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

For one-way options, check prices for Spirit Airlines. According to our data, you can fly for as low as $110. Users have also found prices from $193 and $200 on Delta and American Airlines, respectively.

What are the most popular airlines that fly from Seattle to Costa Rica?

When booking a flight from Seattle to Costa Rica, you may want to consider flying on American Airlines, Aeromexico or Alaska Airlines as they are the most popular for this route.

What is the cheapest day to fly round-trip from Seattle to Costa Rica?

Leaving on a Friday is a viable option for saving on travel. Heavily demanded days of the week can typically drive up the prices you see. Booking your travel for a less competitive day can save up to 242% on the overall cost on flights from Seattle to Costa Rica.

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

Find a great deal and save up to 38% by booking at least 37 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from Seattle to Costa Rica within the next two weeks, with the cheapest ticket starting at $683.

What is the cheapest month to fly from Seattle to Costa Rica?

Due to multiple factors, expect to potentially pay more when booking in December. For low rates, May can be a great choice for travel to Costa Rica. Flights to Costa Rica from Seattle in May are about $678 on average during May, but can be found for as low as $192.

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

For a flight from Seattle to Costa Rica, you will be flying from Seattle/Tacoma Intl. Seattle/Tacoma Intl (SEA) is just 11.4 mi from the center of the city.

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

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

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

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

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

Yes. Cheapflights offers flight deals from Seattle to Costa Rica by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$501+ Flights from Seattle to Costa Rica

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Cheap flight deals from Seattle to Costa Rica

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$382 (Mytrip)
One-way from	$110 (FlightHub)
Popular in	December
Cheapest in	May
Average price	$660
Good round-trip deal	$746 or less

Provider with most accurate pricing for Seattle/Tacoma Intl-San José Juan Santamaria Intl flight deals.

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Provider most trusted by Cheapflights users for Seattle/Tacoma Intl-San José Juan Santamaria Intl flights.

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From Seattle/Tacoma Intl to Costa Rica

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One-way flight from Seattle/Tacoma Intl to Costa Rica

Search Deals

Highest demand for flights based on searches. 7% potential increase in price ($56 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease ($24 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in April 2025

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Price to beat on a round-trip flight from Seattle/Tacoma Intl to Costa Rica.

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Find flight deals from Seattle to Costa Rica

Cheapest flights from Seattle to Costa Rica
Explore the most affordable flight options available from Seattle to Costa Rica. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 2, 2025.

