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ISM to SOF: distance & flight time
Kissimmee (Kissimmee Gateway Airport) → Sofia (Sofia Airport)
5,600 mi
9,013 km · 4,866 nm
11h 27m
estimated nonstop flight time
+7h
time difference · heading northeast
See live ISM→SOF fares Phone-only fares on this route — call free
Flight time details
5,600 miles nonstop takes roughly 11h 27m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 7-hour time gain when reading arrival times on your ticket.
The two airports
- ISM — Kissimmee Gateway Airport · Kissimmee, 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 ISM
- MCO · Orlando International Airport12 mi away
- ORL · Orlando Executive Airport19 mi away
- GIF · Winter Haven Regional Airport - Gilbert Field25 mi away
- TPA · Tampa International Airport70 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 ISM from SOF?
The flight distance from Kissimmee (ISM) to Sofia (SOF) is 5,600 miles (9,013 km, 4,866 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from ISM to SOF?
A nonstop flight takes about 11h 27m 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 Kissimmee and Sofia?
Sofia is 7 hours ahead of Kissimmee.
What is the cheapest way to fly from ISM to SOF?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on ISM–SOF that never appear on search engines, with no booking fees.