Latest deals
Insights
FAQs
Reviews
Price Alerts

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 1/24. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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 Washington to Costa Rica

Cheap round-trip flights

United Airlines Logo
7:38 pm - 11:25 amPDX-SJO
13h 47m2 stops
United Airlines Logo
12:35 pm - 10:45 pmSJO-PDX
12h 10m1 stop
$276United Airlines
Find Deal
Mon, Nov 3 - Sat, Nov 15
American Airlines Logo
10:15 pm - 2:10 pmPDX-SJO
13h 55m2 stops
American Airlines Logo
6:25 am - 8:17 pmSJO-PDX
15h 52m2 stops
$280American Airlines
Find Deal
Mon, Jan 19 - Fri, Jan 23
Southwest Logo
5:15 am - 8:10 pmPDX-SJO
12h 55m1 stop
Southwest Logo
9:00 am - 12:15 amSJO-PDX
17h 15m2 stops
$281Southwest
Find Deal
Sat, Nov 15 - Sun, Nov 23
Alaska Airlines Logo
12:33 pm - 12:38 amPDX-SJO
10h 05m1 stop
Alaska Airlines Logo
1:55 am - 11:35 amSJO-PDX
11h 40m1 stop
$292Alaska Airlines
Find Deal
Thu, Nov 13 - Mon, Nov 17
Southwest Logo
12:50 pm - 1:15 pmGEG-SJO
22h 25m2 stops
Southwest Logo
2:40 pm - 10:25 amSJO-GEG
21h 45m2 stops
$303Southwest
Find Deal
Sat, Nov 15 - Sat, Nov 22
Alaska Airlines Logo
12:33 pm - 12:38 amPDX-SJO
10h 05m1 stop
Alaska Airlines Logo
1:55 am - 10:34 pmSJO-PDX
22h 39m1 stop
$308Alaska Airlines
Find Deal
Thu, Nov 13 - Sun, Nov 16
Delta Logo
3:34 pm - 1:06 pmGEG-SJO
19h 32m2 stops
Delta Logo
2:31 pm - 1:05 pmSJO-GEG
24h 34m2 stops
$320Delta
Find Deal
Sat, Nov 15 - Fri, Nov 21
Delta Logo
12:35 am - 10:07 pmPDX-SJO
19h 32m2 stops
Delta Logo
2:31 pm - 8:35 amSJO-PDX
20h 04m2 stops
$320Delta
Find Deal
Wed, Nov 12 - Mon, Nov 17
Multiple Airlines Logo
8:05 am - 11:51 pmSEA-SJO
14h 46m1 stop
Multiple Airlines Logo
2:20 am - 12:13 pmSJO-SEA
35h 53m2 stops
$347Multiple Airlines
Find Deal
Tue, Oct 28 - Mon, Nov 10
Multiple Airlines Logo
11:23 am - 12:38 amSEA-SJO
11h 15m1 stop
Multiple Airlines Logo
2:20 am - 12:13 pmSJO-SEA
35h 53m2 stops
$360Multiple Airlines
Find Deal
Tue, Nov 4 - Mon, Nov 10

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
Nov 3
PDX7:38 pmPortland
13h 47m
2 stops
SJO11:25 amSan José Juan Santamaria Intl
Nov 15
SJO12:35 pmSan José Juan Santamaria Intl
12h 10m
1 stop
PDX10:45 pmPortland
$276
Find similar
United Airlines
Sep 25
PDX5:30 amPortland
13h 07m
2 stops
SJO7:37 pmSan José Juan Santamaria Intl
Sep 30
SJO8:37 amSan José Juan Santamaria Intl
13h 13m
1 stop
PDX8:50 pmPortland
$280
Find similar
United Airlines
Oct 31
GEG4:05 pmSpokane
17h 20m
2 stops
SJO10:25 amSan José Juan Santamaria Intl
Nov 7
SJO9:40 amSan José Juan Santamaria Intl
15h 49m
1 stop
GEG11:29 pmSpokane
$298
Find similar

Southwest flights from State of Washington to Costa Rica

Our best Southwest deals on State of Washington to Costa Rica flight tickets
Southwest
Nov 15
PDX5:15 amPortland
12h 55m
1 stop
SJO8:10 pmSan José Juan Santamaria Intl
Nov 23
SJO9:00 amSan José Juan Santamaria Intl
17h 15m
2 stops
PDX12:15 amPortland
$281
Find similar
Southwest
Nov 15
GEG12:50 pmSpokane
22h 25m
2 stops
SJO1:15 pmSan José Juan Santamaria Intl
Nov 22
SJO2:40 pmSan José Juan Santamaria Intl
21h 45m
2 stops
GEG10:25 amSpokane
$303
Find similar
Southwest
Nov 3
PDX8:00 amPortland
10h 30m
2 stops
SJO8:30 pmSan José Juan Santamaria Intl
Nov 13
SJO9:00 amSan José Juan Santamaria Intl
17h 15m
2 stops
PDX12:15 amPortland
$362
Find similar

