Haven’t flown a drone in awhile. Since then FAA rules have changed and you have to notify the airport control tower if flying within 5 miles of an airport for hobby or recreational purposes.
I tracked down the control tower’s number: 402-271-7505
They ask that you call the day you are going to fly, give them your maximum flying height and your phone number.
I mentioned I’d probably fly 50-60 feet, and they said that wouldn’t be an issue.
Note: DJI hasn’t added OMA’s and MLE’s (Millard) into their No FLY ZonesList yet as of 4/26/2016.