When is the Singapore 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 SIN to SUB route?

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

Is turbulence on SIN to SUB dangerous?

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

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

SIN to SUB Turbulence Forecast

Q: Is the Singapore to Surabaya flight turbulent?

The SIN–SUB route typically experiences light turbulence.

Q: Which seat is smoothest on SIN 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 SIN to SUB?

The SIN to SUB flight takes approximately 2h 20m, covering 856 miles (744 nautical miles) at a cruising altitude of 33,000 feet.

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

Live forecast

SIN

→

SUB

Singapore · Surabaya · 2h 20m

32.2

Turb Score

2h 20m

Duration

744 nm

Distance

33,000 ft

Cruise Alt.

Light

Typical

⚠️ Light turbulence today

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Typical turbulence along the route

Historical average pattern for SIN–SUB

0h1h2h3h4h5h6h2h 20m

Smooth

Light

Moderate

Heavy

About the SIN–SUB route

The Singapore to Surabaya route crosses the North Atlantic, where the jet stream is the primary source of turbulence. Flying at 33,000 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 33,000 feet over a distance of 856 miles (744 nautical miles).

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

Singapore to Surabaya Flight Time

How long is the flight from SIN to SUB?

2h 20m

Flight Time

856 mi

Distance

33,000 ft

Cruising Altitude

Airbus A320

Aircraft

The Singapore (SIN) to Surabaya (SUB) flight takes approximately 2h 20m, covering 856 miles (744 nautical miles) at 33,000 feet. The route is operated by Singapore Airlines, AirAsia, Thai Airways. Return flights (SUB to SIN) take a similar time, though westbound transatlantic and transpacific routes are typically 30–60 minutes longer due to headwinds.

Turbulence levels on SIN–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

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Best time to fly SIN–SUB

Turbulence by month

Smooth

Light

Moderate

Rough

Best seat on SIN–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

Similar routes

Other popular routes with turbulence data

SIN → LAX

Singapore → Los Angeles

Light

SIN → AMS

Singapore → Amsterdam

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

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Turbulence Forecast Map

Global turbulence outlook

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Passenger Reports

The 2h 20m flight had some light shaking around the halfway point. Nothing spilled, nobody panicked. Just normal flying.

Leisure traveler · April

Some light chop mid-flight — seatbelt sign came on for maybe 20 minutes but nothing to worry about. Typical for this route in December.

Regular traveler · December

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 SIN routes→ All SUB routes→

Frequently asked questions

Is the Singapore to Surabaya flight turbulent?

The SIN–SUB route typically experiences light turbulence. The turbulence score for this route is 32.2/100.

When is turbulence worst on SIN 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 SIN 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 SIN to SUB?

The SIN to SUB flight takes approximately 2h 20m, covering 856 miles (744 nautical miles).

Which airlines fly SIN 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