When is the Montreal to London 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 YUL to LHR route?

The YUL–LHR route is typically operated by Airbus A330 · Boeing 767. Airlines include Air Canada, British Airways.

Is turbulence on YUL to LHR dangerous?

No — turbulence on the YUL–LHR 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 YUL to LHR flight?

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

YUL to LHR Turbulence Forecast

Q: Is the Montreal to London flight turbulent?

The YUL–LHR route typically experiences light turbulence. Moderate turbulence expected — fasten seatbelt when seated.

Q: Which seat is smoothest on YUL to LHR?

Wing seats are smoothest. On a Airbus A330 · Boeing 767, that's rows 18–30. Avoid the rear of the aircraft where turbulence is felt most.

Q: How long is the flight from YUL to LHR?

The YUL to LHR flight takes approximately 6h 45m, covering 3,357 miles (2,918 nautical miles) at a cruising altitude of 36,000 feet.

Is the Montreal to London flight turbulent? Live forecast & historical patterns.

Live forecast

YUL

→

LHR

Montreal · London · 6h 45m

Turb Score

6h 45m

Duration

2,918 nm

Distance

36,000 ft

Cruise Alt.

Light

Typical

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Typical turbulence along the route

Historical average pattern for YUL–LHR

0h1h2h3h4h5h6h6h 45m

Smooth

Light

Moderate

Heavy

About the YUL–LHR route

The Montreal to London route crosses the North Atlantic, where the jet stream is the primary source of turbulence. Flying at 36,000 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 Air Canada, British Airways on Airbus A330 · Boeing 767 aircraft, with flights typically cruising at 36,000 feet over a distance of 3,357 miles (2,918 nautical miles).

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

Montreal to London Flight Time

How long is the flight from YUL to LHR?

6h 45m

Flight Time

3,357 mi

Distance

36,000 ft

Cruising Altitude

Airbus A330

Aircraft

The Montreal (YUL) to London (LHR) flight takes approximately 6h 45m, covering 3,357 miles (2,918 nautical miles) at 36,000 feet. The route is operated by Air Canada, British Airways. Return flights (LHR to YUL) take a similar time, though westbound transatlantic and transpacific routes are typically 30–60 minutes longer due to headwinds.

Turbulence levels on YUL–LHR

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 YUL–LHR

Turbulence by month

Smooth

Light

Moderate

Rough

Best seat on YUL–LHR

Airbus A330

Front

Rows 1–17

Light

✓ Wing

Rows 18–30

Smoothest

Rear

Rows 31+

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

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Turbulence Tracker

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Best Seat Guide

Which rows feel turbulence least

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Clear-Air Turbulence

The invisible rough air that's increasing

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Turbulence in 2025

Is turbulence getting worse?

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Is Turbulence Dangerous?

What the safety data shows

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Passenger Reports

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

Parent traveling with kids · June

The 6h 45m flight had some light shaking around the halfway point. Nothing spilled, nobody panicked. Just normal flying.

Leisure traveler · May

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

First-time flyer · April

All YUL routes→ All LHR routes→

Frequently asked questions

Is the Montreal to London flight turbulent?

The YUL–LHR route typically experiences light turbulence. Moderate turbulence expected — fasten seatbelt when seated. The turbulence score for this route is 56/100.

When is turbulence worst on YUL to LHR?

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 YUL to LHR?

Wing seats are always the smoothest. On a Airbus A330 (the most common aircraft on this route), that's rows 18–30. Avoid the very rear of the aircraft — it amplifies turbulence motion.

How long is the flight from YUL to LHR?

The YUL to LHR flight takes approximately 6h 45m, covering 3,357 miles (2,918 nautical miles).

Which airlines fly YUL to LHR?

The main airlines operating this route are Air Canada, British Airways, flying Airbus A330 · Boeing 767 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