Cheapest return flights from Boise to St. Thomas in July from $714

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

Return flights

31 Jul - 18 Aug Alaska Airlines
25 Jul - 29 Jul American Airlines

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

Skyscanner

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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