Cheap flights from Philadelphia to Denver from R1 964

The cheapest month to fly to Denver from Philadelphia is in January. Flight prices, which tend to average around R5 096, are often lower during this time because this is during the off-season. If you don’t want to visit Denver in January, then you should wait until February to fly from Philadelphia, when ticket prices are also cheap, with an average price of R5 242.

You are more likely to see cheaper flights to Denver from Philadelphia when booking weeks ahead of your departure date. In general, you can expect to find flights to Denver for around R6 113 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Denver from Philadelphia for as low as R5 112 on momondo.

Historically, on average around 19% of flights between Philadelphia and Denver have experienced a delay on any given week. The average delay length over the past 12 months has been 159 minutes.

Generally, flights departing at night tend to experience fewer delays. Flights departing in the evening have, in the past, seen delays more frequently in comparison.

Tuesday is statistically the day of the week that experiences the fewest delays on this flight route. Thursday has historically seen more delays on average compared to the rest of the week.

According to our data, United Airlines have had the fewest delays on this route over the last 12 months, with about 13% of their flights experiencing any sort of delay.

As of September 2026, there are 14 flights per day flying from Philadelphia to Denver. The most common time of day flights depart is 20:00, with 39% of flights taking off at midday.

As of September 2026, 99 flights take off from Philadelphia and land in Denver each week. The most common flight departure day for this route is Mon, with 16% of weekly flights taking off on this day.