Tue 4/2912:30 pmSEA - SJO

2 stops21h 48mSpirit Airlines

Mon 5/512:55 amSJO - SEA

3 stops38h 30mSpirit Airlines

Deal found 4/1

$382

Sat 4/264:17 pmSEA - SJO

2 stops14h 11mMultiple Airlines

Sun 5/112:48 pmSJO - SEA

2 stops29h 44mMultiple Airlines

Deal found 4/1

$395

Tue 4/225:22 amSEA - SJO

1 stop15h 42mAmerican Airlines

Tue 4/296:05 amSJO - SEA

1 stop18h 34mAmerican Airlines

Deal found 3/31

$419

Mon 5/125:30 amSEA - SJO

2 stops17h 22mAlaska Airlines

Mon 5/191:06 amSJO - SEA

2 stops14h 20mAlaska Airlines

Deal found 3/31

$423

Wed 5/711:59 pmSEA - SJO

1 stop18h 38mUnited Airlines

Thu 5/157:55 amSJO - SEA

2 stops18h 04mUnited Airlines

Deal found 4/1

$491

Sat 5/35:58 pmSEA - SJO

1 stop11h 12mDelta

Sat 5/177:25 amSJO - SEA

1 stop14h 24mDelta

Deal found 4/1

$493

Sat 8/97:55 pmSEA - LIR

1 stop9h 25mAlaska Airlines

Mon 8/184:58 pmLIR - SEA

1 stop17h 49mAlaska Airlines

Deal found 3/31

$554

Sat 10/45:50 pmSEA - LIR

1 stop18h 11mAmerican Airlines

Sun 10/1212:55 pmLIR - SEA

1 stop11h 19mAmerican Airlines

Deal found 4/1

$566

Wed 4/305:14 amSEA - LIR

1 stop9h 11mUnited Airlines

Thu 5/81:20 pmLIR - SEA

1 stop10h 30mUnited Airlines

Deal found 4/1

$593

Wed 8/139:20 pmSEA - LIR

1 stop13h 21mDelta

Thu 8/211:04 pmLIR - SEA

1 stop12h 04mDelta

Deal found 3/31

$600

Thu 4/106:00 amSEA - LIR

1 stop30h 30mAir Canada

Thu 4/172:30 pmLIR - SEA

1 stop32h 11mAir Canada

Deal found 4/1

$631

Sat 7/510:40 pmSEA - LIR

1 stop13h 05mSouthwest

Sat 7/1211:50 amLIR - SEA

2 stops12h 15mSouthwest

Deal found 4/1

$675

Best flights from Seattle to Costa Rica
Discover carefully curated flight deals from Seattle to Costa Rica that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 2, 2025.

Tue 4/2912:30 pmSEA - SJO

2 stops21h 48mSpirit Airlines

Mon 5/512:55 amSJO - SEA

3 stops38h 30mSpirit Airlines

Deal found 4/1

$382

Thu 9/411:59 pmSEA - SJO

1 stop12h 06mAmerican Airlines

Fri 9/121:55 pmSJO - SEA

1 stop21h 49mAmerican Airlines

Deal found 4/1

$391

Sat 4/264:17 pmSEA - SJO

2 stops14h 11mMultiple Airlines

Sun 5/112:48 pmSJO - SEA

2 stops29h 44mMultiple Airlines

Deal found 4/1

$395

Mon 5/126:00 amSEA - SJO

1 stop16h 52mAlaska Airlines

Tue 5/201:06 amSJO - SEA

1 stop12h 24mAlaska Airlines

Deal found 4/1

$419

Mon 4/2811:30 pmSEA - SJO

1 stop11h 25mDelta

Sat 5/177:25 amSJO - SEA

1 stop14h 24mDelta

Deal found 4/1

$477

Tue 4/1512:54 pmSEA - SJO

2 stops20h 17mUnited Airlines

Sun 9/78:37 amSJO - SEA

1 stop11h 12mUnited Airlines

Deal found 4/1

$486

Fri 7/1810:40 pmSEA - LIR

1 stop11h 10mSouthwest

Sat 7/261:45 pmLIR - SEA

1 stop11h 20mSouthwest

Deal found 4/1

$641

Tue 5/132:05 pmSEA - LIR

2 stops21h 19mWestJet

Sat 5/171:25 pmLIR - SEA

3 stops24h 06mWestJet

Deal found 4/1

$1,037

Wed 7/211:32 pmSEA - LIR

1 stop14h 08mAmerican Airlines

Tue 7/812:50 pmLIR - SEA

1 stop12h 17mAmerican Airlines

Deal found 4/1

$554

Sun 4/207:00 amSEA - LIR

1 stop8h 56mAlaska Airlines

Sat 5/104:52 pmLIR - SEA

2 stops19h 42mAlaska Airlines

Deal found 4/1

$562

Fri 7/1111:58 pmSEA - LIR

1 stop9h 02mUnited Airlines

Wed 7/1611:05 amLIR - SEA

1 stop11h 07mUnited Airlines

Deal found 3/31

$575

Sat 9/612:33 amSEA - LIR

1 stop11h 28mMultiple Airlines

Sat 9/1312:55 pmLIR - SEA

1 stop12h 38mMultiple Airlines

Deal found 4/1

$674

Last-minute flights from Seattle to Costa Rica
Discover last-minute flight deals from Seattle to Costa Rica. Data last updated April 2, 2025 and is based on user searches.

