AirportMiles

Seoul (ICN) – Kaohsiung (KHH)

Flights on GoogleSkyscanner
Distance, flight time and the airlines that fly it, from open data.
Distance
1,751 km
1,088 mi · 946 nm
Flight time
2 h 50 min
Estimate from distance
Time difference
1 h
CO2 per passenger
221 kg
One way, economy, incl. RF (131 kg CO2 only)
Passengers, 6 months
186,708
Jan 2026 – Jun 2026
Flights / week
41
Both directions, average
Seats filled
—
Airlines nonstop
3
CI, TW, BR

Traffic: Incheon International Airport Corporation (Korea), scheduled passenger flights, Jan 2026 – Jun 2026. Distance: WGS-84 ellipsoid. CO2: UK DESNZ 2026 factors. Sources

Great circle from ICN to KHHICNKHH
Shortest path over the earth's surface (great circle). Real flights bend around weather, winds and airspace.

The way there

Heading from ICN
201°
Heading from KHH
18°
Halfway point
30.06, 123.17
Great-circle km
1,756 km (sphere, for EU261)
Clocks
Kaohsiung is 1 h behind Seoul

The estimate for a route without real times is 2 h 50 min; how it is worked out is on Sources.

Passengers per month, both directions (Jan 2026 – Jun 2026)Busiest: January 2026: 38,107 passengers
020K40KJan38.1KFebMarAprMayJun
Show as a table
Month Passengers
Jan 202638,107
Feb 202634,753
Mar 202630,957
Apr 202629,433
May 202627,023
Jun 202626,435
Flights per month, both directions (Jan 2026 – Jun 2026)Busiest: January 2026: 186 flights
0100200Jan186FebMarAprMayJun
Show as a table
Month Flights
Jan 2026186
Feb 2026168
Mar 2026184
Apr 2026180
May 2026180
Jun 2026180

Airlines flying ICN–KHH nonstop

Airline Flights / week Share of passengers
CIChina Airlines14
36%
TWTrinity Airways14
32%
BREva Airways14
31%

Both directions, Jan 2026 – Jun 2026. Airlines with at least one flight a month. Incheon International Airport Corporation (Korea), scheduled passenger flights. Sources

Delay compensation (EU261 / UK261)

Measured by great-circle distance: 1,756 km.

Neither EU261 nor UK261 covers this route: it neither starts nor ends in the EU, EEA, Switzerland or the UK. Other countries have their own rules (for example Canada's APPR or Brazil's ANAC rules).

Also owed for a cancellation with less than 14 days' notice or denied boarding. Not owed for extraordinary circumstances. On a connection, the distance to the final destination counts. From 23 October 2027 the EU's Regulation 2026/2202 applies; it keeps these amounts (what changes in 2027). Information, not legal advice.

Every airport pair between Seoul and Kaohsiung

KHH
ICN1,751
GMP1,772

Kilometres. Linked numbers have a page of their own. All Seoul airports

More routes from ICN

Route Distance Passengers
ICN → NRT1,260 km 2,519,026 (6 mo)
ICN → KIX862 km 2,313,960 (6 mo)
ICN → FUK563 km 1,708,245 (6 mo)
ICN → HKG2,067 km 1,316,010 (6 mo)
ICN → TPE1,460 km 1,184,972 (6 mo)
ICN → PVG821 km 1,111,272 (6 mo)
ICN → BKK3,665 km 950,069 (6 mo)
ICN → DAD2,976 km 941,076 (6 mo)
ICN → SIN4,614 km 900,158 (6 mo)
ICN → TAO580 km 797,360 (6 mo)

More routes from KHH

Route Distance Passengers / year
KHH → SEA10,051 km 170

Questions

Seoul (ICN) and Kaohsiung (KHH) are 1,751 km (1,088 miles, 946 nautical miles) apart, measured along the shortest path over the earth's surface.