Are you a frequent flyer on Alaska Airlines or American Airlines? If you are, be aware that changes are coming to the Alaska Airlines-American Airlines partnership. As mentioned in the title, the changes will kick in once March 2020 rolls around.

According to the latest update, Alaska Airlines Mileage Plan members will no longer be able to earn Mileage Plan miles on American Airlines international flights with effect from March 1, 2020. Additionally, Alaska Airlines Mileage Plan members will also no longer be able to redeem their miles for award travel on American Airlines international or domestic flights.

Traveling on international flights marketed and operated by American Airlines? For those whose trips were booked on or after October 2, 2019, they will continue to earn miles as per normal so long as their travel is completed by the end of February 2020. For those whose trips were booked before October 2, 2019 for travel occurring after February 29, 2020, don't worry - you will still get to earn Alaska Mileage Plan miles. Remember to submit a mileage credit request after your flight is completed to earn Alaska miles retroactively.

While Alaska Airlines Mileage Plan members may be disappointed with the changes that they have to contend with very soon, Alaska Airlines wants to reassure its customers that American Airlines remains a valued partner and that many of the perks will continue to be available.

For starters, Alaska Airlines Mileage Plan members will still get to earn one Mileage Plan mile for every mile flown on eligible domestic American Airlines flights with an Alaska Airlines flight number to select destinations in eastern United States, the Midwest as well as Canada. In short, these flights are operated by American Airlines but marketed by Alaska Airlines.

And in case this comes in handy, know that the base miles earned and class of service bonuses earned on eligible American Airlines-operated flights continue to count toward Alaska Airlines elite status.

Another thing that's not changing, Alaska Lounge members will still be able to access nearly 50 Admirals Club airport lounges globally when they fly on an Alaska Airlines or American Airlines flight. You may find the Admirals Club locations here.

Denise Bay is a staff writer at Email: