This doesn't sound right... I'm flying to Hanover, DE (ABQ-ORD-MUC-HAJ) for a week and back (HAJ-MUC-DEN-ABQ). It was assumed that we'd be in Hanover at the end of the business tour but will be in Stuttgart instead. It makes sense to me for our party of three to rent a car one-way from Stuttgart to MUC (a two-hour drive) instead of trying to get back to Hanover so I called to cancel the HAJ-MUC leg of the trip and was told by United Airlines that it would cost $300pp and that we would forfeit the remaining flights home if we simply missed the flight.
I've never had to do this before and what I was told makes no sense to me at all so I thought I'd reach out and get some input from the flying community. Here I was hoping I'd get a small credit for being a responsible passenger and canceling a flight leg more than a week out but was shocked to hear it would actually cost me $300!