Our flight back home was from Cochin. We had an international flight connecting via Delhi. Flight was super comfortable and smooth. Food was better than the last time still it were small portions. Air India has a lot of leg space, and 2.5 hours just went by, and we were back to polluted Delhi that has awesome food!
The trip was costly! we were two families, and air tickets, stay and food was a bit much. But the per person cost always comes down in a big group. We used LTC as my mother is a government employee and that got our tickets reimbursed.
People also plan a week long trip, only to Kerala and they are able to cover up most of the best cities- Kovalam, Alleppey, Munnar, Kochi. Kerala really is the most beautiful city and people are just heart warming!