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$140+ Cheap flights from Oregon 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 5/14. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — SJO
Apr 27 — May 41
Sun 4/27
Sun 5/4
1 adult, Economy
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Cheap flight deals from Oregon to Costa Rica

Keep the following information in mind while searching for Oregon to Costa Rica flight deals. Data was last updated April 22, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$350
(Alaska Airlines)

One-way from

$140
(American Airlines)

Popular in

December

Cheapest in

November

Average price

$682
Provider with most accurate pricing for Portland-San José Juan Santamaria Intl flight deals.
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Provider most trusted by Cheapflights users for Portland-San José Juan Santamaria Intl flights.
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From Oregon to Costa Rica
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One-way flight from Oregon to Costa Rica
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Highest demand for flights based on searches. 4% potential increase in price ($32 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($27 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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Find flight deals from Oregon to Costa Rica

Cheapest flights from Oregon to Costa Rica
Explore the most affordable flight options available from Oregon to Costa Rica. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 22, 2025.

This Alaska Airlines deal was found by Cheapflights users on 4/22. 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.
Wed 5/285:39 pmBOI - SJO
2 stops30h 07mAlaska Airlines
Tue 6/31:06 amSJO - BOI
2 stops21h 36mAlaska Airlines
Deal found 4/22$350
This United Airlines deal was found by Cheapflights users on 4/21. 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.
Sat 8/97:15 pmBOI - SJO
1 stop12h 00mUnited Airlines
Sat 8/165:30 amSJO - BOI
2 stops12h 37mUnited Airlines
Deal found 4/21$365
This American Airlines deal was found by Cheapflights users on 4/21. 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.
Sat 8/97:30 amBOI - SJO
1 stop10h 15mAmerican Airlines
Sat 8/167:40 amSJO - BOI
1 stop13h 36mAmerican Airlines
Deal found 4/21$376
This Alaska Airlines deal was found by Cheapflights users on 4/22. 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.
Sun 5/255:48 pmMFR - SJO
2 stops28h 58mAlaska Airlines
Sat 6/71:06 amSJO - MFR
2 stops22h 34mAlaska Airlines
Deal found 4/22$400
This American Airlines deal was found by Cheapflights users on 4/22. 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.
Thu 9/46:45 pmPDX - LIR
2 stops15h 30mAmerican Airlines
Sat 9/132:55 pmLIR - PDX
2 stops20h 35mAmerican Airlines
Deal found 4/22$405
This United Airlines deal was found by Cheapflights users on 4/22. 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.
Sun 5/252:12 pmMFR - SJO
1 stop16h 03mUnited Airlines
Sun 6/88:45 amSJO - MFR
1 stop14h 30mUnited Airlines
Deal found 4/22$406
This Alaska Airlines deal was found by Cheapflights users on 4/22. 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.
Fri 5/237:31 pmRDM - SJO
2 stops51h 15mAlaska Airlines
Fri 5/301:06 amSJO - RDM
2 stops15h 14mAlaska Airlines
Deal found 4/22$412
This Alaska Airlines deal was found by Cheapflights users on 4/22. 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.
Mon 8/1112:31 pmPDX - LIR
1 stop16h 49mAlaska Airlines
Tue 8/194:58 pmLIR - PDX
1 stop17h 27mAlaska Airlines
Deal found 4/22$415
This Alaska Airlines deal was found by Cheapflights users on 4/21. 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.
Fri 5/96:00 amPDX - SJO
1 stop16h 52mAlaska Airlines
Mon 5/121:12 amSJO - PDX
1 stop13h 13mAlaska Airlines
Deal found 4/21$443
This American Airlines deal was found by Cheapflights users on 4/20. 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.
Wed 5/711:39 amPDX - SJO
1 stop9h 38mAmerican Airlines
Thu 5/151:50 pmSJO - PDX
2 stops22h 00mAmerican Airlines
Deal found 4/20$447
This United Airlines deal was found by Cheapflights users on 4/21. 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 5/151:45 pmPDX - SJO
2 stops28h 52mUnited Airlines
Tue 5/207:55 amSJO - PDX
2 stops26h 51mUnited Airlines
Deal found 4/21$448
This American Airlines deal was found by Cheapflights users on 4/22. 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.
Thu 8/215:55 amEUG - SJO
1 stop10h 50mAmerican Airlines
Thu 9/47:35 amSJO - EUG
2 stops16h 19mAmerican Airlines
Deal found 4/22$448

Cheapflights Fare Finder

Customize your flight search to find flights from Oregon 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 April 22, 2025.
Use the filters below to find and compare flights from Oregon to Costa Rica that are best for you.

