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Cheap flights from Philadelphia to Lisbon

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Flight deals from Philadelphia to Lisbon

Looking for a cheap last-minute deal or the best return flight from Philadelphia to Lisbon Airport? If you want to travel next month, return fares start from P72,133. Find the lowest prices on one-way and return tickets right here.
Lisbon.P21,749 per passenger.Departing Wed, 14 Oct.One-way flight with British Airways.Outbound indirect flight with British Airways, departs from Philadelphia International on Wed, 14 Oct, arriving in Lisbon.Price includes taxes and charges.From P21,749, select.
Lisbon.P21,749 per passenger.Departing Wed, 18 Nov.One-way flight with British Airways.Outbound indirect flight with British Airways, departs from Philadelphia International on Wed, 18 Nov, arriving in Lisbon.Price includes taxes and charges.From P21,749, select.
Lisbon.P21,903 per passenger.Departing Wed, 18 Nov.One-way flight with British Airways.Outbound direct flight with British Airways departs from Philadelphia International on Wed, 18 Nov, arriving in Lisbon.Price includes taxes and charges.From P21,903, select.
Lisbon.P22,889 per passenger.Departing Wed, 14 Oct.One-way flight with British Airways.Outbound direct flight with British Airways departs from Philadelphia International on Wed, 14 Oct, arriving in Lisbon.Price includes taxes and charges.From P22,889, select.
Lisbon.P25,138 per passenger.Departing Sat, 30 Jan.One-way flight with Finnair.Outbound indirect flight with Finnair, departs from Philadelphia International on Sat, 30 Jan, arriving in Lisbon.Price includes taxes and charges.From P25,138, select.
Lisbon.P25,961 per passenger.Departing Sat, 30 Jan.One-way flight with Iberia.Outbound direct flight with Iberia departs from Philadelphia International on Sat, 30 Jan, arriving in Lisbon.Price includes taxes and charges.From P25,961, select.
Lisbon.P28,420 per passenger.Departing Mon, 21 Sep.One-way flight with Aer Lingus.Outbound indirect flight with Aer Lingus, departs from Philadelphia International on Mon, 21 Sep, arriving in Lisbon.Price includes taxes and charges.From P28,420, select.
Lisbon.P31,410 per passenger.Departing Tue, 18 Aug.One-way flight with TAP Air Portugal.Outbound indirect flight with TAP Air Portugal, departs from Philadelphia International on Tue, 18 Aug, arriving in Lisbon.Price includes taxes and charges.From P31,410, select.
Lisbon.P31,744 per passenger.Departing Tue, 1 Dec.One-way flight with British Airways.Outbound indirect flight with British Airways, departs from Philadelphia International on Tue, 1 Dec, arriving in Lisbon.Price includes taxes and charges.From P31,744, select.
Lisbon.P32,120 per passenger.Departing Fri, 18 Sep.One-way flight with British Airways.Outbound direct flight with British Airways departs from Philadelphia International on Fri, 18 Sep, arriving in Lisbon.Price includes taxes and charges.From P32,120, select.
Lisbon.P33,665 per passenger.Departing Mon, 1 Mar.One-way flight with British Airways.Outbound indirect flight with British Airways, departs from Philadelphia International on Mon, 1 Mar, arriving in Lisbon.Price includes taxes and charges.From P33,665, select.
Lisbon.P34,614 per passenger.Departing Tue, 28 Jul.One-way flight with jetBlue.Outbound indirect flight with jetBlue, departs from Philadelphia International on Tue, 28 Jul, arriving in Lisbon.Price includes taxes and charges.From P34,614, select.
Lisbon.P35,893 per passenger.Departing Tue, 1 Dec.One-way flight with Finnair.Outbound direct flight with Finnair departs from Philadelphia International on Tue, 1 Dec, arriving in Lisbon.Price includes taxes and charges.From P35,893, select.
Lisbon.P36,728 per passenger.Departing Thu, 15 Apr.One-way flight with British Airways.Outbound indirect flight with British Airways, departs from Philadelphia International on Thu, 15 Apr, arriving in Lisbon.Price includes taxes and charges.From P36,728, select.
Lisbon.P40,434 per passenger.Departing Sun, 24 May.One-way flight with TAP Air Portugal.Outbound indirect flight with TAP Air Portugal, departs from Philadelphia International on Sun, 24 May, arriving in Lisbon.Price includes taxes and charges.From P40,434, select.
Lisbon.P40,434 per passenger.Departing Mon, 8 Jun.One-way flight with TAP Air Portugal.Outbound indirect flight with TAP Air Portugal, departs from Philadelphia International on Mon, 8 Jun, arriving in Lisbon.Price includes taxes and charges.From P40,434, select.

