What is the cheapest airline that flies from Portland to Costa Rica?

United Airlines and Alaska Airlines are the most popular carriers operating from Portland to Costa Rica

What airlines fly to Costa Rica?

United Airlines, American Airlines and Alaska Airlines are the top three most popular airlines that fly to Costa Rica from Portland according to our data. United Airlines is the first choice among our users, with 55% of people opting to fly with this airline when traveling to Costa Rica. Keep in mind that there are 5 different airlines that fly to Costa Rica on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from Portland Airport to Costa Rica?

Prices for flights from Portland Airport to Costa Rica refresh daily.

How many operators does momondo search for flights from Portland Airport to Costa Rica?

There are 5 operators available for flights from Portland Airport to Costa Rica as of May 2026.

How old do you have to be to fly from Portland Airport to Costa Rica?

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Portland Airport to Costa Rica.

What documentation or ID do you need to fly to Costa Rica?

The travel and health documents you'll need for your trip to Costa Rica may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Costa Rica. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$176 Cheap Flights from Portland to Costa Rica in 2026

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Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

7:03 am - 11:15 pm

PDX

SJO

15h 12m

2 stops

6:00 am - 8:31 pm

SJO

PDX

16h 31m

2 stops

$376Multiple Airlines

Tue, Oct 27 - Tue, Nov 3

7:50 pm - 8:45 am

PDX

SJO

11h 55m

2 stops

5:45 am - 9:55 pm

SJO

PDX

17h 10m

2 stops

$378Multiple Airlines

Mon, Sep 28 - Thu, Oct 1

7:03 am - 11:15 pm

PDX

SJO

15h 12m

2 stops

6:00 am - 8:35 pm

SJO

PDX

15h 35m

2 stops

$393Multiple Airlines

Thu, Oct 22 - Tue, Oct 27

10:45 am - 11:40 pm

PDX

SJO

11h 55m

2 stops

5:45 am - 8:50 pm

SJO

PDX

16h 05m

2 stops

$395Multiple Airlines

Mon, Aug 17 - Tue, Aug 25

12:53 pm - 11:33 pm

PDX

SJO

9h 40m

1 stop

12:53 am - 1:31 pm

SJO

PDX

13h 38m

1 stop

$418Alaska Airlines

Thu, May 28 - Mon, Jun 1

3:43 pm - 12:10 pm

PDX

LIR

19h 27m

2 stops

1:20 pm - 10:51 pm

LIR

PDX

10h 31m

1 stop

$450United Airlines

Tue, Sep 8 - Tue, Sep 15

11:20 pm - 1:11 pm

PDX

LIR

12h 51m

2 stops

2:45 pm - 10:51 am

LIR

PDX

21h 06m

2 stops

$455American Airlines

Sat, Aug 29 - Sat, Sep 5

11:59 pm - 9:50 am

PDX

LIR

8h 51m

1 stop

8:30 am - 11:03 pm

LIR

PDX

15h 33m

1 stop

$464United Airlines

Sat, May 23 - Sun, May 31

9:27 pm - 6:37 am

PDX

LIR

32h 10m

1 stop

6:39 pm - 9:21 am

LIR

PDX

15h 42m

1 stop

$472Alaska Airlines

Sat, Aug 8 - Mon, Aug 17

11:20 pm - 1:11 pm

PDX

LIR

12h 51m

2 stops

2:45 pm - 10:51 am

LIR

PDX

21h 06m

2 stops

$474American Airlines

Wed, Aug 19 - Mon, Aug 24

American Airlines flights from Portland to Costa Rica

Our best American Airlines deals on Portland to Costa Rica flight tickets

