Cheap flights from San Jose to Dulles
Cheapest current fares: $373 in September 2026, 3,289 km direct flight in ~3h 52m.
Cheapest month-by-month fares
Lowest available fare per calendar month from San Jose (SJO) to Dulles (IAD). Refreshed daily.
San Jose (SJO) → Dulles (IAD)
- September 2026 $373
Frequently asked questions
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What is the cheapest month to fly from San Jose to Dulles?
Based on current 6-month forward fare data, September 2026 is the cheapest month to fly from San Jose (SJO) to Dulles (IAD), with fares starting from $373.
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What is the lowest current fare from SJO to IAD?
The lowest currently-listed fare from San Jose (SJO) to Dulles (IAD) is $373 on 2026-09-09.
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How long is the flight from San Jose to Dulles?
Direct flights from SJO to IAD cover approximately 3,289 km (2,044 miles), with an estimated flight time of 3h 52m. Operating airlines: UA.
Related guides for this route
Sibling pages — full route detail, airport overviews, visa context, per-airline routes.