Short
Would google index my web-page if it's not on my website but it's in the sitemap?
Long
We have a few product price pages i.e. for product bwm-x3, following are 3 URLs:
-> bmw-x3-price-in-city1
-> bmw-x3-price-in-city2
-> bmw-x3-price-in-city3
We have a link on our website to these pages if the price of bmw-x3 is available in the respective city.
Now, we are planning to also create pages for cities where we don't have prices but we have prices in nearby cities but we don't want to link these pages from website. Although, we want users to land on this page from google.