1) Avoid popular dates and holidays - tickets are significantly more expensive. 2) Beware of distant airports - some low-cost airlines fly to small airports away from the city and transportation will cost you extra time and money. 3) Check if baggage is included in the ticket price. 4) On low-cost flights, make sure you have enough time to transfer. Individual flights often have to be purchased separately and you do not have a guaranteed transfer. Read this ultimate guide to searching for cheap flights.