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

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

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, San José Province takes 9h 09m on average. On the other hand, flying from Spokane to San José, San José Province takes 16h 10m 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.

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 34% of people opting to fly with this airline when traveling to Costa Rica. Keep in mind that there are 9 different airlines that fly to Costa Rica on a routine basis, so you have a few additional options to choose from.

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 July 2025, there are 9 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.

$122 Cheap Flights from Washington to Costa Rica in 2025

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Find the cheapest flights from Washington to Costa Rica

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

12:33 pm - 11:51 pmPDX-SJO

10h 18m1 stop

1:58 am - 11:35 amSJO-PDX

11h 37m1 stop

$276Alaska Airlines

Find Deal

Thu, Oct 30 - Thu, Nov 13

7:04 am - 7:37 pmPDX-SJO

11h 33m1 stop

1:30 pm - 12:45 amSJO-PDX

12h 15m2 stops

$280United Airlines

Find Deal

Tue, Sep 9 - Tue, Sep 16

11:58 pm - 10:01 pmPDX-SJO

21h 03m1 stop

6:00 am - 8:18 pmSJO-PDX

16h 18m2 stops

$287American Airlines

Find Deal

Sat, Nov 1 - Wed, Nov 12

6:04 am - 10:15 pmPDX-SJO

14h 11m1 stop

7:00 am - 7:18 pmSJO-PDX

14h 18m1 stop

$316Delta

Find Deal

Mon, Jan 19 - Thu, Jan 29

6:04 am - 10:15 pmPDX-SJO

14h 11m1 stop

7:00 am - 10:22 pmSJO-PDX

17h 22m2 stops

$320Delta

Find Deal

Mon, Jan 19 - Thu, Jan 29

9:56 pm - 11:49 amPDX-LIR

12h 53m2 stops

2:02 pm - 9:55 amLIR-PDX

20h 53m2 stops

$337American Airlines

Find Deal

Sat, Sep 27 - Sat, Oct 4

12:07 pm - 11:14 amPDX-SJO

22h 07m2 stops

12:19 pm - 7:23 pmSJO-PDX

32h 04m3 stops

$337Spirit Airlines

Find Deal

Tue, Sep 9 - Tue, Sep 16

12:07 pm - 10:27 amPDX-SJO

21h 20m3 stops

12:19 pm - 7:23 pmSJO-PDX

32h 04m3 stops

$382Spirit Airlines

Find Deal

Tue, Sep 9 - Tue, Sep 16

9:05 am - 7:40 amSEA-SJO

21h 35m2 stops

4:20 pm - 11:43 amSJO-SEA

20h 23m2 stops

$384

Find Deal

Mon, Sep 1 - Mon, Sep 8

9:55 am - 3:45 amSEA-SJO

15h 50m1 stop

4:40 pm - 8:10 pmSJO-SEA

29h 30m2 stops

$405

Find Deal

Mon, Jan 26 - Mon, Feb 2

Alaska Airlines flights from State of Washington to Costa Rica

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

Alaska Airlines

Oct 30

PDX12:33 pmPortland

10h 18m

1 stop

SJO11:51 pmSan José Juan Santamaria Intl

Nov 13

SJO1:58 amSan José Juan Santamaria Intl

11h 37m

1 stop

PDX11:35 amPortland

$276

Find similar

Alaska Airlines

Oct 29

PDX5:55 pmPortland

28h 56m

1 stop

SJO11:51 pmSan José Juan Santamaria Intl

Nov 13

SJO1:58 amSan José Juan Santamaria Intl

11h 37m

1 stop

PDX11:35 amPortland

$282

Find similar

Alaska Airlines

Jan 22

PDX7:30 amPortland

13h 30m

1 stop

SJO11:00 pmSan José Juan Santamaria Intl

Jan 28

SJO2:26 amSan José Juan Santamaria Intl

16h 02m

1 stop

PDX4:28 pmPortland

$296

Find similar

Delta flights from State of Washington to Costa Rica

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

Delta

Jan 19

PDX6:04 amPortland

14h 11m

1 stop

SJO10:15 pmSan José Juan Santamaria Intl

Jan 29

SJO7:00 amSan José Juan Santamaria Intl

14h 18m

1 stop

PDX7:18 pmPortland

$316

Find similar

Delta

Jan 19

PDX6:04 amPortland

14h 11m

1 stop

SJO10:15 pmSan José Juan Santamaria Intl

Jan 29

SJO7:00 amSan José Juan Santamaria Intl

17h 22m

2 stops

PDX10:22 pmPortland

$320

Find similar

Delta

Oct 29

PDX10:10 pmPortland

12h 46m

1 stop

SJO11:56 amSan José Juan Santamaria Intl

Nov 14

SJO7:00 amSan José Juan Santamaria Intl

17h 32m

1 stop

PDX10:32 pmPortland

$336

Find similar

Fly from

Fly to

Route

Depart

Return

Price

PortlandSan José

PDX - SJO

PDXSJO

Portland

Thu 10/30

12:33 pm-11:51 pm

1 stop10h 18m

San José Juan Santamaria Intl

Thu 11/13

1:58 am-11:35 am

1 stop11h 37m

$276

PortlandSan José

PDX - SJO

PDXSJO

Portland

Tue 9/9

7:04 am-7:37 pm

1 stop11h 33m

San José Juan Santamaria Intl

Tue 9/16

1:30 pm-12:45 am

2 stops12h 15m

$280

PortlandSan José

PDX - SJO

PDXSJO

Portland

Sat 11/1

11:58 pm-10:01 pm

1 stop21h 03m

San José Juan Santamaria Intl

Wed 11/12

6:00 am-8:18 pm

2 stops16h 18m

$287

PortlandSan José

PDX - SJO

PDXSJO

Portland

Mon 1/19

6:04 am-10:15 pm

1 stop14h 11m

San José Juan Santamaria Intl

Thu 1/29

7:00 am-7:18 pm

1 stop14h 18m

$316

PortlandSan José

PDX - SJO

PDXSJO

Portland

Mon 1/19

6:04 am-10:15 pm

1 stop14h 11m

San José Juan Santamaria Intl

Thu 1/29

7:00 am-10:22 pm

2 stops17h 22m

$320

PortlandLiberia

PDX - LIR

PDXLIR

Portland

Sat 9/27

9:56 pm-11:49 am

2 stops12h 53m

Liberia

Sat 10/4

2:02 pm-9:55 am

2 stops20h 53m

$337

PortlandSan José

PDX - SJO

PDXSJO

Portland

Tue 9/9

12:07 pm-11:14 am

2 stops22h 07m

San José Juan Santamaria Intl

Tue 9/16

12:19 pm-7:23 pm

3 stops32h 04m

$337

PortlandSan José

PDX - SJO

PDXSJO

Portland

Tue 9/9

12:07 pm-10:27 am

3 stops21h 20m

San José Juan Santamaria Intl

Tue 9/16

12:19 pm-7:23 pm

3 stops32h 04m

$382

SeattleSan José

SEA - SJO

SEASJO

Seattle/Tacoma Intl

Mon 9/1

9:05 am-7:40 am

2 stops21h 35m

San José Juan Santamaria Intl

Mon 9/8

4:20 pm-11:43 am

2 stops20h 23m

$384

SeattleSan José

SEA - SJO

SEASJO

Seattle/Tacoma Intl

Mon 1/26

9:55 am-3:45 am

1 stop15h 50m

San José Juan Santamaria Intl

Mon 2/2

4:40 pm-8:10 pm

2 stops29h 30m

$405

