Air India Express Interline Baggage: Which Partners Allow Through-Check 2026
By Saanvi Iyer (Saanvi Iyer writes offbeat destination guides for Indian travellers — places that work in monsoon, shoulder-season picks, and the cities Indian first-time international travellers underrate. Based in Bangalore, perpetually mid-itinerary.) · Published · 9 min read
Air India Express's interline network is growing post-AirAsia India merger, but through-check is still not universal. Here's exactly which partner situations get your bags tagged to the final destination — and what to do when the domestic flight is late.
TL;DR — Air India Express Interline Through-Check in 2026
Air India Express (AIX) has interline agreements with a limited set of partners as of 2026. Through-check of bags happens automatically when you're on a single booking that covers both flights and both airlines have a through-check interline arrangement — this is most reliable within the Air India Group (Air India + Air India Express on a combined booking). For third-party international airlines connecting onto AIX (or vice versa), through-check is possible only when a formal interline agreement exists and the booking was made as an interlining itinerary. Independent bookings on separate PNRs: no through-check, no protection.
The former AirAsia India routes, now operated by Air India Express, follow AIX's baggage rules — not AirAsia's. If you're used to AirAsia's old allowances and policies from before the merger, recheck the current AIX terms.
What Happened When AirAsia India Became Air India Express?
AirAsia India formally ceased operations in late 2023 and was absorbed into Air India Express. The Tata Group, which owns Air India, completed the consolidation of its low-cost carrier operations under a single AIX brand. The aircraft (mostly A320s), many of the routes, and most of the crew transferred over.
For passengers, the practical change is: routes that used to be 'I5' (AirAsia India's code) are now 'IX' (Air India Express). Any interline agreements that AirAsia India had (primarily through AirAsia Group) were not automatically inherited by AIX. AIX has been building its own interline network under the Air India Group umbrella, but it's a smaller, different network than what AirAsia India had through its parent group.
This matters if you're booking connecting itineraries that previously worked because of AirAsia India's group interline agreements with AirAsia Malaysia or AirAsia X. Those routes no longer apply the same way — you need to verify current AIX interline status directly with the airline or your booking agent.
Which Partners Does Air India Express Have Interline Agreements With?
AIX's interline network as of 2026 includes Air India (its parent) and a selection of international carriers, primarily in the Gulf, Southeast Asia, and a few European carriers that partner with the Air India Group. The specific list changes — AIX has been adding partners since the AirAsia India merger completed.
The most reliable through-check scenario is: domestic Air India connecting to international Air India Express, or vice versa, on a single Air India Group booking. Both carriers are in the same group, share GDS inventory, and have documented through-check arrangements.
For international third-party carriers, through-check onto AIX requires: (a) a formal interline agreement between that carrier and AIX, (b) the itinerary to have been booked as an interlining connection (usually through a GDS or the airline directly), and (c) the check-in agent at the originating airport to process it as through-check. Even with all three conditions met, it's worth explicitly asking at the desk: 'Can you please confirm my bags are tagged to [final destination]?' and checking your bag tag destination before leaving check-in.
The safest source for the current interline list is AIX's official site or by calling their customer care. OTAs and aggregators don't always reflect the most current interline network, and I've seen connections displayed as 'protected' on booking sites that, at check-in, turned out not to have through-check enabled.
What Happens If Your Domestic Connection Is Delayed Before an AIX International Flight?
This is the scenario that keeps me up at night when I'm booking multi-leg itineraries. Say you're flying domestic IndiGo from Jaipur to Kochi, then catching an Air India Express flight from Kochi to Dubai on a separate booking. Your IndiGo lands 90 minutes late. You miss the AIX flight. What happens?
If it's a separate booking — separate PNR, separate airline — almost nothing happens in your favour. IndiGo's responsibility ends at Kochi (they got you there, eventually). AIX's responsibility starts when you check in for the Dubai flight, which you've now missed. You'll likely need to buy a new ticket on the next available AIX or Air India flight, and the costs are entirely yours.
If you booked both as an interlining itinerary on a single booking through Air India (domestic feeder on Air India/AIX connecting to AIX international), the situation is better: the airline group is obliged to rebook you on the next available departure to your destination. The key phrase is 'single ticket' or 'single booking reference' — if you have this, you have protection.
Practically: for AIX's popular Gulf routes (Kochi, Trivandrum, or Calicut to Dubai, Abu Dhabi, Muscat, Kuwait), many travellers from South India start their journey with a domestic feeder flight. Booking that feeder on the same Air India/AIX booking is always the safer option. The fare might be marginally higher than cobbling together two cheap fares separately, but you're buying protection against a very real risk.
