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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 8/22. 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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Cheap round-trip flights

United Airlines Logo
7:35 pm - 7:15 amPDX-SJO
10h 40m1 stop
United Airlines Logo
8:37 am - 10:45 pmSJO-PDX
15h 08m1 stop
$276United Airlines
Find Deal
Wed, Oct 1 - Fri, Oct 10
United Airlines Logo
7:04 am - 7:37 pmPDX-SJO
11h 33m1 stop
United Airlines Logo
1:30 pm - 12:45 amSJO-PDX
12h 15m2 stops
$280United Airlines
Find Deal
Tue, Sep 9 - Tue, Sep 16
American Airlines Logo
11:58 pm - 10:01 pmPDX-SJO
21h 03m1 stop
American Airlines Logo
6:00 am - 8:18 pmSJO-PDX
16h 18m2 stops
$287American Airlines
Find Deal
Sat, Nov 1 - Wed, Nov 12
Alaska Airlines Logo
7:30 am - 11:00 pmPDX-SJO
13h 30m1 stop
Alaska Airlines Logo
2:26 am - 4:28 pmSJO-PDX
16h 02m1 stop
$296Alaska Airlines
Find Deal
Thu, Jan 22 - Wed, Jan 28
Alaska Airlines Logo
2:50 pm - 12:38 amPDX-SJO
32h 48m1 stop
Alaska Airlines Logo
1:58 am - 8:50 pmSJO-PDX
20h 52m1 stop
$302Alaska Airlines
Find Deal
Sat, Nov 1 - Tue, Nov 11
Delta Logo
6:04 am - 10:15 pmPDX-SJO
14h 11m1 stop
Delta Logo
7:00 am - 7:18 pmSJO-PDX
14h 18m1 stop
$316Delta
Find Deal
Mon, Jan 19 - Thu, Jan 29
Delta Logo
6:04 am - 10:15 pmPDX-SJO
14h 11m1 stop
Delta Logo
7:00 am - 10:22 pmSJO-PDX
17h 22m2 stops
$320Delta
Find Deal
Mon, Jan 19 - Thu, Jan 29
Spirit Airlines Logo
12:07 pm - 11:14 amPDX-SJO
22h 07m2 stops
Spirit Airlines Logo
12:19 pm - 7:23 pmSJO-PDX
32h 04m3 stops
$337Spirit Airlines
Find Deal
Tue, Sep 9 - Tue, Sep 16
American Airlines Logo
10:45 pm - 12:16 pmPDX-LIR
11h 31m1 stop
American Airlines Logo
3:08 pm - 10:58 amLIR-PDX
21h 50m2 stops
$349American Airlines
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Tue, Nov 11 - Tue, Nov 18
Spirit Airlines Logo
12:07 pm - 10:27 amPDX-SJO
21h 20m3 stops
Spirit Airlines Logo
12:19 pm - 7:23 pmSJO-PDX
32h 04m3 stops
$382Spirit Airlines
Find Deal
Tue, Sep 9 - Tue, Sep 16

Alaska Airlines flights from Portland to Costa Rica

Our best Alaska Airlines deals on Portland to Costa Rica flight tickets
Alaska Airlines
Jan 22
PDX7:30 amPortland
13h 30m
1 stop
SJO11:00 pmSan José Juan Santamaria Intl
Jan 28
SJO2:26 amSan José Juan Santamaria Intl
16h 02m
1 stop
PDX4:28 pmPortland
$296
Find similar
Alaska Airlines
Nov 1
PDX2:50 pmPortland
32h 48m
1 stop
SJO12:38 amSan José Juan Santamaria Intl
Nov 11
SJO1:58 amSan José Juan Santamaria Intl
20h 52m
1 stop
PDX8:50 pmPortland
$302
Find similar
Alaska Airlines
Jan 22
PDX10:35 amPortland
10h 25m
1 stop
SJO11:00 pmSan José Juan Santamaria Intl
Jan 28
SJO2:26 amSan José Juan Santamaria Intl
12h 55m
1 stop
PDX1:21 pmPortland
$306
Find similar

