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$175+ 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 11/7. Fares are subject to change and may not be available on all flights or dates of travel.
SJO — SEA
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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Cheap 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 September 11, 2025.

Round-trip from

$332
(United Airlines)

One-way from

$175
(Kiwi.com)

Popular in

December

Cheapest in

October

Average price

$545
From Costa Rica to Seattle/Tacoma Intl
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One-way flight from Costa Rica to Seattle/Tacoma Intl
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Highest demand for flights based on searches. 7% potential increase in price ($45 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($9 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find 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 September 11, 2025.

This Delta deal was found by Cheapflights users on 9/9. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/221:23 pmSJO - SEA
1 stop11h 31mDelta
Tue 10/283:45 pmSEA - SJO
1 stop19h 13mDelta
Deal found 9/9$332
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.
Tue 10/78:37 amSJO - SEA
1 stop11h 08mUnited Airlines
Wed 10/1511:10 pmSEA - SJO
1 stop12h 16mUnited Airlines
Deal found 9/11$341
This Alaska 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/271:11 amSJO - SEA
1 stop12h 51mAlaska Airlines
Mon 11/310:20 amSEA - SJO
1 stop12h 18mAlaska Airlines
Deal found 9/10$349
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 10/247:55 amSJO - SEA
1 stop16h 20mUnited Airlines
Sat 11/111:59 pmSEA - SJO
1 stop10h 26mUnited Airlines
Deal found 9/10$350
This Alaska 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/271:11 amSJO - SEA
1 stop14h 37mAlaska Airlines
Tue 11/45:20 amSEA - SJO
2 stops17h 18mAlaska Airlines
Deal found 9/10$353
This United Airlines deal was found by Cheapflights users on 9/9. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/108:37 amSJO - SEA
1 stop30h 47mUnited Airlines
Fri 10/177:00 amSEA - SJO
2 stops28h 26mUnited Airlines
Deal found 9/9$354
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 9/271:03 pmLIR - SEA
1 stop21h 40mUnited Airlines
Thu 10/26:55 pmSEA - LIR
2 stops39h 58mUnited Airlines
Deal found 9/10$357
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.
Wed 10/158:37 amSJO - SEA
1 stop11h 08mUnited Airlines
Wed 11/511:59 pmSEA - SJO
1 stop9h 26mUnited Airlines
Deal found 9/11$359
This American 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/33:08 pmLIR - SEA
1 stop10h 34mAmerican Airlines
Thu 11/1310:08 pmSEA - LIR
1 stop12h 10mAmerican Airlines
Deal found 9/11$360
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.
Sat 9/272:02 pmLIR - SEA
1 stop20h 17mAmerican Airlines
Thu 10/23:40 pmSEA - LIR
1 stop20h 22mAmerican Airlines
Deal found 9/10$363
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.
Sat 11/226:22 amSJO - SEA
1 stop20h 36mAmerican Airlines
Sat 12/61:04 amSEA - SJO
1 stop19h 24mAmerican Airlines
Deal found 9/10$367
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 11/111:35 amSJO - SEA
1 stop12h 11mUnited Airlines
Sat 11/151:20 pmSEA - SJO
2 stops20h 05mUnited Airlines
Deal found 9/10$368

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 September 11, 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

