Cheapest one-way flights from Washington to San Juan in July from 104€

Best time to book flights for Washington (IAD) to San Juan (SJU) flights at AirHint

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

One-Way flights

01 Jul Frontier Airlines direct
06 Jul Frontier Airlines direct
08 Jul Frontier Airlines direct
10 Jul Frontier Airlines direct
03 Jul Frontier Airlines direct
07 Jul Frontier Airlines
09 Jul Frontier Airlines
02 Jul Frontier Airlines
20 Jul United direct
13 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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