What is the cheapest airline that flies from Washington to Costa Rica?

United Airlines, American Airlines, and Southwest are the most popular carriers operating from Washington to Costa Rica

What airlines fly to Costa Rica?

United Airlines, American Airlines and Alaska Airlines are the top three most popular airlines that fly to Costa Rica from State of Washington according to our data. United Airlines is the first choice among our users, with 38% of people opting to fly with this airline when traveling to Costa Rica. Keep in mind that there are 7 different airlines that fly to Costa Rica on a routine basis, so you have a few additional options to choose from.

How long is the flight from State of Washington to Costa Rica?

Flight times vary depending on what airport in State of Washington you fly out of and what airport in Costa Rica you fly into. For example, flying from Seattle to San José takes 10h 10m on average. On the other hand, flying from Spokane to San José takes 12h 20m on average. Keep in mind that it’s always quicker to opt for a non-stop flight, so be sure to check momondo if there are any available for your route.

When did momondo last update prices for flights from Washington to Costa Rica?

Prices for flights from Washington to Costa Rica are refreshed on a daily basis.

How many operators does momondo search for flights from Washington to Costa Rica?

As of June 2026, there are 7 operators available to choose from for flights from Washington to Costa Rica.

How old do you have to be to fly from Washington to Costa Rica?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Washington to Costa Rica.

What documentation or ID do you need to fly to Costa Rica?

The necessary travel and health documents for your Costa Rica 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.

$151 Cheap Flights from Washington to Costa Rica in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Washington to Costa Rica

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

7:03 am - 11:15 pm

PDX

SJO

15h 12m

2 stops

5:45 am - 8:50 pm

SJO

PDX

16h 05m

2 stops

$405Multiple Airlines

Thu, Aug 27 - Tue, Sep 1

9:27 pm - 11:15 pm

PDX

SJO

24h 48m

2 stops

3:10 pm - 9:21 am

SJO

PDX

19h 11m

2 stops

$408Multiple Airlines

Mon, Aug 10 - Mon, Aug 17

7:10 am - 6:37 pm

PDX

LIR

9h 27m

1 stop

8:35 am - 11:11 pm

LIR

PDX

16h 36m

1 stop

$436United Airlines

Wed, Nov 4 - Fri, Nov 13

7:10 am - 6:37 pm

PDX

LIR

9h 27m

1 stop

8:35 am - 8:33 pm

LIR

PDX

13h 58m

2 stops

$441United Airlines

Tue, Nov 10 - Wed, Nov 18

8:00 am - 11:50 am

SEA

LIR

26h 50m

1 stop

1:55 pm - 2:37 pm

LIR

SEA

25h 42m

2 stops

$461Air Canada

Fri, Oct 16 - Sun, Oct 25

11:59 pm - 2:45 pm

PDX

LIR

12h 46m

1 stop

3:10 pm - 7:11 pm

LIR

PDX

30h 01m

1 stop

$461American Airlines

Sat, Dec 5 - Mon, Dec 14

12:45 pm - 11:59 am

GEG

SJO

22h 14m

2 stops

2:57 pm - 1:19 pm

SJO

GEG

23h 22m

2 stops

$475American Airlines

Wed, Sep 16 - Wed, Sep 23

2:10 pm - 6:00 am

SEA

SJO

14h 50m

2 stops

12:35 pm - 10:45 pm

SJO

SEA

11h 10m

1 stop

$522Southwest

Tue, Oct 6 - Tue, Oct 13

7:25 pm - 12:15 pm

SEA

SJO

15h 50m

2 stops

9:00 am - 11:05 pm

SJO

SEA

15h 05m

2 stops

$526Southwest

Fri, Aug 28 - Tue, Sep 1

8:00 am - 12:55 pm

SEA

LIR

27h 55m

1 stop

2:55 pm - 8:54 pm

LIR

SEA

31h 59m

1 stop

$544Air Canada

Sat, Oct 24 - Sun, Nov 1

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Delta flights from State of Washington to Costa Rica

Our best Delta deals on State of Washington to Costa Rica flight tickets

Delta

Oct 20

PDX5:45 pmPortland

17h 15m

2 stops

LIR12:00 pmLiberia

Oct 30

LIR1:25 pmLiberia

22h 13m

2 stops

PDX10:38 amPortland

$551

Delta

Nov 9

GEG10:45 pmSpokane

12h 20m

1 stop

SJO1:05 pmSan José Juan Santamaria Intl

Nov 14

SJO7:00 amSan José Juan Santamaria Intl

18h 42m

2 stops

GEG11:42 pmSpokane

$563

Delta

Nov 9

GEG10:45 pmSpokane

12h 20m

1 stop

SJO1:05 pmSan José Juan Santamaria Intl

Nov 14

SJO7:00 amSan José Juan Santamaria Intl

18h 42m

2 stops

GEG11:42 pmSpokane

$573

American Airlines flights from State of Washington to Costa Rica

Our best American Airlines deals on State of Washington to Costa Rica flight tickets

