Cheap flights from Philadelphia to the United States from $37

In general, August is the cheapest month to fly from Philadelphia to United States. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $152. If you aren’t able to travel during the month of August, then book flights to United States from Philadelphia during January instead. Flights to United States in January, while not as cheap as those in August, still average around $164.

According to our data, Saturday is the cheapest day to fly to United States from Philadelphia. The lowest ticket price found for a Saturday departure recently was $387. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. If your travel schedule is flexible, try to avoid departing on a Friday because tickets tend to average around $469. These prices are subject to change though, so be sure to set up a Price Alert for flights to United States.

The cheapest time of day to fly to United States is in the morning when flights can be purchased for as low as $425. Try not to purchase tickets in the evening because they tend to be around $469. Of course, these prices can vary depending on the time of year and what airport you fly to.

Fly from Philadelphia to Miami for the best Philadelphia - United States flight prices

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

No. A direct flight is the cheapest option for a flight between Philadelphia to United States.

Spirit Airlines, Frontier, and United Airlines are the most popular carriers operating from Philadelphia to United States

Frontier, American Airlines and United Airlines are the top three most popular airlines that fly to United States from Philadelphia according to our data. Frontier is the first choice among our users, with 29% of people opting to fly with this airline when traveling to United States. Keep in mind that there are 13 different airlines that fly to United States on a routine basis, so you have a few additional options to choose from.

Historically, on average around 18% of flights between Philadelphia and United States have experienced a delay on any given week. The average delay length over the past 12 months has been 146 minutes.

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

Wednesday is statistically the day of the week which experiences the fewest number of delays on this flight route. Sunday has historically seen more delays on average compared to the rest of the week.

According to our data, American Airlines have had the least number of delays on this route over the last 12 months; with about 18% of their flights experiencing any sort of delay.

As of February 2026, there are 180 flights per day flying from Philadelphia to United States. The most common time of day flights depart is 10:00AM, with 40% of flights taking off at noon.

As of February 2026, there are 1,265 flights per week flying from Philadelphia to United States. The most common day of the week flights depart is Wed, with 17% of flights taking off on this day.