Cheap flights from Seattle to Milwaukee from $89

The cheapest month to fly to Milwaukee from Seattle is in January. Flight prices, which tend to average around $257, are often lower during this time because this is during the off-season. The month of February is another great option to travel to Milwaukee, with average flight prices from Seattle averaging around $267.

According to our data, Wednesday is the cheapest day to fly to Milwaukee from Seattle. The lowest ticket price found for a Wednesday departure recently was $347. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. Flights from Seattle to Milwaukee on a Monday will generally be more expensive and average around $558. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

In the afternoon is the cheapest time of day to fly from Seattle to Milwaukee when you can find flight prices for as low as $391. Flying to Milwaukee in the afternoon is an ideal time because this is during off-peak travel hours. In the morning is when there is more demand to fly to Milwaukee, so prices are often more expensive at around $421 per ticket.

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

You are more likely to see cheaper flights to Milwaukee from Seattle when booking weeks ahead of your departure date. In general, you can expect to find flights to Milwaukee for around $359 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Milwaukee from Seattle for as low as $288 on momondo.

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

You could potentially save up to 3% on your flight if you consider stops on a Seattle to Milwaukee flight.

As of March 2026, prices for Seattle to Milwaukee flights are approximately 8% cheaper when compared to flights at the same time last year.

United Airlines, Delta, and Alaska Airlines are the most popular carriers operating from Seattle/Tacoma Intl to Milwaukee-Mitchell

Alaska Airlines, Delta and American Airlines are the top three most popular airlines that fly to Milwaukee from Seattle according to our data. Alaska Airlines is the first choice among our users, with 40% of people opting to fly with this airline when traveling to Milwaukee. Keep in mind that there are 7 different airlines that fly to Milwaukee on a routine basis, so you have a few additional options to choose from.

As of March 2026, 2 flights take off from Seattle and land in Milwaukee each day. The most common flight departure time for this route is 8:00AM, with 100% of daily flights taking off at noon.

20 flights are operational weekly from Seattle to Milwaukee as of March 2026. The most popular departure day for this route is Mon, with 15% of flights per week taking off on this day.