Cheapest return flights from Washington to San Juan in May from 157€

Best time to book flights for Washington (IAD) to San Juan (SJU) flights at AirHint

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

Return flights

10 May - 15 May United
17 May - 31 May United
14 May - 20 May United
11 May - 15 May United
03 May - 07 May United
20 May - 23 May United
03 May - 10 May United
02 May - 07 May United direct
02 May - 08 May United
06 May - 20 May United
21 May - 04 Jun United
20 May - 03 Jun United
18 May - 03 Jun United
31 May - 14 Jun United
30 May - 04 Jun United
30 May - 03 Jun United
25 May - 08 Jun United
28 May - 11 Jun United
29 May - 12 Jun United
30 May - 05 Jun United

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

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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