Cheapest return flights from Houston to Castries in March from 657€

AirHint found the following cheapest return flights from Houston (IAH) to Castries (SLU) in March 2026 (see full year).

Return flights

31 Mar - 07 Apr Frontier Airlines

Also check the deals for one-way flights from Houston to Castries in March.

Powered by

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

Book a cheap hotel in Castries

Cheap car rent in Castries

Feel free to contact us with any feedback or request another flight research.