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264 € Cheap Flights from Seattle to Ottawa

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      Travellers and cabin class, 1 Adult, Economy

      Compare Seattle to Ottawa flight deals

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

      Book the best Ottawa fare with no extra fees

      Flight deals from Seattle to Ottawa

      Looking for a cheap last-minute deal or the best return flight from Seattle to Ottawa? If you want to travel next month, return fares start from 264 €. Find the lowest prices on one-way and return tickets right here.
      Ottawa.264 € per passenger.Departing Wed, 16 Sep, returning Wed, 30 Sep.Return flight with WestJet.Outbound indirect flight with WestJet, departs from Seattle / Tacoma International on Wed, 16 Sep, arriving in Ottawa International.Inbound indirect flight with WestJet, departs from Ottawa International on Wed, 30 Sep, arriving in Seattle / Tacoma International.Price includes taxes and charges.From 264 €, select.
      Ottawa.307 € per passenger.Departing Thu, 1 Oct, returning Thu, 8 Oct.Return flight with WestJet.Outbound indirect flight with WestJet, departs from Seattle / Tacoma International on Thu, 1 Oct, arriving in Ottawa International.Inbound indirect flight with WestJet, departs from Ottawa International on Thu, 8 Oct, arriving in Seattle / Tacoma International.Price includes taxes and charges.From 307 €, select.
      Ottawa.312 € per passenger.Departing Fri, 25 Sep, returning Thu, 1 Oct.Return flight with WestJet.Outbound indirect flight with WestJet, departs from Seattle / Tacoma International on Fri, 25 Sep, arriving in Ottawa International.Inbound indirect flight with WestJet, departs from Ottawa International on Thu, 1 Oct, arriving in Seattle / Tacoma International.Price includes taxes and charges.From 312 €, select.
      Ottawa.380 € per passenger.Departing Tue, 17 Nov, returning Thu, 19 Nov.Return flight with Alaska Airlines and WestJet.Outbound indirect flight with Alaska Airlines, departs from Seattle / Tacoma International on Tue, 17 Nov, arriving in Ottawa International.Inbound indirect flight with WestJet, departs from Ottawa International on Thu, 19 Nov, arriving in Seattle / Tacoma International.Price includes taxes and charges.From 380 €, select.
      Ottawa.569 € per passenger.Departing Tue, 25 Aug, returning Tue, 29 Sep.Return flight with Frontier Airlines and WestJet.Outbound indirect flight with Frontier Airlines, departs from Seattle / Tacoma International on Tue, 25 Aug, arriving in Ottawa International.Inbound indirect flight with WestJet, departs from Ottawa International on Tue, 29 Sep, arriving in Seattle / Tacoma International.Price includes taxes and charges.From 569 €, select.
      Ottawa.680 € per passenger.Departing Thu, 31 Dec, returning Sun, 3 Jan.Return flight with Alaska Airlines and WestJet.Outbound indirect flight with Alaska Airlines, departs from Seattle / Tacoma International on Thu, 31 Dec, arriving in Ottawa International.Inbound indirect flight with WestJet, departs from Ottawa International on Sun, 3 Jan, arriving in Seattle / Tacoma International.Price includes taxes and charges.From 680 €, select.
      Ottawa.711 € per passenger.Departing Sun, 9 May, returning Mon, 17 May.Return flight with Alaska Airlines and Porter Airlines.Outbound indirect flight with Alaska Airlines, departs from Seattle / Tacoma International on Sun, 9 May, arriving in Ottawa International.Inbound indirect flight with Porter Airlines, departs from Ottawa International on Mon, 17 May, arriving in Seattle / Tacoma International.Price includes taxes and charges.From 711 €, select.
      Ottawa.842 € per passenger.Departing Sun, 20 Dec, returning Sun, 27 Dec.Return flight with WestJet.Outbound indirect flight with WestJet, departs from Seattle / Tacoma International on Sun, 20 Dec, arriving in Ottawa International.Inbound indirect flight with WestJet, departs from Ottawa International on Sun, 27 Dec, arriving in Seattle / Tacoma International.Price includes taxes and charges.From 842 €, select.

      Find the cheapest month to fly from Seattle to Ottawa

      We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Seattle to Ottawa flights are currently cheapest in September.
      Aug
      Find prices
      Sep
      from 264 €
      Oct
      from 307 €
      Nov
      from 380 €
      Dec
      from 842 €
      Jan
      Find prices
      Feb
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      Mar
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      Apr
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      May
      from 711 €
      Jun
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      Jul
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      Alternative Seattle to Ottawa routes

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

      Ottawa International

      11km from central Ottawa
      ClosestCheapest
      from 264 €
      Search flights

      Ottawa Gatineau

      15km from central Ottawa
      Search flights

      Seattle to Ottawa: Flight information

      The things to know before you go.
      Cheapest flight found264 €
      Cheapest month to flySeptember

      Finding cheap flights from Seattle to Ottawa: Frequently asked questions

      There are 2 airports in Ottawa: Ottawa International and Ottawa Gatineau.
      The best price we found for a return flight from Seattle to Ottawa is 264 €. 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.
      Currently, there are no airlines that fly direct from Seattle to Ottawa. But we found flights with one or more stops from 264 €.
      As of August 2026, there are no flights flying from Seattle to Ottawa.
      The cheapest month to fly from Seattle to Ottawa is usually September.
      If you're flying from Seattle, the cheapest airport near Ottawa is Ottawa International – which is 11.2 km away from the centre of Ottawa. We've found flights into this airport from 264 €.
      After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Seattle to Ottawa on Wednesday, 16 September 2026.
      No airlines currently offer direct flights between Seattle and Ottawa. Most routes have one or more stops.
      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 Ottawa 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.

