Cheapest one-way flights from Keflavik to Singapore in June from $496

AirHint found the following cheapest one-way flights from Keflavik (KEF) to Singapore (SIN) in June 2025 (see full year).

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.