Cheapest return flights from Chicago to Keflavik in March from 434€

Best time to book flights for Chicago (ORD) to Keflavik (KEF) flights at AirHint

AirHint found the following cheapest return flights from Chicago (ORD) to Keflavik (KEF) in March 2025 (see full year).

Return flights

25 Mar - 01 Apr Spirit Airlines
31 Mar - 07 Apr Spirit Airlines
29 Mar - 04 Apr jetBlue
26 Mar - 01 Apr Spirit Airlines
27 Mar - 01 Apr Spirit Airlines
17 Mar - 25 Mar jetBlue
18 Mar - 26 Mar Spirit Airlines
12 Mar - 18 Mar TAP
16 Mar - 20 Mar Spirit Airlines
27 Mar - 30 Mar Spirit Airlines
15 Mar - 18 Mar Frontier Airlines
13 Mar - 20 Mar Lufthansa
12 Mar - 16 Mar Turkish Airlines
14 Mar - 20 Mar Virgin Atlantic
16 Mar - 22 Mar Spirit Airlines
31 Mar - 07 Apr Icelandair direct
25 Mar - 01 Apr Icelandair direct

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

Skyscanner

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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