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$348+ Cheap flights from Columbia, MO to Seattle (COU - 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 9/11. Fares are subject to change and may not be available on all flights or dates of travel.
COU — SEA
Sep 6 — Sep 132
Sun 9/6
Sun 9/13
2 travelers, Economy
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Cheap flight deals from Columbia to Seattle

Cheapest flights from Columbia to Seattle
Explore the most affordable flight options available from Columbia to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 7, 2026.

This United Airlines deal was found by Cheapflights users on 8/3. 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.
Fri 9/113:11 pm -
1 stop9h 34m
Mon 9/1411:00 pm -
1 stop9h 39m
Deal found 8/3$348
This United Airlines deal was found by Cheapflights users on 8/2. 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 10/1011:19 am -
2 stops11h 56m
Sun 10/1811:13 pm -
1 stop9h 26m
Deal found 8/2$354
This United Airlines deal was found by Cheapflights users on 8/3. 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 9/216:15 am -
1 stop7h 17m
Mon 9/288:29 pm -
2 stops12h 10m
Deal found 8/3$404
This American Airlines deal was found by Cheapflights users on 8/4. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/2612:43 pm -
1 stop10h 09m
Sat 8/297:40 am -
1 stop7h 07m
Deal found 8/4$428
This American Airlines deal was found by Cheapflights users on 8/3. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/2512:43 pm -
1 stop10h 09m
Sat 8/297:40 am -
1 stop7h 07m
Deal found 8/3$447
This United Airlines deal was found by Cheapflights users on 8/4. 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 9/1911:17 am -
1 stop9h 57m
Fri 9/2511:13 pm -
1 stop9h 26m
Deal found 8/4$448
This United Airlines deal was found by Cheapflights users on 8/4. 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 9/1911:17 am -
2 stops11h 26m
Sat 9/2611:13 pm -
1 stop9h 26m
Deal found 8/4$454
This United Airlines deal was found by Cheapflights users on 8/6. 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.
Thu 8/2710:55 am -
1 stop10h 12m
Wed 9/21:57 pm -
1 stop6h 58m
Deal found 8/6$455
This United Airlines deal was found by Cheapflights users on 8/4. 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 9/1911:17 am -
2 stops11h 26m
Sun 9/276:43 pm -
2 stops13h 56m
Deal found 8/4$459

Find flight deals from Columbia to Seattle

Discover tips and strategies to find the most affordable flight options for your journey from Columbia (COU) 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 August 7, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$348
(United Airlines)

Popular in

November

Cheapest in

September

Average price

$425
Provider with most accurate pricing for Columbia Regional-Seattle/Tacoma Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Columbia Regional-Seattle/Tacoma Intl flights.
Search Deals
From Columbia Regional to Seattle/Tacoma Intl
Search Deals
Highest demand for flights based on searches. 35% potential increase in price ($339 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 19% potential price decrease ($103 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in August 2026
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Columbia 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 2,558,603 searches. Data last updated August 7, 2026.
Use the filters below to find and compare flights from Columbia to Seattle that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

ColumbiaSeattle

COU Columbia Regional - SEA Seattle/Tacoma Intl

COUSEA

Columbia Regional

Thu 10/15

3:19 pm-10:56 pm

1 stop9h 37m

Seattle/Tacoma Intl

Sun 10/18

11:13 pm-10:39 am

1 stop9h 26m

$348
Quickest round-trip

ColumbiaSeattle

COU Columbia Regional - SEA Seattle/Tacoma Intl

COUSEA

Columbia Regional

Sat 11/7

9:01 am-1:55 pm

1 stop6h 54m

Seattle/Tacoma Intl

Wed 11/11

10:50 am-9:38 pm

1 stop8h 48m

$448

ColumbiaSeattle

COU Columbia Regional - SEA Seattle/Tacoma Intl

COUSEA

Columbia Regional

Sat 9/19

3:11 pm-10:45 pm

1 stop9h 34m

Seattle/Tacoma Intl

Tue 9/22

11:00 pm-10:39 am

1 stop9h 39m

$448

ColumbiaSeattle

COU Columbia Regional - SEA Seattle/Tacoma Intl

COUSEA

Columbia Regional

Wed 8/26

6:15 am-11:32 am

1 stop7h 17m

Seattle/Tacoma Intl

Sat 8/29

5:20 pm-10:16 am

2 stops14h 56m

$454

ColumbiaSeattle

COU Columbia Regional - SEA Seattle/Tacoma Intl

COUSEA

Columbia Regional

Tue 8/25

6:15 am-4:14 pm

2 stops11h 59m

Seattle/Tacoma Intl

Sat 8/29

11:00 pm-10:16 am

1 stop9h 16m

$454

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/6

Sorted by cheapest first

Compare providers for flights from Columbia 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 Columbia to Seattle in August.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Columbia, Missouri-Seattle flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Columbia, Missouri-Seattle flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Columbia, Missouri-Seattle flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Columbia, Missouri-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 Columbia, Missouri-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 Columbia to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from Columbia with our price prediction graph.
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 Columbia to Seattle

How much does it cost to fly round-trip from Columbia, Missouri to Seattle?

