Originally Posted by
hi55us
You get the F baggage allowance all the way through, even when doing a buy-up to first (not a comp upgrade). I used to do this as a non-status flyer when going PSC-SEA-BOS. Usually the FCM offer on PSC-SEA was super cheap, like $20-$30 and SEA-BOS would be expensive, like $200-$300. I would pay to upgrade on PSC-SEA and get the free checked bags, plus even sky priority perks the whole way through.
You'll get it even with a free upgrade, but only if you've been upgraded before checking in
DL always goes by the highest cabin of any flight in the direction. Even if first flight is Y, the second flight confirmed in F will result in getting the F allowance.