Cheap flights from Wisconsin to Seattle from $136

In general, February is the cheapest month to fly from Wisconsin to Seattle. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $93. If you don’t want to visit Seattle in February, then you should wait until April to fly from Wisconsin, when ticket prices are also cheap, with an average price of $106.

On average, the least expensive day to fly to Seattle from Wisconsin is on a Wednesday. momondo users have found tickets for Wednesday departures for as low as $407. 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 Wisconsin because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $518.

Flying to Seattle from Wisconsin in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $378 when looking at flights departing in the afternoon. Flights to Seattle are more costly at noon, with an average ticket price of $523. Departure times at noon fall within the peak daily travel times, which is why tickets can be more expensive.

Fly from Milwaukee-Mitchell to Seattle/Tacoma Intl for the best Wisconsin - Seattle/Tacoma Intl flight prices

You are more likely to see cheaper flights to Seattle from Wisconsin when booking weeks ahead of your departure date. In general, you can expect to find flights to Seattle for around $345 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Seattle from Wisconsin for as low as $281 on momondo.

Frontier, Southwest, and United Airlines are the most popular carriers operating from Wisconsin to Seattle/Tacoma Intl

Alaska Airlines, American Airlines and United Airlines are the top three most popular airlines that fly to Seattle from Wisconsin according to our data. Alaska Airlines is the first choice among our users, with 41% of people opting to fly with this airline when traveling to Seattle. Keep in mind that there are 7 different airlines that fly to Seattle on a routine basis, so you have a few additional options to choose from.

As of May 2026, there are 44 flights per day flying from Wisconsin to Seattle. The most common time of day flights depart is 7:00AM, with 66% of flights taking off at noon.

As of May 2026, there are 310 flights per week flying from Wisconsin to Seattle. The most common day of the week flights depart is Tue, with 23% of flights taking off on this day.