Budget airlines are airlines that offer low-cost flights. They focus on providing cheaper fares by offering fewer services and amenities compared to traditional airlines. Full definition
Make use of budget airlines and save yourself a lot of time and money. (adventureinyou.com)
So far I've almost exclusively flown with budget airlines without reward points. (theglobetrottingteacher.com)
For example, if you like to book cheap flights on budget airlines or stay at hostels, it might be better to focus on earning miles you can use to offset travel purchases. (millionmilesecrets.com)