American Airlines

Nov 23

PDX5:30 amPortland

15h 29m

1 stop

SJO10:59 pmSan José Juan Santamaria Intl

Dec 2

SJO6:20 amSan José Juan Santamaria Intl

18h 36m

1 stop

PDX10:56 pmPortland

$344

American Airlines

Sep 28

PDX11:06 pmPortland

20h 01m

2 stops

SJO8:07 pmSan José Juan Santamaria Intl

Oct 1

SJO6:00 amSan José Juan Santamaria Intl

18h 23m

2 stops

PDX11:23 pmPortland

$349

American Airlines

Sep 16

GEG12:45 pmSpokane

22h 14m

2 stops

SJO11:59 amSan José Juan Santamaria Intl

Sep 23

SJO6:00 amSan José Juan Santamaria Intl

15h 25m

2 stops

GEG8:25 pmSpokane

$413

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

PortlandSan José

PDX - SJO

PDXSJO

Portland

Thu 8/27

7:03 am-11:15 pm

2 stops15h 12m

San José Juan Santamaria Intl

Tue 9/1

5:45 am-8:50 pm

2 stops16h 05m

$405

PortlandSan José

PDX - SJO

PDXSJO

Portland

Mon 8/10

9:27 pm-11:15 pm

2 stops24h 48m

San José Juan Santamaria Intl

Mon 8/17

3:10 pm-9:21 am

2 stops19h 11m

$408

PortlandLiberia

PDX - LIR

PDXLIR

Portland

Wed 11/4

7:10 am-6:37 pm

1 stop9h 27m

Liberia

Fri 11/13

8:35 am-11:11 pm

1 stop16h 36m

$436

Quickest round-trip

PortlandLiberia

PDX - LIR

PDXLIR

Portland

Tue 11/10

7:10 am-6:37 pm

1 stop9h 27m

Liberia

Wed 11/18

8:35 am-8:33 pm

2 stops13h 58m

$441

SeattleLiberia

SEA - LIR

SEALIR

Seattle/Tacoma Intl

Fri 10/16

8:00 am-11:50 am

1 stop26h 50m

Liberia

Sun 10/25

1:55 pm-2:37 pm

2 stops25h 42m

$461

PortlandLiberia

PDX - LIR

PDXLIR

Portland

Sat 12/5

11:59 pm-2:45 pm

1 stop12h 46m

Liberia

Mon 12/14

3:10 pm-7:11 pm

1 stop30h 01m

$461

SpokaneSan José

GEG - SJO

GEGSJO

Spokane

Wed 9/16

12:45 pm-11:59 am

2 stops22h 14m

San José Juan Santamaria Intl

Wed 9/23

2:57 pm-1:19 pm

2 stops23h 22m

$475

SeattleSan José

SEA - SJO

SEASJO

Seattle/Tacoma Intl

Tue 10/6

2:10 pm-6:00 am

2 stops14h 50m

San José Juan Santamaria Intl

Tue 10/13

12:35 pm-10:45 pm

1 stop11h 10m

$522

SeattleSan José

SEA - SJO

SEASJO

Seattle/Tacoma Intl

Fri 8/28

7:25 pm-12:15 pm

2 stops15h 50m

San José Juan Santamaria Intl

Tue 9/1

9:00 am-11:05 pm

2 stops15h 05m

$526

SeattleLiberia

SEA - LIR

SEALIR

Seattle/Tacoma Intl

Sat 10/24

8:00 am-12:55 pm

1 stop27h 55m

Liberia

Sun 11/1

2:55 pm-8:54 pm

1 stop31h 59m

$544

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from State of Washington to Costa Rica

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

Prices

Airlines

Other information

What is the cheapest month to fly to Costa Rica?

The cheapest month to fly to Costa Rica from State of Washington is in March. Flight prices, which tend to average around $142, are often lower during this time because this is during the off-season. If you’re not able to fly to Costa Rica in March, then December is your next best option. Flight prices from State of Washington to Costa Rica during December average around $166.

What is the cheapest Washington to Costa Rica flight route?

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

How far in advance should I book a flight from Washington to Costa Rica?

