Latest deals
Insights
FAQs
Reviews
Price Alerts

Cheap flights from Costa Rica to Seattle from $182

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 1/21. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

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.
American Airlines Logo
3:23 pm - 9:37 am
LIR
-
SEA
20h 14m1 stop
American Airlines Logo
12:45 pm - 12:37 pm
SEA
-
LIR
21h 52m1 stop
$370American Airlines
Tue, Jan 13 - Tue, Jan 20
American Airlines Logo
3:14 pm - 11:01 am
LIR
-
SEA
21h 47m2 stops
American Airlines Logo
9:45 pm - 2:13 pm
SEA
-
LIR
14h 28m2 stops
$374American Airlines
Tue, Jan 13 - Tue, Jan 20
United Airlines Logo
8:35 am - 10:59 pm
LIR
-
SEA
16h 24m1 stop
United Airlines Logo
7:00 am - 6:37 pm
SEA
-
LIR
9h 37m1 stop
$375United Airlines
Thu, Jan 22 - Mon, Jan 26
United Airlines Logo
8:35 am - 9:12 pm
LIR
-
SEA
14h 37m2 stops
United Airlines Logo
12:24 pm - 1:10 pm
SEA
-
LIR
22h 46m2 stops
$379United Airlines
Thu, Jan 22 - Mon, Jan 26
Multiple Airlines Logo
6:10 am - 10:52 pm
SJO
-
SEA
17h 42m1 stop
Multiple Airlines Logo
9:00 am - 11:15 pm
SEA
-
SJO
13h 15m1 stop
$382Multiple Airlines
Thu, Apr 30 - Sat, May 9
Multiple Airlines Logo
7:45 am - 10:29 pm
SJO
-
SEA
16h 44m1 stop
Multiple Airlines Logo
6:53 pm - 11:15 pm
SEA
-
SJO
26h 22m2 stops
$385Multiple Airlines
Tue, Jan 20 - Mon, Jan 26
Multiple Airlines Logo
10:45 pm - 2:57 pm
SJO
-
SEA
18h 12m2 stops
Multiple Airlines Logo
6:53 pm - 8:40 am
SEA
-
SJO
11h 47m2 stops
$386Multiple Airlines
Fri, Jan 23 - Sun, Feb 1
United Airlines Logo
6:30 am - 9:12 pm
SJO
-
SEA
16h 42m2 stops
United Airlines Logo
6:45 am - 8:39 pm
SEA
-
SJO
11h 54m1 stop
$387United Airlines
Mon, Feb 9 - Tue, Feb 17
Multiple Airlines Logo
3:05 pm - 9:57 am
SJO
-
SEA
19h 52m2 stops
Multiple Airlines Logo
7:00 am - 11:15 pm
SEA
-
SJO
15h 15m2 stops
$391Multiple Airlines
Fri, May 1 - Wed, May 20
Air Canada Logo
3:45 pm - 2:31 pm
LIR
-
SEA
24h 46m2 stops
Air Canada Logo
9:55 am - 2:45 pm
SEA
-
LIR
26h 50m2 stops
$468Air Canada
Thu, Jan 22 - Mon, Jan 26

American Airlines flights from Costa Rica to Seattle

Our best American Airlines deals on Costa Rica to Seattle flight tickets
American Airlines
Jan 13
LIR3:23 pmLiberia
20h 14m
1 stop
SEA9:37 amSeattle/Tacoma Intl
Jan 20
SEA12:45 pmSeattle/Tacoma Intl
21h 52m
1 stop
LIR12:37 pmLiberia
$370
Find similar
American Airlines
Jan 13
LIR3:23 pmLiberia
20h 14m
1 stop
SEA9:37 amSeattle/Tacoma Intl
Jan 20
SEA9:45 pmSeattle/Tacoma Intl
14h 28m
2 stops
LIR2:13 pmLiberia
$374
Find similar
American Airlines
Feb 2
LIR3:23 pmLiberia
20h 14m
1 stop
SEA9:37 amSeattle/Tacoma Intl
Feb 9
SEA9:45 pmSeattle/Tacoma Intl
12h 52m
1 stop
LIR12:37 pmLiberia
$396
Find similar

United Airlines flights from Costa Rica to Seattle

Our best United Airlines deals on Costa Rica to Seattle flight tickets
United Airlines
Jan 22
LIR8:35 amLiberia
16h 24m
1 stop
SEA10:59 pmSeattle/Tacoma Intl
Jan 26
SEA7:00 amSeattle/Tacoma Intl
9h 37m
1 stop
LIR6:37 pmLiberia
$375
Find similar
United Airlines
Jan 22
LIR8:35 amLiberia
14h 37m
2 stops
SEA9:12 pmSeattle/Tacoma Intl
Jan 26
SEA12:24 pmSeattle/Tacoma Intl
22h 46m
2 stops
LIR1:10 pmLiberia
$379
Find similar
United Airlines
Dec 25
SJO6:40 amSan José Juan Santamaria Intl
16h 27m
2 stops
SEA9:07 pmSeattle/Tacoma Intl
Jan 8
SEA12:35 pmSeattle/Tacoma Intl
17h 57m
1 stop
SJO8:32 amSan José Juan Santamaria Intl
$382
Find similar

