When is the Atlanta 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 ATL to REP route?

The ATL–REP route is typically operated by Boeing 777-300ER · Boeing 787-9. Airlines include United, American Airlines, Delta.

Is turbulence on ATL to REP dangerous?

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

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

ATL to REP Turbulence Forecast

Q: Is the Atlanta to Siem Reap flight turbulent?

The ATL–REP route typically experiences light turbulence.

Q: Which seat is smoothest on ATL to REP?

Wing seats are smoothest. On a Boeing 777-300ER · Boeing 787-9, that's rows 22–42. Avoid the rear of the aircraft where turbulence is felt most.

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

The ATL to REP flight takes approximately 17h 50m, covering 9,141 miles (7,943 nautical miles) at a cruising altitude of 37,000 feet.

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

Live forecast

ATL

→

REP

Atlanta · Siem Reap · 17h 50m

40.6

Turb Score

17h 50m

Duration

7,943 nm

Distance

37,000 ft

Cruise Alt.

Light

Typical

⚠️ Light turbulence today

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Typical turbulence along the route

Historical average pattern for ATL–REP

0h1h2h3h4h5h6h17h 50m

Smooth

Light

Moderate

Heavy

About the ATL–REP route

The Atlanta to Siem Reap route spans the Pacific Ocean — one of the longest commercial flight paths in the world at 9,141 miles. The Pacific jet stream creates moderate turbulence, typically around 3–7 hours into the flight. The sheer length of the route means passengers experience varying conditions: calm stretches punctuated by bumpy patches.

The route is served by United, American Airlines, Delta on Boeing 777-300ER · Boeing 787-9 aircraft, with flights typically cruising at 37,000 feet over a distance of 9,141 miles (7,943 nautical miles).

💡 Tip: Long flight — turbulence varies throughout. Wing seats significantly reduce motion.

Atlanta to Siem Reap Flight Time

How long is the flight from ATL to REP?

17h 50m

Flight Time

9,141 mi

Distance

37,000 ft

Cruising Altitude

Boeing 777-300ER

Aircraft

The Atlanta (ATL) to Siem Reap (REP) flight takes approximately 17h 50m, covering 9,141 miles (7,943 nautical miles) at 37,000 feet. The route is operated by United, American Airlines, Delta. Return flights (REP to ATL) take a similar time, though westbound transatlantic and transpacific routes are typically 30–60 minutes longer due to headwinds.

Turbulence levels on ATL–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 ATL–REP

Turbulence by month

Smooth

Light

Moderate

Rough

Best seat on ATL–REP

Boeing 777-300ER

Front

Rows 1–21

Light

✓ Wing

Rows 22–42

Smoothest

Rear

Rows 43+

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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Turbulence in 2025

Is turbulence getting worse?

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Turbulence Forecast Map

Global turbulence outlook

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Passenger Reports

A few bumpy patches somewhere over the ocean, lasted maybe half an hour total. Drink service was paused briefly. Not unusual for this time of year.

Frequent flyer · April

The 17h 50m flight had some light shaking around the halfway point. Nothing spilled, nobody panicked. Just normal flying.

Leisure traveler · April

There was some noticeable movement crossing the dateline 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 ATL routes→ All REP routes→

Frequently asked questions

Is the Atlanta to Siem Reap flight turbulent?

The ATL–REP route typically experiences light turbulence. The turbulence score for this route is 40.6/100.

When is turbulence worst on ATL to REP?

Long flight — turbulence varies throughout. Wing seats significantly reduce motion. Check the turbulence chart above for the typical pattern along this specific route.

Which seat is smoothest on ATL to REP?

Wing seats are always the smoothest. On a Boeing 777-300ER (the most common aircraft on this route), that's rows 22–42. Avoid the very rear of the aircraft — it amplifies turbulence motion.

How long is the flight from ATL to REP?

The ATL to REP flight takes approximately 17h 50m, covering 9,141 miles (7,943 nautical miles).

Which airlines fly ATL to REP?

The main airlines operating this route are United, American Airlines, Delta, flying Boeing 777-300ER · Boeing 787-9 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