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Cheap flights from Costa Rica to Seattle from $210

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Costa Rica to Seattle departing on 4/21. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Costa Rica to Seattle

Recent round-trip flight deals from Costa Rica to Seattle

Enter your travel dates to find the best prices.
Multiple Airlines Logo
5:05 am - 5:38 pm
SJO
-
SEA
13h 33m
2 stops
Multiple Airlines Logo
7:40 am - 11:15 pm
SEA
-
SJO
14h 35m
2 stops
$360Multiple Airlines
Mon, May 4 - Tue, May 12
Multiple Airlines Logo
6:00 am - 8:58 pm
SJO
-
SEA
16h 58m
1 stop
Multiple Airlines Logo
6:10 am - 11:15 pm
SEA
-
SJO
16h 05m
1 stop
$380Multiple Airlines
Tue, Mar 3 - Tue, Mar 10
Multiple Airlines Logo
6:00 am - 8:58 pm
SJO
-
SEA
16h 58m
2 stops
Multiple Airlines Logo
6:10 am - 11:15 pm
SEA
-
SJO
16h 05m
2 stops
$381Multiple Airlines
Tue, Mar 3 - Tue, Mar 10
Multiple Airlines Logo
4:35 pm - 10:16 am
SJO
-
SEA
18h 41m
1 stop
Multiple Airlines Logo
9:15 pm - 11:15 pm
SEA
-
SJO
25h 00m
1 stop
$383Multiple Airlines
Wed, May 6 - Mon, May 18
Multiple Airlines Logo
5:45 am - 8:22 pm
SJO
-
SEA
15h 37m
2 stops
Multiple Airlines Logo
9:02 am - 11:15 pm
SEA
-
SJO
13h 13m
2 stops
$389Multiple Airlines
Thu, May 14 - Sat, May 23
Multiple Airlines Logo
6:00 am - 7:58 pm
SJO
-
SEA
15h 58m
2 stops
Multiple Airlines Logo
6:10 am - 11:15 pm
SEA
-
SJO
16h 05m
2 stops
$390Multiple Airlines
Tue, Mar 3 - Tue, Mar 10
Multiple Airlines Logo
6:00 am - 10:44 am
SJO
-
SEA
30h 44m
2 stops
Multiple Airlines Logo
3:52 pm - 11:15 pm
SEA
-
SJO
30h 23m
2 stops
$391Multiple Airlines
Thu, Mar 5 - Mon, Mar 9
Multiple Airlines Logo
5:45 am - 8:22 pm
SJO
-
SEA
15h 37m
2 stops
Multiple Airlines Logo
9:02 am - 11:15 pm
SEA
-
SJO
13h 13m
2 stops
$393Multiple Airlines
Thu, May 14 - Sat, May 23
Alaska Airlines Logo
6:08 pm - 9:31 am
LIR
-
SEA
16h 23m
1 stop
Alaska Airlines Logo
2:43 pm - 6:36 am
SEA
-
LIR
14h 53m
2 stops
$472Alaska Airlines
Fri, Mar 13 - Mon, Mar 16
Alaska Airlines Logo
8:05 am - 10:43 pm
LIR
-
SEA
16h 38m
1 stop
Alaska Airlines Logo
2:43 pm - 6:36 am
SEA
-
LIR
14h 53m
2 stops
$482Alaska Airlines
Thu, Mar 5 - Mon, Mar 9

Alaska Airlines flights from Costa Rica to Seattle

Our best Alaska Airlines deals on Costa Rica to Seattle flight tickets
Alaska Airlines
Mar 13
LIR6:08 pmLiberia
16h 23m
1 stop
SEA9:31 amSeattle/Tacoma Intl
Mar 16
SEA2:43 pmSeattle/Tacoma Intl
14h 53m
2 stops
LIR6:36 amLiberia
$472
Alaska Airlines
Mar 5
LIR8:05 amLiberia
16h 38m
1 stop
SEA10:43 pmSeattle/Tacoma Intl
Mar 9
SEA2:43 pmSeattle/Tacoma Intl
14h 53m
2 stops
LIR6:36 amLiberia
$482
Alaska Airlines
Mar 11
LIR11:45 amLiberia
30h 12m
2 stops
SEA4:57 pmSeattle/Tacoma Intl
Mar 16
SEA7:45 amSeattle/Tacoma Intl
21h 51m
2 stops
LIR6:36 amLiberia
$492

