JetSetAuthority

Route · Asia

ICN Seoul ⇄ BKK Bangkok

Incheon International Airport (South Korea) and Suvarnabhumi Airport (Thailand): great-circle distance, estimated scheduled flight time each way, time difference and jet lag.

Distance3,669 km2,280 mi1,981 nautical miles
ICN → BKK5 h 25 minestimated block time
BKK → ICN5 hestimated block time
Clock change−2 hBangkok vs Seoul, today
Great-circle route from Seoul (ICN) to Bangkok (BKK)ICNSeoulBKKBangkok
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

ICN → BKK

5 h 25 min

Estimated gate-to-gate scheduled time. Initial heading 231° (SW).

Leave Seoul Sat 7 Nov, 10:00 local → arrive Bangkok Sat 7 Nov, 13:25 local.

BKK → ICN

5 h

Estimated gate-to-gate scheduled time. Initial heading 39° (NE).

Leave Bangkok Sat 7 Nov, 10:00 local → arrive Seoul Sat 7 Nov, 17:00 local.

BKK-bound flights are the slower direction by about 25 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 distance3,669 km · 2,280 mi · 1,981 nmi
Initial heading231° (SW) from ICN; 39° (NE) from BKK
Farthest from the equator37.5°N
Crossesneither the equator nor the 180th meridian
Share of the longest possible trip18% of the 20,015 km to the far side of the Earth

Time zones and jet lag

ICNAsia/Seoul — UTC+9 now; UTC+9 all year (no daylight saving time)
BKKAsia/Bangkok — UTC+7 now; UTC+7 all year (no daylight saving time)
DifferenceBangkok is 2 hours behind Seoul today.

Jet lag, flying ICN → BKK. Your body clock has to move 2 hours later, like a westward trip. A shift this small rarely causes much jet lag; most people feel normal within a day or so. Flying the other way, the shift is reversed.

General information, not medical advice.

The two airports

ICN Incheon International AirportSeoul, South Korea · longest runway 13,123 ft4,000 m BKK Suvarnabhumi AirportBangkok, Thailand · longest runway 13,123 ft4,000 m

More routes from ICN and BKK

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 BKKCNX Bangkok – Chiang Mai 597 km371 mi · 1 h 45 min BKKHAN Bangkok – Hanoi 995 km618 mi · 2 h 10 min SINBKK Singapore – Bangkok 1,417 km880 mi · 2 h 40 min DOHBKK Doha – Bangkok 5,280 km3,281 mi · 6 h 45 min SYDBKK Sydney – Bangkok 7,515 km4,669 mi · 9 h 50 min LHRBKK London – Bangkok 9,578 km5,951 mi · 11 h 15 min

Routes of a similar length

LAXIAD Los Angeles – Washington 3,674 km2,283 mi · 4 h 50 min AMMLHR Amman – London 3,683 km2,288 mi · 5 h 35 min JFKLAS New York – Las Vegas 3,609 km2,243 mi · 5 h 40 min LHRTLV London – Tel Aviv 3,589 km2,230 mi · 4 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).