When is the Anchorage to Sapporo 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 ANC to CTS route?

The ANC–CTS route is typically operated by Boeing 757 · Airbus A330. Airlines include United, American Airlines, Delta.

Is turbulence on ANC to CTS dangerous?

No — turbulence on the ANC–CTS 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 ANC to CTS flight?

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

ANC to CTS Turbulence Forecast

Q: Is the Anchorage to Sapporo flight turbulent?

The ANC–CTS route typically experiences light turbulence.

Q: Which seat is smoothest on ANC to CTS?

Wing seats are smoothest. On a Boeing 757 · Airbus A330, that's rows 14–24. Avoid the rear of the aircraft where turbulence is felt most.

Q: How long is the flight from ANC to CTS?

The ANC to CTS flight takes approximately 6h 25m, covering 3,004 miles (2,610 nautical miles) at a cruising altitude of 37,000 feet.

Is the Anchorage to Sapporo flight turbulent? Live forecast & historical patterns.

Live forecast

ANC

→

CTS

Anchorage · Sapporo · 6h 25m

30.6

Turb Score

6h 25m

Duration

2,610 nm

Distance

37,000 ft

Cruise Alt.

Light

Typical

⚠️ Light turbulence today

Get exact timing, altitude & best seat — free

Download free on the App Store ★★★★★ 4.8 · 20K+ reviews Get it on Google Play ★★★★★ 4.8 · 20K+ reviews

★★★★★ 4.8 · 20,000+ reviews · iOS & Android

Scan to get the full forecast ★★★★★ 4.8 · 20,000+ reviews · iOS & Android · Free

Typical turbulence along the route

Historical average pattern for ANC–CTS

0h1h2h3h4h5h6h6h 25m

Smooth

Light

Moderate

Heavy

About the ANC–CTS route

The Anchorage to Sapporo route spans the Pacific Ocean — one of the longest commercial flight paths in the world at 3,004 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 757 · Airbus A330 aircraft, with flights typically cruising at 37,000 feet over a distance of 3,004 miles (2,610 nautical miles).

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

Anchorage to Sapporo Flight Time

How long is the flight from ANC to CTS?

6h 25m

Flight Time

3,004 mi

Distance

37,000 ft

Cruising Altitude

Boeing 757

Aircraft

The Anchorage (ANC) to Sapporo (CTS) flight takes approximately 6h 25m, covering 3,004 miles (2,610 nautical miles) at 37,000 feet. The route is operated by United, American Airlines, Delta. Return flights (CTS to ANC) take a similar time, though westbound transatlantic and transpacific routes are typically 30–60 minutes longer due to headwinds.

Turbulence levels on ANC–CTS

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

Download on the App Store ★★★★★ 4.8 · 20K+ reviews Get it on Google Play ★★★★★ 4.8 · 20K+ reviews

Best time to fly ANC–CTS

Turbulence by month

Smooth

Light

Moderate

Rough

Best seat on ANC–CTS

Boeing 757

Front

Rows 1–13

Light

✓ Wing

Rows 14–24

Smoothest

Rear

Rows 25+

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

See all transpacific flights →

Related guides

Learn more about flight turbulence

Turbulence Tracker

Track any flight in real time

→

Best Seat Guide

Which rows feel turbulence least

→

Clear-Air Turbulence

The invisible rough air that's increasing

→

Turbulence in 2025

Is turbulence getting worse?

→

Turbulence Forecast Map

Global turbulence outlook

→

Passenger Reports

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 · April

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

Parent traveling with kids · February

Flew Anchorage–Sapporo in January, had some light turbulence in the middle portion of the flight. Brief and nothing concerning. This route is usually fine.

Business traveler · January

All ANC routes→ All CTS routes→

Frequently asked questions

Is the Anchorage to Sapporo flight turbulent?

The ANC–CTS route typically experiences light turbulence. The turbulence score for this route is 30.6/100.

When is turbulence worst on ANC to CTS?

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 ANC to CTS?

Wing seats are always the smoothest. On a Boeing 757 (the most common aircraft on this route), that's rows 14–24. Avoid the very rear of the aircraft — it amplifies turbulence motion.

How long is the flight from ANC to CTS?

The ANC to CTS flight takes approximately 6h 25m, covering 3,004 miles (2,610 nautical miles).

Which airlines fly ANC to CTS?

The main airlines operating this route are United, American Airlines, Delta, flying Boeing 757 · Airbus A330 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