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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 8/22. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — SJO
Aug 6 — Aug 131
Wed 8/6
Wed 8/13
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 August 1, 2025.

Round-trip from

$276
(United Airlines)

One-way from

$122
(American Airlines)

Popular in

December

Cheapest in

September

Average price

$558
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. 7% potential increase in price ($49 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($25 potential savings vs. average RT price).
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Average for round-trip flights in August 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 August 1, 2025.

This United Airlines deal was found by Cheapflights users on 7/31. 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.
Wed 10/17:35 pmPDX - SJO
1 stop10h 40mUnited Airlines
Fri 10/108:37 amSJO - PDX
1 stop15h 08mUnited Airlines
Deal found 7/31$276
This American Airlines deal was found by Cheapflights users on 7/30. 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.
Sat 11/111:58 pmPDX - SJO
1 stop21h 03mAmerican Airlines
Wed 11/126:00 amSJO - PDX
2 stops16h 18mAmerican Airlines
Deal found 7/30$287
This Alaska Airlines deal was found by Cheapflights users on 7/30. 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.
Sat 11/12:50 pmPDX - SJO
1 stop32h 48mAlaska Airlines
Tue 11/111:58 amSJO - PDX
1 stop20h 52mAlaska Airlines
Deal found 7/30$302
This American Airlines deal was found by Cheapflights users on 7/31. 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.
Fri 9/51:57 pmBOI - SJO
2 stops21h 15mAmerican Airlines
Tue 9/96:00 amSJO - BOI
2 stops15h 48mAmerican Airlines
Deal found 7/31$302
This Alaska Airlines deal was found by Cheapflights users on 7/31. 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 9/172:50 pmPDX - LIR
1 stop14h 30mAlaska Airlines
Thu 9/2511:20 amLIR - PDX
1 stop13h 19mAlaska Airlines
Deal found 7/31$313
This Delta deal was found by Cheapflights users on 7/31. 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.
Sat 9/2712:35 pmRDM - SJO
2 stops22h 33mDelta
Wed 10/11:35 pmSJO - RDM
2 stops22h 05mDelta
Deal found 7/31$320
This Alaska Airlines deal was found by Cheapflights users on 7/31. 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 10/810:15 amBOI - SJO
2 stops56h 49mAlaska Airlines
Tue 10/281:11 amSJO - BOI
2 stops21h 09mAlaska Airlines
Deal found 7/31$323
This Mytrip deal was found by Cheapflights users on 8/1. 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.
Tue 9/912:07 pmPDX - SJO
2 stops22h 07mSpirit Airlines
Tue 9/1612:19 pmSJO - PDX
3 stops32h 04mSpirit Airlines
Deal found 8/1$337
This United Airlines deal was found by Cheapflights users on 7/30. 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.
Wed 12/107:00 amPDX - LIR
1 stop9h 37mUnited Airlines
Tue 12/168:35 amLIR - PDX
2 stops16h 17mUnited Airlines
Deal found 7/30$345
This American Airlines deal was found by Cheapflights users on 7/30. 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.
Tue 11/115:42 pmPDX - LIR
2 stops18h 26mAmerican Airlines
Tue 11/183:08 pmLIR - PDX
2 stops21h 50mAmerican Airlines
Deal found 7/30$349
This American Airlines deal was found by Cheapflights users on 7/30. 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.
Wed 12/312:16 pmEUG - SJO
2 stops27h 46mAmerican Airlines
Wed 1/146:25 amSJO - EUG
2 stops32h 36mAmerican Airlines
Deal found 7/30$362
This Delta deal was found by Cheapflights users on 7/31. 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.
Sat 11/19:58 amPDX - LIR
2 stops25h 42mDelta
Wed 11/122:10 pmLIR - PDX
2 stops20h 28mDelta
Deal found 7/31$363

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 August 1, 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