American Airlines flights from Costa Rica to Seattle

Our best American Airlines deals on Costa Rica to Seattle flight tickets
American Airlines
Feb 17
SJO8:00 amSan José Juan Santamaria Intl
17h 40m
1 stop
SEA11:40 pmSeattle/Tacoma Intl
Mar 3
SEA10:08 pmSeattle/Tacoma Intl
13h 42m
1 stop
SJO1:50 pmSan José Juan Santamaria Intl
$514
American Airlines
Feb 12
SJO12:35 amSan José Juan Santamaria Intl
14h 18m
1 stop
SEA12:53 pmSeattle/Tacoma Intl
Feb 22
SEA6:44 amSeattle/Tacoma Intl
13h 59m
1 stop
SJO10:43 pmSan José Juan Santamaria Intl
$537
American Airlines
Feb 13
SJO11:24 amSan José Juan Santamaria Intl
15h 31m
2 stops
SEA12:55 amSeattle/Tacoma Intl
Feb 21
SEA12:59 amSeattle/Tacoma Intl
11h 54m
1 stop
SJO2:53 pmSan José Juan Santamaria Intl
$541

momondo Fare Finder

 
Customize your flight search to find flights from Costa Rica to Seattle that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated February 11, 2026.
Use the filters below to find and compare flights from Costa Rica to Seattle that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

