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$77+ Cheap flights from Seattle to Kansas City (SEA - MCI)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/20. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — MCI
Aug 22 — Aug 291
Sat 8/22
Sat 8/29
1 adult, Economy
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Find cheap flights from Seattle to Kansas City 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

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3. Compare prices and book

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Cheapflights Tip: The best prices from Seattle/Tacoma Intl to Kansas City are usually found in January or March, booked 31 days in advance, depart on a Thursday or Tuesday and return on a Thursday

Cheap flight deals from Seattle to Kansas City

Cheapest flights from Seattle to Kansas City
Explore the most affordable flight options available from Seattle to Kansas City. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 23, 2026.

This Expedia deal was found by Cheapflights users on 7/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/198:53 pm
SEA
-
MCI
1 stop12h 37m
Multiple Airlines
Wed 8/267:00 am
MCI
-
SEA
Nonstop3h 57m
Multiple Airlines
Deal found 7/22$322
This CheapOair deal was found by Cheapflights users on 7/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/117:06 pm
SEA
-
MCI
1 stop15h 54m
Frontier
Sun 8/161:45 pm
MCI
-
SEA
1 stop21h 19m
Frontier
Deal found 7/22$323
This Kiwi.com deal was found by Cheapflights users on 7/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/176:27 pm
SEA
-
MCI
Nonstop3h 32m
Multiple Airlines
Thu 8/202:05 pm
MCI
-
SEA
1 stop21h 14m
Multiple Airlines
Deal found 7/21$325
This Alaska Airlines deal was found by Cheapflights users on 7/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/198:14 am
SEA
-
MCI
Nonstop3h 38m
Alaska Airlines
Sat 8/227:00 am
MCI
-
SEA
Nonstop3h 57m
Alaska Airlines
Deal found 7/21$326
This Delta deal was found by Cheapflights users on 7/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/195:30 pm
SEA
-
MCI
Nonstop3h 32m
Delta
Sat 8/227:15 am
MCI
-
SEA
Nonstop3h 57m
Delta
Deal found 7/22$327
This Kiwi.com deal was found by Cheapflights users on 7/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/117:41 pm
SEA
-
MCI
2 stops19h 35m
Frontier
Mon 9/142:17 pm
MCI
-
SEA
1 stop12h 10m
Frontier
Deal found 7/21$330
This Alaska Airlines deal was found by Cheapflights users on 7/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/146:27 pm
SEA
-
MCI
Nonstop3h 32m
Alaska Airlines
Sat 9/262:53 pm
MCI
-
SEA
1 stop5h 58m
Alaska Airlines
Deal found 7/22$332
This Expedia deal was found by Cheapflights users on 7/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/196:27 pm
SEA
-
MCI
Nonstop3h 32m
Alaska Airlines
Wed 8/261:34 pm
MCI
-
SEA
Nonstop3h 55m
Alaska Airlines
Deal found 7/20$333
This CheapOair deal was found by Cheapflights users on 7/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/77:06 pm
SEA
-
MCI
1 stop15h 54m
Frontier
Sun 8/161:45 pm
MCI
-
SEA
1 stop25h 32m
Frontier
Deal found 7/18$334
This CheapOair deal was found by Cheapflights users on 7/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/176:27 pm
SEA
-
MCI
Nonstop3h 32m
Alaska Airlines
Sat 8/221:34 pm
MCI
-
SEA
Nonstop3h 55m
Alaska Airlines
Deal found 7/20$335
This Alaska Airlines deal was found by Cheapflights users on 7/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/306:27 pm
SEA
-
MCI
Nonstop3h 32m
Alaska Airlines
Tue 11/36:09 pm
MCI
-
SEA
1 stop6h 25m
Alaska Airlines
Deal found 7/19$336
This American Airlines deal was found by Cheapflights users on 7/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/53:08 pm
SEA
-
MCI
1 stop6h 36m
American Airlines
Sun 9/67:17 pm
MCI
-
SEA
1 stop7h 33m
American Airlines
Deal found 7/19$337

Find flight deals from Seattle to Kansas City

Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Kansas City (MCI). 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 July 23, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$322
(Expedia)

One-way from

$77
(Kiwi.com)

Popular in

July

Cheapest in

January

Average price

$491
Provider with most accurate pricing for Seattle/Tacoma Intl-Kansas City flight deals.
Search Deals
Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-Kansas City flights.
Search Deals
From Seattle/Tacoma Intl to Kansas City
Search Deals
One-way flight from Seattle/Tacoma Intl to Kansas City
Search Deals
Highest demand for flights based on searches. 15% potential increase in price ($71 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($11 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Seattle to Kansas City that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 23, 2026.
Use the filters below to find and compare flights from Seattle to Kansas City that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattleKansas City

