When is the Miami to London 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.

MIA to LHR Turbulence Forecast

Q: Is the Miami to London flight turbulent?

The MIA–LHR route typically experiences moderate turbulence. Moderate turbulence expected — fasten seatbelt when seated.

Q: Which seat is smoothest on MIA to LHR?

Wing seats are smoothest. On a Boeing 767 · Boeing 777, that's rows 18–30. Avoid the rear of the aircraft.

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

The MIA to LHR flight takes approximately 9h 30m, covering 4,516 miles at 37,000 feet.

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

Live forecast

MIA

→

LHR

Miami · London · 9h 30m

Turb Score

9h 30m

Duration

3,924 nm

Distance

37,000 ft

Cruise Alt.

Moderate

Typical

⚠️ Moderate turbulence today

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Typical turbulence along the route

Historical average pattern for MIA–LHR

0h1h2h3h4h5h6h9h 30m

Smooth

Light

Moderate

Heavy

About the MIA–LHR route

The Miami to London route crosses the North Atlantic, where the jet stream is the primary source of turbulence. Flying at 37,000 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 British Airways, American Airlines on Boeing 767 · Boeing 777 aircraft, with flights typically cruising at 37,000 feet over a distance of 4,516 miles (3,924 nautical miles).

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

Miami to London Flight Time

How long is the flight from MIA to LHR?

9h 30m

Flight Time

4,516 mi

Distance

37,000 ft

Cruising Altitude

Boeing 767

Aircraft

The Miami (MIA) to London (LHR) flight takes approximately 9h 30m, covering 4,516 miles (3,924 nautical miles) at 37,000 feet. The route is operated by British Airways, American Airlines. Return flights (LHR to MIA) take a similar time, though westbound transatlantic and transpacific routes are typically 30–60 minutes longer due to headwinds.

Turbulence levels on MIA–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 MIA–LHR

Turbulence by month

Smooth

Light

Moderate

Rough

Best seat on MIA–LHR

Boeing 767

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

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Clear-Air Turbulence

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Turbulence in 2025

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Is Turbulence Dangerous?

What the safety data shows

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Passenger Reports

The over the North Atlantic section was legitimately rough. I was holding on to the armrests. Lasted maybe 40 minutes. One of the flight attendants had to sit down. Not a fun 9h 30m flight but we landed fine.

Solo traveler · June

Moderate turbulence somewhere over Greenland — the kind where you're glad you kept your seatbelt on. Lasted about 30-40 minutes, then smoothed out. I've had worse on transatlantic routes.

Frequent flyer · July

Rough patch somewhere over Greenland in April — drinks went everywhere on the row behind me. Probably 45 minutes of actual turbulence. Nothing dangerous but definitely uncomfortable.

Business traveler · April

All MIA routes→ All LHR routes→

Frequently asked questions

Is the Miami to London flight turbulent?

The MIA–LHR route typically experiences moderate turbulence. Moderate turbulence expected — fasten seatbelt when seated. The turbulence score for this route is 63/100.

When is turbulence worst on MIA 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 MIA to LHR?

Wing seats are always the smoothest. On a Boeing 767 (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 MIA to LHR?

The MIA to LHR flight takes approximately 9h 30m, covering 4,516 miles (3,924 nautical miles).

Which airlines fly MIA to LHR?

The main airlines operating this route are British Airways, American Airlines, flying Boeing 767 · 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