Fly from

Oregon

Fly to

Costa Rica

Route

Depart

Return

Price

BoiseSan José

BOI - SJO

BOISJO

Boise Air Term. Gowen Fld

Wed 5/28

5:39 pm-11:46 pm

2 stops30h 07m

San José Juan Santamaria Intl

Tue 6/3

1:06 am-10:42 pm

2 stops21h 36m

$350

BoiseSan José

BOI - SJO

BOISJO

Boise Air Term. Gowen Fld

Sat 8/9

7:15 pm-7:15 am

1 stop12h 00m

San José Juan Santamaria Intl

Sat 8/16

5:30 am-6:07 pm

2 stops12h 37m

$365

BoiseSan José

BOI - SJO

BOISJO

Boise Air Term. Gowen Fld

Sat 8/9

7:30 am-5:45 pm

1 stop10h 15m

San José Juan Santamaria Intl

Sat 8/16

7:40 am-9:16 pm

1 stop13h 36m

$376

MedfordSan José

MFR - SJO

MFRSJO

Medford

Sun 5/25

5:48 pm-11:46 pm

2 stops28h 58m

San José Juan Santamaria Intl

Sat 6/7

1:06 am-10:40 pm

2 stops22h 34m

$400

PortlandLiberia

PDX - LIR

PDXLIR

Portland

Thu 9/4

6:45 pm-11:15 am

2 stops15h 30m

Liberia

Sat 9/13

2:55 pm-10:30 am

2 stops20h 35m

$405

MedfordSan José

MFR - SJO

MFRSJO

Medford

Sun 5/25

2:12 pm-7:15 am

1 stop16h 03m

San José Juan Santamaria Intl

Sun 6/8

8:45 am-10:15 pm

1 stop14h 30m

$406

RedmondSan José

RDM - SJO

RDMSJO

Bend/Redmond

Fri 5/23

7:31 pm-11:46 pm

2 stops51h 15m

San José Juan Santamaria Intl

Fri 5/30

1:06 am-3:20 pm

2 stops15h 14m

$412

PortlandLiberia

PDX - LIR

PDXLIR

Portland

Mon 8/11

12:31 pm-6:20 am

1 stop16h 49m

Liberia

Tue 8/19

4:58 pm-9:25 am

1 stop17h 27m

$415

PortlandSan José

PDX - SJO

PDXSJO

Portland

Fri 5/9

6:00 am-11:52 pm

1 stop16h 52m

San José Juan Santamaria Intl

Mon 5/12

1:12 am-1:25 pm

1 stop13h 13m

$443

PortlandSan José

PDX - SJO

PDXSJO

Portland

Wed 5/7

11:39 am-10:17 pm

1 stop9h 38m

San José Juan Santamaria Intl

Wed 5/14

6:03 am-11:59 pm

2 stops18h 56m

$447

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/21

Showing 1-10 of 49 results
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Best time to book a flight from Oregon to Costa Rica

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

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

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

Find hourly flight availability from Oregon 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 22, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Oregon to Costa Rica as you normally would.

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 April 22, 2025.
Peruse reviews from past customers who have flown with Alaska Airlines, Southwest and Delta from Oregon to Costa Rica to help guide your decision. 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
9,911 reviews

Food

7.1

Boarding

8.2

Comfort

7.9

Crew

8.5

Entertainment

7.1

Overall

8.0

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Alaska Airlines
8.0
Very good
9,911 reviews
Alaska Airlines
8.0
Very good
9,911 reviews

Food

7.1

Boarding

8.2

Comfort

7.9

Crew

8.5

Entertainment

7.1

Overall

8.0

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Southwest
8.0
Very good
4,287 reviews
Alaska Airlines
8.0
Very good
9,911 reviews

Food

7.1

Boarding

8.2

Comfort

7.9

Crew

8.5

Entertainment

7.1

Overall

8.0

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
Delta
8.0
Very good
7,920 reviews
Alaska Airlines
8.0
Very good
9,911 reviews

Food

7.1

Boarding

8.2

Comfort

7.9

Crew

8.5

Entertainment

7.1

Overall

8.0

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
United Airlines
7.4
Good
8,683 reviews
Alaska Airlines
8.0
Very good
9,911 reviews

Food

7.1

Boarding

8.2

Comfort

7.9

Crew

8.5

Entertainment

7.1

Overall

8.0

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
9,911 reviews

Food

7.1

Boarding

8.2

Comfort

7.9

Crew

8.5

Entertainment

7.1

Overall

8.0

Reviews

1 / 20
4.0
Okay

Anonymous,Apr 2025

LAS - STS

flight was delayed both ways even tho the weather was clear >

Related info for your journey

Find useful and relevant information for your journey from Oregon 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 Oregon to Costa Rica one-way?

    $140 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 Spirit Airlines, with prices starting from $157 and $184, respectively.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Oregon 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 Oregon to Costa Rica?

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

See prices for flight routes from nearby airports that may be better suited for you.
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Top 7 airlines flying from Oregon to Costa Rica

Discover the top 7 airlines that operate flights from Oregon 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 April 22, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$271Average$359FlexibilityNo cancel feeOn-time65%
Alaska AirlinesCheapest$347Average$662FlexibilityNo cancel feeOn-time75%
DeltaCheapest$390Average$606FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$409Average$680FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$453Average$726FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$474Average$704FlexibilityNo cancel feeOn-time63%
Copa AirlinesCheapest$775Average$1,335FlexibilityNo cancel feeOn-time70%

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