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 $180. Users have also found prices from $188 and $224 on Alaska Airlines and United 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 35% by booking at least 52 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 $656.

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 $680 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.

$461+ Flights from Seattle to Costa Rica

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Cheap flight deals from Seattle to Costa Rica

Most accurate provider	AranGrant 3 stars
Most trusted provider	AranGrant 3 stars
Round-trip from	$454 (American Airlines)
One-way from	$180 (Priceline)
Popular in	December
Cheapest in	May
Average price	$575
Good one-way deal	$249 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. 6% potential increase in price ($48 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease ($23 potential savings vs. average RT price).

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Average for round-trip flights in May 2025

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Price to beat on a one-way 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 May 1, 2025.

Mon 6/210:10 pmSEA - SJO

1 stop13h 40mAmerican Airlines

Mon 6/1611:59 pmSJO - SEA

1 stop20h 11mAmerican Airlines

Deal found 4/29

$454

Sat 5/103:20 pmSEA - SJO

2 stops18h 07mSpirit Airlines

Fri 5/1612:28 pmSJO - SEA

2 stops36h 42mSpirit Airlines

Deal found 4/30

$456

Mon 6/28:25 amSEA - SJO

1 stop26h 08mMultiple Airlines

Sun 6/81:06 amSJO - SEA

1 stop21h 30mMultiple Airlines

Deal found 4/30

$462

Tue 6/36:00 amSEA - SJO

1 stop16h 46mAlaska Airlines

Mon 6/91:06 amSJO - SEA

1 stop18h 21mAlaska Airlines

Deal found 4/30

$463

Wed 5/147:14 amSEA - SJO

1 stop11h 23mUnited Airlines

Sun 5/256:00 amSJO - SEA

2 stops13h 25mUnited Airlines

Deal found 4/30

$468

Tue 5/2710:59 pmSEA - LIR

2 stops13h 27mAmerican Airlines

Tue 6/312:45 pmLIR - SEA

1 stop11h 22mAmerican Airlines

Deal found 4/30

$507

Sat 8/91:55 pmSEA - LIR

1 stop15h 25mAlaska Airlines

Sat 8/164:58 pmLIR - SEA

2 stops23h 26mAlaska Airlines

Deal found 4/30

$515

Fri 8/111:58 pmSEA - LIR

1 stop9h 02mUnited Airlines

Sat 8/93:25 pmLIR - SEA

1 stop19h 57mUnited Airlines

Deal found 4/29

$525

Tue 7/225:20 amSEA - SJO

2 stops13h 20mSouthwest

Sun 8/312:00 pmSJO - SEA

1 stop13h 45mSouthwest

Deal found 4/29

$538

Mon 5/1912:55 pmSEA - SJO

2 stops17h 45mAvianca

Sun 5/256:10 amSJO - SEA

2 stops16h 48mAvianca

Deal found 4/30

$546

Fri 6/133:45 pmSEA - LIR

2 stops20h 20mSouthwest

Sat 6/212:05 pmLIR - SEA

2 stops20h 25mSouthwest

Deal found 4/30

$600

Thu 5/15:13 pmSEA - SJO

2 stops13h 22mCopa Airlines

Tue 5/68:46 amSJO - SEA

2 stops17h 13mCopa Airlines

Deal found 4/30

$637

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 May 1, 2025.

