AirHint found the following cheapest return flights from Boston (BOS) to San Juan (SJU) in November 2025 (see full year).

Return flights

05 Nov - 08 Nov	Spirit Airlines
04 Nov - 08 Nov	Spirit Airlines
04 Nov - 11 Nov	Southwest Airlines
04 Nov - 08 Nov	Delta	direct
05 Nov - 08 Nov	Delta	direct
09 Nov - 16 Nov	Frontier Airlines
07 Nov - 12 Nov	Delta	direct
25 Nov - 02 Dec	jetBlue
23 Nov - 01 Dec	jetBlue
25 Nov - 02 Dec	Delta	direct
09 Nov - 16 Nov	Delta	direct
06 Nov - 09 Nov	Southwest Airlines
28 Nov - 01 Dec	Southwest Airlines
26 Nov - 30 Nov	jetBlue
24 Nov - 01 Dec	United
28 Nov - 01 Dec	Delta	direct
23 Nov - 01 Dec	Delta	direct
25 Nov - 01 Dec	United

Also check the deals for one-way flights from Boston 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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Cheapest return flights from Boston to San Juan in November from 167€

Return flights