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 December 21, 2025.
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

LiberiaSeattle

LIR - SEA

LIRSEA

Liberia

Tue 1/13

3:23 pm-9:37 am

1 stop20h 14m

Seattle/Tacoma Intl

Tue 1/20

12:45 pm-12:37 pm

1 stop21h 52m

$370

LiberiaSeattle

LIR - SEA

LIRSEA

Liberia

Tue 1/13

3:14 pm-11:01 am

2 stops21h 47m

Seattle/Tacoma Intl

Tue 1/20

9:45 pm-2:13 pm

2 stops14h 28m

$374

LiberiaSeattle

LIR - SEA

LIRSEA

Liberia

Thu 1/22

8:35 am-10:59 pm

1 stop16h 24m

Seattle/Tacoma Intl

Mon 1/26

7:00 am-6:37 pm

1 stop9h 37m

$375

LiberiaSeattle

LIR - SEA

LIRSEA

Liberia

Thu 1/22

8:35 am-9:12 pm

2 stops14h 37m

Seattle/Tacoma Intl

Mon 1/26

12:24 pm-1:10 pm

2 stops22h 46m

$379

San JoséSeattle

SJO - SEA

SJOSEA

San José Juan Santamaria Intl

Thu 4/30

6:10 am-10:52 pm

1 stop17h 42m

Seattle/Tacoma Intl

Sat 5/9

9:00 am-11:15 pm

1 stop13h 15m

$382

San JoséSeattle

SJO - SEA

SJOSEA

San José Juan Santamaria Intl

Tue 1/20

7:45 am-10:29 pm

1 stop16h 44m

Seattle/Tacoma Intl

Mon 1/26

6:53 pm-11:15 pm

2 stops26h 22m

$385

San JoséSeattle

SJO - SEA

SJOSEA

San José Juan Santamaria Intl

Fri 1/23

10:45 pm-2:57 pm

2 stops18h 12m

Seattle/Tacoma Intl

Sun 2/1

6:53 pm-8:40 am

2 stops11h 47m

$386

San JoséSeattle

SJO - SEA

SJOSEA

San José Juan Santamaria Intl

Mon 2/9

6:30 am-9:12 pm

2 stops16h 42m

Seattle/Tacoma Intl

Tue 2/17

6:45 am-8:39 pm

1 stop11h 54m

$387

San JoséSeattle

SJO - SEA

SJOSEA

San José Juan Santamaria Intl

Fri 5/1

3:05 pm-9:57 am

2 stops19h 52m

Seattle/Tacoma Intl

Wed 5/20

7:00 am-11:15 pm

2 stops15h 15m

$391

LiberiaSeattle

LIR - SEA

LIRSEA

Liberia

Thu 1/22

3:45 pm-2:31 pm

2 stops24h 46m

Seattle/Tacoma Intl

Mon 1/26

9:55 am-2:45 pm

2 stops26h 50m

$468

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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 $476. 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 $513.

What is the cheapest day to depart on your flight to Seattle?

On average, the least expensive day to fly to Seattle from Costa Rica is on a Wednesday. momondo users have found tickets for Wednesday departures for as low as $582. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Monday is the most expensive day to depart from Costa Rica because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $683.

What is the cheapest time of day to depart on your flight to Seattle?

Flying to Seattle from Costa Rica at noon is the least expensive time of day to depart. momondo users have found prices as low as $619 when looking at flights departing at noon. Flights to Seattle are more costly in the evening, with an average ticket price of $680. Departure times in the evening fall within the peak daily travel times, which is why tickets can be more expensive.

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 $553 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 $445 on momondo.

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

There are 3 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 23% 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

13h 27m

Direct flights

Mon

Airports in Seattle

1 airport
The fastest flight from Costa Rica to Seattle takes 13h 27m
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 $398Free CancellationRating
7.2
11,051 reviews
Search American Airlines flights
United AirlinesPriceFrom $426Free CancellationRating
7.4
9,100 reviews
Search United Airlines flights
Alaska AirlinesPriceFrom $431Free CancellationRating
8.0
11,496 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
Puyallup
Redmond
Tukwila
Cle Elum
Federal Way
Lakewood
Fife
Centralia
Westport
Kirkland
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.

An easier way to manage your Seattle trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Tue 1/20
Tue 1/27
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to the United States