Booking a Singapore Airlines flight to or from India now shows up with an Air India flight number too. From June 1, 2026, the two carriers widened their codeshare agreement to cover every Singapore Airlines route between Singapore and seven Indian cities.
What happened
Air India expanded its codeshare partnership with Singapore Airlines effective June 1, 2026, placing AI-coded flight numbers on all Singapore Airlines services between Singapore and India, according to AeroRoutes. The seven Indian cities covered are Ahmedabad, Bangalore, Delhi, Hyderabad, Kochi, Kolkata, and Mumbai — meaning passengers can now book Air India flight numbers on Singapore Airlines-operated services across all of these routes. AeroRoutes describes it as "a broadening of the carriers' Star Alliance partnership benefits," building on the existing codeshare relationship between the two airlines.
Why it matters
A codeshare doesn't add new physical flights, but it does widen how travellers can book and combine itineraries. Air India frequent flyers can now earn and redeem on more Singapore Airlines-operated sectors between the two countries, and travel agents booking under an Air India PNR have access to Singapore Airlines' full India-Singapore schedule rather than only Air India's own operated flights. For connecting passengers, it can also simplify baggage-through-check and rebooking in case of disruption, since both flights sit under a single itinerary.
What this means for your trip
If you're booking a Singapore trip from Ahmedabad, Bangalore, Delhi, Hyderabad, Kochi, Kolkata, or Mumbai, compare fares and schedules under both the Singapore Airlines and Air India booking codes — the expanded codeshare means more combinations show up than before, and one might price or schedule better than the other for your dates. If you hold Air India frequent flyer miles, check whether your route is now bookable as a reward flight on Singapore Airlines metal, since the wider codeshare can open up award availability that wasn't there before.
Air India, per AeroRoutes: "AI-coded flight numbers to be placed on all SIA service between Singapore and India" from June 2026.
The bottom line
No new routes, but more ways to book existing ones — a small but useful widening of options for anyone flying between these seven Indian cities and Singapore.
