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$151+ 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 11/23. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — SJO
Jul 9 — Jul 161
Thu 7/9
Thu 7/16
1 adult, Economy
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Cheap 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 9, 2026.

This United Airlines deal was found by Cheapflights users on 6/9. 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 11/37:49 pm
PDX
-
SJO
2 stops13h 36m
United Airlines
Tue 11/1012:35 pm
SJO
-
PDX
1 stop12h 36m
United Airlines
Deal found 6/9$344
This American Airlines deal was found by Cheapflights users on 6/8. 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 9/2811:06 pm
PDX
-
SJO
2 stops20h 01m
American Airlines
Thu 10/16:00 am
SJO
-
PDX
2 stops18h 23m
American Airlines
Deal found 6/8$349
This United Airlines deal was found by Cheapflights users on 6/8. 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 10/267:49 pm
PDX
-
SJO
2 stops13h 36m
United Airlines
Wed 11/412:35 pm
SJO
-
PDX
1 stop12h 36m
United Airlines
Deal found 6/8$390
This United Airlines deal was found by Cheapflights users on 6/9. 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 10/66:50 am
PDX
-
SJO
1 stop11h 47m
United Airlines
Tue 10/137:55 am
SJO
-
PDX
2 stops16h 02m
United Airlines
Deal found 6/9$395
This oojo deal was found by Cheapflights users on 6/7. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/277:03 am
PDX
-
SJO
2 stops15h 12m
Multiple Airlines
Sat 9/55:45 am
SJO
-
PDX
2 stops16h 05m
Multiple Airlines
Deal found 6/7$405
This United Airlines deal was found by Cheapflights users on 6/8. 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 9/97:10 am
PDX
-
SJO
1 stop11h 27m
United Airlines
Mon 9/148:45 am
SJO
-
PDX
1 stop15h 00m
United Airlines
Deal found 6/8$406
This oojo deal was found by Cheapflights users on 6/8. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/109:27 pm
PDX
-
SJO
2 stops24h 48m
Multiple Airlines
Mon 8/173:10 pm
SJO
-
PDX
2 stops19h 11m
Multiple Airlines
Deal found 6/8$408
This oojo deal was found by Cheapflights users on 6/8. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/149:27 pm
PDX
-
SJO
2 stops24h 48m
Multiple Airlines
Sun 8/2312:40 pm
SJO
-
PDX
3 stops21h 45m
Multiple Airlines
Deal found 6/8$409
This oojo deal was found by Cheapflights users on 6/9. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/210:48 am
PDX
-
SJO
2 stops11h 52m
Multiple Airlines
Thu 8/135:05 am
SJO
-
PDX
2 stops12h 42m
Multiple Airlines
Deal found 6/9$411
This oojo deal was found by Cheapflights users on 6/8. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/275:00 pm
PDX
-
SJO
3 stops17h 45m
Multiple Airlines
Tue 11/35:05 am
SJO
-
PDX
2 stops13h 30m
Multiple Airlines
Deal found 6/8$412
This eDestinos deal was found by Cheapflights users on 6/7. 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.
Fri 8/1410:45 am
PDX
-
SJO
2 stops11h 55m
Multiple Airlines
Thu 8/275:45 am
SJO
-
PDX
1 stop32h 40m
Multiple Airlines
Deal found 6/7$413
This Avianca deal was found by Cheapflights users on 6/9. 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 Avianca is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/17:03 am
PDX
-
SJO
2 stops15h 12m
Multiple Airlines
Tue 9/85:45 am
SJO
-
PDX
2 stops17h 10m
Multiple Airlines
Deal found 6/9$416

Find 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 9, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$344
(United Airlines)

One-way from

$151
(American Airlines)

Popular in

June

Cheapest in

September

Average price

$683
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 Portland to Costa Rica
Search Deals
One-way flight from Portland to Costa Rica
Search Deals
Highest demand for flights based on searches. 16% potential increase in price ($102 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($16 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2026
Search Deals

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 9, 2026.
Use the filters below to find and compare flights from Portland to Costa Rica that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip
Quickest round-trip

