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Cheap flights from Costa Rica to Seattle from $271

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 5/11. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 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
5:45 am - 6:26 pm
SJO
-
SEA
13h 41m
2 stops
Multiple Airlines Logo
6:50 am - 11:15 pm
SEA
-
SJO
15h 25m
2 stops
$432Multiple Airlines
Tue, Sep 1 - Tue, Sep 8
Multiple Airlines Logo
5:45 am - 6:10 pm
SJO
-
SEA
13h 25m
1 stop
Multiple Airlines Logo
10:03 am - 11:15 pm
SEA
-
SJO
12h 12m
1 stop
$434Multiple Airlines
Tue, Jul 28 - Tue, Aug 11
Multiple Airlines Logo
5:45 am - 10:44 pm
SJO
-
SEA
17h 59m
1 stop
Multiple Airlines Logo
9:15 pm - 11:15 pm
SEA
-
SJO
25h 00m
1 stop
$440Multiple Airlines
Thu, May 21 - Wed, May 27
Multiple Airlines Logo
5:45 am - 6:10 pm
SJO
-
SEA
13h 25m
2 stops
Multiple Airlines Logo
10:03 am - 11:15 pm
SEA
-
SJO
12h 12m
2 stops
$442Multiple Airlines
Tue, Jul 28 - Tue, Aug 11
Multiple Airlines Logo
5:45 am - 3:32 pm
SJO
-
SEA
34h 47m
2 stops
Multiple Airlines Logo
7:07 pm - 11:15 pm
SEA
-
SJO
27h 08m
2 stops
$444Multiple Airlines
Sat, Aug 22 - Mon, Aug 31
Multiple Airlines Logo
5:45 am - 6:10 pm
SJO
-
SEA
13h 25m
2 stops
Multiple Airlines Logo
9:18 pm - 11:15 pm
SEA
-
SJO
24h 57m
2 stops
$449Multiple Airlines
Thu, Jul 23 - Mon, Aug 3
Multiple Airlines Logo
9:40 am - 10:57 am
SJO
-
SEA
26h 17m
2 stops
Multiple Airlines Logo
9:42 am - 11:15 pm
SEA
-
SJO
12h 33m
2 stops
$450Multiple Airlines
Fri, Sep 18 - Sat, Sep 26
Multiple Airlines Logo
4:35 pm - 4:11 pm
SJO
-
SEA
24h 36m
1 stop
Multiple Airlines Logo
9:42 am - 11:15 pm
SEA
-
SJO
12h 33m
1 stop
$451Multiple Airlines
Fri, Sep 18 - Sat, Sep 26
Alaska Airlines Logo
11:20 am - 10:52 pm
LIR
-
SEA
12h 32m
1 stop
Alaska Airlines Logo
8:25 am - 6:20 am
SEA
-
LIR
20h 55m
2 stops
$666Alaska Airlines
Thu, May 7 - Mon, May 11
Alaska Airlines Logo
11:20 am - 10:46 am
LIR
-
SEA
24h 26m
2 stops
Alaska Airlines Logo
7:05 am - 6:20 am
SEA
-
LIR
22h 15m
2 stops
$676Alaska Airlines
Thu, May 7 - Mon, May 11

Alaska Airlines flights from Costa Rica to Seattle

Our best Alaska Airlines deals on Costa Rica to Seattle flight tickets
Alaska Airlines
Apr 7
SJO1:03 amSan José Juan Santamaria Intl
15h 45m
2 stops
SEA3:48 pmSeattle/Tacoma Intl
Apr 13
SEA9:42 pmSeattle/Tacoma Intl
25h 11m
2 stops
SJO11:53 pmSan José Juan Santamaria Intl
$648
Alaska Airlines
May 7
LIR11:20 amLiberia
12h 32m
1 stop
SEA10:52 pmSeattle/Tacoma Intl
May 11
SEA8:25 amSeattle/Tacoma Intl
20h 55m
2 stops
LIR6:20 amLiberia
$666
Alaska Airlines
May 7
LIR11:20 amLiberia
24h 26m
2 stops
SEA10:46 amSeattle/Tacoma Intl
May 11
SEA7:05 amSeattle/Tacoma Intl
22h 15m
2 stops
LIR6:20 amLiberia
$676

