2020 Duluth Airshow Postponed To 2021 With New Headlining Act2020 Duluth Airshow Postponed To 2021 With New Headlining Acthis year's Duluth Airshow, scheduled for July 18 and 19 has been postponed to next summer and will feature most of this year's lineup aside from the headlining act. Nick CooperNick Cooper