Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from Kansas City to Seattle from $79

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 5/5. 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
1 adult, Economy, 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

Enter your travel dates to find the best prices.
Frontier Logo
2:34 pm - 10:06 am
MCI
-
SEA
21h 32m
1 stop
Frontier Logo
3:19 pm - 1:00 pm
SEA
-
MCI
19h 41m
1 stop
$170Frontier
Tue, Jun 2 - Mon, Jun 8
Frontier Logo
2:34 pm - 10:06 am
MCI
-
SEA
21h 32m
1 stop
Frontier Logo
7:41 pm - 1:00 pm
SEA
-
MCI
15h 19m
1 stop
$184Frontier
Wed, Jun 3 - Wed, Jun 10
Frontier Logo
2:15 pm - 9:27 am
MCI
-
SEA
21h 12m
1 stop
Frontier Logo
7:12 pm - 1:49 pm
SEA
-
MCI
16h 37m
1 stop
$196Frontier
Mon, Apr 27 - Mon, May 4
Frontier Logo
2:34 pm - 10:06 am
MCI
-
SEA
21h 32m
1 stop
Frontier Logo
8:13 pm - 1:00 pm
SEA
-
MCI
14h 47m
2 stops
$208Frontier
Mon, Jun 1 - Wed, Jun 10
Frontier Logo
2:15 pm - 9:27 am
MCI
-
SEA
21h 12m
1 stop
Frontier Logo
4:20 pm - 2:06 pm
SEA
-
MCI
19h 46m
1 stop
$214Frontier
Mon, Apr 27 - Fri, May 1
Frontier Logo
2:15 pm - 9:27 am
MCI
-
SEA
21h 12m
1 stop
Frontier Logo
7:50 pm - 1:49 pm
SEA
-
MCI
15h 59m
1 stop
$216Frontier
Fri, May 1 - Tue, May 5
Frontier Logo
2:15 pm - 9:52 am
MCI
-
SEA
21h 37m
1 stop
Frontier Logo
7:12 pm - 1:30 pm
SEA
-
MCI
16h 18m
1 stop
$220Frontier
Thu, Apr 30 - Sun, May 3
Frontier Logo
2:15 pm - 9:52 am
MCI
-
SEA
21h 37m
1 stop
Frontier Logo
7:12 pm - 1:30 pm
SEA
-
MCI
16h 18m
1 stop
$221Frontier
Thu, Apr 30 - Sun, May 3
Frontier Logo
2:15 pm - 9:27 am
MCI
-
SEA
21h 12m
1 stop
Frontier Logo
7:50 pm - 1:49 pm
SEA
-
MCI
15h 59m
1 stop
$223Frontier
Fri, May 1 - Mon, May 11
Frontier Logo
2:15 pm - 9:27 am
MCI
-
SEA
21h 12m
1 stop
Frontier Logo
7:12 pm - 1:49 pm
SEA
-
MCI
16h 37m
1 stop
$224Frontier
Fri, May 1 - Mon, May 4

American Airlines flights from Kansas City to Seattle

Our best American Airlines deals on Kansas City to Seattle flight tickets
American Airlines
May 6
MCI6:06 pmKansas City
8h 30m
1 stop
SEA12:36 amSeattle/Tacoma Intl
May 13
SEA2:10 pmSeattle/Tacoma Intl
6h 40m
1 stop
MCI10:50 pmKansas City
$257
American Airlines
Apr 9
MCI2:11 pmKansas City
8h 53m
1 stop
SEA9:04 pmSeattle/Tacoma Intl
Apr 15
SEA2:10 pmSeattle/Tacoma Intl
7h 57m
1 stop
MCI12:07 amKansas City
$397
American Airlines
Apr 7
MCI6:30 amKansas City
8h 45m
1 stop
SEA1:15 pmSeattle/Tacoma Intl
Apr 13
SEA11:55 pmSeattle/Tacoma Intl
6h 59m
1 stop
MCI8:54 amKansas City
$423

Southwest flights from Kansas City to Seattle

Our best Southwest deals on Kansas City to Seattle flight tickets
Southwest
May 6
MCI6:45 pmKansas City
7h 25m
1 stop
SEA12:10 amSeattle/Tacoma Intl
May 13
SEA2:05 pmSeattle/Tacoma Intl
6h 10m
1 stop
MCI10:15 pmKansas City
$258
Southwest
May 6
MCI6:05 amKansas City
14h 25m
2 stops
SEA6:30 pmSeattle/Tacoma Intl
May 13
SEA2:05 pmSeattle/Tacoma Intl
6h 10m
1 stop
MCI10:15 pmKansas City
$264
Southwest
Apr 22
MCI4:25 pmKansas City
9h 10m
2 stops
SEA11:35 pmSeattle/Tacoma Intl
Apr 28
SEA6:30 amSeattle/Tacoma Intl
7h 45m
2 stops
MCI4:15 pmKansas City
$269

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 March 27, 2026.
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

