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Cheap flights from Costa Rica to Seattle from $229

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 7/5. 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.
Southwest Logo
12:35 pm - 10:45 pm
SJO
-
SEA
11h 10m
1 stop
Southwest Logo
8:30 pm - 6:25 am
SEA
-
SJO
8h 55m
1 stop
$574Southwest
Wed, Oct 14 - Sun, Oct 18
Multiple Airlines Logo
7:45 am - 9:54 pm
SJO
-
SEA
15h 09m
1 stop
Multiple Airlines Logo
1:59 pm - 8:30 am
SEA
-
SJO
17h 31m
2 stops
$575Multiple Airlines
Fri, Oct 16 - Wed, Oct 21
Southwest Logo
1:20 pm - 1:15 am
SJO
-
SEA
13h 55m
1 stop
Southwest Logo
9:25 pm - 12:20 pm
SEA
-
SJO
12h 55m
2 stops
$578Southwest
Fri, Nov 6 - Mon, Nov 9
Multiple Airlines Logo
5:45 am - 8:05 pm
SJO
-
SEA
16h 20m
1 stop
Multiple Airlines Logo
6:00 am - 11:15 pm
SEA
-
SJO
15h 15m
1 stop
$582Multiple Airlines
Sun, Nov 1 - Fri, Nov 6
Multiple Airlines Logo
7:45 am - 10:00 pm
SJO
-
SEA
15h 15m
1 stop
Multiple Airlines Logo
7:26 am - 11:15 pm
SEA
-
SJO
14h 49m
2 stops
$584Multiple Airlines
Wed, Jul 22 - Sat, Aug 1
JetBlue Logo
1:25 pm - 11:59 pm
SJO
-
SEA
11h 34m
1 stop
JetBlue Logo
10:35 pm - 11:54 am
SEA
-
SJO
12h 19m
1 stop
$601JetBlue
Sat, Sep 19 - Thu, Oct 1
United Airlines Logo
3:27 pm - 9:18 pm
LIR
-
SEA
30h 51m
1 stop
United Airlines Logo
1:30 pm - 9:50 am
SEA
-
LIR
19h 20m
2 stops
$713United Airlines
Thu, Jul 16 - Tue, Jul 21
United Airlines Logo
1:20 pm - 10:40 pm
LIR
-
SEA
10h 20m
1 stop
United Airlines Logo
11:59 pm - 5:37 pm
SEA
-
LIR
16h 38m
1 stop
$722United Airlines
Fri, Oct 23 - Sat, Oct 24
Alaska Airlines Logo
10:00 am - 12:04 am
LIR
-
SEA
16h 04m
1 stop
Alaska Airlines Logo
7:00 am - 6:55 pm
SEA
-
LIR
9h 55m
1 stop
$732Alaska Airlines
Fri, Nov 6 - Tue, Nov 10
American Airlines Logo
2:15 pm - 11:39 pm
LIR
-
SEA
10h 24m
1 stop
American Airlines Logo
5:40 pm - 1:42 pm
SEA
-
LIR
19h 02m
1 stop
$769American Airlines
Fri, Jul 17 - Wed, Jul 22

Southwest flights from Costa Rica to Seattle

Our best Southwest deals on Costa Rica to Seattle flight tickets
Southwest
Oct 14
SJO12:35 pmSan José Juan Santamaria Intl
11h 10m
1 stop
SEA10:45 pmSeattle/Tacoma Intl
Oct 18
SEA8:30 pmSeattle/Tacoma Intl
8h 55m
1 stop
SJO6:25 amSan José Juan Santamaria Intl
$574
Southwest
Nov 6
SJO1:20 pmSan José Juan Santamaria Intl
13h 55m
1 stop
SEA1:15 amSeattle/Tacoma Intl
Nov 9
SEA9:25 pmSeattle/Tacoma Intl
12h 55m
2 stops
SJO12:20 pmSan José Juan Santamaria Intl
$578
Southwest
Aug 28
SJO9:00 amSan José Juan Santamaria Intl
12h 45m
2 stops
SEA8:45 pmSeattle/Tacoma Intl
Sep 11
SEA6:15 pmSeattle/Tacoma Intl
17h 00m
2 stops
SJO12:15 pmSan José Juan Santamaria Intl
$618