Airfare is below average for this route at the moment.

Columbia, Missouri to Seattle flights typically cost between $399 and $682 in September.
The cheapest round-trip price found within the last 5 days was $348 on United Airlines (Sep 11-Sep 14).

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 August 7, 2026.
Get a feel of what it's like to fly with United Airlines and American Airlines from Columbia to Seattle by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
United Airlines
7.4
Good
10,080 reviews

Food

6.7

Comfort

7.3

Boarding

7.7

Entertainment

7.1

Overall

7.4

Crew

8.1

Reviews

1 / 20
2.0
Mediocre

Dawn,Aug 2026

ORD - DEN

I missed my connecting flight because our plane took off ten minutes late and then when we got to the airport another plane was in our shoot waiting to get fueled up and that took 30 minutes so I missed my connecting flight. I asked if I could get off and they assured me the plane would most likely wait for me since they know what time the planes get in because of an app. I was not happy. I had to wait till 7:25 to board the next flight and then that was delayed. Gates changed till 9:20. Terrible
United Airlines
7.4
Good
10,080 reviews
United Airlines
7.4
Good
10,080 reviews

Food

6.7

Comfort

7.3

Boarding

7.7

Entertainment

7.1

Overall

7.4

Crew

8.1

Reviews

1 / 20
2.0
Mediocre

Dawn,Aug 2026

ORD - DEN

I missed my connecting flight because our plane took off ten minutes late and then when we got to the airport another plane was in our shoot waiting to get fueled up and that took 30 minutes so I missed my connecting flight. I asked if I could get off and they assured me the plane would most likely wait for me since they know what time the planes get in because of an app. I was not happy. I had to wait till 7:25 to board the next flight and then that was delayed. Gates changed till 9:20. Terrible
American Airlines
7.1
Good
11,874 reviews
United Airlines
7.4
Good
10,080 reviews

Food

6.7

Comfort

7.3

Boarding

7.7

Entertainment

7.1

Overall

7.4

Crew

8.1

Reviews

1 / 20
2.0
Mediocre

Dawn,Aug 2026

ORD - DEN

I missed my connecting flight because our plane took off ten minutes late and then when we got to the airport another plane was in our shoot waiting to get fueled up and that took 30 minutes so I missed my connecting flight. I asked if I could get off and they assured me the plane would most likely wait for me since they know what time the planes get in because of an app. I was not happy. I had to wait till 7:25 to board the next flight and then that was delayed. Gates changed till 9:20. Terrible

Related info for your journey

Find useful and relevant information for your journey from Columbia to Seattle. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Columbia, Missouri to Seattle?

    A quick flight from Columbia, Missouri to Seattle can take about 9h 37m. United Airlines provides one of the quickest options available for as low as $348. Columbia, Missouri and Seattle are separated by a distance of 1616 mi.

  • What are the cheapest airlines flying from Columbia, Missouri to Seattle round-trip?

    Flying on United Airlines is currently your cheapest option to Seattle, with prices starting at $323. Another option worth looking into is American Airlines, starting at $338 round trip. These flights start at 48% lower than the current average price 3 months from now.

  • Can I find deals for flights from Columbia to Seattle that include hotel bookings?

    Yes. In addition to deals on Columbia to Seattle flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Columbia to Seattle?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Columbia to Seattle.

  • Can I find deals for business class flights from Columbia to Seattle?

    Yes. Cheapflights offers flight deals from Columbia to Seattle by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Traveling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
SeaTac
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Tacoma
Lacey
Leavenworth
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Tukwila
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Snoqualmie
Tumwater
Centralia
Marysville
Puyallup
Kent
Ellensburg
Fife
Ocean Shores
Lakewood
Lynnwood
Poulsbo

Browse thousands of different options on Cheapflights for your next trip

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Top 2 airlines flying from Columbia to Seattle

Discover the top 2 airlines that operate flights from Columbia 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 2,558,603 searches. Data last updated August 7, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$323Average$523FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$338Average$473FlexibilityNo cancel feeOn-time71%

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