Cheapest round-trip

Kansas CitySeattle

MCI - SEA

MCISEA

Kansas City

Tue 6/2

2:34 pm-10:06 am

1 stop21h 32m

Seattle/Tacoma Intl

Mon 6/8

3:19 pm-1:00 pm

1 stop19h 41m

$170

Kansas CitySeattle

MCI - SEA

MCISEA

Kansas City

Wed 6/3

2:34 pm-10:06 am

1 stop21h 32m

Seattle/Tacoma Intl

Wed 6/10

7:41 pm-1:00 pm

1 stop15h 19m

$184

Kansas CitySeattle

MCI - SEA

MCISEA

Kansas City

Mon 4/27

2:15 pm-9:27 am

1 stop21h 12m

Seattle/Tacoma Intl

Mon 5/4

7:12 pm-1:49 pm

1 stop16h 37m

$196
Quickest round-trip

Kansas CitySeattle

MCI - SEA

MCISEA

Kansas City

Mon 6/1

2:34 pm-10:06 am

1 stop21h 32m

Seattle/Tacoma Intl

Wed 6/10

8:13 pm-1:00 pm

2 stops14h 47m

$208

Kansas CitySeattle

MCI - SEA

MCISEA

Kansas City

Mon 4/27

2:15 pm-9:27 am

1 stop21h 12m

Seattle/Tacoma Intl

Fri 5/1

4:20 pm-2:06 pm

1 stop19h 46m

$214

Kansas CitySeattle

MCI - SEA

MCISEA

Kansas City

Fri 5/1

2:15 pm-9:27 am

1 stop21h 12m

Seattle/Tacoma Intl

Tue 5/5

7:50 pm-1:49 pm

1 stop15h 59m

$216

Kansas CitySeattle

MCI - SEA

MCISEA

Kansas City

Thu 4/30

2:15 pm-9:52 am

1 stop21h 37m

Seattle/Tacoma Intl

Sun 5/3

7:12 pm-1:30 pm

1 stop16h 18m

$220

Kansas CitySeattle

MCI - SEA

MCISEA

Kansas City

Thu 4/30

2:15 pm-9:52 am

1 stop21h 37m

Seattle/Tacoma Intl

Sun 5/3

7:12 pm-1:30 pm

1 stop16h 18m

$221

Kansas CitySeattle

MCI - SEA

MCISEA

Kansas City

Fri 5/1

2:15 pm-9:27 am

1 stop21h 12m

Seattle/Tacoma Intl

Mon 5/11

7:50 pm-1:49 pm

1 stop15h 59m

$223

Kansas CitySeattle

MCI - SEA

MCISEA

Kansas City

Fri 5/1

2:15 pm-9:27 am

1 stop21h 12m

Seattle/Tacoma Intl

Mon 5/4

7:12 pm-1:49 pm

1 stop16h 37m

$224

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 typical price of a round-trip flight between Kansas City and Seattle?

What is the cheapest month to fly to Seattle?

In general, February 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 $228. If you don’t want to visit Seattle in February, then you should wait until January to fly from Kansas City, when ticket prices are also cheap, with an average price of $248.

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 $459. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Monday 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 $631.

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 $447 when looking at flights departing in the evening. Flights to Seattle are more costly in the morning, with an average ticket price of $573. 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 $324 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 $278 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 March 2026, prices for Kansas City to Seattle flights are approximately 42% 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

$188

Fastest flight time

3h 57m

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 $188. The best round-trip flight deal from Kansas City to Seattle found on momondo in the last 72 hours is $321.
The fastest flight from Kansas City to Seattle takes 3h 57m
Direct flights go from Kansas City to Seattle every day.
There is 1 airport in Seattle. From Kansas City there are direct flights to 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 57m.

  • 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
FrontierPriceFrom $113Free CancellationRating
5.7
3,014 reviews
Search Frontier flights
Spirit AirlinesPriceFrom $119Free CancellationRating
6.3
8,551 reviews
Search Spirit Airlines flights
DeltaPriceFrom $149Free CancellationRating
7.9
8,340 reviews
Search Delta flights
SouthwestPriceFrom $163Free CancellationRating
8.0
4,331 reviews
Search Southwest flights
Hawaiian AirlinesPriceFrom $169Free CancellationRating
7.8
2,839 reviews
Search Hawaiian Airlines flights
Alaska AirlinesPriceFrom $197Free CancellationRating
7.9
12,121 reviews
Search Alaska Airlines flights
United AirlinesPriceFrom $216Free CancellationRating
7.4
9,491 reviews
Search United Airlines flights
American AirlinesPriceFrom $253Free CancellationRating
7.1
11,507 reviews
Search American Airlines flights

  • Delta Flights From Kansas City to Seattle

    Delta operates around 7 flights from Kansas City to Seattle every week. The average price of these flights found in the last 72 hours has been $326, but momondo users have found Delta deals from Kansas City to Seattle from as low as $149 round-trip. Delta has been scored 7.9/10 in 8,354 reviews.

  • Alaska Airlines Flights From Kansas City to Seattle

    Another popular option for Kansas City to Seattle flights is Alaska Airlines (7.9/10, 12,132 ratings). Alaska Airlines flies from Kansas City to Seattle around 5 times per week, with deals starting from $197 round-trip and rising to an average price of around $372.

Traveling to a place near Seattle?

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

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
Sun 4/26
Sun 5/3
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States