If you want a cheap flight from Los Angeles to Dallas, you've got one airlines to choose from.
You can use the filters on your search to see more flights and find cheaper rates – Dallas has more than one airport. So if you don't need to fly into Dallas/Fort Worth International Airport, it's worth checking your other options. The 1984 km flight usually takes about 8 hrs 5 mins.
You can expect accommodation prices to be higher at this time of year too. Last-minute deals do crop up, but it's best to book everything in advance to avoid disappointment.