San JoséSeattle

SJO - SEA

SJOSEA

San José Juan Santamaria Intl

Mon 5/4

5:05 am-5:38 pm

2 stops13h 33m

Seattle/Tacoma Intl

Tue 5/12

7:40 am-11:15 pm

2 stops14h 35m

$360

San JoséSeattle

SJO - SEA

SJOSEA

San José Juan Santamaria Intl

Tue 3/3

6:00 am-8:58 pm

1 stop16h 58m

Seattle/Tacoma Intl

Tue 3/10

6:10 am-11:15 pm

1 stop16h 05m

$380

San JoséSeattle

SJO - SEA

SJOSEA

San José Juan Santamaria Intl

Tue 3/3

6:00 am-8:58 pm

2 stops16h 58m

Seattle/Tacoma Intl

Tue 3/10

6:10 am-11:15 pm

2 stops16h 05m

$381

San JoséSeattle

SJO - SEA

SJOSEA

San José Juan Santamaria Intl

Wed 5/6

4:35 pm-10:16 am

1 stop18h 41m

Seattle/Tacoma Intl

Mon 5/18

9:15 pm-11:15 pm

1 stop25h 00m

$383

San JoséSeattle

SJO - SEA

SJOSEA

San José Juan Santamaria Intl

Thu 5/14

5:45 am-8:22 pm

2 stops15h 37m

Seattle/Tacoma Intl

Sat 5/23

9:02 am-11:15 pm

2 stops13h 13m

$389

San JoséSeattle

SJO - SEA

SJOSEA

San José Juan Santamaria Intl

Tue 3/3

6:00 am-7:58 pm

2 stops15h 58m

Seattle/Tacoma Intl

Tue 3/10

6:10 am-11:15 pm

2 stops16h 05m

$390

San JoséSeattle

SJO - SEA

SJOSEA

San José Juan Santamaria Intl

Thu 3/5

6:00 am-10:44 am

2 stops30h 44m

Seattle/Tacoma Intl

Mon 3/9

3:52 pm-11:15 pm

2 stops30h 23m

$391

San JoséSeattle

SJO - SEA

SJOSEA

San José Juan Santamaria Intl

Thu 5/14

5:45 am-8:22 pm

2 stops15h 37m

Seattle/Tacoma Intl

Sat 5/23

9:02 am-11:15 pm

2 stops13h 13m

$393

LiberiaSeattle

LIR - SEA

LIRSEA

Liberia

Fri 3/13

6:08 pm-9:31 am

1 stop16h 23m

Seattle/Tacoma Intl

Mon 3/16

2:43 pm-6:36 am

2 stops14h 53m

$472

LiberiaSeattle

LIR - SEA

LIRSEA

Liberia

Thu 3/5

8:05 am-10:43 pm

1 stop16h 38m

Seattle/Tacoma Intl

Mon 3/9

2:43 pm-6:36 am

2 stops14h 53m

$482

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Seattle from

How to get the cheapest flight ticket from Costa Rica to Seattle

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Seattle?

In general, October is the cheapest month to fly from Costa Rica to Seattle. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $459. If you don’t want to visit Seattle in October, then you should wait until September to fly from Costa Rica, when ticket prices are also cheap, with an average price of $492.

What is the cheapest Costa Rica to Seattle/Tacoma Intl flight route?

Fly from Liberia to Seattle/Tacoma Intl for the best Costa Rica - Seattle/Tacoma Intl flight prices

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

You are more likely to see cheaper flights to Seattle from Costa Rica when booking weeks ahead of your departure date. In general, you can expect to find flights to Seattle for around $540 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Seattle from Costa Rica for as low as $444 on momondo.

What cabin class options are available on Costa Rica to Seattle/Tacoma Intl flights?

There are 2 cabin classes available to choose from on Costa Rica to Seattle/Tacoma Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Costa Rica to Seattle flights?

You could potentially save up to 10% on your flight if you consider stops on a Costa Rica to Seattle flight.

Cheap Costa Rica to Seattle flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Costa Rica to Seattle

Fastest flight time

10h 39m

Direct flights

Mon

Airports in Seattle

1 airport
The fastest flight from Costa Rica to Seattle takes 10h 39m
Direct flights go from Costa Rica to Seattle on Monday. There are no airlines offering direct flights.
There is 1 airport in Seattle. From Costa Rica there are direct flights to Seattle/Tacoma Intl (SEA).
Search flight deals

  • When did momondo last update prices for flights from Costa Rica to Seattle/Tacoma Intl Airport?

    Prices for flights from Costa Rica to Seattle/Tacoma Intl Airport were last updated today.

  • How many operators does momondo search for flights from Costa Rica to Seattle/Tacoma Intl Airport?

  • How old do you have to be to fly from Costa Rica to Seattle/Tacoma Intl Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Costa Rica to Seattle/Tacoma Intl Airport.

  • What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?

    The necessary travel and health documents for your Seattle/Tacoma Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Costa Rica to Seattle?

Best airlines flying from Costa Rica to Seattle

Compare and see reviews for airlines that fly from Costa Rica to Seattle with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $376Free CancellationRating
7.2
11,266 reviews
Search American Airlines flights
United AirlinesPriceFrom $426Free CancellationRating
7.4
9,273 reviews
Search United Airlines flights
Alaska AirlinesPriceFrom $447Free CancellationRating
8.0
11,874 reviews
Search Alaska Airlines flights

Traveling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
Tacoma
Leavenworth
SeaTac
Ocean Shores
Renton
Olympia
Lynnwood
Kent
Marysville
Redmond
Puyallup
Cle Elum
Lakewood
Tukwila
Federal Way
Kirkland
Westport
Centralia
Fife
Tumwater

Why use momondo?

Why should I use momondo to find a flight deal from Costa Rica to Seattle?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Costa Rica to Seattle. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Costa Rica to Seattle with flexible booking policies on momondo?

Yes. momondo enables you to select and highlight flights to Seattle from Costa Rica with this policy.

How can momondo help me find flights from Costa Rica to Seattle?

momondo helps you find the best flight between Costa Rica and Seattle by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Costa Rica to Seattle right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Costa Rica to Seattle flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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