$204 Find Cheap Flights from Seattle to Costa Rica - Compare and Save

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Cheap Flights from Seattle to Costa Rica

Cheapest round-trip prices found by our users on KAYAK in the last 5 days
San José
San José2 stops$574
Liberia
Liberia1 stop$441
San José
San José2 stops$574
Liberia
Liberia1 stop$441

Price, demand and travel trends for Seattle to Costa Rica flights

Use KAYAK data on prices, travel dates, airlines and seasonal trends to compare options and book flights with more confidence.

Are flights from Seattle to Costa Rica cheaper or more expensive than last year?

Fares from Seattle to Costa Rica are running about 4% higher than they were around this time last year, averaging $678 round-trip.

What are the cheapest fares from Seattle to Costa Rica right now?

The cheapest fares from Seattle to Costa Rica on KAYAK in the last week were to Liberia (LIR) from $441 round-trip, and to San José Juan Santamaria Intl (SJO) from $574 round-trip.

What’s the cheapest month to fly from Seattle to Costa Rica?

January is the cheapest time of year to fly, with average fares of $555. Prices are highest in December, when average flight costs increase to around $785.

When is the best time to book flights from Seattle to Costa Rica?

Book your flights 24 weeks before your trip. KAYAK data collected over the past 12 months shows that booking in this window can save you around 17% compared to booking last-minute (within 2 weeks of departure).

Which airport in Costa Rica is the cheapest to fly to from Seattle?

Based on KAYAK data from the past 12 months, the cheapest airports to fly into Costa Rica are:

• San José Juan Santamaria Intl (SJO) from $659
• Liberia (LIR) from $777

What’s the cheapest day to fly from Seattle to Costa Rica?

Tuesday tends to be the cheapest day to fly from Seattle to Costa Rica, while Friday is the most expensive. Fares run about 17% higher that day, based on the past 12 months of KAYAK data.

What's the cheapest time of day to fly from Seattle to Costa Rica?

Data from the past 12 months shows it's cheapest to fly to Costa Rica during the morning with average prices of $687. The night is the most expensive time to fly, with average prices of $759.

Key details for Seattle to Costa Rica flights

Low season

October

Cheapest flight

$204
Beat the crowds with an average 40% drop in travelers.
One-way flight from Seattle to Liberia

Your Seattle to Costa Rica flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines and booking tips.

  • Is now a good time to book a flight from Seattle to Costa Rica?

    Yes. Fares from Seattle to Costa Rica are low right now. As a rule of thumb, a round-trip under $542 (cheaper than most fares this year) is a good deal, so if you spot one at or below that, it's a good time to book.

  • How much should I budget for a flight from Seattle to Costa Rica?

    Over the past 12 months, round-trip fares from Seattle to Costa Rica have ranged from $542 to $921.

  • What are the main airports serving Costa Rica?

    Flights to Costa Rica use two main airports, San José Juan Santamaria Intl (SJO) and Liberia (LIR).

  • What airlines fly nonstop from Seattle to Costa Rica?

    Based on the flight schedule for the next 3 months, just one airline regularly flies nonstop from Seattle to Costa Rica: Alaska Airlines.

  • Where in Costa Rica can I fly nonstop from Seattle?

    Based on the flight schedule for the next 3 months, you can only fly nonstop from Seattle to Liberia.

  • Is it cheaper to fly with a layover from Seattle to Costa Rica?

    Yes. Nonstop flights from Seattle to Costa Rica average $1,008 over the past 12 months, but flights with a layover can cost less. The most affordable connecting airports are:

    • Chicago O'Hare Intl (ORD) from $358
    • Fort Lauderdale (FLL) from $446
    • Minneapolis St Paul (MSP) from $592

  • How long is a flight from Seattle to Costa Rica?

    Flights from Seattle to Costa Rica take 7h 08m on average.

  • Which cabin classes are available on flights from Seattle to Costa Rica?

    On flights from Seattle to Costa Rica you can book Economy Class, Business Class or First Class.

  • What are some popular landmarks in Costa Rica?

    KAYAK travelers' favorite landmarks in Costa Rica include:

    • Parque Metropolitano La Sabana
    • Estadio Nacional de Costa Rica
    • Museo de Oro
    • Morazan Park

  • What are the earliest and latest flights from Seattle to Costa Rica?

