For the past three months, American Airlines Executive Platinum (and Concierge Key), members have received upgrades on Alaska Airlines. Platinum Pro members will also be able to enjoy this benefit.On Wednesday, June 30, Platinum Pro (75K elite Tier) will become oneworld emerald. This means that you will get more checked bags and priority check-in, as well as access to first-class lounges on international trips if those lounges are reopened. It will not only provide oneworld benefits but also upgrade Alaskan flights starting in the next few days.Alaska Airlines offers Executive Platinum upgrades on non-basic economy faresCan be confirmed up to 120 hours before departurePrioritized behind Alaska's MVP Gold 75K membersPlatinum Pro members will be eligible for upgrades to Alaska via the same process. This means that they are eligible for upgrades on Alaska fares other than basic economy. Upgrades can be made starting 120 hours before departure.Alaska Airlines First ClassThis is a huge win for Platinum Pro members flying Alaska. They may be able to fly Alaska metal better than American metal, and their upgrade window will open earlier. This is bad news for Alaska's MVP Golds, who will likely see fewer upgrades due to being lower in the pecking list than the 75K elites.American Airlines Elites Flying on Alaska will be upgraded based on their fare class and the time they request it. This means that if two Executive Platinums are competing on the upgrade list, it will be the one with the higher fare class who wins. If their tickets fall within the same fare category, the tiebreaker is the one who placed the upgrade request earlier.