How i can change the date on my flight by website?

I try to change my flight on website but i cannotHow i can change the date on my flight by website?
You can change the flight dates after paying the rescheduling charges to the airline by way of credit card. Just click on the PNR lookup section, fill the necessary details and you can get the change flights option. There select the dates you want to change and pay the charges through the credit card.

All DoneHow i can change the date on my flight by website?
Can't be done, you have to call the airline.
What Charlie said - and there will be a fairly hefty change fee.....