Cheap flights to Costa Rica from Ontario

Round trips from Ontario from $559. Cheapest dates, deal ratings and where to book.

• San José (Alajuela): $559, 2026-11-12 to 2026-11-16
• Liberia: $713, 2026-10-18 to 2026-10-24

Nearby

• Nicaragua
• Panama
• El Salvador
• Honduras
• Guatemala
• Belize
• Colombia
• Jamaica