If light weight for airlines is important, go for something with an aluminium frame. These days that means a Pakboats 150 if you're buying new (Trak is quite heavy at 22 kg). Easy to load with the removable deck too.
+1. The new hull material is supposedly significantly more durable than on the previous models, and it's also easily repaired, which seems important for the OP.
Depending on your budget you might also consider some Oru kayaks. Their newer 'Coast' model performs well and is reportedly durable, but it's bulky and cumbersome over longer distances without a car. It doesn't seem nearly as conducive to airline travel as the Quest and is also at least a few hundred dollars more depending on the model.
As siravingmon wrote, the Trak Seeker is an excellent kayak overall, but it's heavy and also fairly bulky. The info I've gathered seems to indicate it's not very conducive to airline travel. It also costs about $3K new, $2500 for a used demo model.