Mumbai International Airport (MIAL) has finalised international slot allocations for the Summer 2027 schedule, assigning slots to 38 overseas airlines, according to sources. The schedule begins in March 2027 and follows consultations between the airport operator and international carriers.

Twelve of the 50 international airlines operating from Mumbai have not been allocated slots for the next summer schedule. The affected carriers operate about 16 daily departures to 14 destinations, and could shift those services to Navi Mumbai International Airport (NMIA).

The proposed transition is linked to planned renovation work at Mumbai airport’s Terminal 1, which is scheduled to begin early next year. The arrangement is not expected to affect about 91 per cent of the airport’s existing traffic capacity, according to the sources.

Adani Airport Holdings (AAHL), which operates both Mumbai and Navi Mumbai airports, did not comment on the allocation. The Airport Operators’ Committee (AOC) has alleged that MIAL made the decision unilaterally and did not follow international slot allocation guidelines issued by the Ministry of Civil Aviation and the International Air Transport Association.

MIAL had initially planned to begin the partial shift of international operations on October 25, but deferred the move to March 2027 after several foreign airlines raised concerns about the transition plan. The revised schedule is intended to provide additional time for coordination between carriers and the two airport operators.

Air India, Air India Express, IndiGo and Akasa Air, along with AAHL, have separately announced plans to move their international operations to NMIA in phases over the coming months. The latest allocation indicates that the shift will initially involve selected airlines and routes rather than the entire international network operating from Mumbai.