$619 Cheap Flights from Lisbon (LIS) to Philadelphia (PHL)

View $619 flight on Tue, Dec 9, 2025Opens in a new window

Popular airlines from Humberto Delgado Airport (LIS) to Philadelphia Intl. Airport (PHL)

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Cheap Flights from Lisbon to Philadelphia (LIS-PHL)

Prices were available within the past 7 days and start at $619 for one-way flights and $548 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Aer Lingus
Fri, Sep 12 - Fri, Sep 19
LIS
Lisbon
PHL
Philadelphia
$548 Roundtrip, found 2 days ago
$548
Roundtrip
found 2 days ago
Select Aer Lingus flight, departing Fri, Sep 12 from Lisbon to Philadelphia, returning Fri, Sep 19, priced at $548 found 2 days ago
Aer Lingus
Tue, Sep 9 - Sat, Sep 13
LIS
Lisbon
PHL
Philadelphia
$553 Roundtrip, found 3 days ago
$553
Roundtrip
found 3 days ago
Select Aer Lingus flight, departing Tue, Sep 9 from Lisbon to Philadelphia, returning Sat, Sep 13, priced at $553 found 3 days ago
American Airlines
Wed, Oct 15 - Wed, Oct 29
LIS
Lisbon
PHL
Philadelphia
$724 Roundtrip, found 3 hours ago
$724
Roundtrip
found 3 hours ago
Select American Airlines flight, departing Wed, Oct 15 from Lisbon to Philadelphia, returning Wed, Oct 29, priced at $724 found 3 hours ago
British Airways
Sat, Nov 8 - Sun, Nov 30
LIS
Lisbon
PHL
Philadelphia
$725 Roundtrip, found 2 hours ago
$725
Roundtrip
found 2 hours ago
Select British Airways flight, departing Sat, Nov 8 from Lisbon to Philadelphia, returning Sun, Nov 30, priced at $725 found 2 hours ago
Iberia
Wed, Oct 15 - Wed, Oct 29
LIS
Lisbon
PHL
Philadelphia
$735 Roundtrip, found 3 hours ago
$735
Roundtrip
found 3 hours ago
Select Iberia flight, departing Wed, Oct 15 from Lisbon to Philadelphia, returning Wed, Oct 29, priced at $735 found 3 hours ago
American Airlines
Sat, Nov 8 - Sun, Nov 30
LIS
Lisbon
PHL
Philadelphia
$737 Roundtrip, found 2 hours ago
$737
Roundtrip
found 2 hours ago
Select American Airlines flight, departing Sat, Nov 8 from Lisbon to Philadelphia, returning Sun, Nov 30, priced at $737 found 2 hours ago
Lufthansa
Sat, Nov 8 - Sat, Nov 29
LIS
Lisbon
PHL
Philadelphia
$761 Roundtrip, found 9 hours ago
$761
Roundtrip
found 9 hours ago
Select Lufthansa flight, departing Sat, Nov 8 from Lisbon to Philadelphia, returning Sat, Nov 29, priced at $761 found 9 hours ago
United
Mon, Sep 29 - Tue, Sep 30
LIS
Lisbon
PHL
Philadelphia
$781 Roundtrip, found 3 days ago
$781
Roundtrip
found 3 days ago
Select United flight, departing Mon, Sep 29 from Lisbon to Philadelphia, returning Tue, Sep 30, priced at $781 found 3 days ago
Air Canada
Wed, Oct 15 - Wed, Oct 29
LIS
Lisbon
PHL
Philadelphia
$782 Roundtrip, found 3 hours ago
$782
Roundtrip
found 3 hours ago
Select Air Canada flight, departing Wed, Oct 15 from Lisbon to Philadelphia, returning Wed, Oct 29, priced at $782 found 3 hours ago
TAP Portugal
Wed, Oct 15 - Wed, Oct 29
LIS
Lisbon
PHL
Philadelphia
$795 Roundtrip, found 3 hours ago
$795
Roundtrip
found 3 hours ago
Select TAP Portugal flight, departing Wed, Oct 15 from Lisbon to Philadelphia, returning Wed, Oct 29, priced at $795 found 3 hours ago

Find the cheapest month to fly from Lisbon (LIS) to Philadelphia (PHL)

June is typically the cheapest month to fly

From $560 - $1,331 per traveler.

Graph displaying average flight prices per month

Alternative airports near Philadelphia

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Philadelphia Intl. PHL. Cheapest and Closest option available. Average driving time to city center is 17 minutes. Flights from $1,200
PHL
Philadelphia Intl.
CheapestClosest
Average driving time to city center17 min
Flights from $1,200
Flights from Lisbon (LIS) to Philadelphia (PHL)
Origin airport
Humberto Delgado
Destination airport
Philadelphia Intl.
Airlines serving
Aer Lingus, Air Canada, Air France, American Airlines, British Airways, Brussels Airlines, Delta, Finnair, Iberia, Icelandair, JetBlue Airways, KLM, Lufthansa, Scandinavian Airlines, Swiss International Air Lines, TAP Portugal, United, Virgin Atlantic
Roundtrip price
$547
Distance
3449 mi
Average flight time
7 hours 40 mins

