American Airlines flights from Denver to Philadelphia (DEN - PHL)

• Can I get a flight from Denver to Philadelphia on American Airlines for under $300?

  American Airlines offers 9 flights from Denver to Philadelphia for under $300. Prices vary by date and time. To see all prices and select your dates, click here.

• How do most travelers feel about American Airlines?

  The average rating from 4,123 American Airlines reviews by Cheapflights users is 6.2 (out of a maximum rating of 10). If you are considering flying DEN-PHL with Cheapflights, apply your desired dates to the form above to see our best pricing for your trip to Philadelphia with American Airlines.

Currently, the most affordable month to book a American Airlines flight from Denver to Philadelphia in October, with an average price of $225. Conversely, traveling with American Airlines from Denver to Philadelphia in June will be the most expensive, with an average cost of $318. Various factors influence flight prices, so comparing airlines, departure airports, and times can help reduce costs.

If weather is an important factor for your trip to Philadelphia, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 78.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 33.8 F).