$308 Find Cheap Flights from Costa Rica to Seattle - Compare and Save

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Cheap Flights from Costa Rica to Seattle

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Costa Rica to Seattle

Wed, Apr 21 - Wed, Apr 28
American Airlines Logo
11:35 pm - 10:51 amSJO  San José Juan Santamaria Intl-SEA Seattle/Tacoma Intl
12h 16m1 stop Dallas/Fort Worth
American Airlines Logo
5:00 pm - 1:22 pmSEA  Seattle/Tacoma Intl-SJO San José Juan Santamaria Intl
19h 22m1 stop Dallas/Fort Worth
$557American Airlines
Sat, Nov 14 - Sat, Nov 28
American Airlines Logo
2:46 pm - 9:37 amSJO  San José Juan Santamaria Intl-SEA Seattle/Tacoma Intl
20h 51m1 stop Dallas/Fort Worth
American Airlines Logo
5:10 am - 10:47 pmSEA  Seattle/Tacoma Intl-SJO San José Juan Santamaria Intl
15h 37m1 stop Dallas/Fort Worth
$557American Airlines
Wed, Apr 28 - Wed, Jun 9
United Airlines Logo
11:13 am - 12:33 amSJO  San José Juan Santamaria Intl-SEA Seattle/Tacoma Intl
14h 20m2 stops Houston George Bush Intcntl San Francisco
United Airlines Logo
3:30 pm - 10:11 amSEA  Seattle/Tacoma Intl-SJO San José Juan Santamaria Intl
17h 41m2 stops San Francisco Houston George Bush Intcntl
$557United Airlines
Wed, Dec 23 - Sat, Jan 9
United Airlines Logo
1:15 am - 9:25 pmSJO  San José Juan Santamaria Intl-SEA Seattle/Tacoma Intl
22h 10m2 stops Houston George Bush Intcntl Denver Intl
United Airlines Logo
5:44 pm - 8:32 amSEA  Seattle/Tacoma Intl-SJO San José Juan Santamaria Intl
12h 48m1 stop San Francisco
$557United Airlines
Sun, Nov 22 - Fri, Nov 27
Alaska Airlines Logo
1:26 am - 6:16 pmSJO  San José Juan Santamaria Intl-SEA Seattle/Tacoma Intl
18h 50m1 stop Los Angeles
Alaska Airlines Logo
9:45 am - 11:51 pmSEA  Seattle/Tacoma Intl-SJO San José Juan Santamaria Intl
12h 06m1 stop Los Angeles
$557Alaska Airlines
Sun, Nov 22 - Fri, Nov 27
Alaska Airlines Logo
1:26 am - 6:45 pmSJO  San José Juan Santamaria Intl-SEA Seattle/Tacoma Intl
19h 19m2 stops Los Angeles Portland
Alaska Airlines Logo
7:09 am - 11:51 pmSEA  Seattle/Tacoma Intl-SJO San José Juan Santamaria Intl
14h 42m1 stop Los Angeles
$562Alaska Airlines
Thu, Apr 8 - Thu, Apr 22
Southwest Logo
1:10 pm - 1:15 amSJO  San José Juan Santamaria Intl-SEA Seattle/Tacoma Intl
13h 05m2 stops Houston Hobby Phoenix Sky Harbor Intl
Southwest Logo
7:40 pm - 7:00 pmSEA  Seattle/Tacoma Intl-SJO San José Juan Santamaria Intl
22h 20m2 stops Las Vegas Harry Reid Intl Houston Hobby
$602Southwest
Fri, Dec 25 - Thu, Dec 31
Delta Logo
2:24 pm - 11:55 pmSJO  San José Juan Santamaria Intl-SEA Seattle/Tacoma Intl
11h 31m1 stop Atlanta Hartsfield-Jackson
Delta Logo
5:59 pm - 7:15 amSEA  Seattle/Tacoma Intl-SJO San José Juan Santamaria Intl
11h 16m1 stop Los Angeles
$626Delta
Fri, Dec 25 - Thu, Dec 31
Delta Logo
7:00 am - 11:55 pmSJO  San José Juan Santamaria Intl-SEA Seattle/Tacoma Intl
18h 55m1 stop Atlanta Hartsfield-Jackson
Delta Logo
5:59 pm - 7:15 amSEA  Seattle/Tacoma Intl-SJO San José Juan Santamaria Intl
11h 16m1 stop Los Angeles
$645Delta
Sat, Dec 26 - Sun, Jan 3
Southwest Logo
1:20 pm - 1:35 amSJO  San José Juan Santamaria Intl-SEA Seattle/Tacoma Intl
14h 15m2 stops Houston Hobby Las Vegas Harry Reid Intl
Southwest Logo
9:50 pm - 12:20 pmSEA  Seattle/Tacoma Intl-SJO San José Juan Santamaria Intl
12h 30m2 stops Las Vegas Harry Reid Intl Houston Hobby
$1,009Southwest
Booking Insights

