What destinations have the most availability using the 2-4-1 companion voucher?

[tflights]

What destinations have the most availability using the 2-4-1 companion voucher? excluding Europe

[Aston100]

NYC innit?

[tflights]

any more?

[Froggee]

Typically India, Pakistan, Bahrain, and places in the US that are less popular such as Baltimore, Philadelphia, Pittsburgh and Cincinnati.

And New York as already said because they have so much capacity.