Honolulu is about 1.7 times smaller than Cayman Islands.

Cayman Islands is approximately 264 sq km, while Honolulu is approximately 157 sq km, making Honolulu 59.36% the size of Cayman Islands.
Tip: This to-scale comparison of Cayman Islands vs. Honolulu uses the Mercator projection, which distorts the size of regions near the poles.