We would rule out the Kia Sonet as it is a compact SUV and much smaller than the Honda Elevate and Kia Seltos, and hence, both comfort and luggage space won’t be anywhere near as good.
Between the Seltos and the Elevate, we suggest you opt for the new Seltos, which is better than the Elevate in many ways. Firstly, the Kia Seltos’s 1.5 engine is smoother, and the iVT transmission is much better than Elevate’s CVT, which has much more of the ‘rubber band’ effect where the engine makes a straining sound when revved.
The new Seltos’s interiors are far more plush, and the back seat is comfortable too. The new Seltos has a larger boot than before, which is very useful for your airport runs.