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Cheap flights from Portland to Costa Rica from $122

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 2/16. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
6:00 am - 10:30 pm
PDX
-
SJO
14h 30m1 stop
American Airlines Logo
7:09 am - 8:27 pm
SJO
-
PDX
15h 18m1 stop
$276American Airlines
Mon, Jan 19 - Fri, Jan 30
American Airlines Logo
6:00 am - 10:30 pm
PDX
-
SJO
14h 30m1 stop
American Airlines Logo
8:00 am - 8:22 pm
SJO
-
PDX
14h 22m2 stops
$280American Airlines
Mon, Jan 26 - Thu, Feb 5
American Airlines Logo
6:00 am - 10:30 pm
PDX
-
SJO
14h 30m1 stop
American Airlines Logo
7:09 am - 8:27 pm
SJO
-
PDX
15h 18m1 stop
$281American Airlines
Thu, Jan 22 - Wed, Feb 4
United Airlines Logo
7:00 am - 6:16 pm
PDX
-
SJO
9h 16m1 stop
United Airlines Logo
9:40 am - 12:31 am
SJO
-
PDX
16h 51m1 stop
$301United Airlines
Mon, Jan 26 - Tue, Feb 3
Multiple Airlines Logo
7:00 am - 3:30 pm
PDX
-
SJO
30h 30m1 stop
Multiple Airlines Logo
7:45 am - 8:44 pm
SJO
-
PDX
14h 59m1 stop
$308Multiple Airlines
Mon, Feb 9 - Mon, Feb 16
Multiple Airlines Logo
7:16 am - 11:15 pm
PDX
-
SJO
13h 59m2 stops
Multiple Airlines Logo
7:45 am - 8:44 pm
SJO
-
PDX
14h 59m1 stop
$309Multiple Airlines
Thu, Feb 19 - Thu, Mar 5
Delta Logo
5:25 pm - 1:50 pm
PDX
-
LIR
18h 25m2 stops
Delta Logo
2:05 pm - 9:25 am
LIR
-
PDX
21h 20m2 stops
$349Delta
Sun, Feb 1 - Wed, Feb 11
United Airlines Logo
7:00 am - 6:37 pm
PDX
-
LIR
9h 37m1 stop
United Airlines Logo
8:35 am - 10:53 pm
LIR
-
PDX
16h 18m1 stop
$358United Airlines
Mon, Jan 5 - Tue, Jan 13
Delta Logo
7:50 pm - 12:50 pm
PDX
-
LIR
15h 00m2 stops
Delta Logo
3:05 pm - 12:02 pm
LIR
-
PDX
22h 57m2 stops
$363Delta
Mon, Feb 16 - Mon, Feb 23
Alaska Airlines Logo
2:30 pm - 6:45 am
PDX
-
LIR
14h 15m1 stop
Alaska Airlines Logo
6:12 pm - 10:56 am
LIR
-
PDX
18h 44m1 stop
$373Alaska Airlines
Sat, Feb 21 - Sat, Feb 28

United Airlines flights from Portland to Costa Rica

Our best United Airlines deals on Portland to Costa Rica flight tickets
United Airlines
Jan 26
PDX7:00 amPortland
9h 16m
1 stop
SJO6:16 pmSan José Juan Santamaria Intl
Feb 3
SJO9:40 amSan José Juan Santamaria Intl
16h 51m
1 stop
PDX12:31 amPortland
$301
Find similar
United Airlines
Jan 7
PDX1:35 pmPortland
16h 57m
1 stop
SJO8:32 amSan José Juan Santamaria Intl
Mar 14
SJO8:40 amSan José Juan Santamaria Intl
15h 29m
1 stop
PDX11:09 pmPortland
$313
Find similar
United Airlines
Jan 19
PDX7:00 amPortland
9h 16m
1 stop
SJO6:16 pmSan José Juan Santamaria Intl
Jan 29
SJO8:45 amSan José Juan Santamaria Intl
16h 21m
2 stops
PDX11:06 pmPortland
$316
Find similar

American Airlines flights from Portland to Costa Rica

Our best American Airlines deals on Portland to Costa Rica flight tickets
American Airlines
Jan 19
PDX6:00 amPortland
14h 30m
1 stop
SJO10:30 pmSan José Juan Santamaria Intl
Jan 30
SJO7:09 amSan José Juan Santamaria Intl
15h 18m
1 stop
PDX8:27 pmPortland
$276
Find similar
American Airlines
Jan 26
PDX6:00 amPortland
14h 30m
1 stop
SJO10:30 pmSan José Juan Santamaria Intl
Feb 5
SJO8:00 amSan José Juan Santamaria Intl
14h 22m
2 stops
PDX8:22 pmPortland
$280
Find similar
American Airlines
Jan 22
PDX6:00 amPortland
14h 30m
1 stop
SJO10:30 pmSan José Juan Santamaria Intl
Feb 4
SJO7:09 amSan José Juan Santamaria Intl
15h 18m
1 stop
PDX8:27 pmPortland
$281
Find similar

momondo 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, momondo users made 832,500 searches. Data last updated December 18, 2025.
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

