Cheap flights from Portland to Philadelphia from $140

The cheapest month to fly to Philadelphia from Portland is in September. Flight prices, which tend to average around $407, 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 Portland averaging around $417.

The cheapest day to depart from Portland to Philadelphia is on a Tuesday. Travelers who choose to depart for Philadelphia on a Tuesday will often find tickets for as low as $436. On the other hand, Sunday is the most expensive day to depart from Portland because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $571.

According to our data, the cheapest time of day to fly to Philadelphia is in the evening. momondo users have found flights departing from Portland to Philadelphia in the evening for as low as $483. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. In contrast, the most expensive time of day to depart to Philadelphia is in the morning when prices are around $509.

Fly from Portland to Philadelphia for the best Portland - Philadelphia flight prices

You are more likely to see cheaper flights to Philadelphia from Portland when booking weeks ahead of your departure date. In general, you can expect to find flights to Philadelphia for around $469 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Philadelphia from Portland for as low as $417 on momondo.

There are 4 cabin classes available to choose from on Portland to Philadelphia 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 Portland to Philadelphia.

As of October 2026, prices for Portland to Philadelphia flights are approximately 13% more expensive when compared to flights at the same time last year.

Frontier is the most popular carrier operating from Portland to Philadelphia

Alaska Airlines, United Airlines and Delta are the top three most popular airlines that fly to Philadelphia from Portland according to our data. Alaska Airlines is the first choice among our users, with 40% of people opting to fly with this airline when traveling to Philadelphia. Keep in mind that there are 6 different airlines that fly to Philadelphia on a routine basis, so you have a few additional options to choose from.

Chicago (ORD) was the most common stop: 33% of momondo users choosing 1-stop flights on this route connected there.

Flights via Denver (DEN) offer the lowest average round-trip price of $359.

Flights connecting via Denver (DEN) have the shortest average one-way travel time: 7h 05m.

Chicago (ORD) has the shortest average layover time for this route: 1h 10m.

As of October 2026, there are 3 flights per day flying from Portland to Philadelphia. The most common time of day flights depart is 8:00AM, with 100% of flights taking off at noon.

The number of flights available between Portland and Philadelphia is 22 per week as of October 2026. The most frequent departure day is Tue, with 18% of weekly flights leaving on this day.