IndiGo vs Air India for a family of 5: full domestic cost breakdown for bags and seats in 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 · 11 min read
For a family of five flying domestically in India, the cheapest base fare is almost never the cheapest trip. Once you add seat fees for five passengers across potentially two sectors and factor in baggage for a family that actually packs things, Air India's all-in fare often closes the gap with IndiGo — and sometimes beats it. Here is the math.
TL;DR — the honest answer before the math
For a family of five on domestic routes in 2026, IndiGo's base fare is usually cheaper but the true all-in cost — once you add five seat selections and checked baggage — often ends up within ₹2,000–₹5,000 of Air India's fully-loaded fare, and sometimes more. Air India's standard domestic economy fare includes 25 kg checked baggage per passenger (on most fare classes) and one free advance seat selection. For a family carrying real luggage and needing to sit together, this bundled structure beats IndiGo's à la carte pricing more often than people expect. The tipping point is usually when you need more than about 10–12 kg of checked baggage per passenger on average, or when IndiGo's seat fees for a family-friendly configuration add up to more than ₹1,000–₹1,500 per person.
The base fare gap — what IndiGo's cheaper ticket actually buys
On a typical domestic route — say Mumbai to Goa or Delhi to Bangalore — IndiGo's lowest published fares are often meaningfully cheaper than Air India's cheapest economy class. The gap depends heavily on how far in advance you book and the route, but on popular routes IndiGo's cheapest fare might be in the range of 15–30% below Air India's equivalent economy option at the same booking window. That looks compelling for five tickets.
But that IndiGo base fare buys you: the seat, one carry-on bag (typically 7 kg, maximum two pieces), and whatever food IndiGo staff happen to be selling on board. That is it. Everything else — checked luggage, advance seat selection, a snack box — is extra.
Air India's standard domestic economy fare (not the 'Economy Lite' or sale bucket) typically bundles 25 kg checked baggage per passenger and one advance seat selection. On a longer domestic sector (over 1,000 km), Air India also includes a meal in most fare classes. The economics of bundled versus unbundled services are very different at family scale.
Seat fees: the ₹ number that changes everything for families
For a family of five, seat fees on IndiGo add up fast. As of mid-2026, IndiGo's seat selection fees on domestic routes typically range from around ₹200–₹500 per seat for standard window or aisle seats (exact prices vary by route, demand, and how close to departure — check the booking flow for current rates). For five passengers on a round trip, that can add up to ₹2,000–₹5,000 in seat fees alone — and that is for basic standard seats, not extra-legroom rows.
On Air India, standard economy fares include one advance seat selection per passenger. For five passengers, that is five free seat selections. When booking a family of five and you need five specific adjacent seats, this matters a lot — both for the cost and for the certainty of sitting together.
The caveat: Air India's cheapest domestic bucket ('Economy Lite' or equivalent sale fare) may not include free seat selection or may include a lower baggage allowance. Always read the fare conditions line by line in the booking flow. The bundled benefits only apply above that entry-level bucket.
Baggage math for a family of five — does IndiGo's add-on beat Air India's bundle?
Let me do the math on a realistic family trip. A family of five (two adults, two school-age kids, one toddler) typically travels with roughly 60–80 kg of checked luggage — think a large suitcase each for the adults and older kids, a stroller, a cot, and a bag of random toddler gear that somehow weighs 12 kg.
On IndiGo: the base fare typically includes zero checked baggage. You can add checked bags at booking (cheaper) or at the airport (expensive — the airport counter rate is often significantly higher). A pre-booked 15 kg bag might run in the range of ₹500–₹900 per sector per bag; a 25 kg bag somewhat more. Actual rates fluctuate with route and demand — always check the IndiGo website. For 70 kg total on a round trip across five bookings, the checked baggage add-on can reach ₹4,000–₹8,000 for the trip.
On Air India: 25 kg per passenger on standard economy = 125 kg combined allowance for five passengers. Most families of five will comfortably fit within this. Air India also allows baggage pooling within the same PNR on domestic routes for some fare classes — meaning if one passenger uses only 10 kg and another uses 30 kg, you may not be charged for the overage on the 30 kg bag. Verify the current pooling policy with Air India at booking — it has changed in the past and the fine print matters.
Bottom line: if your family travels light (carry-on only or one bag between two adults), IndiGo's add-on approach can be cheaper. If you are travelling with strollers, car seats, or real suitcases, Air India's bundled allowance frequently wins on total cost.
What about the infant and toddler — fees and lap policies
For infants under 2 travelling on a lap (no separate seat): IndiGo charges a domestic infant fee in the range of a few hundred rupees per sector — check the current rate in the booking flow. Air India charges a similar nominal fee. Both allow one lap infant per adult.