American Airlines

Aug 29

PDX11:59 pmPortland

12h 53m

1 stop

SJO1:52 pmSan José Juan Santamaria Intl

Sep 5

SJO2:52 pmSan José Juan Santamaria Intl

20h 59m

2 stops

PDX10:51 amPortland

$454

American Airlines

Aug 29

PDX11:20 pmPortland

12h 51m

2 stops

LIR1:11 pmLiberia

Sep 5

LIR2:45 pmLiberia

21h 06m

2 stops

PDX10:51 amPortland

$455

American Airlines

Aug 19

PDX11:20 pmPortland

12h 51m

2 stops

LIR1:11 pmLiberia

Aug 24

LIR2:45 pmLiberia

21h 06m

2 stops

PDX10:51 amPortland

$474

Alaska Airlines flights from Portland to Costa Rica

Our best Alaska Airlines deals on Portland to Costa Rica flight tickets

Alaska Airlines

May 28

PDX12:53 pmPortland

9h 40m

1 stop

SJO11:33 pmSan José Juan Santamaria Intl

Jun 1

SJO12:53 amSan José Juan Santamaria Intl

13h 38m

1 stop

PDX1:31 pmPortland

$418

Alaska Airlines

May 27

PDX2:33 pmPortland

32h 00m

1 stop

SJO11:33 pmSan José Juan Santamaria Intl

Jun 2

SJO12:53 amSan José Juan Santamaria Intl

16h 45m

1 stop

PDX4:38 pmPortland

$426

Alaska Airlines

May 27

PDX5:40 pmPortland

28h 53m

1 stop

SJO11:33 pmSan José Juan Santamaria Intl

Jun 3

SJO12:53 amSan José Juan Santamaria Intl

23h 51m

1 stop

PDX11:44 pmPortland

$434

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PortlandSan José

PDX - SJO

PDXSJO

Portland

Tue 10/27

7:03 am-11:15 pm

2 stops15h 12m

San José Juan Santamaria Intl

Tue 11/3

6:00 am-8:31 pm

2 stops16h 31m

$376

PortlandSan José

PDX - SJO

PDXSJO

Portland

Mon 9/28

7:50 pm-8:45 am

2 stops11h 55m

San José Juan Santamaria Intl

Thu 10/1

5:45 am-9:55 pm

2 stops17h 10m

$378

PortlandSan José

PDX - SJO

PDXSJO

Portland

Thu 10/22

7:03 am-11:15 pm

2 stops15h 12m

San José Juan Santamaria Intl

Tue 10/27

6:00 am-8:35 pm

2 stops15h 35m

$393

PortlandSan José

PDX - SJO

PDXSJO

Portland

Mon 8/17

10:45 am-11:40 pm

2 stops11h 55m

San José Juan Santamaria Intl

Tue 8/25

5:45 am-8:50 pm

2 stops16h 05m

$395

Quickest round-trip

PortlandSan José

PDX - SJO

PDXSJO

Portland

Thu 5/28

12:53 pm-11:33 pm

1 stop9h 40m

San José Juan Santamaria Intl

Mon 6/1

12:53 am-1:31 pm

1 stop13h 38m

$418

PortlandLiberia

PDX - LIR

PDXLIR

Portland

Tue 9/8

3:43 pm-12:10 pm

2 stops19h 27m

Liberia

Tue 9/15

1:20 pm-10:51 pm

1 stop10h 31m

$450

PortlandLiberia

PDX - LIR

PDXLIR

Portland

Sat 8/29

11:20 pm-1:11 pm

2 stops12h 51m

Liberia

Sat 9/5

2:45 pm-10:51 am

2 stops21h 06m

$455

PortlandLiberia

PDX - LIR

PDXLIR

Portland

Sat 5/23

11:59 pm-9:50 am

1 stop8h 51m

Liberia

Sun 5/31

8:30 am-11:03 pm

1 stop15h 33m

$464

PortlandLiberia

PDX - LIR

PDXLIR

Portland

Sat 8/8

9:27 pm-6:37 am

1 stop32h 10m

Liberia

Mon 8/17

6:39 pm-9:21 am

1 stop15h 42m

$472

PortlandLiberia

PDX - LIR

PDXLIR

Portland

Wed 8/19

11:20 pm-1:11 pm

2 stops12h 51m

Liberia

Mon 8/24

2:45 pm-10:51 am

2 stops21h 06m

$474

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Portland to Costa Rica

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

What is the cheapest month to fly to Costa Rica?

