Cat Bi International Airport (HPH) serves Haiphong; Incheon International Airport (ICN) serves Seoul.
The airports are 1,649 miles apart by great-circle distance.
Roame's current schedule feed shows nonstop service from HPH to ICN.
Airlines represented in the current schedule are G Switch Works (A1), Hahn Air Systems (H1), VietJet Air (VJ) and Flexflight (W2).
Published schedule dates span Sep 7, 2026 – Sep 2, 2027.