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$180+ 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 9/29. Fares are subject to change and may not be available on all flights or dates of travel.
SJO — SEA
Aug 4 — Aug 111
Mon 8/4
Mon 8/11
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 July 30, 2025.

Round-trip from

$331
(United Airlines)

One-way from

$180
(Avianca)

Popular in

December

Cheapest in

October

Average price

$549
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. 8% potential increase in price ($56 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($11 potential savings vs. average RT price).
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Average for round-trip flights in July 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 July 30, 2025.

This United Airlines deal was found by Cheapflights users on 7/29. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/161:20 pmLIR - SEA
1 stop10h 32mUnited Airlines
Tue 9/2311:58 pmSEA - LIR
1 stop11h 12mUnited Airlines
Deal found 7/29$331
This American Airlines deal was found by Cheapflights users on 7/29. 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.
Fri 9/122:02 pmLIR - SEA
1 stop20h 17mAmerican Airlines
Fri 9/195:43 pmSEA - LIR
1 stop18h 19mAmerican Airlines
Deal found 7/29$349
This Southwest deal was found by Cheapflights users on 7/28. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/49:00 amSJO - SEA
2 stops15h 55mSouthwest
Wed 11/122:20 pmSEA - SJO
2 stops20h 55mSouthwest
Deal found 7/28$439
This Alaska Airlines deal was found by Cheapflights users on 7/30. 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.
Tue 9/1611:20 amLIR - SEA
1 stop10h 04mAlaska Airlines
Tue 9/232:51 pmSEA - LIR
2 stops14h 29mAlaska Airlines
Deal found 7/30$440
This American Airlines deal was found by Cheapflights users on 7/30. 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 8/186:00 amSJO - SEA
1 stop19h 14mAmerican Airlines
Tue 8/268:08 pmSEA - SJO
1 stop16h 32mAmerican Airlines
Deal found 7/30$443
This United Airlines deal was found by Cheapflights users on 7/30. 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 9/38:37 amSJO - SEA
1 stop13h 17mUnited Airlines
Sat 9/132:29 pmSEA - SJO
2 stops28h 08mUnited Airlines
Deal found 7/30$446
This Avianca deal was found by Cheapflights users on 7/29. 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 Avianca is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/294:20 pmSJO - SEA
2 stops20h 23mMultiple Airlines
Fri 10/2410:10 amSEA - SJO
2 stops12h 05mMultiple Airlines
Deal found 7/29$449
This Alaska Airlines deal was found by Cheapflights users on 7/28. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/31:58 amSJO - SEA
2 stops21h 31mAlaska Airlines
Wed 11/128:42 amSEA - SJO
2 stops13h 56mAlaska Airlines
Deal found 7/28$450
This American Airlines deal was found by Cheapflights users on 7/29. 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.
Fri 9/1212:49 pmLIR - SEA
1 stop12h 10mMultiple Airlines
Thu 9/1812:33 amSEA - LIR
1 stop11h 29mMultiple Airlines
Deal found 7/29$505
This Ovago deal was found by Cheapflights users on 7/29. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/91:25 pmLIR - SEA
2 stops24h 33mWestJet
Tue 8/127:35 pmSEA - LIR
2 stops15h 49mWestJet
Deal found 7/29$1,323

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 July 30, 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

