RA390 pilot reported landing at the wrong airport after a last minute change in destination.

Attributes
ACN	1410903
Time
Date	201612
Place
Locale Reference	ZZZ.Airport
State Reference	US
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Make Model Name	Premier 1
Operating Under FAR Part	Part 135
Flight Phase	Landing
Route In Use	Visual Approach
Flight Plan	IFR
Person 1
Function	Single Pilot
Qualification	Flight Crew Multiengine Flight Crew Air Transport Pilot (ATP)
Experience	Flight Crew Last 90 Days 67 Flight Crew Total 8200 Flight Crew Type 4750
Events
Anomaly	Airspace Violation All Types Deviation - Procedural Clearance Deviation - Track / Heading All Types Ground Incursion Runway

Narrative:

I was filed for ZZZ. The passenger changed the destination at the last moment to ZZZ1 and I thought I was talking to the tower at ZZZ1. I contacted the tower and was told to enter a left downwind pattern and cleared to land. These two airports are set up almost the same and within a few miles of each other. I landed without incident but at the wrong airport! We always fly to this particular airport and I thought this was the frequency to use. The proximity of these two airports are almost identical. I should have double checked the frequency prior to landing after changing the destination.

Original NASA ASRS Text

Title: RA390 pilot reported landing at the wrong airport after a last minute change in destination.

Narrative: I was filed for ZZZ. The passenger changed the destination at the last moment to ZZZ1 and I thought I was talking to the tower at ZZZ1. I contacted the Tower and was told to enter a left downwind pattern and cleared to land. These two airports are set up almost the same and within a few miles of each other. I landed without incident but at the wrong airport! We always fly to this particular airport and I thought this was the frequency to use. The proximity of these two airports are almost identical. I should have double checked the frequency prior to landing after changing the destination.

Data retrieved from NASA's ASRS site and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.