Cheapest return flights from Washington to San Juan in June from $175

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

AirHint found the following cheapest return flights from Washington (IAD) to San Juan (SJU) in June 2025 (see full year).

Return flights

01 Jun - 05 Jun United
24 Jun - 26 Jun Frontier Airlines direct
08 Jun - 12 Jun Frontier Airlines direct
15 Jun - 19 Jun Frontier Airlines direct
29 Jun - 03 Jul Frontier Airlines direct
24 Jun - 03 Jul Frontier Airlines direct
15 Jun - 17 Jun Frontier Airlines direct
21 Jun - 26 Jun Frontier Airlines
16 Jun - 19 Jun Frontier Airlines
15 Jun - 20 Jun Frontier Airlines
09 Jun - 12 Jun Frontier Airlines
17 Jun - 21 Jun Frontier Airlines
29 Jun - 01 Jul Frontier Airlines direct
22 Jun - 03 Jul Frontier Airlines direct
17 Jun - 02 Jul Frontier Airlines
28 Jun - 01 Jul Frontier Airlines
30 Jun - 04 Jul Frontier Airlines
30 Jun - 05 Jul Frontier Airlines
27 Jun - 04 Jul Frontier Airlines
27 Jun - 01 Jul Frontier Airlines

Also check the deals for one-way flights from Washington to San Juan in June.

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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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