Cheapest return flights from Miami to Keflavik in May from $455

Best time to book flights for Miami (MIA) to Keflavik (KEF) flights at AirHint

AirHint found the following cheapest return flights from Miami (MIA) to Keflavik (KEF) in May 2025 (see full year).

Return flights

12 May - 20 May Frontier Airlines
22 May - 28 May Frontier Airlines
12 May - 19 May jetBlue
11 May - 19 May jetBlue
11 May - 20 May Spirit Airlines
17 May - 24 May jetBlue
21 May - 28 May Spirit Airlines
22 May - 27 May Spirit Airlines
21 May - 27 May Spirit Airlines
04 May - 11 May Spirit Airlines

Also check the deals for one-way flights from Miami to Keflavik in May.

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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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