PortlandLiberia

PDX - LIR

PDXLIR

Portland

Tue 11/10

7:10 am-6:37 pm

1 stop9h 27m

Liberia

Wed 11/18

12:50 pm-8:49 pm

1 stop9h 59m

$436

PortlandLiberia

PDX - LIR

PDXLIR

Portland

Mon 7/6

5:00 am-3:19 pm

1 stop9h 19m

Liberia

Mon 7/13

11:49 am-9:15 pm

1 stop10h 26m

$458

PortlandLiberia

PDX - LIR

PDXLIR

Portland

Sun 9/6

7:15 pm-12:10 pm

2 stops15h 55m

Liberia

Sat 9/12

1:20 pm-10:11 am

3 stops21h 51m

$515

PortlandSan José

PDX - SJO

PDXSJO

Portland

Wed 7/1

11:59 pm-10:11 am

1 stop9h 12m

San José Juan Santamaria Intl

Mon 7/6

7:55 am-7:18 pm

1 stop12h 23m

$522

PortlandLiberia

PDX - LIR

PDXLIR

Portland

Mon 11/2

6:59 pm-1:10 pm

2 stops16h 11m

Liberia

Fri 11/6

12:50 pm-10:38 pm

1 stop11h 48m

$561

PortlandLiberia

PDX - LIR

PDXLIR

Portland

Wed 11/25

6:59 pm-6:37 pm

2 stops21h 38m

Liberia

Thu 12/3

2:20 pm-9:40 am

2 stops21h 20m

$575

PortlandLiberia

PDX - LIR

PDXLIR

Portland

Mon 6/22

11:59 pm-9:50 am

1 stop8h 51m

Liberia

Mon 7/13

3:27 pm-9:47 am

2 stops19h 20m

$585

PortlandLiberia

PDX - LIR

PDXLIR

Portland

Wed 7/8

6:50 pm-3:19 pm

1 stop19h 29m

Liberia

Tue 7/14

1:20 pm-9:47 am

2 stops21h 27m

$585

PortlandSan José

PDX - SJO

PDXSJO

Portland

Mon 9/28

11:59 pm-12:21 pm

1 stop11h 22m

San José Juan Santamaria Intl

Thu 10/1

8:45 am-12:59 am

1 stop17h 14m

$588

PortlandSan José

PDX - SJO

PDXSJO

Portland

Wed 9/2

7:10 am-7:37 pm

1 stop11h 27m

San José Juan Santamaria Intl

Sun 9/13

8:45 am-12:34 am

1 stop16h 49m

$588

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/6

Showing 1-10 of 33 resultsSorted by cheapest first
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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 $146). Flying from Portland to Costa Rica in May is currently the most expensive (average of $309). 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.

How far ahead should I book a flight from Portland to Costa Rica?

To ensure you get the cheapest price possible for a flight from Portland to Costa Rica, you should look to book at least 30 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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 9, 2026.
Read reviews from past customers who have flown Alaska Airlines,Southwest, andDelta 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
7.9
Good
12,484 reviews

Crew

8.5

Overall

7.9

Entertainment

7.0

Boarding

8.1

Comfort

7.8

Food

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2026

SEA - RNO

There was a delay and my husband needs a wheelchair and we were moved from 1 gate to another.
Alaska Airlines
7.9
Good
12,484 reviews
Alaska Airlines
7.9
Good
12,484 reviews

Crew

8.5

Overall

7.9

Entertainment

7.0

Boarding

8.1

Comfort

7.8

Food

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2026

SEA - RNO

There was a delay and my husband needs a wheelchair and we were moved from 1 gate to another.
Southwest
7.9
Good
4,240 reviews
Alaska Airlines
7.9
Good
12,484 reviews

Crew

8.5

Overall

7.9

Entertainment

7.0

Boarding

8.1

Comfort

7.8

Food

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2026

SEA - RNO

There was a delay and my husband needs a wheelchair and we were moved from 1 gate to another.
Delta
7.9
Good
8,394 reviews
Alaska Airlines
7.9
Good
12,484 reviews

Crew

8.5

Overall

7.9

Entertainment

7.0

Boarding

8.1

Comfort

7.8

Food

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2026

SEA - RNO

There was a delay and my husband needs a wheelchair and we were moved from 1 gate to another.
United Airlines
7.4
Good
9,796 reviews
Alaska Airlines
7.9
Good
12,484 reviews

Crew

8.5

Overall

7.9

Entertainment

7.0

Boarding

8.1

Comfort

7.8

Food

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2026

SEA - RNO

There was a delay and my husband needs a wheelchair and we were moved from 1 gate to another.
American Airlines
7.1
Good
11,640 reviews
Alaska Airlines
7.9
Good
12,484 reviews

Crew

8.5

Overall

7.9

Entertainment

7.0

Boarding

8.1

Comfort

7.8

Food

7.1

Reviews

1 / 20
4.0
Okay

Anonymous,Jun 2026

SEA - RNO

There was a delay and my husband needs a wheelchair and we were moved from 1 gate to another.

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 9h 27m. Fly via United Airlines to get the fastest option. Airlines will cover a distance of 3254 mi.

  • 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 $106. Users have also found prices from $121 and $144 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 $146). Flying from Portland to Costa Rica in May is currently the most expensive (average of $309). 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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Top 5 airlines flying from Portland to Costa Rica

Discover the top 5 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 9, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$275Average$540FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$275Average$515FlexibilityNo cancel feeOn-time69%
DeltaCheapest$287Average$409FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$295Average$549FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$492Average$984FlexibilityNo cancel feeOn-time63%

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