RM938 Cheap Flights from Washington (IAD) to San José (SJO)

View RM938 flight on Mon, 18 May 2026Opens 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 RM938 for one-way flights and RM1,551 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Copa
Mon, 18 May - Fri, 29 May
IAD
Washington
SJO
San José
RM1,551 Return, found 2 days ago
RM1,551
Return
found 2 days ago
Select Copa flight, departing Mon, 18 May from Washington to San José, returning Fri, 29 May, priced at RM1,551 found 2 days ago
Copa
Mon, 18 May - Fri, 29 May
IAD
Washington
SJO
San José
RM1,566 Return, found 2 days ago
RM1,566
Return
found 2 days ago
Select Copa flight, departing Mon, 18 May from Washington to San José, returning Fri, 29 May, priced at RM1,566 found 2 days ago
Copa
Mon, 18 May - Fri, 29 May
IAD
Washington
SJO
San José
RM1,582 Return, found 2 days ago
RM1,582
Return
found 2 days ago
Select Copa flight, departing Mon, 18 May from Washington to San José, returning Fri, 29 May, priced at RM1,582 found 2 days ago
Copa
Mon, 18 May - Fri, 29 May
IAD
Washington
SJO
San José
RM1,610 Return, found 2 days ago
RM1,610
Return
found 2 days ago
Select Copa flight, departing Mon, 18 May from Washington to San José, returning Fri, 29 May, priced at RM1,610 found 2 days ago
Copa
Mon, 18 May - Fri, 29 May
IAD
Washington
SJO
San José
RM1,626 Return, found 2 days ago
RM1,626
Return
found 2 days ago
Select Copa flight, departing Mon, 18 May from Washington to San José, returning Fri, 29 May, priced at RM1,626 found 2 days ago
Copa
Mon, 18 May - Fri, 29 May
IAD
Washington
SJO
San José
RM1,642 Return, found 2 days ago
RM1,642
Return
found 2 days ago
Select Copa flight, departing Mon, 18 May from Washington to San José, returning Fri, 29 May, priced at RM1,642 found 2 days ago
United
Tue, 19 May - Thu, 28 May
IAD
Washington
SJO
San José
RM1,814 Return, found 2 days ago
RM1,814
Return
found 2 days ago
Select United flight, departing Tue, 19 May from Washington to San José, returning Thu, 28 May, priced at RM1,814 found 2 days ago
avianca
Tue, 19 May - Thu, 28 May
IAD
Washington
SJO
San José
RM1,824 Return, found 2 days ago
RM1,824
Return
found 2 days ago
Select avianca flight, departing Tue, 19 May from Washington to San José, returning Thu, 28 May, priced at RM1,824 found 2 days ago
American Airlines
Mon, 18 May - Fri, 29 May
IAD
Washington
SJO
San José
RM1,854 Return, found 2 days ago
RM1,854
Return
found 2 days ago
Select American Airlines flight, departing Mon, 18 May from Washington to San José, returning Fri, 29 May, priced at RM1,854 found 2 days ago
Delta
Tue, 19 May - Thu, 28 May
IAD
Washington
SJO
San José
RM2,001 Return, found 2 days ago
RM2,001
Return
found 2 days ago
Select Delta flight, departing Tue, 19 May from Washington to San José, returning Thu, 28 May, priced at RM2,001 found 2 days ago

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

May is typically the cheapest month to fly

From RM 1,185 - RM 1,541 per traveller.

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 RM1,551. 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.

Travel information

Origin airport
Washington Dulles Intl.
Destination airport
Juan Santamaría Intl.
Return price
RM1,551
Distance
3269 km
Average flight time
3 hours 53 mins
*Available to Expedia members.