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RKNN → RKNYOpen in the mapper
ROUTE DISTANCE

Gangneung to Gonghang-roRKNN → RKNY

Gangneung Airport (K-18) (RKNN / KAG) in Gangneung, South Korea to Yangyang International Airport (RKNY / YNY) in Gonghang-ro, South Korea is 23 nautical miles — 43 kilometres, or 26 statute miles — on the great circle, on an initial bearing of 325°. A business jet at Mach 0.85 and FL410 takes about 0h 35m block time in still air.

Published by Overfly · Airport data: OurAirports, · Last updated

NAUTICAL MILES
23
KILOMETRES
43
STATUTE MILES
26
INITIAL BEARING
325°
BLOCK TIME
0h 35m
M0.85 · FL410 · still air

Can the aeroplane make it?

Range here is usable range — book range at long-range cruise, less a reserve allowance. It is the figure that decides whether the leg closes, and it is the question most mappers do not answer.

G650ER7,300 nm usable · 0%clears
G5506,550 nm usable · 0%clears
Global 75007,500 nm usable · 0%clears
Falcon 8X6,250 nm usable · 0%clears
Falcon 7X5,750 nm usable · 0%clears
Challenger 3503,000 nm usable · 1%clears
A350-9008,250 nm usable · 0%clears
B777-300ER7,120 nm usable · 0%clears
A320neo3,150 nm usable · 1%clears
A3203,150 nm usable · 1%clears
B737 MAX 83,250 nm usable · 1%clears
B737-8002,850 nm usable · 1%clears
An-1242,950 nm usable · 1%clears
Concorde3,650 nm usable · 1%clears
King Air 2001,400 nm usable · 2%clears
ATR 721,300 nm usable · 2%clears
Dash 8 Q4001,100 nm usable · 2%clears

How far from an airport?

Nowhere on the great circle is more than 3 minutes from a suitable airport at the one-engine diversion speed Overfly uses (430 kt in still air), so a twin-engine aircraft flies it under the 60-minute rule, with no ETOPS approval needed.

A suitable airport here is one OurAirports classes as large with a runway of 8,000 ft or more. An operator’s real alternates also depend on weather, fire cover and approval, and its diversion speed on the type. More in equal-time points and ETOPS, explained.

The two fields

RKNN / KAG
Gangneung Airport (K-18)
Gangneung, Gangwon Teukbyeoljachi-do (Gangwon Special Self-Governing Province), South Korea37.7536, 128.943911 m · 35 ft elevationlongest runway 08/26 · 2,743 m
RKNY / YNY
Yangyang International Airport
Gonghang-ro, Gangwon Teukbyeoljachi-do (Gangwon Special Self-Governing Province), South Korea38.0605, 128.669873 m · 241 ft elevationlongest runway 15/33 · 2,500 m

Questions people ask about this route

How far is it from Gangneung (RKNN) to Gonghang-ro (RKNY)?

23 nautical miles. That is 43 kilometres or 26 statute miles, measured as a great circle between Gangneung Airport (K-18) and Yangyang International Airport.

How long is the flight from Gangneung to Gonghang-ro?

About 0h 35m block time for a business jet cruising at Mach 0.85 at FL410 in still air, including 30 minutes of taxi, climb and descent. Wind moves that figure in either direction — eastbound across the North Atlantic or the Pacific it can be an hour or more. This page is deliberately still-air so the figure is stable and citable; to apply the month's average upper winds from NOAA, open the route in the mapper and switch on seasonal winds.

What is the initial bearing from Gangneung (RKNN) to Gonghang-ro (RKNY)?

325° true at the departure point. A great circle changes heading continuously, so this is the initial bearing, not a constant one.

Which aircraft can fly Gangneung to Gonghang-ro non-stop?

Of the types Overfly carries, G650ER, G550, Global 7500, Falcon 8X, Falcon 7X, Challenger 350, A350-900, B777-300ER, A320neo, A320, B737 MAX 8, B737-800, An-124, Concorde, King Air 200, ATR 72, Dash 8 Q400 clear it on usable range — that is book range less a reserve allowance.

Check it against your own aircraft
Open the route in the mapper to set cruise, flight level and reserve, edit the schedule, and add legs.
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NEARBY ROUTES

For reference and planning interest. Not for operational flight planning. Distances are great circle on a sphere from WGS-84 coordinates; block times assume still air. © 2026 Overfly.Flights