Cheapest return flights from Washington to San Juan in April from 218€

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 April 2025 (see full year).

Return flights

30 Apr - 05 May United direct
01 Apr - 03 Apr United
01 Apr - 15 Apr United
26 Apr - 29 Apr Delta
01 Apr - 05 Apr Frontier Airlines
03 Apr - 09 Apr Frontier Airlines
02 Apr - 09 Apr United
02 Apr - 10 Apr United
24 Apr - 08 May United
19 Apr - 03 May United
03 Apr - 10 Apr Frontier Airlines
03 Apr - 06 Apr Frontier Airlines
30 Apr - 14 May United
05 Apr - 09 Apr United
30 Apr - 04 May Delta
29 Apr - 13 May United
30 Apr - 04 May United direct
18 Apr - 02 May United
17 Apr - 01 May United direct

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

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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