$204+ Cheap flights from Costa Rica to Seattle (SEA)
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/5. Fares are subject to change and may not be available on all flights or dates of travel.
SJO — SEA
Feb 28 — Mar 71
1 adult, Economy
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Cheapest flights from Costa Rica to SeattleExplore the most affordable flight options available from Costa Rica to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 29, 2026.
Explore the most affordable flight options available from Costa Rica to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 29, 2026.
This American Airlines deal was found by Cheapflights users on 1/29. 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.
Thu 2/123:20 pm
SJO
- SEA
1 stop11h 35m
American Airlines
Sun 2/2212:07 am
SEA
- SJO
1 stop18h 05m
American Airlines
Deal found 1/29![American Airlines logo]()
$335
This American Airlines deal was found by Cheapflights users on 1/27. 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.
Thu 2/197:00 am
SJO
- SEA
1 stop19h 24m
American Airlines
Tue 2/2412:07 am
SEA
- SJO
1 stop18h 05m
American Airlines
Deal found 1/27![American Airlines logo]()
$342
This Sembo deal was found by Cheapflights users on 1/27. 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 Sembo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/244:35 pm
SJO
- SEA
2 stops26h 22m
Multiple Airlines
Mon 8/315:55 pm
SEA
- SJO
2 stops13h 50m
Multiple Airlines
Deal found 1/27![Multiple Airlines logo]()
$347
This Avianca deal was found by Cheapflights users on 1/28. 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 Avianca is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/295:45 am
SJO
- SEA
2 stops15h 20m
Multiple Airlines
Sat 9/59:50 am
SEA
- SJO
2 stops12h 25m
Multiple Airlines
Deal found 1/28![Multiple Airlines logo]()
$350
This Avianca deal was found by Cheapflights users on 1/27. 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 Avianca is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/45:05 am
SJO
- SEA
2 stops13h 33m
Multiple Airlines
Tue 5/127:40 am
SEA
- SJO
2 stops14h 35m
Multiple Airlines
Deal found 1/27![Multiple Airlines logo]()
$351
This Trip.com deal was found by Cheapflights users on 1/27. 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 9/175:45 am
SJO
- SEA
2 stops15h 20m
Multiple Airlines
Thu 9/248:00 am
SEA
- SJO
2 stops14h 15m
Multiple Airlines
Deal found 1/27![Multiple Airlines logo]()
$358
This Avianca deal was found by Cheapflights users on 1/27. 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 Avianca is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/235:45 am
SJO
- SEA
2 stops13h 55m
Multiple Airlines
Sun 5/37:15 pm
SEA
- SJO
2 stops12h 30m
Multiple Airlines
Deal found 1/27![Multiple Airlines logo]()
$360
This Avianca deal was found by Cheapflights users on 1/28. 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 Avianca is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/215:45 am
SJO
- SEA
2 stops13h 12m
Multiple Airlines
Sat 10/37:00 am
SEA
- SJO
2 stops15h 15m
Multiple Airlines
Deal found 1/28![Multiple Airlines logo]()
$369
This American Airlines deal was found by Cheapflights users on 1/28. 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 4/811:35 pm
SJO
- SEA
1 stop11h 00m
American Airlines
Sat 4/1810:29 pm
SEA
- SJO
1 stop11h 56m
American Airlines
Deal found 1/28![American Airlines logo]()
$371
This SmartFares deal was found by Cheapflights users on 1/27. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/309:40 am
SJO
- SEA
2 stops24h 49m
Multiple Airlines
Mon 5/46:06 pm
SEA
- SJO
2 stops13h 39m
Multiple Airlines
Deal found 1/27![Multiple Airlines logo]()
$375
This Alaska Airlines deal was found by Cheapflights users on 1/26. 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.
Thu 3/58:05 am
LIR
- SEA
2 stops17h 02m
Alaska Airlines
Mon 3/97:45 am
SEA
- LIR
2 stops21h 51m
Alaska Airlines
Deal found 1/26![Alaska Airlines logo]()
$440
This deal was found by Cheapflights users on 1/27. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/58:05 am
LIR
- SEA
1 stop12h 52m
Alaska Airlines
Sat 3/77:05 pm
SEA
- LIR
1 stop9h 33m
Alaska Airlines
Deal found 1/27![Alaska Airlines logo]()
$539
Find flight deals from Costa Rica to Seattle
Keep the following information in mind while searching for Costa Rica to Seattle flight deals. Data was last updated January 29, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $335 (American Airlines) |
One-way from | $204 (American Airlines) |
Popular in | June |
Cheapest in | October |
Average price | $607 |
Cheapflights Fare Finder
Customize your flight search to find flights from Costa Rica 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 January 29, 2026.
Use the filters below to find and compare flights from Costa Rica to Seattle that are best for you.
