Cheapest one-way flights from Washington to San Juan in July from 84€

AirHint found the following cheapest one-way flights from Washington (IAD) to San Juan (SJU) in July 2025 (see full year).

One-Way flights

13 Jul United
20 Jul Frontier Airlines direct
09 Jul United
13 Jul Frontier Airlines direct
27 Jul Frontier Airlines direct
21 Jul Delta
11 Jul Frontier Airlines
31 Jul Frontier Airlines
09 Jul United direct
21 Jul United direct

Also check the deals for return flights from Washington to San Juan 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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