How long is the flight from Sudbury, Ontario to Seattle?

Airlines like Air Canada and United Airlines fly from Sudbury, Ontario to Seattle in about 9h 39m. The time it takes to get you to your destination can typically vary by up to 1h 52m. The distance from Sudbury, Ontario to Seattle is about 3108 km. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

In terms of precipitation, rainfall in Seattle ranges from 18.0 - 168.0 mm per month. November is typically the wettest month, when rainfall can reach 168.0 mm. July is typically the driest time to visit Seattle when rainfall is around 18.0 mm.

If weather is an important factor for your trip to Seattle, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 19.0 C. Travellers hoping to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 5.0 C).

What is the cheapest time of day to fly from YSB to SEA?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Sudbury, Ontario to Seattle as you normally would.

Can I find deals for flights from Sudbury to Seattle that include hotel bookings?

Yes. In addition to deals on Sudbury to Seattle flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from Sudbury to Seattle?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Sudbury to Seattle.

Can I find deals for business class flights from Sudbury to Seattle?

Yes. Cheapflights offers flight deals from Sudbury to Seattle by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

C$ 531+ Cheap Flights from Sudbury, ON to Seattle

Cheap flight deals from Sudbury to Seattle

Enter your travel dates to find the best prices.

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Cheapest flights from Sudbury to Seattle
Explore the most affordable flight options available from Sudbury to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 9 September 2026.

Sun 4/102:25 p.m. -

1 stop9h 39m

Sun 11/107:15 p.m. -

2 stops10h 45m

Deal found 5/9C$ 920

Sun 4/102:25 p.m. -

2 stops11h 31m

Sun 11/105:05 p.m. -

3 stops23h 22m

Deal found 5/9C$ 1,156

Find flight deals from Sudbury to Seattle

Round-trip from	C$ 920
One-way from	C$ 531

Air Canada
4/10-11/10
3 total stops
20h 24m total
Sudbury to Seattle

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Air Canada
19/10-31/12
2 total stops
17h 00m total
Sudbury to Seattle

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

SudburySeattle

YSB Sudbury - SEA Seattle/Tacoma Intl

YSBSEA

Sudbury

Mon 19/10

2:25 p.m.-9:04 p.m.

1 stop9h 39m

Seattle/Tacoma Intl

Wed 31/12

12:00 a.m.-3:00 a.m.

Nonstop0h 00m

C$ 559

SudburySeattle

YSB Sudbury - SEA Seattle/Tacoma Intl

YSBSEA

Sudbury

Mon 19/10

8:05 p.m.-8:37 p.m.

3 stops27h 32m

Seattle/Tacoma Intl

Wed 31/12

12:00 a.m.-3:00 a.m.

Nonstop0h 00m

C$ 687

SudburySeattle

YSB Sudbury - SEA Seattle/Tacoma Intl

YSBSEA

Sudbury

Sun 4/10

2:25 p.m.-9:04 p.m.

1 stop9h 39m

Seattle/Tacoma Intl

Sun 11/10

7:15 p.m.-9:00 a.m.

2 stops10h 45m

C$ 920

SudburySeattle

YSB Sudbury - SEA Seattle/Tacoma Intl

YSBSEA

Sudbury

Sun 4/10

2:25 p.m.-10:56 p.m.

2 stops11h 31m

Seattle/Tacoma Intl

Sun 11/10

5:05 p.m.-7:27 p.m.

3 stops23h 22m

C$ 1,156

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/9

Sorted by cheapest first

Best time to book a flight from Sudbury to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from Sudbury with our price prediction graph.

YSB-SEA

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Related info for your journey

How long is the flight from Sudbury, Ontario to Seattle?
Airlines like Air Canada and United Airlines fly from Sudbury, Ontario to Seattle in about 9h 39m. The time it takes to get you to your destination can typically vary by up to 1h 52m. The distance from Sudbury, Ontario to Seattle is about 3108 km. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.
Can I find deals for flights from Sudbury to Seattle that include hotel bookings?
Yes. In addition to deals on Sudbury to Seattle flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Sudbury to Seattle?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Sudbury to Seattle.
Can I find deals for business class flights from Sudbury to Seattle?
Yes. Cheapflights offers flight deals from Sudbury to Seattle by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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SeaTac

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Tukwila

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Kirkland

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Deals for Sudbury to Seattle flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

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It’s simple! Cheapflights, which is free to use for everyone, saves millions of users time and money every year by helping them find the cheapest and most suitable flights from Sudbury to Seattle.

Can Cheapflights find flights from Sudbury to Seattle with no change fees?

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Can Cheapflights notify me if prices for flights from Sudbury to Seattle become cheaper?

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Cheap flights from Sudbury, ON to Seattle from C$ 531

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 19/10. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Sudbury to Seattle

Cheapest flights from Sudbury to SeattleExplore the most affordable flight options available from Sudbury to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 9 September 2026.

Explore the most affordable flight options available from Sudbury to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 9 September 2026.

Best flights from Sudbury to SeattleDiscover carefully curated flight deals from Sudbury to Seattle that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 9 September 2026.

Discover carefully curated flight deals from Sudbury to Seattle that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 9 September 2026.

Last-minute flights from Sudbury to SeattleDiscover last-minute flight deals from Sudbury to Seattle. Data last updated 9 September 2026 and is based on user searches.

Discover last-minute flight deals from Sudbury to Seattle. Data last updated 9 September 2026 and is based on user searches.

One-way flights from Sudbury to SeattleSearch for one-way flight options from Sudbury to Seattle. Find affordable one-way fares based on user searches. Data last updated 9 September 2026.

Search for one-way flight options from Sudbury to Seattle. Find affordable one-way fares based on user searches. Data last updated 9 September 2026.

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Best time to book a flight from Sudbury to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from Sudbury with our price prediction graph.

Related info for your journey

How long is the flight from Sudbury, Ontario to Seattle?

Can I find deals for flights from Sudbury to Seattle that include hotel bookings?

How can I find direct flights from Sudbury to Seattle?

Can I find deals for business class flights from Sudbury to Seattle?

Travelling to a place near Seattle?

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Sudbury to Seattle

See prices for flight routes from nearby airports that may be better suited for you.

Complete your trip

Complete your trip to Seattle by adding a car rental and/or hotel reservation to your travel itinerary.

Direct flights to Washington

Book a non-stop flight to one of these other cities located in Washington.

Search flights from Sudbury to Seattle by cabin class

Find flights from Sudbury to Seattle, based on your preferred cabin class, be it economy, premium economy, business, or first class.

Sudbury and Seattle flights

Browse other Sudbury and Seattle flight options. Last updated on 9 September 2026.

Other flights from Sudbury

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Other flights to Seattle

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How does Cheapflights help users find flights from Sudbury to Seattle?

Why should you use Cheapflights to find cheap flight tickets from Sudbury to Seattle?

Can Cheapflights find flights from Sudbury to Seattle with no change fees?

Can Cheapflights notify me if prices for flights from Sudbury to Seattle become cheaper?

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Cheapest flights from Sudbury to Seattle
Explore the most affordable flight options available from Sudbury to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 9 September 2026.

Best flights from Sudbury to Seattle
Discover carefully curated flight deals from Sudbury to Seattle that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated 9 September 2026.

Last-minute flights from Sudbury to Seattle
Discover last-minute flight deals from Sudbury to Seattle. Data last updated 9 September 2026 and is based on user searches.

One-way flights from Sudbury to Seattle
Search for one-way flight options from Sudbury to Seattle. Find affordable one-way fares based on user searches. Data last updated 9 September 2026.