Malaysia Airlines (MH, Kuala Lumpur International) and Singapore Airlines (SQ, Singapore Changi) have tightened their cooperation by launching joint fare products for travel between Singapore Changi and Kuala Lumpur International, after formalising their strategic joint business partnership in January 2026. The new fares build on their existing codeshare and offer improved connectivity across their combined networks. The carriers are also working on reciprocal lounge access, coordinated schedules and joint corporate travel arrangements. A commercial cooperation framework agreement was signed in October 2019, and a reciprocal frequent flyer miles accrual and redemption was introduced in February 2024.