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BOI to SOF: distance & flight time
Boise (Boise Air Terminal/Gowen Field) → Sofia (Sofia Airport)
5,974 mi
9,615 km · 5,192 nm
12h 11m
estimated nonstop flight time
+9h
time difference · heading northeast
See live BOI→SOF fares Phone-only fares on this route — call free
Flight time details
5,974 miles nonstop takes roughly 12h 11m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 9-hour time gain when reading arrival times on your ticket.
The two airports
- BOI — Boise Air Terminal/Gowen Field · Boise, United States
- SOF — Sofia Airport · Sofia, 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 BOI
- MUO · Mountain Home Air Force Base40 mi away
- ONO · Ontario Municipal Airport50 mi away
- MYL · McCall Municipal Airport92 mi away
- SUN · Friedman Memorial Airport97 mi away
Near SOF
- PDV · Plovdiv International Airport85 mi away
- INI · Nis Airport90 mi away
- SKP · Skopje Alexander the Great Airport105 mi away
- CRA · Craiova Airport115 mi away
Frequently asked questions
How far is BOI from SOF?
The flight distance from Boise (BOI) to Sofia (SOF) is 5,974 miles (9,615 km, 5,192 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from BOI to SOF?
A nonstop flight takes about 12h 11m 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 Boise and Sofia?
Sofia is 9 hours ahead of Boise.
What is the cheapest way to fly from BOI to SOF?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on BOI–SOF that never appear on search engines, with no booking fees.