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STS to SOF: distance & flight time
Santa Rosa (Charles M. Schulz Sonoma County Airport) → Sofia (Sofia Airport)
6,440 mi
10,363 km · 5,596 nm
13h 6m
estimated nonstop flight time
+10h
time difference · heading northeast
See live STS→SOF fares Phone-only fares on this route — call free
Flight time details
6,440 miles nonstop takes roughly 13h 6m 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
- STS — Charles M. Schulz Sonoma County Airport · Santa Rosa, 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 STS
- SFO · San Francisco International Airport66 mi away
- NOT · Marin County Airport - Gnoss Field29 mi away
- APC · Napa County Airport35 mi away
- UKI · Ukiah Municipal Airport47 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 STS from SOF?
The flight distance from Santa Rosa (STS) to Sofia (SOF) is 6,440 miles (10,363 km, 5,596 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from STS to SOF?
A nonstop flight takes about 13h 6m 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 Santa Rosa and Sofia?
Sofia is 10 hours ahead of Santa Rosa.
What is the cheapest way to fly from STS to SOF?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on STS–SOF that never appear on search engines, with no booking fees.