American Airlines flights from Costa Rica to Seattle

Our best American Airlines deals on Costa Rica to Seattle flight tickets
American Airlines
Apr 8
SJO2:08 pmSan José Juan Santamaria Intl
11h 36m
1 stop
SEA12:44 amSeattle/Tacoma Intl
Apr 18
SEA5:00 pmSeattle/Tacoma Intl
19h 22m
1 stop
SJO1:22 pmSan José Juan Santamaria Intl
$588
American Airlines
Apr 15
SJO2:08 pmSan José Juan Santamaria Intl
11h 36m
1 stop
SEA12:44 amSeattle/Tacoma Intl
Apr 22
SEA6:00 amSeattle/Tacoma Intl
12h 07m
2 stops
SJO7:07 pmSan José Juan Santamaria Intl
$593
American Airlines
Apr 8
SJO2:08 pmSan José Juan Santamaria Intl
11h 36m
1 stop
SEA12:44 amSeattle/Tacoma Intl
Apr 12
SEA5:00 pmSeattle/Tacoma Intl
19h 23m
1 stop
SJO1:23 pmSan José Juan Santamaria Intl
$600

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 April 5, 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

Cheapest round-trip

San JoséSeattle

SJO - SEA

SJOSEA

San José Juan Santamaria Intl

Tue 9/1

5:45 am-6:26 pm

2 stops13h 41m

Seattle/Tacoma Intl

Tue 9/8

6:50 am-11:15 pm

2 stops15h 25m

$432
Quickest round-trip

San JoséSeattle

SJO - SEA

SJOSEA

San José Juan Santamaria Intl

Tue 7/28

5:45 am-6:10 pm

1 stop13h 25m

Seattle/Tacoma Intl

Tue 8/11

10:03 am-11:15 pm

1 stop12h 12m

$434

San JoséSeattle

SJO - SEA

SJOSEA

San José Juan Santamaria Intl

Thu 5/21

5:45 am-10:44 pm

1 stop17h 59m

Seattle/Tacoma Intl

Wed 5/27

9:15 pm-11:15 pm

1 stop25h 00m

$440

San JoséSeattle

SJO - SEA

SJOSEA

San José Juan Santamaria Intl

Tue 7/28

5:45 am-6:10 pm

2 stops13h 25m

Seattle/Tacoma Intl

Tue 8/11

10:03 am-11:15 pm

2 stops12h 12m

$442

San JoséSeattle

SJO - SEA

SJOSEA

San José Juan Santamaria Intl

Sat 8/22

5:45 am-3:32 pm

2 stops34h 47m

Seattle/Tacoma Intl

Mon 8/31

7:07 pm-11:15 pm

2 stops27h 08m

$444

San JoséSeattle

SJO - SEA

SJOSEA

San José Juan Santamaria Intl

Thu 7/23

5:45 am-6:10 pm

2 stops13h 25m

Seattle/Tacoma Intl

Mon 8/3

9:18 pm-11:15 pm

2 stops24h 57m

$449

San JoséSeattle

SJO - SEA

SJOSEA

San José Juan Santamaria Intl

Fri 9/18

9:40 am-10:57 am

2 stops26h 17m

Seattle/Tacoma Intl

Sat 9/26

9:42 am-11:15 pm

2 stops12h 33m

$450

San JoséSeattle

SJO - SEA

SJOSEA

San José Juan Santamaria Intl

Fri 9/18

4:35 pm-4:11 pm

1 stop24h 36m

Seattle/Tacoma Intl

Sat 9/26

9:42 am-11:15 pm

1 stop12h 33m

$451

LiberiaSeattle

LIR - SEA

LIRSEA

Liberia

Thu 5/7

11:20 am-10:52 pm

1 stop12h 32m

Seattle/Tacoma Intl

Mon 5/11

8:25 am-6:20 am

2 stops20h 55m

$666

LiberiaSeattle

LIR - SEA

LIRSEA

Liberia

Thu 5/7

11:20 am-10:46 am

2 stops24h 26m

Seattle/Tacoma Intl

Mon 5/11

7:05 am-6:20 am

2 stops22h 15m

$676

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 $452. 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 $481.

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 $545 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 $460 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 21% 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 32m

Direct flights

Mon

Airports in Seattle

1 airport
The fastest flight from Costa Rica to Seattle takes 10h 32m
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

Frequently asked questions about flying from Costa Rica to Seattle

  • 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
7.1
11,554 reviews
Search American Airlines flights
United AirlinesPriceFrom $416Free CancellationRating
7.4
9,546 reviews
Search United Airlines flights
Alaska AirlinesPriceFrom $447Free CancellationRating
7.9
12,174 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
Redmond
Kent
Marysville
Puyallup
Lakewood
Cle Elum
Tukwila
Federal Way
Centralia
Fife
Westport
Tumwater
Shoreline

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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