Originally Posted by
Maz1982
Stupidly only my sister had been getting real airmiles, I've flown with multiple carriers over the years and never used a mileage card and only signed up with individual airlines programmes. She has told me for years. Will be flying with Saudia which I think is SV on here, will be flying business so will sign up to the alliance
Alliances do *not* have frequent flyer programs.
You sign up to an airline frequent flyer program. The airline can be a member off an alliance. Some are and some are not in alliance. Airlines can also have ff partners outside an alliance.
Depending on the detailed terms and conditions you can earn ff miles/points/avios to your ffp when flying on a partner/alliance airlines.
Saudia is a member of the Skyteam alliance.
https://www.skyteam.com/en/
A broad guide but check your ffp's web site-->
https://www.wheretocredit.com/saudi-arabian-airlines
From your profile your are in GB (UK). KLM/AirFrance is the largest Skyteam airline in your part of the world.