Originally Posted by
javabytes
You can't, EF doesn't support DL awards.
Originally Posted by
MSPeconomist
You don't. EF displays DL upgrade but not award inventory.
Other partners where award inventory is on EF might display a few DL flights that are codeshares, but this should be a subset of DL award inventory available with DL miles for DL elites. Similarly, if you see award inventory for DL partners, in principle low should be available for DL miles but YMMV.
That's what I thought. I have EF and never found a way to search for DL awards. I just call when I have a few minutes and ask them to check for any low seats on my current reward bookings. I've never had an agent begrudge the request.