KAYAK's insights & trends for flights to Seattle

Get data-powered insights and trends for flights to Seattle to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly to Seattle?

The cheapest month for flights to Seattle is February, where tickets cost $533 on average for return flights. On the other hand, the most expensive months are June and August, where the average cost of tickets from Costa Rica is $696 and $670 respectively. For one-way flights, the best month to travel is December with an average price of $317.

How far in advance should I book a flight to Seattle?

To get a below average price, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 26 weeks before departure.

Good to know

Low season

March

Cheapest flight

$308
Best time to beat the crowds but there is an average 2% increase in price.
Most popular time to fly with an average 1% increase in price.
Flight from San José to Seattle

FAQs - booking Seattle flights

  • How far is Seattle/Tacoma Intl Airport from central Seattle?

    Central Seattle is 11 miles away from Seattle/Tacoma Intl Airport.

  • What is the name of Seattle’s airport?

    There is only 1 airport in Seattle, called Seattle/Tacoma Intl Airport (SEA). It can also be referred to as Seattle-Tacoma Intl, Seattle/Tacoma, or Seattle/Tacoma Intl.

  • How does KAYAK find such low prices on flights to Seattle?

    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 to Seattle.

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

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

  • What is the Hacker Fare option on flights to Seattle?

    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 to Seattle 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 to Seattle?

    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 to Seattle up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • How many direct flights to Seattle are there each week?

    Each week there are around 9,798 direct flights from within Costa Rica to Seattle. The most common day for departures is Sunday, with 20% of flights taking off on this day.

Top tips for finding cheap flights to Seattle

  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest Seattle flight deals.

Reviews of the top 4 airlines serving from Costa Rica to Seattle

 
Need help choosing which airline to fly with to Seattle? 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
SouthwestOverall score based on 4212 reviews
7.5Entertainment
8.0Comfort
8.1Boarding
8.6Crew
7.0Food
Airline reviews

Wifi was terrible. I couldn't get any work done on the long flight

4.0 OkayMichael, Sep 2026
Read more Southwest reviews

Wifi was terrible. I couldn't get any work done on the long flight

The flight was fine. Seats were very comfortable. Attendants were very friendly -

Paid for premium extra leg room but the bin space for rows 1-3 had to go in rows 4-6 and 4-6 had to go to 7-9 because flight attendants have snacks and their luggage upfront. So we pay extra to have to fight thru traffic to get our bags. Only 2nd day of new seating so hope they fix this.

Delayed flight. Nicest crew member was a SW pilot flying seated next to me who kindly move to seat the final passenger. Flight extra delayed. My cup of refreshment of ginger ale was so packed with ice it was literally 2 sips.

Southwest is Southwest. No frills. If you're luck enough to get a happy crew (we did), then it makes for a nicer flight.

I would have liked to arrive on time - not 5 hours late!

