$107 Find Cheap Flights from Portland to Costa Rica

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 2/15. 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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1 adult, Economy, 0 bags

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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 José1 stop$276
Liberia
Liberia1 stop$285
San José
San José1 stop$276
Liberia
Liberia1 stop$285

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

Sa, Jan 24 - Mo, Feb 2
United Airlines Logo
7:51 pm - 8:32 am
PDX
-
SJO
10h 41m1 stop
United Airlines Logo
9:40 am - 11:06 pm
SJO
-
PDX
15h 26m1 stop
$276United Airlines
Mi, Jan 21 - Do, Feb 5
United Airlines Logo
7:00 am - 8:39 pm
PDX
-
SJO
11h 39m1 stop
United Airlines Logo
9:40 am - 11:06 pm
SJO
-
PDX
15h 26m1 stop
$277United Airlines
So, Jan 25 - Do, Jan 29
United Airlines Logo
7:00 am - 6:16 pm
PDX
-
SJO
9h 16m1 stop
United Airlines Logo
8:45 am - 11:06 pm
SJO
-
PDX
16h 21m2 stops
$280United Airlines
Mi, Jan 21 - Di, Jan 27
United Airlines Logo
7:00 am - 8:39 pm
PDX
-
SJO
11h 39m1 stop
United Airlines Logo
6:30 am - 9:12 pm
SJO
-
PDX
16h 42m2 stops
$281United Airlines
Fr, Feb 6 - Fr, Feb 13
American Airlines Logo
6:00 am - 10:30 pm
PDX
-
SJO
14h 30m1 stop
American Airlines Logo
12:31 am - 7:38 pm
SJO
-
PDX
21h 07m1 stop
$283American Airlines
Di, Jan 20 - Do, Jan 29
American Airlines Logo
10:15 pm - 12:37 pm
PDX
-
LIR
12h 22m1 stop
American Airlines Logo
3:23 pm - 11:32 pm
LIR
-
PDX
10h 09m1 stop
$285American Airlines
Mo, Jan 12 - Mi, Jan 21
United Airlines Logo
7:51 pm - 8:32 am
PDX
-
SJO
10h 41m1 stop
United Airlines Logo
6:30 am - 6:56 pm
SJO
-
PDX
14h 26m2 stops
$288United Airlines
Do, Apr 9 - Sa, Apr 18
Multiple Airlines Logo
7:00 am - 10:40 pm
PDX
-
SJO
14h 40m1 stop
Multiple Airlines Logo
8:50 am - 8:30 pm
SJO
-
PDX
12h 40m1 stop
$306Multiple Airlines
Di, Mrz 3 - Di, Mrz 17
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
13h 59m1 stop
$308Multiple Airlines
So, Mrz 1 - Do, Mrz 5
Alaska Airlines Logo
10:30 am - 6:45 am
PDX
-
LIR
18h 15m1 stop
Alaska Airlines Logo
7:08 pm - 9:35 am
LIR
-
PDX
16h 27m1 stop
$323Alaska 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 September, when tickets cost $359 (return) on average. On the other hand, the most expensive months are March and December, when the average cost of round-trip tickets is $787 and $786 respectively.

What’s the cheapest day of the week to fly from Portland to Costa Rica?

The average price of all round-trip flights from Portland to Costa Rica clicked on KAYAK for each day over the last 12 months.

Your flight ticket price will generally be cheaper if you fly to Costa Rica on a Tuesday and more expensive on a Friday. On your return trip to Portland, you should consider flying back on a Monday, and avoid Sundays for better deals.

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 4 weeks before departure, which saves you about 16% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 16 weeks before departure.

Good to know

Low seasonSeptember
Cheapest flight$107
Best time to beat the crowds with an average 32% drop in price.
Most popular time to fly with an average 31% increase in price.
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.

  • What is the cheapest time of day to fly to Costa Rica?

    The cheapest time of day to fly to Costa Rica is generally in the evening, when round-trip flights cost $605 on average. Morning departures are around 14% more expensive than evening flights, on average. The most expensive time of day to fly to Costa Rica is generally in the morning, which is peak travel time and where the average cost of a ticket is $688.

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.
8.0
Alaska AirlinesOverall score based on 11396 reviews
8.5Crew
7.0Entertainment
7.8Comfort
8.1Boarding
7.1Food
Airline reviews

The food selections were not good, and entertainment was non existent.

8.0 ExcellentAnonymous, Dec 2025
PDX - ONT
Read more Alaska Airlines reviews

The food selections were not good, and entertainment was non existent.

I would have liked if the flight existed. To be fair the federal government canceled it. But, since it WAS canceled, I would have liked it if Alaska Airlines had moved a finger to assist me rather then abandoning me with my luggage, unable to check it, for 14 hours in Portland. So federal regulations forbid them from storing my bag? Then at least help me find storage or SOMETHING.

It was all good, no delays which was a worry. All great

It was a pleasant experience. Considering we paid over $3000 for first class there really wasn’t anything special about first class. All the seats looked the same and everyone got the same great customer service. The only thing that was different between first class and couch was the drinks and the meal. We wouldn’t waste that much $ on first class on that plane again.

