Looking for the price of a flight from Hamilton International to Seattle Lake Union?

There’s no fixed price — fares between Hamilton, Ontario and Seattle can vary a lot by day or time.

Select your dates to check current offers.

It’s often useful to check whether nearby airports offer better fares. Flying during less crowded periods also increases your chances of finding good deals.

Best airport options between Hamilton, Ontario and Seattle

If you're open to flying into or out of more than one airport, you’ll have more routes to compare.

• Airports in Hamilton, Ontario: Hamilton, Ontario is served by 4 airports - John C. Munro, Kitchener Lake, Lester B. Pearson, Toronto Island Airport.
• Airports in Seattle: In Seattle, 2 airports are available - Boeing Field, Lake Union.

Some airports offer extras like lounges, fast track, or self check-in — good to keep in mind. Comparing airports by services offered helps you balance cost and comfort.

Choose the right flight for your trip from Hamilton International to Seattle Lake Union

Jetcost helps you tailor your flight search based on what matters to you — flight length, budget, airline, or agency. Whether you prefer round-trip or one-way, direct or with stopovers, you’ll see options from the best airlines and travel agencies.

Other popular destinations

Flying to United States? Many users also explore: Las Vegas, Los Angeles, Miami, New York City, Orlando.

Looking for a specific airline? Select it directly in the filters to speed up your search. The search filters help you see only the options that match your needs.