Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from Kansas City to Seattle from $74

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Kansas City to Seattle departing on 10/23. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

Find the cheapest flights from Kansas City to Seattle

Cheap round-trip flights

United Airlines Logo
5:11 pm - 11:10 pmMCI-SEA
7h 59m1 stop
United Airlines Logo
12:00 pm - 8:47 pmSEA-MCI
6h 47m1 stop
$217United Airlines
Find Deal
Wed, Nov 12 - Sat, Nov 15
United Airlines Logo
5:11 pm - 9:13 pmMCI-SEA
6h 02m1 stop
United Airlines Logo
1:20 pm - 11:42 pmSEA-MCI
8h 22m2 stops
$222United Airlines
Find Deal
Wed, Nov 12 - Sat, Nov 15
Alaska Airlines Logo
7:00 am - 9:05 amMCI-SEA
4h 05mnonstop
Alaska Airlines Logo
8:33 am - 2:02 pmSEA-MCI
3h 29mnonstop
$239Alaska Airlines
Find Deal
Wed, Nov 12 - Wed, Nov 19
Alaska Airlines Logo
6:00 am - 8:14 amMCI-SEA
4h 14mnonstop
Alaska Airlines Logo
9:08 am - 2:36 pmSEA-MCI
3h 28mnonstop
$249Alaska Airlines
Find Deal
Sat, Nov 22 - Fri, Nov 28
Frontier Logo
7:02 pm - 7:33 amMCI-SEA
14h 31m1 stop
Frontier Logo
2:22 pm - 7:33 pmSEA-MCI
27h 11m1 stop
$253Frontier
Find Deal
Sat, Oct 18 - Sun, Nov 2
Frontier Logo
8:38 pm - 7:33 amMCI-SEA
12h 55m1 stop
Frontier Logo
8:43 pm - 7:53 pmSEA-MCI
21h 10m1 stop
$256Frontier
Find Deal
Thu, Oct 23 - Sun, Oct 26
Delta Logo
7:55 am - 10:08 amMCI-SEA
4h 13mnonstop
Delta Logo
5:50 pm - 11:22 pmSEA-MCI
3h 32mnonstop
$257Delta
Find Deal
Wed, Dec 3 - Tue, Dec 9
Delta Logo
7:55 am - 10:08 amMCI-SEA
4h 13mnonstop
Delta Logo
5:50 pm - 11:24 pmSEA-MCI
3h 34mnonstop
$267Delta
Find Deal
Sat, Nov 22 - Fri, Nov 28
American Airlines Logo
7:00 am - 1:10 pmMCI-SEA
8h 10m1 stop
American Airlines Logo
5:24 am - 4:43 pmSEA-MCI
9h 19m1 stop
$287American Airlines
Find Deal
Sat, Nov 8 - Mon, Nov 10
American Airlines Logo
12:46 pm - 7:42 pmMCI-SEA
8h 56m1 stop
American Airlines Logo
11:22 am - 9:29 pmSEA-MCI
8h 07m1 stop
$297American Airlines
Find Deal
Thu, Dec 4 - Mon, Dec 8

Delta flights from Kansas City to Seattle

Our best Delta deals on Kansas City to Seattle flight tickets
Delta
Dec 3
MCI7:55 amKansas City
4h 13m
SEA10:08 amSeattle/Tacoma Intl
Dec 9
SEA5:50 pmSeattle/Tacoma Intl
3h 32m
MCI11:22 pmKansas City
$257
Find similar
Delta
Nov 22
MCI7:55 amKansas City
4h 13m
SEA10:08 amSeattle/Tacoma Intl
Nov 28
SEA5:50 pmSeattle/Tacoma Intl
3h 34m
MCI11:24 pmKansas City
$267
Find similar
Delta
Oct 18
MCI5:39 pmKansas City
8h 15m
1 stop
SEA11:54 pmSeattle/Tacoma Intl
Oct 25
SEA5:50 pmSeattle/Tacoma Intl
3h 31m
MCI11:21 pmKansas City
$327
Find similar

