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$122+ 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 2/16. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — SJO
janv. 17 — janv. 241
sam. 1/17
sam. 1/24
1 adult, Economy
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Cheap 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 décembre 18, 2025.

This United Airlines deal was found by Cheapflights users on 12/17. 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.
jeu. 12/185:00 amEUG - SJO
1 stop15h 00mUnited Airlines
jeu. 12/259:40 amSJO - EUG
1 stop16h 50mUnited Airlines
Deal found 12/17$424
This United Airlines deal was found by Cheapflights users on 12/17. 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.
jeu. 12/187:00 amPDX - SJO
1 stop9h 16mUnited Airlines
sam. 12/207:30 amSJO - PDX
1 stop15h 37mUnited Airlines
Deal found 12/17$438
This United Airlines deal was found by Cheapflights users on 12/17. 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.
ven. 12/266:37 pmEUG - SJO
1 stop11h 55mUnited Airlines
ven. 1/166:30 amSJO - EUG
2 stops18h 39mUnited Airlines
Deal found 12/17$501
This Southwest deal was found by Cheapflights users on 12/15. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 12/162:15 pmPDX - SJO
2 stops21h 00mSouthwest
jeu. 12/182:10 pmSJO - PDX
2 stops12h 10mSouthwest
Deal found 12/15$520
This American Airlines deal was found by Cheapflights users on 12/15. 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.
mar. 12/165:59 pmPDX - SJO
2 stops15h 53mAmerican Airlines
jeu. 12/181:50 pmSJO - PDX
1 stop13h 09mAmerican Airlines
Deal found 12/15$543
This Delta deal was found by Cheapflights users on 12/15. 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.
mer. 12/315:15 pmPDX - LIR
2 stops18h 15mDelta
mer. 1/73:05 pmLIR - PDX
2 stops24h 30mDelta
Deal found 12/15$596
This United Airlines deal was found by Cheapflights users on 12/15. 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.
mer. 12/312:35 pmPDX - SJO
1 stop25h 41mUnited Airlines
ven. 1/96:30 amSJO - PDX
1 stop18h 23mUnited Airlines
Deal found 12/15$608
This United Airlines deal was found by Cheapflights users on 12/17. 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.
jeu. 12/182:45 pmPDX - SJO
2 stops20h 30mUnited Airlines
mar. 12/2312:35 pmSJO - PDX
1 stop26h 45mUnited Airlines
Deal found 12/17$623
This American Airlines deal was found by Cheapflights users on 12/15. 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.
mer. 12/3110:49 pmPDX - SJO
1 stop13h 27mAmerican Airlines
sam. 1/107:30 amSJO - PDX
1 stop18h 16mAmerican Airlines
Deal found 12/15$624
This Expedia deal was found by Cheapflights users on 12/15. 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.
mer. 12/317:00 amPDX - SJO
2 stops14h 40mMultiple Airlines
sam. 1/107:45 amSJO - PDX
1 stop14h 42mMultiple Airlines
Deal found 12/15$647
This United Airlines deal was found by Cheapflights users on 12/18. 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.
ven. 12/192:35 pmPDX - LIR
1 stop18h 34mUnited Airlines
lun. 12/222:20 pmLIR - PDX
1 stop10h 39mUnited Airlines
Deal found 12/18$651
This United Airlines deal was found by Cheapflights users on 12/16. 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.
mer. 12/245:00 amPDX - SJO
2 stops15h 32mUnited Airlines
ven. 1/166:30 amSJO - PDX
2 stops18h 36mUnited Airlines
Deal found 12/16$653

Find 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 décembre 18, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$276
(American Airlines)

One-way from

$122
(American Airlines)

Popular in

December

Cheapest in

September

Average price

$790
Provider with most accurate pricing for Portland-San José Juan Santamaria Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Portland-San José Juan Santamaria Intl flights.
Search Deals
From Oregon to Costa Rica
Search Deals
One-way flight from Oregon to Costa Rica
Search Deals
Highest demand for flights based on searches. 0% potential increase in price ($0 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($21 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

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 décembre 18, 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

