$81+ Cheap flights from Kansas City to Seattle (MCI - SEA)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/8. Fares are subject to change and may not be available on all flights or dates of travel.
MCI — SEA
Nov 11 — Nov 181
Round-trip
1 adult, Economy
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Find cheap flights from Kansas City to Seattle with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheapflights Tip: The best prices from Kansas City to Seattle/Tacoma Intl are usually found in February or April, booked 24 days in advance, depart on a Thursday or Friday and return on a Tuesday
Cheap flight deals from Kansas City to Seattle
Cheapest
Best
Last-minute
One-way
Cheapest flights from Kansas City to SeattleExplore the most affordable flight options available from Kansas City to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 12, 2026.
Explore the most affordable flight options available from Kansas City to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 12, 2026.
This Cheapflightsfares deal was found by Cheapflights users on 10/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/298:43 pm -
1 stop20h 29m
Mon 11/24:27 pm -
1 stop25h 20m
Deal found 10/7![Frontier logo]()
$262
This Kiwi.com deal was found by Cheapflights users on 10/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/48:29 pm -
1 stop21h 14m
Sun 12/139:53 pm -
1 stop14h 49m
Deal found 10/8![Frontier logo]()
$264
This Kiwi.com deal was found by Cheapflights users on 10/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/108:32 pm -
1 stop21h 11m
Wed 12/164:58 pm -
1 stop24h 43m
Deal found 10/10![Frontier logo]()
$266
This Kiwi.com deal was found by Cheapflights users on 10/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/308:43 pm -
1 stop20h 29m
Thu 11/59:13 pm -
2 stops44h 34m
Deal found 10/9![Frontier logo]()
$267
This Cheapflightsfares deal was found by Cheapflights users on 10/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/228:43 pm -
1 stop20h 29m
Mon 10/264:27 pm -
1 stop25h 20m
Deal found 10/7![Frontier logo]()
$268
This Expedia deal was found by Cheapflights users on 10/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/138:43 pm -
1 stop20h 29m
Mon 11/166:30 pm -
Nonstop3h 29m
Deal found 10/8![Multiple Airlines logo]()
$269
This Kiwi.com deal was found by Cheapflights users on 10/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/138:43 pm -
1 stop20h 29m
Tue 11/249:53 pm -
1 stop12h 41m
Deal found 10/7![Frontier logo]()
$271
This CheapOair deal was found by Cheapflights users on 10/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/108:43 pm -
1 stop20h 29m
Sat 11/144:27 pm -
1 stop25h 20m
Deal found 10/9![Frontier logo]()
$274
This Mytrip deal was found by Cheapflights users on 10/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/258:29 pm -
2 stops18h 08m
Mon 11/309:53 pm -
2 stops19h 40m
Deal found 10/7![Frontier logo]()
$275
This Cheapflightsfares deal was found by Cheapflights users on 10/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/238:43 pm -
1 stop20h 29m
Mon 10/264:27 pm -
1 stop25h 20m
Deal found 10/8![Frontier logo]()
$276
This Delta deal was found by Cheapflights users on 10/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/27:00 am -
Nonstop4h 21m
Fri 12/115:54 pm -
Nonstop3h 29m
Deal found 10/8![Delta logo]()
$277
This Travelocity deal was found by Cheapflights users on 10/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/138:43 pm -
1 stop20h 29m
Tue 11/1712:19 pm -
1 stop9h 18m
Deal found 10/7![Multiple Airlines logo]()
$279
Best flights from Kansas City to SeattleDiscover carefully curated flight deals from Kansas City to Seattle that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 12, 2026.
Discover carefully curated flight deals from Kansas City to Seattle that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 12, 2026.
