Part of the data ring
FlyTime
SOF → FRA

Sofia to Frankfurt am Main

2h 09mgate to gate

The flight from Sofia Airport (SOF) to Frankfurt Main Airport (FRA) covers 1,398 km (868 miles) and takes approximately 2h 09m gate to gate for a typical jet.

The route heads north-west on an initial great-circle bearing of 311°, passing near 46.6° N, 16.5° E at its midpoint.

Great-circle strip Plate SOF–FRA
2h 09mGATE TO GATE32m1h 37mSOFSofiaFRAFrankfurt am Main311° NORTH-WEST755 NM03496991,0481,398 km

Bearing 311° north-west Midpoint 46.6° N, 16.5° E Model 805 km/h + 25 min

SOURCE·OurAirports + great-circle computation·REVIEWED JUL 2026

Flight time2h 09mestimated, gate to gate
Distance1,398km · 868 mi
Nautical755nautical miles
Direction311°north-west

How this is worked out

  1. Take both airports' published coordinates from OurAirports — nothing here is scraped from another flight site.
  2. Great-circle distance by haversine on a mean earth radius of 6,371.0088 km: 1,398 km.
  3. Airborne time = that distance ÷ 805 km/h, a representative jet cruise speed: 1h 44m.
  4. Add a flat 25 minutes for pushback, taxi, climb, descent and taxi-in — the reason a 400 km hop is never half an hour: 2h 09m gate to gate.
  5. Winds, aircraft type and airline schedule padding are not modelled. The cruise-speed table shows how much that assumption is worth.
1,398 km / 805 km/h = 1h 44m airborne
            + 25 min ground = 2h 09m gate to gate

The full model, and what it ignores →

SOURCE·OurAirports + great-circle computation·REVIEWED JUL 2026

The same route, plotted on a world grid

The strip above gives the route its length and its shape. This gives it a position: latitude and longitude only, no coastlines, because a hand-drawn coastline would be decoration pretending to be data. On a flat grid the shortest path looks bent; on a globe it is straight.

SOF FRA

Flight time at different cruise speeds

Aircraft type, winds and routing all move the real number. This is the same distance flown at different speeds, plus the 25-minute ground and climb allowance.

Typical ofCruise speedAirborneGate to gate
Turboprop / regional550 km/h2h 32m2h 58m
Narrowbody jet (A320, 737)780 km/h1h 48m2h 13m
Widebody jet (777, 787, A350)900 km/h1h 33m1h 58m
Private jet (Gulfstream)850 km/h1h 39m2h 04m

Headwinds on an eastbound long-haul routinely add 30–60 minutes; the same route westbound can be quicker. Airlines publish schedules with padding built in.

SOURCE·OurAirports + great-circle computation·REVIEWED JUL 2026

Both airports

SOFFRA
AirportSofia AirportFrankfurt Main Airport
CitySofiaFrankfurt am Main
CountryBulgariaGermany
ICAOLBSFEDDF
Coordinates42.6964, 23.417750.0267, 8.5584
Elevation1,742 ft364 ft

Every figure on this plate is geometry. The shape of the earth is knowable; the airline's schedule is not.

Questions this plate answers

How long is the flight from Sofia to Frankfurt am Main?

A non-stop flight from Sofia (SOF) to Frankfurt am Main (FRA) takes about 2h 09m. The great-circle distance is 1,398 km (868 miles, 755 nautical miles), flying north-west on an initial bearing of 311°.

How far is Sofia from Frankfurt am Main?

1,398 kilometres in a straight line over the earth's surface — 868 miles or 755 nautical miles. Actual flown distance is usually 2–5% longer because aircraft follow airways, avoid weather and route around restricted airspace.

Is there a non-stop flight between SOF and FRA?

This page calculates the direct-line time and distance; it does not track airline schedules. At 1,398 km the route is comfortably within range of a non-stop service if an airline chooses to fly it. Check an airline or booking site for what is actually scheduled.

Airport coordinates from OurAirports (public domain). Distance is a great-circle calculation; flight time uses the model described on the method page. Flight times are great-circle estimates for planning only — always check the airline's published schedule.

See all 10 sites in this family, with what each one answers

Published by

Amit Sharma

Auckland real-estate agent and marketer. Builds free, sourced data tools.