The flight distance from George Bush Intcntl/Houston Airport (IAH) in Houston, United States to George F. L. Charles Airport (SLU) in Castries, Saint Lucia is 3,939 kilometers (2,448 miles / 2,127 nautical miles). The estimated flight time for this route is approximately 6h, flying east southeast at a heading of 109°.

This is a medium-haul route that may be operated by either narrow-body or wide-body aircraft depending on demand. Passengers can expect a meal service on most carriers.

This is an international route connecting United States with Saint Lucia. Travelers should check visa requirements, customs regulations, and any travel advisories before booking.

Time zone information: When it's 11:18 in Houston, it's 13:18 in Castries.

The return flight from Castries (SLU) to Houston (IAH) follows a heading of 303° (west northwest). Actual flight times may vary depending on wind conditions, air traffic, and the specific aircraft used.

For more information about these airports, visit the George Bush Intcntl/Houston Airport (IAH) and George F. L. Charles Airport (SLU) detail pages, or use our flight duration calculator to compare other routes.