11 Key Differences Between IndiGo, SpiceJet, and Vistara

4. Ancillary fees and checked-baggage policy

Ancillaries—seat selection, meals, extra legroom and baggage—often decide the final ticket cost. SpiceJet and other value carriers commonly charge for many extras individually; these fees can push a low base fare above competitors that bundle essentials. IndiGo tends to have clearer ancillary pricing and occasional bundles that make the final cost predictable. Vistara’s ancillary pricing frequently aligns with its premium service structure: upgrades and bundled options are available, and they often include perks that matter on longer flights. For travellers from the US, remember that checked baggage allowances and fees differ by route and whether your ticket is domestic-sector-only or part of an international itinerary. If you’re connecting from an international carrier, check whether baggage transfers are handled through a single ticket or require separate re-checks—ancillary rules can complicate connections with mixed-ticket itineraries. To avoid surprises, use each airline’s fare breakdown tool during booking and add typical extras to estimate a real-world price; that practice usually prevents last-minute fee shocks at the airport.