https://skynair.com/blog/how-d....o-i-request-an-upgra

How do I request an upgrade with Asiana Airlines? - Our Blogs | Best place to visit in the world | SKYNAIR

Connect with Asiana Airlines by dialing their toll-free OTA number +1-800-860-5036 (no waiting) and discover a seamless upgrade policy and unparalleled customer care service.