Cheapest return flights from Seattle to San Juan in March from $420

Best time to book flights for Seattle (SEA) to San Juan (SJU) flights at AirHint

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

Return flights

15 Mar - 18 Mar American Airlines
30 Mar - 06 Apr jetBlue
07 Mar - 15 Mar Alaska Airlines
24 Mar - 31 Mar jetBlue

Also check the deals for one-way flights from Seattle to San Juan in March.

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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