This Alaska Airlines deal was found by Cheapflights users on 10/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/276:00 am -
Nonstop4h 18m
Fri 12/46:34 pm -
Nonstop3h 25m
Deal found 10/8![Alaska Airlines logo]()
$277
This Delta deal was found by Cheapflights users on 10/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/217:00 am -
Nonstop4h 11m
Fri 11/275:35 am -
1 stop6h 29m
Deal found 10/7![Delta logo]()
$287
This United Airlines deal was found by Cheapflights users on 10/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/74:00 pm -
2 stops9h 31m
Fri 11/1310:56 pm -
1 stop8h 02m
Deal found 10/8![United Airlines logo]()
$412
This Delta deal was found by Cheapflights users on 10/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/137:00 am -
Nonstop4h 11m
Tue 11/245:54 pm -
Nonstop3h 33m
Deal found 10/7![Delta logo]()
$357
This Delta deal was found by Cheapflights users on 10/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/97:00 am -
Nonstop4h 11m
Thu 11/125:54 pm -
Nonstop3h 33m
Deal found 10/7![Delta logo]()
$357
This United Airlines deal was found by Cheapflights users on 10/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/96:03 pm -
1 stop7h 15m
Thu 11/1212:20 pm -
2 stops9h 32m
Deal found 10/7![United Airlines logo]()
$412
This Alaska Airlines deal was found by Cheapflights users on 10/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/114:19 pm -
Nonstop4h 13m
Mon 12/149:55 am -
Nonstop3h 28m
Deal found 10/11![Alaska Airlines logo]()
$487
This Delta deal was found by Cheapflights users on 10/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/25:40 am -
1 stop10h 56m
Sun 12/65:54 pm -
Nonstop3h 29m
Deal found 10/10![Delta logo]()
$497
Last-minute flights from Kansas City to SeattleDiscover last-minute flight deals from Kansas City to Seattle. Data last updated October 12, 2026 and is based on user searches.
Discover last-minute flight deals from Kansas City to Seattle. Data last updated October 12, 2026 and is based on user searches.
This Cheapflightsfares deal was found by Cheapflights users on 10/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/228:43 pm -
1 stop20h 29m
Mon 10/264:27 pm -
1 stop25h 20m
Deal found 10/7![Frontier logo]()
$268
This Cheapflightsfares deal was found by Cheapflights users on 10/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/238:43 pm -
1 stop20h 29m
Mon 10/264:27 pm -
1 stop25h 20m
Deal found 10/8![Frontier logo]()
$276
This Cheapflightsfares deal was found by Cheapflights users on 10/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/298:43 pm -
1 stop20h 29m
Mon 11/24:27 pm -
1 stop25h 20m
Deal found 10/7![Frontier logo]()
$262
This Kiwi.com deal was found by Cheapflights users on 10/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/308:43 pm -
1 stop20h 29m
Thu 11/59:13 pm -
2 stops44h 34m
Deal found 10/9![Frontier logo]()
$267
This Delta deal was found by Cheapflights users on 10/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/77:00 am -
Nonstop4h 04m
Fri 11/135:54 pm -
Nonstop3h 33m
Deal found 10/8![Delta logo]()
$277
This Delta deal was found by Cheapflights users on 10/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/72:57 pm -
1 stop6h 05m
Sat 11/145:54 pm -
Nonstop3h 33m
Deal found 10/8![Delta logo]()
$287
This CheapOair deal was found by Cheapflights users on 10/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/108:43 pm -
1 stop20h 29m
Sat 11/144:27 pm -
1 stop25h 20m
Deal found 10/9![Frontier logo]()
$274
This Expedia deal was found by Cheapflights users on 10/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/138:43 pm -
1 stop20h 29m
Mon 11/166:30 pm -
Nonstop3h 29m
Deal found 10/8![Multiple Airlines logo]()
$269
This Kiwi.com deal was found by Cheapflights users on 10/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/138:43 pm -
1 stop20h 29m
Tue 11/249:53 pm -
1 stop12h 41m
Deal found 10/7![Frontier logo]()
$271
This Travelocity deal was found by Cheapflights users on 10/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/138:43 pm -
1 stop20h 29m
Tue 11/1712:19 pm -
1 stop9h 18m
Deal found 10/7![Multiple Airlines logo]()
$279
This Mytrip deal was found by Cheapflights users on 10/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/1312:53 pm -
2 stops28h 19m
Tue 11/177:48 pm -
2 stops21h 59m
Deal found 10/7![Frontier logo]()
$282
This Mytrip deal was found by Cheapflights users on 10/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/258:29 pm -
2 stops18h 08m
Mon 11/309:53 pm -
2 stops19h 40m
Deal found 10/7![Frontier logo]()
$275
One-way flights from Kansas City to SeattleSearch for one-way flight options from Kansas City to Seattle. Find affordable one-way fares based on user searches. Data last updated October 12, 2026.
