Cheap flights from Seattle to Ottawa from $151
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to Ottawa departing on 10/5. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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How to get the cheapest flight ticket from Seattle to Ottawa
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the cheapest month to fly to Ottawa?
In general, September is the cheapest month to fly from Seattle to Ottawa. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $405. The month of August is another great option to travel to Ottawa, with average flight prices from Seattle averaging around $431.
What is the cheapest day to depart on your flight to Ottawa?
The cheapest day to depart from Seattle to Ottawa is on a Thursday. Travelers who choose to depart for Ottawa on a Thursday will often find tickets for as low as $461. Be sure to avoid booking your departure on a Sunday as prices are generally higher than usual. According to our data, the average ticket price to Ottawa on Sunday is $627.
What is the cheapest time of day to depart on your flight to Ottawa?
In the afternoon is the cheapest time of day to fly from Seattle to Ottawa when you can find flight prices for as low as $384. Flying to Ottawa in the afternoon is an ideal time because this is during off-peak travel hours. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are $559 on average. Flights to Ottawa from Seattle in the morning are generally more expensive because this time of day is more convenient for travelers’ schedules.
How far in advance should I book a flight to Ottawa?
You are more likely to see cheaper flights to Ottawa from Seattle when booking 26 weeks ahead of your departure date. In general, you can expect to find flights to Ottawa for around $505 when searching 26 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Ottawa from Seattle for as low as $268 on momondo.
What is the cheapest airline that flies from Seattle/Tacoma Intl to Ottawa?
WestJet, Air Canada, and United Airlines are the most popular carriers operating from Seattle/Tacoma Intl to Ottawa
What airlines fly to Ottawa?
Air Canada, United Airlines and WestJet are the top three most popular airlines that fly to Ottawa from Seattle according to our data. Air Canada is the first choice among our users, with 68% of people opting to fly with this airline when traveling to Ottawa. Keep in mind that there are 5 different airlines that fly to Ottawa on a routine basis, so you have a few additional options to choose from.
When to book flights from Seattle to Ottawa
Cheap Seattle to Ottawa (SEA to YOW) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Seattle to Ottawa
How far is Seattle/Tacoma Intl to Ottawa by plane?
Seattle/Tacoma Intl and Ottawa are 2187.8 mi apart from one another. 6h 59m is a normal flight duration for this route.
When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Ottawa Airport?
Prices for flights from Seattle/Tacoma Intl Airport to Ottawa Airport are updated daily.
How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to Ottawa Airport?
The number of operators available for flights from Seattle/Tacoma Intl Airport to Ottawa Airport is 3 as of June 2025.
How old do you have to be to fly from Seattle/Tacoma Intl Airport to Ottawa Airport?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Seattle/Tacoma Intl Airport to Ottawa Airport.
What documentation or ID do you need to fly to Ottawa Airport?
The required travel and health documents for your Ottawa Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Ottawa Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular airline from Seattle to Ottawa?
momondo data reveals that the most frequently booked airline on the route from Seattle to Ottawa is Air Canada, representing 68% of all bookings. The subsequent popular airlines are WestJet at 18% and United Airlines at 14%.
Best airlines flying from Seattle to Ottawa
Compare and see reviews for airlines that fly from Seattle to Ottawa with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $244 | Free Cancellation | Rating 7.1 9,531 reviews | |||
| PriceFrom $282 | Free Cancellation | Rating 7.4 8,790 reviews | |||
| PriceFrom $297 | Free Cancellation | Rating 7.2 2,868 reviews |
Traveling to a place near Ottawa?
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Why should I use momondo to find a flight deal from Seattle to Ottawa?
We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Seattle to Ottawa for you.
Can I find flights from Seattle to Ottawa with flexible booking policies on momondo?
Flights from Seattle to Ottawa with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.
How can momondo help me find flights from Seattle to Ottawa?
momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Seattle to Ottawa.
I’m not ready to book a flight from Seattle to Ottawa right now. Can momondo alert me if prices change?
If you are not ready to book a flight from Seattle to Ottawa now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Ottawa and let you know when they change.