Cheapest return flights from Washington to San Juan in October from 117€

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

Return flights

26 Oct - 30 Oct United direct
26 Oct - 06 Nov United direct
23 Oct - 30 Oct Frontier Airlines direct
23 Oct - 06 Nov Frontier Airlines direct
20 Oct - 24 Oct United direct
24 Oct - 30 Oct Frontier Airlines
26 Oct - 28 Oct United direct
26 Oct - 31 Oct United direct
27 Oct - 03 Nov United
09 Oct - 12 Oct Frontier Airlines direct
23 Oct - 02 Nov Frontier Airlines direct
30 Oct - 02 Nov Frontier Airlines direct
23 Oct - 27 Oct Frontier Airlines
02 Oct - 09 Oct United
16 Oct - 01 Nov Frontier Airlines
29 Oct - 02 Nov United direct
30 Oct - 03 Nov Frontier Airlines
21 Oct - 25 Oct Delta
28 Oct - 04 Nov United direct
21 Oct - 04 Nov United direct

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

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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