Statement:
It is harder for citizens of Iceland to travel than for citizens of Tonga

In the Global Passport Ranking rating Iceland holds position #52 ²⁰²³ out of 187 and Tonga is #21 out of 187 ²⁰²³.
Position of Iceland is worse than position of Tonga.

Referencies:

1. Global Passport Ranking ²⁰²³ by Henley & Partners

   The countries in the rating sorted by 'Access' in ascending order.

   Iceland	'Access' value is	82
   Tonga	'Access' value is	29