AirHint found the following cheapest return flights from Washington (IAD) to St. Thomas (STT) in January 2026 (see full year).

Return flights

25 Jan - 28 Jan	United	direct
26 Jan - 30 Jan	United
08 Jan - 12 Jan	Delta
23 Jan - 27 Jan	Delta
23 Jan - 28 Jan	Delta
29 Jan - 05 Feb	United	direct
30 Jan - 05 Feb	United	direct
19 Jan - 23 Jan	United	direct
23 Jan - 28 Jan	United	direct
30 Jan - 06 Feb	United
14 Jan - 21 Jan	Delta
08 Jan - 12 Jan	United	direct
17 Jan - 24 Jan	Southern Airways Express

Also check the deals for one-way flights from Washington to St. Thomas in January.

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 Washington to St. Thomas in January from $190

Return flights