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$271+ 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 7/9. Fares are subject to change and may not be available on all flights or dates of travel.
SJO — SEA
Jul 29 — Aug 51
Wed 7/29
Wed 8/5
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 June 29, 2026.

This Avianca deal was found by Cheapflights users on 6/25. 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.
Wed 11/185:45 am
SJO
-
SEA
2 stops14h 12m
Multiple Airlines
Tue 12/17:00 am
SEA
-
SJO
2 stops14h 15m
Multiple Airlines
Deal found 6/25$585
This Kissandfly.com deal was found by Cheapflights users on 6/28. 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 Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/248:45 am
SJO
-
SEA
1 stop15h 41m
Lufthansa
Tue 9/85:20 pm
SEA
-
SJO
2 stops18h 01m
Lufthansa
Deal found 6/28$590
This Kiwi.com deal was found by Cheapflights users on 6/24. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/82:20 am
SJO
-
SEA
2 stops40h 31m
Multiple Airlines
Sun 8/166:03 am
SEA
-
SJO
1 stop16h 43m
Multiple Airlines
Deal found 6/24$591
This United Airlines deal was found by Cheapflights users on 6/27. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/38:45 am
SJO
-
SEA
1 stop17h 44m
United Airlines
Tue 7/148:45 am
SEA
-
SJO
1 stop21h 30m
United Airlines
Deal found 6/27$593
This Avianca deal was found by Cheapflights users on 6/28. 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.
Wed 8/54:35 pm
SJO
-
SEA
2 stops18h 41m
Multiple Airlines
Sat 8/1510:03 am
SEA
-
SJO
2 stops12h 12m
Multiple Airlines
Deal found 6/28$595
This eDestinos deal was found by Cheapflights users on 6/24. 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 7/104:35 pm
SJO
-
SEA
1 stop28h 34m
Multiple Airlines
Mon 7/209:18 pm
SEA
-
SJO
1 stop24h 57m
Multiple Airlines
Deal found 6/24$596
This eDestinos deal was found by Cheapflights users on 6/25. 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 10/165:05 am
SJO
-
SEA
2 stops17h 54m
Multiple Airlines
Wed 10/211:59 pm
SEA
-
SJO
1 stop17h 31m
Multiple Airlines
Deal found 6/25$598
This eDestinos deal was found by Cheapflights users on 6/26. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/14:35 pm
SJO
-
SEA
1 stop28h 34m
Multiple Airlines
Mon 8/312:38 pm
SEA
-
SJO
1 stop33h 37m
Multiple Airlines
Deal found 6/26$599
This United Airlines deal was found by Cheapflights users on 6/25. 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 7/231:20 pm
LIR
-
SEA
2 stops19h 40m
United Airlines
Sun 8/27:54 pm
SEA
-
LIR
1 stop18h 25m
United Airlines
Deal found 6/25$599
This Orbitz deal was found by Cheapflights users on 6/28. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/305:05 am
SJO
-
SEA
2 stops15h 06m
Multiple Airlines
Sat 7/49:18 pm
SEA
-
SJO
3 stops20h 32m
Multiple Airlines
Deal found 6/28$604
This Expedia deal was found by Cheapflights users on 6/25. 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.
Wed 8/265:05 am
SJO
-
SEA
2 stops15h 34m
Multiple Airlines
Mon 9/76:10 pm
SEA
-
SJO
3 stops16h 35m
Multiple Airlines
Deal found 6/25$605
This Travelocity deal was found by Cheapflights users on 6/25. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/2512:40 pm
SJO
-
SEA
3 stops21h 07m
Multiple Airlines
Fri 9/115:59 pm
SEA
-
SJO
3 stops16h 46m
Multiple Airlines
Deal found 6/25$606

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 June 29, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$578
(FlightHub)

One-way from

$271
(American Airlines)

Popular in

June

Cheapest in

October

Average price

$697
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. 10% potential increase in price ($67 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($11 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 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 June 29, 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