    The earliest nonstop flight from Seattle to Costa Rica departs at 8:08 am and the latest departs at 10:06 am. Nonstop flights take about 7h 08m.

  • What type of travel documents will I need to fly from Seattle to Costa Rica?

    Citizens of the United States traveling from Seattle to Costa Rica need a valid passport for the trip, and the passport must be valid for the entire length of their stay. There is no need to have a visa when you travel as a tourist so long as you do not plan on staying for more than 90 days, but you do need to provide a return plane ticket to customs authorities.

  • When renting a car in Costa Rica, what child car seat laws do I need to know about?

    Car seats are mandatory for any children 12 years old and under or for those that are 57 inches or shorter. Any child up to one year of age must be in a rear-facing car seat in the middle seat in the rear of the vehicle. Children from one year to four years old need to be in a front-facing car seat in the middle seat. Children from four to six years old must be in a booster seat with a back, and children from six years old to 12 years old need to be in a booster seat without a back.

  • Are there any good public transportation options to get me from San José Juan Santamaria International Airport to downtown San Jose?

    A quick and convenient way to get from the airport to the downtown area is aboard TUASA bus line 200 Alajuela, which makes the trip from the airport to downtown in around 30min.

  • If I am traveling to the seaside community of Golfito in Costa Rica, what is a good airport to use?

    Your best bet is to fly to the San José Juan Santamaria International Airport and then travel aboard the bus service offered by the Grupo Blanco number 699 bus that can make the trip in around 3h.

Your guide to booking Seattle to Costa Rica flights

Get tips on when to book, when to fly and what to know before your trip.
  • If you can plan ahead, the sweet spot for booking your flight is 24 weeks before your trip. KAYAK data shows fares in this window are around 17% lower than last-minute bookings (made within 2 weeks of departure). Not ready to commit? Set a Price Alert and we'll let you know when prices change.
  • If your travel dates are flexible, book your trip for January when flights are typically cheapest and avoid December when prices are at their highest.
  • Flying on Tuesday is usually the cheapest. Flights on Friday cost about 17% more on average, so being flexible with your travel dates could help you save.
  • If you're looking to save, San José Juan Santamaria Intl (SJO) is the cheapest airport to fly into from Seattle. If you have onward travel, don't forget to factor in the cost of your journey by train, bus or domestic flight.
  • Start your trip in San José, which is the most popular destination in Costa Rica. From there, it's easy to continue on to other popular destinations such as La Fortuna, Tamarindo and Manuel Antonio.
  • If you want the shortest trip, choose the Seattle to Costa Rica nonstop route. If you'd rather save money, the route via Chicago O'Hare Intl (ORD) is usually the cheapest.
  • One of the most common trips for people traveling from Seattle-Tacoma International Airport (SEA) to Costa Rica is to fly to Liberia Airport (LIR). On this route, you will find one-stop service aboard both United Airlines and American Airlines. If you are looking for a cheaper option on this route, consider one of the two-stop options aboard American Airlines.
  • Another popular destination for travelers making the trip from Seattle to Costa Rica is to fly to the San José Juan Santamaria International Airport (SJO). On this route, you will find one-stop service aboard Delta Airlines, United Airlines, American Airlines, and Spirit Airlines.
  • If you're looking for a way to get to the Seattle-Tacoma International Airport without having to drive your car, a good choice would be to take the King County Metro bus line 124, which makes the trip from downtown Seattle to the airport in around 45min.
  • A very quiet and comfortable place to wait for your flight to Costa Rica at the Seattle-Tacoma International Airport is at one of The Club SEA locations at the airport. There are also airline lounges available from United Airlines, Delta Airlines, and Alaska Airlines, as well as a Centurion Lounge at this airport.
  • If you are looking for a great way to get refreshed after a long flight from Seattle to Costa Rica, the San José Juan Santamaria International Airport offers showers in the terminal building for use by travelers after long trips.

