$199 Find Cheap Flights from Portland to Costa Rica - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Portland to Costa Rica departing on 8/4. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
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Cheap Flights from Portland to Costa Rica

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
San José
San José2 stops$405
Liberia
Liberia2 stops$451
San José
San José2 stops$405
Liberia
Liberia2 stops$451

Book Cheap Portland to Costa Rica Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Portland to Costa Rica that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Portland to Costa Rica

Tue, Aug 18 - Tue, Aug 25
Multiple Airlines Logo
7:00 am - 11:15 pm
PDX
-
SJO
15h 15m
2 stops
Multiple Airlines Logo
5:45 am - 8:50 pm
SJO
-
PDX
16h 05m
2 stops
$405Multiple Airlines
Tue, Oct 27 - Tue, Nov 3
Multiple Airlines Logo
7:03 am - 11:15 pm
PDX
-
SJO
15h 12m
2 stops
Multiple Airlines Logo
5:45 am - 11:10 pm
SJO
-
PDX
19h 25m
2 stops
$416Multiple Airlines
Thu, Aug 6 - Fri, Aug 14
Multiple Airlines Logo
7:00 am - 11:15 pm
PDX
-
SJO
15h 15m
2 stops
Multiple Airlines Logo
5:05 am - 4:47 pm
SJO
-
PDX
12h 42m
2 stops
$418Multiple Airlines
Thu, Aug 20 - Wed, Aug 26
Multiple Airlines Logo
7:03 am - 11:15 pm
PDX
-
SJO
15h 12m
2 stops
Multiple Airlines Logo
9:40 am - 9:25 am
SJO
-
PDX
24h 45m
2 stops
$419Multiple Airlines
Sat, Aug 29 - Sun, Sep 6
Multiple Airlines Logo
7:03 am - 11:15 pm
PDX
-
SJO
15h 12m
2 stops
Multiple Airlines Logo
12:40 pm - 9:25 am
SJO
-
PDX
21h 45m
3 stops
$420Multiple Airlines
Sat, Sep 19 - Fri, Sep 25
American Airlines Logo
11:08 pm - 1:18 pm
PDX
-
LIR
13h 10m
2 stops
American Airlines Logo
2:18 pm - 1:35 pm
LIR
-
PDX
24h 17m
2 stops
$451American Airlines
Thu, Jul 9 - Fri, Jul 17
United Airlines Logo
5:00 am - 3:19 pm
PDX
-
LIR
9h 19m
1 stop
United Airlines Logo
11:49 am - 11:13 pm
LIR
-
PDX
12h 24m
1 stop
$460United Airlines
Sun, Sep 6 - Fri, Sep 11
United Airlines Logo
4:09 pm - 12:10 pm
PDX
-
LIR
19h 01m
2 stops
United Airlines Logo
1:20 pm - 12:34 am
LIR
-
PDX
12h 14m
2 stops
$465United Airlines
Sat, Sep 19 - Fri, Sep 25
American Airlines Logo
2:07 pm - 1:47 pm
PDX
-
LIR
22h 40m
1 stop
American Airlines Logo
2:18 pm - 10:59 am
LIR
-
PDX
21h 41m
1 stop
$468American Airlines
Sat, Dec 5 - Mon, Dec 14
Alaska Airlines Logo
5:40 pm - 6:20 am
PDX
-
LIR
10h 40m
1 stop
Alaska Airlines Logo
10:00 am - 11:54 pm
LIR
-
PDX
15h 54m
1 stop
$474Alaska Airlines
Booking Insights

KAYAK's insights & trends for Portland to Costa Rica flights

Get data-powered insights and trends into flights from Portland to Costa Rica to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from Portland to Costa Rica?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Portland to Costa Rica, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Portland to Costa Rica is April, when tickets cost $157 (return) on average. On the other hand, the most expensive months are May and July, when the average cost of round-trip tickets is $309 and $298 respectively.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Portland to Costa Rica, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Portland to Costa Rica, you should book around 2 weeks before departure, which saves you about 18% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 5 weeks before departure.

Good to know

Low seasonSeptember
Cheapest flight$199
Best time to beat the crowds with an average 25% drop in price.
Most popular time to fly and prices are also 18% lower on average.
Flight from Portland to San José

FAQs - booking Costa Rica flights

  • Are there any shops or stores available at the SJO airport?

    At IMAS Duty Free, you can get a variety of goods ranging from luxury goods and electronics, chocolate, coffee, liquor, perfumes etc. They are located before the airport security at the administrative offices.

