this type of weather.
February sees average temperatures of between -22ºC and 3ºC. Look for cheap tickets from ONT to YYC sometime around then if you want to travel when it's cooler.

Explore more of Canada

You've done Calgary, now it's time to explore other parts of Canada. Travel around 274 kilometres north to Edmonton to tick off its top attractions. From Rogers Place to Citadel Theatre and Muttart Conservatory, there's plenty to keep you busy.
Around 402 kilometres west of Calgary, Kelowna is another favourite stop in Canada. Experience major highlights starting with Okanagan Lake, The View Winery and Vineyard and Waterfront Park.