Business Class Flight Deals from Denver to Phoenix from $182

When flying from Denver to Phoenix, you can expect significant price fluctuations throughout the year. The most expensive times to fly typically occur in late December, with prices peaking around mid-December, while early spring, specifically from late February to mid-March, also sees high prices. On the other hand, you'll find the lowest fares during the summer months, especially around early July. Overall, the high season prices can soar to around $1,475, while during low seasons, prices can drop to about $172. The transition between low and peak prices is quite abrupt, particularly from late February into March.

For your trip from Denver to Phoenix, the best time to buy is around 164 days before departure when prices are at their lowest, roughly $250. After this period, prices generally rise, with significant increases as you get closer to departure. You should also look for a drop at about 20 days before your trip, where prices can fall to around $320. Be cautious if your departure is within 15 days, as prices will be at their peak and booking now is highly recommended to avoid paying more.