Part of the data ring
FlyTime
CPT → ICN

Cape Town to Seoul

17h 23mgate to gate

The flight from Cape Town International Airport (CPT) to Incheon International Airport (ICN) covers 13,654 km (8,484 miles) and takes approximately 17h 23m gate to gate for a typical jet.

The route heads north-east on an initial great-circle bearing of 64°, passing near 3.0° N, 70.8° E at its midpoint.

Great-circle strip Plate CPT–ICN
17h 23mGATE TO GATE4h 21m13h 02mCPTCape TownICNSeoul64° NORTH-EAST7,373 NM03,4146,82710,24113,654 km

Bearing 64° north-east Midpoint 3.0° N, 70.8° E Model 805 km/h + 25 min

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

Flight time17h 23mestimated, gate to gate
Distance13,654km · 8,484 mi
Nautical7,373nautical miles
Direction64°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: 13,654 km.
  3. Airborne time = that distance ÷ 805 km/h, a representative jet cruise speed: 16h 58m.
  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: 17h 23m 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.
13,654 km / 805 km/h = 16h 58m airborne
            + 25 min ground = 17h 23m 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.

CPT ICN

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/h24h 50m25h 15m
Narrowbody jet (A320, 737)780 km/h17h 30m17h 56m
Widebody jet (777, 787, A350)900 km/h15h 10m15h 35m
Private jet (Gulfstream)850 km/h16h 04m16h 29m

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

CPTICN
AirportCape Town International AirportIncheon International Airport
CityCape TownSeoul
CountrySouth AfricaSouth Korea
ICAOFACTRKSI
Coordinates-33.974, 18.604337.4691, 126.451
Elevation151 ft23 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 Cape Town to Seoul?

A non-stop flight from Cape Town (CPT) to Seoul (ICN) takes about 17h 23m. The great-circle distance is 13,654 km (8,484 miles, 7,373 nautical miles), flying north-east on an initial bearing of 64°.

How far is Cape Town from Seoul?

13,654 kilometres in a straight line over the earth's surface — 8,484 miles or 7,373 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 CPT and ICN?

This page calculates the direct-line time and distance; it does not track airline schedules. At 13,654 km the route is within reach of long-range widebodies, though not every city pair is served non-stop. Check an airline or booking site for what is actually scheduled.

What should I expect on a 17h 23m 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.