Find the cheapest month to fly from Philadelphia to Lisbon

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Philadelphia to Lisbon flights are currently cheapest in October.
May
from P40,434
Jun
from P40,434
Jul
from P34,614
Aug
from P31,410
Sep
from P28,420
Oct
from P21,749
Nov
from P21,749
Dec
from P31,744
Jan
from P25,138
Feb
Find prices
Mar
from P33,665
Apr
from P36,728

Direct flights from Philadelphia to Lisbon

Philadelphia to Lisbon: Alternative routes

Compare routes from Philadelphia to Lisbon below. You may find an airport to fly into that's cheaper, faster, or easier than Lisbon.

Lisbon

8km from central Lisbon
ClosestCheapest
from P21,749
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Cascais Municipal Aerodrome

19km from central Lisbon
Search flights

Philadelphia to Lisbon: Flight information

The things to know before you go.
Cheapest flight foundP21,749
Cheapest month to flyOctober
Average flight time6 hrs, 47 mins
Most popular airlineAmerican Airlines
Average flights per week34

Finding cheap flights from Philadelphia to Lisbon: Frequently asked questions

The best price we found for a return flight from Philadelphia to Lisbon is P44,008. 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.
6 hours and 47 minutes is the average flight time from Philadelphia to Lisbon.
American Airlines, Finnair and Iberia fly direct from Philadelphia to Lisbon.
As of May 2026, there are 34 flights per week flying from Philadelphia to Lisbon.
The cheapest month to fly from Philadelphia to Lisbon is usually August.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Philadelphia to Lisbon Airport on Wednesday, 12 August 2026.
Yes – the average flight time is 6 hours and 47 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 Lisbon 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 Lisbon is around 40 days in advance, so don’t leave your flight to the last minute.

Travelling from Philadelphia to Lisbon Humberto Delgado Airport (LIS): What you need to know

  • Planning your holiday starts with working out where you'll leave from in Philadelphia. Philadelphia International Airport (PHL) is the city's main base, so check out your options for booking a flight from Philadelphia to Lisbon Humberto Delgado Airport (LIS) out of here.

  • 6 hours 45 minutes is the average duration of a direct Philadelphia to Lisbon Humberto Delgado Airport flight.

  • Lisbon Humberto Delgado Airport is located in Lisbon. The city operates on the UTC+0 timezone and is five hours ahead of Philadelphia.

  • The most popular route is from Philadelphia International Airport (PHL) to Lisbon Humberto Delgado Airport (LIS). Take your pick of 7 direct services every week. American Airlines operates a 7pm departure between PHL and LIS.

  • Your flight from Philadelphia to LIS won't wait if you're running late, so get to the airport with time to spare. Arrive up to one hour in advance for domestic flights and two hours ahead when you're flying internationally.

  • July is a busy travel month. If you're taking off then or during a major holiday like Christmas, show up even earlier. Aim for at least two hours ahead for domestic flights and as much as four hours for international journeys.

Airports in Philadelphia

Philadelphia International Airport (PHL)

  • Enjoy an uninterrupted journey from Philadelphia International Airport (PHL). Nonstop flights from Philadelphia to Lisbon Humberto Delgado Airport (LIS) are available from here.

  • American Airlines is a well-known airline that operates direct flights from Philadelphia to Lisbon Humberto Delgado Airport taking off from PHL.

  • Most travellers prefer to fly with American Airlines from PHL to LIS.

  • American Airlines leads the way in punctuality. A dependable 83.05% of its services on this route complete the journey on schedule.

  • We make it simple to book cheap flights from Philadelphia to LIS that include a stopover. To explore your options departing from Philadelphia International Airport (PHL), uncheck 'Direct flights only.' Next, pick a flight that has a stop long enough to tour your chosen city. Some popular stopovers between PHL and LIS include:

    • London Heathrow Airport (LHR)

    • Adolfo Suarez Madrid-Barajas Airport (MAD)

    • Boston Logan International Airport (BOS)

  • Located around 18 kilometers from the centre of Philadelphia, PHL can be reached in about 20 minutes by car, depending on traffic. The journey by public transport is roughly 30 minutes.

