Cheapest one-way flights from Washington to San Juan in August from $168
AirHint found the following cheapest one-way flights from Washington (IAD) to San Juan (SJU) in August 2025 (see full year).
One-Way flights
| 26 Aug | United | direct | |
| 19 Aug | American Airlines | ||
| 22 Aug | Avelo Airlines | ||
| 02 Aug | Allegiant Air | ||
| 08 Aug | Avelo Airlines | ||
| 19 Aug | United | direct | |
| 22 Aug | United | direct | |
| 02 Aug | United | direct | |
| 08 Aug | United | direct |
Also check the deals for return flights from Washington to San Juan in August.
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.
