I am not at all familiar with UA's redemption chart. Does he really need 110,000 for an economy class roundtrip?
Shouldn't...a Saver coach award should be 30k each way. That said, I'm looking and only see Standard awards, which are 55k each way.
Sadly, I'm not seeing any options other than purchasing. You could do a standard award for one way and only pay for the other?