Search for one-way flight options from Kansas City to Seattle. Find affordable one-way fares based on user searches. Data last updated October 12, 2026.
This Kiwi.com deal was found by Cheapflights users on 10/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/88:32 pm -
1 stop21h 11m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/8![Frontier logo]()
$81
This Kiwi.com deal was found by Cheapflights users on 10/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/108:43 pm -
1 stop20h 29m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/7![Frontier logo]()
$82
This Trip.com deal was found by Cheapflights users on 10/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/128:43 pm -
1 stop20h 29m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/7![Frontier logo]()
$96
This Super.com deal was found by Cheapflights users on 10/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/308:43 pm -
1 stop20h 29m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/7![Frontier logo]()
$99
This Cheapflightsfares deal was found by Cheapflights users on 10/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/68:43 pm -
1 stop20h 29m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/7![Frontier logo]()
$100
This Cheapflightsfares deal was found by Cheapflights users on 10/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/38:43 pm -
1 stop20h 29m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/8![Frontier logo]()
$102
This Kiwi.com deal was found by Cheapflights users on 10/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/108:32 pm -
1 stop21h 11m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/8![Frontier logo]()
$109
This Kiwi.com deal was found by Cheapflights users on 10/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/258:29 pm -
1 stop20h 53m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/8![Frontier logo]()
$110
This Kiwi.com deal was found by Cheapflights users on 10/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/138:43 pm -
1 stop20h 29m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/10![Frontier logo]()
$112
This Mytrip deal was found by Cheapflights users on 10/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/48:43 pm -
2 stops23h 50m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/8![Frontier logo]()
$113
Find flight deals from Kansas City to Seattle
Discover tips and strategies to find the most affordable flight options for your journey from Kansas City (MCI) to Seattle (SEA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated October 12, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $262 (Cheapflightsfares) |
One-way from | $81 (Kiwi.com) |
Popular in | July |
Cheapest in | February |
Average price | $464 |
Cheapflights 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, Cheapflights users made 7,457,451 searches. Data last updated October 12, 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
Cheapest round-trip
Kansas CitySeattle
MCI Kansas City - SEA Seattle/Tacoma Intl
MCISEA
Kansas City
Fri 10/30
5:20 pm-9:19 pm
1 stop5h 59m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$149
Kansas CitySeattle
MCI Kansas City - SEA Seattle/Tacoma Intl
MCISEA
Kansas City
Fri 10/30
3:35 pm-12:40 am
2 stops11h 05m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$154
Quickest round-trip
Kansas CitySeattle
MCI Kansas City - SEA Seattle/Tacoma Intl
MCISEA
Kansas City
Fri 10/30
7:00 am-9:04 am
Nonstop4h 04m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$169
Kansas CitySeattle
MCI Kansas City - SEA Seattle/Tacoma Intl
MCISEA
Kansas City
Wed 11/25
7:00 am-9:11 am
Nonstop4h 11m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$169
Kansas CitySeattle
MCI Kansas City - SEA Seattle/Tacoma Intl
MCISEA
Kansas City
Tue 12/1
7:00 am-9:21 am
Nonstop4h 21m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$169
Kansas CitySeattle
MCI Kansas City - SEA Seattle/Tacoma Intl
MCISEA
Kansas City
Sat 12/5
2:52 pm-11:55 pm
1 stop11h 03m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$179
Kansas CitySeattle
MCI Kansas City - SEA Seattle/Tacoma Intl
MCISEA
Kansas City
Wed 11/11
3:50 pm-11:35 pm
1 stop9h 45m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$189
Kansas CitySeattle
MCI Kansas City - SEA Seattle/Tacoma Intl
MCISEA
Kansas City
Tue 11/10
2:50 pm-10:20 pm
2 stops9h 30m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$194
Kansas CitySeattle
MCI Kansas City - SEA Seattle/Tacoma Intl
MCISEA
Kansas City
Wed 1/6
5:45 am-4:18 pm
2 stops12h 33m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$209
Kansas CitySeattle
MCI Kansas City - SEA Seattle/Tacoma Intl
MCISEA
Kansas City
Tue 11/17
2:52 pm-4:56 pm
Nonstop4h 04m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$244
Showing 1-10 of 20 resultsSorted by cheapest first
Compare providers for flights from Kansas City to Seattle
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Kansas City to Seattle in October.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*1 star |
- Most accurate provider: When it comes to deals on Kansas City-Seattle flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Kansas City-Seattle flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Kansas City-Seattle flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Kansas City-Seattle flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Kansas City-Seattle flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Kansas City to Seattle
Have a flexible travel schedule? Discover the best time to fly to Seattle from Kansas City with our price prediction graph.
