Originally Posted by
catbox9
For clarification, if my goal is to take another r/t to Dublin I could cancel the return and use the ETC to give me half the cost of a new r/t flight to Dublin (assuming my current r/t and the new r/t cost the same....which seems to be close to true)?
No. You can cancel the return and replace it with another DUB-USA flight. You cannot get an ETC and then use it toward the purchase of a new round-trip; that will cause it to re-price and the credit will be just the $100 fare difference between USA-DUB RT and USA-DUB one-way.
Originally Posted by
catbox9
Yes, but the problem is USA-DUB seems to be a really easy flight to upgrade using plus points (and even cheap economy tickets seem to book into W or higher) but the business class redemptions are like 200,000 miles while economy is like 40-50K miles so it seems like really bad value.
Yes, 200K isn't a great value. However, if it is, in fact, really easy to upgrade (not my experience when I was searching, but I readily admit I haven't looked that much), then it may also be really easy to waitlist (and clear) a saver business class award. That should be about 60K miles.