Cheap Flight Tickets from Kansas City (MCI) to Seattle (SEA), Starting at $403

Good to Know: Cheapest and Fastest MCI - SEA Flights

Useful information for finding best airline tickets from Kansas City International to Seattle Tacoma International on your next trip.

Cheapest Round Trip Flight

$403

WN Southwest Airlines • 1 stop • 10h

Sep 18 – Sep 26

The cheapest round trip flight from Kansas City to Seattle (MCI-SEA-MCI) is currently $403

🔍 Search Flights

Cheapest Direct Flight

$448

AA American Airlines • nonstop • 5h 57m

Sep 18

The cheapest nonstop flight from Kansas City to Seattle (MCI-SEA) is currently $448

🔍 Search Flights

Fastest Flight

5h 51m

The fastest nonstop flight from Kansas City to Seattle (MCI-SEA) takes 5h 51m

Top Airlines Flying from Kansas City to Seattle

Southwest Airlines-WN

Southwest Airlines

Delta Airline, DL

Delta Airlines

United Airlines, UA

United Airlines

American Airlines, AA

American Airlines

Alaska Airlines -AS

Alaska Airlines

Latest Flight Deals from Kansas City (MCI) to Seattle (SEA)

Compare and book low fare round-trip air tickets from Kansas City to Seattle. Ideal for travelers with confirmed return itineraries.

Sep 18 - Sep 26, Economy
WN
Kansas City → Seattle
10h
7:00 PM - 11:00 PM • 1 stop
WN
Kansas City → Seattle
8h 45m
12:40 PM - 8:05 PM • 1 stop
$403
Southwest Airlines
Sep 18 - Sep 26, Economy
WN
Kansas City → Seattle
10h 10m
10:45 AM - 2:55 PM • 1 stop
WN
Kansas City → Seattle
10h 20m
6:50 AM - 3:10 PM • 1 stop
$403
Southwest Airlines
Sep 18 - Sep 26, Economy
WN
Kansas City → Seattle
9h 15m
4:55 PM - 8:50 PM • 1 stop
WN
Kansas City → Seattle
8h 20m
6:50 AM - 1:50 PM • 1 stop
$403
Southwest Airlines
Sep 18 - Sep 26, Economy
WN
Kansas City → Seattle
10h 10m
1:25 PM - 5:35 PM • 1 stop
WN
Kansas City → Seattle
8h 20m
6:50 AM - 1:50 PM • 1 stop
$403
Southwest Airlines
Sep 18 - Sep 26, Economy
WN
Kansas City → Seattle
10h 10m
2:40 PM - 6:50 PM • 1 stop
WN
Kansas City → Seattle
10h 20m
6:50 AM - 3:10 PM • 1 stop
$403
Southwest Airlines
Sep 18 - Sep 26, Economy
WN
Kansas City → Seattle
9h 5m
7:25 AM - 11:10 AM • 1 stop
WN
Kansas City → Seattle
8h 45m
12:40 PM - 8:05 PM • 1 stop
$403
Southwest Airlines

Fly from Kansas City to Seattle with the Best Airfare Deals on FareLeaders

Looking for a cheap last-minute deal or the best round-trip flight from Kansas City to Seattle? Find the biggest savings on one-way and round-trip tickets right here.

FAQs on Kansas City to Seattle Flights

What are the airports in Kansas City?
MCI
What’s the most popular airline flying from MCI to SEA?
The most popular airline flying from Kansas City to Seattle are
Can I fly from MCI to SEA non-stop?
Yes, you can fly MCI to SEA non-stop on
Which airlines fly nonstop between Kansas City and Seattle?
The non-stop flights between Kansas City and Seattle are .
What’s the earliest departure time from MCI to SEA Airport?
The earliest flight leaves MCI at 7:00 am and lands in SEA - Seattle Tacoma International
What are the airports in Seattle?
SEA
Can I make changes to my Kansas City to Seattle flight tickets or cancel them on FareLeaders.com?
No. We are an airfare comparison site. All the tickets are booked by the travel agent offering the flight deal and any changes or cancellations to be made are directly done directly by them or the airlines.
Can I cancel my flight tickets from MCI to SEA?
Read the fare rules of the Kansas City to Seattle air tickets booked. Some airlines allow you to cancel the tickets within a stipulated time period with a cancellation fee.
Which airline alliances offer flights from Kansas City and Seattle?
operate flights between Kansas City and Seattle
How long does a flight from Kansas City to Seattle take?
It takes approximately 4 hour to fly non-stop from MCI to SEA, which is 1489.33 miles by air.
Which airlines provide the cheapest flights from Kansas City (MCI) to Seattle (SEA) ?
In the past couple of days, the cheapest tickets to SEA from MCI were found on WN : USD 403
Do I need a passport to fly between MCI and SEA?
No
What’s the latest departure time from MCI to SEA ?
The last flight leaves MCI at 7:00 pm

Kansas City (MCI) to Seattle (SEA): Airport Information

Origin Airport Kansas City International , Kansas City, US
Destination Airport Seattle Tacoma International , Seattle, US
Distance 1489 miles

More Flight Options for Kansas City (MCI) and Seattle (SEA)

Why Fareleaders for MCI to SEA Plane Tickets

Lowest Prices
Lowest Prices
Uncover the best deals on Kansas City to Seattle flights by comparing fares from hundreds of airlines and agencies.
New Deals
New Deals Everyday
Get the best prices on MCI to SEA flights—we update our fares daily so you never miss a saving.
Best Travel Options
No Service Fees
Compare hundreds of Kansas City to Seattle flights and secure the best deals—we never add any service fees.
Get Fare Drop Alert
Be the first to know when fares drop for the Kansas City (MCI) to Seattle (SEA)
Terms and Conditions*