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Cheap flights from Washington to Costa Rica from $133

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 2/15. 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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0 bags

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Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
11:35 pm - 8:12 pm
PDX
-
SJO
18h 37m
1 stop
American Airlines Logo
7:00 am - 12:17 am
SJO
-
PDX
19h 17m
1 stop
$297American Airlines
Tue, Feb 24 - Wed, Mar 4
American Airlines Logo
11:35 pm - 8:12 pm
PDX
-
SJO
18h 37m
1 stop
American Airlines Logo
7:00 am - 9:52 pm
SJO
-
PDX
16h 52m
2 stops
$302American Airlines
Tue, Feb 24 - Wed, Mar 4
American Airlines Logo
10:53 pm - 8:33 pm
PDX
-
SJO
19h 40m
1 stop
American Airlines Logo
2:20 pm - 1:01 pm
SJO
-
PDX
23h 41m
1 stop
$305American Airlines
Tue, Mar 3 - Tue, Mar 10
Multiple Airlines Logo
7:00 am - 3:30 pm
PDX
-
SJO
30h 30m
1 stop
Multiple Airlines Logo
7:45 am - 8:44 pm
SJO
-
PDX
14h 59m
1 stop
$322Multiple Airlines
Tue, Feb 17 - Mon, Feb 23
Multiple Airlines Logo
7:16 am - 11:15 pm
PDX
-
SJO
13h 59m
2 stops
Multiple Airlines Logo
7:45 am - 8:44 pm
SJO
-
PDX
13h 59m
1 stop
$327Multiple Airlines
Tue, Mar 3 - Tue, Mar 10
Alaska Airlines Logo
2:30 pm - 6:45 am
PDX
-
LIR
14h 15m
1 stop
Alaska Airlines Logo
7:08 pm - 9:35 am
LIR
-
PDX
16h 27m
1 stop
$366Alaska Airlines
Mon, Mar 2 - Thu, Mar 5
Alaska Airlines Logo
10:30 am - 6:36 am
PDX
-
LIR
19h 06m
1 stop
Alaska Airlines Logo
11:45 am - 1:25 pm
LIR
-
PDX
26h 40m
1 stop
$374Alaska Airlines
Mon, Mar 9 - Wed, Mar 11
United Airlines Logo
12:35 pm - 7:15 am
GEG
-
SJO
17h 40m
1 stop
United Airlines Logo
8:45 am - 9:40 pm
SJO
-
GEG
13h 55m
1 stop
$381United Airlines
Fri, May 8 - Wed, May 13
United Airlines Logo
5:05 am - 4:08 pm
PDX
-
LIR
9h 03m
1 stop
United Airlines Logo
8:35 am - 10:59 pm
LIR
-
PDX
16h 24m
2 stops
$385United Airlines
Thu, Feb 26 - Wed, Mar 4
GOL Logo
6:30 am - 2:12 pm
GEG
-
SJO
30h 42m
2 stops
GOL Logo
3:12 pm - 8:47 pm
SJO
-
GEG
30h 35m
2 stops
$437GOL
Tue, Jul 7 - Tue, Jul 14

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
Feb 24
PDX11:35 pmPortland
18h 37m
1 stop
SJO8:12 pmSan José Juan Santamaria Intl
Mar 4
SJO7:00 amSan José Juan Santamaria Intl
19h 17m
1 stop
PDX12:17 amPortland
$297
American Airlines
Feb 24
PDX11:35 pmPortland
18h 37m
1 stop
SJO8:12 pmSan José Juan Santamaria Intl
Mar 4
SJO7:00 amSan José Juan Santamaria Intl
16h 52m
2 stops
PDX9:52 pmPortland
$302
American Airlines
Mar 3
PDX10:53 pmPortland
19h 40m
1 stop
SJO8:33 pmSan José Juan Santamaria Intl
Mar 10
SJO2:20 pmSan José Juan Santamaria Intl
23h 41m
1 stop
PDX1:01 pmPortland
$305

United Airlines flights from State of Washington to Costa Rica

Our best United Airlines deals on State of Washington to Costa Rica flight tickets
United Airlines
Apr 13
PDX7:14 pmPortland
11h 01m
1 stop
SJO7:15 amSan José Juan Santamaria Intl
Apr 17
SJO8:45 amSan José Juan Santamaria Intl
13h 03m
1 stop
PDX8:48 pmPortland
$355
United Airlines
Apr 13
PDX7:14 pmPortland
13h 57m
2 stops
SJO10:11 amSan José Juan Santamaria Intl
Apr 17
SJO8:45 amSan José Juan Santamaria Intl
13h 03m
1 stop
PDX8:48 pmPortland
$360
United Airlines
Apr 13
PDX7:00 amPortland
11h 37m
1 stop
SJO7:37 pmSan José Juan Santamaria Intl
Apr 17
SJO8:45 amSan José Juan Santamaria Intl
13h 03m
1 stop
PDX8:48 pmPortland
$362

momondo Fare Finder

 
Customize your flight search to find flights from State of Washington to Costa Rica 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 February 8, 2026.
Use the filters below to find and compare flights from Washington to Costa Rica that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

