Looking on the internet deeply has found these results:

to what do I owe the pleasure of is the most popular phrase on the web.

to what do i owe the honor of 120,700 results on the web	to what do I owe the pleasure of 132,800 results on the web More popular!
Some examples and use cases from the internet:	Some examples and use cases from the internet:
So, to what do I owe the honor? So, to what do I owe the honor of your presence? To what do I owe the honor, Molinari? I accept your apologies, but what do I owe the honor of this visit to? To what do I owe the honor, Count Mondego? Jefe, to what do I owe the honor? To what do I owe the honor, detectives? So, to what do I owe the honor?	Now, to what do I owe the pleasure of this call? To what do I owe the pleasure of the Church visiting my castle? Stella, to what do I owe the pleasure? To what do I owe the pleasure of this rather welcome pint of ale? So, to what do I owe the pleasure of this invitation? And to what do I owe the pleasure of your carbuncle? To what do I owe the pleasure of your... the pleasure of your visit, my dear girl? And to what do I owe the pleasure of this abuse?

to what do i owe the honor of

120,700 results on the web

to what do I owe the pleasure of

132,800 results on the web

More popular!

Now, to what do I owe the pleasure of this call?
To what do I owe the pleasure of the Church visiting my castle?
Stella, to what do I owe the pleasure?
To what do I owe the pleasure of this rather welcome pint of ale?
So, to what do I owe the pleasure of this invitation?
And to what do I owe the pleasure of your carbuncle?
To what do I owe the pleasure of your... the pleasure of your visit, my dear girl?
And to what do I owe the pleasure of this abuse?