Seattle

Cheap flights from Kansas City to Seattle (MKC - SEA)

MKC — SEA
Aug 24 — Aug 311
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Kansas City to Seattle with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Kansas City to Seattle

Discover tips and strategies to find the most affordable flight options for your journey from Kansas City (MKC) to Seattle (SEA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated August 19, 2025.

Popular in

July

Cheapest in

January

Average price

$357

Good round-trip deal

$313 or less

Good one-way deal

$118 or less
Highest demand for flights based on searches. 16% potential increase in price ($64 potential increase over avg. RT price).
Cheapest flight prices on average. 2% potential price decrease ($8 potential savings vs. average RT price).
Average for round-trip flights in August 2025
Price to beat on a round-trip flight from Kansas City Downtown to Seattle/Tacoma Intl.
Price to beat on a one-way flight from Kansas City Downtown to Seattle/Tacoma Intl.

Best time to book a flight from Kansas City to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from Kansas City with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Kansas City to Seattle

What is the cheapest month to book a flight from Kansas City to Seattle?

Currently, January is the cheapest month in which you can book a flight from Kansas City to Seattle (average of $238). Flying from Kansas City to Seattle in June is currently the most expensive (average of $389). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from MKC to SEA?

Find hourly flight availability from Kansas City to Seattle. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 19, 2025.

One of the essential ways to save on airfare from Kansas City to Seattle is to remain as flexible as possible. Flights that are in the afternoon tend to be the most expensive. A flight in the evening could potentially save you up to 22% on airfare.

Reviews of airlines servicing Seattle

Get insights into the airlines that provide service to Seattle. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Seattle. Reviews last updated August 19, 2025.
See what other customers who have flown with Alaska Airlines from Kansas City to Seattle have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Boarding

8.1

Comfort

7.8

Entertainment

7.0

Food

7.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why

Boarding

8.1

Comfort

7.8

Entertainment

7.0

Food

7.1

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why

Related info for your journey

Find useful and relevant information for your journey from Kansas City to Seattle. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
  • What is the cheapest airline to fly from Kansas City to Seattle round-trip?

    Currently priced at $276, Alaska Airlines will fly you from Kansas City to Seattle and back. In addition to Alaska Airlines, many other airlines offer competitively priced options for your trip.

  • Can I find deals for flights from Kansas City to Seattle that include hotel bookings?

    Yes. In addition to deals on Kansas City to Seattle flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Kansas City to Seattle?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Kansas City to Seattle.

  • Can I find deals for business class flights from Kansas City to Seattle?

    Yes. Cheapflights offers flight deals from Kansas City to Seattle by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Kansas City to Seattle?

    Currently, January is the cheapest month in which you can book a flight from Kansas City to Seattle (average of $238). Flying from Kansas City to Seattle in June is currently the most expensive (average of $389). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
SeaTac
Tukwila
Tacoma
Lakewood
Lacey
Ocean Shores
Lynnwood
Leavenworth
Renton
Olympia
Kent
Cle Elum
Puyallup
Chehalis
Kirkland
Issaquah
Aberdeen
Shoreline
Federal Way
Shelton

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top airline flying from Kansas City to Seattle

Discover the top airline that operate flights from Kansas City to Seattle. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated August 19, 2025.
AirlineCheapestAverageFlexibilityOn-time
Alaska AirlinesCheapest$276Average$431FlexibilityNo cancel feeOn-time75%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.