Cheapest one-way flights from Washington to San Juan in April from 83€

AirHint found the following cheapest one-way flights from Washington (IAD) to San Juan (SJU) in April 2026 (see full year).

One-Way flights

23 Apr Frontier Airlines
16 Apr Frontier Airlines
05 Apr Frontier Airlines
02 Apr Frontier Airlines
09 Apr United direct
16 Apr United direct
08 Apr United direct
02 Apr United direct
05 Apr United direct

Also check the deals for return flights from Washington to San Juan in April.

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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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