I’m new to this forum, please feel free to move to another thread if needed. I have booked a UA award ticket from IAH to Dubrovnik in a few weeks. I’m flying business on LH 441 to FRA and then O 208/733 via Vienna to Dubrovnik.

I’ve looked at the fares again and noticed a one stop option to Dubrovnik for the same amount of miles by flying Eurowings out of Frankfurt. I was wondering if there are any tips to get my schedule changed? Should I called United to get it changed?

Can Lufthansa rebook me on the day of travel?