AirHint found the following cheapest one-way flights from Keflavik (KEF) to San Jose (SJO) in April 2026 (see full year).
One-Way flights
| 13 Apr | Icelandair | ||
| 10 Apr | Icelandair | ||
| 11 Apr | Icelandair | ||
| 12 Apr | Transavia France | ||
| 09 Apr | Icelandair | ||
| 14 Apr | Icelandair | ||
| 15 Apr | Icelandair |
Also check the deals for return flights from Keflavik to San Jose in April.
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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