Hi, Dr. Bill. Welcome to FT!!

I assume that you mean ICN and not ICH, and similarly, MRU and not MUR. I, too, have originated AONEx itineraries from those cities when the price was right. Yes, the pricing has been removed from the OW website. I think that it has something to do with truth-in-pricing laws in Australia. You can find current pricing using ExpertFlyer. To find the fare for a city, go to the Fare Information page, enter that city for both departure and arrival cities with appropriate dates, and the xONEx fares should show in the resulting display.