DGCA has guidelines on carrier liability for missed connections on single-ticket bookings — verify the current framework at dgca.gov.in, since the rules get updated periodically.
Baggage Allowance on AIX: What the Former AirAsia India Traveller Needs to Know
AirAsia India operated on a strict low-cost model: no free checked baggage on base fares, everything was add-on. Air India Express largely continues the same model, but there are some differences worth flagging.
AIX's baggage allowances vary by fare class and route. On Gulf routes (which are high-volume for AIX), the allowances tend to be more generous than on domestic routes — typically in the 20–30 kg range for economy checked bags, depending on the fare. On domestic routes, the base fare often includes 15 kg, with upgrades available.
When you have a combined domestic-to-international itinerary on a single AIX/Air India booking, the through-fare rule generally applies: the higher allowance (usually the international leg's) applies to the whole journey. This is the benefit of a combined booking — you don't end up penalised for excess on the domestic leg when your international allowance is higher.
If you booked separately: each leg's allowance is independent, and the domestic check-in desk will apply the domestic allowance to your bag before tagging it. You could end up paying excess on the domestic leg even though your international leg's allowance would have covered you. Another reason combined bookings win.
How to Book an AIX Interline Connection That Actually Gets Your Bags Through
The cleanest path: book directly on Air India's website for itineraries that combine Air India domestic feeders with Air India Express international flights. The Air India Group booking engine integrates both carriers, generates a single PNR, and applies through-check automatically.
Second option: book through a full-service travel agent who has access to GDS (Amadeus, Sabre, or Galileo). A competent agent can build an interlining itinerary on the GDS that connects AIX with partner carriers, ensuring through-check eligibility. This is particularly useful for routes where you need a non-Air India Group carrier for the international leg.
Travel agents using FlightGPT Partner (the B2B portal) can access GDS-connected inventory, which is the right tool for building these kinds of interlining itineraries — the portal surfaces fare options with connection protection that OTA self-booking often misses.
What to avoid: building a 'connection' on MakeMyTrip or Cleartrip by adding a separate flight segment that happens to connect. These are almost never through-checked and offer no protection. See our full breakdown of self-transfer risks on Indian OTAs.
And before you book any connection, check the minimum connection times at Indian airports — the interlining protection only helps you if there's a reasonable chance of making the connection in the first place.
Frequently asked questions
Does Air India Express through-check bags to the final international destination?
Yes, but only under specific conditions: both flights must be on a single booking reference (single PNR), and either both carriers must have an interline agreement that enables through-check, or both segments must be within the Air India Group (Air India + Air India Express). Separate bookings don't qualify for through-check regardless of how close the connection is.
Did Air India Express inherit AirAsia India's interline agreements?
No. AirAsia India's interline agreements (through the AirAsia Group) were not transferred to Air India Express when AirAsia India was absorbed in late 2023. AIX has been building its own interline network under the Air India Group umbrella, which is different from AirAsia India's former partnerships. Always verify current AIX interline status directly with the airline.
What if my IndiGo domestic feeder flight is delayed and I miss my Air India Express international departure — who pays?
If the two flights are on separate bookings, neither airline pays. IndiGo's liability ends at the connection point; AIX has no obligation for a missed flight you booked separately. If you're on a single Air India Group booking covering both segments, AIX is obliged to rebook you on the next available departure to your destination at no additional charge.
How much checked baggage does Air India Express include on Gulf routes?
Gulf route allowances typically range from around 20 to 30 kg for economy checked baggage depending on the fare class and booking date, as of 2026. Base fares tend to include less; higher fare classes include more. Verify the specific allowance for your booking on the AIX website before travel — and if you have a combined domestic-international booking, check whether the higher international allowance applies to both legs.
Can I get AIX interline through-check when booking on MakeMyTrip or Cleartrip?
Almost certainly not. OTAs typically bundle separate PNRs into a visual 'connection' without setting up formal interline through-check. To get genuine through-check, book directly on the Air India website for Air India Group combined itineraries, or through a GDS-connected travel agent who can build a proper interlining itinerary.
Which airports are most common for AIX domestic-to-international connections?
Kochi (COK), Trivandrum (TRV), and Calicut (CCJ) are the main South India hubs for AIX Gulf connections. Bangalore (BLR) and Mumbai (BOM) also feature as connection points for some AIX international routes. At all of these airports, the domestic-to-international transfer still requires moving between terminal areas — factor in at least 90 minutes, and more if you need to collect and recheck bags.