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Cheap flights from Kansas City to Seattle from $90

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 5/13. 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

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Cheap round-trip flights

KAYAK's recommended round-trip deals from the most popular airlines that fly from Kansas City to Seattle.
Spirit Airlines Logo
6:45 pm - 12:10 amMCI-SEA
7h 25m1 stop
Spirit Airlines Logo
6:00 am - 5:45 pmSEA-MCI
9h 45m1 stop
$189Spirit Airlines
Find Deal
Sat, May 10 - Sat, May 17
 Logo
6:45 pm - 12:10 amMCI-SEA
7h 25m1 stop
 Logo
12:31 pm - 7:51 pmSEA-MCI
5h 20m1 stop
Wed, May 7 - Mon, May 12
Spirit Airlines Logo
6:45 pm - 12:10 amMCI-SEA
7h 25m1 stop
Spirit Airlines Logo
6:00 am - 5:45 pmSEA-MCI
9h 45m1 stop
$197Spirit Airlines
Find Deal
Wed, May 7 - Wed, May 14
Delta Logo
6:30 am - 8:25 amMCI-SEA
3h 55mnonstop
Delta Logo
5:30 pm - 11:08 pmSEA-MCI
3h 38mnonstop
$237Delta
Find Deal
Wed, May 7 - Wed, May 14
Delta Logo
6:30 am - 8:25 amMCI-SEA
3h 55mnonstop
Delta Logo
5:30 pm - 11:08 pmSEA-MCI
3h 38mnonstop
$257Delta
Find Deal
Wed, May 7 - Mon, May 12
American Airlines Logo
8:08 pm - 12:44 amMCI-SEA
6h 36m1 stop
American Airlines Logo
12:24 am - 8:40 amSEA-MCI
6h 16m1 stop
$308American Airlines
Find Deal
Fri, Aug 22 - Fri, Aug 29
American Airlines Logo
8:08 pm - 12:44 amMCI-SEA
6h 36m1 stop
American Airlines Logo
1:29 pm - 11:59 pmSEA-MCI
8h 30m1 stop
$319American Airlines
Find Deal
Thu, Aug 21 - Tue, Aug 26
Hawaiian Airlines Logo
7:00 am - 8:58 amMCI-SEA
3h 58mnonstop
Hawaiian Airlines Logo
6:26 pm - 11:59 pmSEA-MCI
3h 33mnonstop
$347Hawaiian Airlines
Find Deal
Fri, May 2 - Wed, May 7
Hawaiian Airlines Logo
4:55 pm - 11:01 pmMCI-SEA
8h 06m1 stop
Hawaiian Airlines Logo
7:55 am - 4:01 pmSEA-MCI
6h 06m1 stop
$358Hawaiian Airlines
Find Deal
Wed, Aug 20 - Sun, Aug 24
Alaska Airlines Logo
7:56 pm - 9:56 pmMCI-SEA
4h 00mnonstop
Alaska Airlines Logo
6:05 pm - 11:35 pmSEA-MCI
3h 30mnonstop
$408Alaska Airlines
Find Deal
Sun, Jul 27 - Tue, Aug 5

Alaska Airlines flights from Kansas City to Seattle

Our best Alaska Airlines deals on Kansas City to Seattle flight tickets
Alaska Airlines
Apr 23
MCI7:00 amKansas City
3h 58m
SEA8:58 amSeattle/Tacoma Intl
Apr 30
SEA6:26 pmSeattle/Tacoma Intl
3h 33m
MCI11:59 pmKansas City
Alaska Airlines
Apr 23
MCI3:59 pmKansas City
7h 40m
1 stop
SEA9:39 pmSeattle/Tacoma Intl
Apr 30
SEA6:26 pmSeattle/Tacoma Intl
3h 33m
MCI11:59 pmKansas City
Alaska Airlines
Jul 27
MCI7:56 pmKansas City
4h 00m
SEA9:56 pmSeattle/Tacoma Intl
Aug 5
SEA6:05 pmSeattle/Tacoma Intl
3h 30m
MCI11:35 pmKansas City

United Airlines flights from Kansas City to Seattle

Our best United Airlines deals on Kansas City to Seattle flight tickets
United Airlines
May 14
MCI6:00 amKansas City
9h 43m
2 stops
SEA1:43 pmSeattle/Tacoma Intl
May 22
SEA11:50 pmSeattle/Tacoma Intl
7h 14m
1 stop
MCI9:04 amKansas City
United Airlines
May 8
MCI7:45 amKansas City
7h 34m
1 stop
SEA1:19 pmSeattle/Tacoma Intl
May 10
SEA7:14 amSeattle/Tacoma Intl
9h 25m
1 stop
MCI6:39 pmKansas City
United Airlines
May 2
MCI3:36 pmKansas City
7h 55m
1 stop
SEA9:31 pmSeattle/Tacoma Intl
May 7
SEA11:59 pmSeattle/Tacoma Intl
7h 12m
1 stop
MCI9:11 amKansas City

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 $257. 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 $258.

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 $438. 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 $558.

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 $461 when looking at flights departing in the evening. Flights to Seattle are more costly at noon, with an average ticket price of $515. Departure times at noon 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 10 weeks ahead of your departure date. In general, you can expect to find flights to Seattle for around $328 when searching 10 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 $276 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.

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

As of April 2025, prices for Kansas City to Seattle flights are approximately 13% cheaper 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

$90

Fastest flight time

3h 45m

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 $90. The best round-trip flight deal from Kansas City to Seattle found on momondo in the last 72 hours is $189.
The fastest flight from Kansas City to Seattle takes 3h 45m
Direct flights go from Kansas City to Seattle every day.
There is 1 airport near Seattle: Seattle/Tacoma Intl (SEA)

  • 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 50m.

  • 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 $116Free CancellationRating
6.0
3,279 reviews
Search Frontier flights
Hawaiian AirlinesPriceFrom $128Free CancellationRating
7.9
2,365 reviews
Search Hawaiian Airlines flights
Spirit AirlinesPriceFrom $133Free CancellationRating
6.3
7,905 reviews
Search Spirit Airlines flights
DeltaPriceFrom $138Free CancellationRating
8.0
7,911 reviews
Search Delta flights
United AirlinesPriceFrom $201Free CancellationRating
7.4
8,636 reviews
Search United Airlines flights
Alaska AirlinesPriceFrom $216Free CancellationRating
8.0
9,851 reviews
Search Alaska Airlines flights
SouthwestPriceFrom $267Free CancellationRating
8.0
4,279 reviews
Search Southwest flights
American AirlinesPriceFrom $275Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
  • Delta Flights From Kansas City to Seattle

    Delta 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 $320, but momondo users have found Delta deals from Kansas City to Seattle from as low as $138 round-trip. Delta has been scored 8.0/10 in 7,911 reviews.

  • Alaska Airlines Flights From Kansas City to Seattle

    Another popular option for Kansas City to Seattle flights is Alaska Airlines (8.0/10, 9,851 ratings). Alaska Airlines flies from Kansas City to Seattle around 8 times per week, with deals starting from $216 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
Leavenworth
Tacoma
SeaTac
Ocean Shores
Olympia
Kent
Renton
Federal Way
Tukwila
Puyallup
Kirkland
Lakewood
Lynnwood
Fife
Shoreline
Centralia
Marysville
Redmond
Cle Elum
Lacey

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.


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