Lisbon to Philadelphia Flights

The cheapest times to fly from Lisbon to Philadelphia

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Lisbon to Philadelphia are during the month of September. You can find some of the cheapest flights from Lisbon to Philadelphia with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Lisbon to Philadelphia

Sunday is one of the best days to book for cheap flights from Lisbon to Philadelphia: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Lisbon to Philadelphia

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Lisbon to Philadelphia in 2025. You can also book with separate airlines for your outbound and return journeys, from $619 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Lisbon to Philadelphia flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Lisbon to Philadelphia airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Humberto Delgado Airport (LIS) to Philadelphia Intl. Airport (PHL) cost?
You can find affordable return tickets from Humberto Delgado Airport (LIS) to Philadelphia Intl. Airport (PHL) starting from $746. Book a seat and take off on your trip. This information is based on the cheapest price found on Expedia for this return journey departing within the next three months. This airfare is for a Iberia flight leaving LIS on July 28 2025 and touching down at PHL. The price was last updated on July 23 2025 and has not changed since.
What is the cheapest month to fly from LIS to PHL?
The cheapest flights from LIS to PHL are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
Which airlines fly direct from Humberto Delgado Airport (LIS) to Philadelphia Intl. Airport (PHL)?
You can fly nonstop from Humberto Delgado Airport (LIS) to Philadelphia Intl. Airport (PHL) on an American Airlines flight.
What is the cheapest airline that flies from LIS to PHL?
With tickets starting at $683 for a one-way journey from LIS to PHL, American Airlines is currently the cheapest airline for this route. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from LIS on October 7 2025. Prices were last updated on July 23 2025 and have not changed since.
How many flights per day from Humberto Delgado Airport (LIS) to Philadelphia Intl. Airport (PHL)?
On average, you can choose from 2 direct flights each week from Humberto Delgado Airport (LIS) to Philadelphia Intl. Airport (PHL). To broaden your travel options, consider taking a flight with a layover. Just enter your dates on Expedia and then set the filter tool to include one stop or more.
What are the most popular departure times for flights from Humberto Delgado Airport (LIS) to Philadelphia Intl. Airport (PHL)?
More passengers fly between LIS and PHL at 10 AM than at any other time. Rather go when it's quieter? Try choosing a quieter departure window and you're likely to save on your fare as well.
What day of the week has the most flights from LIS to PHL?
If you fly on a Friday, you'll get the biggest range of choices for flights from Humberto Delgado Airport (LIS) to Philadelphia Intl. Airport (PHL).
What is the earliest flight from Humberto Delgado Airport (LIS) to Philadelphia Intl. Airport (PHL)?
Humberto Delgado Airport (LIS)'s earliest flight to Philadelphia Intl. Airport (PHL) departs at approximately 10:55AM UTC+0. With a travel duration of 8h 5m, you'll land at around 2:00PM UTC-5.
How long does it take to fly from Humberto Delgado Airport (LIS) to Philadelphia Intl. Airport (PHL)?
It takes about 8 hours and 2 minutes to cover the 3,500 mi from LIS to PHL.
What airline has the least delays from LIS to PHL?
Consider traveling with Finnair if you'd like to fly straight from Humberto Delgado Airport (LIS) to Philadelphia Intl. Airport (PHL) without any holdups. This carrier has the best track record for punctuality, with an on-time score of 92%. Want to be notified if anything changes? You can check your flight status using the Expedia App.
What is the best time to fly from Humberto Delgado Airport (LIS) to Philadelphia Intl. Airport (PHL)?
To reach Philadelphia Intl. Airport (PHL) on time, pick a flight that leaves Humberto Delgado Airport (LIS) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this hour.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports do you fly into for Philadelphia from Humberto Delgado Airport (LIS)?
If you're traveling on a direct flight from Humberto Delgado Airport (LIS) to Philadelphia, Philadelphia Intl. Airport (PHL) is the only airport you can touch down at.
Is it cheaper to buy a plane ticket from Humberto Delgado Airport (LIS) to Philadelphia Intl. Airport (PHL) last-minute?
Waiting until right before your break to book a ticket from LIS to PHL often results in higher prices. While you may find some last-minute offers, they're not always guaranteed. Allow some flexibility in your schedule to maximize your chances of snagging a bargain.
Is it cheaper to book a LIS to PHL flight and hotel package?
Compared with arranging hotels and flights separately, booking a LIS to PHL flight and hotel package with Expedia could lead to significant savings. What's more, having everything in one place will take the stress out of travel planning. Just pick your flights and select from our extensive range of stays, then tailor your trip with other add-ons like car rentals and activities.
Can I cancel or change the date of my flight from Humberto Delgado Airport (LIS) to Philadelphia Intl. Airport (PHL)?
Usually, it's possible to reschedule or cancel your LIS to PHL flight. However, if it's been more than 24 hours since booking, additional fees may apply. Refer to your airline's policies in your itinerary to see what changes are allowed and if any costs are involved. You'll also find more information on our Customer Service portal.

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