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

United Airlines is the most popular carrier 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 57% 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 July 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.

$198 Cheap Flights from Portland to Costa Rica in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Portland to Costa Rica

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

5:45 am - 8:36 pm

SJO

PDX

15h 51m

2 stops

$414Multiple Airlines

Tue, Sep 1 - Tue, Sep 15

6:47 am - 11:15 pm

PDX

SJO

14h 28m

2 stops

5:45 am - 11:54 pm

SJO

PDX

20h 09m

2 stops

$416Multiple Airlines

Mon, Nov 9 - Mon, Dec 14

7:03 am - 11:15 pm

PDX

SJO

15h 12m

2 stops

9:40 am - 9:25 am

SJO

PDX

24h 45m

2 stops

$417Multiple Airlines

Tue, Sep 1 - Mon, Sep 14

7:20 am - 11:15 pm

PDX

SJO

14h 55m

2 stops

7:45 pm - 10:50 am

SJO

PDX

16h 05m

3 stops

$418Multiple Airlines

Sat, Aug 15 - Sat, Aug 22

10:55 pm - 2:13 pm

PDX

LIR

13h 18m

2 stops

3:13 pm - 11:45 am

LIR

PDX

22h 32m

2 stops

$471American Airlines

Sun, Jan 3 - Wed, Jan 13

5:00 am - 3:10 pm

PDX

LIR

9h 10m

1 stop

4:56 pm - 12:01 pm

LIR

PDX

21h 05m

2 stops

$479United Airlines

Sat, Oct 31 - Sat, Nov 7

7:03 am - 7:52 pm

PDX

LIR

11h 49m

1 stop

9:16 am - 8:35 pm

LIR

PDX

12h 19m

1 stop

$480Alaska Airlines

Fri, Sep 18 - Thu, Oct 15

11:08 pm - 1:47 pm

PDX

LIR

13h 39m

2 stops

2:47 pm - 10:55 am

LIR

PDX

21h 08m

2 stops

$485American Airlines

Fri, Sep 11 - Tue, Sep 15

10:33 am - 7:52 pm

PDX

LIR

32h 19m

1 stop

9:16 am - 8:35 pm

LIR

PDX

12h 19m

1 stop

$489Alaska Airlines

Thu, Sep 17 - Tue, Oct 13

3:27 pm - 12:10 pm

PDX

LIR

19h 43m

2 stops

1:20 pm - 11:15 pm

LIR

PDX

10h 55m

1 stop

$494United Airlines

Fri, Sep 11 - Sun, Sep 13

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American Airlines flights from Portland to Costa Rica

