Longwave and shortwave cloud radiative forcing derived from broadband irradiance observations during the AFLUX (Airborne measurements of radiative and turbulent FLUXes of energy and momentum in the Arctic boundary layer, March / April 2019) and the ACLOUD (Arctic CLoud Observations Using airborne measurements during polar Day, May / June 2017) campaign. This dataset contains only low-level flight sections. In addition, a cloud liquid water path equivalent derived from the shortwave transmissivity is given and a cloud-free albedo estimate during cloudy observations. The cloud radiative forcing over sea ice during ACLOUD (https://doi.pangaea.de/10.1594/PANGAEA.909289) is extented to the entire marginal sea ice zone in this dataset.