SEA - MCI

SEAMCI

Seattle/Tacoma Intl

Wed 9/2

6:27 pm-11:59 pm

Nonstop3h 32m

Kansas City

Wed 9/9

2:53 pm-6:51 pm

1 stop5h 58m

$327

SeattleKansas City

SEA - MCI

SEAMCI

Seattle/Tacoma Intl

Fri 9/18

7:41 pm-1:22 pm

1 stop15h 41m

Kansas City

Mon 9/21

7:00 am-8:57 am

Nonstop3h 57m

$353

SeattleKansas City

SEA - MCI

SEAMCI

Seattle/Tacoma Intl

Mon 8/17

5:00 am-12:37 pm

1 stop5h 37m

Kansas City

Mon 8/24

5:08 pm-10:43 pm

1 stop7h 35m

$355

SeattleKansas City

SEA - MCI

SEAMCI

Seattle/Tacoma Intl

Tue 10/13

6:50 am-5:15 pm

2 stops8h 25m

Kansas City

Sat 10/17

9:20 am-1:55 pm

1 stop6h 35m

$356

SeattleKansas City

SEA - MCI

SEAMCI

Seattle/Tacoma Intl

Thu 10/1

11:10 am-9:20 pm

2 stops8h 10m

Kansas City

Mon 10/5

3:35 pm-12:35 am

2 stops11h 00m

$357

SeattleKansas City

SEA - MCI

SEAMCI

Seattle/Tacoma Intl

Sat 9/12

11:25 am-10:00 pm

1 stop8h 35m

Kansas City

Mon 9/14

6:20 am-12:50 pm

2 stops8h 30m

$360

SeattleKansas City

SEA - MCI

SEAMCI

Seattle/Tacoma Intl

Tue 10/6

7:20 am-5:18 pm

1 stop7h 58m

Kansas City

Wed 10/7

3:17 pm-5:20 pm

Nonstop4h 03m

$377

SeattleKansas City

SEA - MCI

SEAMCI

Seattle/Tacoma Intl

Tue 9/29

11:10 am-10:05 pm

2 stops8h 55m

Kansas City

Tue 10/6

11:25 am-7:50 pm

2 stops10h 25m

$377

SeattleKansas City

SEA - MCI

SEAMCI

Seattle/Tacoma Intl

Thu 9/17

1:55 pm-9:25 pm

1 stop5h 30m

Kansas City

Sun 9/20

7:10 am-2:00 pm

2 stops8h 50m

$382

SeattleKansas City

SEA - MCI

SEAMCI

Seattle/Tacoma Intl

Thu 9/24

11:05 pm-8:55 am

1 stop7h 50m

Kansas City

Sun 9/27

5:50 am-2:00 pm

2 stops10h 10m

$386

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/21

Showing 1-10 of 24 resultsSorted by cheapest first
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Compare providers for flights from Seattle to Kansas City

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Seattle to Kansas City in July.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust Score*3 stars
CheapTicketsDealPrice Accuracy1 starTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Seattle-Kansas City flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Seattle-Kansas City flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Seattle-Kansas City flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Seattle-Kansas City flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Seattle-Kansas City flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Seattle to Kansas City

Have a flexible travel schedule? Discover the best time to fly to Kansas City from Seattle 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 Seattle to Kansas City

How far ahead should I book a flight from Seattle to Kansas City?

To ensure you get the cheapest price possible for a flight from Seattle to Kansas City, you should look to book at least 30 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, January is the cheapest month in which you can book a flight from Seattle to Kansas City (average of $237). Flying from Seattle to Kansas City in July is currently the most expensive (average of $491). 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 SEA to MCI?

Find hourly flight availability from Seattle to Kansas City. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 23, 2026.

When flying from Seattle to Kansas City, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

How much does it cost to fly round-trip from Seattle to Kansas City?

The best insider tips for Seattle to Kansas City flights

AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your Seattle to Kansas City trip
Our travel experts
Matt Meltzer

Matt Meltzer

Expert on MCI

Matt Meltzer has been a travel writer for over a decade, covering U.S. domestic locations and hotels for Thrillist, Fifty Grande, Matador Network, Conde Nast Traveler, and other top publications. He's won multiple travel journalism awards from the Society of American Travel Writers and North American Travel Journalists Association, and currently resides in South Florida.

Read more
Brandon Schultz

Brandon Schultz

Expert on SEA

Brandon Schultz is an award-winning food and travel writer based in New York City. His work has appeared in Forbes, AAA, Thrillist, Travel + Leisure, and The Daily Meal, among many others, and he is the author of 6 books, including 3 cookbooks.

