Best is to say I have to get something in that city, so I MUST pass through that place.
Reminds me of a joke I heard. (actually, I just made it up...)
EWR-ORD-LAS, 6/21/2020
"I really needed to stop off in Chicago."
"What for?"
"To get a laptop at Best Buy."
"Are there no Best Buys in Las Vegas?"
"There are. But there are no riots in Las Vegas."