Mon 6/210:10 pmSEA - SJO

1 stop13h 40mAmerican Airlines

Mon 6/1611:59 pmSJO - SEA

1 stop20h 11mAmerican Airlines

Deal found 4/29

$454

Sat 5/103:20 pmSEA - SJO

2 stops18h 07mSpirit Airlines

Fri 5/1612:28 pmSJO - SEA

2 stops36h 42mSpirit Airlines

Deal found 4/30

$456

Mon 6/28:25 amSEA - SJO

1 stop26h 08mMultiple Airlines

Sun 6/81:06 amSJO - SEA

1 stop21h 30mMultiple Airlines

Deal found 4/30

$462

Tue 6/36:00 amSEA - SJO

1 stop16h 46mAlaska Airlines

Mon 6/91:06 amSJO - SEA

1 stop18h 21mAlaska Airlines

Deal found 4/30

$463

Wed 5/147:14 amSEA - SJO

1 stop11h 23mUnited Airlines

Sun 5/256:00 amSJO - SEA

2 stops13h 25mUnited Airlines

Deal found 4/30

$468

Tue 7/225:20 amSEA - SJO

2 stops13h 20mSouthwest

Sun 8/38:45 amSJO - SEA

2 stops17h 00mSouthwest

Deal found 4/29

$538

Mon 5/1912:55 pmSEA - SJO

2 stops17h 45mAvianca

Sun 5/256:10 amSJO - SEA

2 stops16h 48mAvianca

Deal found 4/30

$546

Thu 8/281:15 pmSEA - LIR

2 stops15h 51mWestJet

Fri 9/57:05 amLIR - SEA

2 stops32h 04mWestJet

Deal found 4/30

$681

Thu 5/227:15 pmSEA - LIR

2 stops39h 45mAir Canada

Sat 5/311:00 pmLIR - SEA

1 stop22h 51mAir Canada

Deal found 5/1

$682

Wed 5/289:30 pmSEA - LIR

1 stop13h 30mDelta

Fri 6/61:25 pmLIR - SEA

1 stop11h 24mDelta

Deal found 5/1

$897

Tue 5/275:43 pmSEA - LIR

1 stop11h 37mAlaska Airlines

Wed 6/411:20 amLIR - SEA

1 stop11h 16mAlaska Airlines

Deal found 5/1

$498

Wed 5/2812:24 amSEA - LIR

1 stop12h 02mAmerican Airlines

Thu 6/53:40 pmLIR - SEA

1 stop10h 04mAmerican Airlines

Deal found 4/29

$509

Last-minute flights from Seattle to Costa Rica
Discover last-minute flight deals from Seattle to Costa Rica. Data last updated May 1, 2025 and is based on user searches.

Thu 5/15:13 pmSEA - SJO

2 stops13h 22mCopa Airlines

Tue 5/68:46 amSJO - SEA

2 stops17h 13mCopa Airlines

Deal found 4/30

$637

Tue 5/612:24 amSEA - SJO

1 stop17h 11mAmerican Airlines

Tue 5/136:03 amSJO - SEA

1 stop18h 04mAmerican Airlines

Deal found 4/30

$477

Wed 5/75:30 amSEA - SJO

2 stops17h 22mAlaska Airlines

Mon 5/121:12 amSJO - SEA

2 stops18h 05mAlaska Airlines

Deal found 4/30

$481

Wed 5/712:55 pmSEA - SJO

2 stops22h 31mUnited Airlines

Mon 5/127:55 amSJO - SEA

1 stop15h 55mUnited Airlines

Deal found 4/30

$571

Fri 5/96:15 amSEA - SJO

3 stops16h 20mAvianca

Mon 5/124:20 pmSJO - SEA

2 stops20h 18mAvianca

Deal found 4/29

$738

Sat 5/103:20 pmSEA - SJO

2 stops18h 07mSpirit Airlines

Fri 5/1612:28 pmSJO - SEA

2 stops36h 42mSpirit Airlines

Deal found 4/30

$456

Sat 5/106:00 amSEA - SJO

3 stops27h 14mMultiple Airlines

Fri 5/162:37 pmSJO - SEA

3 stops34h 33mMultiple Airlines

Deal found 4/30

$517

Sat 5/1011:58 pmSEA - SJO

1 stop21h 19mAmerican Airlines

Fri 5/166:03 amSJO - SEA

1 stop18h 04mAmerican Airlines

Deal found 4/30

$488

Sun 5/116:00 amSEA - SJO

1 stop16h 52mAlaska Airlines

Thu 5/151:06 amSJO - SEA

1 stop18h 21mAlaska Airlines

Deal found 4/29

$477

Wed 5/147:14 amSEA - SJO

1 stop11h 23mUnited Airlines

Sun 5/256:00 amSJO - SEA

2 stops13h 25mUnited Airlines

Deal found 4/30

$468

Sat 5/177:27 pmSEA - LIR

2 stops17h 56mUnited Airlines

Sat 5/248:45 amLIR - SEA

1 stop10h 47mUnited Airlines

Deal found 4/29

$533

Sat 5/178:25 amSEA - LIR

2 stops26h 59mWestJet

Sat 5/241:25 pmLIR - SEA

3 stops24h 33mWestJet

Deal found 4/29

$1,140

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 May 1, 2025.

