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

Return flights

28 Jul - 12 Aug	jetBlue
30 Jul - 02 Aug	jetBlue
24 Jul - 29 Jul	American Airlines
25 Jul - 29 Jul	American Airlines
26 Jul - 29 Jul	American Airlines
25 Jul - 30 Jul	American Airlines
31 Jul - 14 Aug	United
27 Jul - 29 Jul	American Airlines
18 Jul - 22 Jul	American Airlines
14 Jul - 21 Jul	jetBlue
30 Jul - 13 Aug	United
29 Jul - 06 Aug	jetBlue
21 Jul - 04 Aug	United
10 Jul - 13 Jul	jetBlue
28 Jul - 11 Aug	United
31 Jul - 10 Aug	jetBlue
20 Jul - 03 Aug	United
22 Jul - 05 Aug	United
09 Jul - 23 Jul	United
07 Jul - 21 Jul	United

Also check the deals for one-way flights from Washington 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.

Book a cheap hotel in St. Thomas

Cheap car rent in St. Thomas

Cheapest return flights from Washington to St. Thomas in July from $401

Return flights