How do airlines decide which seats to release to partners?

[Eru Ilúvatar]

How do airlines decide which seats can be booked with partners miles? For example Delta doesn't release any space on its jfk to tlv flight to air france, but it does for jfk to lhr?

[GAM Z.]

How do airlines decide which seats can be booked with partners miles? For example Delta doesn't release any space on its jfk to tlv flight to air france, but it does for jfk to lhr?

Im not sure if this is what your looking for, but generally partner airlines can only book saver awards.

[shauly]

There's a lot more that goes into it, but first off, they don't even normally have saver level space on the TLV flight for their own members either, whereas they do on the LHR flights so that's why you'll see them on AF.

Regarding why they don't release saver, one reason is probably that they have 1 frequency to TLV, while to LHR there are so many flights from NYC every day across several airlines. More capacity means more seats for sale which means more potential for saver space to fill them up. Again this is obviously a huge oversimplification as there are many factors that go into saver space and it seems to vary for every airline, but that's the basic picture.

[a good yeshiva bachur]

booking DL468 and DL467 through AF, those days are long gone