AirHint found the following cheapest return flights from Fort Lauderdale (FLL) to Keflavik (KEF) in July 2025 (see full year).

Return flights

18 Jul - 25 Jul	Spirit Airlines
05 Jul - 10 Jul	Spirit Airlines
30 Jul - 10 Aug	jetBlue
13 Jul - 16 Jul	Spirit Airlines
28 Jul - 10 Aug	jetBlue
17 Jul - 31 Jul	jetBlue
15 Jul - 22 Jul	Delta
04 Jul - 12 Jul	Delta

Also check the deals for one-way flights from Fort Lauderdale to Keflavik in July.

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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Cheapest return flights from Fort Lauderdale to Keflavik in July from $498

Return flights