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BFI to SZR: distance & flight time
Seattle (Boeing Field King County International Airport) → Stara Zagora (Stara Zagora Airport)
5,924 mi
9,533 km · 5,148 nm
12h 5m
estimated nonstop flight time
+10h
time difference · heading northeast
See live BFI→SZR fares Phone-only fares on this route — call free
Flight time details
5,924 miles nonstop takes roughly 12h 5m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 10-hour time gain when reading arrival times on your ticket.
The two airports
- BFI — Boeing Field King County International Airport · Seattle, United States
- SZR — Stara Zagora Airport · Stara Zagora, Bulgaria
Distances are great-circle ("as the crow flies") — the same basis airlines use for frequent-flyer miles.
Alternate airports can cut this fare
Flying from or into a nearby airport is the #1 trick our agents use to beat online prices. Call and we'll compare every combination on one call.
Near BFI
- SEA · Seattle Tacoma International Airport6 mi away
- RNT · Renton Municipal Airport5 mi away
- PWT · Bremerton National Airport22 mi away
- TIW · Tacoma Narrows Airport22 mi away
Near SZR
- JAM · Bezmer Air Base36 mi away
- PDV · Plovdiv International Airport46 mi away
- GOZ · Gorna Oryahovitsa Airport54 mi away
- BOJ · Burgas Airport96 mi away
Frequently asked questions
How far is BFI from SZR?
The flight distance from Seattle (BFI) to Stara Zagora (SZR) is 5,924 miles (9,533 km, 5,148 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from BFI to SZR?
A nonstop flight takes about 12h 5m gate to gate. Actual time varies with winds, routing and season — eastbound transatlantic flights, for example, are usually faster than the return.
What is the time difference between Seattle and Stara Zagora?
Stara Zagora is 10 hours ahead of Seattle.
What is the cheapest way to fly from BFI to SZR?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on BFI–SZR that never appear on search engines, with no booking fees.