Cheapest return flights from Chicago to Keflavik in March from $487

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 2026 (see full year).

Return flights

30 Mar - 07 Apr Finnair
29 Mar - 06 Apr Finnair
02 Mar - 10 Mar British Airways
09 Mar - 17 Mar British Airways
03 Mar - 11 Mar British Airways
03 Mar - 12 Mar British Airways
22 Mar - 30 Mar British Airways
03 Mar - 08 Mar British Airways
10 Mar - 15 Mar British Airways
19 Mar - 24 Mar British Airways
12 Mar - 17 Mar British Airways
05 Mar - 10 Mar British Airways
27 Mar - 03 Apr Icelandair direct
25 Mar - 02 Apr Icelandair direct
30 Mar - 07 Apr Icelandair direct
30 Mar - 04 Apr Icelandair direct
29 Mar - 06 Apr Icelandair direct
28 Mar - 05 Apr Finnair
29 Mar - 03 Apr Icelandair direct
28 Mar - 02 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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