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Cheap flight tickets from Porto to Philadelphia

Compare Porto to Philadelphia flight deals

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Flight deals from Porto Airport to Philadelphia

Looking for a cheap last-minute deal or the best return flight from Porto Airport to Philadelphia? If you want to travel next month, return fares start from RM3,245. Find the lowest prices on one-way and return tickets right here.
Philadelphia.RM3,243 per passenger.Departing Fri, 25 Sep, returning Fri, 16 Oct.Return flight with Iberia and British Airways.Outbound indirect flight with Iberia, departs from Porto on Fri, 25 Sep, arriving in Philadelphia International.Inbound indirect flight with British Airways, departs from Philadelphia International on Fri, 16 Oct, arriving in Porto.Price includes taxes and charges.From RM3,243, select.
Philadelphia.RM3,243 per passenger.Departing Wed, 29 Apr, returning Tue, 26 May.Return flight with Iberia and British Airways.Outbound indirect flight with Iberia, departs from Porto on Wed, 29 Apr, arriving in Philadelphia International.Inbound indirect flight with British Airways, departs from Philadelphia International on Tue, 26 May, arriving in Porto.Price includes taxes and charges.From RM3,243, select.
Philadelphia.RM3,245 per passenger.Departing Thu, 2 Apr, returning Tue, 7 Apr.Return flight with Lufthansa.Outbound indirect flight with Lufthansa, departs from Porto on Thu, 2 Apr, arriving in Philadelphia International.Inbound indirect flight with Lufthansa, departs from Philadelphia International on Tue, 7 Apr, arriving in Porto.Price includes taxes and charges.From RM3,245, select.
Philadelphia.RM3,247 per passenger.Departing Thu, 26 Mar, returning Tue, 31 Mar.Return flight with Lufthansa.Outbound indirect flight with Lufthansa, departs from Porto on Thu, 26 Mar, arriving in Philadelphia International.Inbound indirect flight with Lufthansa, departs from Philadelphia International on Tue, 31 Mar, arriving in Porto.Price includes taxes and charges.From RM3,247, select.
Philadelphia.RM3,276 per passenger.Departing Sat, 2 May, returning Sun, 17 May.Return flight with Lufthansa.Outbound indirect flight with Lufthansa, departs from Porto on Sat, 2 May, arriving in Philadelphia International.Inbound indirect flight with Lufthansa, departs from Philadelphia International on Sun, 17 May, arriving in Porto.Price includes taxes and charges.From RM3,276, select.
Philadelphia.RM3,327 per passenger.Departing Tue, 16 Jun, returning Fri, 28 Aug.Return flight with Lufthansa.Outbound indirect flight with Lufthansa, departs from Porto on Tue, 16 Jun, arriving in Philadelphia International.Inbound indirect flight with Lufthansa, departs from Philadelphia International on Fri, 28 Aug, arriving in Porto.Price includes taxes and charges.From RM3,327, select.
Philadelphia.RM3,785 per passenger.Departing Fri, 12 Jun, returning Tue, 7 Jul.Return flight with British Airways.Outbound indirect flight with British Airways, departs from Porto on Fri, 12 Jun, arriving in Philadelphia International.Inbound indirect flight with British Airways, departs from Philadelphia International on Tue, 7 Jul, arriving in Porto.Price includes taxes and charges.From RM3,785, select.
Philadelphia.RM4,878 per passenger.Departing Fri, 14 Aug, returning Tue, 18 Aug.Return flight with British Airways.Outbound indirect flight with British Airways, departs from Porto on Fri, 14 Aug, arriving in Philadelphia International.Inbound indirect flight with British Airways, departs from Philadelphia International on Tue, 18 Aug, arriving in Porto.Price includes taxes and charges.From RM4,878, select.
Philadelphia.RM5,861 per passenger.Departing Mon, 1 Jun, returning Mon, 1 Jun.Return flight with Delta.Outbound indirect flight with Delta, departs from Porto on Mon, 1 Jun, arriving in Philadelphia International.Inbound indirect flight with Delta, departs from Philadelphia International on Mon, 1 Jun, arriving in Porto.Price includes taxes and charges.From RM5,861, select.

