Part of the data ring
FlyTime
GMP → PKX

Seoul to Beijing

1h 34mgate to gate

The flight from Seoul Gimpo International Airport (GMP) to Beijing Daxing International Airport (PKX) covers 928 km (576 miles) and takes approximately 1h 34m gate to gate for a typical jet.

The route heads west on an initial great-circle bearing of 287°, passing near 38.6° N, 121.7° E at its midpoint.

Great-circle strip Plate GMP–PKX
1h 34mGATE TO GATE24m1h 11mGMPSeoulPKXBeijing287° WEST501 NM0232464696928 km

Bearing 287° west Midpoint 38.6° N, 121.7° E Model 805 km/h + 25 min

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

Flight time1h 34mestimated, gate to gate
Distance928km · 576 mi
Nautical501nautical miles
Direction287°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: 928 km.
  3. Airborne time = that distance ÷ 805 km/h, a representative jet cruise speed: 1h 09m.
  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: 1h 34m 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.
928 km / 805 km/h = 1h 09m airborne
            + 25 min ground = 1h 34m 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.

GMP PKX

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/h1h 41m2h 06m
Narrowbody jet (A320, 737)780 km/h1h 11m1h 37m
Widebody jet (777, 787, A350)900 km/h1h 02m1h 27m
Private jet (Gulfstream)850 km/h1h 05m1h 31m

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

GMPPKX
AirportSeoul Gimpo International AirportBeijing Daxing International Airport
CitySeoulBeijing
CountrySouth KoreaChina
ICAORKSSZBAD
Coordinates37.5583, 126.79139.5013, 116.414
Elevation59 ft98 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 Seoul to Beijing?

A non-stop flight from Seoul (GMP) to Beijing (PKX) takes about 1h 34m. The great-circle distance is 928 km (576 miles, 501 nautical miles), flying west on an initial bearing of 287°.

How far is Seoul from Beijing?

928 kilometres in a straight line over the earth's surface — 576 miles or 501 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 GMP and PKX?

This page calculates the direct-line time and distance; it does not track airline schedules. At 928 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.