American Airlines flights from Kansas City to Seattle

Our best American Airlines deals on Kansas City to Seattle flight tickets
American Airlines
Nov 8
MCI7:00 amKansas City
8h 10m
1 stop
SEA1:10 pmSeattle/Tacoma Intl
Nov 10
SEA5:24 amSeattle/Tacoma Intl
9h 19m
1 stop
MCI4:43 pmKansas City
$287
Find similar
American Airlines
Dec 4
MCI12:46 pmKansas City
8h 56m
1 stop
SEA7:42 pmSeattle/Tacoma Intl
Dec 8
SEA11:22 amSeattle/Tacoma Intl
8h 07m
1 stop
MCI9:29 pmKansas City
$297
Find similar
American Airlines
Oct 26
MCI5:34 amKansas City
7h 20m
1 stop
SEA10:54 amSeattle/Tacoma Intl
Nov 1
SEA12:59 amSeattle/Tacoma Intl
6h 44m
1 stop
MCI8:43 amKansas City
$316
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Kansas City to Seattle 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, momondo users made 832,500 searches. Data last updated September 29, 2025.
Use the filters below to find and compare flights from Kansas City to Seattle that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Kansas CitySeattle

MCI - SEA

MCISEA

Kansas City

Wed 11/12

5:11 pm-11:10 pm

1 stop7h 59m

Seattle/Tacoma Intl

Sat 11/15

12:00 pm-8:47 pm

1 stop6h 47m

$217

Kansas CitySeattle

MCI - SEA

MCISEA

Kansas City

Wed 11/12

5:11 pm-9:13 pm

1 stop6h 02m

Seattle/Tacoma Intl

Sat 11/15

1:20 pm-11:42 pm

2 stops8h 22m

$222

Kansas CitySeattle

MCI - SEA

MCISEA

Kansas City

Wed 11/12

7:00 am-9:05 am

Nonstop4h 05m

Seattle/Tacoma Intl

Wed 11/19

8:33 am-2:02 pm

Nonstop3h 29m

$239

Kansas CitySeattle

MCI - SEA

MCISEA

Kansas City

Sat 11/22

6:00 am-8:14 am

Nonstop4h 14m

Seattle/Tacoma Intl

Fri 11/28

9:08 am-2:36 pm

Nonstop3h 28m

$249

Kansas CitySeattle

MCI - SEA

MCISEA

Kansas City

Sat 10/18

7:02 pm-7:33 am

1 stop14h 31m

Seattle/Tacoma Intl

Sun 11/2

2:22 pm-7:33 pm

1 stop27h 11m

$253

Kansas CitySeattle

MCI - SEA

MCISEA

Kansas City

Thu 10/23

8:38 pm-7:33 am

1 stop12h 55m

Seattle/Tacoma Intl

Sun 10/26

8:43 pm-7:53 pm

1 stop21h 10m

$256

Kansas CitySeattle

MCI - SEA

MCISEA

Kansas City

Wed 12/3

7:55 am-10:08 am

Nonstop4h 13m

Seattle/Tacoma Intl

Tue 12/9

5:50 pm-11:22 pm

Nonstop3h 32m

$257

Kansas CitySeattle

MCI - SEA

MCISEA

Kansas City

Sat 11/22

7:55 am-10:08 am

Nonstop4h 13m

Seattle/Tacoma Intl

Fri 11/28

5:50 pm-11:24 pm

Nonstop3h 34m

$267

Kansas CitySeattle

MCI - SEA

MCISEA

Kansas City

Sat 11/8

7:00 am-1:10 pm

1 stop8h 10m

Seattle/Tacoma Intl

Mon 11/10

5:24 am-4:43 pm

1 stop9h 19m

$287

Kansas CitySeattle

MCI - SEA

MCISEA

Kansas City

Thu 12/4

12:46 pm-7:42 pm

1 stop8h 56m

Seattle/Tacoma Intl

Mon 12/8

11:22 am-9:29 pm

1 stop8h 07m

$297

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to Seattle from

How to get the cheapest flight ticket from Kansas City to Seattle

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Seattle?

In general, January is the cheapest month to fly from Kansas City to Seattle. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $266. If you don’t want to visit Seattle in January, then you should wait until April to fly from Kansas City, when ticket prices are also cheap, with an average price of $267.

What is the cheapest day to depart on your flight to Seattle?

On average, the least expensive day to fly to Seattle from Kansas City is on a Thursday. momondo users have found tickets for Thursday departures for as low as $463. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Sunday is the most expensive day to depart from Kansas City because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $610.

What is the cheapest time of day to depart on your flight to Seattle?

Flying to Seattle from Kansas City in the evening is the least expensive time of day to depart. momondo users have found prices as low as $476 when looking at flights departing in the evening. Flights to Seattle are more costly in the morning, with an average ticket price of $554. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

What is the cheapest Kansas City to Seattle/Tacoma Intl flight route?

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

How far in advance should I book a flight to Seattle?

You are more likely to see cheaper flights to Seattle from Kansas City when booking weeks ahead of your departure date. In general, you can expect to find flights to Seattle for around $337 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Seattle from Kansas City for as low as $280 on momondo.

