SEA - MCI

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Everything you should know

Direct flights
Every day
You can fly direct with Alaska Airlines, Delta, and Southwest. Average duration is 3h 31m
Direct flights
Direct flights
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Direct flights
Direct flights
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When to book
in advance
Our data shows that travellers who book at least 4 weeks in advance save around 55% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 37% price drop
Most popular
Good to know
Good to know
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Good to know
Good to know
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We hope you love your trip to Kansas City!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Seattle to Kansas City (SEA-MCI)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Seattle to Kansas City that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Seattle to Kansas City

Multiple Airlines Logo
SEA
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MCI
3846 kmmulti-stop
Multiple Airlines Logo
MCI
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SEA
3846 kmmulti-stop
Multiple Airlines
Booking Insights

KAYAK's insights & trends for Seattle to Kansas City flights

Get data-powered insights and trends into flights from Seattle to Kansas City to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from Seattle to Kansas City?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Seattle to Kansas City, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Seattle to Kansas City is January, where tickets cost C$ 332 (return) on average. On the other hand, the most expensive months are July and December, where the average cost of round-trip tickets is C$ 695 and C$ 650 respectively.

Can I save money by flying with a layover from Seattle to Kansas City?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

Yes, flying with a layover may cost you more time, but you can also save money on the route, with a 1 stop layover the cheapest option at C$ 542 on average.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Seattle to Kansas City, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Seattle to Kansas City, you should book around 4 weeks before departure, which saves you about 55% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 8 weeks before departure.

Good to know

Low season

January
Best time to beat the crowds (38% less expensive on average)
Most popular time to fly (22% more expensive on average)

When to book flights from Seattle to Kansas City

Are your dates flexible? Find out the best times to travel from Seattle to Kansas City based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Seattle to Kansas City

  • Which airlines offer Wi-Fi service onboard planes from Seattle to Kansas City?

    Alaska Airlines, Delta, and JetBlue offer inflight Wi-Fi service on the Seattle to Kansas City flight route.

  • Which aircraft models fly most regularly from Seattle to Kansas City?

    The Boeing 737 is the aircraft model that flies most regularly on the Seattle to Kansas City flight route.

  • Which airline alliances offer flights from Seattle to Kansas City?

    oneworld is the only airline alliance operating flights between Seattle and Kansas City.

  • On which days can I fly direct from Seattle to Kansas City?

    There are direct flights from Seattle to Kansas City on a daily basis.

  • Which is the best airline for flights from Seattle to Kansas City, Alaska Airlines or Hawaiian Airlines?

    The two airlines most popular with KAYAK users for flights from Seattle to Kansas City are Alaska Airlines and Hawaiian Airlines. With an average price for the route of C$ 563 and an overall rating of 7.9, Alaska Airlines is the most popular choice. Hawaiian Airlines is also a great choice for the route, with an average price of C$ 567 and an overall rating of 7.8.

  • How does KAYAK find such low prices on flights from Seattle to Kansas City?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Seattle to Kansas City.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Seattle to Kansas City?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Kansas City from Seattle is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Seattle to Kansas City?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Kansas City with an airline and back to Seattle with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Seattle to Kansas City?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Kansas City from Seattle up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Prefer to fly direct from Seattle to Kansas City?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Seattle/Tacoma Intl to Kansas City.
Find which airlines fly direct from Seattle/Tacoma Intl Airport to Kansas City Airport, which days they fly and book direct flights.

Direct departures

Seattle/Tacoma Intl to Kansas City

Monday

Alaska Airlines,Delta

Alaska Airlines,Delta

Tuesday

Alaska Airlines,Delta

Alaska Airlines,Delta

Wednesday

Alaska Airlines,Delta

Alaska Airlines,Delta

Thursday

Alaska Airlines,Delta

Alaska Airlines,Delta

Friday

Alaska Airlines,Delta

Alaska Airlines,Delta

Saturday

Alaska Airlines,Delta,Southwest

Alaska Airlines,Delta, +1 more

Sunday

Alaska Airlines,Delta

Alaska Airlines,Delta

See more nonstop flights

Direct returns

Kansas City to Seattle/Tacoma Intl

Monday

Alaska Airlines,Delta

Alaska Airlines,Delta

Tuesday

Alaska Airlines,Delta

Alaska Airlines,Delta

Wednesday

Alaska Airlines,Delta

Alaska Airlines,Delta

Thursday

Alaska Airlines,Delta

Alaska Airlines,Delta

Friday

Alaska Airlines,Delta

Alaska Airlines,Delta

Saturday

Alaska Airlines,Delta,Southwest

Alaska Airlines,Delta, +1 more

Sunday

Alaska Airlines,Delta

Alaska Airlines,Delta

See more nonstop flights

Reviews of the top airlines flying from Seattle to Kansas City

 
See real verified KAYAK customer reviews for airlines flying from Seattle to Kansas City. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Seattle to Kansas City? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.9
Alaska AirlinesOverall score based on 12756 reviews
7.8Comfort
8.1Boarding
8.5Crew
7.0Entertainment
7.0Food
Airline reviews

Customer service of one flight attendant, impersonal to asking questions

8.0 ExcellentAnonymous, Jul 2026
SEA - MCI
Read more Alaska Airlines reviews

Customer service of one flight attendant, impersonal to asking questions

SeaTac airport hottible No signage to tell you where to go Took one and half hour to make to gate after being dropped at airport HORRIBLE LOTS OF yelling at patrons EXTREMELY HORRIBLE AND SCARY!