  • Is medical assistance available at the Limon Airport (LIO)?

    You can request medical assistance at the Limon Airport from any of the staff members who will guide you to the appropriate area. Air Ambulance also provides a variety of services at the airport.

  • Are pets allowed at the PDX airport?

    Animals such as those for comfort or emotional support are allowed at the PDX airport on conditions that they be accompanied by and or be kept in pet carriers except when they are using the relief area. If you are traveling with a service dog you should ensure that that dog is always under control.

  • Do they have nursing rooms for lactating mothers?

    If you are traveling with a child who is still breastfeeding, the John Wayne Airport offers nursing rooms to provide mothers with privacy and comfort. The stations have a comfortable chair, a sink for washing your hands, a changing station and electric outlets for mothers who would wish to pump. The rooms are located close to gate C16.

  • How does KAYAK find such low prices on flights from Portland to Costa Rica?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Portland to Costa Rica.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Portland to Costa Rica?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Portland to Costa Rica is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Portland to Costa Rica?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Portland to Costa Rica with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Portland to Costa Rica?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Portland to Costa Rica up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Top tips for finding cheap flights to Costa Rica

  • Portland International Airport (PDX) is situated to the south of Multnomah in Portland. The journey from the city to the airport takes about 45 minutes depending on the method of transportation. You can also use the MAX light rail Red line which takes about 40 minutes between downtown and the airport. Another option is taxi cabs, which are ordered via the operators or from a hotel.
  • Should you require wheelchair assistance at the PDX airport, you are advised to call your airline at least 48 hours in advance. A note indicating that you require special assistance will be put in your reservation record to communicate your arrival, departure and transfer airports to give the required assistance. Clearly marked handicap parking lots are also available, and are located adjacent to the terminal.
  • The kids play area at the PDX airport is situated close to the D and E security checkpoint (pre-security). It has a play structure with climbing stairs, slides, and creative space and Lego tables. The other play area is at Concourse C near gate C17 and offers an airplane themed play area for young children and a TV. Parents and guardians have seats nearby where they can take a rest and keep an eye on their kids.
  • Several lounges are found at the Juan Santa Maria airport (SJO) - VIP lounge BAC Credomatic, Santa Maria VIP Lounge, MasterCard Black Lounge and VIP Costa Rica (Copa Club).Here you can enjoy amenities such as snacks, premium food, beer and wine, flight monitors, TV, newspapers, and magazines. It is important to note that the MasterCard lounge is only accessible to MasterCard Black cardholders issued in Central America. They operate between 4:00 a.m. and 8:00 p.m.
  • Should you want to stay at a hotel after your flight, a number of them are located near the Liberia Airport (LIR). Hotel Javy offers amenities such as free parking, free breakfast, and a taxi service. The rooms are equipped with air conditioning, telephone, flat screen TV, and housekeeping among others. There are also family rooms and non-smoking rooms. Other hotels that you may also find interesting include Hotel Boyeros, Hospedaje Dodero, and Hotel Villa Hermosa.

Reviews of the top 5 airlines serving from Portland to Costa Rica

 
Need help choosing which airline to fly with from Portland to Costa Rica? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.9
Alaska AirlinesOverall score based on 12573 reviews
7.8Comfort
8.1Boarding
7.0Entertainment
8.5Crew
7.0Food
Airline reviews

The crew was excellent. We brought our own snacks due to dietary requirements and personal preference. There was an ample beverage selection. The seating was comfortable enough. My only complaint was that there was no announcement, or at least none that we could hear, that our connecting flight was departing from a different terminal. That could been announced by the air crew in flight or before disembarking.

8.0 ExcellentPamela, Jun 2026
PDX - SEA
Read more Alaska Airlines reviews

The crew was excellent. We brought our own snacks due to dietary requirements and personal preference. There was an ample beverage selection. The seating was comfortable enough. My only complaint was that there was no announcement, or at least none that we could hear, that our connecting flight was departing from a different terminal. That could been announced by the air crew in flight or before disembarking.

Although delayed an hour, the gate attendants kept us notified and the rest of the trip went off with no issues.

We showed up to our gate less than 15 minutes after boarding started and they wouldn’t let us in. It was still 15 minutes even before take off so we’re weren’t even late to the flight.