PortlandSan José

PDX - SJO

PDXSJO

Portland

Tue 2/24

11:35 pm-8:12 pm

1 stop18h 37m

San José Juan Santamaria Intl

Wed 3/4

7:00 am-12:17 am

1 stop19h 17m

$297

PortlandSan José

PDX - SJO

PDXSJO

Portland

Tue 2/24

11:35 pm-8:12 pm

1 stop18h 37m

San José Juan Santamaria Intl

Wed 3/4

7:00 am-9:52 pm

2 stops16h 52m

$302

PortlandSan José

PDX - SJO

PDXSJO

Portland

Tue 3/3

10:53 pm-8:33 pm

1 stop19h 40m

San José Juan Santamaria Intl

Tue 3/10

2:20 pm-1:01 pm

1 stop23h 41m

$305

PortlandSan José

PDX - SJO

PDXSJO

Portland

Tue 2/17

7:00 am-3:30 pm

1 stop30h 30m

San José Juan Santamaria Intl

Mon 2/23

7:45 am-8:44 pm

1 stop14h 59m

$322

PortlandSan José

PDX - SJO

PDXSJO

Portland

Tue 3/3

7:16 am-11:15 pm

2 stops13h 59m

San José Juan Santamaria Intl

Tue 3/10

7:45 am-8:44 pm

1 stop13h 59m

$327

PortlandLiberia

PDX - LIR

PDXLIR

Portland

Mon 3/2

2:30 pm-6:45 am

1 stop14h 15m

Liberia

Thu 3/5

7:08 pm-9:35 am

1 stop16h 27m

$366

PortlandLiberia

PDX - LIR

PDXLIR

Portland

Mon 3/9

10:30 am-6:36 am

1 stop19h 06m

Liberia

Wed 3/11

11:45 am-1:25 pm

1 stop26h 40m

$374

SpokaneSan José

GEG - SJO

GEGSJO

Spokane

Fri 5/8

12:35 pm-7:15 am

1 stop17h 40m

San José Juan Santamaria Intl

Wed 5/13

8:45 am-9:40 pm

1 stop13h 55m

$381

PortlandLiberia

PDX - LIR

PDXLIR

Portland

Thu 2/26

5:05 am-4:08 pm

1 stop9h 03m

Liberia

Wed 3/4

8:35 am-10:59 pm

2 stops16h 24m

$385

SpokaneSan José

GEG - SJO

GEGSJO

Spokane

Tue 7/7

6:30 am-2:12 pm

2 stops30h 42m

San José Juan Santamaria Intl

Tue 7/14

3:12 pm-8:47 pm

2 stops30h 35m

$437

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 Costa Rica from

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?

The cheapest month to fly to Costa Rica from State of Washington is in October. Flight prices, which tend to average around $495, are often lower during this time because this is during the off-season. If you’re not able to fly to Costa Rica in October, then September is your next best option. Flight prices from State of Washington to Costa Rica during September average around $502.

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 $614 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 $536 on momondo.

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

There are 2 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 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

Best Price Found

$626

Fastest flight time

7h 04m

Direct flights

Sun

Airports in Costa Rica

40 airports
The best flight deal from State of Washington to Costa Rica found on momondo in the last 72 hours is $626
The fastest flight from State of Washington to Costa Rica takes 7h 04m
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

  • 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?

  • 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?

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
AviancaPriceFrom $152Free CancellationRating
6.5
2,498 reviews
Search Avianca flights
DeltaPriceFrom $280Free CancellationRating
7.9
8,172 reviews
Search Delta flights
American AirlinesPriceFrom $287Free CancellationRating
7.2
11,249 reviews
Search American Airlines flights
United AirlinesPriceFrom $297Free CancellationRating
7.4
9,256 reviews
Search United Airlines flights
Alaska AirlinesPriceFrom $311Free CancellationRating
8.0
11,851 reviews
Search Alaska Airlines flights
SouthwestPriceFrom $500Free CancellationRating
8.0
4,281 reviews
Search Southwest flights
AeromexicoPriceFrom $809Free CancellationRating
7.4
1,578 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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