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$133+ 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 2/15. Fares are subject to change and may not be available on all flights or dates of travel.
PDX — SJO
Feb 26 — Mar 51
Thu 2/26
Thu 3/5
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 January 27, 2026.

This American Airlines deal was found by Cheapflights users on 1/27. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/111:35 pm
PDX
-
SJO
1 stop18h 37m
American Airlines
Tue 3/107:00 am
SJO
-
PDX
1 stop17h 44m
American Airlines
Deal found 1/27$297
This Trip.com deal was found by Cheapflights users on 1/26. 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.
Mon 2/27:00 am
PDX
-
SJO
1 stop30h 30m
Multiple Airlines
Mon 2/97:45 am
SJO
-
PDX
1 stop14h 42m
Multiple Airlines
Deal found 1/26$305
This Trip.com deal was found by Cheapflights users on 1/25. 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 3/37:00 am
PDX
-
SJO
1 stop30h 30m
Multiple Airlines
Mon 3/97:45 am
SJO
-
PDX
1 stop13h 59m
Multiple Airlines
Deal found 1/25$306
This United Airlines deal was found by Cheapflights users on 1/26. 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.
Fri 4/1711:59 pm
PDX
-
SJO
1 stop10h 56m
United Airlines
Fri 5/88:45 am
SJO
-
PDX
1 stop17h 14m
United Airlines
Deal found 1/26$308
This Trip.com deal was found by Cheapflights users on 1/26. 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 3/37:00 am
PDX
-
SJO
1 stop30h 30m
Multiple Airlines
Tue 3/107:45 am
SJO
-
PDX
1 stop13h 59m
Multiple Airlines
Deal found 1/26$310
This United Airlines deal was found by Cheapflights users on 1/26. 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 2/23:50 pm
PDX
-
SJO
1 stop14h 42m
United Airlines
Tue 4/287:55 am
SJO
-
PDX
2 stops17h 49m
United Airlines
Deal found 1/26$313
This American Airlines deal was found by Cheapflights users on 1/27. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/2710:45 pm
PDX
-
SJO
1 stop11h 22m
American Airlines
Thu 5/711:35 pm
SJO
-
PDX
1 stop24h 14m
American Airlines
Deal found 1/27$316
This Trip.com deal was found by Cheapflights users on 1/26. 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.
Mon 4/67:00 am
PDX
-
SJO
1 stop31h 05m
Multiple Airlines
Mon 4/137:45 am
SJO
-
PDX
1 stop13h 50m
Multiple Airlines
Deal found 1/26$318
This Trip.com deal was found by Cheapflights users on 1/26. 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 4/147:14 am
PDX
-
SJO
2 stops15h 01m
Multiple Airlines
Tue 4/217:45 am
SJO
-
PDX
1 stop13h 50m
Multiple Airlines
Deal found 1/26$325
This American Airlines deal was found by Cheapflights users on 1/25. 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 2/249:44 pm
PDX
-
LIR
1 stop12h 53m
American Airlines
Wed 3/42:32 pm
LIR
-
PDX
1 stop11h 45m
American Airlines
Deal found 1/25$366
This United Airlines deal was found by Cheapflights users on 1/25. 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 2/247:10 am
PDX
-
LIR
1 stop9h 27m
United Airlines
Wed 3/48:35 am
LIR
-
PDX
2 stops16h 39m
United Airlines
Deal found 1/25$371
This American Airlines deal was found by Cheapflights users on 1/27. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/2410:53 pm
PDX
-
LIR
1 stop13h 20m
American Airlines
Tue 3/33:29 pm
LIR
-
PDX
1 stop29h 47m
American Airlines
Deal found 1/27$376

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 January 27, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$297
(American Airlines)

One-way from

$133
(American Airlines)

Popular in

March

Cheapest in

September

Average price

$435
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. 15% potential increase in price ($101 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($18 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 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 January 27, 2026.
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

