Your invitation to interview from United, Delta and JetBlue will come in the form of an email invite. Don’t let this email go to your junk/spam folder. You could unwittingly miss your opportunity and that would be a shame. Add united@AirlineApps.com, Delta@AirlineApps.com and firstname.lastname@example.org to your contacts list. Doing this prevents the email from going into your junk file.