You travel S3 on company equip, in the same bucket as DL mainline. DOH determines seniority. On delta we are below delta but above all other delta connection. On the Jumpseat, we own it on company equip and are above all other connection carriers on mainline. If you want to buy tickets you can do fly confirmed For less- 25% discount from posted fair. Eligible for upgrade and sky miles. You can do confirmed for even less at a 30% discount but no upgrade or miles.