$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 10/9. Fares are subject to change and may not be available on all flights or dates of travel.
COU — SEA
Oct 15 — Oct 221
Round-trip
1 adult, Economy
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Find cheap flights from Columbia 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.Cheap flight deals from Columbia to Seattle
Cheapest
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Last-minute
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Cheapest flights from Columbia to SeattleExplore 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 September 15, 2026.
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 September 15, 2026.
This American Airlines deal was found by Cheapflights users on 9/10. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/95:00 pm -
1 stop9h 10m
Sun 10/1811:59 pm -
1 stop7h 59m
Deal found 9/10![American Airlines logo]()
$348
This United Airlines deal was found by Cheapflights users on 9/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/293:00 pm -
1 stop10h 17m
Sat 10/317:00 am -
2 stops11h 41m
Deal found 9/11![United Airlines logo]()
$373
This United Airlines deal was found by Cheapflights users on 9/14. 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.
Wed 12/211:25 am -
2 stops12h 33m
Wed 12/92:05 pm -
1 stop6h 51m
Deal found 9/14![United Airlines logo]()
$374
This United Airlines deal was found by Cheapflights users on 9/12. 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 10/106:15 am -
1 stop7h 12m
Sat 10/179:05 am -
2 stops11h 50m
Deal found 9/12![United Airlines logo]()
$394
This United Airlines deal was found by Cheapflights users on 9/13. 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 10/293:00 pm -
1 stop10h 17m
Tue 11/39:05 am -
2 stops11h 53m
Deal found 9/13![United Airlines logo]()
$417
This United Airlines deal was found by Cheapflights users on 9/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/2511:15 am -
1 stop9h 37m
Mon 9/2811:13 pm -
1 stop9h 26m
Deal found 9/11![United Airlines logo]()
$418
This United Airlines deal was found by Cheapflights users on 9/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/2511:15 am -
1 stop9h 37m
Tue 9/297:11 am -
2 stops11h 22m
Deal found 9/10![United Airlines logo]()
$424
This United Airlines deal was found by Cheapflights users on 9/12. 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 11/138:00 am -
2 stops12h 33m
Mon 11/162:30 pm -
1 stop6h 28m
Deal found 9/12![United Airlines logo]()
$425
Best flights from Columbia to SeattleDiscover carefully curated flight deals from Columbia to Seattle that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 15, 2026.
Discover carefully curated flight deals from Columbia to Seattle that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 15, 2026.
This United Airlines deal was found by Cheapflights users on 9/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/711:30 am -
2 stops11h 18m
Mon 1/112:30 pm -
1 stop6h 52m
Deal found 9/11![United Airlines logo]()
$354
This United Airlines deal was found by Cheapflights users on 9/12. 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 10/106:15 am -
1 stop7h 12m
Sat 10/179:05 am -
2 stops11h 50m
Deal found 9/12![United Airlines logo]()
$394
This United Airlines deal was found by Cheapflights users on 9/12. 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 11/138:00 am -
2 stops12h 33m
Mon 11/162:30 pm -
1 stop6h 28m
Deal found 9/12![United Airlines logo]()
$425
This United Airlines deal was found by Cheapflights users on 9/14. 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.
Tue 9/296:15 am -
1 stop7h 12m
Sat 10/38:30 am -
2 stops12h 25m
Deal found 9/14![United Airlines logo]()
$444
This United Airlines deal was found by Cheapflights users on 9/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/68:00 am -
2 stops14h 10m
Tue 2/912:46 pm -
1 stop5h 44m
Deal found 9/10![United Airlines logo]()
$454
This United Airlines deal was found by Cheapflights users on 9/14. 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.
Tue 12/111:25 am -
2 stops12h 33m
Tue 12/87:30 pm -
2 stops13h 05m
Deal found 9/14![United Airlines logo]()
$479
This United Airlines deal was found by Cheapflights users on 9/14. 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 12/48:00 am -
2 stops15h 58m
Fri 12/115:35 pm -
2 stops15h 02m
Deal found 9/14![United Airlines logo]()
$479
This United Airlines deal was found by Cheapflights users on 9/14. 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.
