Cheap Flights from Lisbon to Philadelphia

Compare Lisbon to Philadelphia flight deals

Find the cheapest month or even day of the year to fly to Philadelphia

Book the best Philadelphia fare with no extra fees

Flight deals from Lisbon to Philadelphia

Looking for a cheap last-minute deal or the best return flight from Lisbon Airport to Philadelphia? If you want to travel next month, return fares start from ج.م.‏ 42,650. Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Lisbon to Philadelphia

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Lisbon to Philadelphia flights are currently cheapest in June.

Direct flights from Lisbon to Philadelphia

Lisbon to Philadelphia: Flight information

The things to know before you go.
Cheapest flight foundج.م.‏ 20,530
Cheapest month to flyJune
Average flight time8 hrs, 5 mins
Most popular airlineAmerican Airlines
Average flights per week33

Finding cheap flights from Lisbon 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 Lisbon to Philadelphia is ج.م.‏ 39,763. 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.
8 hours and 5 minutes is the average flight time from Lisbon to Philadelphia.
American Airlines, Finnair and Iberia fly direct from Lisbon to Philadelphia.
As of June 2026, there are 33 flights per week flying from Lisbon to Philadelphia.
The cheapest month to fly from Lisbon to Philadelphia is usually October.
If you're flying from Lisbon 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 ج.م.‏ 39,763.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Lisbon Airport to Philadelphia on Thursday, 1 October 2026.
Yes – the average flight time is 8 hours and 5 minutes.
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 June, the average temperature is usually around 21°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, TAP Air Portugal and British Airways offer the cheapest flight tickets to Philadelphia.

Flying from Lisbon Humberto Delgado Airport (LIS) to Philadelphia: what you need to know

  • Hop on a direct flight from Lisbon Humberto Delgado Airport to Philadelphia and you'll be in the air for around 6 hours 45 minutes.

  • The timezone in Philadelphia is UTC-5. The city is five hours behind Lisbon, where Lisbon Humberto Delgado Airport is located.

  • With seven weekly flights between the two airports, Lisbon Humberto Delgado Airport (LIS) to Philadelphia International Airport (PHL) is the most popular route. Catch American Airlines's 08:55 flight to get your trip from LIS to PHL underway.

  • Give yourself plenty of time to catch your LIS to Philadelphia flight. It's generally best to arrive two hours before international departures and an hour ahead for domestic flights.

  • You can expect longer queues in popular months such as August. Arriving up to four hours ahead of international flights and two hours for domestic departures is a good idea.

  • Start your journey at LIS and fly nonstop to Philadelphia International Airport (PHL). That's where you can expect to touch down when searching for Lisbon Humberto Delgado Airport to Philadelphia tickets.

  • Be on the lookout for deals with American Airlines. This airline has direct flights from Lisbon Humberto Delgado Airport to Philadelphia.

  • Stopovers are the perfect opportunity to break up your journey and possibly even explore a different city. When searching for plane tickets from LIS to Philadelphia, uncheck the 'Direct flights only' box to see where you can visit along the way. Some popular options include:

    • Adolfo Suarez Madrid-Barajas Airport (MAD)

    • Boston Logan International Airport (BOS)

    • Washington Dulles International Airport (IAD)

  • LIS is around 6 kilometres from central Lisbon. If you're catching a taxi, driving or ride-sharing from the centre, it'll take 20 minutes or so to get there, depending on the traffic. If you're planning to take public transport, expect the travel time to be around 25 minutes.

  • In search of a hotel close to LIS? If you're catching an early flight from Lisbon Humberto Delgado Airport to Philadelphia, these accommodation options set you up for a seamless send-off:

  • When it comes to Lisbon Humberto Delgado Airport's on-time performance, 56% of flights stick to their scheduled arrival time.

How to find the cheapest flights from Lisbon Humberto Delgado Airport (LIS) to Philadelphia

  • ج.م.‏ 20,530 is currently the best price for a one-way Lisbon Humberto Delgado Airport to Philadelphia flight. Return plane tickets start at ج.م.‏ 39,763. These prices can change depending on demand and availability.

  • Booking in advance is often the key to finding a cheap flight from LIS to Philadelphia. Prices tend to rise as demand increases, so the nearer you get to departure, the more it could cost you.

  • The 'Whole month' tool will show you the cheapest tickets from Lisbon Humberto Delgado Airport to Philadelphia throughout the entire month. It's a great way to find a bargain if your plans aren't set in stone.

  • There's no need to check in daily to find out if fares have dropped when you set up a Price Alert. We'll update you the moment there's an extra saving on cheap flights from LIS to Philadelphia.

  • Find an affordable flight from Lisbon Humberto Delgado Airport to Philadelphia with the help of our filters. Select your preferred times, number of stops and airlines, then sort the results by 'Cheapest' for the best deals.

Airports in Philadelphia

Philadelphia International Airport (PHL)

  • Philadelphia International Airport (PHL) is around 18 kilometres from the centre of Philadelphia. If you're opting for a ride-share or a taxi, the drive takes about 20 minutes.

  • It typically takes 30 minutes when travelling by public transport.

  • The last thing you need is a long journey to your hotel if you're getting in late on a flight from Lisbon Humberto Delgado Airport to Philadelphia. Book one of these accommodation options near PHL instead:

  • To secure the lowest price, book your ride from Philadelphia International Airport about three weeks in advance of your flight from LIS to Philadelphia.

  • The street address for PHL is 8500 Essington Ave.

Trenton-Mercer Airport (TTN)

  • Trenton-Mercer Airport (TTN) is around 48 kilometres from central Philadelphia. After your flight from Lisbon Humberto Delgado Airport to Philadelphia, it'll take you around 40 minutes to get to the heart of the city in a taxi or ride-share.

  • You can expect the trip to take about 1 hour 35 minutes on public transport.

  • You'll find some comfortable places ready to welcome you near TTN. Unwind and get cosy after your LIS to Philadelphia flight at any of these well-located options:

  • Avoid paying more than you need to. Securing your ride four weeks before your arrival at TTN will save you money.

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

Best time to go to Philadelphia

  • December is the quietest month for flights from Lisbon Humberto Delgado Airport to Philadelphia, while July is the busiest. Pick the best time to visit Philadelphia based on whether you like a lively atmosphere or a more laid-back vibe.

  • When booking your Lisbon Humberto Delgado Airport to Philadelphia plane ticket, think about the kind of weather you prefer. July is the warmest month in Philadelphia, with temperatures ranging from 18ºC to 32ºC.

  • January sees average temperatures of between -7ºC and 9ºC. Search for a cheap ticket from LIS to Philadelphia around that time if you want to travel when it's cooler.

More about Philadelphia

Explore more of the United States

  • New York is just one of the many cities in the United States waiting to be explored once you've taken in the sights of Philadelphia. Around 129 kilometres away to the northeast, its top attractions include Central Park, Statue of Liberty and Metropolitan Museum of Art.

  • Boston is another sought-after destination in the United States and is around 434 kilometres northeast of Philadelphia. No trip is complete without visiting Museum of Fine Arts Boston, Freedom Trail and USS Constitution Museum.

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