Cheapest one-way flights from Washington to St. Thomas in July from $90

AirHint found the following cheapest one-way flights from Washington (IAD) to St. Thomas (STT) in July 2025 (see full year).

One-Way flights

10 Jul Frontier Airlines
13 Jul Frontier Airlines
04 Jul Frontier Airlines
31 Jul United direct
14 Jul United direct
13 Jul United direct
10 Jul United direct
08 Jul United direct
04 Jul United direct

Also check the deals for return flights from Washington 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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