I have a set of 4 award tickets (for my family, I'm not flying), and there was a schedule change of about 1.5 hours.

The website is allowing us to change flights without charge because of this, but it isn't offering the flights I want. I don't /need/ these changes, but I was hoping we'd be able to arrange for an "extended layover" in a hub.

Basically, they have been booked on

AAA-MSP-BBB

And I'd like them to go AAA-SEA-BBB.

AAA-SEA-BBB is a valid routing, and dl.com gives me options for this routing, but it is giving me either two AM flights, or two PM flights. I'd like to fly AM -> SEA (watch mariners game) -> BBB, and would be able to do that if we took the AM flight to SEA, and then a redeye to BBB.

I'm not sure if it's just not offering it to me because it thinks nobody wants an 7 hour layover, or if it's not offering it to me because it's no longer a valid connection?

Thx for advice. I guess I could call, but wanted to have some idea what to expect first.