LiberiaSeattle

LIR - SEA

LIRSEA

Liberia

Thu 9/24

1:20 pm-12:48 pm

1 stop24h 28m

Seattle/Tacoma Intl

Tue 9/29

5:05 pm-12:10 pm

1 stop18h 05m

$599

LiberiaSeattle

LIR - SEA

LIRSEA

Liberia

Fri 7/24

11:10 am-8:00 am

2 stops21h 50m

Seattle/Tacoma Intl

Mon 8/3

5:00 am-9:50 am

1 stop27h 50m

$599

LiberiaSeattle

LIR - SEA

LIRSEA

Liberia

Thu 7/23

1:20 pm-8:00 am

2 stops19h 40m

Seattle/Tacoma Intl

Sun 8/2

7:54 pm-3:19 pm

1 stop18h 25m

$599

San JoséSeattle

SJO - SEA

SJOSEA

San José Juan Santamaria Intl

Thu 7/2

7:55 am-2:30 pm

2 stops31h 35m

Seattle/Tacoma Intl

Mon 7/6

6:00 am-10:11 am

2 stops27h 11m

$621

LiberiaSeattle

LIR - SEA

LIRSEA

Liberia

Thu 8/27

1:20 pm-11:26 pm

2 stops35h 06m

Seattle/Tacoma Intl

Fri 9/4

7:35 pm-12:10 pm

2 stops39h 35m

$639
Quickest round-trip

LiberiaSeattle

LIR - SEA

LIRSEA

Liberia

Sat 10/10

11:49 am-9:15 pm

1 stop10h 26m

Seattle/Tacoma Intl

Mon 10/12

11:59 pm-12:10 pm

1 stop11h 11m

$648

San JoséSeattle

SJO - SEA

SJOSEA

San José Juan Santamaria Intl

Wed 9/9

7:55 am-9:36 pm

1 stop14h 41m

Seattle/Tacoma Intl

Sun 9/20

11:59 pm-12:21 pm

1 stop11h 22m

$649

San JoséSeattle

SJO - SEA

SJOSEA

San José Juan Santamaria Intl

Tue 9/1

7:55 am-7:08 pm

1 stop12h 13m

Seattle/Tacoma Intl

Tue 9/8

11:59 pm-7:37 pm

1 stop18h 38m

$658

San JoséSeattle

SJO - SEA

SJOSEA

San José Juan Santamaria Intl

Sun 8/9

12:30 am-9:18 pm

1 stop21h 48m

Seattle/Tacoma Intl

Mon 8/17

5:00 am-12:21 pm

2 stops30h 21m

$661

San JoséSeattle

SJO - SEA

SJOSEA

San José Juan Santamaria Intl

Sun 8/9

12:30 am-10:47 am

1 stop11h 17m

Seattle/Tacoma Intl

Tue 8/18

5:15 pm-12:21 pm

1 stop18h 06m

$661

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/26

Showing 1-10 of 26 resultsSorted by cheapest first
1
2
3

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, 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 August is currently the most expensive (average of $416). 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.

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 72 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.

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 June 29, 2026.
Read reviews from past customers who have flown Alaska Airlines,Southwest, andUnited 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
12,590 reviews

Comfort

7.8

Overall

7.9

Boarding

8.1

Entertainment

7.0

Crew

8.5

Food

7.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Jun 2026

LHR - SEA

It's my first time flying with Alaska Airlines. All in all it was very good. Excellent crew and the meal was really good .. best mashed potato!! Black point: not waking me up for breakfast. Having departed late from London and arriving in Seattle late at night, it would have been nice to have found a meal on the table when i woke up. Although the crew was very lovely, kind and helpful, I did find it a little regimented in their approach. Also the constant interruptions announcing what we were eating next and unnecessary announcements.
Alaska Airlines
7.9
Good
12,590 reviews
Alaska Airlines
7.9
Good
12,590 reviews

Comfort

7.8

Overall

7.9

Boarding

8.1

Entertainment

7.0

Crew

8.5

Food

7.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Jun 2026

LHR - SEA

It's my first time flying with Alaska Airlines. All in all it was very good. Excellent crew and the meal was really good .. best mashed potato!! Black point: not waking me up for breakfast. Having departed late from London and arriving in Seattle late at night, it would have been nice to have found a meal on the table when i woke up. Although the crew was very lovely, kind and helpful, I did find it a little regimented in their approach. Also the constant interruptions announcing what we were eating next and unnecessary announcements.
Southwest
7.9
Good
4,246 reviews
Alaska Airlines
7.9
Good
12,590 reviews

Comfort

7.8

Overall

7.9

Boarding

8.1

Entertainment

7.0

Crew

8.5

Food

7.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Jun 2026

LHR - SEA

It's my first time flying with Alaska Airlines. All in all it was very good. Excellent crew and the meal was really good .. best mashed potato!! Black point: not waking me up for breakfast. Having departed late from London and arriving in Seattle late at night, it would have been nice to have found a meal on the table when i woke up. Although the crew was very lovely, kind and helpful, I did find it a little regimented in their approach. Also the constant interruptions announcing what we were eating next and unnecessary announcements.
United Airlines
7.4
Good
9,894 reviews
Alaska Airlines
7.9
Good
12,590 reviews

Comfort

7.8

Overall

7.9

Boarding

8.1

Entertainment

7.0

Crew

8.5

Food

7.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Jun 2026

LHR - SEA

It's my first time flying with Alaska Airlines. All in all it was very good. Excellent crew and the meal was really good .. best mashed potato!! Black point: not waking me up for breakfast. Having departed late from London and arriving in Seattle late at night, it would have been nice to have found a meal on the table when i woke up. Although the crew was very lovely, kind and helpful, I did find it a little regimented in their approach. Also the constant interruptions announcing what we were eating next and unnecessary announcements.
American Airlines
7.1
Good
11,768 reviews
Alaska Airlines
7.9
Good
12,590 reviews

Comfort

7.8

Overall

7.9

Boarding

8.1

Entertainment

7.0

Crew

8.5

Food

7.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Jun 2026

LHR - SEA

It's my first time flying with Alaska Airlines. All in all it was very good. Excellent crew and the meal was really good .. best mashed potato!! Black point: not waking me up for breakfast. Having departed late from London and arriving in Seattle late at night, it would have been nice to have found a meal on the table when i woke up. Although the crew was very lovely, kind and helpful, I did find it a little regimented in their approach. Also the constant interruptions announcing what we were eating next and unnecessary announcements.

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 21h 50m. Fly via United Airlines to get the fastest option. The distance from Costa Rica to Seattle is about 3321 mi.

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

    $169 is the cheapest one-way deal found within the past few days, from Southwest. You may also be able to find cheap deals on American Airlines and Alaska Airlines, with prices starting from $182 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, 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 August is currently the most expensive (average of $416). 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
Lacey
Leavenworth
Olympia
Ocean Shores
Edmonds
Snoqualmie
Tumwater
Tukwila
Renton
Kent
Lynnwood
Ellensburg
Fife
Marysville
Lakewood
Issaquah
Shoreline
Centralia

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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 June 29, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$376Average$637FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$440Average$569FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$449Average$611FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$460Average$634FlexibilityNo cancel feeOn-time75%

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