₩201,600 Cheap Flights from Washington (IAD) to San José (SJO)

View ₩201,600 flight on Mon, Oct 6, 2025Opens in a new window

Popular airlines from Washington Dulles Intl. Airport (IAD) to Juan Santamaria Intl. Airport (SJO)

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Cheap Flights from Washington to San José (IAD-SJO)

Prices were available within the past 7 days and start at ₩201,600 for one-way flights and ₩456,400 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Mon, Oct 6 - Mon, Oct 13
IAD
Washington
SJO
San José
₩456,400 Roundtrip, found 2 days ago
₩456,400
Roundtrip
found 2 days ago
Select American Airlines flight, departing Mon, Oct 6 from Washington to San José, returning Mon, Oct 13, priced at ₩456,400 found 2 days ago
American Airlines
Mon, Oct 6 - Mon, Oct 13
IAD
Washington
SJO
San José
₩464,100 Roundtrip, found 2 days ago
₩464,100
Roundtrip
found 2 days ago
Select American Airlines flight, departing Mon, Oct 6 from Washington to San José, returning Mon, Oct 13, priced at ₩464,100 found 2 days ago
Copa
Mon, Oct 6 - Mon, Oct 13
IAD
Washington
SJO
San José
₩466,700 Roundtrip, found 2 days ago
₩466,700
Roundtrip
found 2 days ago
Select Copa flight, departing Mon, Oct 6 from Washington to San José, returning Mon, Oct 13, priced at ₩466,700 found 2 days ago
Copa
Mon, Oct 6 - Mon, Oct 13
IAD
Washington
SJO
San José
₩467,900 Roundtrip, found 2 days ago
₩467,900
Roundtrip
found 2 days ago
Select Copa flight, departing Mon, Oct 6 from Washington to San José, returning Mon, Oct 13, priced at ₩467,900 found 2 days ago
American Airlines
Mon, Oct 6 - Mon, Oct 13
IAD
Washington
SJO
San José
₩469,400 Roundtrip, found 2 days ago
₩469,400
Roundtrip
found 2 days ago
Select American Airlines flight, departing Mon, Oct 6 from Washington to San José, returning Mon, Oct 13, priced at ₩469,400 found 2 days ago
United
Mon, Oct 6 - Mon, Oct 13
IAD
Washington
SJO
San José
₩477,000 Roundtrip, found 2 days ago
₩477,000
Roundtrip
found 2 days ago
Select United flight, departing Mon, Oct 6 from Washington to San José, returning Mon, Oct 13, priced at ₩477,000 found 2 days ago
Copa
Mon, Oct 6 - Mon, Oct 13
IAD
Washington
SJO
San José
₩477,500 Roundtrip, found 2 days ago
₩477,500
Roundtrip
found 2 days ago
Select Copa flight, departing Mon, Oct 6 from Washington to San José, returning Mon, Oct 13, priced at ₩477,500 found 2 days ago
American Airlines
Mon, Oct 6 - Mon, Oct 13
IAD
Washington
SJO
San José
₩478,200 Roundtrip, found 2 days ago
₩478,200
Roundtrip
found 2 days ago
Select American Airlines flight, departing Mon, Oct 6 from Washington to San José, returning Mon, Oct 13, priced at ₩478,200 found 2 days ago
Aeromexico
Mon, Oct 6 - Mon, Oct 13
IAD
Washington
SJO
San José
₩1,193,600 Roundtrip, found 2 days ago
₩1,193,600
Roundtrip
found 2 days ago
Select Aeromexico flight, departing Mon, Oct 6 from Washington to San José, returning Mon, Oct 13, priced at ₩1,193,600 found 2 days ago
Air Canada
Mon, Dec 22 - Mon, Jan 12
IAD
Washington
SJO
San José
₩2,131,700 Roundtrip, found 5 days ago
₩2,131,700
Roundtrip
found 5 days ago
Select Air Canada flight, departing Mon, Dec 22 from Washington to San José, returning Mon, Jan 12, priced at ₩2,131,700 found 5 days ago

Find the cheapest month to fly from Washington (IAD) to San José (SJO)

October is typically the cheapest month to fly

From ₩320,922 - ₩462,405 per traveler.

Graph displaying average flight prices per month

Flights from Washington (IAD) to San José (SJO)
Origin airport
Washington Dulles Intl.
Destination airport
Juan Santamaría Intl.
Roundtrip price
₩456,400
Distance
3269 km
Average flight time
4 hours 29 mins

Chantilly to San José Flights

Sometimes you just need to get out of town or maybe you’re looking for a change of scenery. Regardless of the reason, a flight from Chantilly to San José will do just the trick! Go on, plan to see all the famous landmarks and eat your weight in the local cuisine. Your trip is beckoning, so answer the call by packing your suitcase and filling your travel itinerary with exploring San José.

Whether you’re flying for business or jet-setting on your personal time, you’ve come to the right place. Here at Expedia.com, we’ll pair you up with IAD to SJO flights that won’t make your bank account wince. Ready to temporarily leave behind Chantilly for new horizons? Browse through our cheap airfare, and filter by flight times and dates until you find just what you had in mind. From flights without layovers to ones that arrive early in the morning, you’ll come across plane tickets that suit your travel preferences. You can even bundle your flight to SJO with hotels and car rentals to score even bigger savings.

All set to hit the clouds? Book your travel arrangements with us today and have left-over money to put toward your travel outings and adventures.

Frequently asked questions

How much is a flight from Dulles Intl. Airport to SJO?
Within the past 7 days on Expedia, for flights departing within the next year, the lowest price listed for a round-trip flight from Dulles Intl. Airport to Juan Santamaria Intl. Airport was ₩456,400. Great fares don't stick around for long, so make sure you book yours ASAP. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from Dulles Intl. Airport to SJO?
This varies between airlines, as each has its own set of terms and conditions. Head to the Customer Service Portal, where you'll find simple instructions on how to cancel your flight online.
How do I find cheap flights from IAD to SJO that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for Washington Dulles Intl. Airport (IAD) to Juan Santamaria Intl. Airport flights, you'll see a "no change fees" filter for you to select.
How far is the flight from Washington Dulles Intl. Airport (IAD) to SJO?
The flying distance between IAD (IAD) and Juan Santamaria Intl. Airport (SJO) (SJO) is 3,300 kilometers. Squeeze in a nap or finish that novel and the trip will zip by.
Which airlines fly direct from Dulles Intl. Airport to Juan Santamaria Intl. Airport?
United Airlines (UA) will get you from Washington Dulles Intl. Airport (IAD) to Juan Santamaria Intl. Airport (SJO) comfortably and reliably. Choose from 4 flights each month along this route.
Are IAD to Juan Santamaria Intl. Airport flight tickets cheaper when they're purchased at the last minute?
Booking your trip from IAD to SJO at the last minute could be your ticket to a fantastic deal. However, it might cost you a whole lot more! If you'd rather err on the side of caution, book well ahead of your departure date. In fact, Expedia has some of the biggest bargains up to a year in advance. If your preferred air carrier hasn't released tickets yet, check back often as deals are updated all the time on Expedia.

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