Ready to fly IAH to SLU?
Compare flight prices across hundreds of airlines and booking sites.
Find flights from IAH to SLUSome links on this page are affiliate links. We may earn a commission at no extra cost to you.
Airport Comparison
Houston (IAH) to Castries (SLU) Flight Distance
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 15:56 in Houston, it's 16:56 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.
Cheapest months to fly IAH → SLU
Live ticket prices for the next 12 months. Click any month to see deals.
Flight schedule IAH → SLU
Upcoming departures, airlines, and flight numbers for this route.
Flight IAH → SLU delayed or cancelled?
You may be entitled to up to €600 compensation under EU 261 / UK 261. Check eligibility in 2 minutes.