When is the Surabaya to Siem Reap route most turbulent?

See the monthly chart above for exact patterns. Transatlantic and mountain routes are typically roughest in winter (Dec–Mar). Tropical and Caribbean routes peak during monsoon season (Jul–Sep).

What aircraft operates the SUB to REP route?

The SUB–REP route is typically operated by Airbus A320 · Boeing 737. Airlines include Singapore Airlines, AirAsia, Thai Airways.

Is turbulence on SUB to REP dangerous?

No — turbulence on the SUB–REP route is not dangerous to the aircraft. Modern commercial aircraft are built to withstand far more stress than any turbulence encountered. The main risk is to unbelted passengers. Always keep your seatbelt fastened when seated.

How can I check turbulence before my SUB to REP flight?

Use the Turbulence Forecast app (iOS & Android) for real-time PIREPs, SIGMET alerts, and AI-powered forecasts for the SUB–REP route. The app shows minute-by-minute turbulence timing for your specific flight date.

SUB to REP Turbulence Forecast

Q: Is the Surabaya to Siem Reap flight turbulent?

The SUB–REP route typically experiences smooth turbulence.

Q: Which seat is smoothest on SUB to REP?

Wing seats are smoothest. On a Airbus A320 · Boeing 737, that's rows 10–20. Avoid the rear of the aircraft where turbulence is felt most.

Q: How long is the flight from SUB to REP?

The SUB to REP flight takes approximately 3h 50m, covering 1,563 miles (1,358 nautical miles) at a cruising altitude of 35,000 feet.

Is the Surabaya to Siem Reap flight turbulent? Live forecast & historical patterns.

Live forecast

SUB

→

REP

Surabaya · Siem Reap · 3h 50m

23.9

Turb Score

3h 50m

Duration

1,358 nm

Distance

35,000 ft

Cruise Alt.

Smooth

Typical

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Typical turbulence along the route

Historical average pattern for SUB–REP

0h1h2h3h4h5h6h3h 50m

Smooth

Light

Moderate

Heavy

About the SUB–REP route

The Surabaya to Siem Reap route crosses the North Atlantic, where the jet stream is the primary source of turbulence. Flying at 35,000 feet, the aircraft encounters the strongest bumps roughly 2–5 hours into the flight. This is clear-air turbulence — no clouds, no visual warning — which makes a pre-flight forecast especially valuable.

The route is served by Singapore Airlines, AirAsia, Thai Airways on Airbus A320 · Boeing 737 aircraft, with flights typically cruising at 35,000 feet over a distance of 1,563 miles (1,358 nautical miles).

💡 Tip: Turbulence peaks mid-flight over the Atlantic. First and last hour are usually smooth.

Surabaya to Siem Reap Flight Time

How long is the flight from SUB to REP?

3h 50m

Flight Time

1,563 mi

Distance

35,000 ft

Cruising Altitude

Airbus A320

Aircraft

The Surabaya (SUB) to Siem Reap (REP) flight takes approximately 3h 50m, covering 1,563 miles (1,358 nautical miles) at 35,000 feet. The route is operated by Singapore Airlines, AirAsia, Thai Airways. Return flights (REP to SUB) take a similar time, though westbound transatlantic and transpacific routes are typically 30–60 minutes longer due to headwinds.

Turbulence levels on SUB–REP

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

Get minute-by-minute timing for your specific flight

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Best time to fly SUB–REP

Turbulence by month

Smooth

Light

Moderate

Rough

Best seat on SUB–REP

Airbus A320

Front

Rows 1–9

Light

✓ Wing

Rows 10–20

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

Charlotte → Siem Reap

See all transatlantic flights →

Related guides

Learn more about flight turbulence

Turbulence Tracker

Track any flight in real time

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Best Seat Guide

Which rows feel turbulence least

→

Turbulence Forecast Map

Global turbulence outlook

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Passenger Reports

Was nervous about this flight but honestly didn't need to be. Smooth the whole way, the 3h 50m went by fast.

First-time passenger · April

Totally smooth August flight. The seatbelt sign came on once briefly over the subcontinent but nothing actually happened. Great trip.

Leisure traveler · August

Did Surabaya to Siem Reap last January and it was genuinely one of the smoothest long-haul flights I've had. Barely any movement the whole way.

Frequent flyer · January

All SUB routes→ All REP routes→

Frequently asked questions

Is the Surabaya to Siem Reap flight turbulent?

The SUB–REP route typically experiences smooth turbulence. The turbulence score for this route is 23.9/100.

When is turbulence worst on SUB to REP?

Turbulence peaks mid-flight over the Atlantic. First and last hour are usually smooth. Check the turbulence chart above for the typical pattern along this specific route.

Which seat is smoothest on SUB to REP?

Wing seats are always the smoothest. On a Airbus A320 (the most common aircraft on this route), that's rows 10–20. Avoid the very rear of the aircraft — it amplifies turbulence motion.

How long is the flight from SUB to REP?

The SUB to REP flight takes approximately 3h 50m, covering 1,563 miles (1,358 nautical miles).

Which airlines fly SUB to REP?

The main airlines operating this route are Singapore Airlines, AirAsia, Thai Airways, flying Airbus A320 · Boeing 737 aircraft.

Data Sources

PIREP — Pilot reports (PIREPs) submitted via FAA/ICAO systems, aggregated over 12+ months of historical data
SIGMET / AIRMET — Significant Meteorological Information bulletins from NOAA Aviation Weather Center
EDR data — Eddy Dissipation Rate measurements from commercial aircraft (ADS-B derived turbulence intensity)
Seasonal patterns — 5-year rolling averages of turbulence frequency and intensity by month for this route

Scores represent typical conditions. Actual turbulence varies daily. For real-time forecasts, use the Turbulence Forecast app. · About our data