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$279+ 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 6/5. Fares are subject to change and may not be available on all flights or dates of travel.
SJO — SEA
Jun 6 — Jun 131
Sat 6/6
Sat 6/13
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 May 7, 2026.

This eDestinos deal was found by Cheapflights users on 5/3. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/35:45 am
SJO
-
SEA
1 stop17h 12m
Multiple Airlines
Sat 10/108:15 am
SEA
-
SJO
1 stop14h 00m
Multiple Airlines
Deal found 5/3$415
This eDestinos deal was found by Cheapflights users on 5/6. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/225:45 am
SJO
-
SEA
1 stop31h 31m
Multiple Airlines
Wed 10/288:05 am
SEA
-
SJO
1 stop24h 30m
Multiple Airlines
Deal found 5/6$430
This eDestinos deal was found by Cheapflights users on 5/5. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/105:45 am
SJO
-
SEA
1 stop15h 57m
Multiple Airlines
Thu 9/249:56 am
SEA
-
SJO
1 stop12h 19m
Multiple Airlines
Deal found 5/5$431
This Avianca deal was found by Cheapflights users on 5/5. 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 10/245:45 am
SJO
-
SEA
2 stops14h 03m
Multiple Airlines
Sun 11/111:06 am
SEA
-
SJO
2 stops20h 29m
Multiple Airlines
Deal found 5/5$438
This eDestinos deal was found by Cheapflights users on 5/6. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/164:35 pm
SJO
-
SEA
1 stop28h 13m
Multiple Airlines
Wed 10/211:59 pm
SEA
-
SJO
1 stop17h 31m
Multiple Airlines
Deal found 5/6$445
This eDestinos deal was found by Cheapflights users on 5/5. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/105:45 am
SJO
-
SEA
1 stop16h 57m
Multiple Airlines
Sun 9/207:00 am
SEA
-
SJO
1 stop24h 30m
Multiple Airlines
Deal found 5/5$446
This Avianca deal was found by Cheapflights users on 5/6. 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 9/195:45 am
SJO
-
SEA
2 stops13h 48m
Multiple Airlines
Sun 9/279:27 am
SEA
-
SJO
2 stops22h 03m
Multiple Airlines
Deal found 5/6$447
This eDestinos deal was found by Cheapflights users on 5/5. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/14:15 pm
SJO
-
SEA
1 stop30h 00m
Multiple Airlines
Fri 11/611:06 am
SEA
-
SJO
1 stop20h 29m
Multiple Airlines
Deal found 5/5$450
This Avianca deal was found by Cheapflights users on 5/6. 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 10/225:45 am
SJO
-
SEA
2 stops15h 08m
Multiple Airlines
Tue 10/2710:05 am
SEA
-
SJO
2 stops12h 10m
Multiple Airlines
Deal found 5/6$455
This Expedia deal was found by Cheapflights users on 5/2. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/12:00 pm
LIR
-
SEA
1 stop31h 56m
JetBlue
Sun 6/711:52 pm
SEA
-
LIR
1 stop11h 48m
JetBlue
Deal found 5/2$663
This United Airlines deal was found by Cheapflights users on 5/3. 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 9/11:20 pm
LIR
-
SEA
2 stops21h 38m
United Airlines
Wed 10/2811:59 pm
SEA
-
LIR
1 stop11h 11m
United Airlines
Deal found 5/3$713
This United Airlines deal was found by Cheapflights users on 5/3. 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 10/81:20 pm
LIR
-
SEA
1 stop10h 20m
United Airlines
Mon 10/1211:59 pm
SEA
-
LIR
1 stop11h 11m
United Airlines
Deal found 5/3$722

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 May 7, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$415
(eDestinos)

One-way from

$279
(Kiwi.com)

Popular in

June

Cheapest in

October

Average price

$537
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. 5% potential increase in price ($32 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($9 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in May 2026
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 May 7, 2026.
Use the filters below to find and compare flights from Costa Rica to Seattle that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