Delta flights from Costa Rica to Seattle

Our best Delta deals on Costa Rica to Seattle flight tickets
Delta
Oct 22
SJO1:23 pmSan José Juan Santamaria Intl
11h 46m
1 stop
SEA12:09 amSeattle/Tacoma Intl
Nov 3
SEA11:35 pmSeattle/Tacoma Intl
11h 23m
1 stop
SJO12:58 pmSan José Juan Santamaria Intl
$632
Delta
Oct 22
SJO1:23 pmSan José Juan Santamaria Intl
11h 46m
1 stop
SEA12:09 amSeattle/Tacoma Intl
Nov 3
SEA11:35 pmSeattle/Tacoma Intl
11h 23m
1 stop
SJO12:58 pmSan José Juan Santamaria Intl
$653

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 June 6, 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
Quickest round-trip

San JoséSeattle

SJO - SEA

SJOSEA

San José Juan Santamaria Intl

Wed 10/14

12:35 pm-10:45 pm

1 stop11h 10m

Seattle/Tacoma Intl

Sun 10/18

8:30 pm-6:25 am

1 stop8h 55m

$574

San JoséSeattle

SJO - SEA

SJOSEA

San José Juan Santamaria Intl

Fri 10/16

7:45 am-9:54 pm

1 stop15h 09m

Seattle/Tacoma Intl

Wed 10/21

1:59 pm-8:30 am

2 stops17h 31m

$575

San JoséSeattle

SJO - SEA

SJOSEA

San José Juan Santamaria Intl

Fri 11/6

1:20 pm-1:15 am

1 stop13h 55m

Seattle/Tacoma Intl

Mon 11/9

9:25 pm-12:20 pm

2 stops12h 55m

$578

San JoséSeattle

SJO - SEA

SJOSEA

San José Juan Santamaria Intl

Sun 11/1

5:45 am-8:05 pm

1 stop16h 20m

Seattle/Tacoma Intl

Fri 11/6

6:00 am-11:15 pm

1 stop15h 15m

$582

San JoséSeattle

SJO - SEA

SJOSEA

San José Juan Santamaria Intl

Wed 7/22

7:45 am-10:00 pm

1 stop15h 15m

Seattle/Tacoma Intl

Sat 8/1

7:26 am-11:15 pm

2 stops14h 49m

$584

San JoséSeattle

SJO - SEA

SJOSEA

San José Juan Santamaria Intl

Sat 9/19

1:25 pm-11:59 pm

1 stop11h 34m

Seattle/Tacoma Intl

Thu 10/1

10:35 pm-11:54 am

1 stop12h 19m

$601

LiberiaSeattle

LIR - SEA

LIRSEA

Liberia

Thu 7/16

3:27 pm-9:18 pm

1 stop30h 51m

Seattle/Tacoma Intl

Tue 7/21

1:30 pm-9:50 am

2 stops19h 20m

$713

LiberiaSeattle

LIR - SEA

LIRSEA

Liberia

Fri 10/23

1:20 pm-10:40 pm

1 stop10h 20m

Seattle/Tacoma Intl

Sat 10/24

11:59 pm-5:37 pm

1 stop16h 38m

$722

LiberiaSeattle

LIR - SEA

LIRSEA

Liberia

Fri 11/6

10:00 am-12:04 am

1 stop16h 04m

Seattle/Tacoma Intl

Tue 11/10

7:00 am-6:55 pm

1 stop9h 55m

$732

LiberiaSeattle

LIR - SEA

LIRSEA

Liberia

Fri 7/17

2:15 pm-11:39 pm

1 stop10h 24m

Seattle/Tacoma Intl

Wed 7/22

5:40 pm-1:42 pm

1 stop19h 02m

$769

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, March 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 $216. If you don’t want to visit Seattle in March, then you should wait until December to fly from Costa Rica, when ticket prices are also cheap, with an average price of $240.

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 from Costa Rica 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 $561 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 $477 on momondo.

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

There are 2 cabin classes available to choose from on Costa Rica to Seattle 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 5% 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

11h 40m

Direct flights

Mon

Airports in Seattle

1 airport
The fastest flight from Costa Rica to Seattle takes 11h 40m
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
11,652 reviews
Search American Airlines flights
United AirlinesPriceFrom $426Free CancellationRating
7.4
9,780 reviews
Search United Airlines flights
SouthwestPriceFrom $440Free CancellationRating
8.0
4,256 reviews
Search Southwest flights
Alaska AirlinesPriceFrom $460Free CancellationRating
7.9
12,469 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
Lakewood
Tukwila
Puyallup
Marysville
Cle Elum
Federal Way
Fife
Centralia
Shoreline
Westport
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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