JetSetAuthority

Route · Australia, New Zealand and the Pacific

SYD Sydney ⇄ BKK Bangkok

Sydney Kingsford Smith International Airport (Australia) and Suvarnabhumi Airport (Thailand): great-circle distance, estimated scheduled flight time each way, time difference and jet lag.

Distance7,515 km4,669 mi4,058 nautical miles
SYD → BKK9 h 50 minestimated block time
BKK → SYD9 h 20 minestimated block time
Clock change−4 hBangkok vs Sydney, today
Great-circle route from Sydney (SYD) to Bangkok (BKK)SYDSydneyBKKBangkok
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

SYD → BKK

9 h 50 min

Estimated gate-to-gate scheduled time. Initial heading 306° (NW).

Leave Sydney Sat 7 Nov, 10:00 local → arrive Bangkok Sat 7 Nov, 15:50 local.

BKK → SYD

9 h 20 min

Estimated gate-to-gate scheduled time. Initial heading 136° (SE).

Leave Bangkok Sat 7 Nov, 10:00 local → arrive Sydney Sat 7 Nov, 23:20 local.

BKK-bound flights are the slower direction by about 30 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 distance7,515 km · 4,669 mi · 4,058 nmi
Initial heading306° (NW) from SYD; 136° (SE) from BKK
Farthest from the equator33.9°S
Crossesthe equator
Share of the longest possible trip38% of the 20,015 km to the far side of the Earth

Time zones and jet lag

SYDAustralia/Sydney — UTC+11 now; UTC+10 standard time, UTC+11 during daylight saving time
BKKAsia/Bangkok — UTC+7 now; UTC+7 all year (no daylight saving time)
DifferenceBangkok is 4 hours behind Sydney today; −4 h in January and −3 h in July because daylight saving time starts and ends on different dates (or not at all).

Jet lag, flying SYD → BKK. Your body clock has to move 4 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 4 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

SYD Sydney Kingsford Smith International AirportSydney, Australia · longest runway 12,999 ft3,962 m BKK Suvarnabhumi AirportBangkok, Thailand · longest runway 13,123 ft4,000 m

More routes from SYD and BKK

SYDCBR Sydney – Canberra 236 km147 mi · 1 h 20 min SYDCHC Sydney – Christchurch 2,126 km1,321 mi · 3 h 15 min SYDMNL Sydney – Manila 6,263 km3,892 mi · 8 h 20 min SYDICN Sydney – Seoul 8,343 km5,184 mi · 10 h 40 min DXBSYD Dubai – Sydney 12,043 km7,483 mi · 14 h 15 min LHRSYD London – Sydney 17,021 km10,576 mi · 19 h 30 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 DXBBKK Dubai – Bangkok 4,903 km3,047 mi · 6 h 20 min ISTBKK Istanbul – Bangkok 7,514 km4,669 mi · 9 h LHRBKK London – Bangkok 9,578 km5,951 mi · 11 h 15 min

Routes of a similar length

ATLGRU Atlanta – São Paulo 7,510 km4,667 mi · 9 h 25 min YVRNRT Vancouver – Tokyo 7,503 km4,662 mi · 10 h 20 min DENLHR Denver – London 7,497 km4,658 mi · 9 h 05 min ISTJNB Istanbul – Johannesburg 7,496 km4,658 mi · 9 h 35 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).