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Costa Rica

$122+ Cheap flights from Portland (PDX) 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 1/13. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — SJO
Nov 28 — Dec 51
Fri 11/28
Fri 12/5
1 adult, Economy
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Cheap flight deals from Portland to Costa Rica

Keep the following information in mind while searching for Portland to Costa Rica flight deals. Data was last updated October 29, 2025.

Most accurate provider

Expedia
2 stars

Most trusted provider

Expedia
3 stars

Round-trip from

$276
(United Airlines)

One-way from

$122
(American Airlines)

Popular in

December

Cheapest in

September

Average price

$426
Provider with most accurate pricing for Portland-Costa Rica flight deals.
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Provider most trusted by Cheapflights users for Portland-Costa Rica flights.
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From Portland to Costa Rica
Search Deals
One-way flight from Portland to Costa Rica
Search Deals
Highest demand for flights based on searches. 8% potential increase in price ($54 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($21 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Find flight deals from Portland to Costa Rica

Cheapest flights from Portland to Costa Rica
Explore the most affordable flight options available from Portland to Costa Rica. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 29, 2025.

This United Airlines deal was found by Cheapflights users on 10/27. 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.
Mon 11/107:38 pmPDX - SJO
1 stop10h 54mUnited Airlines
Thu 11/138:45 amSJO - PDX
2 stops16h 06mUnited Airlines
Deal found 10/27$276
This United Airlines deal was found by Cheapflights users on 10/28. 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.
Tue 11/45:00 amPDX - SJO
2 stops13h 39mUnited Airlines
Wed 11/1212:35 pmSJO - PDX
2 stops12h 21mUnited Airlines
Deal found 10/28$280
This SmartFares deal was found by Cheapflights users on 10/28. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/412:33 pmPDX - SJO
1 stop10h 05mAlaska Airlines
Tue 11/111:55 amSJO - PDX
1 stop16h 55mAlaska Airlines
Deal found 10/28$294
This Trip.com deal was found by Cheapflights users on 10/27. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/27:18 amPDX - SJO
1 stop30h 12mMultiple Airlines
Wed 12/107:45 amSJO - PDX
1 stop15h 05mMultiple Airlines
Deal found 10/27$308
This United Airlines deal was found by Cheapflights users on 10/28. 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.
Tue 11/116:00 amPDX - SJO
2 stops12h 39mUnited Airlines
Sat 11/158:45 amSJO - PDX
2 stops13h 53mUnited Airlines
Deal found 10/28$310
This Alaska Airlines deal was found by Cheapflights users on 10/28. 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.
Thu 11/1312:33 pmPDX - SJO
1 stop10h 05mAlaska Airlines
Mon 11/171:55 amSJO - PDX
1 stop13h 55mAlaska Airlines
Deal found 10/28$316
This Delta deal was found by Cheapflights users on 10/28. 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.
Sun 12/711:20 pmPDX - SJO
2 stops21h 00mDelta
Wed 12/177:00 amSJO - PDX
1 stop17h 19mDelta
Deal found 10/28$320
This Alaska Airlines deal was found by Cheapflights users on 10/28. 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.
Tue 11/412:33 pmPDX - SJO
1 stop10h 05mAlaska Airlines
Fri 11/141:55 amSJO - PDX
1 stop22h 39mAlaska Airlines
Deal found 10/28$323
This eDestinos deal was found by Cheapflights users on 10/27. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/37:18 amPDX - SJO
1 stop30h 12mMultiple Airlines
Sun 12/77:45 amSJO - PDX
1 stop15h 05mMultiple Airlines
Deal found 10/27$328
This Alaska Airlines deal was found by Cheapflights users on 10/28. 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 11/55:55 pmPDX - SJO
1 stop28h 43mAlaska Airlines
Sun 11/91:55 amSJO - PDX
1 stop22h 29mAlaska Airlines
Deal found 10/28$329
This United Airlines deal was found by Cheapflights users on 10/27. 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 12/43:55 pmPDX - SJO
1 stop14h 37mUnited Airlines
Wed 12/108:45 amSJO - PDX
2 stops14h 30mUnited Airlines
Deal found 10/27$333
This SmartFares deal was found by Cheapflights users on 10/27. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/42:50 pmPDX - SJO
1 stop31h 48mAlaska Airlines
Mon 11/101:55 amSJO - PDX
1 stop20h 55mAlaska Airlines
Deal found 10/27$342

Cheapflights Fare Finder

 
Customize your flight search to find flights from Portland 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 October 29, 2025.
Use the filters below to find and compare flights from Portland to Costa Rica that are best for you.

