AirHint found the following cheapest return flights from Houston (IAH) to St. Thomas (STT) in July 2025 (see full year).

Return flights

09 Jul - 11 Jul	Spirit Airlines
09 Jul - 28 Jul	Spirit Airlines
16 Jul - 28 Jul	Spirit Airlines
09 Jul - 10 Jul	Spirit Airlines
22 Jul - 28 Jul	Spirit Airlines
24 Jul - 28 Jul	Spirit Airlines
11 Jul - 28 Jul	Spirit Airlines
01 Jul - 11 Jul	Spirit Airlines
03 Jul - 11 Jul	Spirit Airlines
01 Jul - 10 Jul	Spirit Airlines
22 Jul - 10 Aug	Spirit Airlines
24 Jul - 10 Aug	Spirit Airlines

Also check the deals for one-way flights from Houston to St. Thomas in July.

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.

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Cheapest return flights from Houston to St. Thomas in July from $247

Return flights