Originally Posted by
annaschummi
Since I am flying FCO-LAX definitely on a 777
I doubt you can say that it is definite.
Having recently travelled on FCO-JFK-FCO and kept an eye on the flights in the days running up to my trip, an A330 was used on several days which had previously been planned for a 772.
Of course, if having WiFi is important to you, you would really appreciate such a swap!