Cheap Flights from Seattle to Ontario from Rp 2.993.249 Return

Flight deals from Seattle to Ontario

Looking for cheap tickets from Seattle to Ontario, or a last-minute trip? Find the lowest prices on one-way and return tickets right here.

Toronto.Rp 2.993.249 per passenger.Departing Sat, 24 Jan, returning Sun, 1 Feb.Return flight with WestJet.Outbound indirect flight with WestJet, departs from Seattle / Tacoma International on Sat, 24 Jan, arriving in Toronto Pearson International.Inbound indirect flight with WestJet, departs from Toronto Pearson International on Sun, 1 Feb, arriving in Seattle / Tacoma International.Price includes taxes and charges.From Rp 2.993.249, select.

London.Rp 5.036.897 per passenger.Departing Fri, 30 Jan, returning Fri, 6 Feb.Return flight with Air Canada.Outbound indirect flight with Air Canada, departs from Seattle / Tacoma International on Fri, 30 Jan, arriving in London.Inbound indirect flight with Air Canada, departs from London on Fri, 6 Feb, arriving in Seattle / Tacoma International.Price includes taxes and charges.From Rp 5.036.897, select.

Ottawa.Rp 5.670.489 per passenger.Departing Mon, 2 Feb, returning Tue, 10 Feb.Return flight with WestJet.Outbound indirect flight with WestJet, departs from Seattle / Tacoma International on Mon, 2 Feb, arriving in Ottawa International.Inbound indirect flight with WestJet, departs from Ottawa International on Tue, 10 Feb, arriving in Seattle / Tacoma International.Price includes taxes and charges.From Rp 5.670.489, select.

Sault Ste Marie.Rp 15.377.374 per passenger.Departing Wed, 28 Jan, returning Wed, 4 Feb.Return flight with Air Canada.Outbound indirect flight with Air Canada, departs from Seattle / Tacoma International on Wed, 28 Jan, arriving in Sault Ste Marie.Inbound indirect flight with Air Canada, departs from Sault Ste Marie on Wed, 4 Feb, arriving in Seattle / Tacoma International.Price includes taxes and charges.From Rp 15.377.374, select.

Windsor.Rp 17.869.882 per passenger.Departing Wed, 13 May, returning Sun, 17 May.Return flight with Air Canada.Outbound indirect flight with Air Canada, departs from Seattle / Tacoma International on Wed, 13 May, arriving in Windsor.Inbound indirect flight with Air Canada, departs from Windsor on Sun, 17 May, arriving in Seattle / Tacoma International.Price includes taxes and charges.From Rp 17.869.882, select.

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Flying from Seattle to Ontario

Arm yourself with these facts on the fly.

Cheapest flight found	Rp 2.993.249
Cheapest month to fly	January
Average flight time	4 hrs, 42 mins
Cheapest airport to fly from	Seattle / Tacoma International
Most popular airline	Qatar Airways

How to find cheap flights from Seattle to Ontario

We've compared the best online travel agents and flight providers on the internet to find the cheapest plane tickets from Seattle to Ontario. Other savvy travellers recently found return flights from Rp 2.993.249 and one-way tickets from Rp 1.428.529 one-way. Ready to join them? Here are a few tips to help you do it the smart way.

Fly from Seattle / Tacoma International into Toronto Pearson International

At the moment, the lowest priced flight tickets to Ontario are from Seattle / Tacoma International Airport to Toronto Pearson International Airport.

Fly in January

We crunched the flight calendar and found the cheapest time to fly from Seattle to Ontario is currently January.

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 Seattle to anywhere you choose in Ontario.

Watch as fares rise and fall

With Price Alerts, we'll let you know when flight prices from Seattle to Ontario go up or down so you can book when the time is just right.

Relax – these are fee-free flight tickets

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

Frequently asked questions

What's the average Seattle to Ontario flight price?

We looked at all of the upcoming return flights from Seattle to Ontario we could find over the next 12 months. It looks like Rp 2.993.249 is the best price. This is good, compared to the average Ontario ticket price of Rp 9.389.578.

What is the cheapest month to fly from Seattle to Ontario?

The cheapest month to fly from Seattle to Ottawa International Airport is usually February. The cheapest month to fly from Seattle to Toronto Pearson International Airport is usually January. The cheapest month to fly from Seattle to Windsor Airport is usually May. And the cheapest month to fly from Seattle to London Airport is usually January.

Which upcoming date is cheapest to fly from Seattle to Ontario on?

After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Seattle to Ontario on Saturday, 24 January 2026.

Are there any direct flights from Seattle to Ontario?

Seattle / Tacoma International Airport offers direct flights to Ontario.

If I'm flying from Seattle, where in Ontario is cheapest to fly into?

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