Cheap flights from Washington to Costa Rica from $168

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 4/13. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Cheap round-trip flights

Enter your travel dates to find the best prices.
American Airlines Logo
12:51 pm - 11:50 am
GEG
-
SJO
21h 59m
2 stops
American Airlines Logo
3:08 pm - 12:01 pm
SJO
-
GEG
21h 53m
2 stops
$365American Airlines
Tue, May 26 - Tue, Jun 2
Alaska Airlines Logo
7:00 am - 11:33 pm
GEG
-
SJO
15h 33m
1 stop
Alaska Airlines Logo
12:53 am - 10:52 pm
SJO
-
GEG
22h 59m
1 stop
$368Alaska Airlines
Mon, May 25 - Wed, Jun 3
American Airlines Logo
12:51 pm - 11:50 am
GEG
-
SJO
21h 59m
2 stops
American Airlines Logo
11:59 pm - 8:43 pm
SJO
-
GEG
21h 44m
1 stop
$374American Airlines
Tue, May 26 - Thu, Jun 4
Alaska Airlines Logo
4:09 pm - 11:33 pm
GEG
-
SJO
30h 24m
1 stop
Alaska Airlines Logo
12:53 am - 10:52 pm
SJO
-
GEG
22h 59m
1 stop
$375Alaska Airlines
Sun, May 24 - Thu, Jun 4
United Airlines Logo
7:45 pm - 7:15 am
PDX
-
SJO
10h 30m
1 stop
United Airlines Logo
8:45 am - 8:54 pm
SJO
-
PDX
13h 09m
1 stop
$378United Airlines
Tue, May 19 - Mon, Jun 1
Alaska Airlines Logo
7:00 am - 11:33 pm
GEG
-
SJO
15h 33m
1 stop
Alaska Airlines Logo
12:53 am - 6:45 pm
SJO
-
GEG
18h 52m
2 stops
$379Alaska Airlines
Mon, May 25 - Sun, May 31
Alaska Airlines Logo
7:00 am - 11:33 pm
GEG
-
SJO
15h 33m
1 stop
Alaska Airlines Logo
12:53 am - 3:29 pm
SJO
-
GEG
15h 36m
1 stop
$380Alaska Airlines
Mon, May 25 - Mon, Jun 1
United Airlines Logo
7:13 am - 7:37 pm
PDX
-
SJO
11h 24m
1 stop
United Airlines Logo
8:45 am - 11:00 pm
SJO
-
PDX
15h 15m
1 stop
$405United Airlines
Tue, Sep 1 - Mon, Sep 14
Southwest Logo
11:55 pm - 1:15 pm
SEA
-
LIR
12h 20m
2 stops
Southwest Logo
2:10 pm - 12:55 am
LIR
-
SEA
11h 45m
2 stops
$530Southwest
Mon, May 4 - Mon, May 11
JetBlue Logo
11:52 pm - 12:40 pm
SEA
-
LIR
11h 48m
1 stop
JetBlue Logo
1:00 pm - 8:56 pm
LIR
-
SEA
32h 56m
2 stops
$571JetBlue
Thu, May 28 - Mon, Jun 1

GOL flights from State of Washington to Costa Rica

Our best GOL deals on State of Washington to Costa Rica flight tickets
GOL
Jun 22
PDX5:49 amPortland
29h 07m
2 stops
SJO11:56 amSan José Juan Santamaria Intl
Jun 29
SJO6:00 amSan José Juan Santamaria Intl
30h 09m
2 stops
PDX11:09 amPortland
$455
GOL
Sep 1
PDX11:59 pmPortland
12h 59m
1 stop
SJO1:58 pmSan José Juan Santamaria Intl
Dec 16
SJO8:11 amSan José Juan Santamaria Intl
17h 41m
1 stop
PDX11:52 pmPortland
$461
GOL
Apr 22
PDX1:23 pmPortland
21h 02m
2 stops
SJO11:25 amSan José Juan Santamaria Intl
Apr 29
SJO12:10 pmSan José Juan Santamaria Intl
23h 51m
2 stops
PDX11:01 amPortland
$470