Late boarding, but the flight was smooth and the crew was accommodating.

The flight was delayed almost an hour. No wifi on flight.

Flight was OK, landing not good, boarding was ridiculous. Flight was to load at gate n11 25 minutes before boarding time it was changed to s5 which is 3 tram connections on the other side of the airport, I'm handicapped and even getting a sky cap took 10 minutes needless to say just made it to boarding only because it was delayed. I did learn a valuable lesson don't show up for flight 2 hours early.

We had to take the train to our next gate but had time to eat a meal. When to our next gate and asked employee about gate and got informed that gate had been changed so back on train to next gate. So thankful she was there and informed us of gate change. Because of the issue the boarding was slow but employees were there and busy helping all and keeping it organized.

We had a little trouble with boarding as the gate was changed at last moment and we didn't realize it.

The flight crew were excellent but everything up to the flight was not. As we arrived extra early for our flight we had to wait 2 hrs to check our baggage, took 30 min to get through TSA, Alaska changed our departure gate four times, with one gate being at the end of concourse C then changed to concourse N which meant walk all the way back then down to the trams and a ride to N terminal then a walk to the end of this terminal. Once on the plane flight went well.

Through no fault of their own, we took off two hours late because someone on the plane arriving from Las Vegas had been sick and had declared he had the Norovirus. In addition, they were unable to locate a necessary new part for the co-captain's chair. As a result, they FINALLY got us a new plane to board, but, because if was a bigger plane, they had to redistribute us for gravity's sake. Next, they had to wait on paper work, which had to be completed by hand and then put into the computer. The best I can say--which I recognize is the most important thing--is that we arrived in Kansas City safely.

Command crew was excellent in handling dangerous flying conditions (weather).

The crew at Hawaiian Airlines was fantastic. Kind and hard working. The pilots were great with giving us all the updates to make sure we were informed.

Flight scheduled to take off at 5.55pm but it did not take off until 7pm due to some food delivery delay.

The crew was quite good, they came by often with drinks or to collect trash. But what wasn't nice was the flight was over weigh and several people had to be rebooked. I was questioned whether I should have a seat when I was getting to it. The in-flight entertainment kept buffering and interrupting. And the route took the airplane through high winds which caused us a longer flight

Wasn’t on the flight due to Alaska cancellation…also after all the rerouting, I was going to be on a later flight that left SFO at 7:47pm, which meant an almost 6 hour layover. That same Hawaiian flight was delayed for another 2hours.

Flight was smooth and comfortable. We were able to check a bag at counter due to full flight and boarded with an earlier group. We were there very early and didn’t hear the gate change just noticed our flight was no longer displayed st the gate. There were two other flights with gate shuffles - may be unavoidable but not desirable. First time I had to print my own luggage tag and attach at arrival. Not a fan of that process.

I received an email from Kayak with confirmation number for Hawaiian and another for Alaska. I received emails from Kayak for both my outbound and return flight to say "time to check in." Despite trying each number (Hawaiian and Alaska), I could not check in for outbound or return. It was then confusing at the airport - I hda "no place to go" to figure out how to check in. All the kiosks are marked "scan bag,etc." I wandered around with no agent to talk to. That was a bit stressful. Either Kayak, or airline, needed better communication on what to expect and to do.

When I purchased my ticket, it said i was flying with Hawaii airlines. Which is now operated by Alaska. Naturally I went to check in with Hawaii airlines once at the airport. However, there was no one at the desk until 7 am and their kiosk couldn’t find my tickets. I went over to Alaska and they said they couldn’t help me and to wait for Hawaii. My flight left at 7:15 so I didn’t have time to wait. They even told me to ask United which was next to the Hawaii desk what time Hawaii opened. I called the Hawaii airlines number and the operator told me to ask Alaska for help since my flight was operated by Alaska. So I went back and almost got brushed off again and sent to Hawaii. The Alaska desk attendant told me to check in at their kiosk but it didn’t work. I ran over to an older lady who was helping check bags and asked for help printing my boarding passes. Thankful she was able to do it right away! This whole debacle took a little over an hour. I wish there was better communication and knowledge between the two airlines because it could have been easily handled if everyone between the two airlines was on the same page. Once I ran through the airport to get to my gate, we were greeted with a smile and they seemed glad we made our flight! We were the last to board and barely made it. After the headache our flight was great! No complaints there.

Biggest issue: awfully narrow seats, + not a lot of leg room. Other than that, everything was good. Cabin crew seemed like very nice people.

We got surprised and switched to Alaska airline. Dirtiest tray and seats I have ever board on and we travel all the time. Help desk would not help by chat as I'm disabled to get my sets assigned tell me call Hawaiian air. I call Hawaiian air was told the flights RT are by Alaska. Make it short, worse flights of our life.

First class ticket. They ran out of food and I sat hungry watching the others eat

Everything you need to know for your flight from Seattle to Kansas City

Information on your arrival and departure airports