Dulles (IAD) to San José (Alajuela) (SJO) flights
There were no regular nonstop flights from IAD to SJO in July 2026; the route was flown 88 times in the previous 12 months. The 2,037-mile flight takes about 2h 14m gate to gate.
From
IAD
Dulles
Washington Dulles International Airport
To
SJO
San José (Alajuela)
Juan Santamaría International Airport
- Distance
- 2,037 mi · 3,278 km
- Flight time
- 2h 14m
- Airlines
- 2
- Seats filled
- 73%
Flights a week, July 2026
88 flights and 11,056 passengers in 12 months
Airlines flying IAD to SJO
| Airline | Flights a week | Aircraft | Passengers (12 months) | Flight time |
|---|---|---|---|---|
| Avianca Costa RicaSeasonal or ended | n/a | Airbus A320-100/200, Airbus A320neo | 4,940 | 0m |
| United AirlinesSeasonal or ended | n/a | Boeing 737 MAX 8 | 6,116 | 4h 54m |
Airlines are the operating carrier: regional airlines such as SkyWest or Horizon often fly under a larger airline's brand.
Flights by month
| Month | Flights | Flights, relative | Passengers |
|---|---|---|---|
| August 2025 | 14 | 1,063 | |
| November 2025 | 5 | 748 | |
| December 2025 | 24 | 3,179 | |
| January 2026 | 22 | 2,640 | |
| February 2026 | 6 | 973 | |
| March 2026 | 9 | 1,346 | |
| April 2026 | 8 | 1,107 |
Related
Source: US Department of Transportation, T-100 Segment data, August 2025 to July 2026.