$129 Cheap Delta flights Seattle (SEA) to Kansas City (MCI)

View $129 flight on Wed, Dec 3, 2025Opens in a new window

$129 Cheap Delta flights Seattle (SEA) to Kansas City (MCI)

Prices were available within the past 7 days and start at $129 for one-way flights and $257 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Sat, Sep 13 - Tue, Sep 16
SEA
Seattle
MCI
Kansas City
$257 Roundtrip, just found
$257
Roundtrip
just found
Select Delta flight, departing Sat, Sep 13 from Seattle to Kansas City, returning Tue, Sep 16, priced at $257 just found
Delta
Mon, Nov 10 - Wed, Nov 19
SEA
Seattle
MCI
Kansas City
$259 Roundtrip, found 1 hour ago
$259
Roundtrip
found 1 hour ago
Select Delta flight, departing Mon, Nov 10 from Seattle to Kansas City, returning Wed, Nov 19, priced at $259 found 1 hour ago
Delta
Mon, Sep 22 - Sat, Sep 27
SEA
Seattle
MCI
Kansas City
$261 Roundtrip, just found
$261
Roundtrip
just found
Select Delta flight, departing Mon, Sep 22 from Seattle to Kansas City, returning Sat, Sep 27, priced at $261 just found
Flights from Seattle (SEA) to Kansas City (MCI)
Origin airport
Seattle - Tacoma Intl.
Destination airport
Kansas City Intl.
Airlines serving
Alaska Airlines, American Airlines, Delta, Frontier Airlines, Hawaiian Airlines, Southwest Airlines, Sun Country Airlines, United
Popular airline
Alaska Airlines
Distance
1485 mi
Average flight time
5 hours 29 mins

Frequently asked questions

How much is a Delta Air Lines flight from Seattle - Tacoma Intl. Airport (SEA) to Kansas City Intl. Airport (MCI)?
Grab affordable round-trip Delta Air Lines flights from $257 from SEA to MCI by sorting your results from "Price (lowest to highest)" on Expedia. Or search for options from $129 for a one-way journey.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
What is the cheapest month to fly from SEA to MCI with Delta Air Lines?
Search for one-way or round-trip flights to Kansas City in January or November. You could find an affordable fare with Delta Air Lines during these quieter months.
What is the cheapest time to book flights from Seattle - Tacoma Intl. Airport (SEA) to Kansas City Intl. Airport (MCI) with Delta Air Lines?
Look for cheap Delta Air Lines flights from Seattle - Tacoma Intl. Airport (SEA) to Kansas City Intl. Airport (MCI) one to three months ahead of your day of departure. Travelers who book domestic flights 34 to 86 days in advance can save 25% compared to those who book just 6 to 12 days ahead. No matter the fare class and itinerary, the best day of the week to book a domestic flight is usually Sunday and the most expensive day tends to be Monday. Passengers who book on a Sunday can save 6% on average compared to those who book on a Monday.**Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC's global airline sales database.
Does Delta Air Lines fly nonstop from Seattle - Tacoma Intl. Airport (SEA) to Kansas City Intl. Airport (MCI)?
Take off on one of Delta Air Lines's 7 direct weekly flights from Seattle - Tacoma Intl. Airport (SEA) to Kansas City Intl. Airport (MCI). To view available options, enter your travel dates, origin and destination and hit search. Then use the "Nonstop" and "Airline" filters.
How long does it take to fly from SEA to MCI with Delta Air Lines?
Take off from Seattle - Tacoma Intl. Airport (SEA) for Kansas City Intl. Airport (MCI) on a nonstop Delta Air Lines flight, and you'll be in the skies for around 3h 29m.
What is the earliest Delta Air Lines flight from SEA to MCI?
The first Delta Air Lines flight from SEA to MCI departs at 6:40PM UTC-8, touching down at 12:09AM UTC-6. If you'd like to head off later, the last Delta Air Lines flight leaves SEA at 6:40PM UTC-8 and lands at MCI at 12:09AM UTC-6. Flying before noon is generally a smart choice as morning flights tend to experience fewer cancellations.**Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports does Delta Air Lines fly into in Kansas City?
Delta Air Lines flights from Seattle - Tacoma Intl. Airport (SEA) to Kansas City come in to Kansas City Intl. Airport (MCI). This is the main entry point to this city.
Why fly with Delta Air Lines from SEA to MCI?
Offering an excellent in-flight experience and a rewarding loyalty program, Delta Air Lines is a popular option for many passengers flying from SEA to MCI. Plus, if you're a Delta SkyMiles and One Key™ member booking through Expedia, you could earn OneKeyCash™* on eligible flights on top of your airline miles, which you can put toward future trips.*OneKeyCash™ disclaimer - OneKeyCash™ is not redeemable for cash and can only be used on Expedia, Hotels.com and Vrbo.
What type of plane does Delta Air Lines fly from Seattle - Tacoma Intl. Airport (SEA) to Kansas City Intl. Airport (MCI)?
Delta Air Lines generally operates Airbus A220-100 planes for flights from Seattle - Tacoma Intl. Airport (SEA) to Kansas City Intl. Airport (MCI). Bear in mind that aircraft type can vary depending on operational needs, so the plane you board might be different on your travel date.
Can I change or cancel my Delta Air Lines flight from Seattle - Tacoma Intl. Airport (SEA) to Kansas City Intl. Airport (MCI)?
In most cases, you can cancel or modify your flight, although there may be additional fees if you booked over 24 hours ago. Need flexible options? Make use of Expedia's "No cancel fee" or "Changes included" filter to find flights that won't charge you extra if you need to adjust your plans. To modify your booking, visit "Trips," select your flight and click on "Manage Booking" for further information.
*Available to One Key members.