New Orleans to Galveston Sea Distance Calculator

Calculate the exact nautical distance from New Orleans, United States to Galveston, United States. Plan your maritime journey with our professional route calculator.

Distance
411.6 nm
nautical miles
Under Sail
3.4 days
at 5 knots
Under Power
41 hours
at 10 knots
Best Time
Varies by area
Typical Sailing Season

Distance follows a sea-lane route. Sailing times are estimates at fixed cruising speeds and vary with vessel, weather, and currents.

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Distance: 411.6 nautical miles
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This map shows the direct sea route from New Orleans to Galveston. The actual sailing path may vary based on weather conditions and navigation requirements.

Passage details

This is a markedly indirect coastal passage: the navigable route runs 65% longer than the 249 nm direct line, its heading turning from east-southeast to west-southwest. It spans two maritime regions.

Sea distance
411.6 nm (762.3 km)
Direct line
248.8 nm65% longer
Great-circle bearing
262° (west)
Geographic extent
1.5° × 5.5°
Crossing
Cross-border · Cross-region
From
New Orleans (United States) 29.9511, -90.0715
To
Galveston (United States) 29.3167, -94.7833
Route basis
Sea-lane route
Passage timeEstimated passage time by cruising speed
Cruising speedDuration
5 kn3.4 days
8 kn2.1 days
10 kn41 hours
12 kn34 hours

Distance follows a sea-lane route generated from marine traffic lanes; passage times are computed at fixed cruising speeds.

Read the methodology — How we calculate sea distances

Last reviewed 2026-06-17

About New Orleans to Galveston Route

The maritime route from New Orleans to Galveston is a overnight offshore international passage connecting two major commercial ports in the North America region. Mariners on this leg typically prepare for seasonal storm systems that vary by coast — check the forecast for your route and season.

This route runs spanning two distinct maritime regions, connecting New Orleans in United States with Galveston in United States.

Navigation Tips

  • •On this overnight offshore international crossing in the North America region, prepare for seasonal storm systems that vary by coast — check the forecast for your route and season, particularly in peak season.
  • •For a overnight offshore route, plan fuel and provisioning around the North America region — calculate consumption with our tool.
  • •Verify port-entry requirements at both ends of this international route spanning two distinct maritime regions before you depart.
  • •Check safety gear suited to North America conditions before a overnight offshore passage — life rafts, EPIRB, and current charts.
  • •Carry passports, vessel documents, and crew lists matched to this international route spanning two distinct maritime regions.

Frequently Asked Questions

How far is it from New Orleans to Galveston by sea?

The sea distance from New Orleans to Galveston is approximately 411.6 nautical miles — a overnight offshore passage in North America.

How long does it take to sail from New Orleans to Galveston?

A overnight offshore spanning two distinct maritime regions crossing of 411.6 nautical miles typically takes 1.7 days – 3.4 days, depending on vessel and weather.

What's the best time to sail from New Orleans to Galveston?

Conditions on this route vary by area and season, so there is no single best time that applies along its whole length. Always check current weather forecasts and sea conditions before departure.

Plan Your Perfect Maritime Journey

Use our advanced calculator above to customize your route, add waypoints, calculate fuel costs, and share your journey plan with crew members.

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