C$543 Cheap Flights from Philadelphia (PHLA) to Lisbon (LIS)

Compare Philadelphia to Lisbon flight deals

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

Book the best Lisbon fare with no extra fees

Flight deals from Philadelphia to Lisbon Airport

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 C$1,142. Find the lowest prices on one-way and return tickets right here.

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 August.

Which airlines fly 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.

Philadelphia to Lisbon: Flight information

The things to know before you go.
Cheapest flight foundC$543
Cheapest month to flyAugust
Average flight time6 hrs, 49 mins
Most popular airlineAmerican Airlines
Average flights per week50

Finding cheap flights from Philadelphia to Lisbon: Frequently asked questions

The best price we found for a return flight from Philadelphia to Lisbon is C$1,076. 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 49 minutes is the average flight time from Philadelphia to Lisbon.
American Airlines, Finnair and Iberia fly direct from Philadelphia to Lisbon.
As of April 2026, there are 50 flights per week flying from Philadelphia to Lisbon.
The cheapest month to fly from Philadelphia to Lisbon is usually April.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Philadelphia to Lisbon Airport on Monday, April 27, 2026.
Yes – the average flight time is 6 hours and 49 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.

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

  • Planning your getaway begins with figuring out where you'll leave from in Philadelphia. Philadelphia International Airport (PHL) is the city's main airport, so check out your options for reserving a flight from Philadelphia to Lisbon Portela Airport (LIS) departing from here.

  • Approximately 6 hours 45 minutes is how long you can expect to be travelling on a direct flight from Philadelphia to Lisbon Portela Airport.

  • Lisbon is 4 hours ahead of Philadelphia. Lisbon Portela Airport is located in Lisbon, which operates on the UTC+0 timezone.

  • The most popular route is from Philadelphia International Airport (PHL) to Lisbon Portela Airport (LIS), with 9 direct services every week. If you'd like to get going as soon as possible, the earliest flight from PHL to LIS is the 18:50 American Airlines option. If you prefer to travel later, the last departure is at 22:35 with American Airlines.

  • Your flight from Philadelphia to LIS won't wait if you're late, so don't forget to check in on time. Arrive up to one hour in advance for domestic flights and two hours ahead for international travel.

  • With more people on the move during busy months like August, get to the terminal earlier than usual. Two hours for domestic flights and up to four for international journeys will allow extra time for delays. Remember things also get busy during major holidays like July Fourth.

Airports in Philadelphia

Philadelphia International Airport (PHL)

  • You can jump on a direct flight from Philadelphia to Lisbon Portela Airport (LIS) out of Philadelphia International Airport (PHL).

  • You can book a direct flight from Philadelphia to Lisbon Portela Airport with American Airlines. This leading airline operates services from PHL.

  • A stopover is the ideal opportunity to break up your trip — and maybe even tour another city. When searching for flights from Philadelphia to LIS departing from Philadelphia International Airport (PHL), deselect the 'Direct flights only' box to see where you can visit along the way. Popular options include:

    • London Heathrow Airport (LHR)

    • Adolfo Suarez Madrid-Barajas Airport (MAD)

    • Logan International Airport (BOS)

  • PHL is approximately 19 kilometres from the centre of Philadelphia. To help you work out how to get there, use Google Maps. This handy travel app will give you the best route and available public transport options.

  • Have an early flight from Philadelphia to Lisbon Portela Airport? Avoid the hassle of rushing to the terminal (and get some extra shut-eye) by picking one of these stays close to Philadelphia International Airport:

About Lisbon Portela Airport (LIS)

Getting from Lisbon Portela Airport (LIS) to central Lisbon

  • Lisbon Portela Airport is approximately 10 kilometres from the centre of Lisbon. With a car rental or if you're catching a cab, the drive is around 22 minutes.

  • Travelling to the centre by public transport typically takes 59 minutes.

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

  • The best price we've found for a one-way ticket from Philadelphia to Lisbon Portela Airport is C$543. The cheapest price for a return flight is C$1,076. Keep in mind fares can change due to availability at the time of booking.

  • Book 9 months before you want to travel. After crunching the numbers on our calendar, this is how far you'll want to book ahead to secure flight tickets from Philadelphia to LIS.

  • Schedule your trip for June. That's the cheapest month for tickets from Philadelphia to Lisbon Portela Airport. If you're flexible with your dates, use the 'Whole month' tool to find the lowest price across every month.

  • Locking in a cheap ticket from Philadelphia to LIS is a piece of cake with Price Alerts. All you need to do is create one of these automatic alerts and we'll let you know when the price has fallen.

  • Use the filters to tailor your flights from Philadelphia to Lisbon Portela Airport. Pick your preferred departure and arrival times, airlines and number of stops. You can also sort your results by 'Cheapest' to find the best deals.

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

  • February is the quietest time to fly to Lisbon. Alternatively, join the crowds and go in June. This is the busiest month for flights from Philadelphia to Lisbon Portela Airport, but the best time to go is up to you.

  • The warmest month in Lisbon is August, with the temperature ranging between 16ºC and 29ºC. Lock in your flights from Philadelphia to LIS in this month if this is the type of weather you enjoy.

  • Search for cheap flights from Philadelphia to Lisbon Portela Airport in January if you like cooler conditions. Temperatures are at their lowest around then, ranging between 8ºC and 16ºC on average.

More about Lisbon

Complete your Lisbon trip with a car rental

  • Finding you a cheap flight from Philadelphia to Lisbon Portela Airport isn't our only cool trick. Browse our car rentals in Lisbon and see the sights your way. We search for deals from trusted car rental providers and put them all in one place. Instantly compare rates and then book with no fees.

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