Are there any direct flights from St Louis Airport to Ontario?

Yes – direct flights currently operate from St Louis Airport to Toronto Pearson International Airport in Ontario.

What is the average price of a flight from St Louis Airport to Ontario?

We looked at all of the upcoming round-trip flights from St Louis Airport to Ontario we could find over the next 12 months. It looks like C$421 is the best price. This is good, compared to the average Ontario ticket price of C$853.

What is the cheapest month to fly from St Louis Airport to Ontario?

The cheapest month to fly from St Louis Airport to Toronto Pearson International Airport is currently June . The cheapest month to fly from St Louis Airport to Thunder Bay Airport is currently June . The cheapest month to fly from St Louis Airport to London Airport is currently June . And the cheapest month to fly from St Louis Airport to Ottawa International Airport is usually June .

On which upcoming date is it cheapest to fly from St Louis Airport to Ontario?

After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from St Louis Airport to Ontario on Monday, June 17, 2024 .

If I'm flying from St Louis Airport, where in Ontario is cheapest to fly to?

If you're flying from St Louis, the cheapest city in Ontario to fly into is Toronto. The cheapest airport serving Toronto at the moment is Toronto Pearson International.

How long is the flight from St Louis Airport to Ontario?

The average flight time between St Louis Airport and Ontario is 2 hours.

Cheap St Louis to Ontario Flights from C$146

Flight deals from St Louis Airport to Ontario

Looking for cheap flights from St Louis Airport to Ontario, or a last-minute trip? Find the cheapest prices on one-way and round-trip flights right here.

Toronto.C$421 per passenger.Departing Mon, Jun 17, returning Sun, Jun 23.Round-trip flight with Frontier Airlines and Flair Airlines.Outbound indirect flight with Frontier Airlines, departing from St Louis on Mon, Jun 17, arriving in Toronto Pearson International.Inbound indirect flight with Flair Airlines, departing from Toronto Pearson International on Sun, Jun 23, arriving in St Louis.Price includes taxes and charges.From C$421, select.

Ottawa.C$513 per passenger.Departing Tue, Jun 25, returning Mon, Jul 1.Round-trip flight with Frontier Airlines and Porter Airlines (Canada) Ltd.Outbound indirect flight with Frontier Airlines, departing from St Louis on Tue, Jun 25, arriving in Ottawa International.Inbound indirect flight with Porter Airlines (Canada) Ltd, departing from Ottawa International on Mon, Jul 1, arriving in St Louis.Price includes taxes and charges.From C$513, select.

Thunder Bay.C$678 per passenger.Departing Tue, Jun 25, returning Mon, Jul 1.Round-trip flight with Spirit Airlines and Porter Airlines (Canada) Ltd.Outbound indirect flight with Spirit Airlines, departing from St Louis on Tue, Jun 25, arriving in Thunder Bay.Inbound indirect flight with Porter Airlines (Canada) Ltd, departing from Thunder Bay on Mon, Jul 1, arriving in St Louis.Price includes taxes and charges.From C$678, select.

London.C$1,006 per passenger.Departing Sat, Jun 29, returning Fri, Jul 5.Round-trip flight with Air Canada.Outbound indirect flight with Air Canada, departing from St Louis on Sat, Jun 29, arriving in London.Inbound indirect flight with Air Canada, departing from London on Fri, Jul 5, arriving in St Louis.Price includes taxes and charges.From C$1,006, select.

Windsor.C$2,287 per passenger.Departing Wed, Jun 26, returning Thu, Jun 27.Round-trip flight with Air Canada.Outbound indirect flight with Air Canada, departing from St Louis on Wed, Jun 26, arriving in Windsor.Inbound indirect flight with Air Canada, departing from Windsor on Thu, Jun 27, arriving in St Louis.Price includes taxes and charges.From C$2,287, select.

Flying from St Louis Airport to Ontario

Arm yourself with these facts on the fly.

Cheapest flight found	C$146, Toronto
Cheapest month to fly	June
Average flight time	2 hrs
Average flights per week	46
Most popular airline	United

How to find cheap flights from St Louis Airport to Ontario

We've compared the best online travel agents and flight providers on the internet to find the cheapest plane tickets from St Louis Airport to Ontario. Other savvy travelers recently found round-trip flights from C$421 and one-way tickets from C$146. Ready to join them? Here are a few tips to help you do it the smart way.

Fly in June

The cheapest time to fly from St Louis Airport to Ontario is currently June.

Fly on a Tuesday

From our data, we can see that Tuesday seems to be the cheapest time to fly from St Louis Airport to Ontario.

Flex your dates for the best rates

If you’re flexible on your departure dates, you can use Skyscanner's whole month tool to find the cheapest day of the year to fly from St Louis Airport to anywhere you choose in Ontario.

Watch as flight prices go up and down

With Price Alerts, we'll let you know when flight prices from St Louis Airport to your chosen airport in Ontario go up or down so you can book when the time is just right.

Relax – these are fee-free plane tickets

With us, there are no added fees – the St Louis Airport to Ontario flight price you see when you search with us is what you pay to the provider.

Frequently asked questions

: Yes – direct flights currently operate from St Louis Airport to Toronto Pearson International Airport in Ontario.
: We looked at all of the upcoming round-trip flights from St Louis Airport to Ontario we could find over the next 12 months. It looks like C$421 is the best price. This is good, compared to the average Ontario ticket price of C$853.
: The cheapest month to fly from St Louis Airport to Toronto Pearson International Airport is currently June.
The cheapest month to fly from St Louis Airport to Thunder Bay Airport is currently June.
The cheapest month to fly from St Louis Airport to London Airport is currently June.
And the cheapest month to fly from St Louis Airport to Ottawa International Airport is usually June.
: After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from St Louis Airport to Ontario on Monday, June 17, 2024.
: If you're flying from St Louis, the cheapest city in Ontario to fly into is Toronto. The cheapest airport serving Toronto at the moment is Toronto Pearson International.
: The average flight time between St Louis Airport and Ontario is 2 hours.

Flights from St Louis Airport to Ontario