funguy2,
First of all, while the costs are lower than CO, it's not going to take much effort on CO's part to beat US. We're talking about a few tenths of a cent CASM.
In answer to your three questions:
1. Not through schedule changes alone, but if they're implemented as part of a larger picture, perhaps.
2. Probably. You're exactly right about the RASM/CASM question.
3. I'm not convinced that DL's new fare structure has much to do with US. If it did, they'd have been much more selective in implementation. Having said that, it certainly does have a significant impact on US's RASM opportunity.
First of all, while the costs are lower than CO, it's not going to take much effort on CO's part to beat US. We're talking about a few tenths of a cent CASM.
In answer to your three questions:
1. Not through schedule changes alone, but if they're implemented as part of a larger picture, perhaps.
2. Probably. You're exactly right about the RASM/CASM question.
3. I'm not convinced that DL's new fare structure has much to do with US. If it did, they'd have been much more selective in implementation. Having said that, it certainly does have a significant impact on US's RASM opportunity.