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

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

  Cheapflights users have found 15 United Airlines flights for under $300 on the DEN-PHL route. Prices on flights to Philadelphia from Denver can vary based on many factors including dates. To look at price based on your preferred dates, click here.

• How do most travelers feel about United Airlines?

  The average rating from 4,132 United Airlines reviews by Cheapflights users is 6.3 (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 United Airlines.

Currently, the most affordable month to book a United Airlines flight from Denver to Philadelphia in October, with an average price of $225. Conversely, traveling with United 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).