Cheapest one-way flights from Washington to San Juan in June from 123€

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 June 2025 (see full year).

One-Way flights

26 Jun Frontier Airlines direct
29 Jun Frontier Airlines direct
25 Jun Frontier Airlines
03 Jun Delta
13 Jun Avelo Airlines
28 Jun Frontier Airlines
27 Jun Frontier Airlines
30 Jun Frontier Airlines
04 Jun United
04 Jun United direct

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

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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