S$414 Cheap Flights from Ottawa to Seattle

View S$414 flight on Thu, 25 Dec, 2025Opens in a new window

Popular airlines from Ottawa International Airport (YOW) to Seattle-Tacoma International Airport (SEA)

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Cheap Flights from Ottawa to Seattle (YOW-SEA)

Prices were available within the past 7 days and start at S$414 for one-way flights and for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Find the cheapest month to fly from Ottawa (YOW) to Seattle (SEA)

June is typically the cheapest month to fly

From S$353 - S$618 per traveller.

Graph displaying average flight prices per month

Ottawa to Seattle route information
Origin airport
Macdonald-Cartier Intl.
Destination airport
Seattle - Tacoma Intl.
Distance
3510 km

Perfect flights from Ottawa to Seattle

Your Journey from Ottawa to Seattle

Start your unforgettable journey with Expedia. Our broad selection of flights from Ottawa to Seattle caters to every travel need. Whether you're yearning for a romantic escape, a solo adventure, or a cultural immersion, we've got you covered.
 

Choosing Your Ideal Flight

With Expedia, you have access to a wide range of airlines, including Air Canada, United, WestJet, Porter Airlines. Our selection of flights from Macdonald-Cartier Intl. to Seattle - Tacoma Intl. caters to every traveler's requirements, ensuring your journey aligns with your schedule. With options from 20 airlines, you're bound to find the perfect flight.
 

Maximizing Value with Ottawa to Seattle Flights

Experience the joy of finding cheap flights from Macdonald-Cartier Intl. to Seattle - Tacoma Intl. that fit your budget. Keep an eye out for our special deals and discounts, and check our flexible one-way fares from S$414 and roundtrip prices *.
 

Pre-Flight Essentials

Ensure a smooth journey from Ottawa to Seattle with Expedia. From information about check-in times and in-flight amenities to guidance on baggage policies, we provide all the essentials to prepare you for your flight.
 

Experience the Vibrant Seattle

Picture yourself stepping off the plane in Seattle and immersing yourself in the unique atmosphere of . From local markets to cultural festivals, each city offers its distinct charm. Make the most of your trip by exploring local attractions and indulging in the local cuisine. With Expedia, explore all this and more, tailored to your budget.
 

Added Convenience on Your Ottawa to Seattle Flight

Traveling with Expedia is more than just a flight. We offer details about in-flight amenities, baggage policies, and more to ensure a smooth and hassle-free journey. Choose from our variety of airlines and embark on a memorable journey from Ottawa to Seattle.
 

Beyond the Flight – Exploring Seattle

With Expedia, your adventure extends beyond the flight. Explore Seattle at your own pace by renting a car or booking a hotel. Discover hidden gems off the beaten path and create unforgettable memories.
 

Book Your Flight from Ottawa to Seattle with Confidence

Planning your next great adventure is a breeze with Expedia. Our user-friendly platform, unbeatable prices, and round-the-clock customer support make your travel experience seamless and stress-free. Embark on your journey from Ottawa to Seattle with confidence. Book your travel arrangements with Expedia today.
 
*Note: Prices may vary based on availability and are subject to change.

Frequently asked questions

How much is a flight from Ottawa International Airport to SEA?
Within the past 7 days on Expedia, for flights departing within the next year, the lowest price advertised for a round-trip flight from YOW to Seattle - Tacoma Intl. Airport (SEA) was . Fares this good don't hang around forever, so book yours today. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from YOW to Seattle - Tacoma Intl. Airport (SEA)?
When it comes to cancellation fees, every airline has its own set of terms and conditions. If you decide to cancel your holiday, head to our Customer Service Portal.
How do I find cheap flights from Macdonald-Cartier Intl. Airport (YOW) to Seattle - Tacoma Intl. Airport (SEA) that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for Macdonald-Cartier Intl. Airport (YOW) to Seattle - Tacoma Intl. Airport (SEA) flights, you'll see a "no change fees" filter for you to select.
How far is the flight from Ottawa Intl. Airport to Seattle - Tacoma Intl. Airport (SEA)?
The flight distance from Ottawa to SeaTac is 3,500 kilometres. Bring a drink, a few snacks and a good book to read. Keep yourself entertained and the time will fly by.
Which airlines fly direct from Ottawa International Airport to SEA?
If you want to travel straight from YOW to Seattle - Tacoma Intl. Airport (SEA), you'll need to book a flight with at least one stop. Unfortunately, there aren't any airlines that fly directly on this route.
Are Ottawa Intl. Airport to SEA flight tickets cheaper when they're purchased at the last minute?
Late planners can sometimes pick up a bargain, with some of the cheapest airfares from Ottawa International Airport to SEA cropping up a few weeks before the departure date. If you'd rather book ahead, Expedia compares and updates all the best flight deals frequently — as early as 12 months in advance in some cases. It depends on the carrier though, as not all airlines issue prices so far in advance.

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