the cheapest way to take a flight is to book it 1 year in advance.(promo)
most of the time, some flights in promo, will have the $0.50 fare. but you will have to book it 1 year before.
thats the cheapest way to travel..
been doing it for years now.
i book 1 ticket per week for $0.50, if you do this every week by the next year, you will be able to travel for the price of $50(laggage and food) once a week