Grenoble-Isère Airport

And because the mileage is greater, transfer rates are naturally a bit higher than from Geneva.

And you've also got Grenoble Airport sitting about 185 kilometers away.

That's another heavily charter-focused option on weekends, but flight choices are fairly limited during the week.

So when you weigh up the reliability, the flight schedules, and the pricing, Geneva remains the undisputed champion for reaching the Belleville Valley.