If that cat could find her way 30 miles away, just goes to show it IS possible.
Don't put a block in your imagination that it is more difficult because of the airport. All you need to do is imagine Wanda safely in your arms. Leave the How/Why/What/When bit to the Universe to work out.
Spend some time visualising playing with her in your home, as if she were already there. Also, you can add some new thoughts like "Wanda is so clever to find her way home, I knew she would get back safely"