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$141+ 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 7/26. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — SJO
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
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 June 12, 2025.

Round-trip from

$313
(Alaska Airlines)

One-way from

$141
(American Airlines)

Popular in

December

Cheapest in

May

Average price

$703
From Portland to Costa Rica
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One-way flight from Portland to Costa Rica
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Highest demand for flights based on searches. 5% potential increase in price ($36 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($24 potential savings vs. average RT price).
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Average for round-trip flights in June 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 June 12, 2025.

This Alaska Airlines deal was found by Cheapflights users on 6/10. 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 8/117:35 pmPDX - LIR
1 stop19h 18mAlaska Airlines
Tue 8/194:58 pmLIR - PDX
1 stop17h 27mAlaska Airlines
Deal found 6/10$313
This American Airlines deal was found by Cheapflights users on 6/11. 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.
Mon 7/2812:59 amPDX - LIR
1 stop12h 46mAmerican Airlines
Thu 8/142:26 pmLIR - PDX
2 stops19h 58mAmerican Airlines
Deal found 6/11$317
This American Airlines deal was found by Cheapflights users on 6/12. 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 9/239:56 pmPDX - SJO
2 stops20h 46mAmerican Airlines
Fri 10/102:25 pmSJO - PDX
2 stops21h 06mAmerican Airlines
Deal found 6/12$340
This United Airlines deal was found by Cheapflights users on 6/11. 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 9/237:04 amPDX - SJO
1 stop11h 33mUnited Airlines
Fri 10/108:37 amSJO - PDX
1 stop15h 08mUnited Airlines
Deal found 6/11$348
This United Airlines deal was found by Cheapflights users on 6/10. 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 10/411:55 pmPDX - LIR
1 stop11h 15mUnited Airlines
Wed 10/81:20 pmLIR - PDX
1 stop10h 07mUnited Airlines
Deal found 6/10$353
This Delta deal was found by Cheapflights users on 6/10. 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 11/15:10 pmPDX - SJO
2 stops18h 38mDelta
Tue 11/187:00 amSJO - PDX
1 stop14h 08mDelta
Deal found 6/10$370
This Booking.com deal was found by Cheapflights users on 6/12. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/812:12 pmPDX - SJO
2 stops21h 59mSpirit Airlines
Mon 7/1412:16 pmSJO - PDX
2 stops22h 02mSpirit Airlines
Deal found 6/12$390
This Mytrip deal was found by Cheapflights users on 6/12. 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 7/812:12 pmPDX - SJO
2 stops21h 59mMultiple Airlines
Mon 7/142:48 pmSJO - PDX
3 stops24h 27mMultiple Airlines
Deal found 6/12$405
This Alaska Airlines deal was found by Cheapflights users on 6/10. 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 8/510:30 amPDX - SJO
1 stop12h 00mAlaska Airlines
Mon 8/1112:50 amSJO - PDX
1 stop11h 41mAlaska Airlines
Deal found 6/10$423
This American Airlines deal was found by Cheapflights users on 6/10. 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.
Mon 8/117:35 pmPDX - LIR
2 stops16h 24mMultiple Airlines
Tue 8/191:59 pmLIR - PDX
2 stops21h 45mMultiple Airlines
Deal found 6/10$444
This Southwest deal was found by Cheapflights users on 6/10. 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.
Wed 6/118:15 pmPDX - SJO
2 stops22h 25mSouthwest
Sat 6/1412:00 pmSJO - PDX
1 stop12h 20mSouthwest
Deal found 6/10$560
This Air Canada deal was found by Cheapflights users on 6/11. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/2010:10 amPDX - LIR
2 stops24h 45mAir Canada
Thu 11/273:00 pmLIR - PDX
2 stops25h 44mAir Canada
Deal found 6/11$581

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 June 12, 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