Wed 12/211:25 am -
2 stops12h 33m
Wed 12/95:28 pm -
2 stops15h 07m
Deal found 9/14![United Airlines logo]()
$479
This United Airlines deal was found by Cheapflights users on 9/13. 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 1/3011:30 am -
3 stops14h 01m
Tue 2/26:57 am -
2 stops11h 33m
Deal found 9/13![United Airlines logo]()
$484
Last-minute flights from Columbia to SeattleDiscover last-minute flight deals from Columbia to Seattle. Data last updated September 15, 2026 and is based on user searches.
Discover last-minute flight deals from Columbia to Seattle. Data last updated September 15, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 9/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/2511:15 am -
1 stop9h 37m
Mon 9/2811:13 pm -
1 stop9h 26m
Deal found 9/11![United Airlines logo]()
$418
This United Airlines deal was found by Cheapflights users on 9/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/2511:15 am -
1 stop9h 37m
Tue 9/297:11 am -
2 stops11h 22m
Deal found 9/10![United Airlines logo]()
$424
This United Airlines deal was found by Cheapflights users on 9/14. 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.
Tue 9/296:15 am -
1 stop7h 12m
Sat 10/38:30 am -
2 stops12h 25m
Deal found 9/14![United Airlines logo]()
$444
This American Airlines deal was found by Cheapflights users on 9/10. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/95:00 pm -
1 stop9h 10m
Sun 10/1811:59 pm -
1 stop7h 59m
Deal found 9/10![American Airlines logo]()
$348
This United Airlines deal was found by Cheapflights users on 9/12. 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 10/106:15 am -
1 stop7h 12m
Sat 10/179:05 am -
2 stops11h 50m
Deal found 9/12![United Airlines logo]()
$394
This United Airlines deal was found by Cheapflights users on 9/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/293:00 pm -
1 stop10h 17m
Sat 10/317:00 am -
2 stops11h 41m
Deal found 9/11![United Airlines logo]()
$373
This United Airlines deal was found by Cheapflights users on 9/13. 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 10/293:00 pm -
1 stop10h 17m
Tue 11/39:05 am -
2 stops11h 53m
Deal found 9/13![United Airlines logo]()
$417
One-way flights from Columbia to SeattleSearch for one-way flight options from Columbia to Seattle. Find affordable one-way fares based on user searches. Data last updated September 15, 2026.
Search for one-way flight options from Columbia to Seattle. Find affordable one-way fares based on user searches. Data last updated September 15, 2026.
This American Airlines deal was found by Cheapflights users on 9/14. 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 11/36:47 am -
1 stop10h 04m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/14![American Airlines logo]()
$383
This United Airlines deal was found by Cheapflights users on 9/14. 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.
