Delhi Booking fligh - Travel Agents - too expensive?

muna

Hello,
I have a question regarding booking flight tickets in Delhi. (flight delhi-goa rtrn)
I don’t have a credit card, so I need to book in person to pay in cash
.
Where can I find the best fares and make a booking in Delhi? Only at the airport?
I will be in Delhi on Friday, just for that day, so I didn’t want to waste time going all the way to the airport to book a ticket.

Is it ok to book in a travel agency? Would it be much more expensive or the diference woudn’t be too great? Any travel agencies to recommend? Most probably I will probably book with spicejet, as it has the best prices I found so far, but if the dif in price between booking directly with them at the airport is something like 500r I’d rather save time and pay a bit more.

And if I do need to go to the Airport, where do I buy the tickets? In the domestic or in the international airport? How much time should I need to do this? (go from delhi, buy and return)

I will be staying in the Paharganj, if that info helps…

Any help is very appreciated,

Thank you very much,

Joao