Part of the data ring
FlyTime
JFK → SOF

New York to Sofia

9h 50mgate to gate

The flight from John F. Kennedy International Airport (JFK) to Sofia Airport (SOF) covers 7,581 km (4,710 miles) and takes approximately 9h 50m gate to gate for a typical jet.

The route heads north-east on an initial great-circle bearing of 52°, passing near 53.4° N, 26.2° W at its midpoint.

Great-circle strip Plate JFK–SOF
9h 50mGATE TO GATE2h 28m7h 23mJFKNew YorkSOFSofia52° NORTH-EAST4,093 NM01,8953,7905,6857,581 km

Bearing 52° north-east Midpoint 53.4° N, 26.2° W Model 805 km/h + 25 min

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

Flight time9h 50mestimated, gate to gate
Distance7,581km · 4,710 mi
Nautical4,093nautical miles
Direction52°north-east

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: 7,581 km.
  3. Airborne time = that distance ÷ 805 km/h, a representative jet cruise speed: 9h 25m.
  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: 9h 50m 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.
7,581 km / 805 km/h = 9h 25m airborne
            + 25 min ground = 9h 50m 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.

JFK SOF

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/h13h 47m14h 12m
Narrowbody jet (A320, 737)780 km/h9h 43m10h 08m
Widebody jet (777, 787, A350)900 km/h8h 25m8h 51m
Private jet (Gulfstream)850 km/h8h 55m9h 20m

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

JFKSOF
AirportJohn F. Kennedy International AirportSofia Airport
CityNew YorkSofia
CountryUnited StatesBulgaria
ICAOKJFKLBSF
Coordinates40.6394, -73.779342.6964, 23.4177
Elevation13 ft1,742 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 New York to Sofia?

A non-stop flight from New York (JFK) to Sofia (SOF) takes about 9h 50m. The great-circle distance is 7,581 km (4,710 miles, 4,093 nautical miles), flying north-east on an initial bearing of 52°.

How far is New York from Sofia?

7,581 kilometres in a straight line over the earth's surface — 4,710 miles or 4,093 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 JFK and SOF?

This page calculates the direct-line time and distance; it does not track airline schedules. At 7,581 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.

What should I expect on a 9h 50m flight?

Anything past six hours is a long-haul flight: expect at least one meal service, a significant time-zone shift, and enough sitting that circulation and hydration start to matter. Cabin altitude, dry air and disrupted sleep do more damage to a training routine than the flight itself.

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.