With the Google Maps Travel Route plugin you can easily show a static route on Google Maps.
Create a Google Maps API key here.
Pixels are used to define the dimensions.
By simply adding Shortcode
[travelroute] in your post's /page's content.
Once you add a list of locations from Travel Route > Add New Location, the route will be automatically be mapped. You only have to put the locations address and optionally description.
Travel Route > Add New Location you can “Add New Location” to the list of locations and view all your locations in Travel Route > List Locations.