The cut on Kate's ear appears to have healed in 3 hours.
According to on-screen time it takes 6-8 minutes between when Kate spots her sister and when she walks over to the hanger to investigate - this seems kinda odd.
When Kim is about to leave Lonnie's place, he gives her a small revolver to scare away cougars with, but the gun is clearly not loaded.
After the plane carrying the dummy bomb is stopped and the injured pilot is being questioned, the terrorist pilot does not speak. Jack Bauer calls on his phone, "This is Jack Bauer. I'm requesting a translator at Hanger 21." He then repeats that order. Jack never mentions what language needs translating. The "24" writers may not have wanted to name that language.