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

 
Need help choosing which airline to fly with from Seattle 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 13037 reviews
7.8Comfort
8.5Crew
7.0Entertainment
7.0Food
8.1Boarding
Airline reviews

Truly, everything was professional, and extremely friendly with lots of smiles from all the staff. My only complaint is that both coming and going from San Francisco to Seattle and back the public announcement system on the airplane when I was sitting in the exit row was so loud that it hurt my ears, and I was not the only one I did report it to one of the stewardesses who thanked me and apologized, but truly Alaska Airlines is my favorite domestic Airlines by a far shot

10.0 ExcellentCarl, Oct 2026
Read more Alaska Airlines reviews

Truly, everything was professional, and extremely friendly with lots of smiles from all the staff. My only complaint is that both coming and going from San Francisco to Seattle and back the public announcement system on the airplane when I was sitting in the exit row was so loud that it hurt my ears, and I was not the only one I did report it to one of the stewardesses who thanked me and apologized, but truly Alaska Airlines is my favorite domestic Airlines by a far shot

Cheeseburger was good, but other sides were awful. Attendents were great! Flight was good, except for changing gates 4 times and flight being delayed over an hour..

Boarded a little late as they fixed a toilet, but still landed on time. Alaska drop bags process is a little like a cattle drive or bus process in Seattle, but the rest of the travel experience was great.

Flight was early and boarding the plane was flawless. The temperature on the flight was warm and my vent didnt work for air blowing. I only had a biscuit as a snack.

Uneventful, which is perfection in airline travel. Everything happened as it should and when it should. Flight was short so no food. I could have used the App to watch something but took a nap.

Was OK but my seat was way in the back(on a premium economy itinerary)

Alaska did a great job of accommodating my needs and treating me fairly. I appreciate their willingness to smile and be caring.

Flight was way over-booked and the turn over too fast from the last flight to the next. We had delays both ways due to storms -- not our trip but the one the plane had taken before us. Just seemed like poor time management. Shouldn't there be a slight buffer built into the schedule? And every seat was full to the detriment of loading.

Delayed 2-3 hours. We boarded one plane, then had to deplane, and board another. Got to Houston 2 hours after the scheduled time at 2 am CST.

Other than delays by two-three hours it was good.

Delta is the best. It was all very easy and on time.

Delay from Atlanta to Tampa was simply unacceptable. Multiple delays led to us landing after 3am. Worst travel experience of my life

I somehow thought my food preferences was saved to my account— everything had dairy and couldn’t eat anything.

Comfortable seats. Nice service online. Short flight, so not a lot of time to enjoy.

The flight was done by SkyWest only WIFI no entertainment center are available on the CRJ

Everything worked smoothly, never had a concern with the flight from start to finish.

My flight was delayed by 4 hours in 30 minute increments. The gate agents were amazing but the communication was not. We were told that there was a maintenance issue but they didn't know what it was. That didn't inspire confidence. Then they said they found it and it was fixed and the pilot just needed to sign off. Then the pilot needed to talk to the other pilot from the arriving flight and we'd be fine. Then we were waiting for the pilot to call back. Then the maintenance issue wasn't fixed. Then they decided we were getting a new plane (why didn't they decide this earlier??). Fine. But then they announced we were changing gates AND terminals. And we were boarding in 20 minutes. So we all had to run to the new terminal gate. We could have taken off at that time, but we then had to wait for all the people who rebooked on a different flight to book this flight again. That took 30+ minutes because there was only one gate agent. When everyone ditched this flight, I saw it as an opportunity to upgrade to comfort. Delta, the greedy jerks they are, charged me $121. After their delay, their fault, their issues, couldn't even discount an upgrade. They only handed out $12 meal vouchers for the delay. I can't even get a snack from starbucks for that.

Love me some Delta. One of the few airlines to recognize and support veterans. Easy boarding, flight was on time and arrived early and the flight attendants were excellent on this flight.

We sat on the runway for over an hour before departure. That was unwelcome.

The Boarding process was great. Particularly since my wife and I require assistance. The flight attendants were amazing. We travel frequently; they honestly were a cut above. 😀

Premium economy was worth it. Great seats and good food.

Flight be on time would be a good start. Then train your flight attendants to be attentive and friendly. This time they completely forgot my row for the measly snack! United, do better!

Our flight was delayed several Times due to mechanical issues. Although I understand this may happen at times, it was very inconvenient and we had to book a hotel for an overnight stay. We were traveling with my 3-yo grandson and waiting at the airport from noon until 6:30pm with no reassurance that our next rescheduled flight would depart, we had to decide what’s best for him. A day later, I found out that I may be able to demand compensation if my flight is delayed more than 4 hours. I will hav to read the fine print next time.

