DELTA

Wed, 14 Aug '24

"Keep Climbing" airline

Sun, 9 Apr '23

SkyMiles offerer

Mon, 27 Mar '23

Airline once said to be "ready when you are"

Tue, 14 Mar '23

Greek letter used for a 2021 Covid variant

Fri, 29 Jul '22

Area around the mouth

Mon, 18 Apr '22

Airline with its main hub in Atlanta

Wed, 6 Apr '22

Difference symbol, in math

Tue, 15 Jun '21

Airline whose name is a Greek letter

Tue, 19 Jan '21

Buildup at the mouth of a river