Contradiction with Matthew 8:34
This verse mentions the whole city coming out to meet Jesus, showing a collective fear and request for Him to leave, unlike Luke 8:34 which highlights only the reaction of those who fed the swine.
Matthew 8:34: And, behold, the whole city came out to meet Jesus: and when they saw him, they besought [him] that he would depart out of their coasts.
Contradiction with Mark 5:14
Similar to Luke 8:34, but emphasizes on the spread of the news throughout the city and country, not directly contradicting but focusing on different reactions from the same event.
Mark 5:14: And they that fed the swine fled, and told [it] in the city, and in the country. And they went out to see what it was that was done.