Mon 4/20

3:30 pm-7:15 am

1 stop14h 45m

San José Juan Santamaria Intl

Fri 5/1

7:55 am-7:38 pm

1 stop12h 43m

$339

PortlandSan José

PDX - SJO

PDXSJO

Portland

Tue 2/24

7:10 am-6:16 pm

1 stop9h 06m

San José Juan Santamaria Intl

Tue 3/10

8:40 am-11:04 pm

1 stop15h 24m

$351

PortlandSan José

PDX - SJO

PDXSJO

Portland

Tue 3/3

7:57 pm-8:32 am

1 stop10h 35m

San José Juan Santamaria Intl

Tue 3/10

8:40 am-11:04 pm

1 stop15h 24m

$351

PortlandLiberia

PDX - LIR

PDXLIR

Portland

Wed 3/11

11:59 pm-11:55 am

1 stop10h 56m

Liberia

Wed 3/18

7:35 am-11:11 pm

1 stop16h 36m

$366

PortlandLiberia

PDX - LIR

PDXLIR

Portland

Wed 4/29

7:05 pm-3:25 pm

1 stop19h 20m

Liberia

Wed 5/6

1:20 pm-10:59 pm

1 stop10h 39m

$366

PortlandLiberia

PDX - LIR

PDXLIR

Portland

Mon 4/20

10:45 pm-11:28 am

1 stop11h 43m

Liberia

Tue 5/5

12:29 pm-10:20 am

2 stops22h 51m

$371

PortlandLiberia

PDX - LIR

PDXLIR

Portland

Tue 2/24

11:35 pm-2:25 pm

2 stops12h 50m

Liberia

Tue 3/3

3:29 pm-10:58 am

2 stops21h 29m

$371

PortlandLiberia

PDX - LIR

PDXLIR

Portland

Tue 2/24

7:10 am-6:37 pm

1 stop9h 27m

Liberia

Wed 3/4

8:35 am-11:14 pm

2 stops16h 39m

$371

PortlandSan José

PDX - SJO

PDXSJO

Portland

Sat 4/18

5:49 pm-11:53 pm

1 stop29h 04m

San José Juan Santamaria Intl

Tue 5/12

12:53 am-11:33 am

1 stop11h 40m

$376

PortlandSan José

PDX - SJO

PDXSJO

Portland

Wed 4/15

7:14 pm-7:15 am

1 stop11h 01m

San José Juan Santamaria Intl

Sat 4/25

8:45 am-8:48 pm

1 stop13h 03m

$378

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/25

Showing 1-10 of 35 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, January 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 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.

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 January 27, 2026.
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
11,795 reviews

Comfort

7.8

Boarding

8.1

Food

7.1

Entertainment

7.0

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
Alaska Airlines
8.0
Very good
11,795 reviews
Alaska Airlines
8.0
Very good
11,795 reviews

Comfort

7.8

Boarding

8.1

Food

7.1

Entertainment

7.0

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
Southwest
8.0
Very good
4,268 reviews
Alaska Airlines
8.0
Very good
11,795 reviews

Comfort

7.8

Boarding

8.1

Food

7.1

Entertainment

7.0

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
Delta
7.9
Good
8,118 reviews
Alaska Airlines
8.0
Very good
11,795 reviews

Comfort

7.8

Boarding

8.1

Food

7.1

Entertainment

7.0

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
United Airlines
7.4
Good
9,205 reviews
Alaska Airlines
8.0
Very good
11,795 reviews

Comfort

7.8

Boarding

8.1

Food

7.1

Entertainment

7.0

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading
American Airlines
7.2
Good
11,197 reviews
Alaska Airlines
8.0
Very good
11,795 reviews

Comfort

7.8

Boarding

8.1

Food

7.1

Entertainment

7.0

Crew

8.5

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Jan 2026

STS - LAX

Enjoyed staff assistance from ticking thru tsa , boarding and in the plane Couldn’t pick a seat except upgrading

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 11h 43m. Fly via United Airlines, American Airlines, or Alaska 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 American Airlines. According to our data, you can fly for as low as $121. Users have also found prices from $121 and $156 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, January 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 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

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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
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Portland to Panama City flights
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Redmond to Liberia flights
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Portland to San Pedro Sula flights
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Portland to Managua flights
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Medford to Liberia flights
Eugene to Liberia flights
Redmond to San Salvador flights
Redmond to Coxen Hole flights
Boise to Coxen Hole flights
Boise to San Salvador flights
Eugene to Managua flights
Eugene to Philip S.W.Goldson flights
Boise to Panama City flights
Medford to Panama City flights
Medford to Managua flights
Eugene to Guatemala City flights
Redmond to Guatemala City flights
North Bend to San José flights
Redmond to Managua flights
North Bend to Liberia flights
Portland to Flores flights
Redmond to San Pedro Sula flights

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 January 27, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$275Average$571FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$275Average$531FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$302Average$593FlexibilityNo cancel feeOn-time75%
DeltaCheapest$315Average$596FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$537Average$715FlexibilityNo cancel feeOn-time63%

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