Originally Posted by
ermis177
You will be able to purchase an upgrade at the airport of even at the gate but the price will be quite expensive. Regarding online options i am afraid i do not know.
Did some poking around and learned that the fixed-price online offers (through LH.com) appear on 016 tickets, but only when the flight numbers are LH. I ended up with a ticket that’s half LH numbers and half UA numbers after asking UA to switch the outbound codes, and only then did offers appear for my outbound.
By the way, are the offers I’m seeing now (~25 days out) likely to remain stable until departure, or does LH do dynamic upgrade pricing?