When is the Portland to Cairns 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 PDX to CNS route?

The PDX–CNS route is typically operated by Boeing 737 · Airbus A320. Airlines include Qantas, Jetstar, Virgin Australia.

Is turbulence on PDX to CNS dangerous?

No — turbulence on the PDX–CNS 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 PDX to CNS flight?

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

PDX to CNS Turbulence Forecast

Q: Is the Portland to Cairns flight turbulent?

The PDX–CNS route typically experiences light-to-moderate turbulence. A very smooth flight with minimal turbulence expected.

Q: Which seat is smoothest on PDX to CNS?

Wing seats are smoothest. On a Boeing 737 · Airbus A320, that's rows 10-20. Avoid the rear of the aircraft where turbulence is felt most.

Q: How long is the flight from PDX to CNS?

The PDX to CNS flight takes approximately 13h 45m, covering 7,124 miles (6,191 nautical miles) at a cruising altitude of 35,000 feet.

Is the Portland to Cairns flight turbulent? Live forecast & historical patterns.

Live forecast

PDX

→

CNS

Portland · Cairns · 13h 45m

Turb Score

13h 45m

Duration

6,191 nm

Distance

35,000 ft

Cruise Alt.

Light-to-Moderate

Typical

⚠️ Light-to-Moderate turbulence today

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Typical turbulence along the route

Historical average pattern for PDX–CNS

0h1h2h3h4h5h6h13h 45m

Smooth

Light

Moderate

Heavy

About the PDX–CNS route

The Portland to Cairns 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 Qantas, Jetstar, Virgin Australia on Boeing 737 · Airbus A320 aircraft, with flights typically cruising at 35,000 feet over a distance of 7,124 miles (6,191 nautical miles).

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

Portland to Cairns Flight Time

How long is the flight from PDX to CNS?

13h 45m

Flight Time

7,124 mi

Distance

35,000 ft

Cruising Altitude

Boeing 737

Aircraft

The Portland (PDX) to Cairns (CNS) flight takes approximately 13h 45m, covering 7,124 miles (6,191 nautical miles) at 35,000 feet. The route is operated by Qantas, Jetstar, Virgin Australia. Return flights (CNS to PDX) take a similar time, though westbound transatlantic and transpacific routes are typically 30–60 minutes longer due to headwinds.

Turbulence levels on PDX–CNS

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 PDX–CNS

Turbulence by month

Smooth

Light

Moderate

Rough

Best seat on PDX–CNS

Boeing 737

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

PDX → SLC

Portland → Salt Lake City

Severe

PDX → LAX

Portland → Los Angeles

Light

PDX → SFO

Portland → San Francisco

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

There was some noticeable movement over the Midwest that made me grip the armrest. My seatmate (clearly a regular) didn't even look up from their book. Perspective.

First-time flyer · January

Flew Portland–Cairns in February, had some light turbulence in the middle portion of the flight. Brief and nothing concerning. This route is usually fine.

Business traveler · February

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

Frequent flyer · January

All PDX routes→ All CNS routes→

Frequently asked questions

Is the Portland to Cairns flight turbulent?

The PDX–CNS route typically experiences light-to-moderate turbulence. A very smooth flight with minimal turbulence expected. The turbulence score for this route is 3/100.

When is turbulence worst on PDX to CNS?

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 PDX to CNS?

Wing seats are always the smoothest. On a Boeing 737 (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 PDX to CNS?

The PDX to CNS flight takes approximately 13h 45m, covering 7,124 miles (6,191 nautical miles).

Which airlines fly PDX to CNS?

The main airlines operating this route are Qantas, Jetstar, Virgin Australia, flying Boeing 737 · Airbus A320 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