MCI-SEA
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Kansas City to Seattle
Prices
Airlines
How far ahead should I book a flight from Kansas City to Seattle?
The price you pay for your flight from Kansas City to Seattle may vary depending on when you book. For the best chance of a lower fare, look to book 23 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
What is the cheapest month to book a flight from Kansas City to Seattle?
Currently, February is the cheapest month in which you can book a flight from Kansas City to Seattle (average of $228). Flying from Kansas City to Seattle in July is currently the most expensive (average of $496). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from MCI to SEA?
Find hourly flight availability from Kansas City to Seattle. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 12, 2026.
It’s optimal to fly from Kansas City to Seattle in the evening. By choosing this option you can save up to 16% on the cost of your flight, compared to a flight in the afternoon.
What is the cheapest day to fly from Kansas City to Seattle?
Use this chart to determine the cheapest time to fly round-trip from Kansas City to Seattle. Price data was last updated on October 10, 2026.
Travelers seeking maximum savings on their Kansas City to Seattle flight should consider departing on Thursday evenings when fares are most often at their lowest. Tuesday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.
The best insider tips for Kansas City to Seattle flights
AI-powered summary based on content written by travel experts. AI can make mistakes.
Cheapflights partnered with top experts to bring you the best recommendations for your Kansas City to Seattle trip
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Reviews of airlines servicing Seattle
Get insights into the airlines that provide service to Seattle. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Seattle. Reviews last updated October 12, 2026.
Read through reviews of airlines operating flights from Kansas City to Seattle, such as Alaska Airlines,Southwest, andDelta. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Overall
7.9
Food
7.0
Comfort
7.8
Crew
8.5
Entertainment
7.0
Boarding
8.1
Reviews
1 / 20
8.0
ExcellentAnonymous,Jun 2026
RDU - SEA
Overall
7.9
Food
7.0
Comfort
7.8
Crew
8.5
Entertainment
7.0
Boarding
8.1
Reviews
1 / 20
8.0
ExcellentAnonymous,Jun 2026
RDU - SEA
Overall
7.9
Food
7.0
Comfort
7.8
Crew
8.5
Entertainment
7.0
Boarding
8.1
Reviews
1 / 20
8.0
ExcellentAnonymous,Jun 2026
RDU - SEA
Overall
7.9
Food
7.0
Comfort
7.8
Crew
8.5
Entertainment
7.0
Boarding
8.1
Reviews
1 / 20
8.0
ExcellentAnonymous,Jun 2026
RDU - SEA
Overall
7.9
Food
7.0
Comfort
7.8
Crew
8.5
Entertainment
7.0
Boarding
8.1
Reviews
1 / 20
8.0
ExcellentAnonymous,Jun 2026
RDU - SEA
Overall
7.9
Food
7.0
Comfort
7.8
Crew
8.5
Entertainment
7.0
Boarding
8.1
Reviews
1 / 20
8.0
ExcellentAnonymous,Jun 2026
RDU - SEA
Related info for your journey
Find useful and relevant information for your journey from Kansas City to Seattle. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Seattle?
Book flights to Seattle if you plan to visit one of these locationsSeaTac
Renton
Tacoma
Lacey
Leavenworth
Olympia
Tukwila
Snoqualmie
Puyallup
Lynnwood
Centralia
Kent
Tumwater
Ocean Shores
Ellensburg
Issaquah
Lakewood
Poulsbo
Marysville
Shoreline
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Top 6 airlines flying from Kansas City to Seattle
Discover the top 6 airlines that operate flights from Kansas City to Seattle. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated October 12, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$152 | Average$436 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$158 | Average$392 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$193 | Average$321 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$197 | Average$431 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$216 | Average$459 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$276 | Average$487 | FlexibilityNo cancel fee | On-time71% |