Nonstop flights from Washington to San José
3 airlines fly from 2 Washington airports (IAD and BWI) to San José (SJO).
Routes
2 airport pairs- IAD to SJODulles to Juan Santamaría6 a week
- BWI to SJOBaltimore/Washington International Thurgood Marshall to Juan Santamaría5 a week
When they leave
Washington timeOne overnight flight at 1:30 AM, then two in the morning, 8:20 AM to 8:59 AM.
Every flight
Earliest first- 8:20 AM→12:05 PMBWI to SJO
Southwest AirlinesResumes Nov 7Boeing 737 MAX 8 · 4h 45mMon, Thu, Fri, Sat, Sun
Schedules last checked Oct 6, 2026. Times are local.
Flying from Washington to San José
Southwest Airlines flies most often, 5 times a week on the Boeing 737 MAX 8. United Airlines flies 4 times a week on the Boeing 737 MAX 8. Avianca flies on Fridays and Sundays.
Flights run every day except Wednesdays, up to 2 a day. The first arrival in San José is at 8:35 AM and the last at 12:05 PM.
IAD to SJO is the busiest airport pair, with 6 flights a week, then BWI to SJO with 5.
On IAD to SJO, United Airlines starts on Oct 31. On IAD to SJO, Avianca is back on Nov 20 and flies until Nov 22. On BWI to SJO, Southwest Airlines is back on Nov 7.
Flying back, San José to Washington has 6 nonstop flights a week.
Return flights
Find the cheapest day to fly from Washington to San José.
Schedules as of Oct 9, 2026.