You are more likely to see cheaper flights to Costa Rica from State of Washington when booking weeks ahead of your departure date. In general, you can expect to find flights to Costa Rica for around $645 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Costa Rica from State of Washington for as low as $590 on momondo.

What cabin class options are available on State of Washington to Costa Rica flights?

There are 2 cabin classes available to choose from on State of Washington to Costa Rica 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 State of Washington to Costa Rica flights?

You could potentially save up to 29% on your flight if you consider stops on a State of Washington to Costa Rica flight.

Cheap State of Washington to Costa Rica flight deals and tips

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

Fastest flight time	6h 58m
Direct flights	Sun
Airports in Costa Rica	40 airports

The fastest flight from State of Washington to Costa Rica takes 6h 58m

Direct flights go from State of Washington to Costa Rica on Sunday. There are no airlines offering direct flights.

There are 40 airports in Costa Rica. From State of Washington there are direct flights to Liberia (LIR).

Search flight deals

Frequently asked questions about flying from Washington to Costa Rica

When did momondo last update prices for flights from Washington to Costa Rica?
Prices for flights from Washington to Costa Rica are refreshed on a daily basis.
How many operators does momondo search for flights from Washington to Costa Rica?
As of June 2026, there are 7 operators available to choose from for flights from Washington to Costa Rica.
How old do you have to be to fly from Washington to Costa Rica?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Washington to Costa Rica.
What documentation or ID do you need to fly to Costa Rica?
The necessary travel and health documents for your Costa Rica 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 State of Washington to Costa Rica?
momondo data reveals that the most frequently booked plane model on the route from State of Washington to Costa Rica is Boeing 737 MAX 8, representing 100.00% of all bookings.

Best airlines flying from State of Washington to Costa Rica

Compare and see reviews for airlines that fly from State of Washington to Costa Rica with momondo

Airline	Rating	Free Cancellation	Price
American Airlines	PriceFrom $287	Free Cancellation	Rating 7.1 11,640 reviews	Search American Airlines flights
United Airlines	PriceFrom $297	Free Cancellation	Rating 7.4 9,781 reviews	Search United Airlines flights
Alaska Airlines	PriceFrom $311	Free Cancellation	Rating 7.9 12,481 reviews	Search Alaska Airlines flights
Delta	PriceFrom $345	Free Cancellation	Rating 7.9 8,395 reviews	Search Delta flights
JetBlue	PriceFrom $362	Free Cancellation	Rating 7.1 2,977 reviews	Search JetBlue flights
Southwest	PriceFrom $500	Free Cancellation	Rating 7.9 4,249 reviews	Search Southwest flights
Aeromexico	PriceFrom $766	Free Cancellation	Rating 7.4 1,492 reviews	Search Aeromexico flights

Why use momondo?

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

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

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

Yes. All flights to Costa Rica from Washington on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

momondo helps you find the best flight between Washington and Costa Rica 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 Washington to Costa Rica right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Washington to Costa Rica 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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Flights to San Joséfrom $290

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Cheap flights from Washington to Costa Rica from $194

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington to Costa Rica departing on 10/24. 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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Delta flights from State of Washington to Costa Rica

Our best Delta deals on State of Washington to Costa Rica flight tickets

American Airlines flights from State of Washington to Costa Rica

Our best American Airlines deals on State of Washington to Costa Rica flight tickets

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How to get the cheapest flight ticket from State of Washington to Costa Rica

What is the cheapest month to fly to Costa Rica?

What is the cheapest Washington to Costa Rica flight route?

How far in advance should I book a flight from Washington to Costa Rica?

What cabin class options are available on State of Washington to Costa Rica flights?

Can stopping save me money on State of Washington to Costa Rica flights?

What is the cheapest airline that flies from Washington to Costa Rica?

What airlines fly to Costa Rica?

How long is the flight from State of Washington to Costa Rica?

Cheap State of Washington to Costa Rica flight deals and tips

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

Fastest flight time

Direct flights

Airports in Costa Rica

Frequently asked questions about flying from Washington to Costa Rica

Best airlines flying from State of Washington to Costa Rica

Compare and see reviews for airlines that fly from State of Washington to Costa Rica with momondo

Why use momondo?

An easier way to manage your Costa Rica 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.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Costa Rica

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Popular flights according to clicks in the last 7 days on momondo

State of Washington flight routes

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Fly your favorite airline to Costa Rica

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Cabin classes currently available on flights to Costa Rica

List of cabin classes available on flights landing in Costa Rica. Availability may vary depending on flight origin and airline.

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