When is the New York to San Juan 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.

JFK to SJU Turbulence Forecast

Q: Is the New York to San Juan flight turbulent?

The JFK–SJU route typically experiences light turbulence. Light turbulence may occur — mostly smooth with occasional bumps.

Q: Which seat is smoothest on JFK to SJU?

Wing seats are smoothest. On a Boeing 737 · Airbus A321, that's rows 10–18. Avoid the rear of the aircraft.

Q: How long is the flight from JFK to SJU?

The JFK to SJU flight takes approximately 3h 30m, covering 1,602 miles at 34,000 feet.

Is the New York to San Juan flight turbulent? Live forecast & historical patterns.

Live forecast

JFK

→

SJU

New York · San Juan · 3h 30m

Turb Score

3h 30m

Duration

1,392 nm

Distance

34,000 ft

Cruise Alt.

Light

Typical

⚠️ Light turbulence today

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Typical turbulence along the route

Historical average pattern for JFK–SJU

0h1h2h3h4h5h6h3h 30m

Smooth

Light

Moderate

Heavy

About the JFK–SJU route

The New York to San Juan route is one of the most popular leisure routes in North America, covering 1,602 miles over warm Caribbean waters. Turbulence is generally light — the main exception is tropical convective activity (thunderstorm-related turbulence) during hurricane season (June–November). Pilots typically route around storm cells when possible.

The route is served by JetBlue, American Airlines, Spirit Airlines on Boeing 737 · Airbus A321 aircraft, with flights typically cruising at 34,000 feet over a distance of 1,602 miles (1,392 nautical miles).

💡 Tip: Mostly smooth. Hurricane season (Jun–Nov) can bring convective turbulence.

New York to San Juan Flight Time

How long is the flight from JFK to SJU?

3h 30m

Flight Time

1,602 mi

Distance

34,000 ft

Cruising Altitude

Boeing 737

Aircraft

The New York (JFK) to San Juan (SJU) flight takes approximately 3h 30m, covering 1,602 miles (1,392 nautical miles) at 34,000 feet. The route is operated by JetBlue, American Airlines, Spirit Airlines. Actual flight time may vary by 10–20 minutes depending on wind conditions and routing.

Turbulence levels on JFK–SJU

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 JFK–SJU

Turbulence by month

Smooth

Light

Moderate

Rough

Best seat on JFK–SJU

Boeing 737

Front

Rows 1–9

Light

✓ Wing

Rows 10–18

Smoothest

Rear

Rows 19+

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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Best Seat Guide

Which rows feel turbulence least

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When Does Turbulence Happen?

Phases of flight explained

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Turbulence Forecast Map

Global turbulence outlook

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Passenger Reports

There was some noticeable movement crossing the warm front 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 over the islands, lasted maybe half an hour total. Drink service was paused briefly. Not unusual for this time of year.

Frequent flyer · February

Some light chop over the islands — seatbelt sign came on for maybe 20 minutes but nothing to worry about. Typical for this route in May.

Regular traveler · May

All JFK routes→ All SJU routes→

Frequently asked questions

Is the New York to San Juan flight turbulent?

The JFK–SJU route typically experiences light turbulence. Light turbulence may occur — mostly smooth with occasional bumps. The turbulence score for this route is 38/100.

When is turbulence worst on JFK to SJU?

Mostly smooth. Hurricane season (Jun–Nov) can bring convective turbulence. Check the turbulence chart above for the typical pattern along this specific route.

Which seat is smoothest on JFK to SJU?

Wing seats are always the smoothest. On a Boeing 737 (the most common aircraft on this route), that's rows 10–18. Avoid the very rear of the aircraft — it amplifies turbulence motion.

How long is the flight from JFK to SJU?

The JFK to SJU flight takes approximately 3h 30m, covering 1,602 miles (1,392 nautical miles).

Which airlines fly JFK to SJU?

The main airlines operating this route are JetBlue, American Airlines, Spirit Airlines, flying Boeing 737 · Airbus A321 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