Buying ticket at the counter in Europe?

I've read that buying ticket at the counter in US doesn't make sence,
while in some other parts of the world it does. What about Europe?

Here is a little twist. My wife already have a ticket ... - Milan -
London - San Francisco, but would like to reroute her flight in Milan
due to the latest events. Does it make sence for her to buy the ticket
at the counter in Milan, of it's better for me to order it via internet
2-5 days in advance?

aloha.kakuikanu wrote:

I've read that buying ticket at the counter in US doesn't make sence,
while in some other parts of the world it does. What about Europe?

Here is a little twist. My wife already have a ticket ... - Milan -
London - San Francisco, but would like to reroute her flight in Milan
due to the latest events. Does it make sence for her to buy the ticket
at the counter in Milan, of it's better for me to order it via internet
2-5 days in advance?

Buying in advance might get a lower fare.