Board Milian spokesman with pre boarding , not after A group and without my spouse. Total BS, back to Alaska Airlibes I GO. oner 1.2M miles and 900 flights, and every time I fly SWA I regret it, thos will be last time, I only flew SWA but to time requirements fir a Funeral. NEVER AGAIN SWA

Good crew, funny movies, but you need phone ports in the plane and better snacks. :)

Had a long layover in rainy Chicago. The staff were attentive - my husband needed a wheelchair due to a recent fall and unsteady on his feet. They are wonderful for those of us who need a bit of extra care. My only complaint was discovered upon unpacking our suitcases at home. One (we had 3 carry on size and one just a bit larger) had water damage to everything inside. All the clothing (just happened to be the case with the clean clothes) were wet. I know it was raining, but why would items inside be wet? The paperwork packed in this case was damp with ink running. There were momentos from our 10-day European vacation that I was hoping to scrapbook - but alas, they will be scrapped - too damaged to keep. The boxes of French chocolate were damp on the outside. My expensive camera now has a cracked screen and a Gaudi tea-for-one was cracked - even though it was packed in clothing. I know it happened on this flight as I repacked all four suitcases before leaving New York in the morning. My first unhappy experience with luggage at Southwest.

The a/c wasn’t working very well and it was a very hot flight

Flight attendant was funny with the announcements. I was assigned a middle seat but I was in the Premium Cabin so got a nice snack. Not the most comfortable seats but seems standard for airlines. I was glad to get some overhead bin space for my carry on even though I was in the last group to board. Overall, things went very smoothly and orderly.

The delay of my earlier AA flight meant that I had to forfeit working the election in my county plus the compensation that went with it. I was very bummed. Flying a red eye for a 78 year person was very challenging. Thanks for asking. Sincerely, Linda Kirkbride

The back of the plane use to board first after handicap with children and first class. Now the back boards last and there’s a long line waiting to go back while everyone is putting their luggage up and standing in aisle just talking. It’s hard on the elderly. I’m elderly.

Crew was fine.at check out I didn't get my debit card back.and didn't know until I was in Seattle. There was a 5.5hour delay. I didn't get to Washington til 530this morning. So now I have to get a new card and change alot of stuff.

For the third flight I’ve taken on Alaska this year there were delays. It’s become almost a gamble and hope for the best especially catching the late flight out of Kalispel to Seattle. Don’t even get me started on the flight out of Seattle to Sacramento. I will try another airline whenever possible moving forward.

Like to get onward pass from Alaska airlines and Cathay Pacific more seamless. As the online check-in procedure you sent didn't work and I have to get to the airport really early to check-in with counter.

I was a late add on to this flight because my previously booked flight was delayed, which would have made me late for my connecting flight. I was given the last seat on the plane which isn’t a huge deal but the seat had lots of dust and black mold looking growth along the air vents, making me uncomfortable with using it for the 6 hour flight. There was a gross fecal matter looking stain on the edge of the window in front of me. I paid for the WiFi, which did not work for the most of the flight.

The flight itself was good but I am not a fan of a lot of people and so much sensory I couldn't take that part. My brain went into rescue mode cause there was to much going on. I am to interverted to out here peopling. I like the emergency section but when I feel like I am trapped cause there are people next to me I almost wanted to jump out to be honest. I didn't obviously but I now know what all I can handle and what not. Thank you for hearing me out. If there are better times for people with sensory issues and having borderline personality and anxiety issues please let me know

Alaska Airlines has great customer service. I would like the Alaska lounge to improve with food options.

No free internet, lazy flight attendants that did not like to serve drinks. Blamed it on turbulence but there was not any.

This was an auto-rebook due to being delayed from an earlier UA connecting flight. The boarding was fine, but they sat me in a middle seat when my original booking was a window seat. Overall, the flight was fine as it still got me to my final destination.

The flight was delayed by a hour and I wish they had communicated it sooner. No issues on the plane, it did take a while for food to come.

