You can list outdated packages by adding the
--outdated flag to list commad
pip list --outdated
Output of the command will show the currently installed version and the latest available version.
Django (1.9.7) - Latest: 1.10 [wheel] django-ckeditor (4.5.1) - Latest: 5.0.3 [sdist] setuptools (23.1.0) - Latest: 25.2.0 [wheel] virtualenv (15.0.2) - Latest: 15.0.3 [wheel]