When originally spotted it had red lights on that where in a saucer or disc shape. The object was moving left to right and stopping on a dime. At first we thought it could be a drone but I thought the altitude was too high for any civilian drone that I know of. At one point the object descended a straight down very quickly and was out of our sight for about a minute and a half. If then resurfaced what would be about a half a mile away this time it went to an even higher altitude than it was at originally. And then in one sweeping motion it descended once again about 75 feet in a sweeping motion and went to the right for about a mile and then stopped. It stayed in that location for roughly 6 to 10 minutes going back and forth left to right. After that it went back to the left again and descended one more time, again dropping straight down. About five minutes later it resurfaced for the last time it still had red lights at this time. Is final flight came towar! ds us and off to our left slightly and gave us the opportunity to get a better look at it. As it was coming towards us the entire light pattern changed and it changed into the pattern that I can say only perfectly resembles that of a common airplane and as it passed us it continued on a perfectly straight flight pattern and looked exactly like a common commercial aircraft as far as the lighting. Then it just continued on that that flight pattern until it was out of our sight.