Cheapest return flights from Phoenix to St. Thomas in December from 441€

AirHint found the following cheapest return flights from Phoenix (PHX) to St. Thomas (STT) in December 2025 (see full year).

Return flights

23 Dec - 09 Jan Frontier Airlines
14 Dec - 18 Dec Frontier Airlines

Also check the deals for one-way flights from Phoenix to St. Thomas in December.

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 St. Thomas

Cheap car rent in St. Thomas

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