PortlandSan José

PDX - SJO

PDXSJO

Portland

Wed 10/1

7:35 pm-7:15 am

1 stop10h 40m

San José Juan Santamaria Intl

Fri 10/10

8:37 am-10:45 pm

1 stop15h 08m

$276

PortlandSan José

PDX - SJO

PDXSJO

Portland

Sat 11/1

11:58 pm-10:01 pm

1 stop21h 03m

San José Juan Santamaria Intl

Wed 11/12

6:00 am-8:18 pm

2 stops16h 18m

$287

PortlandSan José

PDX - SJO

PDXSJO

Portland

Thu 1/22

7:30 am-11:00 pm

1 stop13h 30m

San José Juan Santamaria Intl

Wed 1/28

2:26 am-4:28 pm

1 stop16h 02m

$296

BoiseSan José

BOI - SJO

BOISJO

Boise Air Term. Gowen Fld

Fri 9/5

1:57 pm-11:12 am

2 stops21h 15m

San José Juan Santamaria Intl

Tue 9/9

6:00 am-9:48 pm

2 stops15h 48m

$302

BoiseSan José

BOI - SJO

BOISJO

Boise Air Term. Gowen Fld

Wed 1/21

7:30 am-11:00 pm

1 stop14h 30m

San José Juan Santamaria Intl

Wed 1/28

2:26 am-12:04 pm

1 stop10h 38m

$307

PortlandLiberia

PDX - LIR

PDXLIR

Portland

Wed 9/17

2:50 pm-6:20 am

1 stop14h 30m

Liberia

Thu 9/25

11:20 am-11:39 pm

1 stop13h 19m

$313

PortlandSan José

PDX - SJO

PDXSJO

Portland

Mon 1/19

6:04 am-10:15 pm

1 stop14h 11m

San José Juan Santamaria Intl

Thu 1/29

7:00 am-7:18 pm

1 stop14h 18m

$316

RedmondSan José

RDM - SJO

RDMSJO

Bend/Redmond

Sat 9/27

12:35 pm-12:08 pm

2 stops22h 33m

San José Juan Santamaria Intl

Wed 10/1

1:35 pm-10:40 am

2 stops22h 05m

$320

BoiseSan José

BOI - SJO

BOISJO

Boise Air Term. Gowen Fld

Thu 1/8

3:00 pm-12:55 pm

2 stops20h 55m

San José Juan Santamaria Intl

Sat 1/17

8:25 am-11:58 pm

2 stops16h 33m

$320

EugeneSan José

EUG - SJO

EUGSJO

Eugene

Wed 1/21

8:05 am-11:00 pm

1 stop12h 55m

San José Juan Santamaria Intl

Mon 1/26

2:26 am-4:50 pm

2 stops16h 24m

$332

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/30

Showing 1-10 of 54 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 August 1, 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.

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 August 1, 2025.
Read through reviews of airlines operating flights from Oregon to Costa Rica, such as Alaska Airlines, Southwest, and Delta. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Overall

8.0

Entertainment

7.1

Comfort

7.8

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Overall

8.0

Entertainment

7.1

Comfort

7.8

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Southwest
8.0
Very good
4,246 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Overall

8.0

Entertainment

7.1

Comfort

7.8

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Delta
8.0
Very good
7,981 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Overall

8.0

Entertainment

7.1

Comfort

7.8

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
Copa Airlines
7.5
Good
1,493 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Overall

8.0

Entertainment

7.1

Comfort

7.8

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.
United Airlines
7.4
Good
8,900 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Overall

8.0

Entertainment

7.1

Comfort

7.8

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

Jonathan,Jul 2025

SEA - BOS

Fantastic Check-in with easy baggage drop. While it took a while to find out which was the gate, the boarding was a dream, the stewards were simply incredible and the flight fantastic.

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?

    $122 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 United Airlines and Delta, with prices starting from $141 and $142, 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 August 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$204Average$359FlexibilityNo cancel feeOn-time65%
Alaska AirlinesCheapest$347Average$615FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$359Average$686FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$372Average$721FlexibilityNo cancel feeOn-time71%
DeltaCheapest$390Average$660FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$484Average$703FlexibilityNo cancel feeOn-time63%
Copa AirlinesCheapest$775Average$1,337FlexibilityNo cancel feeOn-time70%

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