When is the Boston to Lisbon 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.

BOS to LIS Turbulence Forecast

Q: Is the Boston to Lisbon flight turbulent?

The BOS–LIS route typically experiences light turbulence.

Q: Which seat is smoothest on BOS to LIS?

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

Q: How long is the flight from BOS to LIS?

The BOS to LIS flight takes approximately 6h 30m, covering 3,185 miles at 37,000 feet.

Is the Boston to Lisbon flight turbulent? Live forecast & historical patterns.

Live forecast

BOS

→

LIS

Boston · Lisbon · 6h 30m

35.8

Turb Score

6h 30m

Duration

2,767 nm

Distance

37,000 ft

Cruise Alt.

Light

Typical

⚠️ Light turbulence today

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Typical turbulence along the route

Historical average pattern for BOS–LIS

0h1h2h3h4h5h6h6h 30m

Smooth

Light

Moderate

Heavy

About the BOS–LIS route

The Boston to Lisbon 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 American Airlines, United, Delta on Boeing 757 · Airbus A330 aircraft, with flights typically cruising at 37,000 feet over a distance of 3,185 miles (2,767 nautical miles).

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

Boston to Lisbon Flight Time

How long is the flight from BOS to LIS?

6h 30m

Flight Time

3,185 mi

Distance

37,000 ft

Cruising Altitude

Boeing 757

Aircraft

The Boston (BOS) to Lisbon (LIS) flight takes approximately 6h 30m, covering 3,185 miles (2,767 nautical miles) at 37,000 feet. The route is operated by American Airlines, United, Delta. Return flights (LIS to BOS) take a similar time, though westbound transatlantic and transpacific routes are typically 30–60 minutes longer due to headwinds.

Turbulence levels on BOS–LIS

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 BOS–LIS

Turbulence by month

Smooth

Light

Moderate

Rough

Best seat on BOS–LIS

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

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Passenger Reports

Flew Boston–Lisbon in May, had some light turbulence in the middle portion of the flight. Brief and nothing concerning. This route is usually fine.

Business traveler · May

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

First-time flyer · January

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

Frequent flyer · March

All BOS routes→ All LIS routes→

Frequently asked questions

Is the Boston to Lisbon flight turbulent?

The BOS–LIS route typically experiences light turbulence. The turbulence score for this route is 35.8/100.

When is turbulence worst on BOS to LIS?

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 BOS to LIS?

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 BOS to LIS?

The BOS to LIS flight takes approximately 6h 30m, covering 3,185 miles (2,767 nautical miles).

Which airlines fly BOS to LIS?

The main airlines operating this route are American Airlines, United, 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