Find the cheapest month to fly from Porto to Philadelphia

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Porto to Philadelphia flights are currently cheapest in April.
Mar
from RM3,247
Apr
from RM3,245
May
from RM3,276
Jun
from RM5,861
Jul
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Aug
from RM4,878
Sep
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Oct
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Nov
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Dec
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Jan
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Feb
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Alternative Porto to Philadelphia routes

Looking for the cheapest, fastest or easiest route from Porto to Philadelphia? You could fly into the following airports instead.

Philadelphia International

11km from central Philadelphia
ClosestCheapest
from RM3,243
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Blue Bell

22km from central Philadelphia
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Philadelphia Trenton-Mercer

47km from central Philadelphia
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Greater Wilmington

49km from central Philadelphia
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Atlantic City International

75km from central Philadelphia
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Allentown

81km from central Philadelphia
from RM9,815
Search flights

Porto to Philadelphia: Flight information

The things to know before you go.
Cheapest flight foundRM3,243
Cheapest month to flyApril

Finding cheap flights from Porto to Philadelphia: Frequently asked questions

There are 6 airports in Philadelphia: Philadelphia International, Blue Bell, Philadelphia Trenton-Mercer, Greater Wilmington, Atlantic City International, and Allentown.
The best price we found for a return flight from Porto to Philadelphia is RM3,243. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from Porto to Philadelphia. But we found flights with one or more stops from RM3,243.
As of March 2026, there are no flights flying from Porto to Philadelphia.
The cheapest month to fly from Porto to Philadelphia is usually April.
If you're flying from Porto Airport, the cheapest airport near Philadelphia is Philadelphia International – which is 11.2 km away from the centre of Philadelphia. We've found flights into this airport from RM3,243.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Porto Airport to Philadelphia on Wednesday, 29 April 2026.
No airlines currently offer direct flights between Porto Airport and Philadelphia. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Philadelphia but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Philadelphia is around 40 days in advance, so don’t leave your flight to the last minute.
In March, the average temperature is usually around 4°C. July is typically the warmest month in Philadelphia, when it usually averages around 30°C. You can expect the least rain in February. The coldest month is January, with temperatures averaging -5°C. The rainiest month is July.
Currently, Iberia offers the cheapest flight tickets to Philadelphia.

Travelling from Porto Airport (OPO) to Philadelphia: what you need to know

  • Porto Airport is located in Porto. Based in the UTC-4 timezone, Philadelphia is four hours behind Porto.

  • Allow plenty of time to catch your OPO to Philadelphia flight. As a general rule, arrive two hours before international departures and an hour ahead for domestic flights.

  • If you're heading away during a major holiday or another peak period, allow extra time. A good general rule is two hours ahead of domestic flights and up to four hours before international departures. Check-in and security lines will be longer.

  • We make it a breeze to book flight tickets from OPO to Philadelphia with a stopover. To see your options, uncheck 'Direct flights only.' Then, select a flight that has a stop long enough to explore your chosen city. Some popular stopovers include:

    • Adolfo Suarez Madrid-Barajas Airport (MAD)

    • Newark Liberty International Airport (EWR)

    • Pearson International Airport (YYZ)

  • OPO is around 11 kilometres from central Porto. If you're ride-sharing, catching a cab or driving from the centre, it'll take you 20 minutes or so to get there, depending on traffic conditions. If you're taking public transport, expect the trip time to be around 50 minutes.

  • Planning to catch an early flight from Porto Airport to Philadelphia? Avoid rushing to the airport (and enjoy a little extra shut-eye) by choosing one of these stays close to OPO:

  • When it comes to Porto Airport's on-time performance, data shows 74.49% of flights complete their journey on time.

