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

Based on current 6-month forward fare data, May 2026 is the cheapest month to fly from Seattle (SEA) to Sofia (SOF), with fares starting from $373.

What is the lowest current fare from SEA to SOF?

The lowest currently-listed fare from Seattle (SEA) to Sofia (SOF) is $373 on 2026-05-31.

Is there a direct flight from Seattle to Sofia?

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

Cheap flights from Seattle to Sofia

Cheapest current fares: $373 in May 2026 on connecting flights.

Last updated May 22, 2026 · By Flightmaps Editorial

Cheapest month-by-month fares

Lowest available fare per calendar month from Seattle (SEA) to Sofia (SOF). Refreshed daily.

Seattle (SEA) → Sofia (SOF)

May 2026 $373
August 2026 $421
July 2026 $476

Frequently asked questions

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

Based on current 6-month forward fare data, May 2026 is the cheapest month to fly from Seattle (SEA) to Sofia (SOF), with fares starting from $373.
What is the lowest current fare from SEA to SOF?

The lowest currently-listed fare from Seattle (SEA) to Sofia (SOF) is $373 on 2026-05-31.
Is there a direct flight from Seattle to Sofia?

There is currently no non-stop service from SEA to SOF. 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.