I personally prefer IndiGo for domestic flights in India because of its punctuality, affordable fares, and wide connectivity across the country. For a more comfortable experience, especially on longer routes, I like Vistara as it offers great in-flight service and a premium economy option. When it comes to international travel, I usually choose Air India since it provides non-stop long-haul flights from India to destinations like the USA and Europe, which saves a lot of time.