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Costa Rica

$142+ Cheap flights from Washington 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 9/24. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — SJO
may. 6 — may. 131
mar. 5/6
mar. 5/13
1 adult, Economy
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Cheap flight deals from Washington to Costa Rica

Keep the following information in mind while searching for Washington to Costa Rica flight deals. Data was last updated mayo 1, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$363
(Alaska Airlines)

One-way from

$157
(Alaska Airlines)

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 Washington to Costa Rica
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One-way flight from Washington to Costa Rica
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Highest demand for flights based on searches. 6% potential increase in price ($48 potential increase over avg. RT price).
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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 Washington to Costa Rica.
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Find flight deals from Washington to Costa Rica

Cheapest flights from Washington to Costa Rica
Explore the most affordable flight options available from Washington to Costa Rica. Find the lowest fares from popular airlines and budget airlines, with prices last updated on mayo 1, 2025.

This Alaska Airlines deal was found by Cheapflights users on 4/29. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 8/87:52 pmPSC - SJO
2 stops26h 38mAlaska Airlines
jue. 8/1412:50 amSJO - PSC
2 stops34h 59mAlaska Airlines
Deal found 4/29$363
This United Airlines deal was found by Cheapflights users on 4/29. 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.
mar. 5/137:00 amPDX - SJO
1 stop11h 37mUnited Airlines
mar. 6/1711:13 amSJO - PDX
1 stop12h 09mUnited Airlines
Deal found 4/29$384
This American Airlines deal was found by Cheapflights users on 4/30. 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.
sáb. 9/206:07 amGEG - SJO
1 stop10h 23mAmerican Airlines
sáb. 9/277:35 amSJO - GEG
1 stop13h 58mAmerican Airlines
Deal found 4/30$389
This Alaska Airlines deal was found by Cheapflights users on 4/30. 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.
mar. 5/2710:30 amPDX - SJO
1 stop12h 16mAlaska Airlines
lun. 6/21:06 amSJO - PDX
1 stop16h 18mAlaska Airlines
Deal found 4/30$396
This Delta deal was found by Cheapflights users on 4/30. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 5/301:20 pmPDX - SJO
2 stops15h 40mDelta
sáb. 6/77:25 amSJO - PDX
2 stops15h 55mDelta
Deal found 4/30$397
This American Airlines deal was found by Cheapflights users on 4/30. 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.
lun. 8/1811:05 pmPDX - SJO
2 stops13h 10mAmerican Airlines
lun. 8/256:00 amSJO - PDX
2 stops16h 17mAmerican Airlines
Deal found 4/30$402
This Mytrip deal was found by Cheapflights users on 4/30. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 6/24:35 pmPDX - SJO
2 stops16h 52mMultiple Airlines
mié. 6/1112:28 pmSJO - PDX
2 stops30h 16mMultiple Airlines
Deal found 4/30$405
This United Airlines deal was found by Cheapflights users on 4/29. 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.
vie. 8/81:36 pmPSC - SJO
1 stop16h 39mUnited Airlines
vie. 8/158:45 amSJO - PSC
1 stop15h 08mUnited Airlines
Deal found 4/29$406
This United Airlines deal was found by Cheapflights users on 4/30. 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.
jue. 8/143:28 pmGEG - SJO
1 stop14h 47mUnited Airlines
jue. 8/218:37 amSJO - GEG
1 stop27h 01mUnited Airlines
Deal found 4/30$413
This American Airlines deal was found by Cheapflights users on 4/29. 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.
lun. 6/210:10 pmSEA - SJO
1 stop13h 40mAmerican Airlines
lun. 6/1611:59 pmSJO - SEA
1 stop20h 11mAmerican Airlines
Deal found 4/29$454
This Mytrip deal was found by Cheapflights users on 4/30. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 5/103:20 pmSEA - SJO
2 stops18h 07mSpirit Airlines
vie. 5/1612:28 pmSJO - SEA
2 stops36h 42mSpirit Airlines
Deal found 4/30$456
This Alaska Airlines deal was found by Cheapflights users on 4/30. 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.
dom. 5/117:00 amGEG - SJO
1 stop15h 52mAlaska Airlines
vie. 5/161:06 amSJO - GEG
2 stops33h 00mAlaska Airlines
Deal found 4/30$458

Cheapflights Fare Finder

Customize your flight search to find flights from Washington to Costa Rica 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 mayo 1, 2025.
Use the filters below to find and compare flights from Washington to Costa Rica that are best for you.