This was more with the third party booking through Kayak but my KTN for Pre-TSA, even though I entered it, wasn't assigned to my ticket when I got to the airport. I had to go through regular security. Also the Alaska app had trouble loading my ticket in the first place and I had to ask for it to be printed. Alaska Airlines was great but wanted you to know about this hiccup in the ticketing interface.

Process of checking bag, boarding, etc. was all very quick, easy, and streamlined. Only problem I had was the seating: very cramped and uncomfortable, but I suppose that’s the perils of coach. Thankfully it wasn’t a super long flight so it didn’t ruin the experience overall.

The boarding was confusing because the PA system at PDX was so quiet you couldn’t hear anything being said . The seats were uncomfortable. The food was pretty bad and I normally don’t mind airplane food. The flight attendants were not friendly. I learned upon check in that Hawaiian airlines had reassigned our seats of the second leg of the trip. I had confirmed and paid for special seats but they put me and my companion on standard seats in different rows. Hawaiian also did the same on my return flight after the flight times had changed. I happened to go online to check my reservation and saw the flight had changed. I gad received no notice. I saw that my confirmed seats that I had paid extra were gone. After much back and forth with the airlines they refused to correct their error. I showed them confirmation documents of my seat reservation and receipt of payment but they refused to correct the seat change or reimburse me. I had to pay $200 again to reserve the original seats. Shameful and manipulative. They basically held me hostage. If I wanted to be in that flight I had to pay up.

When I bought my tickets I up great my seats for extra $104 each seats 8A and 8B in the way back from Portland to Palm Springs they gave me the seats 15. I thought it was for round trip same seats . So I was very disappointed ☹️

One disappointment. There was a gate change from B8 to B10, they had announced it maybe 20 minutes before the boarding time, possibly less. I didn’t hear the announcement as I was listening to music on my head phones at B8. At the boarding time, I got up and asked the gal at the B8 boarding desk, why the destination sign had not changed and if the flight was delayed as there was no plane behind her through the window, she said that perhaps the flight was delayed and the screen will probably update in -5 minutes ( she apparently didn’t know the boarding gate was changed ( 2 down from our location) I put my headphones on and went back to sit down . Just before the B10 door closed, I got a phone call asking me if I was still taking the flight, I said. “Yes” but I was at the gate stated on my ticket B8, then I was informed of the gate change, I got up and ran to the gate, and down the hallway to the jet ramp. I was the last to board!! Very frustrating . I was shocked that I got no emails or text messages from Alaska informing me of a last minute change!!

The crew was the best I’ve ever had HOWEVER when we arrived in Salt Lake City there were no Alaskan Airline employees to be found so we weren’t able to leave the plane until ANOTHER airline took pity on us. How could that possible happen?

Airline travel is always too cramped to really be pleasant, but the cabin crew on this flight did a pretty good job of making up for it by putting on some music during boarding and sprinkling a few funny remarks into the safety briefing and announcements, and just generally being friendly and helpful. It definitely reminded me of why I prefer the in-flight experience on Southwest!

No delays and arrived to destination 30 min early. Staff was super friendly.

San Diego airport is brand new, spacious, airy and very smooth checkin at SW baggage drop.

It was rough. The staff was unprofessional, the choice of on board drinks terrible, it was cramped in space at every airport, they always ran out of overhead bin space so they pressured people to check bags for free or we couldn’t leave on the plane— so I did check my bag to help, and they nearly lost my bag. My bag did not arrive on the luggage belt, another man on my flight and I had to waste our time going to the baggage office to search for our bags. I would only fly southwest again if it was my last choice. Also, my flights were consistently delayed over and over again— at one point they straight up told us we were waiting for the pilot to arrive.

Crew could have been friendlier, maybe I'm spoiled by SW crews. In flight wifi was good. Would be nice to have more food offerings on a 4 plus hour flight

Had to get off plane from prior flight even though I had to reboard same plane to continue to my final destination.

Everything a cheap airline should be at normal airline rates.

Plane crashed into a bus or some other vehicle on the ground while pulling out of the gate. No injuries, but wing tip was damaged and returned to gate for “maintenance issues” and we departed 5 hours later because the plane went out of service and new plane was flown in from a nearby airport, Midway.

Ever since Southwest starting charging for bags, passengers don't want to pay to check their bags, so the gate agents have to beg people to check their roller bags now because there's "not enough space". This was a terrible business move by Southwest.

Full cans of soda would be nice. A choice between two snacks would be appreciated.

I fly Delta all the time, have Platinum Medallion status. But this route seems to have major problems with delays and seems to never leave on time! Have only taken it twice in the last two weeks, and each time it had delays of more than 1 hour... very disappointed!!!!