Read more

Reviews of airlines servicing Kansas City

Get insights into the airlines that provide service to Kansas City. 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 Kansas City. Reviews last updated July 23, 2026.
Get a feel of what it's like to fly with Southwest,Alaska Airlines, andDelta from Seattle to Kansas City by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,238 reviews

Boarding

8.1

Overall

8.0

Entertainment

7.5

Comfort

8.0

Crew

8.6

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
Southwest
8.0
Very good
4,238 reviews
Southwest
8.0
Very good
4,238 reviews

Boarding

8.1

Overall

8.0

Entertainment

7.5

Comfort

8.0

Crew

8.6

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
Alaska Airlines
7.9
Good
12,696 reviews
Southwest
8.0
Very good
4,238 reviews

Boarding

8.1

Overall

8.0

Entertainment

7.5

Comfort

8.0

Crew

8.6

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
Delta
7.8
Good
8,479 reviews
Southwest
8.0
Very good
4,238 reviews

Boarding

8.1

Overall

8.0

Entertainment

7.5

Comfort

8.0

Crew

8.6

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
American Airlines
7.1
Good
11,834 reviews
Southwest
8.0
Very good
4,238 reviews

Boarding

8.1

Overall

8.0

Entertainment

7.5

Comfort

8.0

Crew

8.6

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
Frontier
5.6
Fair
2,770 reviews
Southwest
8.0
Very good
4,238 reviews

Boarding

8.1

Overall

8.0

Entertainment

7.5

Comfort

8.0

Crew

8.6

Food

7.0

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

Related info for your journey

Find useful and relevant information for your journey from Seattle to Kansas City. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airports do I use to fly from Seattle to Kansas City?

    You will need to book a flight from Seattle/Tacoma Intl to Kansas City if you want to fly from Seattle to Kansas City. At least 7 different airlines have flights from Seattle/Tacoma Intl (SEA) to Kansas City (MCI) on a regular basis. There are 10 flights to Kansas City from the Seattle airport per day. If you manage to book one that is nonstop, then you can expect the flight time from SEA to MCI to be around 3h 30m.

  • How popular is this Seattle to Kansas City flight route?

    This flight path from Seattle/Tacoma Intl to Kansas City was viewed by 9 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • How long is the flight from Seattle to Kansas City?

    Departing from Seattle to Kansas City will take you 3h 32m. The distance between Seattle and Kansas City is about 1485 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines flying from Seattle to Kansas City round-trip?

    Flying on Frontier is currently your cheapest option to Kansas City, with prices starting at $135. Additional round-trip tickets that might be worth considering are offered by Hawaiian Airlines and Delta, with the lowest prices starting at $148 and $148, respectively. Frontier is priced at 64% lower than the current average price of a flight leaving 3 months from now.

  • What are the cheapest airlines to fly from Seattle to Kansas City one-way?

    To fly one-way, consider booking your trip with Southwest, which is currently one of the cheapest options available, starting at $89. Hawaiian Airlines flights start at $108 while deals on United Airlines start at $109 one-way.

  • What are the most reliable airlines from Seattle to Kansas City?

    No one likes to see their flight delayed. When booking a flight from Seattle to Kansas City consider choosing American Airlines (93%), Alaska Airlines (91%) or Qatar Airways (88%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Seattle to Kansas City?

    Looking at all options, your cheapest flight can be booked for $215. While the most popular route (Seattle/Tacoma Intl - Kansas City) can be booked for $307 on average, our data indicates $557 when flying from Seattle to Kansas City.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Seattle to Kansas City 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 Seattle to Kansas City?

    Currently, January is the cheapest month in which you can book a flight from Seattle to Kansas City (average of $237). Flying from Seattle to Kansas City in July is currently the most expensive (average of $491). 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 Kansas City?

Book flights to Kansas City if you plan to visit one of these locations
Lee's Summit
Kansas City
Independence
Overland Park
Warrensburg
Lenexa
North Kansas City
Lansing
Liberty
Lawrence
Shawnee
Olathe
Belton

Browse thousands of different options on Cheapflights for your next trip

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Top 7 airlines flying from Seattle to Kansas City

Discover the top 7 airlines that operate flights from Seattle to Kansas City. 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 July 23, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$135Average$282FlexibilityNo cancel feeOn-time62%
Hawaiian AirlinesCheapest$148Average$307FlexibilityNo cancel feeOn-time85%
DeltaCheapest$148Average$358FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$158Average$358FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$178Average$443FlexibilityNo cancel feeOn-time63%
Alaska AirlinesCheapest$199Average$424FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$296Average$479FlexibilityNo cancel feeOn-time71%

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