Fly from

Portland

Fly to

Costa Rica

Route

Depart

Return

Price

PortlandSan José

PDX - SJO

PDXSJO

Portland

Fri 11/14

12:46 pm-6:55 am

1 stop16h 09m

San José Juan Santamaria Intl

Mon 11/17

2:31 pm-9:40 am

2 stops21h 09m

$320

PortlandLiberia

PDX - LIR

PDXLIR

Portland

Tue 1/20

7:24 am-6:01 pm

1 stop8h 37m

Liberia

Thu 1/29

11:20 am-8:34 pm

1 stop11h 14m

$345

PortlandLiberia

PDX - LIR

PDXLIR

Portland

Sun 2/8

9:45 pm-1:50 pm

1 stop14h 05m

Liberia

Tue 3/3

3:55 pm-11:05 am

1 stop21h 10m

$345

PortlandLiberia

PDX - LIR

PDXLIR

Portland

Mon 3/2

10:35 am-6:45 am

1 stop18h 10m

Liberia

Tue 3/10

10:00 am-11:59 pm

1 stop14h 59m

$345

PortlandLiberia

PDX - LIR

PDXLIR

Portland

Mon 3/9

2:40 pm-6:20 am

1 stop14h 40m

Liberia

Wed 3/11

10:00 am-11:59 pm

1 stop14h 59m

$345

PortlandLiberia

PDX - LIR

PDXLIR

Portland

Wed 2/4

7:00 am-6:37 pm

1 stop9h 37m

Liberia

Wed 2/11

8:35 am-11:06 pm

2 stops16h 31m

$349

PortlandLiberia

PDX - LIR

PDXLIR

Portland

Sun 2/22

6:15 am-12:50 pm

2 stops28h 35m

Liberia

Wed 3/4

2:15 pm-9:29 am

2 stops21h 14m

$349

PortlandLiberia

PDX - LIR

PDXLIR

Portland

Mon 1/19

12:40 am-1:24 pm

1 stop10h 44m

Liberia

Thu 1/29

3:05 pm-12:04 pm

2 stops22h 59m

$349

PortlandLiberia

PDX - LIR

PDXLIR

Portland

Mon 3/9

9:45 pm-11:50 am

1 stop13h 05m

Liberia

Wed 3/11

1:15 pm-8:37 am

2 stops20h 22m

$349

PortlandLiberia

PDX - LIR

PDXLIR

Portland

Tue 2/24

1:38 pm-12:55 pm

2 stops21h 17m

Liberia

Wed 3/4

3:55 pm-11:05 am

1 stop21h 10m

$349

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/29

Showing 1-10 of 34 results
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  • Most accurate provider: When it comes to deals on Portland-Costa Rica flights, users find the pricing of Expedia to be most consistent on Cheapflights vs. Expedia Users can find the same prices on Portland-Costa Rica flight deals on Cheapflights vs. Expedia 90-95% of the time. Price accuracy is based on data collected from Portland-Costa Rica flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Portland-Costa Rica flights, Cheapflights users trust Expedia the most. Expedia has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Portland-Costa Rica flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Portland to Costa Rica

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

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

Currently, September is the cheapest month in which you can book a flight from Portland to Costa Rica (average of $275). Flying from Portland to Costa Rica in April is currently the most expensive (average of $456). 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 PDX to CR?

Find hourly flight availability from Portland 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 October 29, 2025.

It’s typically best to fly out from Portland to Costa Rica at noon. Doing so could potentially save you 41% on the flight price compared to flying in the morning, which is usually more expensive.

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

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

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

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 October 29, 2025.
Read reviews from past customers who have flown Alaska Airlines, Southwest, and Delta from Portland to Costa Rica. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
11,210 reviews

Overall

8.0

Comfort

7.8

Entertainment

7.0

Food

7.1

Boarding

8.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a flight.
Alaska Airlines
8.0
Very good
11,210 reviews
Alaska Airlines
8.0
Very good
11,210 reviews

Overall

8.0

Comfort

7.8

Entertainment

7.0

Food

7.1

Boarding

8.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a flight.
Southwest
8.0
Very good
4,241 reviews
Alaska Airlines
8.0
Very good
11,210 reviews

Overall

8.0

Comfort

7.8

Entertainment

7.0

Food

7.1

Boarding

8.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a flight.
Delta
7.9
Good
7,992 reviews
Alaska Airlines
8.0
Very good
11,210 reviews

Overall

8.0

Comfort

7.8

Entertainment

7.0

Food

7.1

Boarding

8.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a flight.
United Airlines
7.4
Good
8,999 reviews
Alaska Airlines
8.0
Very good
11,210 reviews

Overall

8.0

Comfort

7.8

Entertainment

7.0

Food

7.1

Boarding

8.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a flight.
American Airlines
7.2
Good
11,032 reviews
Alaska Airlines
8.0
Very good
11,210 reviews

Overall

8.0

Comfort

7.8

Entertainment

7.0

Food

7.1

Boarding

8.1

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a flight.

Related info for your journey

Find useful and relevant information for your journey from Portland 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 Portland to Costa Rica?

    Portland (PDX) is the airport you will fly out of if you book a flight from Portland to Costa Rica. It is only a 6.0 mi journey to Portland (PDX) from Portland’s city center.

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

    There are many flights that can get you from Portland to Costa Rica in 8h 37m. Fly via Delta, Alaska Airlines, or United Airlines to get the fastest option. Airlines will cover a distance of 3254 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

    For one-way options, check prices for United Airlines. According to our data, you can fly for as low as $122. Users have also found prices from $122 and $142 on American Airlines and Delta, respectively.

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

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

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

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

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

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

    Currently, September is the cheapest month in which you can book a flight from Portland to Costa Rica (average of $275). Flying from Portland to Costa Rica in April is currently the most expensive (average of $456). 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

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Alternative routes for Portland 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 Portland to Costa Rica

Discover the top 7 airlines that operate flights from Portland 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 October 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$204Average$359FlexibilityNo cancel feeOn-time65%
United AirlinesCheapest$290Average$577FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$331Average$649FlexibilityNo cancel feeOn-time71%
Alaska AirlinesCheapest$345Average$606FlexibilityNo cancel feeOn-time75%
DeltaCheapest$365Average$665FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$502Average$715FlexibilityNo cancel feeOn-time63%
Copa AirlinesCheapest$775Average$1,337FlexibilityNo cancel feeOn-time70%

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