AirHint found the following cheapest one-way flights from Seattle (SEA) to San Juan (SJU) in November 2025 (see full year).
One-Way flights
| 15 Nov | Alaska Airlines | ||
| 18 Nov | American Airlines | ||
| 19 Nov | Alaska Airlines | ||
| 07 Nov | Sun Country Airlines | ||
| 24 Nov | American Airlines |
Also check the deals for return flights from Seattle to San Juan in November.
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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