Cheap flights from Colorado to Pennsylvania from $93

The month of January is, on average, the cheapest month to fly to Pennsylvania from Colorado, with most prices found around $63. If you don’t want to visit Pennsylvania in January, then you should wait until October to fly from Colorado, when ticket prices are also cheap, with an average price of $414.

The cheapest day to depart on your flight to Pennsylvania is on a Thursday when prices can be found for as low as $356. This is often the case because there is less demand to fly during this day of the week. If your travel schedule is flexible, try to avoid departing on a Monday because tickets tend to average around $496. These prices are subject to change though, so be sure to set up a Price Alert for flights to Pennsylvania.

Our most recent data shows that the best time of day to fly to Pennsylvania is in the evening. Flights from Colorado to Pennsylvania during this time can be as low as $266. In contrast, the most expensive time of day to depart to Pennsylvania is at noon when prices are around $470.

Fly from Denver Intl to Allentown-Bethlehem for the best Colorado - Pennsylvania flight prices

You are more likely to see cheaper flights to Pennsylvania from Colorado when booking weeks ahead of your departure date. In general, you can expect to find flights to Pennsylvania for around $328 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Pennsylvania from Colorado for as low as $283 on momondo.

There are 4 cabin classes available to choose from on Colorado to Pennsylvania flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Frontier, Allegiant Air, and American Airlines are the most popular carriers operating from Colorado to Pennsylvania

United Airlines, American Airlines and Frontier are the top three most popular airlines that fly to Pennsylvania from Colorado according to our data. United Airlines is the first choice among our users, with 30% of people opting to fly with this airline when traveling to Pennsylvania. Keep in mind that there are 7 different airlines that fly to Pennsylvania on a routine basis, so you have a few additional options to choose from.

As of June 2026, 82 flights take off from Colorado and land in Pennsylvania each day. The most common flight departure time for this route is 5:00PM, with 38% of daily flights taking off in the afternoon.

578 flights are operational weekly from Colorado to Pennsylvania as of June 2026. The most popular departure day for this route is Fri, with 19% of flights per week taking off on this day.