Very comfortable seating and the Flight staff were very attentive. The premium economy section that I was seated in was very clean, updated, and well appointed. I would highly recommend flying United Airlines as this experience was better than the Japan Airlines business class that I flew several months ago.

United needs to step up their game. Delayed flight leaving Seattle, San Francisco. Older aircraft, not very comfortable.

Had to cancel first flight because Airporter Bus took over 3 hrs to get to airport which resulted in an extra $378 dollar fare . Is there anyway I can be reimbursed for initial fare since it was not my fault? Sent from my iPhone EJ Ledet

Delayed by 2.5hrs any longer and they would’ve had to honour their own policy for breaking their own rules and regs. Not cool, especially when I have an infant child that needs to stay on a routine and they get schedules.

They had three choices for snacks - but you could only have one - and they ran out of the dark chocolate before they made it all the way down the aisle... Packed flight - limited service.

They opened my checked bag and even though my lock was tsa approved, they loose my lock and left my bag just like that. Incompetent people, very upset about it. I’ll try to avoid traveling with united

We fly to Ecuador frequently. Checking in is usually a hassle because most United agents take some time before they can verify that my passport doesn't require a visa to Ecuador. This time the process was even longer due to the cyber attack. But she was really nice to us. So glad we brought plenty of snacks to supplement the 3 flights from SEA to GYE.

The crew was friendly and helpful. The entertainment system in my row did not work for movies and TV shows and the Direct TV cut off in parts and stopped showing the baseball playoff game.

Non-stop commercials were frustrating when trying to view direct TV

see my previous response about being kicked off the flight and having to fly the next day, ruining a planned vacation tour.

The flight was delayed for more than 3 hours the flight attendant was so angry, it was my first flight with JetBlue but i don’t think I flight with them again.

The plane was late to leave.. Internet was lousy. TV was not working. when we arrived, We stayed on the plane for a long time before we got to the gate. It took us a long time to retrieve our luggage because they didn’t know what carousel to send them to. It was a bad experience.

Seats were not too comfortable; it was impossible to locate the underseat power outlet.

The flight departed more than 1 hour late. Leg room is bigger than most airlines

It was too hot in the cabin. The AC did not help.

terrible. Because I felt very unwell during the flight. How do they leave a woman alone in the middle of 2 men? an obese man who was falling on top of me.

I booked this flight using JetBlue points and I was just so happy. The plane was so clean, I had every need met. Thank you!!

I had to buy another ticket and you haven't reimburse me for it.

Wheelchair folks are great. Food not to my liking. Crew more interested in their lives than the passengers. Got the job done but just the minimum.

Flight attendants and crew were great! This plane was fine. It was clean and everything worked properly. Now, the gate change was not communicated. No text or information. It wasn't far with the gate change but it still changed without any communication. Not sure if this is on American or Kayakl. Also, internet was the worst. I would never have ATT. 3+hr flight and weak internet. I think I watched the commercials to get on at least 6 times. Terrible internet!

We did not have enough time to make our connecting flight. As a result, we were put onto a different airline for our second leg. The different airline was NOT comparable to British Airlines, and our arrival was significantly delayed. The actual flight on BA was amazing.

So excited very proud first of all I wanna thank kayak all updates very professional and fast alart And amazing cabin crew so nice to me they deserve big salute

Great flight - friendly and attentive team! Seats in coach were comfy, but a little cramped - but that is the case with all airlines ;)

Dreadful experience. Our flight was delayed more than 8 hours due to a maintenance issue and the assistance from rebooking was poor. I was travelling with a bad knee and needed assistance waited in one place more than 3 hours before someone came with a wheelchair. The woman next to me was a 91 year old great grandmother who had waited more than 4 hours. There were moments of support from the staff but it appeared as they were going against the direction of management. It was apathy, lack of ownership and dismissive responses with small moments of kindness and understanding typically from grey haired, female, veteran staff..

Everything was great except it became so hot on the plane I couldn’t sleep on my red eye flight. It didn’t really cool down till we started descending.

The only thing is if Wi-Fi is available after you land and taxi to the gate. It takes forever to get to the gate, and having the Wi-Fi continue would be great to bide the time at least 5 minutes before you arrive at the entrance. That is my only comment; otherwise, everything was good.

Airplane was cold. Flight attendants were rude. Phone charger did not work. No food available.

More options for your flight from Seattle to Costa Rica

Complete your trip to Costa Rica with a hotel stay or car rental