Tue 4/112:59 amSEA - LIR

1 stop11h 00mAmerican Airlines

Sat 4/121:40 pmLIR - SEA

1 stop21h 35mAmerican Airlines

Deal found 4/1

$563

Sun 4/67:59 pmSEA - SJO

1 stop27h 13mMultiple Airlines

Sat 4/1912:23 pmSJO - SEA

2 stops24h 12mMultiple Airlines

Deal found 4/1

$566

Sun 4/65:58 pmSEA - SJO

1 stop10h 48mDelta

Mon 4/147:25 amSJO - SEA

1 stop14h 20mDelta

Deal found 4/1

$653

Mon 4/712:59 amSEA - SJO

1 stop11h 20mAmerican Airlines

Tue 4/226:05 amSJO - SEA

1 stop18h 34mAmerican Airlines

Deal found 3/31

$507

Tue 4/812:45 pmSEA - SJO

2 stops29h 52mUnited Airlines

Tue 4/2211:13 amSJO - SEA

2 stops23h 34mUnited Airlines

Deal found 3/31

$558

Wed 4/97:33 pmSEA - LIR

2 stops18h 52mUnited Airlines

Wed 4/163:25 pmLIR - SEA

2 stops18h 01mUnited Airlines

Deal found 4/1

$627

Wed 4/910:10 pmSEA - LIR

1 stop14h 06mAmerican Airlines

Wed 4/162:05 pmLIR - SEA

1 stop20h 24mAmerican Airlines

Deal found 4/1

$647

Thu 4/106:00 amSEA - LIR

1 stop30h 30mAir Canada

Thu 4/172:30 pmLIR - SEA

1 stop32h 11mAir Canada

Deal found 4/1

$631

Thu 4/1012:46 pmSEA - SJO

2 stops17h 54mAvianca

Sat 4/191:40 amSJO - SEA

2 stops22h 03mAvianca

Deal found 4/1

$3,225

Fri 4/1112:30 pmSEA - SJO

2 stops20h 54mSpirit Airlines

Sat 4/1912:23 pmSJO - SEA

2 stops24h 12mSpirit Airlines

Deal found 4/1

$533

Fri 4/1110:59 pmSEA - SJO

2 stops48h 13mAlaska Airlines

Wed 4/161:22 amSJO - SEA

2 stops15h 40mAlaska Airlines

Deal found 4/1

$601

Fri 4/114:27 pmSEA - LIR

1 stop19h 33mMultiple Airlines

Sat 4/191:40 pmLIR - SEA

1 stop21h 36mMultiple Airlines

Deal found 4/1

$788

One-way flights from Seattle to Costa Rica
Search for one-way flight options from Seattle to Costa Rica. Find affordable one-way fares based on user searches. Data last updated April 2, 2025.

Tue 4/2912:30 pmSEA - SJO

2 stops21h 48mSpirit Airlines

Deal found 4/1

$110

Mon 4/2811:30 pmSEA - SJO

1 stop11h 25mDelta

Deal found 4/1

$193

Wed 6/115:32 amSEA - SJO

1 stop15h 32mAmerican Airlines

Deal found 4/1

$200

Sun 5/255:43 pmSEA - SJO

1 stop29h 03mAlaska Airlines

Deal found 3/30

$208

Thu 5/297:05 amSEA - LIR

1 stop22h 01mWestJet

Deal found 3/31

$227

Wed 5/2810:40 pmSEA - LIR

1 stop13h 25mJetBlue

Deal found 3/31

$234

Mon 4/2810:30 pmSEA - LIR

1 stop12h 07mDelta

Deal found 3/31

$236

Sat 5/2410:49 amSEA - SJO

2 stops23h 26mMultiple Airlines

Deal found 3/30

$240

Sun 4/2710:10 pmSEA - LIR

1 stop14h 06mAmerican Airlines

Deal found 3/31

$251

Mon 6/238:55 amSEA - LIR

2 stops20h 25mAlaska Airlines

Deal found 3/31

$277

Mon 6/307:34 pmSEA - SJO

2 stops13h 37mUnited Airlines

Deal found 3/31

$277

Fri 6/133:45 pmSEA - LIR

2 stops20h 20mSouthwest

Deal found 4/1

$312

Cheapflights Fare Finder

Use the filters below to find and compare flights from Seattle to Costa Rica that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