The cheapest month to fly to Costa Rica from Portland is in September. Flight prices, which tend to average around $146, are often lower during this time because this is during the off-season. If you’re not able to fly to Costa Rica in September, then April is your next best option. Flight prices from Portland to Costa Rica during April average around $157.

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

You are more likely to see cheaper flights to Costa Rica from Portland when booking weeks ahead of your departure date. In general, you can expect to find flights to Costa Rica for around $504 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Costa Rica from Portland for as low as $396 on momondo.

Can stopping save me money on Portland to Costa Rica flights?

You could potentially save up to 8% on your flight if you consider stops on a Portland to Costa Rica flight.

Cheap Portland to Costa Rica flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Portland to Costa Rica

Fastest flight time	8h 51m
Direct flights	None

The fastest flight from Portland to Costa Rica takes 8h 51m

There are no direct flights from Portland to Costa Rica. There are no popular flight routes from Portland to Costa Rica.

Search flight deals

Frequently asked questions about flying from Portland to Costa Rica

When did momondo last update prices for flights from Portland Airport to Costa Rica?
Prices for flights from Portland Airport to Costa Rica refresh daily.
How many operators does momondo search for flights from Portland Airport to Costa Rica?
There are 5 operators available for flights from Portland Airport to Costa Rica as of May 2026.
How old do you have to be to fly from Portland Airport to Costa Rica?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Portland Airport to Costa Rica.
What documentation or ID do you need to fly to Costa Rica?
The travel and health documents you'll need for your trip to Costa Rica may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Costa Rica. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Portland to Costa Rica

Compare and see reviews for airlines that fly from Portland to Costa Rica with momondo

Airline	Rating	Free Cancellation	Price
American Airlines	PriceFrom $275	Free Cancellation	Rating 7.1 11,672 reviews	Search American Airlines flights
United Airlines	PriceFrom $275	Free Cancellation	Rating 7.4 9,698 reviews	Search United Airlines flights
Delta	PriceFrom $287	Free Cancellation	Rating 7.9 8,455 reviews	Search Delta flights
Alaska Airlines	PriceFrom $295	Free Cancellation	Rating 7.9 12,352 reviews	Search Alaska Airlines flights
Southwest	PriceFrom $492	Free Cancellation	Rating 7.9 4,301 reviews	Search Southwest flights

Why use momondo?

Why should I use momondo to find a flight deal from Portland to Costa Rica?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Portland to Costa Rica. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Portland to Costa Rica with flexible booking policies on momondo?

momondo does allow users to show only those flights to Costa Rica from Portland which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Portland to Costa Rica?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Portland to Costa Rica.

I’m not ready to book a flight from Portland to Costa Rica right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Portland to Costa Rica flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

An easier way to manage your Costa Rica trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

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Flights to San Joséfrom $241

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Cheap flights from Portland to Costa Rica from $176

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Portland to Costa Rica departing on 9/14. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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American Airlines flights from Portland to Costa Rica

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How to get the cheapest flight ticket from Portland to Costa Rica

What is the cheapest month to fly to Costa Rica?

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

Can stopping save me money on Portland to Costa Rica flights?

What is the cheapest airline that flies from Portland to Costa Rica?

What airlines fly to Costa Rica?

Cheap Portland to Costa Rica flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Portland to Costa Rica

Fastest flight time

Direct flights

Frequently asked questions about flying from Portland to Costa Rica

Best airlines flying from Portland to Costa Rica

Compare and see reviews for airlines that fly from Portland to Costa Rica with momondo

Why use momondo?

An easier way to manage your Costa Rica trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Costa Rica

Popular cities in Costa Rica

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Portland flight routes

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Fly your favorite airline to Costa Rica

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List of cabin classes available on flights landing in Costa Rica. Availability may vary depending on flight origin and airline.

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