Getting to the flight was arduous and lengthy. The flight itself was good but the food option wasn’t a good selection. I need to do a Kosher option on my return. Flight crew were nice

Good seats in Main cabin, excellent service and excellent landing

My flight was cancelled with no explanation after I had already cleared security. I was given 4 options to rebook, only one being non-stop like I had paid for. I grabbed it. It was 4 plus hours later and then took off even later. Biggest complaint is that I booked early and had an aisle seat. They gave me a "window" seat in front of the exit row, so the seat did not decline. I weigh all of 103 #s and it was tight for me! For what I paid, I feel I was kind of ripped off. I think they should have given me the empty comfort seat for the inconvenience. There was no apology nor any explanation as to why the flight was cancelled. My guess is it benefitted Delta in some way.

Very smooth, on-time, and pleasantly uneventful flight. The team at the gate and on board were professional and genuinely courteous. The pilot kept us well updated throughout, and both takeoff and landing were steady and enjoyable without any drama. Just a good, solid flight. Thank you! 💗

Staff was exceptional! Everyone was kind, professional and friendly making the trip very pleasant. Thank you!

No lunch on a x-country flight scheduled for 10:50 am departure, arrived 5+ hrs later. That requires a black box label before you pay for the tickets. Worst, when I checked in online, it's specifically said that lunch was served on his flight for economy Plus passengers.

We had a lot of really rough weather but that was not Delta's fault. Pilot was amazing.

First, Delta needs more flights to/from Miami. Second, a 1000pm leaving at 1230pm is unacceptable from their biggest airport world hub. Another aircraft could have been used such as the aircraft scheduled to be used in the morning for that exact same route. Yes, I did get me there but the lack of sleep the next day didn't help me enjoy my entire trip since I was busy with activities during the weekend. This can be and is expected from Spirit (going bankrupt) and Frontier (despite they're nickel and dimers). But from Delta's World Hub? That's totally unacceptable!

This flight was straightforward and without difficulty. Service was OK, but I continue to be underwhelmed by level of attention given to Sky Priority passengers.

Flight was delayed 8 times. We were sitting at the airport for 14 hours. We got 2 hours of sleep (if that) on what was not meant to be a red-eye.

The movies offered were great. Staff were very pleasant and very efficient.

After a delay at the gate, C3, at Ohare on Sunday, I left my Blk ski coat on the bench at the gate, lost! Please review my lob claim, thx.

Very bad! They kept delaying my flight and wouldn’t do anything about it

They brought an empty plane to the gate. Then a flight delay was announced for maintenance and waiting on a part. I was then put on a flight to San Francisco instead with a connecting flight to my final destination. Arrived at my final destination 2 hours late.

The only downside was my cell phone charger wouldn’t work in the charging port but everyone else’s would work in them all. My cell phone cable works fine in my hotel room in Frankfurt.

Flight and crew were great. United didn't inform crew of immigration process which was disappointing!

Flight team stood out for perzonal attention, kindness at bright cheery attitudes at 8am. Very helpful.

Seats had less pitch than a regional jet. Food was OK. Have to buy alcohol on US based carriers flying international. Boarding was a mess. Did not have bags but overhead space was gone quick. Would like to see the airlines enforce the one bag over and one bag under policy

Ot was overall fine. Left on time and had basic snacks. Weather was finicky but that’s not the airlines fault.

AA delayed the flight for 3 hours and 50 minutes, but delayed the last 2 hours, 30 minutes at a time, so if we knew before, could have stayed at home and worked instead of being at the airport wasting time... The plane's crew was excellent, not their fault.

After arriving in Dallas, the aircraft taxied for an unusually long time and was unable to park at the gate, which caused a significant delay and made me miss my connecting flight. I then had to wait in a very long line to be rebooked, and I was told that no hotel or meal accommodations would be provided. What is even more unacceptable is that my luggage was mishandled and has still not been located. My suitcase contains important medications that I urgently need, and I have been unable to access them due to the airline’s mishandling. This situation has caused me considerable stress and inconvenience, and I need this issue to be resolved immediately.

RIC Staff was not enough. Elderly passengers had to wait 30 minutes to deplane, so we could board and still had to walk as no chairs were provided. And, passenger in front of my seat assignment rammed seat against my legs entire flight time. Was mildly bruised and left thigh still sore.

Liked that it was on time. Staff professional and friendly.

Things were delayed a little. But that didn’t affect my plans. It was fine. I was surprised it was so full thanksgiving day. The crew were friendly and professional.

I appreciated that it was on time, safe and professional. I didn’t like that I wasn’t in a place where I had a window at my window seat. It would have been nice to know that in advance. If it was mentioned in the ticketing, I didn’t notice it.

My flight was delayed about three hours. I got home at 3:30 in the morning very bad experience.

I like that the crew kept us informed but we moved back and forth from gate to gate before the aircraft arrived.

The flight was delayed multiple times, again no fault of American but again the extra cost, for everything makes it feel like a cheap airline! Especially when flights are outrageously expensive already

Horrible. Both legs of my flight were delayed more than 6 hours. No compensation, no screens on the plane, and the plane was not clean.

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

Information on your arrival and departure airports