SeattleSan José

SEA - SJO

SEASJO

Seattle/Tacoma Intl

Tue 4/29

12:30 pm-11:18 am

2 stops21h 48m

San José Juan Santamaria Intl

Mon 5/5

12:55 am-2:25 pm

3 stops38h 30m

$382

SeattleSan José

SEA - SJO

SEASJO

Seattle/Tacoma Intl

Sat 4/26

4:17 pm-7:28 am

2 stops14h 11m

San José Juan Santamaria Intl

Sun 5/11

2:48 pm-7:32 pm

2 stops29h 44m

$395

SeattleSan José

SEA - SJO

SEASJO

Seattle/Tacoma Intl

Tue 4/22

5:22 am-10:04 pm

1 stop15h 42m

San José Juan Santamaria Intl

Tue 4/29

6:05 am-11:39 pm

1 stop18h 34m

$419

SeattleSan José

SEA - SJO

SEASJO

Seattle/Tacoma Intl

Mon 5/12

5:30 am-11:52 pm

2 stops17h 22m

San José Juan Santamaria Intl

Mon 5/19

1:06 am-2:26 pm

2 stops14h 20m

$423

SeattleSan José

SEA - SJO

SEASJO

Seattle/Tacoma Intl

Wed 5/7

11:59 pm-7:37 pm

1 stop18h 38m

San José Juan Santamaria Intl

Thu 5/15

7:55 am-12:59 am

2 stops18h 04m

$491

SeattleSan José

SEA - SJO

SEASJO

Seattle/Tacoma Intl

Sat 5/3

5:58 pm-6:10 am

1 stop11h 12m

San José Juan Santamaria Intl

Sat 5/17

7:25 am-8:49 pm

1 stop14h 24m

$493

SeattleLiberia

SEA - LIR

SEALIR

Seattle/Tacoma Intl

Thu 5/15

7:55 pm-6:20 am

1 stop9h 25m

Liberia

Thu 5/22

11:20 am-11:59 pm

1 stop13h 39m

$554

SeattleLiberia

SEA - LIR

SEALIR

Seattle/Tacoma Intl

Sat 4/5

10:05 pm-11:20 am

1 stop12h 15m

Liberia

Sat 4/12

1:40 pm-10:15 am

1 stop21h 35m

$563

SeattleSan José

SEA - SJO

SEASJO

Seattle/Tacoma Intl

Tue 4/22

3:24 pm-1:21 pm

2 stops20h 57m

San José Juan Santamaria Intl

Tue 4/29

4:10 am-12:58 am

2 stops21h 48m

$585

SeattleLiberia

SEA - LIR

SEALIR

Seattle/Tacoma Intl

Wed 4/30

5:14 am-3:25 pm

1 stop9h 11m

Liberia

Thu 5/8

1:20 pm-10:50 pm

1 stop10h 30m

$593

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/1

Showing 1-10 of 29 results

Best time to book a flight from Seattle to Costa Rica

Have a flexible travel schedule? Discover the best time to fly to Costa Rica from Seattle 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 Seattle to Costa Rica

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

Currently, September is the cheapest month in which you can book a flight from Seattle to Costa Rica (average of $398). Flying from Seattle to Costa Rica in March is currently the most expensive (average of $555). 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 SEA to CR?

Unlike at noon, when flights are generally more expensive, you can save up to 71% on flights from Seattle to Costa Rica by exploring options for tickets in the morning.

What is the cheapest day to fly from Seattle to Costa Rica?

Travelers seeking maximum savings on their Seattle to Costa Rica flight should consider departing on Saturday mornings when fares are most often at their lowest. Friday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

Rainfall in Costa Rica by month

In terms of precipitation, rainfall in Costa Rica ranges from 0.0 - 11.8 inches per month. September is typically the wettest month, when rainfall can reach 11.8 in. February is typically the driest time to visit Costa Rica when rainfall is around 0.0 in.

Temperature in Costa Rica by month

If weather is an important factor for your trip to Costa Rica, use this chart to help with planning. For those seeking warmer temperatures, April is the ideal time of year to visit, when temperatures reach an average of 69.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 64.4 F).

Reviews of airlines servicing Costa Rica

See what other customers who have flown with Alaska Airlines, Southwest and Delta from Seattle to Costa Rica have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Alaska Airlines

