Iceland Express was a low-fare airline headquartered in Reykjavík, Iceland that was acquired by WOW air. It operated services to several destinations in Europe using wet-leased aircraft. Its main base was Keflavík International Airport.

Wow Air, stylized as WOW air, was an Icelandic ultra low-cost carrier operating between 2012 and 2019. The airline was headquartered in Reykjavík and based at Keflavík International Airport. It flew between Iceland and the rest of Europe and North America, and also flew to India as part of a wider plan to expand in Asia. The airline abruptly ceased operations on 28 March 2019, when its operating company WOW air hf. went out of business.