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
May 25
GEG7:00 amSpokane
15h 33m
1 stop
SJO11:33 pmSan José Juan Santamaria Intl
Jun 2
SJO12:53 amSan José Juan Santamaria Intl
22h 59m
1 stop
GEG10:52 pmSpokane
$368
Alaska Airlines
May 24
GEG4:09 pmSpokane
30h 24m
1 stop
SJO11:33 pmSan José Juan Santamaria Intl
Jun 4
SJO12:53 amSan José Juan Santamaria Intl
22h 59m
1 stop
GEG10:52 pmSpokane
$375
Alaska Airlines
May 25
GEG7:00 amSpokane
15h 33m
1 stop
SJO11:33 pmSan José Juan Santamaria Intl
May 31
SJO12:53 amSan José Juan Santamaria Intl
18h 52m
2 stops
GEG6:45 pmSpokane
$379

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 March 26, 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

Cheapest round-trip

SpokaneSan José

GEG - SJO

GEGSJO

Spokane

Tue 5/26

12:51 pm-11:50 am

2 stops21h 59m

San José Juan Santamaria Intl

Tue 6/2

3:08 pm-12:01 pm

2 stops21h 53m

$365

SpokaneSan José

GEG - SJO

GEGSJO

Spokane

Mon 5/25

7:00 am-11:33 pm

1 stop15h 33m

San José Juan Santamaria Intl

Wed 6/3

12:53 am-10:52 pm

1 stop22h 59m

$368

SpokaneSan José

GEG - SJO

GEGSJO

Spokane

Tue 5/26

12:51 pm-11:50 am

2 stops21h 59m

San José Juan Santamaria Intl

Thu 6/4

11:59 pm-8:43 pm

1 stop21h 44m

$374

SpokaneSan José

GEG - SJO

GEGSJO

Spokane

Sun 5/24

4:09 pm-11:33 pm

1 stop30h 24m

San José Juan Santamaria Intl

Thu 6/4

12:53 am-10:52 pm

1 stop22h 59m

$375
Quickest round-trip

PortlandSan José

PDX - SJO

PDXSJO

Portland

Tue 5/19

7:45 pm-7:15 am

1 stop10h 30m

San José Juan Santamaria Intl

Mon 6/1

8:45 am-8:54 pm

1 stop13h 09m

$378

SpokaneSan José

GEG - SJO

GEGSJO

Spokane

Mon 5/25

7:00 am-11:33 pm

1 stop15h 33m

San José Juan Santamaria Intl

Sun 5/31

12:53 am-6:45 pm

2 stops18h 52m

$379

SpokaneSan José

GEG - SJO

GEGSJO

Spokane

Mon 5/25

7:00 am-11:33 pm

1 stop15h 33m

San José Juan Santamaria Intl

Mon 6/1

12:53 am-3:29 pm

1 stop15h 36m

$380

PortlandSan José

PDX - SJO

PDXSJO

Portland

Tue 9/1

7:13 am-7:37 pm

1 stop11h 24m

San José Juan Santamaria Intl

Mon 9/14

8:45 am-11:00 pm

1 stop15h 15m

$405

SeattleLiberia

SEA - LIR

SEALIR

Seattle/Tacoma Intl

Mon 5/4

11:55 pm-1:15 pm

2 stops12h 20m

Liberia

Mon 5/11

2:10 pm-12:55 am

2 stops11h 45m

$530

SeattleLiberia

SEA - LIR

SEALIR

Seattle/Tacoma Intl

Thu 5/28

11:52 pm-12:40 pm

1 stop11h 48m

Liberia

Mon 6/1

1:00 pm-8:56 pm

2 stops32h 56m

$571

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 $489, 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 $494.

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 $611 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 $534 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 30% 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 57m

Direct flights

Sun

Airports in Costa Rica

40 airports
The fastest flight from State of Washington to Costa Rica takes 6h 57m
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).
  • 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
2,506 reviews
Search Avianca flights
DeltaPriceFrom $284Free CancellationRating
7.9
8,330 reviews
Search Delta flights
American AirlinesPriceFrom $287Free CancellationRating
7.1
11,495 reviews
Search American Airlines flights
United AirlinesPriceFrom $297Free CancellationRating
7.4
9,483 reviews
Search United Airlines flights
Alaska AirlinesPriceFrom $311Free CancellationRating
7.9
12,115 reviews
Search Alaska Airlines flights
JetBluePriceFrom $362Free CancellationRating
7.2
2,904 reviews
Search JetBlue flights
SouthwestPriceFrom $500Free CancellationRating
8.0
4,333 reviews
Search Southwest flights
AeromexicoPriceFrom $766Free CancellationRating
7.4
1,559 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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1 adult
Sat 4/25
Sat 5/2

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