€112 Cheap Flights Washington to San José (IAD-SJO)

View €112 flight on Thu, 7 Aug 2025Opens in a new window

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

  • Plan, book, fly with confidence

  • trending down icon
    Be in the know
    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon
    Book smarter
    Save up to 15% on select hotels after you book a flight*
  • payments icon
    Earn twice
    Earn your airline miles on top of our rewards
    Sign in

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

Prices were available within the past 7 days and start at €112 for one-way flights and €246 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Thu, 7 Aug - Thu, 13 Nov
IAD
Washington
SJO
San José
€246 Return, found 1 day ago
€246
Return
found 1 day ago
Select American Airlines flight, departing Thu, 7 Aug from Washington to San José, returning Thu, 13 Nov, priced at €246 found 1 day ago
American Airlines
Thu, 7 Aug - Thu, 13 Nov
IAD
Washington
SJO
San José
€249 Return, found 1 day ago
€249
Return
found 1 day ago
Select American Airlines flight, departing Thu, 7 Aug from Washington to San José, returning Thu, 13 Nov, priced at €249 found 1 day ago
American Airlines
Thu, 7 Aug - Thu, 13 Nov
IAD
Washington
SJO
San José
€251 Return, found 1 day ago
€251
Return
found 1 day ago
Select American Airlines flight, departing Thu, 7 Aug from Washington to San José, returning Thu, 13 Nov, priced at €251 found 1 day ago
American Airlines
Thu, 7 Aug - Thu, 13 Nov
IAD
Washington
SJO
San José
€256 Return, found 1 day ago
€256
Return
found 1 day ago
Select American Airlines flight, departing Thu, 7 Aug from Washington to San José, returning Thu, 13 Nov, priced at €256 found 1 day ago
United
Thu, 7 Aug - Thu, 13 Nov
IAD
Washington
SJO
San José
€274 Return, found 1 day ago
€274
Return
found 1 day ago
Select United flight, departing Thu, 7 Aug from Washington to San José, returning Thu, 13 Nov, priced at €274 found 1 day ago
American Airlines
Thu, 7 Aug - Thu, 13 Nov
IAD
Washington
SJO
San José
€278 Return, found 1 day ago
€278
Return
found 1 day ago
Select American Airlines flight, departing Thu, 7 Aug from Washington to San José, returning Thu, 13 Nov, priced at €278 found 1 day ago
American Airlines
Thu, 7 Aug - Thu, 13 Nov
IAD
Washington
SJO
San José
€279 Return, found 1 day ago
€279
Return
found 1 day ago
Select American Airlines flight, departing Thu, 7 Aug from Washington to San José, returning Thu, 13 Nov, priced at €279 found 1 day ago
Copa
Fri, 18 Jul - Tue, 22 Jul
IAD
Washington
SJO
San José
€285 Return, found 3 days ago
€285
Return
found 3 days ago
Select Copa flight, departing Fri, 18 Jul from Washington to San José, returning Tue, 22 Jul, priced at €285 found 3 days ago
avianca
Fri, 11 Jul - Thu, 17 Jul
IAD
Washington
SJO
San José
€454 Return, found 3 hours ago
€454
Return
found 3 hours ago
Select avianca flight, departing Fri, 11 Jul from Washington to San José, returning Thu, 17 Jul, priced at €454 found 3 hours ago
Delta
Fri, 11 Jul - Thu, 17 Jul
IAD
Washington
SJO
San José
€631 Return, found 3 hours ago
€631
Return
found 3 hours ago
Select Delta flight, departing Fri, 11 Jul from Washington to San José, returning Thu, 17 Jul, priced at €631 found 3 hours ago

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

September is typically the cheapest month to fly

From €195 - €281 per traveller.

Graph displaying average flight prices per month

Washington to San José route information
Origin airport
Washington Dulles Intl.
Destination airport
Juan Santamaría Intl.
Airlines serving
Aeromexico, Air Canada, American Airlines, Copa, Delta, United
Return price
€246
Distance
3269 km
Average flight time
3 hours 47 mins

Perfect flights from Washington to San José

Embark on an unforgettable journey without breaking the bank with Expedia's incredible deals on cheap flights from Washington to San José. Whether you're aching for a romantic escape with your partner, craving an adventurous solo expedition, or yearning to immerse yourself in the local history and culture, we've got you covered.
 
Picture yourself strolling through the streets of San José, surrounded by breathtaking architecture and absorbing the vibrant atmosphere of this captivating city. Indulge in the mouth-watering local specialties, from tantalizing street food to exquisite fine dining. With Expedia, you can experience all of this and more, without sacrificing your budget.
 
Our flexible Washington Dulles Intl. to Juan Santamaría Intl. ticket options cater to your travel preferences, with incredible one-way fares from €112 and roundtrip prices from €246. Whether you're planning a short city break or a longer adventure, our dynamic pricing ensures that you find the best deals for your journey.
 
But the magic doesn't stop there. Expedia offers a range of partner services to enhance your trip. Rent a car at Juan Santamaría Intl. and explore San José and its surrounding areas at your own pace. Discover hidden gems off the beaten path, and create unforgettable memories. We also provide a handpicked selection of accommodations, from charming bed and breakfasts to luxury hotels, ensuring that you have a comfortable and memorable stay.
 
Planning your next great adventure is a breeze with Expedia. Our user-friendly platform, unbeatable prices, and round-the-clock customer support are designed to make your travel experience seamless and stress-free. So, why wait? Book your IAD to SJO travel arrangements today and embark on the journey of a lifetime in San José.

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 €246. 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 kilometres. 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.

Explore a world of travel with Expedia

*Available to Expedia members.