Cheapest return flights from Chicago to Keflavik in July from $498

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 July 2025 (see full year).

Return flights

08 Jul - 15 Jul Spirit Airlines
17 Jul - 23 Jul Spirit Airlines
06 Jul - 12 Jul Spirit Airlines
08 Jul - 13 Jul Spirit Airlines
03 Jul - 09 Jul Spirit Airlines
29 Jul - 05 Aug jetBlue
09 Jul - 16 Jul Spirit Airlines
04 Jul - 16 Jul Air France
12 Jul - 19 Jul Air Canada
05 Jul - 14 Jul Air Canada
05 Jul - 13 Jul United
29 Jul - 05 Aug Icelandair direct

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

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.

Book a cheap hotel in Keflavik

Cheap car rent in Keflavik