When is the Surabaya to Penang 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 PEN route?

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

Is turbulence on SUB to PEN dangerous?

No — turbulence on the SUB–PEN 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 PEN flight?

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

SUB to PEN Turbulence Forecast

Q: Is the Surabaya to Penang flight turbulent?

The SUB–PEN route typically experiences light turbulence.

Q: Which seat is smoothest on SUB to PEN?

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 PEN?

The SUB to PEN flight takes approximately 3h 15m, covering 1,229 miles (1,068 nautical miles) at a cruising altitude of 35,000 feet.

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

Live forecast

SUB

→

PEN

Surabaya · Penang · 3h 15m

33.8

Turb Score

3h 15m

Duration

1,068 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 SUB–PEN

0h1h2h3h4h5h6h3h 15m

Smooth

Light

Moderate

Heavy

About the SUB–PEN route

The Surabaya to Penang 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 1,229 miles (1,068 nautical miles).

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

Surabaya to Penang Flight Time

How long is the flight from SUB to PEN?

3h 15m

Flight Time

1,229 mi

Distance

35,000 ft

Cruising Altitude

Airbus A320

Aircraft

The Surabaya (SUB) to Penang (PEN) flight takes approximately 3h 15m, covering 1,229 miles (1,068 nautical miles) at 35,000 feet. The route is operated by Singapore Airlines, AirAsia, Thai Airways. Return flights (PEN 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–PEN

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–PEN

Turbulence by month

Smooth

Light

Moderate

Rough

Best seat on SUB–PEN

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

Surabaya → Phnom Penh

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

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 · April

Flew Surabaya–Penang in August, had some light turbulence in the middle portion of the flight. Brief and nothing concerning. This route is usually fine.

Business traveler · August

Some light chop over the subcontinent — seatbelt sign came on for maybe 20 minutes but nothing to worry about. Typical for this route in January.

Regular traveler · January

All SUB routes→ All PEN routes→

Frequently asked questions

Is the Surabaya to Penang flight turbulent?

The SUB–PEN route typically experiences light turbulence. The turbulence score for this route is 33.8/100.

When is turbulence worst on SUB to PEN?

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 PEN?

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 PEN?

The SUB to PEN flight takes approximately 3h 15m, covering 1,229 miles (1,068 nautical miles).

Which airlines fly SUB to PEN?

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