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FNL to SOF: distance & flight time
Fort Collins (Northern Colorado Regional Airport) → Sofia (Sofia Airport)
5,852 mi
9,418 km · 5,085 nm
11h 56m
estimated nonstop flight time
+9h
time difference · heading northeast
See live FNL→SOF fares Phone-only fares on this route — call free
Flight time details
5,852 miles nonstop takes roughly 11h 56m 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
- FNL — Northern Colorado Regional Airport · Fort Collins, 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 FNL
- DEN · Denver International Airport45 mi away
- GXY · Greeley–Weld County Airport20 mi away
- WBU · Boulder Municipal Airport31 mi away
- BJC · Rocky Mountain Metropolitan Airport38 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 FNL from SOF?
The flight distance from Fort Collins (FNL) to Sofia (SOF) is 5,852 miles (9,418 km, 5,085 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from FNL to SOF?
A nonstop flight takes about 11h 56m 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 Fort Collins and Sofia?
Sofia is 9 hours ahead of Fort Collins.
What is the cheapest way to fly from FNL to SOF?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on FNL–SOF that never appear on search engines, with no booking fees.