Airline Stock Roundup: ALK’s Delta Variant-Led Warning, GOL, AZUL in Focus Posted byMaharathi Basu September 9, 2021 Leave a comment on Airline Stock Roundup: ALK’s Delta Variant-Led Warning, GOL, AZUL in Focus Alaska Air (ALK) tapers Q3 view on Delta variant-triggered woes. Gol Linhas’ (GOL) traffic surges 84.7% year over year in August.