Honda accord keeps getting hot?

My 2004 honda accord ex 2.4 keeps getting hot, after around 5 minutes or less when I first start it it starts going up and then like 10 minutes later its all the way on the red line we replaced the thermostat what else could it be? My sister drove it around 140 miles with it on hot almost to the red line could she have messed up the engine? Is there anyway to check it if its worth fixing or getting a new engine? Thanks in advance.

Read more: Honda accord keeps getting hot?