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 May. Flight prices, which tend to average around $547, are often lower during this time because this is during the off-season. If you’re not able to fly to Costa Rica in May, then September is your next best option. Flight prices from State of Washington to Costa Rica during September average around $565.

What is the cheapest day to depart on your flight to Costa Rica?

According to our data, Tuesday is the cheapest day to fly to Costa Rica from State of Washington. The lowest ticket price found for a Tuesday departure recently was $576. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. If your travel schedule is flexible, try to avoid departing on a Friday because tickets tend to average around $782. These prices are subject to change though, so be sure to set up a Price Alert for flights to Costa Rica.

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

At noon is the cheapest time of day to fly from State of Washington to Costa Rica when you can find flight prices for as low as $658. Flying to Costa Rica at noon is an ideal time because this is during off-peak travel hours. Flights to Costa Rica are more costly in the morning, with an average ticket price of $693. Departure times in the morning fall within the peak daily travel times, which is why tickets can be more expensive.

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 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 $651 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 $562 on momondo.

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

There are 3 cabin classes available to choose from on 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 31% 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

Best Price Found	$122
Fastest flight time	6h 58m
Direct flights	Sun
Airports in Costa Rica	2 airports

The best one-way flight to Costa Rica from State of Washington in the past 72 hours is $122. The best round-trip flight deal from State of Washington to Costa Rica found on momondo in the last 72 hours is $276.

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. The only airline offering direct flights is Alaska Airlines.

There are 2 airports near Costa Rica: Liberia (LIR), San José Juan Santamaria Intl (SJO)

Search flight deals

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 July 2025, there are 9 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 75.00% of all bookings. The subsequent popular model is Boeing 737-900 Passenger/BBJ3 (winglets) at 25.00%.

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
Avianca	PriceFrom $152	Free Cancellation	Rating 6.7 2,388 reviews	Search Avianca flights
American Airlines	PriceFrom $287	Free Cancellation	Rating 7.2 10,000 reviews	Search American Airlines flights
Spirit Airlines	PriceFrom $308	Free Cancellation	Rating 6.3 8,048 reviews	Search Spirit Airlines flights
Delta	PriceFrom $390	Free Cancellation	Rating 8.0 7,981 reviews	Search Delta flights
United Airlines	PriceFrom $410	Free Cancellation	Rating 7.4 8,900 reviews	Search United Airlines flights
Copa Airlines	PriceFrom $423	Free Cancellation	Rating 7.5 1,493 reviews	Search Copa Airlines flights
Alaska Airlines	PriceFrom $428	Free Cancellation	Rating 8.0 10,000 reviews	Search Alaska Airlines flights
Southwest	PriceFrom $462	Free Cancellation	Rating 8.0 4,246 reviews	Search Southwest flights
Aeromexico	PriceFrom $734	Free Cancellation	Rating 7.5 1,721 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.

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.

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Popular cities in Costa Rica

Flights to San José, San José Provincefrom $117

Flights to Liberiafrom $245

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Cheap flights from Washington to Costa Rica from $122

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 8/13. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

Find the cheapest flights from Washington to Costa Rica

Cheap round-trip flights

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Cheap last minute flights

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Alaska Airlines flights from State of Washington to Costa Rica

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

Delta flights from State of Washington to Costa Rica

Our best Delta 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

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 Costa Rica?

What is the cheapest day to depart on your flight to Costa Rica?

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

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 to Costa Rica?

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

There are 3 cabin classes available to choose from on 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 31% on your flight if you consider stops on a State of Washington to Costa Rica flight.

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

Alaska Airlines, American Airlines, and United Airlines are the most popular carriers operating 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

Best Price Found

Fastest flight time

Direct flights

Airports in Costa Rica

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

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

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

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

What is the most popular plane model from State of 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?

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

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

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

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

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

Popular cities in Costa Rica

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