When I checked in with full service, requesting a wheelchair, as I had asked for ahead of time, the customer service agent said “wait over there, nothing more. I waited in the designated space for about 40 minutes before learning from another passenger that I needed to check in again at a specific assistance desk. I was early, so I made it on time to my flight. Your agent should not assume I knew anything, which I didn’t. This was all new, in a recently remodeled space. New to me, anyway.

Great trip. No complaints. Impressed with the crew’s response to various challenges pre-boarding.

We were 35 minutes late because the caterer had not stocked the plane. Plane was fully loaded and ready to go 15 minutes before departure time. We sat there 35 minutes?

The seats are too small/crowded. It is frustrating to be forced to sit with someone who is overweight as they crown the other seat. Nothing against the person…just the airline companies who continue(over decades!)to reduce seat sizes. Americans are fat. Those of us who are not are tired of being compromised by the airline companies who don’t faces that fact and make adjustments. Maybe have “overweight seats”? Maybe give us a discount for being forced into an uncomfortable flight due to others overweightness? Please, make adjustments…be accountable. Thanks!

I flew standby with my two children and completely forgot it was Memorial Day weekend. We tried to fly from PDX to YVR. Unfortunately, after four attempts, we gave up and tried SEA instead after the holiday. The ground crew was very helpful, checking us in and accommodating us when we were finally able to get on a flight. The sad part was that they accidentally loaded one of my suitcases on the Vancouver flight without us during one of our attempts to get on a flight, even though it had a standby tag on it. I filed a report with baggage services, and thankfully, it was returned to PDX the following day. AS was in touch with us and updated us on the process of returning the luggage to the USA.

Internet was great. It was nice to watch a movie. The crew was very nice.

On this flight there wer only 25 people on board. So no one in 5 rows ahead of me and noone in 7 rows behind me. So very chill.

The flight was late. The crew was rude. There was no food. Cramped and uncomfortable. Nothing about this flight was good.

Crew was rude, flight was late, wifi didn't work, no food, basically nothing about this flight was good.

It was just okay, no frills, basic transportation with no luxury. No screens on the seats, no water or drinks on a short flight. Full flight but at least it was on time.

Flight was constantly delayed with significant changes in time, it was supposed to get to Colorado Springs at 8:30 PM but it got there after midnight.

Over a 3 hour flight. The turbulence was almost imperceptible except for 2 short periods which were not bad and over quickly. The attendants claimed "Safety first" and sat looking at their phones for 3 hours with no drink or snack service. This isn't the first time with Southwest. I thinkit may be there new plan of operation. Oh, and it was June 18, Southwest's Birthday which offered free drinks. NOT.

No gluten free snacks. Seats felt worn or bare bones even though it was a new 737 MAX 8.

The Southwest employees (all two of them) were very nice and cheerful despite the fact the line to self-check a bag (simply drop it off) was hundreds of people long. Thank God I arrived early to the airport because I stood in this line for at least an hour. Once on the flight that had been delayed by an hour, we had no Wi-Fi and thus no entertainment. Finally, I hope the investor strong arm tactics against Southwest pay off in a short-term windfall to your C-Suite because the rest of you are screwed. I have been a faithful Southwest customer for 15 years due to everything you just got rid of. I'm flying to Idaho and Washington in October, both places I used to simply book with Southwest without a second thought now with Frontier (Washington) and United (Idaho) because they offer everything the "new" Southwest does but cheaper and at better times, destinations, etc. This really makes me sad...

It was really nice! I appreciate the gate attendant allowing families with small children to board early on in the process… that was very helpful! The internet service didn’t work with the app I was trying to use even though I paid the $8… other than that it was great! Oh and I should’ve asked for the whole cranberry cocktail can. That cup was about 2 sips…

I liked the boarding process with our loading group and numbers. I disliked that I couldn't guarantee our seats together. I didn't like that the Internet costs $8/ flight, but did love all the inflight options available through their app. I disliked no charging station at my seat for a 3+ hour flight.

Great! Although the flight was about 40 minutes delayed, the crew did a good job getting everything boarded quickly and efficiently.

Bus to plane was delayed for no apparent reason and our luggage was still on the belt when they shut it off. Took about 20 minutes to turn it back on to get our luggage.

I haven’t flown economy in over 20 years but it was not bad. Room by my feet for my bag and seat was roomy enough. Surprised in a good way.

Second flight in a row where the entertainment system is broken. 5 hour long flight with no entertainment and flight attendants did not seem interested in resolving the matter. Very shocked to be treated this poorly considering I paid for a first class experience and have Diamond Medallion status.

