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$182+ 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 1/21. Fares are subject to change and may not be available on all flights or dates of travel.
SJO — SEA
Jan 14 — Jan 211
Wed 1/14
Wed 1/21
1 adult, Economy
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Cheap flight deals from Costa Rica to Seattle

Cheapest flights from Costa Rica to Seattle
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 December 15, 2025.

This United Airlines deal was found by Cheapflights users on 12/15. 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 12/256:30 amSJO - SEA
1 stop20h 04mUnited Airlines
Sun 1/45:00 amSEA - SJO
1 stop15h 32mUnited Airlines
Deal found 12/15$392
This United Airlines deal was found by Cheapflights users on 12/13. 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 12/209:40 amSJO - SEA
1 stop17h 19mUnited Airlines
Sun 1/411:59 pmSEA - SJO
1 stop20h 33mUnited Airlines
Deal found 12/13$399
This Avianca deal was found by Cheapflights users on 12/15. 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 12/187:45 amSJO - SEA
1 stop16h 20mMultiple Airlines
Mon 2/29:00 amSEA - SJO
2 stops12h 15mMultiple Airlines
Deal found 12/15$413
This SmartFares deal was found by Cheapflights users on 12/15. 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 12/183:05 pmSJO - SEA
2 stops19h 57mMultiple Airlines
Fri 1/168:06 amSEA - SJO
2 stops13h 34mMultiple Airlines
Deal found 12/15$419
This American Airlines deal was found by Cheapflights users on 12/14. 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.
Wed 12/1712:34 amSJO - SEA
2 stops15h 37mAmerican Airlines
Sun 2/111:12 pmSEA - SJO
2 stops12h 42mAmerican Airlines
Deal found 12/14$422
This United Airlines deal was found by Cheapflights users on 12/13. 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 12/206:40 amSJO - SEA
2 stops20h 19mUnited Airlines
Sat 1/103:30 pmSEA - SJO
2 stops19h 45mUnited Airlines
Deal found 12/13$423
This United Airlines deal was found by Cheapflights users on 12/15. 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 12/2512:35 pmSJO - SEA
1 stop13h 59mUnited Airlines
Thu 1/11:35 pmSEA - SJO
1 stop16h 57mUnited Airlines
Deal found 12/15$424
This American Airlines deal was found by Cheapflights users on 12/15. 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 12/241:50 pmSJO - SEA
1 stop11h 52mAmerican Airlines
Sun 1/45:23 amSEA - SJO
1 stop15h 22mAmerican Airlines
Deal found 12/15$429
This United Airlines deal was found by Cheapflights users on 12/13. 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.
Tue 12/232:20 pmSJO - SEA
2 stops25h 38mUnited Airlines
Sun 1/119:25 amSEA - SJO
2 stops25h 31mUnited Airlines
Deal found 12/13$434

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 December 15, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$366
(United Airlines)

One-way from

$182
(American Airlines)

Popular in

June

Cheapest in

October

Average price

$562
Provider with most accurate pricing for San José Juan Santamaria Intl-Seattle/Tacoma Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for San José Juan Santamaria Intl-Seattle/Tacoma Intl flights.
Search Deals
From Costa Rica to Seattle/Tacoma Intl
Search Deals
One-way flight from Costa Rica to Seattle/Tacoma Intl
Search Deals
Highest demand for flights based on searches. 1% potential increase in price ($11 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($8 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

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 December 15, 2025.
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