PortlandLiberia

PDX - LIR

PDXLIR

Portland

Mon 8/11

7:35 pm-3:53 pm

1 stop19h 18m

Liberia

Tue 8/19

4:58 pm-9:25 am

1 stop17h 27m

$313

PortlandLiberia

PDX - LIR

PDXLIR

Portland

Mon 7/28

12:59 am-2:45 pm

1 stop12h 46m

Liberia

Thu 8/14

2:26 pm-9:24 am

2 stops19h 58m

$317

PortlandSan José

PDX - SJO

PDXSJO

Portland

Tue 9/23

9:56 pm-7:42 pm

2 stops20h 46m

San José Juan Santamaria Intl

Fri 10/10

2:25 pm-10:31 am

2 stops21h 06m

$340

PortlandSan José

PDX - SJO

PDXSJO

Portland

Tue 9/23

7:04 am-7:37 pm

1 stop11h 33m

San José Juan Santamaria Intl

Fri 10/10

8:37 am-10:45 pm

1 stop15h 08m

$348

PortlandLiberia

PDX - LIR

PDXLIR

Portland

Sat 10/4

11:55 pm-12:10 pm

1 stop11h 15m

Liberia

Wed 10/8

1:20 pm-10:27 pm

1 stop10h 07m

$353

PortlandSan José

PDX - SJO

PDXSJO

Portland

Sat 11/1

5:10 pm-12:48 pm

2 stops18h 38m

San José Juan Santamaria Intl

Mon 11/17

7:00 am-10:20 pm

2 stops17h 20m

$370

PortlandSan José

PDX - SJO

PDXSJO

Portland

Tue 7/8

12:12 pm-11:11 am

2 stops21h 59m

San José Juan Santamaria Intl

Mon 7/14

12:16 pm-9:18 am

2 stops22h 02m

$390

PortlandSan José

PDX - SJO

PDXSJO

Portland

Tue 7/8

12:12 pm-11:11 am

2 stops21h 59m

San José Juan Santamaria Intl

Mon 7/14

2:48 pm-2:15 pm

3 stops24h 27m

$405

PortlandSan José

PDX - SJO

PDXSJO

Portland

Tue 8/5

10:30 am-11:30 pm

1 stop12h 00m

San José Juan Santamaria Intl

Mon 8/11

12:50 am-11:31 am

1 stop11h 41m

$423

PortlandLiberia

PDX - LIR

PDXLIR

Portland

Mon 8/11

7:35 pm-12:59 pm

2 stops16h 24m

Liberia

Tue 8/19

1:59 pm-10:44 am

2 stops21h 45m

$444

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

Showing 1-10 of 27 results
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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 $398). Flying from Portland 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 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 June 12, 2025.

When flying from Portland 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 June 12, 2025.
See what other customers who have flown with Alaska Airlines, Southwest and Delta from Portland to Costa Rica have to say. 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
10,000 reviews

Boarding

8.1

Food

7.1

Crew

8.5

Comfort

7.8

Overall

8.0

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Surinder,May 2025

SEA - YYZ

My wife wanted the aile seat and I always prefer window seat. Luckily we both got the best seats we wanted. The plane was very nice and we enjoyed the best take off and the smooth landing at Toronto. All the services by the staff inside the aeroplane were very nice well appreciated. Thanks again and hope to see you soon.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Food

7.1

Crew

8.5

Comfort

7.8

Overall

8.0

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Surinder,May 2025

SEA - YYZ

My wife wanted the aile seat and I always prefer window seat. Luckily we both got the best seats we wanted. The plane was very nice and we enjoyed the best take off and the smooth landing at Toronto. All the services by the staff inside the aeroplane were very nice well appreciated. Thanks again and hope to see you soon.
Southwest
8.0
Very good
4,287 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Food

7.1

Crew

8.5

Comfort

7.8

Overall

8.0

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Surinder,May 2025

SEA - YYZ

My wife wanted the aile seat and I always prefer window seat. Luckily we both got the best seats we wanted. The plane was very nice and we enjoyed the best take off and the smooth landing at Toronto. All the services by the staff inside the aeroplane were very nice well appreciated. Thanks again and hope to see you soon.
Delta
8.0
Very good
7,950 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Food

7.1

Crew

8.5

Comfort

7.8

Overall

8.0

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Surinder,May 2025

SEA - YYZ

My wife wanted the aile seat and I always prefer window seat. Luckily we both got the best seats we wanted. The plane was very nice and we enjoyed the best take off and the smooth landing at Toronto. All the services by the staff inside the aeroplane were very nice well appreciated. Thanks again and hope to see you soon.
United Airlines
7.4
Good
8,790 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Food

7.1

Crew

8.5

Comfort

7.8

Overall

8.0

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Surinder,May 2025

SEA - YYZ

My wife wanted the aile seat and I always prefer window seat. Luckily we both got the best seats we wanted. The plane was very nice and we enjoyed the best take off and the smooth landing at Toronto. All the services by the staff inside the aeroplane were very nice well appreciated. Thanks again and hope to see you soon.
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Food

7.1

Crew

8.5

Comfort

7.8

Overall

8.0

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

Surinder,May 2025

SEA - YYZ

My wife wanted the aile seat and I always prefer window seat. Luckily we both got the best seats we wanted. The plane was very nice and we enjoyed the best take off and the smooth landing at Toronto. All the services by the staff inside the aeroplane were very nice well appreciated. Thanks again and hope to see you soon.

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.

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

    For one-way options, check prices for American Airlines. According to our data, you can fly for as low as $141. Users have also found prices from $164 and $177 on United Airlines and Alaska Airlines, 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 $398). Flying from Portland 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 Portland to Costa Rica

See prices for flight routes from nearby airports that may be better suited for you.
Portland to San José flights
Portland to Philip S.W.Goldson flights
Portland to Liberia flights
Portland to Panama City flights
Portland to Guatemala City flights
Boise to San José flights
Boise to Philip S.W.Goldson flights
Portland to Coxen Hole flights
Boise to Liberia flights
Portland to San Salvador flights
Boise to Panama City flights
Eugene to San José flights
Eugene to Liberia flights
Redmond to Liberia flights
Portland to Managua flights
Redmond to Philip S.W.Goldson flights
Medford to San José flights
Eugene to Philip S.W.Goldson flights
Portland to San Pedro Sula flights
Boise to Coxen Hole flights
Redmond to San José flights
Boise to San Salvador flights
Redmond to Managua flights
Redmond to Guatemala City flights
Boise to Guatemala City flights
Medford to Panama City flights
Medford to Liberia flights
Portland to Flores flights
North Bend to San José flights
North Bend to Liberia flights
Medford to Managua flights
Eugene to Managua flights
Redmond to Coxen Hole flights
Redmond to San Salvador flights
Redmond to San Pedro Sula flights
Eugene to Guatemala City flights

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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$204Average$359FlexibilityNo cancel feeOn-time65%
United AirlinesCheapest$387Average$667FlexibilityNo cancel feeOn-time69%
DeltaCheapest$390Average$619FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$391Average$626FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$423Average$660FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$484Average$703FlexibilityNo cancel feeOn-time63%
Copa AirlinesCheapest$775Average$1,335FlexibilityNo cancel feeOn-time70%

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