Cheap flights from North America to Seattle from $43

In general, October is the cheapest month to fly from North America to Seattle. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $287. If you don’t want to visit Seattle in October, then you should wait until September to fly from North America, when ticket prices are also cheap, with an average price of $307.

On average, the least expensive day to fly to Seattle from North America is on a Wednesday. momondo users have found tickets for Wednesday departures for as low as $457. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Sunday is the most expensive day to depart from North America because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $531.

Flying to Seattle from North America in the evening is the least expensive time of day to depart. momondo users have found prices as low as $373 when looking at flights departing in the evening. Flights to Seattle are more costly at noon, with an average ticket price of $572. Departure times at noon fall within the peak daily travel times, which is why tickets can be more expensive.

Fly from Los Angeles to Seattle/Tacoma Intl for the best North America - Seattle/Tacoma Intl flight prices

You are more likely to see cheaper flights to Seattle from North America when booking weeks ahead of your departure date. In general, you can expect to find flights to Seattle for around $414 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Seattle from North America for as low as $344 on momondo.

There are 4 cabin classes available to choose from on North America to Seattle/Tacoma Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Delta, Frontier, and Southwest are the most popular carriers operating from North America to Seattle/Tacoma Intl

Alaska Airlines, Delta and Frontier are the top three most popular airlines that fly to Seattle from North America according to our data. Alaska Airlines is the first choice among our users, with 43% of people opting to fly with this airline when traveling to Seattle. Keep in mind that there are 10 different airlines that fly to Seattle on a routine basis, so you have a few additional options to choose from.

As of February 2026, there are 236 flights per day flying from North America to Seattle. The most common time of day flights depart is 7:00AM, with 44% of flights taking off at noon.

As of February 2026, there are 1,653 flights per week flying from North America to Seattle. The most common day of the week flights depart is Thu, with 26% of flights taking off on this day.