Thu 5/296:00 amSEA - SJO

2 stops28h 33mSpirit Airlines

Deal found 4/29

$180

Thu 5/296:00 amSEA - SJO

1 stop16h 46mAlaska Airlines

Deal found 4/29

$188

Tue 5/204:20 pmSEA - SJO

2 stops29h 55mMultiple Airlines

Deal found 4/30

$206

Tue 8/55:15 pmSEA - SJO

1 stop18h 11mUnited Airlines

Deal found 4/30

$224

Fri 8/19:30 pmSEA - SJO

1 stop14h 35mDelta

Deal found 4/30

$228

Sun 6/1511:55 pmSEA - LIR

1 stop10h 29mAmerican Airlines

Deal found 4/30

$237

Sat 8/21:55 pmSEA - LIR

1 stop15h 25mAlaska Airlines

Deal found 4/30

$240

Thu 7/3111:30 pmSEA - LIR

1 stop11h 30mDelta

Deal found 4/30

$251

Wed 10/154:55 pmSEA - SJO

2 stops18h 05mSouthwest

Deal found 4/30

$253

Sun 6/225:32 amSEA - SJO

1 stop15h 32mAmerican Airlines

Deal found 4/30

$254

Fri 6/133:45 pmSEA - LIR

2 stops20h 20mSouthwest

Deal found 4/30

$267

Wed 10/155:14 pmSEA - SJO

2 stops24h 45mCopa Airlines

Deal found 4/30

$274

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

Mon 6/2

10:10 pm-12:50 pm

1 stop13h 40m

San José Juan Santamaria Intl

Mon 6/16

11:59 pm-7:10 pm

1 stop20h 11m

$454

SeattleSan José

SEA - SJO

SEASJO

Seattle/Tacoma Intl

Sat 5/10

3:20 pm-10:27 am

2 stops18h 07m

San José Juan Santamaria Intl

Fri 5/16

12:28 pm-12:10 am

2 stops36h 42m

$456

SeattleSan José

SEA - SJO

SEASJO

Seattle/Tacoma Intl

Mon 6/2

8:25 am-11:33 am

1 stop26h 08m

San José Juan Santamaria Intl

Sun 6/8

1:06 am-9:36 pm

1 stop21h 30m

$462

SeattleSan José

SEA - SJO

SEASJO

Seattle/Tacoma Intl

Tue 6/3

6:00 am-11:46 pm

1 stop16h 46m

San José Juan Santamaria Intl

Mon 6/9

1:06 am-6:27 pm

1 stop18h 21m

$463

SeattleSan José

SEA - SJO

SEASJO

Seattle/Tacoma Intl

Wed 5/14

7:14 am-7:37 pm

1 stop11h 23m

San José Juan Santamaria Intl

Sun 5/25

6:00 am-6:25 pm

2 stops13h 25m

$468

SeattleLiberia

SEA - LIR

SEALIR

Seattle/Tacoma Intl

Tue 5/27

10:59 pm-1:26 pm

2 stops13h 27m

Liberia

Tue 6/3

12:45 pm-11:07 pm

1 stop11h 22m

$507

SeattleLiberia

SEA - LIR

SEALIR

Seattle/Tacoma Intl

Sat 8/9

1:55 pm-6:20 am

1 stop15h 25m

Liberia

Sat 8/16

4:58 pm-3:24 pm

2 stops23h 26m

$515

SeattleLiberia

SEA - LIR

SEALIR

Seattle/Tacoma Intl

Fri 8/1

11:58 pm-10:00 am

1 stop9h 02m

Liberia

Sat 8/9

3:25 pm-10:22 am

1 stop19h 57m

$525

SeattleSan José

SEA - SJO

SEASJO

Seattle/Tacoma Intl

Tue 7/22

5:20 am-7:40 pm

2 stops13h 20m

San José Juan Santamaria Intl

Sun 8/3

8:45 am-12:45 am

2 stops17h 00m

$538

SeattleSan José

SEA - SJO

SEASJO

Seattle/Tacoma Intl

Mon 5/19

12:55 pm-7:40 am

2 stops17h 45m

San José Juan Santamaria Intl

Sun 5/25

6:10 am-9:58 pm

2 stops16h 48m

$546

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/29

Showing 1-10 of 33 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

9,972 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

9,972 reviews

Alaska Airlines

8.0

Very good

9,972 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

4,294 reviews

Alaska Airlines

8.0

Very good

9,972 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

7,934 reviews

Alaska Airlines

8.0

Very good

9,972 reviews

Reviews

1 / 20

8.0

Excellent

Anonymous,Aug 2024

SEA - LAS

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

Copa Airlines

7.5

Good

1,415 reviews

Alaska Airlines

8.0

Very good

9,972 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

8,696 reviews

Alaska Airlines

8.0

Very good

9,972 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 $180. Users have also found prices from $188 and $224 on Alaska Airlines and United 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$164	Average$192	FlexibilityNo cancel fee	On-time71%
Spirit Airlines	Cheapest$275	Average$390	FlexibilityNo cancel fee	On-time65%
Delta	Cheapest$394	Average$673	FlexibilityNo cancel fee	On-timeN/A
American Airlines	Cheapest$438	Average$641	FlexibilityNo cancel fee	On-time71%
Alaska Airlines	Cheapest$441	Average$685	FlexibilityNo cancel fee	On-time75%
United Airlines	Cheapest$491	Average$726	FlexibilityNo cancel fee	On-time69%
Southwest	Cheapest$521	Average$657	FlexibilityNo cancel fee	On-time63%
Copa Airlines	Cheapest$528	Average$805	FlexibilityNo cancel fee	On-time70%
Aeromexico	Cheapest$709	Average$953	FlexibilityNo cancel fee	On-timeN/A

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$180+ 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 5/29. 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 May 1, 2025.

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good one-way 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 May 1, 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 May 1, 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 May 1, 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 May 1, 2025.