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

      In August, the average temperature is usually around 19°C. July is typically the warmest month in Ottawa, when it usually averages around 25°C. You can expect the least rain in February. The coldest month is January, with temperatures averaging -16°C. The rainiest month is June.
      The cheapest airline that flies to Ottawa is WestJet .

      Travelling from Seattle to Ottawa: what you need to know

      • There are two main airports you can start your trip from in Seattle. Explore your options departing from Seattle / Tacoma International Airport (SEA) or Seattle Lake Union SPB Airport (LKE) when booking your flight from Seattle to Ottawa.

      • Touch down at Ottawa International Airport (YOW), the major arrival point in Ottawa.

      • The timezone in Ottawa is UTC-5, which is three hours ahead of Seattle.

      • Give yourself plenty of time to make your Seattle to Ottawa flight. A good rule of thumb is to arrive at least two hours before international departures and an hour ahead for domestic flights.

      • During popular months such as July, you'll want to get to the airport earlier than usual. Arrive two hours before a domestic departure and four hours ahead of international flights when you travel during a peak period in general.

      How to find the cheapest flights from Seattle to Ottawa

      • Booking early is often the key to finding a cheap Seattle to Ottawa flight. Fares tend to rise as seats fill up, so the nearer you get to departure, the more you'll likely pay.

      • If you can be flexible with your trip dates, try using the 'Whole month' search tool. It'll show you the cheapest price in every month when searching for your plane ticket from Seattle to Ottawa.

      • Locking in a cheap flight from Seattle to Ottawa couldn't be easier with Price Alerts. Simply create one of these automatic alerts and we'll get in touch as soon as a better deal is available.

      • Find a cheap Seattle to Ottawa flight with the help of our filters. Select your preferred departure time, duration and airlines, then sort the results by 'Cheapest' for the best deals.

      Flying from Seattle

      Seattle / Tacoma International Airport (SEA)

      • We make it simple to find a Seattle to Ottawa flight with a stopover. To see the options departing from Seattle / Tacoma International Airport, deselect 'Direct flights only.' Next, pick a flight that has a stop long enough to tour your chosen city. Popular stopovers include:

        • Toronto Pearson International Airport (YYZ)

        • Vancouver International Airport (YVR)

        • Calgary Airport (YYC)

      • SEA is around 19 kilometres from central Seattle. If you're driving, ride-sharing or catching a taxi from the centre, it'll take 25 minutes or so to get there, depending on traffic. If you're using public transport, expect the trip time to be around 35 minutes.

      • Want a leisurely start to your travels? Stay near Seattle / Tacoma International Airport. Whether you have an early flight from Seattle to Ottawa or just don't like being rushed, these hotels are just the thing:

      • 80% of flights departing from Seattle / Tacoma International Airport arrive at their destination according to schedule. With its strong on-time stats, delays are unlikely when jetting out of SEA.

      Arriving in Ottawa

      Ottawa International Airport (YOW)

      • Ottawa International Airport (YOW) is approximately 11 kilometres from central Ottawa. If you're catching a taxi or a ride-share, the drive takes around 20 minutes.

      • It usually takes 35 minutes to get there when travelling by public transport.

      • Reserve a hotel close to YOW if you're coming in on a late flight from Seattle to Ottawa. Choose one of these options and avoid the hassle of a long transfer:

      • Grab a Ottawa International Airport rental car and explore Ottawa and beyond with your own set of wheels. Routes Car Rentals, Alamo and Budget are well-known companies you can book with here.

      • Secure the lowest price by reserving your ride from Ottawa International Airport around two weeks ahead of your departure.

      • YOW is situated at 50 Airport Road.

      Ottawa Gatineau Airport (YND)

      • Ottawa Gatineau Airport (YND) is around 14 kilometres from central Ottawa. Explore your options for making your way into town after your flight from Seattle to Ottawa has touched down.

      • You'll find some comfortable places to call home for the night near YND. Settle in and get cosy after your Seattle to Ottawa flight at one of these perfectly located options:

      • Typically, the earlier you book, the better the prices and selection of vehicles. Secure your ride from YND as soon as you know your dates.

      Best time to go to Ottawa

      • November is the quietest month for flights from Seattle to Ottawa, while July is the busiest. Choose the ideal time to visit Ottawa based on whether you want a lively atmosphere or a more laid-back vibe.

      • Lock in a Seattle to Ottawa ticket departing in July if you want to explore the city during its warmest month. Expect temperatures in Ottawa to range from 14ºC (57ºF) to 28ºC (82ºF).

      • January has average temperatures of between -19ºC (-2ºF) and -2ºC (28ºF). Look for cheap flights from Seattle to Ottawa around that time if you'd rather travel in cooler conditions.

      More about Ottawa

      • Once you've booked your flight from Seattle to Ottawa, find a hotel that keeps you close to what you want to see. Make one of these accommodation options your base for exploring Ottawa:

      • All great journeys should include some sightseeing. Rideau Canal National Historic Site, Parliament Hill and Rideau Canal, Locks 1 - 8 - Ottawa are essential stops on your Ottawa itinerary.

      Explore more of Canada

      • Ottawa has its own special appeal, but there are so many other corners of Canada just waiting to be discovered. Around 354 kilometres southwest of Ottawa, a trip to Toronto will keep your itinerary busy. Don't miss top attractions like CN Tower, Royal Ontario Museum and Toronto Islands.

      • Around 161 kilometres east of Ottawa, Montreal is another essential stop in Canada. Start your sightseeing at Notre-Dame Basilica of Montreal, Montreal International Jazz Festival and Cirque du Soleil.

      Plan the rest of your trip from Seattle to Ottawa

      Prices shown on this page are estimated lowest prices only. Found in the last 12 days.