The service from the flight attendants were of supreme quality. They greeted and treated everyone with a wide smile. This is totally absent nowadays. Kudos to them!!!!

Easiest airport experience ever in my life at MSP with Delta check-in and flight attendant gave us a bottle of champagne in celebration of our 10-year wedding anniversary, so overall amazing!

Great. Seamless. Check in agent at kiosk international was amazing and extremely helpful.

My seat had no padding, it was literally plywood with a plastic cover. I could not change seats on my 10 hour flight. My excitement for this trip helped me deal with the pain.

The flight was great. The crew were a little terse about the size of my bag. It fit fine.

The flights were on time- Great service Would have liked more options for food choices.

The brakes on the A220 are sensitive and uncomfortably grabby

the whole trip was smooth, and as comfortable as flying is these days. flight crew was friendly and very courteous and helpful.

Yet another flight in which beverage and snack service was skipped. Other that that, firmly mediocre. Landed early, to gate late due to congestion at the gates. Airline's fault or airports fault: unknown.

The flights were on time which was great give. It was holiday travel season and there’d been some weather issues. The only complaint and this is every time with United is the terrible seat design. The head rest is not built for comfort and having my neck bent forward for a cross country trip reminded me while I try not to take United flights as a rule.

This was a very average flight. The seat was out of alignment so more uncomfortable than usual. The cabin felt not well maintained. But I safely got where I needed to go.

We had a 90 minute delay due to equipment failure that was detected just before we took off. United rebooked my connecting flight.

Dinner was okay but the breakfast was not eatable on the flight San Francisco to Zurich.

This was a Lufthansa flight. Disappointing main meal. Very rough over Canada and arrival at FRA. IFE was almost unusable.

Poor seating comfort, seat cushion too thin, very uncomfortable. My luggage didi not make the flight due to equipment change. At least. United had it delivered the next day. I was without my toilet items for one day.

Flight cancelled because of the grounded 737s. United was good about it and got us onto a later Alaska Airlines flight to Oakland (not San Francisco as originally intended). Had to go through security again and my wife dropped her MacBook Pro, which broke, a $2,500 whoopsie. But we made it home.

I liked being upgraded to first class. The flight was a redeye, so I did sleep most of it.

Awful, tons of delays, I got into Chicago multiple hours late meaning I hit the very traffic I tried so desperately to avoid. Just empty apologies from American Airlines text alerts. Trash behavior from a trash airline.

The boarding was as always, the crew tried their best but not enough. The food was a disaster I had dietary restrictions that were half met because the company did not loaded the food for the flight. The entertainment screen was fine but content was not and also they removed the free messaging option from the flight and they charged 30 dollars for that crappy bandwidth. This flight is not worth the cost and the company is going down on quality.

As smooth as you can expect. Some issues with boarding because the previous plane took forever to deplane but overall, a good experience.

DFW-LHR Toilets not kept clean Too cramped. Aisles so narrow crew were constantly banging into people on the aisle seats. Even then, the carts used are reduced width. Other than that it was a decent flight on both legs

Excellent customer service at check in at Austin flight to DFW and excellent customer service from Karren in terminal B at DFW.

The flight itself was fine, but between the man in front of me putting his chair back, and the gentleman next to me who took up 50% of my seat, my back and neck are destroyed from the flight. I’m hoping for a better outcome flying back.

Flight boarded without pilots. Sat on plane for 3 hrs. after over an hour late boarding. Plane never took off. Had to deplane near midnight. Line for rebooking was 3 hours + long. I had to leave.

We were told there would be no food/beverage service due to turbulence. There was very little turbulence on the 2+ hour flight. I was in First Class and thought they could have done a quick service after take off as they had a quite bit of time before we would be reaching the predicted turbulent area. They could have at least passed out a quick bag of pretzels.

Very disappointed with the crew and the lack of attention given to the passengers. On a 5 hour flight they never offered a snack. One time offered a beverage and didn’t pick up the used cups until the flight was on final approach. The two flight attendants in our section mentioned that they were best friends and compared their pre flight shoes. When paying for first/business class there is a level of service that should be expected. These two spent the majority of the flight in their seats playing on their phones and laughing with each other. Very frustrating!!!

I love the Kayak has keep on updating me about flight status as it was delayed for 30mins. as well notifications to book seat and if any change on booking. Tickets were also cheap compared to British Airways online website. No hidden charges or terms n conditions. Keep it up!!!

Everything you need to know for your flight from Portland to Costa Rica

Information on your arrival and departure airports