San JoséSeattle

SJO - SEA

SJOSEA

San José Juan Santamaria Intl

Thu 5/28

12:53 am-12:48 pm

2 stops36h 55m

Seattle/Tacoma Intl

Sun 5/31

8:45 am-11:33 pm

2 stops13h 48m

$613

San JoséSeattle

SJO - SEA

SJOSEA

San José Juan Santamaria Intl

Tue 5/19

12:53 am-10:44 pm

1 stop22h 51m

Seattle/Tacoma Intl

Mon 5/25

7:00 am-11:33 pm

1 stop15h 33m

$619

San JoséSeattle

SJO - SEA

SJOSEA

San José Juan Santamaria Intl

Thu 7/16

8:45 am-11:05 pm

2 stops15h 20m

Seattle/Tacoma Intl

Fri 7/31

6:30 am-7:40 pm

2 stops12h 10m

$707

LiberiaSeattle

LIR - SEA

LIRSEA

Liberia

Sun 6/14

11:49 am-8:00 am

1 stop21h 11m

Seattle/Tacoma Intl

Tue 6/16

5:00 pm-2:25 pm

1 stop20h 25m

$713

LiberiaSeattle

LIR - SEA

LIRSEA

Liberia

Tue 9/1

1:20 pm-9:58 am

2 stops21h 38m

Seattle/Tacoma Intl

Wed 10/28

5:07 am-5:37 pm

2 stops11h 30m

$713
Quickest round-trip

LiberiaSeattle

LIR - SEA

LIRSEA

Liberia

Thu 10/8

1:20 pm-10:40 pm

1 stop10h 20m

Seattle/Tacoma Intl

Mon 10/12

11:59 pm-12:10 pm

1 stop11h 11m

$722

LiberiaSeattle

LIR - SEA

LIRSEA

Liberia

Tue 7/28

3:27 pm-9:22 am

2 stops18h 55m

Seattle/Tacoma Intl

Tue 8/4

5:00 pm-12:10 pm

1 stop18h 10m

$726

San JoséSeattle

SJO - SEA

SJOSEA

San José Juan Santamaria Intl

Thu 6/4

12:53 am-6:56 pm

1 stop19h 03m

Seattle/Tacoma Intl

Mon 7/20

10:03 am-11:46 pm

1 stop12h 43m

$727

San JoséSeattle

SJO - SEA

SJOSEA

San José Juan Santamaria Intl

Sun 5/24

12:53 am-6:54 pm

2 stops19h 01m

Seattle/Tacoma Intl

Mon 6/1

7:05 am-11:33 pm

2 stops15h 28m

$731

San JoséSeattle

SJO - SEA

SJOSEA

San José Juan Santamaria Intl

Tue 6/30

1:06 am-3:33 pm

1 stop15h 27m

Seattle/Tacoma Intl

Mon 8/3

9:28 pm-11:46 pm

2 stops25h 18m

$732

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/4

Showing 1-10 of 33 resultsSorted by cheapest first
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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

How far ahead should I book a flight from Costa Rica to Seattle?

To ensure you get the cheapest price possible for a flight from Costa Rica to Seattle, you should look to book at least 37 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Costa Rica to Seattle?

Currently, March is the cheapest month in which you can book a flight from Costa Rica to Seattle (average of $216). Flying from Costa Rica to Seattle in June is currently the most expensive (average of $453). 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 May 7, 2026.
Read reviews from past customers who have flown Alaska Airlines,United Airlines, andAmerican 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
7.9
Good
12,336 reviews

Comfort

7.8

Crew

8.5

Food

7.1

Boarding

8.1

Entertainment

7.0

Overall

7.9

Reviews

1 / 20
8.0
Excellent

Eugene,Mar 2026

MFR - SEA

Alaska Airlines is is always good. There where few choices of what to drink, and no food. No blankets, no pillows, and you h ats ok. I just had open heart surgery And i could have used something. But the flight and the crew where exelent. So all is well
Alaska Airlines
7.9
Good
12,336 reviews
Alaska Airlines
7.9
Good
12,336 reviews

Comfort

7.8

Crew

8.5

Food

7.1

Boarding

8.1

Entertainment

7.0

Overall

7.9

Reviews

1 / 20
8.0
Excellent

Eugene,Mar 2026

MFR - SEA

Alaska Airlines is is always good. There where few choices of what to drink, and no food. No blankets, no pillows, and you h ats ok. I just had open heart surgery And i could have used something. But the flight and the crew where exelent. So all is well
United Airlines
7.4
Good
9,690 reviews
Alaska Airlines
7.9
Good
12,336 reviews

Comfort

7.8

Crew

8.5

Food

7.1

Boarding

8.1

Entertainment

7.0

Overall

7.9

Reviews

1 / 20
8.0
Excellent

Eugene,Mar 2026

MFR - SEA

Alaska Airlines is is always good. There where few choices of what to drink, and no food. No blankets, no pillows, and you h ats ok. I just had open heart surgery And i could have used something. But the flight and the crew where exelent. So all is well
American Airlines
7.1
Good
11,669 reviews
Alaska Airlines
7.9
Good
12,336 reviews

Comfort

7.8

Crew

8.5

Food

7.1

Boarding

8.1

Entertainment

7.0

Overall

7.9

Reviews

1 / 20
8.0
Excellent

Eugene,Mar 2026

MFR - SEA

Alaska Airlines is is always good. There where few choices of what to drink, and no food. No blankets, no pillows, and you h ats ok. I just had open heart surgery And i could have used something. But the flight and the crew where exelent. So all is well

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 15h 20m. Fly via Alaska Airlines, Southwest, or United 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?

    $182 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 Alaska Airlines and Southwest, with prices starting from $212 and $220, 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, March is the cheapest month in which you can book a flight from Costa Rica to Seattle (average of $216). Flying from Costa Rica to Seattle in June is currently the most expensive (average of $453). 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
Tacoma
Ocean Shores
Olympia
Lynnwood
Lacey
Edmonds
Leavenworth
Snoqualmie
Tumwater
Tukwila
Puyallup
Kent
Renton
Kirkland
Ellensburg
Fife
Lakewood
Issaquah
Shoreline

Browse thousands of different options on Cheapflights for your next trip

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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 May 7, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$376Average$624FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$416Average$523FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$460Average$602FlexibilityNo cancel feeOn-time75%

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