BKK to KTM Turbulence Forecast

Q: Is the Bangkok to Kathmandu flight turbulent?

The BKK–KTM route typically experiences severe turbulence.

Q: Which seat is smoothest on BKK to KTM?

Wing seats are smoothest. On a Airbus A320, that's rows 14-20. Avoid the rear of the aircraft.

Q: How long is the flight from BKK to KTM?

The BKK to KTM flight takes approximately 3h 32m.

Is the Bangkok to Kathmandu flight turbulent? Live forecast & historical patterns.

Live forecast

BKK

→

KTM

Bangkok · Kathmandu · 3h 32m

10.5

Turb Score

3h 32m

Duration

1,397 nm

Distance

35,000 ft

Cruise Alt.

severe

Typical

⚠️ severe turbulence today

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Typical turbulence along the route

Historical average pattern for BKK–KTM

0h1h2h3h4h5h6h3h 32m

Smooth

Light

Moderate

Heavy

About the BKK–KTM route

The Bangkok to Kathmandu route crosses the Rocky Mountains — one of the most turbulent regions in North America. Mountain wave turbulence occurs when strong winds blow over mountain peaks, creating powerful invisible waves that extend to cruise altitude. The worst turbulence typically occurs in the first 30–60 minutes when the aircraft is climbing over the range.

The route is served by Thai Airways, Nepal Airlines, Buddha Air on Airbus A320 · Boeing 737 aircraft, with flights typically cruising at 35,000 feet over a distance of 1,608 miles (1,397 nautical miles).

💡 Tip: Mountain wave turbulence hits early. If flying over Rockies, expect the first hour to be bumpy.

Turbulence levels on BKK–KTM

What to expect at each phase of the flight

SmoothDeparture & arrival — climb and descent phases are generally calm

LightMinor bumps — drink stays in your cup, walking feels slightly unsteady

ModerateNoticeable bumps — stay seated with seatbelt on, service may pause

HeavyStrong jolts — unsecured items move, crew seated. Rare but possible

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Best time to fly BKK–KTM

Turbulence by month

Smooth

Light

Moderate

Rough

Best seat on BKK–KTM

Airbus A320

Front

Rows 1–13

Light

✓ Wing

Rows 14-20

Smoothest

Rear

Rows 21+

Rougher

Wing seats are over the center of gravity — least affected by turbulence.

What you'll see in the app

Full forecast, live map & seat recommendations

Similar routes

Other popular routes with turbulence data

See all mountain routes →

All BKK routes→ All KTM routes→

Frequently asked questions

Is the Bangkok to Kathmandu flight turbulent?

The BKK–KTM route typically experiences severe turbulence. The turbulence score for this route is 10.5/100.

When is turbulence worst on BKK to KTM?

Mountain wave turbulence hits early. If flying over Rockies, expect the first hour to be bumpy. Check the turbulence chart above for the typical pattern along this specific route.

Which seat is smoothest on BKK to KTM?

Wing seats are always the smoothest. On a Airbus A320 (the most common aircraft on this route), that's rows 14-20. Avoid the very rear of the aircraft — it amplifies turbulence motion.

How long is the flight from BKK to KTM?

The BKK to KTM flight takes approximately 3h 32m, covering 1,608 miles (1,397 nautical miles).

Which airlines fly BKK to KTM?

The main airlines operating this route are Thai Airways, Nepal Airlines, Buddha Air, flying Airbus A320 · Boeing 737 aircraft.