Cheapest return flights from Seattle to San Juan in July from $365

AirHint found the following cheapest return flights from Seattle (SEA) to San Juan (SJU) in July 2025 (see full year).

Return flights

14 Jul - 18 Jul Spirit Airlines
14 Jul - 22 Jul Spirit Airlines
22 Jul - 08 Aug Spirit Airlines
14 Jul - 16 Jul Spirit Airlines
14 Jul - 25 Jul Spirit Airlines
14 Jul - 30 Jul Spirit Airlines
21 Jul - 08 Aug Spirit Airlines
22 Jul - 30 Jul Spirit Airlines
14 Jul - 31 Jul Spirit Airlines
14 Jul - 03 Aug Spirit Airlines
22 Jul - 31 Jul Spirit Airlines
21 Jul - 30 Jul Spirit Airlines
22 Jul - 25 Jul Spirit Airlines
22 Jul - 03 Aug Spirit Airlines
22 Jul - 11 Aug Spirit Airlines
29 Jul - 08 Aug Spirit Airlines
21 Jul - 03 Aug Spirit Airlines
21 Jul - 11 Aug Spirit Airlines
28 Jul - 08 Aug Spirit Airlines
22 Jul - 07 Aug Spirit Airlines

Also check the deals for one-way flights from Seattle 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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