abababababab
iPad Fan
I find that the excavation flights drop a map about every 10 flights. Unless you are willing to use Golden Dice, in which case you get more like 3 out of 10 flights. All the excavation flights do is give a terrible drop rate for a single random map to one of those five destinations. So basically, it's just a way to get destination maps without spending greenies on a full map set (12 greenies for three random maps). As Nutty points out, you also get a shot at 15 more stars (3 stars for each of five excavation flight destinations), but since my 240 stars are entirely useless in the game, who cares?! LtCol Rehab (may show as "username") - need Long Distance (LD) flight items like spare props, osc beacons, fuel hoses, deicers. LtColRehab2 - need LD flight items, thanks all!
I got the map from Rome. The set contains just one map. Useless.