LiberiaSeattle

LIR - SEA

LIRSEA

Liberia

Wed 1/28

8:35 am-12:51 am

2 stops18h 16m

Seattle/Tacoma Intl

Wed 2/4

12:35 pm-12:55 pm

2 stops22h 20m

$366

LiberiaSeattle

LIR - SEA

LIRSEA

Liberia

Wed 1/28

2:05 pm-11:15 pm

1 stop11h 10m

Seattle/Tacoma Intl

Wed 2/4

3:35 pm-1:24 pm

1 stop19h 49m

$366

LiberiaSeattle

LIR - SEA

LIRSEA

Liberia

Thu 1/15

8:35 am-10:59 pm

1 stop16h 24m

Seattle/Tacoma Intl

Mon 1/19

7:00 am-6:37 pm

1 stop9h 37m

$375

LiberiaSeattle

LIR - SEA

LIRSEA

Liberia

Thu 1/29

3:23 pm-11:51 pm

1 stop10h 28m

Seattle/Tacoma Intl

Thu 2/5

11:11 pm-12:12 pm

1 stop11h 01m

$396

San JoséSeattle

SJO - SEA

SJOSEA

San José Juan Santamaria Intl

Tue 5/5

6:10 am-8:57 pm

2 stops15h 47m

Seattle/Tacoma Intl

Wed 5/13

8:25 am-10:40 pm

1 stop13h 15m

$398

San JoséSeattle

SJO - SEA

SJOSEA

San José Juan Santamaria Intl

Wed 5/6

4:50 pm-9:58 pm

1 stop30h 08m

Seattle/Tacoma Intl

Mon 5/18

7:00 pm-11:15 pm

1 stop27h 15m

$400

San JoséSeattle

SJO - SEA

SJOSEA

San José Juan Santamaria Intl

Thu 12/25

12:35 pm-12:34 am

1 stop13h 59m

Seattle/Tacoma Intl

Sat 1/17

10:58 am-12:56 pm

1 stop23h 58m

$401

San JoséSeattle

SJO - SEA

SJOSEA

San José Juan Santamaria Intl

Thu 2/5

6:38 am-6:05 pm

2 stops13h 27m

Seattle/Tacoma Intl

Mon 2/9

9:45 pm-1:54 pm

2 stops14h 09m

$405

San JoséSeattle

SJO - SEA

SJOSEA

San José Juan Santamaria Intl

Thu 3/5

9:40 am-8:58 pm

1 stop13h 18m

Seattle/Tacoma Intl

Mon 3/9

7:35 pm-7:32 am

1 stop10h 57m

$420

San JoséSeattle

SJO - SEA

SJOSEA

San José Juan Santamaria Intl

Thu 12/25

8:45 am-12:34 am

1 stop17h 49m

Seattle/Tacoma Intl

Thu 1/1

5:05 pm-6:25 am

1 stop11h 20m

$424

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/13

Showing 1-10 of 29 results
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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 $483). 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 CR to SEA?

Find hourly flight availability from Costa Rica 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 December 15, 2025.

One of the essential ways to save on airfare from Costa Rica to Seattle is to remain as flexible as possible. Flights that are in the evening tend to be the most expensive. A flight at noon could potentially save you up to 28% on airfare.

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 December 15, 2025.
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.
Alaska Airlines
8.0
Very good
11,455 reviews

Overall

8.0

Comfort

7.8

Entertainment

7.0

Food

7.1

Boarding

8.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Dec 2025

SJC - SEA

The flight was great. Don’t have to make it better. Everything was OK.
Alaska Airlines
8.0
Very good
11,455 reviews
Alaska Airlines
8.0
Very good
11,455 reviews

Overall

8.0

Comfort

7.8

Entertainment

7.0

Food

7.1

Boarding

8.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Dec 2025

SJC - SEA

The flight was great. Don’t have to make it better. Everything was OK.
United Airlines
7.4
Good
9,092 reviews
Alaska Airlines
8.0
Very good
11,455 reviews

Overall

8.0

Comfort

7.8

Entertainment

7.0

Food

7.1

Boarding

8.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Dec 2025

SJC - SEA

The flight was great. Don’t have to make it better. Everything was OK.
American Airlines
7.2
Good
11,049 reviews
Alaska Airlines
8.0
Very good
11,455 reviews

Overall

8.0

Comfort

7.8

Entertainment

7.0

Food

7.1

Boarding

8.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Dec 2025

SJC - SEA

The flight was great. Don’t have to make it better. Everything was OK.

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.

  • What airport do you fly into for flights to Seattle from Costa Rica?

    Seattle/Tacoma Intl (SEA) is the airport you will fly into if you book a flight from Costa Rica to Seattle. It is only a 11.4 mi journey from Seattle/Tacoma Intl (SEA) to Seattle’s city center.

  • How long is the flight from Costa Rica to Seattle?

    There are many flights that can get you from Costa Rica to Seattle in 11h 10m. Fly via United Airlines, Delta, or American Airlines to get the fastest option. The distance from Costa Rica to Seattle is about 3321 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from Costa Rica to Seattle one-way?

    $196 is the cheapest one-way deal found within the past few days, from American Airlines. You may also be able to find cheap deals on Delta and Alaska Airlines, with prices starting from $198 and $212, respectively.

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

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

  • How can I find direct flights from Costa Rica to Seattle?

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

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

    Yes. Cheapflights offers flight deals from Costa Rica 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.

  • 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 $483). 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.

See more FAQs

Traveling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
Tacoma
SeaTac
Lakewood
Ocean Shores
Olympia
Edmonds
Lynnwood
Renton
Puyallup
Kirkland
Kent
Tukwila
Cle Elum
Marysville
Leavenworth
Fife
Aberdeen
Shoreline
Centralia
Federal Way

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Costa Rica to Seattle

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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 December 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$398Average$589FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$426Average$570FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$431Average$616FlexibilityNo cancel feeOn-time75%

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