340 € Ottawa (YOWA) to Seattle (SEAA) Cheap Flights

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Flight deals from Ottawa to Seattle

Looking for a cheap last-minute deal or the best return flight from Ottawa to Seattle? If you want to travel next month, return fares start from 362 €. Find the lowest prices on one-way and return tickets right here.

Seattle.340 € per passenger.Departing Thu, 27 Aug, returning Fri, 4 Sep.Return flight with WestJet.Outbound indirect flight with WestJet, departs from Ottawa International on Thu, 27 Aug, arriving in Seattle / Tacoma International.Inbound indirect flight with WestJet, departs from Seattle / Tacoma International on Fri, 4 Sep, arriving in Ottawa International.Price includes taxes and charges.From 340 €, select.

Seattle.347 € per passenger.Departing Sat, 5 Sep, returning Tue, 8 Sep.Return flight with WestJet.Outbound indirect flight with WestJet, departs from Ottawa International on Sat, 5 Sep, arriving in Seattle / Tacoma International.Inbound indirect flight with WestJet, departs from Seattle / Tacoma International on Tue, 8 Sep, arriving in Ottawa International.Price includes taxes and charges.From 347 €, select.

Seattle.354 € per passenger.Departing Sat, 25 Jul, returning Fri, 31 Jul.Return flight with WestJet.Outbound indirect flight with WestJet, departs from Ottawa International on Sat, 25 Jul, arriving in Seattle / Tacoma International.Inbound indirect flight with WestJet, departs from Seattle / Tacoma International on Fri, 31 Jul, arriving in Ottawa International.Price includes taxes and charges.From 354 €, select.

Seattle.357 € per passenger.Departing Sat, 3 Oct, returning Fri, 9 Oct.Return flight with WestJet.Outbound indirect flight with WestJet, departs from Ottawa International on Sat, 3 Oct, arriving in Seattle / Tacoma International.Inbound indirect flight with WestJet, departs from Seattle / Tacoma International on Fri, 9 Oct, arriving in Ottawa International.Price includes taxes and charges.From 357 €, select.

Seattle.362 € per passenger.Departing Sat, 15 Aug, returning Sat, 22 Aug.Return flight with WestJet.Outbound indirect flight with WestJet, departs from Ottawa International on Sat, 15 Aug, arriving in Seattle / Tacoma International.Inbound indirect flight with WestJet, departs from Seattle / Tacoma International on Sat, 22 Aug, arriving in Ottawa International.Price includes taxes and charges.From 362 €, select.

Seattle.381 € per passenger.Departing Mon, 27 Jul, returning Sun, 9 Aug.Return flight with WestJet.Outbound indirect flight with WestJet, departs from Ottawa International on Mon, 27 Jul, arriving in Seattle / Tacoma International.Inbound indirect flight with WestJet, departs from Seattle / Tacoma International on Sun, 9 Aug, arriving in Ottawa International.Price includes taxes and charges.From 381 €, select.

Seattle.383 € per passenger.Departing Wed, 4 Nov, returning Mon, 9 Nov.Return flight with United.Outbound indirect flight with United, departs from Ottawa International on Wed, 4 Nov, arriving in Seattle / Tacoma International.Inbound indirect flight with United, departs from Seattle / Tacoma International on Mon, 9 Nov, arriving in Ottawa International.Price includes taxes and charges.From 383 €, select.

Seattle.392 € per passenger.Departing Sun, 20 Sep, returning Sat, 3 Oct.Return flight with WestJet.Outbound indirect flight with WestJet, departs from Ottawa International on Sun, 20 Sep, arriving in Seattle / Tacoma International.Inbound indirect flight with WestJet, departs from Seattle / Tacoma International on Sat, 3 Oct, arriving in Ottawa International.Price includes taxes and charges.From 392 €, select.

Seattle.452 € per passenger.Departing Thu, 10 Dec, returning Sat, 30 Jan.Return flight with United.Outbound indirect flight with United, departs from Ottawa International on Thu, 10 Dec, arriving in Seattle / Tacoma International.Inbound indirect flight with United, departs from Seattle / Tacoma International on Sat, 30 Jan, arriving in Ottawa International.Price includes taxes and charges.From 452 €, select.