Tue 9/16

1:20 pm-10:52 pm

1 stop10h 32m

Seattle/Tacoma Intl

Tue 9/23

11:58 pm-12:10 pm

1 stop11h 12m

$331

LiberiaSeattle

LIR - SEA

LIRSEA

Liberia

Fri 9/12

2:02 pm-9:19 am

1 stop20h 17m

Seattle/Tacoma Intl

Fri 9/19

5:43 pm-1:02 pm

1 stop18h 19m

$349

LiberiaSeattle

LIR - SEA

LIRSEA

Liberia

Tue 9/16

11:20 am-8:24 pm

1 stop10h 04m

Seattle/Tacoma Intl

Tue 9/23

2:51 pm-6:20 am

2 stops14h 29m

$440

San JoséSeattle

SJO - SEA

SJOSEA

San José Juan Santamaria Intl

Mon 8/18

6:00 am-12:14 am

1 stop19h 14m

Seattle/Tacoma Intl

Tue 8/26

8:08 pm-1:40 pm

1 stop16h 32m

$443

San JoséSeattle

SJO - SEA

SJOSEA

San José Juan Santamaria Intl

Wed 9/3

8:37 am-8:54 pm

1 stop13h 17m

Seattle/Tacoma Intl

Sat 9/13

2:29 pm-7:37 pm

2 stops28h 08m

$446

San JoséSeattle

SJO - SEA

SJOSEA

San José Juan Santamaria Intl

Mon 9/29

4:20 pm-11:43 am

2 stops20h 23m

Seattle/Tacoma Intl

Fri 10/24

10:10 am-11:15 pm

2 stops12h 05m

$449

San JoséSeattle

SJO - SEA

SJOSEA

San José Juan Santamaria Intl

Tue 8/19

8:50 am-11:10 pm

2 stops15h 20m

Seattle/Tacoma Intl

Tue 8/26

11:10 pm-6:55 pm

2 stops18h 45m

$482

LiberiaSeattle

LIR - SEA

LIRSEA

Liberia

Fri 9/12

12:49 pm-11:59 pm

1 stop12h 10m

Seattle/Tacoma Intl

Thu 9/18

12:33 am-1:02 pm

1 stop11h 29m

$505

San JoséSeattle

SJO - SEA

SJOSEA

San José Juan Santamaria Intl

Mon 8/11

12:50 am-8:35 pm

2 stops20h 45m

Seattle/Tacoma Intl

Wed 9/24

9:40 pm-7:04 pm

2 stops44h 24m

$547

LiberiaSeattle

LIR - SEA

LIRSEA

Liberia

Sat 8/9

1:25 pm-12:58 pm

2 stops24h 33m

Seattle/Tacoma Intl

Tue 8/12

7:35 pm-12:24 pm

2 stops15h 49m

$1,323

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/29

Showing 1-10 of 20 results
1
2

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 $389). 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 July 30, 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 July 30, 2025.
Read reviews from past customers who have flown Alaska Airlines, Southwest, and United 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

Crew

8.5

Entertainment

7.1

Boarding

8.1

Food

7.1

Comfort

7.8

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

YEG - SEA

Alaska airline excellent airline pilot smooth, landing, crew staff very nice friendly behave
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Entertainment

7.1

Boarding

8.1

Food

7.1

Comfort

7.8

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

YEG - SEA

Alaska airline excellent airline pilot smooth, landing, crew staff very nice friendly behave
Southwest
8.0
Very good
4,241 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Entertainment

7.1

Boarding

8.1

Food

7.1

Comfort

7.8

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

YEG - SEA

Alaska airline excellent airline pilot smooth, landing, crew staff very nice friendly behave
United Airlines
7.4
Good
8,896 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Entertainment

7.1

Boarding

8.1

Food

7.1

Comfort

7.8

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

YEG - SEA

Alaska airline excellent airline pilot smooth, landing, crew staff very nice friendly behave
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Entertainment

7.1

Boarding

8.1

Food

7.1

Comfort

7.8

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

YEG - SEA

Alaska airline excellent airline pilot smooth, landing, crew staff very nice friendly behave
WestJet
7.2
Good
2,975 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Entertainment

7.1

Boarding

8.1

Food

7.1

Comfort

7.8

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Jul 2025

YEG - SEA

Alaska airline excellent airline pilot smooth, landing, crew staff very nice friendly behave

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.

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

    $187 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 Spirit Airlines, with prices starting from $195 and $323, 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 $389). 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
Ocean Shores
Lakewood
Lynnwood
Lacey
Leavenworth
Renton
Olympia
Puyallup
Kent
Cle Elum
Chehalis
Kirkland
Issaquah
Aberdeen
Shoreline
Federal Way
Shelton

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

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Top 4 airlines flying from Costa Rica to Seattle

Discover the top 4 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 July 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$433Average$628FlexibilityNo cancel feeOn-time71%
DeltaCheapest$440Average$513FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$443Average$581FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$447Average$648FlexibilityNo cancel feeOn-time75%

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