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

American Airlines

Jan 3

PDX10:55 pmPortland

13h 18m

2 stops

LIR2:13 pmLiberia

Jan 13

LIR3:13 pmLiberia

22h 32m

2 stops

PDX11:45 amPortland

$471

American Airlines

Sep 11

PDX11:08 pmPortland

13h 39m

2 stops

LIR1:47 pmLiberia

Sep 15

LIR2:47 pmLiberia

21h 08m

2 stops

PDX10:55 amPortland

$485

American Airlines

Oct 7

PDX6:00 pmPortland

18h 43m

2 stops

LIR1:43 pmLiberia

Oct 22

LIR2:18 pmLiberia

10h 21m

1 stop

PDX11:39 pmPortland

$490

United Airlines flights from Portland to Costa Rica

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

United Airlines

Sep 11

PDX3:27 pmPortland

19h 43m

2 stops

LIR12:10 pmLiberia

Sep 13

LIR1:20 pmLiberia

10h 55m

1 stop

PDX11:15 pmPortland

$494

United Airlines

Sep 25

PDX11:30 pmPortland

11h 23m

1 stop

LIR11:53 amLiberia

Oct 5

LIR1:20 pmLiberia

21h 07m

2 stops

PDX9:27 amPortland

$499

United Airlines

Sep 11

PDX1:00 pmPortland

22h 10m

1 stop

LIR12:10 pmLiberia

Sep 13

LIR1:20 pmLiberia

10h 55m

1 stop

PDX11:15 pmPortland

$507

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PortlandSan José

PDX - SJO

PDXSJO

Portland

Tue 9/1

7:03 am-11:15 pm

2 stops15h 12m

San José Juan Santamaria Intl

Tue 9/15

5:45 am-8:36 pm

2 stops15h 51m

$414

PortlandSan José

PDX - SJO

PDXSJO

Portland

Mon 11/9

6:47 am-11:15 pm

2 stops14h 28m

San José Juan Santamaria Intl

Mon 12/14

5:45 am-11:54 pm

2 stops20h 09m

$416

PortlandSan José

PDX - SJO

PDXSJO

Portland

Tue 9/1

7:03 am-11:15 pm

2 stops15h 12m

San José Juan Santamaria Intl

Mon 9/14

9:40 am-9:25 am

2 stops24h 45m

$417

PortlandSan José

PDX - SJO

PDXSJO

Portland

Sat 8/15

7:20 am-11:15 pm

2 stops14h 55m

San José Juan Santamaria Intl

Sat 8/22

7:45 pm-10:50 am

3 stops16h 05m

$418

PortlandLiberia

PDX - LIR

PDXLIR

Portland

Sun 1/3

10:55 pm-2:13 pm

2 stops13h 18m

Liberia

Wed 1/13

3:13 pm-11:45 am

2 stops22h 32m

$471

PortlandLiberia

PDX - LIR

PDXLIR

Portland

Sat 10/31

5:00 am-3:10 pm

1 stop9h 10m

Liberia

Sat 11/7

4:56 pm-12:01 pm

2 stops21h 05m

$479

Quickest round-trip

PortlandLiberia

PDX - LIR

PDXLIR

Portland

Fri 9/18

7:03 am-7:52 pm

1 stop11h 49m

Liberia

Thu 10/15

9:16 am-8:35 pm

1 stop12h 19m

$480

PortlandLiberia

PDX - LIR

PDXLIR

Portland

Fri 9/11

11:08 pm-1:47 pm

2 stops13h 39m

Liberia

Tue 9/15

2:47 pm-10:55 am

2 stops21h 08m

$485

PortlandLiberia

PDX - LIR

PDXLIR

Portland

Thu 9/17

10:33 am-7:52 pm

1 stop32h 19m

Liberia

Tue 10/13

9:16 am-8:35 pm

1 stop12h 19m

$489

PortlandLiberia

PDX - LIR

PDXLIR

Portland

Fri 9/11

3:27 pm-12:10 pm

2 stops19h 43m

Liberia

Sun 9/13

1:20 pm-11:15 pm

1 stop10h 55m

$494

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 $410, 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 October is your next best option. Flight prices from Portland to Costa Rica during October average around $423.

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 $535 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 $399 on momondo.

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

You could potentially save up to 19% 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 53m
Direct flights	None

The fastest flight from Portland to Costa Rica takes 8h 53m

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 July 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 11,828 reviews	Search American Airlines flights
United Airlines	PriceFrom $275	Free Cancellation	Rating 7.4 10,009 reviews	Search United Airlines flights
Delta	PriceFrom $287	Free Cancellation	Rating 7.8 8,486 reviews	Search Delta flights
Alaska Airlines	PriceFrom $295	Free Cancellation	Rating 7.9 12,675 reviews	Search Alaska Airlines flights
Southwest	PriceFrom $492	Free Cancellation	Rating 8.0 4,242 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

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Flights to San Joséfrom $200

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Cheap flights from Portland to Costa Rica from $198

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 10/24. 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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United Airlines flights from Portland to Costa Rica

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

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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

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

Popular flights according to clicks in the last 7 days on momondo

Portland flight routes

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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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