1. Crossing the bridge rice noodles: Crossing the bridge rice noodles is a special food in Kunming, which consists of soup base, rice noodles and various ingredients. You can try to taste authentic crossing the bridge rice noodles at some food stalls or restaurants along the way.

2. Yunnan snacks: Kunming, the capital of Yunnan, is rich in Yunnan snacks. You can try cold noodles with shredded chicken, fried crispy meat, cold rice noodles and other delicacies, which are usually found in street stalls or local restaurants.

3. Barbecue: On the way from Kunming South Railway Station to Changshui International Airport, you may pass some barbecue stalls or restaurants. Try some local kebabs, grilled fish and barbecues to enjoy the delicious barbecue flavor.

4. Tofu pudding rice noodle: Tofu pudding rice noodle is another traditional food in Kunming, which consists of tofu pudding, rice noodle and various seasonings. You can try this delicious food at the local rice noodle shop. There are usually many flavors to choose from.

These are some food recommendations on the route from Kunming South Railway Station to Changshui International Airport. When you are on the road, you can find more local food recommendations by asking local residents or using food applications. Have a good meal!