Cheap flights from Seattle to Kansas City from $121

In general, January is the cheapest month to fly from Seattle to Kansas City. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $237. If you’re not able to fly to Kansas City in January, then March is your next best option. Flight prices from Seattle to Kansas City during March average around $308.

The cheapest day to depart on your flight to Kansas City is on a Tuesday when prices can be found for as low as $387. This is often the case because there is less demand to fly during this day of the week. Flights from Seattle to Kansas City on a Monday will generally be more expensive and average around $493. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

Flying to Kansas City from Seattle in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $388 when looking at flights departing in the afternoon. Try not to purchase tickets at noon because they tend to be around $510. Of course, these prices can vary depending on the time of year and what airport you fly to.

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

You are more likely to see cheaper flights to Kansas City from Seattle when booking weeks ahead of your departure date. In general, you can expect to find flights to Kansas City for around $387 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Kansas City from Seattle for as low as $348 on momondo.

There are 4 cabin classes available to choose from on Seattle to Kansas City 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 15% on your flight if you consider stops on a Seattle to Kansas City flight.

As of August 2026, prices for Seattle to Kansas City flights are approximately 16% more expensive when compared to flights at the same time last year.

United Airlines, Southwest, and Delta are the most popular carriers operating from Seattle/Tacoma Intl to Kansas City

Alaska Airlines, Delta and American Airlines are the top three most popular airlines that fly to Kansas City from Seattle according to our data. Alaska Airlines is the first choice among our users, with 75% of people opting to fly with this airline when traveling to Kansas City. Keep in mind that there are 7 different airlines that fly to Kansas City on a routine basis, so you have a few additional options to choose from.

Denver (DEN) was the most common stop: 75% of momondo users choosing 1-stop flights on this route connected there.

Flights via Salt Lake City (SLC) offer the lowest average round-trip price of $396.

Flights connecting via Denver (DEN) have the shortest average one-way travel time: 5h 10m.

Denver (DEN) has the shortest average layover time for this route: 1h 55m.

As of August 2026, 5 flights take off from Seattle and land in Kansas City each day. The most common flight departure time for this route is 6:00PM, with 43% of daily flights taking off in the evening.

37 flights are operational weekly from Seattle to Kansas City as of August 2026. The most popular departure day for this route is Fri, with 30% of flights per week taking off on this day.