When is the Seattle to Nassau 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 SEA to NAS route?

The SEA–NAS route is typically operated by Boeing 737 · Airbus A319. Airlines include American, Delta, JetBlue, Bahamasair.

Is turbulence on SEA to NAS dangerous?

No — turbulence on the SEA–NAS 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 SEA to NAS flight?

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

SEA to NAS Turbulence Forecast

Q: Is the Seattle to Nassau flight turbulent?

The SEA–NAS route typically experiences light turbulence. A very smooth flight with minimal turbulence expected.

Q: Which seat is smoothest on SEA to NAS?

Wing seats are smoothest. On a Boeing 737 · Airbus A319, that's rows 10-20. Avoid the rear of the aircraft where turbulence is felt most.

Q: How long is the flight from SEA to NAS?

The SEA to NAS flight takes approximately 5h 35m, covering 2,884 miles (2,506 nautical miles) at a cruising altitude of 35,000 feet.

Is the Seattle to Nassau flight turbulent? Live forecast & historical patterns.

Live forecast

SEA

→

NAS

Seattle · Nassau · 5h 35m

Turb Score

5h 35m

Duration

2,506 nm

Distance

35,000 ft

Cruise Alt.

Light

Typical

⚠️ Light turbulence today

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Typical turbulence along the route

Historical average pattern for SEA–NAS

0h1h2h3h4h5h6h5h 35m

Smooth

Light

Moderate

Heavy

About the SEA–NAS route

The Seattle to Nassau route is one of the most popular leisure routes in North America, covering 2,884 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 American, Delta, JetBlue, Bahamasair on Boeing 737 · Airbus A319 aircraft, with flights typically cruising at 35,000 feet over a distance of 2,884 miles (2,506 nautical miles).

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

Seattle to Nassau Flight Time

How long is the flight from SEA to NAS?

5h 35m

Flight Time

2,884 mi

Distance

35,000 ft

Cruising Altitude

Boeing 737

Aircraft

The Seattle (SEA) to Nassau (NAS) flight takes approximately 5h 35m, covering 2,884 miles (2,506 nautical miles) at 35,000 feet. The route is operated by American, Delta, JetBlue, Bahamasair. Actual flight time may vary by 10–20 minutes depending on wind conditions and routing.

Turbulence levels on SEA–NAS

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 SEA–NAS

Turbulence by month

Smooth

Light

Moderate

Rough

Best seat on SEA–NAS

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

See all caribbean 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

→

When Does Turbulence Happen?

Phases of flight explained

→

Turbulence Forecast Map

Global turbulence outlook

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Passenger Reports

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

Parent traveling with kids · January

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 · December

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

Regular traveler · January

All SEA routes→ All NAS routes→

Frequently asked questions

Is the Seattle to Nassau flight turbulent?

The SEA–NAS route typically experiences light turbulence. A very smooth flight with minimal turbulence expected. The turbulence score for this route is 2/100.

When is turbulence worst on SEA to NAS?

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 SEA to NAS?

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 SEA to NAS?

The SEA to NAS flight takes approximately 5h 35m, covering 2,884 miles (2,506 nautical miles).

Which airlines fly SEA to NAS?

The main airlines operating this route are American, Delta, JetBlue, Bahamasair, flying Boeing 737 · Airbus A319 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