If you buy a separate seat for a toddler under 2, you pay the full child fare (same as adult on both airlines domestically, since Indian domestic pricing does not have a separate child tier for those with their own seat). Strollers and prams are typically allowed as checked items or gate-checked at no extra charge on both airlines — but confirm at check-in and tag the stroller with your contact details.
One thing IndiGo gets right: their domestic boarding process is generally faster and the turnaround times are shorter. If you have small children who need to pre-board, ask — most IndiGo gates allow families with infants to board in the first wave.
Route-by-route: when each airline makes more sense
There is no single right answer — it depends on the route, season, and your family's packing habits. A rough guide:
- Short sectors (under 1 hour, e.g. Delhi–Chandigarh, Mumbai–Pune): IndiGo almost always wins on fare. The trip is short enough that carry-on works for most families, seat comfort is less critical, and the time saving of IndiGo's quick turnaround matters. The meal saving is irrelevant on a 50-minute flight.
- Medium sectors (1–2 hours, e.g. Mumbai–Goa, Delhi–Jaipur, Bangalore–Hyderabad): Run the all-in math for your specific dates. IndiGo's base fare advantage is real, but seats + bags can close the gap with Air India. Use FlightGPT to compare both fares quickly, then calculate the add-ons separately.
- Long sectors (over 2 hours, e.g. Delhi–Bangalore, Mumbai–Kolkata, Delhi–Chennai): Air India's bundled meal, seats, and 25 kg baggage make it more competitive on a per-passenger all-in basis. For five passengers on a 3-hour flight, Air India's slightly higher base fare is often offset by what you do not have to pay extra for.
Want to check both at once? FlightGPT shows IndiGo and Air India fares on the same screen — filter by flexible dates if you have any flexibility around a weekend or holiday.
Bottom line: the true cost formula for a family of five
Here is the calculation to run before booking:
Total IndiGo cost = (base fare × 5) + (seat fees × 5) + (baggage add-ons for total checked weight)
Total Air India cost = (standard economy fare × 5) — usually seats and 25 kg bags included
On most domestic routes for a family that packs properly and needs adjacent seats, the difference narrows to somewhere in the range of ₹1,000–₹4,000 total for the round trip — not the ₹10,000+ that the headline base fare gap might suggest. Occasionally Air India is genuinely cheaper all-in, especially during its periodic sales where full-service fares are discounted.
One more thing to check: IndiGo's 6E Prime fares (where they exist) bundle seat selection and baggage together and may narrow the gap with Air India for frequent travellers. Also read: how to fight IndiGo seat separation under DGCA rules and Air India's Cloud Chasers children's kit on long-haul flights.
Frequently asked questions
Does IndiGo offer any family discount for groups of five or more?
IndiGo does not have a specific 'family discount' on domestic routes — fares are the same per adult regardless of group size. For groups of 9 or more, IndiGo has a group booking desk that may negotiate block fares. For a family of five, the only saving lever is booking well in advance, using IndiGo's sale fares, or bundling seat and baggage add-ons at booking (where they are cheaper than at the airport).
What is Air India's baggage allowance for domestic economy in 2026?
Most standard domestic economy fares on Air India include 25 kg of checked baggage per passenger. The cheapest 'Economy Lite' bucket may carry a lower allowance of around 15 kg. Always check the fare conditions in the booking flow — the baggage allowance is listed next to the fare. Verify with Air India's website before booking as allowances can change.
Can I pool baggage allowances across five passengers on IndiGo?
IndiGo does not offer domestic baggage pooling as a standard feature — each passenger's checked baggage allowance is individual. If you have added 15 kg for one passenger and they only use 8 kg, the other 7 kg does not automatically transfer to another family member. Air India has offered pooling on some fare classes on domestic routes, but the policy has varied — verify at the time of booking.
Does Air India still fly on domestic routes after the Vistara merger?
Yes. Vistara fully merged into Air India in late 2024. Air India now operates both the former Vistara routes and its own legacy routes domestically. Air India Express (separate brand, low-cost model) handles additional routes. Between Air India and Air India Express, the combined network is extensive. Vistara branding no longer exists as a separate airline.
Is it cheaper to book all five passengers on one PNR or separate bookings?
One PNR is almost always better for families. It is cheaper to add seat selection (the airline is more likely to seat adjacent passengers from the same PNR together), simpler to manage changes, and gives you stronger standing under DGCA's family seating circular if the airline tries to separate you. The only exception: if the fifth ticket would price the booking into a higher fare bucket due to airline yield management — compare single and split bookings for large parties.