This chart illustrates trends of sleeping room prices for both our group prices and the best online individual traveler prices we could find at the time the group/meeting offer was submitted. The best group discount displayed is 60.3% in the month of May 2014 and the highest average individual rate is $299 in the month of December 2016. This chart will show past seasonality and also project future months. If you are flexible with dates, you may want to consider staying at Portland Marriott City Center in a month when rates are lower.