PortlandSan José

PDX - SJO

PDXSJO

Portland

Mon 1/19

6:00 am-10:30 pm

1 stop14h 30m

San José Juan Santamaria Intl

Fri 1/30

7:09 am-8:27 pm

1 stop15h 18m

$276

PortlandSan José

PDX - SJO

PDXSJO

Portland

Mon 1/26

6:00 am-10:30 pm

1 stop14h 30m

San José Juan Santamaria Intl

Thu 2/5

8:00 am-8:22 pm

2 stops14h 22m

$280

PortlandSan José

PDX - SJO

PDXSJO

Portland

Thu 1/22

6:00 am-10:30 pm

1 stop14h 30m

San José Juan Santamaria Intl

Wed 2/4

7:09 am-8:27 pm

1 stop15h 18m

$281

PortlandSan José

PDX - SJO

PDXSJO

Portland

Mon 1/26

7:00 am-6:16 pm

1 stop9h 16m

San José Juan Santamaria Intl

Tue 2/3

9:40 am-12:31 am

1 stop16h 51m

$301

PortlandSan José

PDX - SJO

PDXSJO

Portland

Mon 2/9

7:00 am-3:30 pm

1 stop30h 30m

San José Juan Santamaria Intl

Mon 2/16

7:45 am-8:44 pm

1 stop14h 59m

$308

PortlandSan José

PDX - SJO

PDXSJO

Portland

Thu 2/19

7:16 am-11:15 pm

2 stops13h 59m

San José Juan Santamaria Intl

Thu 3/5

7:45 am-8:44 pm

1 stop14h 59m

$309

PortlandLiberia

PDX - LIR

PDXLIR

Portland

Sun 2/1

5:25 pm-1:50 pm

2 stops18h 25m

Liberia

Wed 2/11

2:05 pm-9:25 am

2 stops21h 20m

$349

PortlandLiberia

PDX - LIR

PDXLIR

Portland

Mon 1/5

7:00 am-6:37 pm

1 stop9h 37m

Liberia

Tue 1/13

8:35 am-10:53 pm

1 stop16h 18m

$358

PortlandLiberia

PDX - LIR

PDXLIR

Portland

Mon 2/16

7:50 pm-12:50 pm

2 stops15h 00m

Liberia

Mon 2/23

3:05 pm-12:02 pm

2 stops22h 57m

$363

PortlandLiberia

PDX - LIR

PDXLIR

Portland

Sat 2/21

2:30 pm-6:45 am

1 stop14h 15m

Liberia

Sat 2/28

6:12 pm-10:56 am

1 stop18h 44m

$373

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Costa Rica from

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

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 $357, 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 $407.

What is the cheapest day to depart on your flight to Costa Rica?

According to our data, Tuesday is the cheapest day to fly to Costa Rica from Portland. The lowest ticket price found for a Tuesday departure recently was $568. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. If your travel schedule is flexible, try to avoid departing on a Friday because tickets tend to average around $746. These prices are subject to change though, so be sure to set up a Price Alert for flights to Costa Rica.

What is the cheapest time of day to depart on your flight to Costa Rica?

In the afternoon is the cheapest time of day to fly from Portland to Costa Rica when you can find flight prices for as low as $605. Flying to Costa Rica in the afternoon is an ideal time because this is during off-peak travel hours. Flights to Costa Rica are more costly in the morning, with an average ticket price of $688. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

How far in advance should I book a flight 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 $568 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 $502 on momondo.

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

You could potentially save up to 37% 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 57m

Direct flights

None
The fastest flight from Portland to Costa Rica takes 8h 57m
There are no direct flights from Portland to Costa Rica. There are no popular flight routes from Portland to Costa Rica.
Search flight deals

  • 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?

  • 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
Spirit AirlinesPriceFrom $204Free CancellationRating
6.3
8,190 reviews
Search Spirit Airlines flights
United AirlinesPriceFrom $275Free CancellationRating
7.4
9,091 reviews
Search United Airlines flights
American AirlinesPriceFrom $277Free CancellationRating
7.2
11,054 reviews
Search American Airlines flights
Alaska AirlinesPriceFrom $342Free CancellationRating
8.0
11,477 reviews
Search Alaska Airlines flights
DeltaPriceFrom $350Free CancellationRating
7.9
8,005 reviews
Search Delta flights
SouthwestPriceFrom $541Free CancellationRating
7.9
4,250 reviews
Search Southwest flights
Copa AirlinesPriceFrom $775Free CancellationRating
7.6
1,556 reviews
Search Copa Airlines 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.

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