Part of the data ring
FlyTime
ZAG → SYD

Velika Gorica to Sydney (Mascot)

20h 20mgate to gate

The flight from Zagreb Franjo Tuđman International Airport (ZAG) to Sydney Kingsford Smith International Airport (SYD) covers 16,024 km (9,957 miles) and takes approximately 20h 20m gate to gate for a typical jet.

The route heads east on an initial great-circle bearing of 87°, passing near 14.8° N, 95.4° E at its midpoint.

Great-circle strip Plate ZAG–SYD
20h 20mGATE TO GATE5h 05m15h 15mZAGVelika GoricaSYDSydney (Mascot)87° EAST8,652 NM04,0068,01212,01816,024 km

Bearing 87° east Midpoint 14.8° N, 95.4° E Model 805 km/h + 25 min

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

Flight time20h 20mestimated, gate to gate
Distance16,024km · 9,957 mi
Nautical8,652nautical miles
Direction87°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: 16,024 km.
  3. Airborne time = that distance ÷ 805 km/h, a representative jet cruise speed: 19h 54m.
  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: 20h 20m 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.
16,024 km / 805 km/h = 19h 54m airborne
            + 25 min ground = 20h 20m 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.

ZAG SYD

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/h29h 08m29h 33m
Narrowbody jet (A320, 737)780 km/h20h 33m20h 58m
Widebody jet (777, 787, A350)900 km/h17h 48m18h 13m
Private jet (Gulfstream)850 km/h18h 51m19h 16m

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

ZAGSYD
AirportZagreb Franjo Tuđman International AirportSydney Kingsford Smith International Airport
CityVelika GoricaSydney (Mascot)
CountryCroatiaAustralia
ICAOLDZAYSSY
Coordinates45.7429, 16.0688-33.9461, 151.177
Elevation353 ft21 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 Velika Gorica to Sydney (Mascot)?

A non-stop flight from Velika Gorica (ZAG) to Sydney (Mascot) (SYD) takes about 20h 20m. The great-circle distance is 16,024 km (9,957 miles, 8,652 nautical miles), flying east on an initial bearing of 87°.

How far is Velika Gorica from Sydney (Mascot)?

16,024 kilometres in a straight line over the earth's surface — 9,957 miles or 8,652 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 ZAG and SYD?

This page calculates the direct-line time and distance; it does not track airline schedules. At 16,024 km the route is at the extreme end of what any airliner can fly non-stop, so a connection is likely. Check an airline or booking site for what is actually scheduled.

What should I expect on a 20h 20m 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.