Fly from
Costa Rica
Fly to
Seattle
Route
Depart
Return
Price
San JoséSeattle
SJO - SEA
SJOSEA
San José Juan Santamaria Intl
Thu 2/12
3:20 pm-12:55 am
1 stop11h 35m
Seattle/Tacoma Intl
Sun 2/22
12:07 am-8:12 pm
1 stop18h 05m
$335
San JoséSeattle
SJO - SEA
SJOSEA
San José Juan Santamaria Intl
Thu 2/12
7:00 am-11:04 pm
1 stop18h 04m
Seattle/Tacoma Intl
Tue 2/24
7:15 am-8:12 pm
1 stop10h 57m
$335
San JoséSeattle
SJO - SEA
SJOSEA
San José Juan Santamaria Intl
Wed 4/8
11:35 pm-9:35 am
1 stop11h 00m
Seattle/Tacoma Intl
Mon 4/13
11:55 pm-1:22 pm
1 stop12h 27m
$380
San JoséSeattle
SJO - SEA
SJOSEA
San José Juan Santamaria Intl
Thu 4/23
11:35 pm-10:47 pm
1 stop24h 12m
Seattle/Tacoma Intl
Wed 4/29
10:25 am-9:36 pm
1 stop10h 11m
$380
San JoséSeattle
SJO - SEA
SJOSEA
San José Juan Santamaria Intl
Sat 4/25
5:45 am-6:40 pm
2 stops13h 55m
Seattle/Tacoma Intl
Mon 5/4
9:06 pm-11:15 pm
2 stops25h 09m
$386
San JoséSeattle
SJO - SEA
SJOSEA
San José Juan Santamaria Intl
Wed 2/11
12:35 am-10:55 am
1 stop12h 20m
Seattle/Tacoma Intl
Mon 2/23
10:08 pm-12:31 pm
2 stops12h 23m
$392
San JoséSeattle
SJO - SEA
SJOSEA
San José Juan Santamaria Intl
Tue 2/24
4:15 pm-7:58 pm
2 stops29h 43m
Seattle/Tacoma Intl
Tue 3/3
6:10 am-11:15 pm
2 stops15h 05m
$404
San JoséSeattle
SJO - SEA
SJOSEA
San José Juan Santamaria Intl
Mon 2/9
7:09 am-10:20 pm
1 stop17h 11m
Seattle/Tacoma Intl
Mon 2/16
12:07 am-8:12 pm
1 stop18h 05m
$408
San JoséSeattle
SJO - SEA
SJOSEA
San José Juan Santamaria Intl
Wed 2/25
5:30 am-10:55 am
2 stops31h 25m
Seattle/Tacoma Intl
Wed 3/4
3:50 pm-11:13 pm
2 stops29h 23m
$422
San JoséSeattle
SJO - SEA
SJOSEA
San José Juan Santamaria Intl
Thu 2/12
7:50 pm-6:57 pm
3 stops25h 07m
Seattle/Tacoma Intl
Mon 2/23
7:05 pm-1:40 pm
2 stops16h 35m
$425
Showing 1-10 of 34 results
Best time to book a flight from Costa Rica to Seattle
Have a flexible travel schedule? Discover the best time to fly to Seattle from Costa Rica 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 Costa Rica to Seattle
What is the cheapest month to book a flight from Costa Rica to Seattle?
Currently, December is the cheapest month in which you can book a flight from Costa Rica to Seattle (average of $358). Flying from Costa Rica to Seattle in June is currently the most expensive (average of $479). 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.
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 January 29, 2026.
Read reviews from past customers who have flown Alaska Airlines, United Airlines, and American Airlines from Costa Rica to Seattle. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
7.0
Comfort
7.8
Crew
8.5
Boarding
8.1
Overall
8.0
Food
7.1
Reviews
1 / 20
10.0
ExcellentAnonymous,Dec 2025
SJC - SEA
Entertainment
7.0
Comfort
7.8
Crew
8.5
Boarding
8.1
Overall
8.0
Food
7.1
Reviews
1 / 20
10.0
ExcellentAnonymous,Dec 2025
SJC - SEA
Entertainment
7.0
Comfort
7.8
Crew
8.5
Boarding
8.1
Overall
8.0
Food
7.1
Reviews
1 / 20
10.0
ExcellentAnonymous,Dec 2025
SJC - SEA
Entertainment
7.0
Comfort
7.8
Crew
8.5
Boarding
8.1
Overall
8.0
Food
7.1
Reviews
1 / 20
10.0
ExcellentAnonymous,Dec 2025
SJC - SEA
Related info for your journey
Find useful and relevant information for your journey from Costa Rica 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 locationsTacoma
SeaTac
Lakewood
Ocean Shores
Olympia
Lynnwood
Lacey
Edmonds
Renton
Puyallup
Kirkland
Kent
Tukwila
Fife
Aberdeen
Shoreline
Marysville
Centralia
Federal Way
Chehalis
Browse thousands of different options on Cheapflights for your next trip
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Alternative routes for Costa Rica to Seattle
See prices for flight routes from nearby airports that may be better suited for you.
Top 3 airlines flying from Costa Rica to Seattle
Discover the top 3 airlines that operate flights from Costa Rica 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 January 29, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$398 | Average$603 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$426 | Average$568 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$447 | Average$602 | FlexibilityNo cancel fee | On-time75% |