United Airlines flights from Portland to Costa Rica

Our best United Airlines deals on Portland to Costa Rica flight tickets
United Airlines
Oct 1
PDX7:35 pmPortland
10h 40m
1 stop
SJO7:15 amSan José Juan Santamaria Intl
Oct 10
SJO8:37 amSan José Juan Santamaria Intl
15h 08m
1 stop
PDX10:45 pmPortland
$276
Find similar
United Airlines
Sep 9
PDX7:04 amPortland
11h 33m
1 stop
SJO7:37 pmSan José Juan Santamaria Intl
Sep 16
SJO1:30 pmSan José Juan Santamaria Intl
12h 15m
2 stops
PDX12:45 amPortland
$280
Find similar
United Airlines
Sep 9
PDX5:00 amPortland
13h 37m
2 stops
SJO7:37 pmSan José Juan Santamaria Intl
Sep 16
SJO1:30 pmSan José Juan Santamaria Intl
12h 15m
2 stops
PDX12:45 amPortland
$288
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 August 1, 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

Wed 10/1

7:35 pm-7:15 am

1 stop10h 40m

San José Juan Santamaria Intl

Fri 10/10

8:37 am-10:45 pm

1 stop15h 08m

$276

PortlandSan José

PDX - SJO

PDXSJO

Portland

Tue 9/9

7:04 am-7:37 pm

1 stop11h 33m

San José Juan Santamaria Intl

Tue 9/16

1:30 pm-12:45 am

2 stops12h 15m

$280

PortlandSan José

PDX - SJO

PDXSJO

Portland

Sat 11/1

11:58 pm-10:01 pm

1 stop21h 03m

San José Juan Santamaria Intl

Wed 11/12

6:00 am-8:18 pm

2 stops16h 18m

$287

PortlandSan José

PDX - SJO

PDXSJO

Portland

Thu 1/22

7:30 am-11:00 pm

1 stop13h 30m

San José Juan Santamaria Intl

Wed 1/28

2:26 am-4:28 pm

1 stop16h 02m

$296

PortlandSan José

PDX - SJO

PDXSJO

Portland

Sat 11/1

2:50 pm-12:38 am

1 stop32h 48m

San José Juan Santamaria Intl

Tue 11/11

1:58 am-8:50 pm

1 stop20h 52m

$302

PortlandSan José

PDX - SJO

PDXSJO

Portland

Mon 1/19

6:04 am-10:15 pm

1 stop14h 11m

San José Juan Santamaria Intl

Thu 1/29

7:00 am-7:18 pm

1 stop14h 18m

$316

PortlandSan José

PDX - SJO

PDXSJO

Portland

Mon 1/19

6:04 am-10:15 pm

1 stop14h 11m

San José Juan Santamaria Intl

Thu 1/29

7:00 am-10:22 pm

2 stops17h 22m

$320

PortlandSan José

PDX - SJO

PDXSJO

Portland

Tue 9/9

12:07 pm-11:14 am

2 stops22h 07m

San José Juan Santamaria Intl

Tue 9/16

12:19 pm-7:23 pm

3 stops32h 04m

$337

PortlandLiberia

PDX - LIR

PDXLIR

Portland

Tue 11/11

10:45 pm-12:16 pm

1 stop11h 31m

Liberia

Tue 11/18

3:08 pm-10:58 am

2 stops21h 50m

$349

PortlandSan José

PDX - SJO

PDXSJO

Portland

Tue 9/9

12:07 pm-10:27 am

3 stops21h 20m

San José Juan Santamaria Intl

Tue 9/16

12:19 pm-7:23 pm

3 stops32h 04m

$382

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 $540, 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 $540.

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 $644 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 $583 on momondo.

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

Best Price Found

$122

Fastest flight time

8h 45m

Direct flights

None

Airports in Costa Rica

2 airports
The best one-way flight to Costa Rica from Portland in the past 72 hours is $122. The best round-trip flight deal from Portland to Costa Rica found on momondo in the last 72 hours is $276.
The fastest flight from Portland to Costa Rica takes 8h 45m
There are no direct flights from Portland to Costa Rica. Popular non-direct routes for this connection are Portland Airport - Liberia Airport and Portland Airport - San José Juan Santamaria Intl Airport.
There are 2 airports near Costa Rica: Liberia (LIR), San José Juan Santamaria Intl (SJO)
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  • 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
8,048 reviews
Search Spirit Airlines flights
United AirlinesPriceFrom $359Free CancellationRating
7.4
8,900 reviews
Search United Airlines flights
Alaska AirlinesPriceFrom $384Free CancellationRating
8.0
10,000 reviews
Search Alaska Airlines flights
DeltaPriceFrom $390Free CancellationRating
8.0
7,981 reviews
Search Delta flights
American AirlinesPriceFrom $409Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
SouthwestPriceFrom $484Free CancellationRating
8.0
4,246 reviews
Search Southwest flights
Copa AirlinesPriceFrom $775Free CancellationRating
7.5
1,493 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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