MedfordSan José

MFR - SJO

MFRSJO

Medford

mar. 1/20

2:00 pm-8:32 am

1 stop16h 32m

San José Juan Santamaria Intl

mer. 1/28

9:40 am-5:42 pm

1 stop10h 02m

$298

PortlandLiberia

PDX - LIR

PDXLIR

Portland

mar. 1/20

11:01 pm-2:13 pm

1 stop13h 12m

Liberia

jeu. 1/29

1:21 pm-11:46 pm

1 stop12h 25m

$345

PortlandLiberia

PDX - LIR

PDXLIR

Portland

dim. 3/1

11:59 pm-12:10 pm

1 stop10h 11m

Liberia

mer. 3/4

1:20 pm-11:59 pm

1 stop12h 39m

$345

PortlandLiberia

PDX - LIR

PDXLIR

Portland

dim. 2/1

11:59 pm-2:20 pm

1 stop12h 21m

Liberia

mer. 2/11

1:21 pm-11:46 pm

1 stop12h 25m

$345

BoiseSan José

BOI - SJO

BOISJO

Boise Air Term. Gowen Fld

mar. 3/3

1:36 pm-2:53 pm

1 stop24h 17m

San José Juan Santamaria Intl

mer. 3/11

11:35 pm-10:36 pm

1 stop23h 01m

$348

PortlandLiberia

PDX - LIR

PDXLIR

Portland

dim. 2/1

5:25 pm-1:50 pm

2 stops18h 25m

Liberia

mer. 2/11

2:05 pm-12:02 pm

2 stops23h 57m

$349

PortlandLiberia

PDX - LIR

PDXLIR

Portland

lun. 1/5

7:45 pm-1:10 pm

2 stops15h 25m

Liberia

mar. 1/13

8:35 am-9:12 pm

2 stops14h 37m

$349

PortlandLiberia

PDX - LIR

PDXLIR

Portland

dim. 3/1

5:10 pm-1:50 pm

2 stops18h 40m

Liberia

mer. 3/4

2:05 pm-9:25 am

2 stops21h 20m

$349

PortlandLiberia

PDX - LIR

PDXLIR

Portland

lun. 1/19

12:40 am-1:30 pm

1 stop10h 50m

Liberia

jeu. 1/29

3:05 pm-4:25 pm

2 stops27h 20m

$349

PortlandLiberia

PDX - LIR

PDXLIR

Portland

mar. 2/17

10:40 pm-2:18 pm

2 stops13h 38m

Liberia

mer. 2/25

1:27 pm-10:49 am

2 stops23h 22m

$349

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/16

Showing 1-10 of 60 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, November is the cheapest month in which you can book a flight from Oregon to Costa Rica (average of $219). Flying from Oregon to Costa Rica in June is currently the most expensive (average of $398). 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 décembre 18, 2025.

It’s optimal to fly from Oregon to Costa Rica at noon. By choosing this option you can save up to 30% on the cost of your flight, compared to a flight in the morning.

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

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

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

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.

  • How long is the flight from Oregon to Costa Rica?

    Departing from Oregon to Costa Rica will take you 13h 12m. There are 3254 mi between Oregon and Costa Rica. Both multi-stop and nonstop flights can be found to your destination and back.

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

    $121 is the cheapest one-way deal found within the past few days, from United Airlines. You may also be able to find cheap deals on American Airlines and Alaska Airlines, with prices starting from $121 and $148, 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, November is the cheapest month in which you can book a flight from Oregon to Costa Rica (average of $219). Flying from Oregon to Costa Rica in June is currently the most expensive (average of $398). 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 décembre 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$204Average$359FlexibilityNo cancel feeOn-time65%
United AirlinesCheapest$275Average$602FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$277Average$738FlexibilityNo cancel feeOn-time71%
Alaska AirlinesCheapest$301Average$603FlexibilityNo cancel feeOn-time75%
DeltaCheapest$350Average$630FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$541Average$715FlexibilityNo cancel feeOn-time63%
Copa AirlinesCheapest$775Average$1,337FlexibilityNo cancel feeOn-time70%

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