Fly from RDU to DEN: Your Comprehensive Guide to Raleigh to Denver Airfare

First, hydration is absolutely essential when traveling to Denver; the high altitude can cause dehydration and altitude sickness, so start drinking plenty of water while still at RDU and continue throughout your flight. Second, if you are flying on a budget carrier like Frontier, be sure to pre-book your carry-on or checked bags online before arriving at the airport to avoid significantly higher fees at the gate. Third, for the best views of the Rocky Mountains upon arrival, try to secure a window seat on the left side of the aircraft when approaching Denver from the east. Finally, consider utilizing the RTD A-Line commuter train once you land at DEN; it is a cost-effective and reliable way to reach Union Station in downtown Denver in about 37 minutes, bypassing potential highway traffic on I-70 and the E-470 toll road.

Airfare for the RDU to DEN route tends to fluctuate significantly based on seasonal demand and local events. The most expensive times to fly are typically during the peak winter ski season from late December through March and the height of summer in July and August when outdoor tourism is at its peak. To find the lowest fares, look for mid-week flights in the shoulder seasons of late April to May or September to October, when the weather is pleasant but the crowds are thinner.