The best month to fly between Phnom Penh and Bangkok is July and the most expensive month to fly is January. (Average prices, based on 1578 datapoints.)
The best day to arrive at Phnom Penh is Tuesday and it would be best to avoid Saturday, as prices are on average 73.12% higher than on Tuesday. (Average prices, based on 1578 datapoints.)
The best time to fly is at around 18. (Average prices, based on 2642 datapoints.)