T'way, a Korean LCC, is planning NGO-GUM charter:
https://www.routesonline.com/news/38...in-march-2018/

This airline has been operating a daily KIX-GUM for a while and recently granted 6/w (or was it daily) NGO or FUK to GUM 5th right. The schedule is better than UA's soon-to-be single daily flight which Japanese visitors return at 7am whereas T'way offers return flight at 4pm. Being an LCC, cost might be lower than UA. Could be another blow for UA's GUM operation if T'way officially launches NGO-GUM.