Cheapest return flights from Phoenix to St. Thomas in December from $628

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

Return flights

08 Dec - 15 Dec United

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

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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