JetSetAuthority

Route · Trans-Pacific

HNL Honolulu ⇄ ICN Seoul

Daniel K. Inouye International Airport (United States) and Incheon International Airport (South Korea): great-circle distance, estimated scheduled flight time each way, time difference and jet lag.

Distance7,353 km4,569 mi3,970 nautical miles
HNL → ICN10 h 15 minestimated block time
ICN → HNL8 h 45 minestimated block time
Clock change+19 hSeoul vs Honolulu, today
Great-circle route from Honolulu (HNL) to Seoul (ICN)HNLHonoluluICNSeoul
The shortest path over the Earth’s surface (great circle), drawn on a Natural Earth projection. Real flight paths bend around weather, winds and closed airspace.

Flight time each way

HNL → ICN

10 h 15 min

Estimated gate-to-gate scheduled time. Initial heading 303° (WNW).

Leave Honolulu Sat 7 Nov, 10:00 local → arrive Seoul Sun 8 Nov, 15:15 local +1 day.

ICN → HNL

8 h 45 min

Estimated gate-to-gate scheduled time. Initial heading 81° (E).

Leave Seoul Sat 7 Nov, 10:00 local → arrive Honolulu Fri 6 Nov, 23:45 local -1 day.

ICN-bound flights are the slower direction by about 90 minutes in our estimate: the route runs mostly east–west through latitudes where the prevailing westerly winds at cruise height are strong, so heading east rides a tailwind and heading west fights a headwind. How we estimate it.

Distance

Great-circle distance7,353 km · 4,569 mi · 3,970 nmi
Initial heading303° (WNW) from HNL; 81° (E) from ICN
Farthest from the equator38.4°N
Crossesthe 180th meridian (International Date Line area)
Share of the longest possible trip37% of the 20,015 km to the far side of the Earth

Time zones and jet lag

HNLPacific/Honolulu — UTC−10 now; UTC−10 all year (no daylight saving time)
ICNAsia/Seoul — UTC+9 now; UTC+9 all year (no daylight saving time)
DifferenceSeoul is 19 hours ahead of Honolulu today.

Jet lag, flying HNL → ICN. The clock change is 19 hours, but to your body that is a shift of 5 hours the other way. Your body clock has to move 5 hours later, like a westward trip. A common rule of thumb is that the body clock adjusts by roughly one time zone a day, so expect up to about 5 days to fully adjust. Shifting later (as here) is usually the easier direction; evening daylight at the destination helps. Flying the other way, the shift is reversed.

General information, not medical advice.

The two airports

HNL Daniel K. Inouye International AirportHonolulu, United States · longest runway 12,360 ft3,767 m ICN Incheon International AirportSeoul, South Korea · longest runway 13,123 ft4,000 m

More routes from HNL and ICN

HNLOGG Honolulu – Maui (Kahului) 162 km101 mi · 1 h 15 min LAXHNL Los Angeles – Honolulu 4,108 km2,553 mi · 6 h 05 min YVRHNL Vancouver – Honolulu 4,354 km2,705 mi · 6 h 20 min HNLNRT Honolulu – Tokyo 6,136 km3,813 mi · 8 h 40 min HNLAKL Honolulu – Auckland 7,089 km4,405 mi · 9 h 15 min HNLSYD Honolulu – Sydney 8,170 km5,077 mi · 10 h 35 min ICNKIX Seoul – Osaka 860 km535 mi · 1 h 55 min ICNHKG Seoul – Hong Kong 2,069 km1,286 mi · 3 h 30 min SYDICN Sydney – Seoul 8,343 km5,184 mi · 10 h 40 min LHRICN London – Seoul 8,861 km5,506 mi · 10 h 40 min ORDICN Chicago – Seoul 10,519 km6,536 mi · 13 h 30 min ATLICN Atlanta – Seoul 11,487 km7,138 mi · 14 h 40 min

Routes of a similar length

MIACDG Miami – Paris 7,372 km4,580 mi · 8 h 45 min SYDHKG Sydney – Hong Kong 7,394 km4,595 mi · 9 h 35 min ATLFRA Atlanta – Frankfurt 7,409 km4,604 mi · 8 h 50 min ORDMUC Chicago – Munich 7,270 km4,517 mi · 8 h 45 min

Need a different pair? The flight-time calculator works for any two of 3,245 airports. Not covered: which airlines fly this route, schedules, fares and live status — that data is proprietary and we don’t guess it.

Photos on airport pages are credited there. Estimates are rounded to 5 minutes; typical error about 13 minutes (validation).