JetSetAuthority

Route · Trans-Pacific

ATL Atlanta ⇄ ICN Seoul

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

Distance11,487 km7,138 mi6,203 nautical miles
ATL → ICN14 h 40 minestimated block time
ICN → ATL13 h 35 minestimated block time
Clock change+13 hSeoul vs Atlanta, today
Great-circle route from Atlanta (ATL) to Seoul (ICN)ATLAtlantaICNSeoul
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

ATL → ICN

14 h 40 min

Estimated gate-to-gate scheduled time. Initial heading 335° (NNW).

Leave Atlanta Sat 7 Nov, 10:00 local → arrive Seoul Sun 8 Nov, 14:40 local +1 day.

ICN → ATL

13 h 35 min

Estimated gate-to-gate scheduled time. Initial heading 26° (NNE).

Leave Seoul Sat 7 Nov, 10:00 local → arrive Atlanta Sat 7 Nov, 09:35 local.

ICN-bound flights are the slower direction by about 65 minutes in our estimate: the route runs partly 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 distance11,487 km · 7,138 mi · 6,203 nmi
Initial heading335° (NNW) from ATL; 26° (NNE) from ICN
Farthest from the equator69.6°N — the path arcs north of both airports
Crossesthe 180th meridian (International Date Line area)
Share of the longest possible trip57% of the 20,015 km to the far side of the Earth

Time zones and jet lag

ATLAmerica/New_York — UTC−4 now; UTC−5 standard time, UTC−4 during daylight saving time
ICNAsia/Seoul — UTC+9 now; UTC+9 all year (no daylight saving time)
DifferenceSeoul is 13 hours ahead of Atlanta today; +14 h in January and +13 h in July because daylight saving time starts and ends on different dates (or not at all).

Jet lag, flying ATL → ICN. The clock change is 13 hours, but to your body that is a shift of 11 hours the other way. Your body clock has to move 11 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 11 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

ATL Hartsfield Jackson Atlanta International AirportAtlanta, United States · longest runway 12,390 ft3,776 m ICN Incheon International AirportSeoul, South Korea · longest runway 13,123 ft4,000 m

More routes from ATL and ICN

ATLCLT Atlanta – Charlotte 365 km227 mi · 1 h 25 min ATLORD Atlanta – Chicago 976 km607 mi · 2 h 10 min ATLCUN Atlanta – Cancún 1,421 km883 mi · 2 h 40 min ATLDEN Atlanta – Denver 1,927 km1,197 mi · 3 h 30 min ATLAMS Atlanta – Amsterdam 7,066 km4,390 mi · 8 h 30 min ATLJNB Atlanta – Johannesburg 13,583 km8,440 mi · 15 h 55 min ICNKIX Seoul – Osaka 860 km535 mi · 1 h 55 min ICNHKG Seoul – Hong Kong 2,069 km1,286 mi · 3 h 30 min YVRICN Vancouver – Seoul 8,200 km5,095 mi · 11 h FRAICN Frankfurt – Seoul 8,544 km5,309 mi · 10 h 15 min LAXICN Los Angeles – Seoul 9,625 km5,981 mi · 13 h JFKICN New York – Seoul 11,089 km6,890 mi · 13 h 55 min

Routes of a similar length

LAXBNE Los Angeles – Brisbane 11,533 km7,167 mi · 14 h 35 min IADADD Washington – Addis Ababa 11,563 km7,185 mi · 13 h 15 min SYDSCL Sydney – Santiago 11,340 km7,047 mi · 13 h 10 min DXBMEL Dubai – Melbourne 11,644 km7,235 mi · 13 h 50 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).