How long is flight TG910?

The LHR to BKK route is the basis for the schedule. View the full route forecast and typical duration on the Turbcast route page.

Flight TG910

TG910 Turbulence ForecastThai Airways · LHR → BKK

About flight TG910

Airline: Thai Airways (TG)
Route: LHR → BKK
Typical Aircraft: A359
Distance: 9,578 km
Duration: 11h 38m
Cruise Altitude: FL410

See today’s turbulence forecast

Thai Airways TG910 flies the jet-stream + mountain-wave corridor from London to Bangkok. Conditions change hour to hour - view the live forecast for your departure date.

View live forecast

Check TG910 on a specific date

Turbulence on the LHR → BKK route

Jet-stream exposure on this corridor is significant. Long mid-latitude legs mean clear-air turbulence is the dominant source of bumps, typically encountered at cruise altitude. The route crosses or passes near the Tien Shan / Pamirs, Himalayas, which can generate mountain-wave turbulence downwind when upper-level winds are strong. Flying eastbound, aircraft usually benefit from tailwinds near the jet core, which trims flight time - but the edges of the jet are where clear-air turbulence most often sits.

Calmest season: Late spring to early autumn (May-September). Wind flowing over the Tien Shan / Pamirs can generate mountain-wave turbulence that extends hundreds of kilometres downwind - most pronounced in the northern winter (Nov-Mar), when upper-level winds are strongest.

Full LHR to BKK route guide

Frequently asked questions

Is TG910 usually a bumpy flight?

Thai Airways TG910 operates between LHR and BKK. Whether it’s bumpy depends on the day’s weather - Turbcast pulls live NOAA aviation-grade data so you can check the actual forecast for your departure date rather than relying on averages.

What aircraft does TG910 use?

TG910 is typically operated by the A359. Aircraft swaps happen - confirm with your booking before flying.

How long is the LHR to BKK flight?

Approximately 11h 38m direct, covering 9,578 km at a typical cruise of FL410.

When does TG910 have the smoothest weather?

Historically calmest during Late spring to early autumn (May-September). Forecast accuracy improves as you get closer to departure - within 48 hours the NOAA WAFS model is at peak skill.