Smooth and easy boarding, comfortable for the entire 5 hour flight, and the seat back entertainment was great! I appreciated all the features, from location info and maps, movies, the ability to connect with Bluetooth headphones, and good selection of movies. Food was good, normal airline snacks (I didn’t purchase anything)

it was so bad. I tried to board my flight from vancouver to saskatoon. And to my surprise they did not board me cause the flight was changed and no email was send to me. and on my boarding pass which i got from seattle says different flight. I did not knew anyone from Vancouver, air canada crew was rude, i asked for today flight but they were rude and i had early morning dental appointment in saskatoon. I was so much in pain and my whole day is wasted today. and i suffered alot. They did provide me hotel but they did not provide me any food. I am really really disappointed first time had so bad experience with air canada. I may think twice to book it again. If i can get any reply or any composition that would be great. Thanks

leg space better than expected. two washrooms for one plane isn't enough.

The seats on this flight were almost roomy enough to be the basic amount needed for human existence. I think my favorite part of this flight was it landed at an A gate, which was the most palatial part of Sea-Tac I've ever seen - a massive improvement from the S gates.

Everything was fantastic. Modern plane. All the amenities! Although the paid snacks and meals are pure robbery. Like i understand airlines need to make money, but 11$ USD for an overnight oats with some nuts in it and barely any pieces of apple.... Highway robbery

An hour and a half late is UNACCEPTABLE. The negative impact to our family is unconscionable. And for the price we were forced to pay...

Our flight was delayed many times throughout the day. The final delay was about 8 hours. I spent time in line to speak to someone at their understaffed desk, and also spent time waiting online and then chatting with a service rep. None of the United employees were any help at all. I desperately wanted to go get rest and possibly re-book my trip but I was denied any compensation or voucher for a hotel. I was repeatedly told it was not United's fault and therefore they had no compensation to offer. Overall, a cold and callous experience.

Flight crew and pilots did great. Flight way delayed due to a part needing replacement. Based on what the pilot indicated- the maintenance crew could’ve resolved this more efficiently than replacing whole part- and taken less time

Plane was super cold. No entertainment unless you were with mileage program Getting off the plane was super slow

Beverage service was not good. Also just one service in 5 hr 30 min flight. No ask fir water ir anything beside one time beverage service.

Flight was delayed because of a bird strike. They had another plane available within 45 minutes.

It was a code share with Alaska - would have been great if I actually made it on the plane, claimed I didn’t have a ticket or a seat even thought I was checked in.

The main problem was delay. The plane was at the gate early and bags were loaded. However, there was no crew for the flight. They were inbound from LGA and had to land and make their way to our gate. It took more than 40 minutes. Then, once the crew arrived and boarded, one of the crew members had to deplane and then a replacement crew member had to be found. It took another 40 minutes or so to get the final crew member. In all, we took off about 2 hours later than our scheduled departure time. Once in the air, the flight was great. Smooth most of the way. The crew was professional and efficient.

i suspect i caught flu on this flight as i could hear someone coughing a few rows back and ended up with flu a few days later. also tiresome to have to watch movies on my device by holding up smartphone screen, would have liked to have in seat display.

I had trouble finding a boarding pass because I had an hour between Flights and American did not see my flight I believe because I was ticketed through KAYAK. I did not have enough time to go to the desk before boarding so I went to the desk and told them while I was boarding and they had a boarding pass for me within three minutes. Nice. I paid extra to have more legroom and it is definitely worth it for a six hour flight. I would’ve paid for a decent dinner, but they didn’t offer anything but a snack box —not good for six hours.

Terrible flight seats where really uncomfortable I had body aches for 2 days and flight was delays almost two hours

Very smooth for one of the busiest travel days of the year and the crew was great.

Customer service prior to boarding is horrible Communication regarding boarding gates is released at the last minute and the gates are very distant from Customs. Very disappointing

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