$33 Cheap flights to Philadelphia

Most momondo users would consider April, May, and September to be the best times to fly to Philadelphia to see sights like University of Pennsylvania, Citizens Bank Park, and Reading Terminal Market. Typically, the weather in Philadelphia is under 70 degrees fahrenheit but still warm and the chance of rain is only moderate.

The cheapest month to fly to Philadelphia from United States is in March. Flight prices, which tend to average around $220, are often lower during this time because this is during the off-season. The month of August is another great option to travel to Philadelphia, with average flight prices from United States averaging around $337.

Finding an alternative and possibly cheaper destination airport near Philadelphia is possible. If you are planning a flight to Philadelphia, consider booking flights to Philadelphia Airport (7 mi from Philadelphia city center), Trenton-Mercer Airport (29 mi from Philadelphia city center), Greater Wilmington Airport (31 mi from Philadelphia city center), Atlantic City Airport (46 mi from Philadelphia city center) or Newark Airport (73 mi from Philadelphia city center).

You can find deals at Trenton-Mercer Airport for $145 on average, but that price can change based on your departure airport. To save money, try momondo’s Airport-to-Airport Pricing Tool.

Prices for flights to Philadelphia Airport are updated daily.

As of January 2026, there are 29 operators available to choose from for flights to Philadelphia Airport.

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel to Philadelphia Airport.

The required travel and health documents for your Philadelphia Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Philadelphia Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.