Seattle.510 € per passenger.Departing Thu, 4 Mar, returning Thu, 11 Mar.Return flight with WestJet.Outbound indirect flight with WestJet, departs from Ottawa International on Thu, 4 Mar, arriving in Seattle / Tacoma International.Inbound indirect flight with WestJet, departs from Seattle / Tacoma International on Thu, 11 Mar, arriving in Ottawa International.Price includes taxes and charges.From 510 €, select.

Seattle.566 € per passenger.Departing Mon, 1 Mar, returning Thu, 29 Apr.Return flight with WestJet.Outbound indirect flight with WestJet, departs from Ottawa International on Mon, 1 Mar, arriving in Seattle / Tacoma International.Inbound indirect flight with WestJet, departs from Seattle / Tacoma International on Thu, 29 Apr, arriving in Ottawa International.Price includes taxes and charges.From 566 €, select.

Seattle.577 € per passenger.Departing Thu, 24 Dec, returning Sun, 28 Feb.Return flight with Air Canada.Outbound indirect flight with Air Canada, departs from Ottawa International on Thu, 24 Dec, arriving in Seattle / Tacoma International.Inbound indirect flight with Air Canada, departs from Seattle / Tacoma International on Sun, 28 Feb, arriving in Ottawa International.Price includes taxes and charges.From 577 €, select.

Find the cheapest month to fly from Ottawa to Seattle

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

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Alternative Ottawa to Seattle routes

Looking for the cheapest, fastest or easiest route from Ottawa to Seattle? You could fly into the following airports instead.

Ottawa to Seattle: Flight information

The things to know before you go.

Cheapest flight found	340 €
Cheapest month to fly	August

Finding cheap flights from Ottawa to Seattle: Frequently asked questions

How many airports are there in Seattle?

There are 4 airports in Seattle: Seattle Lake Union SPB, Seattle Boeing Fld, Seattle / Tacoma International, and Paine Field.

How much are return flights from Ottawa to Seattle?

The best price we found for a return flight from Ottawa to Seattle is 340 €. 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 Ottawa to Seattle?

Currently, there are no airlines that fly direct from Ottawa to Seattle. But we found flights with one or more stops from 340 €.

How many flights are there a week from Ottawa to Seattle?

As of July 2026, there are no flights flying from Ottawa to Seattle.

When is the cheapest time to fly from Ottawa to Seattle?

The cheapest month to fly from Ottawa to Seattle is usually August.

Which is the cheapest airport to fly into in Seattle?

If you're flying from Ottawa, the cheapest airport near Seattle is Seattle / Tacoma International – which is 19.5 km away from the centre of Seattle. We've found flights into this airport from 340 €.

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

After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Ottawa to Seattle on Thursday, 27 August 2026.

Can I get a direct flight from Ottawa to Seattle?

No airlines currently offer direct flights between Ottawa and Seattle. Most routes have one or more stops.

How can I get the best flight deal from Ottawa to Seattle?

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 Seattle 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 Seattle?

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

What’s the weather like in Seattle?

In July, the average temperature is usually around 17°C. August is typically the warmest month in Seattle, when it usually averages around 23°C. You can expect the least rain in July. The coldest month is December, with temperatures averaging 0°C. The rainiest month is November.

Which is the cheapest airline to fly from Ottawa to Seattle with?

The cheapest airline that flies to Seattle is WestJet .

Travelling from Ottawa to Seattle: what you need to know

Ottawa International Airport (YOW) is Ottawa's main airport. Check out your options for booking a flight from Ottawa to Seattle departing from here.
When choosing where to land in Seattle, Seattle / Tacoma International Airport (SEA) and Seattle Lake Union SPB Airport (LKE) are the primary gateways.
Seattle's timezone is UTC-8, which makes Seattle three hours behind Ottawa.
For a smooth journey, turn up at the airport two hours ahead of international flights and an hour before domestic departures. This will give you plenty of time to catch your Ottawa to Seattle flight.
During popular months like July, it's a good idea to get to the airport even earlier. Plan to arrive two hours before domestic departures and four hours ahead of international flights whenever you're travelling during high season in general.