8.0

Very good

9,823 reviews

Reviews

1 / 20

8.0

Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥

Alaska Airlines

8.0

Very good

9,823 reviews

Alaska Airlines

8.0

Very good

9,823 reviews

Reviews

1 / 20

8.0

Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥

Southwest

8.0

Very good

4,275 reviews

Alaska Airlines

8.0

Very good

9,823 reviews

Reviews

1 / 20

8.0

Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥

Delta

8.0

Very good

7,899 reviews

Alaska Airlines

8.0

Very good

9,823 reviews

Reviews

1 / 20

8.0

Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥

SWISS

7.5

Good

1,572 reviews

Alaska Airlines

8.0

Very good

9,823 reviews

Reviews

1 / 20

8.0

Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥

United Airlines

7.4

Good

8,615 reviews

Alaska Airlines

8.0

Very good

9,823 reviews

Reviews

1 / 20

8.0

Excellent

Anonymous,Aug 2024

SEA - LAS

Seats were not that comfy especially for someone with big hips 😥

Related info for your journey

What airport do you fly from for flights from Seattle to Costa Rica?
For a flight from Seattle to Costa Rica, you will be flying from Seattle/Tacoma Intl. Seattle/Tacoma Intl (SEA) is just 11.4 mi from the center of the city.
What are the cheapest airlines to fly from Seattle to Costa Rica one-way?
For one-way options, check prices for Spirit Airlines. According to our data, you can fly for as low as $110. Users have also found prices from $193 and $200 on Delta and American Airlines, respectively.
Can I find deals for flights from Seattle to Costa Rica that include hotel bookings?
Yes. In addition to deals on Seattle to Costa Rica flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Seattle to Costa Rica?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seattle to Costa Rica.
Can I find deals for business class flights from Seattle to Costa Rica?
Yes. Cheapflights offers flight deals from Seattle to Costa Rica 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 Seattle to Costa Rica?
Currently, September is the cheapest month in which you can book a flight from Seattle to Costa Rica (average of $398). Flying from Seattle to Costa Rica in March is currently the most expensive (average of $555). 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

Browse thousands of different options on Cheapflights for your next trip

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Top 9 airlines flying from Seattle to Costa Rica

Airline	Cheapest	Average	Flexibility	On-time
Avianca	Cheapest$184	Average$192	FlexibilityNo cancel fee	On-time71%
Spirit Airlines	Cheapest$254	Average$390	FlexibilityNo cancel fee	On-time65%
Delta	Cheapest$394	Average$644	FlexibilityNo cancel fee	On-timeN/A
American Airlines	Cheapest$438	Average$645	FlexibilityNo cancel fee	On-time71%
Alaska Airlines	Cheapest$450	Average$694	FlexibilityNo cancel fee	On-time75%
United Airlines	Cheapest$490	Average$740	FlexibilityNo cancel fee	On-time69%
Southwest	Cheapest$521	Average$637	FlexibilityNo cancel fee	On-time63%
Copa Airlines	Cheapest$538	Average$805	FlexibilityNo cancel fee	On-time70%
Aeromexico	Cheapest$709	Average$912	FlexibilityNo cancel fee	On-timeN/A

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$110+ Cheap flights from Seattle (SEA) to Costa Rica

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 4/29. Fares are subject to change and may not be available on all flights or dates of travel.

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Cheap flight deals from Seattle to Costa Rica

Keep the following information in mind while searching for Seattle to Costa Rica flight deals. Data was last updated April 2, 2025.

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good round-trip deal

Find flight deals from Seattle to Costa Rica

Cheapest flights from Seattle to Costa RicaExplore the most affordable flight options available from Seattle to Costa Rica. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 2, 2025.

Explore the most affordable flight options available from Seattle to Costa Rica. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 2, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Seattle to Costa Rica that are best for you.

Best time to book a flight from Seattle to Costa Rica

Have a flexible travel schedule? Discover the best time to fly to Costa Rica from Seattle with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Seattle to Costa Rica

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

What is the cheapest time of day to fly from SEA to CR?

Find hourly flight availability from Seattle to Costa Rica. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 2, 2025.

What is the cheapest day to fly from Seattle to Costa Rica?

Use this chart to determine the cheapest time to fly round-trip from Seattle to Costa Rica. Price data was last updated on December 16, 2024.

Rainfall in Costa Rica by month

Plan your trip to Costa Rica by taking into account the average rainfall totals by month.

Temperature in Costa Rica by month

Plan your trip to Costa Rica by taking into account the average temperature totals by month.

Reviews of airlines servicing Costa Rica

See what other customers who have flown with Alaska Airlines, Southwest and Delta from Seattle to Costa Rica have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Seattle to Costa Rica. 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 from for flights from Seattle to Costa Rica?

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

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

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

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

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

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 Seattle to Costa Rica

See prices for flight routes from nearby airports that may be better suited for you.

Top 9 airlines flying from Seattle to Costa Rica

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Cheapest flights from Seattle to Costa Rica
Explore the most affordable flight options available from Seattle to Costa Rica. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 2, 2025.