I don't think Dex was ever planning on taking a trip, not unless Deb became too much of a problem. I think he just went to the airport to catch Victor before he got away. I kind of like the fact that the Russian mob is now involved too. That could lead to some interesting complications.
On the showtime forum I said that I liked the fact that Deb knows everything already. I think that makes things less predictable. In general I like the tone that this episode sets for the season.