AirHint found the following cheapest return flights from Rome (ROM) to Keflavik (KEF) in March 2026 (see full year).

Return flights

03 Mar - 07 Mar	easyJet
11 Mar - 18 Mar	Vueling Airlines
11 Mar - 15 Mar	easyJet
18 Mar - 23 Mar	Vueling Airlines
16 Mar - 25 Mar	easyJet
02 Mar - 07 Mar	easyJet
03 Mar - 11 Mar	easyJet
05 Mar - 10 Mar	Wizz Air Malta
13 Mar - 18 Mar	Wizz Air Malta
02 Mar - 12 Mar	Wizz Air Malta
31 Mar - 05 Apr	ITA Airways
25 Mar - 05 Apr	easyJet

Also check the deals for one-way flights from Rome to Keflavik in March.

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 Rome to Keflavik in March from $236

Return flights