What is the cheapest month to fly from Sofia to Dulles?

Based on current 6-month forward fare data, September 2026 is the cheapest month to fly from Sofia (SOF) to Dulles (IAD), with fares starting from $558.

What is the lowest current fare from SOF to IAD?

The lowest currently-listed fare from Sofia (SOF) to Dulles (IAD) is $558 on 2026-09-05.

Is there a direct flight from Sofia to Dulles?

There is currently no non-stop service from SOF to IAD. Most travellers connect through a hub airport. See our route page for current stopover options.

Cheap flights from Sofia to Dulles

Cheapest current fares: $558 in September 2026 on connecting flights.

Last updated August 4, 2026 · By Flightmaps Editorial

Cheapest month-by-month fares

Lowest available fare per calendar month from Sofia (SOF) to Dulles (IAD). Refreshed daily.

Sofia (SOF) → Dulles (IAD)

September 2026 $558

Frequently asked questions

What is the cheapest month to fly from Sofia to Dulles?

Based on current 6-month forward fare data, September 2026 is the cheapest month to fly from Sofia (SOF) to Dulles (IAD), with fares starting from $558.
What is the lowest current fare from SOF to IAD?

The lowest currently-listed fare from Sofia (SOF) to Dulles (IAD) is $558 on 2026-09-05.
Is there a direct flight from Sofia to Dulles?

There is currently no non-stop service from SOF to IAD. Most travellers connect through a hub airport. See our route page for current stopover options.

Related guides for this route

Sibling pages — full route detail, airport overviews, visa context, per-airline routes.