Thanks to @quam for suggesting a Shortcut - I had been tinkering with this idea but the trick is, for international destinations you have to feed an Apple Maps URL instead of just the name of the city. But I got it!
@jsnell@quam Cool idea, and seems like it will work for you! I keep wanting to like shortcuts for myself, but every time it seems like I think of the one *I* want...the app I’m thinking of doesn't support them :-(