Fly from

Washington

Fly to

Costa Rica

Route

Depart

Return

Price

PascoSan José

PSC - SJO

PSCSJO

Pasco Tri Cities

vie. 8/8

7:52 pm-11:30 pm

2 stops26h 38m

San José Juan Santamaria Intl

jue. 8/14

12:50 am-10:49 am

2 stops34h 59m

$363

PortlandSan José

PDX - SJO

PDXSJO

Portland

mar. 5/13

7:00 am-7:37 pm

1 stop11h 37m

San José Juan Santamaria Intl

mar. 6/17

11:13 am-10:22 pm

1 stop12h 09m

$384

SpokaneSan José

GEG - SJO

GEGSJO

Spokane

sáb. 9/20

6:07 am-5:30 pm

1 stop10h 23m

San José Juan Santamaria Intl

sáb. 9/27

7:35 am-8:33 pm

1 stop13h 58m

$389

PortlandSan José

PDX - SJO

PDXSJO

Portland

mar. 5/27

10:30 am-11:46 pm

1 stop12h 16m

San José Juan Santamaria Intl

lun. 6/2

1:06 am-4:24 pm

1 stop16h 18m

$396

PortlandSan José

PDX - SJO

PDXSJO

Portland

vie. 5/30

1:20 pm-6:00 am

2 stops15h 40m

San José Juan Santamaria Intl

sáb. 6/7

7:25 am-10:20 pm

2 stops15h 55m

$397

PortlandSan José

PDX - SJO

PDXSJO

Portland

lun. 8/18

11:05 pm-1:15 pm

2 stops13h 10m

San José Juan Santamaria Intl

lun. 8/25

6:00 am-9:17 pm

2 stops16h 17m

$402

PortlandSan José

PDX - SJO

PDXSJO

Portland

lun. 6/2

4:35 pm-10:27 am

2 stops16h 52m

San José Juan Santamaria Intl

mié. 6/11

12:28 pm-5:44 pm

2 stops30h 16m

$405

PascoSan José

PSC - SJO

PSCSJO

Pasco Tri Cities

vie. 8/8

1:36 pm-7:15 am

1 stop16h 39m

San José Juan Santamaria Intl

vie. 8/15

8:45 am-10:53 pm

1 stop15h 08m

$406

SpokaneSan José

GEG - SJO

GEGSJO

Spokane

jue. 8/14

3:28 pm-7:15 am

1 stop14h 47m

San José Juan Santamaria Intl

jue. 8/21

8:37 am-10:38 am

1 stop27h 01m

$413

SeattleSan José

SEA - SJO

SEASJO

Seattle/Tacoma Intl

lun. 6/2

10:10 pm-12:50 pm

1 stop13h 40m

San José Juan Santamaria Intl

lun. 6/16

11:59 pm-7:10 pm

1 stop20h 11m

$454

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/30

Showing 1-10 of 59 results
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Best time to book a flight from Washington to Costa Rica

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

What is the cheapest month to book a flight from State of Washington to Costa Rica?

Currently, September is the cheapest month in which you can book a flight from State of Washington to Costa Rica (average of $398). Flying from State of Washington 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 WA to CR?

Find hourly flight availability from Washington 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 mayo 1, 2025.

When flying from State of Washington to Costa Rica, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Rainfall in Costa Rica by month

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

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

Get insights into the airlines that provide service to Costa Rica. 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 Costa Rica. Reviews last updated mayo 1, 2025.
Read reviews from past customers who have flown Alaska Airlines, Southwest and Delta from Washington to Costa Rica. 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
9,968 reviews

Entertainment

7.1

Food

7.1

Crew

8.5

Comfort

7.9

Overall

8.0

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
9,968 reviews
Alaska Airlines
8.0
Very good
9,968 reviews

Entertainment

7.1

Food

7.1

Crew

8.5

Comfort

7.9

Overall

8.0

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Southwest
8.0
Very good
4,294 reviews
Alaska Airlines
8.0
Very good
9,968 reviews

Entertainment

7.1

Food

7.1

Crew

8.5

Comfort

7.9

Overall

8.0

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,934 reviews
Alaska Airlines
8.0
Very good
9,968 reviews

Entertainment

7.1

Food

7.1

Crew

8.5

Comfort

7.9

Overall

8.0

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Copa Airlines
7.5
Good
1,415 reviews
Alaska Airlines
8.0
Very good
9,968 reviews

Entertainment

7.1

Food

7.1

Crew

8.5

Comfort

7.9

Overall

8.0

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,696 reviews
Alaska Airlines
8.0
Very good
9,968 reviews

Entertainment

7.1

Food

7.1

Crew

8.5

Comfort

7.9

Overall

8.0

Boarding

8.2

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

Related info for your journey

Find useful and relevant information for your journey from Washington 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 are the cheapest airlines to fly from State of Washington to Costa Rica one-way?

    To fly one-way, consider booking your trip with Alaska Airlines, which is currently one of the cheapest options available, starting at $157. American Airlines flights start at $169 while deals on Spirit Airlines start at $172 one-way.

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

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

  • How can I find direct flights from Washington to Costa Rica?

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

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

    Yes. Cheapflights offers flight deals from Washington 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 State of Washington to Costa Rica?

    Currently, September is the cheapest month in which you can book a flight from State of Washington to Costa Rica (average of $398). Flying from State of Washington 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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Alternative routes for Washington to Costa Rica

See prices for flight routes from nearby airports that may be better suited for you.
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Top 9 airlines flying from Washington to Costa Rica

Discover the top 9 airlines that operate flights from Washington to Costa Rica. 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 mayo 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
AviancaCheapest$164Average$192FlexibilityNo cancel feeOn-time71%
Spirit AirlinesCheapest$275Average$390FlexibilityNo cancel feeOn-time65%
American AirlinesCheapest$369Average$645FlexibilityNo cancel feeOn-time71%
DeltaCheapest$390Average$671FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$428Average$634FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$462Average$664FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$491Average$815FlexibilityNo cancel feeOn-time69%
Copa AirlinesCheapest$528Average$805FlexibilityNo cancel feeOn-time70%
AeromexicoCheapest$709Average$953FlexibilityNo cancel feeOn-timeN/A

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