$288 Cheap Flights from Sudbury (YSB) to Seattle (SEA)

View $288 flight on Sun, Sep 21, 2025Opens in a new window

Popular airlines from Sudbury, ON (YSB-Greater Sudbury) to Seattle-Tacoma International Airport (SEA)

Cheap Flights from Sudbury to Seattle (YSB-SEA)

Prices were available within the past 7 days and start at $288 for one-way flights and for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Flights from Sudbury (YSB) to Seattle (SEA)
Origin airport
Greater Sudbury
Destination airport
Seattle - Tacoma Intl.
Distance
1931 mi

Sudbury to Seattle Flights

The cheapest times to fly from Sudbury to Seattle

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Sudbury to Seattle are during the month of . You can find some of the cheapest flights from Sudbury to Seattle with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Sudbury to Seattle

Sunday is one of the best days to book for cheap flights from Sudbury to Seattle: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Sudbury to Seattle

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Sudbury to Seattle in 2025. You can also book with separate airlines for your outbound and return journeys, from $288 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Sudbury to Seattle flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Sudbury to Seattle airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Greater Sudbury Airport (YSB) to Seattle - Tacoma Intl. Airport (SEA) cost?
Secure a cheap one-way flight from $288 or cheap return flight from Greater Sudbury Airport (YSB) to Seattle - Tacoma Intl. Airport (SEA) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from Greater Sudbury Airport (YSB) to Seattle - Tacoma Intl. Airport (SEA)?
Flying in is a great way to save, as it's the cheapest month for flights between YSB and SEA. You'll often find the lowest prices during off-peak months.
What is the cheapest airline that flies from Greater Sudbury Airport (YSB) to Seattle - Tacoma Intl. Airport (SEA)?
To find the cheapest airline that'll fly you from YSB to SEA, use Expedia's filter tool. Tailor your search based on what matters most to you, such as preferred carriers and cabin class. You can then sort your results by "Price (lowest to highest)" to see the most affordable options first.
How many flights per day from Greater Sudbury Airport (YSB) to Seattle - Tacoma Intl. Airport (SEA)?
There are no daily nonstop flights available from Greater Sudbury Airport (YSB) to Seattle - Tacoma Intl. Airport (SEA). But you can book flights with layovers. Filter your search results on Expedia to include one or two stops, and you'll be soaring above the clouds in no time at all.
What day of the week has the most flights from YSB to SEA?
Usually you'll find the greatest selection of flight options on a Friday. Tuesdays tend to be the quietest.* But this can vary depending on the time of year, carrier and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Greater Sudbury Airport (YSB) to Seattle - Tacoma Intl. Airport (SEA)?
To avoid possible delays on the Greater Sudbury Airport (YSB) to Seattle - Tacoma Intl. Airport (SEA) route, aim to fly before 3 PM. Departures after this hour have a 22% higher chance of being canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Greater Sudbury Airport (YSB) to Seattle - Tacoma Intl. Airport (SEA) last-minute?
Booking your ticket from YSB to SEA shortly before your journey is typically more expensive. However, if there's some wiggle room with your travel dates and times, you could snag a cheap last-minute fare.
Is it cheaper to book a YSB to SEA flight and hotel package?
Booking a YSB to SEA flight and hotel package tends to be cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your travels in one place. Pick from our impressive range of accommodations and then add activities, flights and car rentals to your booking. Bundle it all together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Greater Sudbury Airport (YSB) to Seattle - Tacoma Intl. Airport (SEA)?
In most instances, you can cancel or modify your YSB to SEA flight. However, additional charges may apply, especially if you booked more than 24 hours ago. Check your itinerary for the airline's fees and policies on flight changes, or if you need further details, head to our Customer Service portal.

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*Available to One Key members.