Is this in one ticket? I doubt as this is not really an alliance and DL
would rather use UX
for their onward travel, when it#s in one ticket. If it's in one ticket, then there is a interline agreement, and you will be fine.
So I am almost tempted to say, NO, it will not work. That said, since you have a status with DL
, possibly you get a nice agent which will check the bags through when you show your second itinerary.
Also be aware that transferring from DL
is quite a hell. You will arrive at T1/2/3 and then pass immigration. You then pass the baggage claim area. If your bags are NOT checked through, you can catch them there (so it doesn't really make that a big difference if you check them through or not). Then you wait curbside for a free shuttle bus bringing you to T4
, count approx 10-15 minutes ride for that, as both terminals are way apart. Then you go to the IB
check in counters to get your boarding pass (do not even count on DL
issuing you a onward boarding pass on IB
even if you travel on one ticket). If you have bags, you can check them there again (if they're checked through make sure to show them your bag receipt so that they take care of transferring the bags). Then you proceed through security and board your next flight.
If bags are checked through, you will pass customs for your bags in PMI
In any case, considering you need to go completely landside, it doesn't really make a difference if they check your bags through or not to be honest...
As for Air Nostrum, as far as I know your bag is free.
[Edited 2013-05-03 13:44:24]