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 September 16, 2025.
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

Mon 11/3

7:38 pm-11:25 am

2 stops13h 47m

San José Juan Santamaria Intl

Sat 11/15

12:35 pm-10:45 pm

1 stop12h 10m

$276

PortlandSan José

PDX - SJO

PDXSJO

Portland

Mon 1/19

10:15 pm-2:10 pm

2 stops13h 55m

San José Juan Santamaria Intl

Fri 1/23

6:25 am-8:17 pm

2 stops15h 52m

$280

PortlandSan José

PDX - SJO

PDXSJO

Portland

Sat 11/15

5:15 am-8:10 pm

1 stop12h 55m

San José Juan Santamaria Intl

Sun 11/23

9:00 am-12:15 am

2 stops17h 15m

$281

PortlandSan José

PDX - SJO

PDXSJO

Portland

Thu 11/13

12:33 pm-12:38 am

1 stop10h 05m

San José Juan Santamaria Intl

Mon 11/17

1:55 am-11:35 am

1 stop11h 40m

$292

SpokaneSan José

GEG - SJO

GEGSJO

Spokane

Sat 11/15

12:50 pm-1:15 pm

2 stops22h 25m

San José Juan Santamaria Intl

Sat 11/22

2:40 pm-10:25 am

2 stops21h 45m

$303

PortlandSan José

PDX - SJO

PDXSJO

Portland

Thu 11/13

12:33 pm-12:38 am

1 stop10h 05m

San José Juan Santamaria Intl

Sun 11/16

1:55 am-10:34 pm

1 stop22h 39m

$308

SpokaneSan José

GEG - SJO

GEGSJO

Spokane

Sat 11/15

3:34 pm-1:06 pm

2 stops19h 32m

San José Juan Santamaria Intl

Fri 11/21

2:31 pm-1:05 pm

2 stops24h 34m

$320

PortlandSan José

PDX - SJO

PDXSJO

Portland

Wed 11/12

12:35 am-10:07 pm

2 stops19h 32m

San José Juan Santamaria Intl

Mon 11/17

2:31 pm-8:35 am

2 stops20h 04m

$320

SeattleSan José

SEA - SJO

SEASJO

Seattle/Tacoma Intl

Tue 10/28

8:05 am-11:51 pm

1 stop14h 46m

San José Juan Santamaria Intl

Mon 11/10

2:20 am-12:13 pm

2 stops35h 53m

$347

SeattleSan José

SEA - SJO

SEASJO

Seattle/Tacoma Intl

Tue 11/4

11:23 am-12:38 am

1 stop11h 15m

San José Juan Santamaria Intl

Mon 11/10

2:20 am-12:13 pm

2 stops35h 53m

$360

Flights are sorted by cheapest round-trip flights first.

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

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 September. Flight prices, which tend to average around $514, are often lower during this time because this is during the off-season. If you’re not able to fly to Costa Rica in September, then October is your next best option. Flight prices from State of Washington to Costa Rica during October average around $531.

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 $643 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 $577 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 42% 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 56m

Direct flights

Sun

Airports in Costa Rica

1 airport
The fastest flight from State of Washington to Costa Rica takes 6h 56m
Direct flights go from State of Washington to Costa Rica on Sunday. There are no airlines offering direct flights.
There is 1 airport near Costa Rica: 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
6.7
2,435 reviews
Search Avianca flights
Spirit AirlinesPriceFrom $308Free CancellationRating
6.3
8,019 reviews
Search Spirit Airlines flights
Alaska AirlinesPriceFrom $311Free CancellationRating
8.0
10,000 reviews
Search Alaska Airlines flights
American AirlinesPriceFrom $328Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
United AirlinesPriceFrom $391Free CancellationRating
7.4
8,924 reviews
Search United Airlines flights
Copa AirlinesPriceFrom $423Free CancellationRating
7.6
1,531 reviews
Search Copa Airlines flights
DeltaPriceFrom $450Free CancellationRating
7.9
7,957 reviews
Search Delta flights
SouthwestPriceFrom $462Free CancellationRating
8.0
4,242 reviews
Search Southwest flights
AeromexicoPriceFrom $709Free CancellationRating
7.4
1,696 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.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Thu 10/16
Thu 10/23
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Costa Rica