AirHint found the following cheapest return flights from Quito (UIO) to San Juan (SJU) in May 2026 (see full year).
Return flights
| 07 May - 12 May | Avianca | ||
| 07 May - 13 May | Avianca | ||
| 22 May - 25 May | Avianca |
Also check the deals for one-way flights from Quito to San Juan in May.
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