Cheap flights from Kansas City to Seattle from $66

In general, February is the cheapest month to fly from Kansas City to Seattle. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $238. If you don’t want to visit Seattle in February, then you should wait until January to fly from Kansas City, when ticket prices are also cheap, with an average price of $248.

On average, the least expensive day to fly to Seattle from Kansas City is on a Thursday. momondo users have found tickets for Thursday departures for as low as $473. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Monday is the most expensive day to depart from Kansas City because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $674.

Flying to Seattle from Kansas City in the evening is the least expensive time of day to depart. momondo users have found prices as low as $459 when looking at flights departing in the evening. Flights to Seattle are more costly in the morning, with an average ticket price of $586. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

Fly from Kansas City to Seattle/Tacoma Intl for the best Kansas City - Seattle/Tacoma Intl flight prices

You are more likely to see cheaper flights to Seattle from Kansas City when booking weeks ahead of your departure date. In general, you can expect to find flights to Seattle for around $323 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Seattle from Kansas City for as low as $270 on momondo.

There are 4 cabin classes available to choose from on Kansas City 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.

You could potentially save up to 4% on your flight if you consider stops on a Kansas City to Seattle flight.

As of February 2026, prices for Kansas City to Seattle flights are approximately 57% more expensive when compared to flights at the same time last year.

Delta is the most popular carrier operating from Kansas City to Seattle/Tacoma Intl

Alaska Airlines, Delta and Hawaiian Airlines are the top three most popular airlines that fly to Seattle from Kansas City according to our data. Alaska Airlines is the first choice among our users, with 54% of people opting to fly with this airline when traveling to Seattle. Keep in mind that there are 8 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 7 flights per day flying from Kansas City to Seattle. The most common time of day flights depart is 7:00AM, with 51% of flights taking off in the afternoon.

The number of flights available between Kansas City and Seattle is 51 per week as of February 2026. The most frequent departure day is Wed, with 18% of weekly flights leaving on this day.