Originally Posted by
yeunganson
Even if Korea Air is buying Asiana is approved, the deal doesn't close until at least summer 2021. Then it will be another year or two or three for integration. If we use Marriott swallowing SPG as an example, it was 2015. It wasn't until 2018 before the frequent staying guest programs were merged. So unless South Koreans are super efficient compared to staff at Marriott/SPG, it will take about the same 3 years is my guess.
It could be, although if we use another airline merger as an example (AA/US), one thing that people might get worried about is OZ exiting Star early. US Airways exited Star Alliance to join Oneworld a couple of years before their FFP was fully merged with AA's, so OZ being pulled out of *A to join Skyteam a couple years before the FFP merges into Skypass would affect some people's redemption options (no full Japan partner, trading TG and SQ for VN and GA and the entire LH family for AF/KL/OK, etc).