EXP reserving 4-6 weeks in advance. This year I've been running about 10% on mainline and 90% on Regional. Main is LAX to CLT or DFW. The exception was ONT to DFW (75%) but every flight (4) missed the connection and I was stranded overnight twice. I'm sitting in CLT again after missing my connection - 5 times in 8 flights and 2 of the 3 that had no issues were code share on AS. I left UA 2 years ago because they kept messing up my flights. Everything has been good until the last 2 months and it's just gone in the crapper.