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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 1/24. 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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0 bags

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Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
7:00 am - 6:16 pmPDX-SJO
9h 16m1 stop
United Airlines Logo
9:40 am - 11:06 pmSJO-PDX
15h 26m1 stop
$276United Airlines
Find Deal
Mon, Jan 19 - Fri, Jan 30
American Airlines Logo
10:15 pm - 12:38 pmPDX-SJO
12h 23m1 stop
American Airlines Logo
6:38 am - 9:21 pmSJO-PDX
16h 43m2 stops
$280American Airlines
Find Deal
Mon, Jan 19 - Fri, Jan 30
American Airlines Logo
6:00 am - 11:43 pmPDX-SJO
15h 43m1 stop
American Airlines Logo
6:38 am - 11:32 pmSJO-PDX
18h 54m1 stop
$281American Airlines
Find Deal
Sun, Feb 1 - Sun, Feb 8
American Airlines Logo
8:29 am - 11:43 pmPDX-SJO
13h 14m2 stops
American Airlines Logo
6:38 am - 10:11 pmSJO-PDX
17h 33m1 stop
$285American Airlines
Find Deal
Sun, Feb 1 - Sun, Feb 8
American Airlines Logo
5:25 am - 10:30 pmPDX-SJO
15h 05m2 stops
American Airlines Logo
6:00 am - 6:51 pmSJO-PDX
14h 51m2 stops
$293American Airlines
Find Deal
Tue, Jan 13 - Wed, Jan 21
United Airlines Logo
3:54 pm - 8:32 amPDX-SJO
14h 38m1 stop
United Airlines Logo
2:20 pm - 10:45 pmSJO-PDX
10h 25m1 stop
$306United Airlines
Find Deal
Wed, Nov 12 - Sat, Nov 15
Delta Logo
10:45 am - 7:00 amPDX-SJO
18h 15m1 stop
Delta Logo
7:00 am - 10:19 pmSJO-PDX
17h 19m1 stop
$316Delta
Find Deal
Fri, Dec 5 - Fri, Dec 12
Delta Logo
7:30 pm - 10:20 pmPDX-SJO
24h 50m2 stops
Delta Logo
7:00 am - 9:10 amSJO-PDX
28h 10m2 stops
$320Delta
Find Deal
Sun, Dec 7 - Mon, Dec 15
Alaska Airlines Logo
10:30 am - 12:38 amPDX-SJO
12h 08m1 stop
Alaska Airlines Logo
1:55 am - 10:34 pmSJO-PDX
22h 39m1 stop
$323Alaska Airlines
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Tue, Nov 11 - Fri, Nov 14
Alaska Airlines Logo
7:24 am - 6:01 pmPDX-LIR
8h 37m1 stop
Alaska Airlines Logo
11:20 am - 8:34 pmLIR-PDX
11h 14m1 stop
$337Alaska Airlines
Find Deal
Wed, Jan 28 - Tue, Feb 10

United Airlines flights from Portland to Costa Rica

Our best United Airlines deals on Portland to Costa Rica flight tickets
United Airlines
Jan 19
PDX7:00 amPortland
9h 16m
1 stop
SJO6:16 pmSan José Juan Santamaria Intl
Jan 30
SJO9:40 amSan José Juan Santamaria Intl
15h 26m
1 stop
PDX11:06 pmPortland
$276
Find similar
United Airlines
Nov 12
PDX3:54 pmPortland
14h 38m
1 stop
SJO8:32 amSan José Juan Santamaria Intl
Nov 15
SJO2:20 pmSan José Juan Santamaria Intl
10h 25m
1 stop
PDX10:45 pmPortland
$306
Find similar
United Airlines
Feb 5
PDX7:00 amPortland
9h 16m
1 stop
SJO6:16 pmSan José Juan Santamaria Intl
Feb 13
SJO8:45 amSan José Juan Santamaria Intl
16h 14m
2 stops
PDX10:59 pmPortland
$310
Find similar