  • Booked an early flight from Philadelphia to Lisbon Humberto Delgado Airport? Avoid the mad dash to the terminal (and catch some extra z's) by picking one of these stays close to Philadelphia International Airport:

  • Of all flights departing from Philadelphia International Airport, 77% touch down on time at their destination.

  • The address for PHL is 8500 Essington Ave.

Trenton-Mercer Airport (TTN)

  • TTN is about 48 kilometers from central Philadelphia. It'll take 40 minutes or so to get to the airport driving from the city centre. Public transport takes approximately 1 hour 35 minutes.

  • Kick off your holiday early with an additional night away from home. Before catching your Philadelphia to LIS flight, stay in one of these hotels near Trenton-Mercer Airport:

  • Trenton-Mercer Airport has an on-time performance of 76%. This figure sheds light on how often flights that take off from this airport arrive at their destination on time.

  • TTN is located at Scotch Road, Terminal Building.

About Lisbon Humberto Delgado Airport (LIS)

  • If you have a late flight from Philadelphia to Lisbon Humberto Delgado Airport, nothing tops the convenience of staying close to the terminal. Grab your luggage from the carousel and then be showered and relaxing soon after at one of these options near LIS:

  • Get the best deal by booking your ride around two weeks ahead of your Philadelphia to Lisbon Humberto Delgado Airport flight.

Getting from Lisbon Humberto Delgado Airport (LIS) to central Lisbon

  • Lisbon Humberto Delgado Airport to central Lisbon is roughly 6 kilometers. If you're renting a car or taking a taxi, plan in advance to make your trip as smooth as possible. Journey times may vary based on traffic conditions and the time of day.

  • If you're taking public transport, expect a journey time of roughly 25 minutes.

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

  • The lowest price we've found for a one-way ticket from Philadelphia to Lisbon Humberto Delgado Airport is P21,749. For a return flight on this route, the best price is P44,008. Depending on how early you book and the availability, these fares may change.

  • Book one month before you travel. Pricing trends suggest that this is the ideal window for finding cheap flights from Philadelphia to LIS.

  • The best month for finding cheap Philadelphia to Lisbon Humberto Delgado Airport tickets is June. Use the 'Whole month' tool to compare prices, then choose the dates with the lowest fares.

  • There's no need to search every day to find out if fares have dropped when you set up a Price Alert. We'll let you know as soon as a new deal shows up on plane tickets from Philadelphia to LIS.

  • Hunt down a great price on a flight from Philadelphia to Lisbon Humberto Delgado Airport with the help of the filters. Pick your preferred arrival and departure times, airlines and number of stops. You can also sort your results by 'Best,' 'Cheapest' or 'Fastest.'

The best time to fly from Philadelphia to Lisbon Humberto Delgado Airport (LIS)

  • January is the quietest month for flights from Philadelphia to Lisbon Humberto Delgado Airport (LIS), while August is the busiest. Work out the best time to visit Lisbon based on whether you like a bustling atmosphere or a more laid-back vibe.

  • Book a Philadelphia to LIS plane ticket departing in August if you're eager to experience the city during its warmest month. Expect temperatures in Lisbon to range from 16ºC (61ºF) to 29ºC (84ºF).

  • If you like cooler conditions, search for a cheap ticket from Philadelphia to Lisbon Humberto Delgado Airport in January when temperatures are between 8ºC (46ºF) and 16ºC (61ºF).

More about Lisbon

  • Once you've booked your flight from Philadelphia to Lisbon Humberto Delgado Airport, find a hotel that offers the right mix of comfort and location. Make one of these options your base for exploring Lisbon:

  • There are so many things to do and see in this city, it can be hard to figure out where to begin. Pasteis de Belém, belém and Real Mosteiro de Santa Maria de Belém are popular attractions which should feature on every Lisbon itinerary.

Explore more of Portugal

  • Lisbon is easy to fall in love with, but there are so many other corners of Portugal just waiting to be discovered. Around 274 kilometers north of Lisbon, a trip to Porto will keep your itinerary busy. Start with attractions like Ribeira District, Rio Douro and Livraria Lello.

  • If there's time to check out another corner of Portugal, consider Coimbra, about 177 kilometers north of Lisbon. Biblioteca Joanina, Old Cathedral of Coimbra (Se Velha de Coimbra) and Paço das Escolas are among the biggest draws.

Plan the rest of your trip from Philadelphia to Lisbon

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