How to find the cheapest flights from Porto Airport (OPO) to Philadelphia

  • RM1,946 is currently the lowest price for a one-way Porto Airport to Philadelphia flight. A return flight ticket starts at RM3,243. These fares can change depending on demand.

  • Booking ahead of time is often the key to locking in a cheap flight from OPO to Philadelphia. Fares tend to rise as seats fill up, so the closer you get to departure, the more expensive your ticket may be.

  • If you're flexible with your trip dates, take advantage of the 'Whole month' search tool. It'll show you the lowest price across each month when searching for a Porto Airport to Philadelphia ticket.

  • You don't need to keep checking in to see if fares have dropped when you set up a Price Alert. We'll notify you as soon as there's an extra saving on cheap flights from OPO to Philadelphia.

  • Select your ideal arrival and departure times, airlines and number of stops with our filters. Then, sort the results for your flight from Porto Airport to Philadelphia by 'Cheapest,' 'Fastest' or 'Best.'

Airports in Philadelphia

Philadelphia International Airport (PHL)

  • The distance from Philadelphia International Airport (PHL) to central Philadelphia is roughly 19 kilometres. It takes about 15 minutes to get to the centre driving.

  • If you're taking public transport, expect a journey time of about 45 minutes.

  • The last thing you want is a lengthy journey to your hotel if you're getting in late on a flight from Porto Airport to Philadelphia. Check in to one of these accommodation options near PHL instead:

  • Grab a Philadelphia International Airport rental car and explore Philadelphia and beyond with your own set of wheels. Dollar, Thrifty and Budget are well-known companies you can book with here.

  • Secure the lowest price by booking your ride from Philadelphia International Airport around three weeks before your flight from OPO to Philadelphia.

  • PHL is located at 8500 Essington Ave.

Trenton-Mercer Airport (TTN)

  • Central Philadelphia is about 56 kilometres from Trenton-Mercer Airport (TTN). Once your flight from Porto Airport to Philadelphia has touched down and you've made your way to arrivals, the drive should take about 40 minutes.

  • If you choose to travel on public transport, the ride to the centre will take you 1 hour 45 minutes or so.

  • Place the 'Do not disturb' sign on your door and rest at a hotel close to TTN. Here are a few options where you can check in after your OPO to Philadelphia flight:

  • The fastest way to reach your destination is with a Trenton-Mercer Airport rental car. Grab a set of wheels from Budget, National or Enterprise and make a speedy getaway.

  • Snap up the best price by securing your ride from TTN four weeks ahead of time. You'll also have access to a wider range of vehicles.

  • The address for Trenton-Mercer Airport is Scotch Road, Terminal Building.

Best time to go to Philadelphia

  • Before securing your flights from Porto Airport to Philadelphia, consider which time of year is best for you. Peak season in Philadelphia offers a lively atmosphere and plenty of things to do, while low season means you'll get better hotel deals and smaller crowds.

  • When booking your Porto Airport to Philadelphia flight ticket, think about the kind of weather you prefer. July is the warmest month in Philadelphia, with temperatures ranging from 18ºC (64ºF) to 32ºC (90ºF).

  • If you want to travel in cooler conditions, search for a cheap ticket from OPO to Philadelphia in January when temperatures average between -7ºC (19ºF) and 9ºC (48ºF).

More about Philadelphia

Explore more of United States

  • New York is just one of the many cities in United States waiting to be discovered once you've seen the sights of Philadelphia. Around 129 kilometres away to the north-east, popular attractions include Statue of Liberty, Central Park and Empire State Building.

  • Boston is another must-experience destination in United States and is around 434 kilometres north-east of Philadelphia. No trip is complete without dropping by Freedom Trail, Museum of Fine Arts Boston and Boston Tea Party Ships & Museum.

Plan the rest of your trip from Porto to Philadelphia

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.