he fled before
1 Kings 20:18-21
18
And he said, Whether they be come out for peace, take them alive; or whether they be come out for war, take them alive.
19
So these young men of the princes of the provinces came out of the city, and the army which followed them.
20
And they slew every one his man: and the Syrians fled; and Israel pursued them: and Benhadad the king of Syria escaped on an horse with the horsemen.
21
And the king of Israel went out, and smote the horses and chariots, and slew the Syrians with a great slaughter.
1 Kings 20:30-21