Originally Posted by
jiburi
Seem my SFO-EWR segment Friday is over 70% full. Do I go to the gate agent for re-route request or is that something I can do myself online 24 hours prior? (Of course, without paying a fee or change in fare)
Jiburi
From the UA website:
Every flight is different. For regularly scheduled flights that are expected to be fairly full, we’ll let you change your flight with no change fee or receive a travel credit for your trip. We'll do our best to contact you about 24 hours before your departure time so you can decide before you arrive at the airport.
You shouldn't have to pay a change fee either way, though it doesn't mention anything about fare differences.