Cheap flights from Lisbon to Philadelphia International

Compare Lisbon to Philadelphia International flight deals

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

Book the best Philadelphia International fare with no extra fees

Flight deals from Lisbon Airport to Philadelphia International Airport

Looking for a cheap last-minute deal or the best return flight from Lisbon Airport to Philadelphia International Airport? If you want to travel next month, return fares start from $770. Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Lisbon to Philadelphia International

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

Direct flights from Lisbon to Philadelphia International

Lisbon to Philadelphia: Flight information

The things to know before you go.
Cheapest flight found$568
Cheapest month to flyApril
Average flight time7 hrs, 55 mins
Most popular airlineAmerican Airlines
Average flights per week50

Finding cheap flights from Lisbon to Philadelphia International: Frequently asked questions

The best price we found for a return flight from Lisbon to Philadelphia International is $770. 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.
7 hours and 55 minutes is the average flight time from Lisbon to Philadelphia International.
American Airlines, Iberia and Finnair fly direct from Lisbon to Philadelphia International.
As of March 2026, there are 50 flights per week flying from Lisbon to Philadelphia International.
The cheapest month to fly from Lisbon to Philadelphia International is usually April.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Lisbon Airport to Philadelphia International Airport on Sunday, 19 April 2026.
Yes – the average flight time is 7 hours and 55 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 International 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.
Currently, Aer Lingus and Iberia offer the cheapest flight tickets to Philadelphia International.

Travelling from Lisbon Portela Airport (LIS) to Philadelphia International Airport (PHL): what you need to know

  • Philadelphia's timezone is UTC-4, making Philadelphia four hours behind Lisbon.

  • To ensure you catch your LIS to PHL flight, leave plenty of time for things like check-in and baggage drop. Turning up two hours before international departures and one hour before domestic flights is the general rule.

  • You'll likely experience longer lines during popular months like June. Arriving up to four hours in advance for international flights and two hours for domestic departures is a smart move.

  • Getting to Philadelphia (and then seeing more of United States!) is a breeze with American Airlines. This popular carrier has direct flights from Lisbon Portela Airport to Philadelphia International Airport.

  • Most travellers choose to fly with American Airlines on this route.

  • American Airlines is the most punctual carrier that operates LIS to PHL flights. A dependable 88.33% of its departures on this route land as scheduled.

  • If you'd like to split up your journey, just uncheck 'Direct flights only' when searching for your ticket from Lisbon Portela Airport to Philadelphia International Airport. These are the top stopovers between LIS and PHL:

    • Adolfo Suarez Madrid-Barajas Airport

    • Washington Dulles International Airport

    • Logan International Airport

How to find the cheapest flights from Lisbon Portela Airport (LIS) to Philadelphia International Airport (PHL)

  • Currently, $568 is the cheapest price we've seen for a one-way Lisbon Portela Airport to Philadelphia International Airport flight. The best price for a return plane ticket is $770. Remember that fares could change due to demand at the time of booking.

  • To pick up cheap tickets from LIS to PHL, book as early as you can. Airlines generally offer the most competitive fares when flights are first released.

  • If you can be flexible with your travel plans, use the 'Whole month' tool. It'll give you the lowest price across each month when looking for a flight from Lisbon Portela Airport to Philadelphia International Airport.

  • You don't need to check every day to find out if fares have gone down when you set up a Price Alert. We'll notify you the moment the price changes on cheap flights from LIS to PHL.

  • Secure the ideal flight for you with the help of the filters. To see the 'Best,' 'Cheapest' or 'Fastest' flights from Lisbon Portela Airport to Philadelphia International Airport, use the 'Sort by' function. You can also filter results by departure and arrival times, airline, and journey duration.

Handy information about Lisbon Portela Airport (LIS)

  • 64.1% of flights that take off from Lisbon Portela Airport touch down at their destination on time.

  • Central Lisbon to Lisbon Portela Airport is around 10 kilometres. Depending on traffic, it'll take about 20 minutes to get there if you're ride-sharing, catching a cab or driving.

  • Expect a journey time of about 1 hour on public transport.

  • Get your break off to a relaxed start by staying near LIS. Whether you have an early flight from Lisbon Portela Airport to Philadelphia International Airport or want to avoid feeling rushed, these stays are the answer:

Arriving at Philadelphia International Airport (PHL)

Getting from Philadelphia International Airport (PHL) to central Philadelphia

  • The address for PHL is Industrial Highway and Island Road.

  • From Philadelphia International Airport, Philadelphia is approximately 19 kilometres away. It takes around 15 minutes to get to the centre driving.

  • Getting there on public transport will take you roughly 45 minutes.

When to fly to Philadelphia International Airport (PHL)

  • The quietest month for a flight from Lisbon Portela Airport to Philadelphia International Airport is February, while August is the most popular. Pick the best time to visit Philadelphia based on whether you prefer a more fast-paced or easygoing experience.

  • When booking your flight from Lisbon Portela Airport to Philadelphia International Airport, think about the type of weather you like. July is the warmest month in Philadelphia, with temperatures ranging from 18ºC (64ºF) to 32ºC (90ºF).

  • Look for cheap tickets from LIS to PHL in January if you like travelling in cooler conditions. Temperatures are at their lowest around then, ranging between -7ºC (19ºF) and 9ºC (48ºF) on average.

Explore more of United States

  • Philadelphia has its own special appeal, but there are so many other corners of United States waiting to be discovered. Around 129 kilometres north-east of Philadelphia, a trip to New York will keep your itinerary busy. Check out popular attractions like Statue of Liberty, Central Park and Empire State Building.

  • Around 434 kilometres north-east of Philadelphia, Boston is another favourite stop in United States. Get a taste of what this destination has to offer at Freedom Trail, Museum of Fine Arts Boston and Boston Tea Party Ships & Museum.

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