Delta flights from Portland to Costa Rica

Our best Delta deals on Portland to Costa Rica flight tickets
Delta
Dec 5
PDX10:45 amPortland
18h 15m
1 stop
SJO7:00 amSan José Juan Santamaria Intl
Dec 12
SJO7:00 amSan José Juan Santamaria Intl
17h 19m
1 stop
PDX10:19 pmPortland
$316
Find similar
Delta
Dec 7
PDX7:30 pmPortland
24h 50m
2 stops
SJO10:20 pmSan José Juan Santamaria Intl
Dec 15
SJO7:00 amSan José Juan Santamaria Intl
28h 10m
2 stops
PDX9:10 amPortland
$320
Find similar
Delta
Nov 18
PDX12:35 amPortland
19h 32m
2 stops
SJO10:07 pmSan José Juan Santamaria Intl
Nov 23
SJO7:00 amSan José Juan Santamaria Intl
30h 46m
2 stops
PDX11:46 amPortland
$355
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 October 30, 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

7:00 am-6:16 pm

1 stop9h 16m

San José Juan Santamaria Intl

Fri 1/30

9:40 am-11:06 pm

1 stop15h 26m

$276

PortlandSan José

PDX - SJO

PDXSJO

Portland

Mon 1/19

10:15 pm-12:38 pm

1 stop12h 23m

San José Juan Santamaria Intl

Fri 1/30

6:38 am-9:21 pm

2 stops16h 43m

$280

PortlandSan José

PDX - SJO

PDXSJO

Portland

Sun 2/1

6:00 am-11:43 pm

1 stop15h 43m

San José Juan Santamaria Intl

Sun 2/8

6:38 am-11:32 pm

1 stop18h 54m

$281

PortlandSan José

PDX - SJO

PDXSJO

Portland

Sun 2/1

8:29 am-11:43 pm

2 stops13h 14m

San José Juan Santamaria Intl

Sun 2/8

6:38 am-10:11 pm

1 stop17h 33m

$285

PortlandSan José

PDX - SJO

PDXSJO

Portland

Tue 1/13

5:25 am-10:30 pm

2 stops15h 05m

San José Juan Santamaria Intl

Wed 1/21

6:00 am-6:51 pm

2 stops14h 51m

$293

PortlandSan José

PDX - SJO

PDXSJO

Portland

Wed 11/12

3:54 pm-8:32 am

1 stop14h 38m

San José Juan Santamaria Intl

Sat 11/15

2:20 pm-10:45 pm

1 stop10h 25m

$306

PortlandSan José

PDX - SJO

PDXSJO

Portland

Fri 12/5

10:45 am-7:00 am

1 stop18h 15m

San José Juan Santamaria Intl

Fri 12/12

7:00 am-10:19 pm

1 stop17h 19m

$316

PortlandSan José

PDX - SJO

PDXSJO

Portland

Sun 12/7

7:30 pm-10:20 pm

2 stops24h 50m

San José Juan Santamaria Intl

Mon 12/15

7:00 am-9:10 am

2 stops28h 10m

$320

PortlandSan José

PDX - SJO

PDXSJO

Portland

Tue 11/11

10:30 am-12:38 am

1 stop12h 08m

San José Juan Santamaria Intl

Fri 11/14

1:55 am-10:34 pm

1 stop22h 39m

$323

PortlandLiberia

PDX - LIR

PDXLIR

Portland

Wed 1/28

7:24 am-6:01 pm

1 stop8h 37m

Liberia

Tue 2/10

11:20 am-8:34 pm

1 stop11h 14m

$337

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 $361, 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 $426.

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 $596 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 $516 on momondo.

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

You could potentially save up to 28% 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

Direct flights

None
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
8,115 reviews
Search Spirit Airlines flights
United AirlinesPriceFrom $290Free CancellationRating
7.4
8,996 reviews
Search United Airlines flights
American AirlinesPriceFrom $331Free CancellationRating
7.2
11,034 reviews
Search American Airlines flights
Alaska AirlinesPriceFrom $345Free CancellationRating
8.0
11,220 reviews
Search Alaska Airlines flights
DeltaPriceFrom $365Free CancellationRating
7.9
7,999 reviews
Search Delta flights
SouthwestPriceFrom $502Free CancellationRating
8.0
4,243 reviews
Search Southwest flights
Copa AirlinesPriceFrom $775Free CancellationRating
7.6
1,561 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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