Washington Dulles International Airport
Dulles, United StatesIAD / KIAD
International hub · 171 direct destinations · 4 runways · longest runway 11,499 ft
67 °F · CloudySource: METAR observation via the NOAA Aviation Weather Center
Route
Dulles → San José
IAD
DullesWashington Dulles International Airport
DullesWashington Dulles International AirportSJO
San JoséJuan Santamaría International Airport
San JoséJuan Santamaría International Airport- Distance
- 2,043 mi
- Estimated flight time
- ~4h 35m
San José is currently 2 hours behind Dulles.
Observed nonstop
How often does this route fly?
Frequency
Daily at most
On average around 1 flights a day, observed from October 2025 to September 2026.
- 1
- flights per day
- 1
- busiest month · Oct
- 6 hr 47 min
- measured flight time
- 1 / 12
- months seen
Through the year
Per day, month by month
- –Jan2026
- –Feb
- –Mar
- –Apr
- –May
- –Jun
- –Jul
- –Aug
- –Sep
- 1Oct2025
- –Nov
- –Dec
Airlines
Who flies it
Avianca Costa Ricanow and then
Through the day
Departure times
Local time in Dulles. Most departures between 01:00 and 04:00.
- 00:00
- 01:00
- 02:00
- 03:00
- 04:00
- 05:00
- 06:00
- 07:00
- 08:00
- 09:00
- 10:00
- 11:00
- 12:00
- 13:00
- 14:00
- 15:00
- 16:00
- 17:00
- 18:00
- 19:00
- 20:00
- 21:00
- 22:00
- 23:00
Through the week
By weekday
- 0Mon
- 0.1Tue
- 0.1Wed
- 0Thu
- 0.1Fri
- 0Sat
- 0.1Sun
Fleet
Aircraft observed
- Airbus A320neoA20N87%
- Airbus A320A32013%
All the numbers in a table
| Month | Per day | Seen | Airlines |
|---|---|---|---|
| January 2026 | Not seen in this month. | ||
| February 2026 | Not seen in this month. | ||
| March 2026 | Not seen in this month. | ||
| April 2026 | Not seen in this month. | ||
| May 2026 | Not seen in this month. | ||
| June 2026 | Not seen in this month. | ||
| July 2026 | Not seen in this month. | ||
| August 2026 | Not seen in this month. | ||
| September 2026 | Not seen in this month. | ||
| October 2025 | 1 | 15 |
|
| November 2025 | Not seen in this month. | ||
| December 2025 | Not seen in this month. | ||
Airlines observed on this route
From observed callsign routes on IAD-SJO - not a booking guarantee.
About this route
- International route: Dulles and San José are in different countries.
- Direct destinations observed from Dulles: 171.
- Direct destinations observed from San José: 20.
The airports on this route
Juan Santamaría International Airport
San José, Costa RicaSJO / MROC
Major airport · 20 direct destinations · 1 runway · longest runway 9,882 ft
81 °F · CloudySource: METAR observation via the NOAA Aviation Weather Center
About the route from Dulles to San José
The observed direct connection between Washington Dulles International Airport (IAD) and Juan Santamaría International Airport (SJO) covers approximately 2,043 mi. The estimated flight time is around 4h 35m. Avianca Costa Rica has been observed on this connection in the available route data.
Frequently asked questions about this route
- How far is Dulles from San José by air?
- The great-circle distance between Washington Dulles International Airport and Juan Santamaría International Airport is approximately 2,043 mi.
- How long is the flight from Dulles to San José?
- Based on the distance, the estimated flight time is about 4h 35m. This is an estimate, not a schedule.
- Is there a direct connection from Dulles to San José?
- Yes, a direct connection between IAD and SJO has been observed in our route data.
- Which airlines have been observed on this route?
- In the available route data: Avianca Costa Rica.
- How often is there a flight from Dulles to San José?
- On average around 1 flights a day, measured over twelve months (October 2025 to September 2026) in the flight archive, with 15 observed flights. Mainly Avianca Costa Rica. That is an observation, not a timetable.
- What is the current time difference between Dulles and San José?
- San José is currently 2 hours behind Dulles.
Where this data comes from
The route data comes from the flight archive (ADS-B, adsb.lol): which connections actually flew over the last twelve full months and who flew them, combined with our own airport, runway, and airline datasets. It is reference data about observed routes - not a current timetable and no claim about bookability.
The frequency and aircraft on this page come from the flight archive (ADS-B, 12 months, October 2025 to September 2026), summarized per route per month. We do not see every flight, so it is a floor, not a count.
Route data updated on October 11, 2026.