$209 Find Cheap Flights from Costa Rica to Seattle

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to Seattle departing on 2/25. 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.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Seattle

 
These are the airlines KAYAK users have selected most often from within our search results for flights to Seattle, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results for flights to Seattle, as well as popular online travel agencies
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 24% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Costa Rica to Seattle

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Costa Rica to Seattle 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 Costa Rica to Seattle

Mon, Feb 2 - Sat, Feb 7
Multiple Airlines Logo
7:45 am - 10:29 pmSJO-SEA
16h 44m1 stop
Multiple Airlines Logo
6:20 am - 11:15 pmSEA-SJO
14h 55m2 stops
$404Multiple Airlines
Find Deal
Sat, Nov 22 - Sun, Dec 7
Delta Logo
8:26 am - 8:56 pmSJO-SEA
14h 30m1 stop
Delta Logo
6:00 am - 10:20 pmSEA-SJO
14h 20m1 stop
$411Delta
Find Deal
Mon, Jan 26 - Sat, Jan 31
Multiple Airlines Logo
3:05 pm - 11:03 amSJO-SEA
21h 58m2 stops
Multiple Airlines Logo
6:53 pm - 1:40 pmSEA-SJO
16h 47m2 stops
$412Multiple Airlines
Find Deal
Tue, Dec 23 - Mon, Jan 5
United Airlines Logo
12:35 pm - 10:52 pmSJO-SEA
12h 17m1 stop
United Airlines Logo
1:35 pm - 6:25 amSEA-SJO
14h 50m2 stops
$419United Airlines
Find Deal
Sat, Nov 22 - Sat, Dec 6
United Airlines Logo
9:40 am - 11:44 pmSJO-SEA
16h 04m1 stop
United Airlines Logo
11:59 pm - 8:39 pmSEA-SJO
18h 40m1 stop
$420United Airlines
Find Deal
Wed, Apr 22 - Thu, May 7
Alaska Airlines Logo
12:20 am - 2:16 pmSJO-SEA
14h 56m1 stop
Alaska Airlines Logo
12:50 pm - 11:42 pmSEA-SJO
9h 52m1 stop
$442Alaska Airlines
Find Deal
Sun, Jan 25 - Sat, Jan 31
Alaska Airlines Logo
1:16 am - 3:44 pmSJO-SEA
16h 28m2 stops
Alaska Airlines Logo
9:45 pm - 12:01 amSEA-SJO
24h 16m2 stops
$445Alaska Airlines
Find Deal
Sat, Nov 22 - Sun, Dec 7
American Airlines Logo
6:22 am - 7:15 pmSJO-SEA
14h 53m1 stop
American Airlines Logo
12:31 am - 1:56 pmSEA-SJO
11h 25m2 stops
$466American Airlines
Find Deal
Mon, Dec 8 - Wed, Jan 28
American Airlines Logo
6:20 am - 11:38 pmSJO-SEA
19h 18m1 stop
American Airlines Logo
9:45 pm - 12:43 pmSEA-SJO
12h 58m2 stops
$474American Airlines
Find Deal
Sat, Nov 22 - Sun, Nov 30
Air Canada Logo
8:35 am - 10:16 pmSJO-SEA
15h 41m1 stop
Air Canada Logo
8:10 am - 10:55 pmSEA-SJO
12h 45m1 stop
$490Air Canada
Find Deal

Everything you should know

When to travel
October
Cheapest • 13% price drop
December
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Cheapest round-trip
$404
Overall average: $529
Multiple Airlines
Mon 2/2Sat 2/7
SJO - SEA • 1 stop
Cheapest non-stop
$1,922
Alaska Airlines
Sun 12/14Sat 12/20
LIR - SEA • Non-stop
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Seattle!
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?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights to Seattle, 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 to Seattle is October, where tickets cost $492 on average for one-way flights. On the other hand, the most expensive months are June and December, where the average cost of tickets from Costa Rica is $641 and $622 respectively. For return trips, the best month to travel is October with an average price of $492.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights to Seattle, 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, you should book around 0 weeks before departure. For the absolute cheapest price, our data suggests you should book 39 days before departure.

Good to know

Low seasonFebruary
Cheapest flight$209
Best time to beat the crowds with an average 12% drop in price.
Most popular time to fly with an average 14% 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 many cities have direct flights to Seattle?

    From Costa Rica, there are direct flights to Seattle from 1 city. This city is Liberia and there are 1 direct flights each week.

  • What is the cheapest day to fly to Seattle?

    Based on KAYAK data, the cheapest day to fly to Seattle is Wednesday where tickets can be as cheap as $581. On the other hand, the most expensive day to fly is Tuesday, where prices are $676 on average.

  • 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.

  • What is the cheapest time of day to fly to Seattle?

    The cheapest time of day to fly to Seattle is generally in the afternoon, when flights cost $619 on average. The most expensive time of day to fly to Seattle is generally at night, which is peak travel time and where the average cost of a ticket is $680.

