USA Flight

yesterday, i had spent many hours on booking my USA domestic flight > <

i continued searching the flight on the internet lately
and when the date gets close to my departure date
the available flights become fewer and much expensive > <
i am not aware of this situation until yesterday!!!
i always hesitate... such a bad habit...
anyway, i successfully booked my round-trip flight last night
although it's expensive than i think...

besides, i have learned one thing..
if i book USA domestic flight 14 days earlier than the departure date
i can directly connect to the airline official website to book the plane
or i have to book the ticket through the 3rd wetsite
such as "cheapticket.com" or "orbiz.com"
they will charge a fee
besides, they couldn't accept my address in Taiwan when i tried to book the flight yesterday...
but Delta.com can accept it!!

the flight will charge a "trip protection" fee
the price is 13.5 on Delta.com
but 14.99 on cheaptickets.com
i don't know the reason now~~
maybe it earns the difference from it