What cabin class options are available on Kansas City to Seattle/Tacoma Intl flights?

There are 4 cabin classes available to choose from on Kansas City to Seattle/Tacoma Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Kansas City to Seattle flights?

You could potentially save up to 15% on your flight if you consider stops on a Kansas City to Seattle flight.

How have Kansas City to Seattle flight prices changed over time?

As of September 2025, prices for Kansas City to Seattle flights are approximately 12% more expensive when compared to flights at the same time last year.

When to book flights from Kansas City to Seattle

Are you open to changing your travel dates? Check out the ideal times to fly from Kansas City to Seattle according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Kansas City to Seattle (MCI to SEA) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Kansas City to Seattle

Best Price Found

$254

Fastest flight time

3h 54m

Direct flights

Every day

Airports in Seattle

1 airport
The best one-way flight to Seattle from Kansas City in the past 72 hours is $254. The best round-trip flight deal from Kansas City to Seattle found on momondo in the last 72 hours is $387.
The fastest flight from Kansas City to Seattle takes 3h 54m
Direct flights go from Kansas City to Seattle every day.
There is 1 airport near Seattle: Seattle/Tacoma Intl (SEA)
Search flight deals

  • How far is Kansas City to Seattle/Tacoma Intl by plane?

    Kansas City and Seattle/Tacoma Intl are 1503.6 mi apart from one another. In terms of flight time, this usually takes a little over 3h 59m.

  • When did momondo last update prices for flights from Kansas City Airport to Seattle/Tacoma Intl Airport?

    Prices for flights from Kansas City Airport to Seattle/Tacoma Intl Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Kansas City Airport to Seattle/Tacoma Intl Airport?

  • How old do you have to be to fly from Kansas City Airport to Seattle/Tacoma Intl Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Kansas City Airport to Seattle/Tacoma Intl Airport.

  • What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?

    The travel and health documents required for your trip to Seattle/Tacoma Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Seattle/Tacoma Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular plane model from Kansas City to Seattle?

  • What is the most popular airline from Kansas City to Seattle?

Best airlines flying from Kansas City to Seattle

Compare and see reviews for airlines that fly from Kansas City to Seattle with momondo
Airline
Rating
Free Cancellation
Price
Spirit AirlinesPriceFrom $111Free CancellationRating
6.3
8,050 reviews
Search Spirit Airlines flights
FrontierPriceFrom $118Free CancellationRating
5.8
3,158 reviews
Search Frontier flights
DeltaPriceFrom $137Free CancellationRating
7.9
7,964 reviews
Search Delta flights
Hawaiian AirlinesPriceFrom $149Free CancellationRating
7.8
2,760 reviews
Search Hawaiian Airlines flights
American AirlinesPriceFrom $194Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
United AirlinesPriceFrom $216Free CancellationRating
7.4
8,924 reviews
Search United Airlines flights
Alaska AirlinesPriceFrom $227Free CancellationRating
8.0
10,000 reviews
Search Alaska Airlines flights
SouthwestPriceFrom $237Free CancellationRating
8.0
4,246 reviews
Search Southwest flights

  • Alaska Airlines Flights From Kansas City to Seattle

    Alaska Airlines operates around 4 flights from Kansas City to Seattle every week. The average price of these flights found in the last 72 hours has been $391, but momondo users have found Alaska Airlines deals from Kansas City to Seattle from as low as $227 round-trip. Alaska Airlines has been scored 8.0/10 in 10,000 reviews.

  • Southwest Flights From Kansas City to Seattle

    Another popular option for Kansas City to Seattle flights is Southwest (8.0/10, 4,246 ratings). Southwest flies from Kansas City to Seattle around 2 times per week, with deals starting from $237 round-trip and rising to an average price of around $387.

Traveling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
Leavenworth
Tacoma
SeaTac
Ocean Shores
Renton
Olympia
Lynnwood
Kent
Marysville
Puyallup
Federal Way
Tukwila
Kirkland
Shoreline
Lakewood
Centralia
Fife
Cle Elum
Redmond
Westport

Why use momondo?

Why should I use momondo to find a flight deal from Kansas City to Seattle?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Kansas City to Seattle for you.

Can I find flights from Kansas City to Seattle with flexible booking policies on momondo?

Yes. All flights to Seattle from Kansas City on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Kansas City to Seattle?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Seattle from Kansas City.

I’m not ready to book a flight from Kansas City to Seattle right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Kansas City to Seattle flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

An easier way to manage your Seattle trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Wed 10/29
Wed 11/5
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States