Europe - Changing port of entry

Hello,

I have a single entry schengen visa from portugal from march 9th. I was planning on flying into lisbon (i said so in my application) and spend 10 days there and then fly to milan and travel in italy for 10 days, finally exiting the schengen zone via milan.
However, now that i am looking at flights, its much cheaper for me to fly into italy and then go to lisbon from italy. can i change my port of entry?
Thanks

Welcome to Flyertalk!

The rule is that you should get your visa either from the country that is your main destination, or from the country that is your first point of entry if there is no main destination.

If you are dividing your time 50:50 between the two countries then, strictly speaking, you have no main destination which means that, strictly speaking, you should have got your visa from Italy (your first point of entry). So, to be totally on the safe side you may want to plan on nine days in Italy and eleven in Portugal so that you can claim that Portugal is your main destination. However, in practice it's not going to matter. You are perfectly entitled to travel to Portugal via Italy, and make Italy your first point of entry.

Enjoy your trip!

Don't worry about it. Bem vindo a Portugal :).

With your valid visa in the presented passport, if you have an itinerary that shows you are going to spend a bunch of days in Portugal and have hotel reservations there as well, Italian passport control almost never makes a stink of it after being shown such (if they even ask to see it).

Some countries' passport control desks are more strict than others -- Italy is not one of those few countries that is most likely to make a stink about this, although who knows what some airline reps may do at check-in/boarding.