When is the San Francisco to Hong Kong route most turbulent?

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

SFO to HKG Turbulence Forecast

Q: Is the San Francisco to Hong Kong flight turbulent?

The SFO–HKG route typically experiences light turbulence. Moderate turbulence expected — fasten seatbelt when seated.

Q: Which seat is smoothest on SFO to HKG?

Wing seats are smoothest. On a Airbus A350 · Boeing 777, that's rows 24–40. Avoid the rear of the aircraft.

Q: How long is the flight from SFO to HKG?

The SFO to HKG flight takes approximately 14h 0m, covering 7,938 miles at 39,000 feet.

Is the San Francisco to Hong Kong flight turbulent? Live forecast & historical patterns.

Live forecast

SFO

→

HKG

San Francisco · Hong Kong · 14h 0m

Turb Score

14h 0m

Duration

6,897 nm

Distance

39,000 ft

Cruise Alt.

Light

Typical

⚠️ Light turbulence today

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Typical turbulence along the route

Historical average pattern for SFO–HKG

0h1h2h3h4h5h6h14h 0m

Smooth

Light

Moderate

Heavy

About the SFO–HKG route

The San Francisco to Hong Kong route spans the Pacific Ocean — one of the longest commercial flight paths in the world at 7,938 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 Cathay Pacific, United Airlines on Airbus A350 · Boeing 777 aircraft, with flights typically cruising at 39,000 feet over a distance of 7,938 miles (6,897 nautical miles).

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

San Francisco to Hong Kong Flight Time

How long is the flight from SFO to HKG?

14h 0m

Flight Time

7,938 mi

Distance

39,000 ft

Cruising Altitude

Airbus A350

Aircraft

The San Francisco (SFO) to Hong Kong (HKG) flight takes approximately 14h 0m, covering 7,938 miles (6,897 nautical miles) at 39,000 feet. The route is operated by Cathay Pacific, United Airlines. Return flights (HKG to SFO) take a similar time, though westbound transatlantic and transpacific routes are typically 30–60 minutes longer due to headwinds.

Turbulence levels on SFO–HKG

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 SFO–HKG

Turbulence by month

Smooth

Light

Moderate

Rough

Best seat on SFO–HKG

Airbus A350

Front

Rows 1–23

Light

✓ Wing

Rows 24–40

Smoothest

Rear

Rows 41+

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

LAX → HKG

Los Angeles → Hong Kong

San Francisco → Tokyo

Moderate

SFO → ICN

San Francisco → Seoul

Moderate

LAX → SIN

Los Angeles → Singapore

Light

SFO → CDG

San Francisco → Paris

Light

See all transpacific flights →

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Is Turbulence Dangerous?

What the safety data shows

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Passenger Reports

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

Regular traveler · May

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

Parent traveling with kids · September

Flew San Francisco–Hong Kong in April, had some light turbulence in the middle portion of the flight. Brief and nothing concerning. This route is usually fine.

Business traveler · April

All SFO routes→ All HKG routes→

Frequently asked questions

Is the San Francisco to Hong Kong flight turbulent?

The SFO–HKG route typically experiences light turbulence. Moderate turbulence expected — fasten seatbelt when seated. The turbulence score for this route is 55/100.

When is turbulence worst on SFO to HKG?

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 SFO to HKG?

Wing seats are always the smoothest. On a Airbus A350 (the most common aircraft on this route), that's rows 24–40. Avoid the very rear of the aircraft — it amplifies turbulence motion.

How long is the flight from SFO to HKG?

The SFO to HKG flight takes approximately 14h 0m, covering 7,938 miles (6,897 nautical miles).

Which airlines fly SFO to HKG?

The main airlines operating this route are Cathay Pacific, United Airlines, flying Airbus A350 · Boeing 777 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