Tue 11/39:01 am -
2 stops13h 46m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/14![United Airlines logo]()
$389
This United Airlines deal was found by Cheapflights users on 9/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/2911:15 am -
1 stop9h 37m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![United Airlines logo]()
$453
This United Airlines deal was found by Cheapflights users on 9/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/303:19 pm -
3 stops20h 43m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![United Airlines logo]()
$555
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 September 15, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $348 (American Airlines) |
Popular in | November |
Cheapest in | May |
Average price | $436 |
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 7,457,451 searches. Data last updated September 15, 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
Cheapest round-trip
ColumbiaSeattle
COU Columbia Regional - SEA Seattle/Tacoma Intl
COUSEA
Columbia Regional
Thu 1/7
11:30 am-8:48 pm
2 stops11h 18m
Seattle/Tacoma Intl
Mon 1/11
2:30 pm-11:22 pm
1 stop6h 52m
$354
ColumbiaSeattle
COU Columbia Regional - SEA Seattle/Tacoma Intl
COUSEA
Columbia Regional
Tue 11/3
6:47 am-2:51 pm
1 stop10h 04m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$383
ColumbiaSeattle
COU Columbia Regional - SEA Seattle/Tacoma Intl
COUSEA
Columbia Regional
Tue 11/3
9:01 am-8:47 pm
2 stops13h 46m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$389
ColumbiaSeattle
COU Columbia Regional - SEA Seattle/Tacoma Intl
COUSEA
Columbia Regional
Sat 10/10
6:15 am-11:27 am
1 stop7h 12m
Seattle/Tacoma Intl
Sat 10/17
9:05 am-10:55 pm
2 stops11h 50m
$394
ColumbiaSeattle
COU Columbia Regional - SEA Seattle/Tacoma Intl
COUSEA
Columbia Regional
Fri 11/13
8:00 am-6:33 pm
2 stops12h 33m
Seattle/Tacoma Intl
Mon 11/16
2:30 pm-10:58 pm
1 stop6h 28m
$425
ColumbiaSeattle
COU Columbia Regional - SEA Seattle/Tacoma Intl
COUSEA
Columbia Regional
Tue 9/29
6:15 am-11:27 am
1 stop7h 12m
Seattle/Tacoma Intl
Sat 10/3
8:30 am-10:55 pm
2 stops12h 25m
$444
Quickest round-trip
ColumbiaSeattle
COU Columbia Regional - SEA Seattle/Tacoma Intl
COUSEA
Columbia Regional
Wed 9/30
9:00 am-1:21 pm
1 stop6h 21m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$453
ColumbiaSeattle
COU Columbia Regional - SEA Seattle/Tacoma Intl
COUSEA
Columbia Regional
Tue 9/29
11:15 am-6:52 pm
1 stop9h 37m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-2:00 am
Nonstop0h 00m
$453
ColumbiaSeattle
COU Columbia Regional - SEA Seattle/Tacoma Intl
COUSEA
Columbia Regional
Sat 2/6
8:00 am-8:10 pm
2 stops14h 10m
Seattle/Tacoma Intl
Tue 2/9
12:46 pm-8:30 pm
1 stop5h 44m
$454
ColumbiaSeattle
COU Columbia Regional - SEA Seattle/Tacoma Intl
COUSEA
Columbia Regional
Tue 12/1
11:25 am-9:58 pm
2 stops12h 33m
Seattle/Tacoma Intl
Tue 12/8
7:30 pm-10:35 am
2 stops13h 05m
$479
Showing 1-10 of 13 resultsSorted 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 September.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- 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.
COU-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 Columbia to Seattle
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 September 15, 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.
Crew
8.1
Boarding
7.7
Overall
7.4
Comfort
7.3
Entertainment
7.1
Food
6.7
Reviews
1 / 20
8.0
ExcellentAsha,Sep 2026
LGA - IAH
Crew
8.1
Boarding
7.7
Overall
7.4
Comfort
7.3
Entertainment
7.1
Food
6.7
Reviews
1 / 20
8.0
ExcellentAsha,Sep 2026
LGA - IAH
Crew
8.1
Boarding
7.7
Overall
7.4
Comfort
7.3
Entertainment
7.1
Food
6.7
Reviews
1 / 20
8.0
ExcellentAsha,Sep 2026
LGA - IAH
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.
Traveling to a place near Seattle?
Book flights to Seattle if you plan to visit one of these locationsSeaTac
Renton
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Puyallup
Lynnwood
Centralia
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Browse thousands of different options on Cheapflights for your next trip
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Columbia and Seattle flights
Browse other Columbia and Seattle flight options. Last updated on September 15, 2026.
Other flights from Columbia
Browse through other flights departing from Columbia. Flights are based on user searches made on Cheapflights and were last updated on September 15, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Other flights to Seattle
Explore flights to Seattle departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on September 15, 2026.
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 7,457,451 searches. Data last updated September 15, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$323 | Average$523 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$338 | Average$463 | FlexibilityNo cancel fee | On-time71% |