Date: 202009
Local time of day: 0601-1200
Location: ZZZ.Airport, US
Light: Daylight
Aircraft: Challenger 350
Operator: Fractional
Operating under: Part 135
Flight plan: IFR
Mission: Passenger
Flight phase: Initial Approach
ATC / advisory: CTAF ZZZ; Center ZZZ
Reporter organization: Fractional
Reporter function: Captain; Pilot Flying
Reporter qualification: Flight Crew Air Transport Pilot (ATP); Flight Crew Instrument; Flight Crew Multiengine
Human factors: Confusion; Human-Machine Interface; Situational Awareness
Anomaly: Deviation - Track / Heading All Types; Deviation / Discrepancy - Procedural Landing Without Clearance; Deviation / Discrepancy - Procedural Published Material / Policy
Detector: Person Flight Crew
When detected: Taxi
Contributing factors: Human Factors
Primary problem: Human Factors

Narrative: Good rest; day VFR with clear skies throughout the flight. This was the second leg of the day; the first leg being a ferry flight. Uneventful flight. On arrival to the airport we both noticed and mentioned it to each other that ATC left us up a little high. Passing through 15;000 ft. or so and very close to what we thought was the airport. I mentioned 'rather than getting a lot of vectors let's just cancel and make a 360 to the left and go to ZZZZZ; which is the IAF on the RNAV GPS RWY XX); which we did. In no rush; I extended the outbound leg of the 360 turn. Coming out of the turn a little disoriented I asked; 'can you extend the centerline of the runway.' The SIC (Second In Command) which has little time in the plane and not very experienced with the FMS was having trouble putting in the centerline. I asked for a centerline from the RUNWAY; the SIC drew the path from ZZZZZ1; a fix on the approach. The approach is a 45 degree angle from the runway; so when he put the extended line it was from ZZZZZ1 not the runway. I asked again 'I don't think that's right; it doesn't line up.' It was still showing the 45-degree angle to the runway. I again queried him and said; 'What is the runway heading? Make the centerline off that; not any of the fixes.' By then; at around 1000 ft. AGL; we both saw RWY XX painted on the runway in front of us and thought; no worries; I see the numbers.On the landing roll out the chart did not pop up. I asked 'why are we not on the chart? The 350 shows the plane on all the charts'.Reaching the end of the runway the passenger came up and said 'guys; you are at the wrong field; ZZZ is 8 miles south of here; this is ZZZ1' He is a pilot also and was very sympathetic and said 'this happens so often; the operations people don't come out anymore.'I apologized and started planning the trip to ZZZ. I called dispatch and advised them of what happened and what we needed. We taxied back to the approach end of RWY XX and found a place to park and called the FODM (Flight Operations Duty Manager) while the SIC was getting the clearance from ATC. I was told 'he's not answering his phone'. I asked them to 'please find him; I need to talk to him'. A minute or so later [he] answered. I explained what happened. He was very calming and eager to work with me. We talked about the weather; the runway length and width; parachute activity in the area; VFR daytime only airport; he even gave me the frequencies to both airports. Our phones started to beep; at that time [he] said; 'I think they are trying to shut you down; I'll take care of it'. I mentioned that we both had plenty of duty time and felt fine to do the 8-mile flight. It is hard to recall every word but he mentioned something to the effect; 'ok; it looks good; let me check on something; I'll call you back'.After waiting a few minutes and thinking that we had covered everything we needed to for the flight; I decided to depart.The flight to ZZZ was uneventful. The passenger had no problem with the event and being a pilot himself in that area; he kept telling me 'don't worry it really does happen here a lot; ZZZ3 had a RWY XX also. They finally had to change the numbers to XY even though its heading is [different]'. We helped them load their car and they drove off.   Things we should/could have done...-Stayed with ATC and gotten better vectors to the airport.-Made sure the centerline was indeed off the runway NOT the FAF.




Synopsis: CL-350 flight crew reported landing at the wrong airport.