How much is a flight from Seattle to Sarnia?

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

Pick a travel date to see today’s available fares.

Flying during the week can be more affordable, as weekend flights tend to be pricier. Also consider demand and availability: the last remaining seats often come at higher fares!

Best airport options between Seattle and Sarnia

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

• Airports in Seattle: Seattle is served by 2 airports - Boeing Field, Lake Union.
• Airports in Sarnia: Sarnia is the sole airport currently available.

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.

Flight filters for the route Seattle – Sarnia

Customize your search on Jetcost to focus only on flights that suit your needs. Whether you want a direct connection, specific airline, or shorter layover, filters help you find it faster.

Other popular destinations

Flights to Canada are often searched alongside: Calgary, Montreal, Quebec, Toronto, Vancouver.

The cheapest flights might leave at odd hours or arrive at less central airports — keep that in mind. If you travel often, you can always select your trusted airlines from the available options.