How to find the cheapest flights from Ottawa to Seattle

Booking in advance is often the key to scoring a cheap Ottawa to Seattle flight. Airlines adjust prices based on demand, so the nearer your departure date, the more you'll likely pay.
The 'Whole month' search tool shows you the cheapest plane tickets from Ottawa to Seattle across the entire month. It's an easy way to snap up a bargain if your plans aren't set in stone.
Save time searching for cheap flights from Ottawa to Seattle by creating a Price Alert. We'll send you an email or notification on the app when a special offer becomes available.
Find a cheap Ottawa to Seattle flight with the help of our filters. Choose your ideal times, airlines and number of stops, then sort the results by 'Cheapest' for the best deals.

Flying from Ottawa

Ottawa International Airport (YOW)

YOW is around 11 kilometres from central Ottawa. If you're driving, ride-sharing or catching a taxi from the centre, it'll take 20 minutes or so to get there, depending on traffic. If you're using public transport, expect the travel time to be around 35 minutes.
After an easy start to your holiday? Stay near Ottawa International Airport. Whether you have an early flight from Ottawa to Seattle or just don't like being rushed, these hotels have you covered:
65% of flights taking off from Ottawa International Airport make it to their destination on schedule.
YOW is located at 50 Airport Road.

Arriving in Seattle

Seattle / Tacoma International Airport (SEA)

Seattle / Tacoma International Airport (SEA) to central Seattle takes around 25 minutes by car. The centre is roughly 19 kilometres away.
Getting to the centre on public transport will take you roughly 35 minutes.
The last thing you want is a lengthy journey to your hotel if you're getting in late on a flight from Ottawa to Seattle. Book one of these accommodation options near SEA instead:
Pick up a Seattle / Tacoma International Airport rental car and explore Seattle and beyond with your own wheels. Thrifty, Europcar and Budget are leading providers to choose from here.
Booking your vehicle from Seattle / Tacoma International Airport around one week ahead boosts your odds of scoring a great price.

Paine Field Airport (PAE)

Central Seattle is approximately 32 kilometres from Paine Field Airport (PAE). After your flight from Ottawa to Seattle has landed and you've made your way through the terminal, expect a drive of about 20 minutes.
Travelling by public transport will take approximately 40 minutes.
Hang the 'Do not disturb' sign on your door and unwind at a hotel near PAE. Here are a few options where you can kick back after your flight from Ottawa to Seattle:
Why wait around for public transport? A Paine Field Airport rental car lets you start exploring right away. Put on your favourite playlist and hit the highway with a set of wheels from Budget or Enterprise.
Usually, the sooner you book, the better the deals and choice of vehicles. Secure your ride from PAE once you know your travel dates.

Seattle Boeing Fld Airport (BFI)

Travel to the centre after your flight from Ottawa to Seattle has arrived. Central Seattle is around 11 kilometres from Seattle Boeing Fld Airport (BFI) and takes roughly 20 minutes to reach by car.
Public transport can take you there in around 35 minutes.
Be in the driver's seat of the next chapter of your journey with a Seattle Boeing Fld Airport rental car. Alamo, Budget and Avis make getting on the road smooth sailing.
Booking a couple of weeks in advance of your flight from Ottawa to Seattle is always a good idea. Along with better prices, you'll likely have a better variety of makes and models to choose from at BFI.

Best time to go to Seattle

July is the most popular month for flights from Ottawa to Seattle. To steer clear of the crowds, visit Seattle in March.
Lock in a Ottawa to Seattle ticket departing in August if you're eager to explore the city during its warmest month. Expect temperatures in Seattle to range from 12ºC (54ºF) to 28ºC (82ºF).
If you like travelling in cooler conditions, search for a cheap flight from Ottawa to Seattle in February when temperatures average between -1ºC (30ºF) and 11ºC (52ºF).

More about Seattle

Start your Seattle trip right by choosing the perfect place to stay. As soon as you've booked your flight from Ottawa to Seattle, browse our selection of accommodation options including:
All great journeys should include some sightseeing. Space Needle, Pike Place Fish Market and The Museum of Flight are essential stops on your Seattle itinerary.

Explore more of the United States

Seattle has plenty going for it, but there are so many other parts of the United States just waiting to be explored. About 241 kilometres south of Seattle, a visit to Portland will keep your itinerary packed. Check out popular attractions like Portland Japanese Garden, Peninsula Park Rose Garden and International Rose Test Garden.
Around 370 kilometres east of Seattle, Spokane is another favourite stop in the United States. Start your sightseeing at Riverside State Park, Spokane Falls (Upper Falls) and Cathedral of Our Lady of Lourdes.