San JoséSeattle

SJO - SEA

SJOSEA

San José Juan Santamaria Intl

Wed 10/1

7:55 am-11:15 pm

2 stops16h 20m

Seattle/Tacoma Intl

Tue 10/7

5:31 pm-7:15 am

1 stop12h 44m

$332

San JoséSeattle

SJO - SEA

SJOSEA

San José Juan Santamaria Intl

Wed 10/22

1:23 pm-11:54 pm

1 stop11h 31m

Seattle/Tacoma Intl

Wed 10/29

3:45 pm-11:58 am

1 stop19h 13m

$332

San JoséSeattle

SJO - SEA

SJOSEA

San José Juan Santamaria Intl

Tue 10/28

1:11 am-1:02 pm

1 stop12h 51m

Seattle/Tacoma Intl

Mon 11/3

10:20 am-12:38 am

1 stop12h 18m

$349

San JoséSeattle

SJO - SEA

SJOSEA

San José Juan Santamaria Intl

Mon 10/27

1:11 am-1:02 pm

1 stop12h 51m

Seattle/Tacoma Intl

Mon 11/3

10:20 am-12:38 am

1 stop12h 18m

$349

San JoséSeattle

SJO - SEA

SJOSEA

San José Juan Santamaria Intl

Fri 10/24

1:30 pm-11:15 pm

1 stop10h 45m

Seattle/Tacoma Intl

Wed 11/5

2:40 pm-11:25 am

2 stops18h 45m

$350

San JoséSeattle

SJO - SEA

SJOSEA

San José Juan Santamaria Intl

Tue 10/28

8:40 am-6:25 pm

1 stop10h 45m

Seattle/Tacoma Intl

Thu 11/6

5:20 pm-1:15 pm

2 stops17h 55m

$350

San JoséSeattle

SJO - SEA

SJOSEA

San José Juan Santamaria Intl

Fri 10/24

1:30 pm-11:15 pm

1 stop10h 45m

Seattle/Tacoma Intl

Sat 11/1

2:41 pm-11:25 am

2 stops19h 44m

$350

San JoséSeattle

SJO - SEA

SJOSEA

San José Juan Santamaria Intl

Tue 10/28

7:45 am-12:59 am

2 stops18h 14m

Seattle/Tacoma Intl

Sun 11/2

11:59 pm-1:15 pm

1 stop11h 16m

$350

San JoséSeattle

SJO - SEA

SJOSEA

San José Juan Santamaria Intl

Wed 10/29

1:20 pm-10:46 pm

1 stop10h 26m

Seattle/Tacoma Intl

Sat 11/1

11:59 pm-11:25 am

1 stop10h 26m

$350

San JoséSeattle

SJO - SEA

SJOSEA

San José Juan Santamaria Intl

Wed 10/22

1:30 pm-11:15 pm

1 stop10h 45m

Seattle/Tacoma Intl

Sun 11/2

11:59 pm-11:25 am

1 stop9h 26m

$350

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/9

Showing 1-10 of 30 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, January is the cheapest month in which you can book a flight from Costa Rica to Seattle (average of $238). Flying from Costa Rica to Seattle in June is currently the most expensive (average of $388). 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 September 11, 2025.

When flying from Costa Rica to Seattle, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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 11, 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
10,000 reviews

Food

7.1

Boarding

8.1

Overall

8.0

Entertainment

7.0

Crew

8.5

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Boarding

8.1

Overall

8.0

Entertainment

7.0

Crew

8.5

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why
United Airlines
7.4
Good
8,937 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Boarding

8.1

Overall

8.0

Entertainment

7.0

Crew

8.5

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Food

7.1

Boarding

8.1

Overall

8.0

Entertainment

7.0

Crew

8.5

Comfort

7.8

Reviews

1 / 20
10.0
Excellent

Anonymous,Aug 2025

MFR - SEA

Great smooth flight. Was hour and half late though. Don't know why

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 31m. Fly via United Airlines, Delta, or Alaska Airlines to get the fastest option. The distance from Costa Rica to Seattle is about 3405 mi. This flight may include one or multiple stops.

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

    $189 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 United Airlines and Alaska Airlines, with prices starting from $195 and $267, 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, January is the cheapest month in which you can book a flight from Costa Rica to Seattle (average of $238). Flying from Costa Rica to Seattle in June is currently the most expensive (average of $388). 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
SeaTac
Tukwila
Tacoma
Lakewood
Ocean Shores
Lynnwood
Edmonds
Leavenworth
Lacey
Renton
Olympia
Kent
Federal Way
Cle Elum
Puyallup
Chehalis
Kirkland
Issaquah
Aberdeen
Shoreline

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Costa Rica to Seattle

See prices for flight routes from nearby airports that may be better suited for you.
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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 September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$429Average$636FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$445Average$573FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$447Average$648FlexibilityNo cancel feeOn-time75%

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