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

    Each week there are around 4,513 direct flights from within Costa Rica to Seattle. The most common day for departures is Tuesday, with 15% 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 3 airlines serving from Costa Rica to Seattle

 
See real verified KAYAK customer reviews for airlines flying to Seattle. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline from Costa Rica to Seattle. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
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
Alaska AirlinesOverall score based on 11235 reviews
7.1Food
8.1Boarding
8.5Crew
7.8Comfort
7.0Entertainment
Airline reviews

I wish my checked suitcase could have been checked since I arrived an hour before take off .

6.0 GoodAnonymous, Nov 2025JFK - SEA
Read more Alaska Airlines reviews

I wish my checked suitcase could have been checked since I arrived an hour before take off .

The staff was so kind and friendly! Boarding was efficient and communication was timely. I would seek out flying with Alaska Airlines in the future.

The cabin crew on this team was particularly kind and excellent.

Check in went pretty well and you didn't lose my bag. After I got a drink from the drink cart they charged me for it, and at the crazy overpriced airport rates. Never had that happen before, is that an american thing? what madness.

In both halves of the trip (going and returning) there were problems. Not exactly Alaska's fault, but still really difficult. Outgoing flight was canceled and rebooked twice due to a total ground stop of all Alaska's flights. This required me to change airports with minimal notice and I almost missed my flight transferring to the other airport (which was roughly an hour and a half away). On the return, the first leg was delayed by an hour, and the second leg was delayed by nearly 3 hours. This was a rough set of flights and the communication about all of these changes was minimal. Crew did their best however, so no fault there. Other thing to remember is there is no food on Alaska flights unless you pre-order. Take that into account when you choose airlines.

My flight was canceled because of an IT outage, and they did not answer the phone for 8 hrs. There was no next flight out, I have missed my wedding because of this.

Liked the crew. Multiple delays. Altered my complete day and plans

Apart from the man snoring very loudly across the aisle from us for about 3.5 of the 5 hour flight it was a great flight. I couldn't get the internet to work and stay working. Texting was intermittent for me.

The plane boarded late and arrived late which wasn't really ideal.

The pretzels have no taste. How about a choice of snacks? The flight itself was fine.

7 hours delayed due to operational issues on United’s end. Basically laziness.

Short flight but an "eager to help" crew made the journey more enjoyable!

Not enough veg food available for passengers. I actually did not get the veg food and was told it was over, and I starved the entire flight duration.

Flight was delayed only slightly before takeoff due to traffic control. However, the flight arrived early to ORD. Good flight. United has been very reliable for me.

Flight left on time. Boarding was easy. Arrived to EWR 30 mins early. Luggage was deplaned in good time. Overall a very good experience.

Flight from Rome to SFO was excellent compared To our flight to Europe from SFO. The food was much tastier. You can see how UNITED is skimping, though. Instead of getting something mid flight you had to ask for it. It was not automatically served. There was a cookie at the end of the arrival meal, for example that tasted like it just came out of a box. They used to serve a little container of nuts, now … a tiny container of nuts, mixed with pretzels. This was business class that you really have to pay for! But this is minor complaints compared to the overall. My major complaint is the position of the even numbered seats by the windows. You have to turn around to see your window & the positioning as some other controls are harder to get at. This is compared to the odd number seat that are perfectly aligned.

The person I bought the ticket for didn’t make the flight.

Lately I like the planes have been exceptionally filthy. There’s lines of dust and dirt all across the ceiling in the vents, and the cracks in between the seats are literally full of food. It’s definitely not the quality of service that I was used to with United. I’m also very disappointed with the Wi-Fi! All I wanna do is knock out a few work jobs while I’m trapped in my seat And it spools so bad. They did provide me with a refund, but the process of getting that refund is so complicated. It’s unfortunate.

Another delayed flight. When the delays exceed the duration of the flight, it’s a problem.

Excellent flight. Smooth, efficient boarding. Quick flight. Arrived early at STL.

We loved the steward on the plane. He made the night enjoyable

I enjoyed the extra leg room compared to other airlines. The first stewards made my daughter’s birthday special by giving her an extra snack. Then the last one coming home from Chicago to Appleton made our night really enjoyable Thanks for making our trip enjoyable

The flight was smooth, the pilot kept us informed about delays and we arrived more of less on time

Flight delay was communicated before leaving for airport which caused it to be a non-event. Great flight and crew!

Did not get any refreshments. Crew was very nice but limited. Small seats

Wish some foods provided rather than just biscuit/cookie for flight more than 2 hours

Wish a flight with more than 2 hours with some snack rather than just cookie/biscuit.

The flight attendant, a black woman with curly hair who sat near Row 21, was wonderful and kind.

It was good..clean, comfy seat. Friendly warm welcoming crew. Was able to check my cabin luggage at the gate which I was able to pickup in a decent time from baggage claim. The app gave all updates from delays to baggage claim info. Overall smooth flight.

Nice comfortable flight from Barcelona back to the states. The premium economy offers the extra room we need for my husband. The food was good and our flight attendants were excellent.

Traveling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
Lynnwood
Centralia
Fife
Westport
Mukilteo
Lakewood
Lacey
Aberdeen
Poulsbo
Edmonds
Woodinville
Shoreline
DuPont
Monroe
Castle Rock
Edgewood

Everything you need to know for your flight to Seattle

Information on the airport you'll fly into in Seattle

Not what you’re looking for? Find thousands of other hotels, flights, car rentals and package deals with KAYAK.