When is the Siem Reap to Surabaya 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 REP to SUB route?

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

Is turbulence on REP to SUB dangerous?

No — turbulence on the REP–SUB 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 REP to SUB flight?

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

REP to SUB Turbulence Forecast

Q: Is the Siem Reap to Surabaya flight turbulent?

The REP–SUB route typically experiences light turbulence.

Q: Which seat is smoothest on REP to SUB?

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 REP to SUB?

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

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

Live forecast

REP

→

SUB

Siem Reap · Surabaya · 3h 50m

30.3

Turb Score

3h 50m

Duration

1,358 nm

Distance

35,000 ft

Cruise Alt.

Light

Typical

⚠️ Light turbulence today

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Typical turbulence along the route

Historical average pattern for REP–SUB

0h1h2h3h4h5h6h3h 50m

Smooth

Light

Moderate

Heavy

About the REP–SUB route

The Siem Reap to Surabaya 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.

Siem Reap to Surabaya Flight Time

How long is the flight from REP to SUB?

3h 50m

Flight Time

1,563 mi

Distance

35,000 ft

Cruising Altitude

Airbus A320

Aircraft

The Siem Reap (REP) to Surabaya (SUB) 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 (SUB to REP) take a similar time, though westbound transatlantic and transpacific routes are typically 30–60 minutes longer due to headwinds.

Turbulence levels on REP–SUB

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 REP–SUB

Turbulence by month

Smooth

Light

Moderate

Rough

Best seat on REP–SUB

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

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Other popular routes with turbulence data

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Turbulence Tracker

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Best Seat Guide

Which rows feel turbulence least

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Turbulence Forecast Map

Global turbulence outlook

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Passenger Reports

Kids barely noticed the turbulence — just some mild bumps over the subcontinent. Seatbelt sign was on and off a couple times. Nothing dramatic.

Parent traveling with kids · April

Some light chop crossing the Himalayas — seatbelt sign came on for maybe 20 minutes but nothing to worry about. Typical for this route in July.

Regular traveler · July

There was some noticeable movement mid-flight that made me grip the armrest. My seatmate (clearly a regular) didn't even look up from their book. Perspective.

First-time flyer · January

All REP routes→ All SUB routes→

Frequently asked questions

Is the Siem Reap to Surabaya flight turbulent?

The REP–SUB route typically experiences light turbulence. The turbulence score for this route is 30.3/100.

When is turbulence worst on REP to SUB?

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 REP to SUB?

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 REP to SUB?

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

Which airlines fly REP to SUB?

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