✈️ Low-cost airlines have completely changed global travel, making it possible for millions of people to fly affordably every year. This list highlights the world’s best budget airlines in 2025 — from Asia’s giants like AirAsia and IndiGo to Europe’s top performers like EasyJet, Ryanair, and Vueling. These airlines continue to grow by offering competitive prices, strong safety records, and reliable service across popular routes. Whether you're traveling for business, holidays, or weekend trips,