$623 Cheap Flights from Philadelphia (PHL) to Skiathos (JSI)

View $623 flight on Thu, Oct 2, 2025Opens in a new window

Popular airlines from Philadelphia Intl. Airport (PHL) to Skiathos (JSI-Skiathos Island National)

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Cheap Flights from Philadelphia to Skiathos (PHL-JSI)

Prices were available within the past 7 days and start at $623 for one-way flights and $703 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

United
Mon, Sep 29 - Tue, Oct 14
PHL
Philadelphia
JSI
Skiathos
$703 Roundtrip, found 5 days ago
$703
Roundtrip
found 5 days ago
Select United flight, departing Mon, Sep 29 from Philadelphia to Skiathos, returning Tue, Oct 14, priced at $703 found 5 days ago
Lufthansa
Thu, Oct 2 - Tue, Oct 14
PHL
Philadelphia
JSI
Skiathos
$763 Roundtrip, found 5 days ago
$763
Roundtrip
found 5 days ago
Select Lufthansa flight, departing Thu, Oct 2 from Philadelphia to Skiathos, returning Tue, Oct 14, priced at $763 found 5 days ago
Lufthansa
Thu, Oct 2 - Tue, Oct 14
PHL
Philadelphia
JSI
Skiathos
$782 Roundtrip, found 5 days ago
$782
Roundtrip
found 5 days ago
Select Lufthansa flight, departing Thu, Oct 2 from Philadelphia to Skiathos, returning Tue, Oct 14, priced at $782 found 5 days ago
United
Mon, Sep 29 - Tue, Oct 7
PHL
Philadelphia
JSI
Skiathos
$903 Roundtrip, found 5 days ago
$903
Roundtrip
found 5 days ago
Select United flight, departing Mon, Sep 29 from Philadelphia to Skiathos, returning Tue, Oct 7, priced at $903 found 5 days ago
United
Thu, Oct 2 - Tue, Oct 7
PHL
Philadelphia
JSI
Skiathos
$963 Roundtrip, found 5 days ago
$963
Roundtrip
found 5 days ago
Select United flight, departing Thu, Oct 2 from Philadelphia to Skiathos, returning Tue, Oct 7, priced at $963 found 5 days ago
United
Mon, Sep 29 - Fri, Oct 17
PHL
Philadelphia
JSI
Skiathos
$1,013 Roundtrip, found 5 days ago
$1,013
Roundtrip
found 5 days ago
Select United flight, departing Mon, Sep 29 from Philadelphia to Skiathos, returning Fri, Oct 17, priced at $1,013 found 5 days ago
British Airways
Tue, Aug 19 - Sun, Aug 24
PHL
Philadelphia
JSI
Skiathos
$1,016 Roundtrip, found 4 hours ago
$1,016
Roundtrip
found 4 hours ago
Select British Airways flight, departing Tue, Aug 19 from Philadelphia to Skiathos, returning Sun, Aug 24, priced at $1,016 found 4 hours ago
United
Thu, Oct 2 - Fri, Oct 17
PHL
Philadelphia
JSI
Skiathos
$1,073 Roundtrip, found 5 days ago
$1,073
Roundtrip
found 5 days ago
Select United flight, departing Thu, Oct 2 from Philadelphia to Skiathos, returning Fri, Oct 17, priced at $1,073 found 5 days ago
Air Canada
Sun, Nov 2 - Fri, Nov 21
PHL
Philadelphia
JSI
Skiathos
$1,102 Roundtrip, found 5 days ago
$1,102
Roundtrip
found 5 days ago
Select Air Canada flight, departing Sun, Nov 2 from Philadelphia to Skiathos, returning Fri, Nov 21, priced at $1,102 found 5 days ago
Swiss International Air Lines
Wed, Aug 20 - Tue, Aug 26
PHL
Philadelphia
JSI
Skiathos
$1,121 Roundtrip, found 4 hours ago
$1,121
Roundtrip
found 4 hours ago
Select Swiss International Air Lines flight, departing Wed, Aug 20 from Philadelphia to Skiathos, returning Tue, Aug 26, priced at $1,121 found 4 hours ago

Alternative airports near Skiathos

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

Select flight to Skiathos Island National JSI. Cheapest and Closest option available. Average driving time to city center is 4 minutes. Flights from $1,016
JSI
Skiathos Island National
CheapestClosest
Average driving time to city center4 min
Flights from $1,016
Flights from Philadelphia (PHL) to Skiathos (JSI)
Origin airport
Philadelphia Intl.
Destination airport
Skiathos Island National
Airlines serving
British Airways
Roundtrip price
$703
Distance
4951 mi

Philadelphia to Skiathos Flights

The cheapest times to fly from Philadelphia to Skiathos

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 Philadelphia to Skiathos are during the month of September. You can find some of the cheapest flights from Philadelphia to Skiathos with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Philadelphia to Skiathos

Sunday is one of the best days to book for cheap flights from Philadelphia to Skiathos: 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 Philadelphia to Skiathos

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 Philadelphia to Skiathos in 2025. You can also book with separate airlines for your outbound and return journeys, from $623 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 Philadelphia to Skiathos 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 Philadelphia to Skiathos 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 Philadelphia Intl. Airport (PHL) to Skiathos Island National Airport (JSI) cost?
Snag a cheap one-way flight from $623 or cheap return flight from $703 from Philadelphia Intl. Airport (PHL) to Skiathos Island National Airport (JSI) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from Philadelphia Intl. Airport (PHL) to Skiathos Island National Airport (JSI)?
The cheapest month to fly from PHL to JSI is September, when demand is low. Off-peak season is often when airlines offer lower prices between these airports.
What is the cheapest airline that flies from Philadelphia Intl. Airport (PHL) to Skiathos Island National Airport (JSI)?
To find the cheapest airline that'll fly you from PHL to JSI, use Expedia's filter tool. Customize your search based on your travel style, such as preferred carriers and flight duration. You can then sort your results by "Price (lowest to highest)" to see the cheapest flights first.
How many flights per day from Philadelphia Intl. Airport (PHL) to Skiathos Island National Airport (JSI)?
Nonstop flights from Philadelphia Intl. Airport (PHL) to Skiathos Island National Airport (JSI) aren't available daily, so you'll need to take a flight with a layover. Explore your options with Expedia's filters. Enter your dates and choose either "1 Stop" or "2+ Stops."
What day of the week has the most flights from PHL to JSI?
You'll usually find Tuesday the quietest day for flights, while Fridays tend to be the busiest.* However this can vary from season to season and during public holidays or peak travel times.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Philadelphia Intl. Airport (PHL) to Skiathos Island National Airport (JSI)?
To touch down at Skiathos Island National Airport (JSI) without delays, choose a flight that takes off from Philadelphia Intl. Airport (PHL) 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.
Is it cheaper to buy a plane ticket from Philadelphia Intl. Airport (PHL) to Skiathos Island National Airport (JSI) last-minute?
Holding off until just before your departure to book a ticket from PHL to JSI often results in higher prices. While you may come across some last-minute discounts, there's no guarantee. Keep your travel schedule open for a better chance of snagging a bargain.
Is it cheaper to book a PHL to JSI flight and hotel package?
Compared with arranging hotels and flights separately, booking a PHL to JSI flight and hotel package with Expedia could result in significant savings. Better yet, managing everything in one place will take the stress out of planning your trip. Just secure your flights and choose from our extensive range of stays, then tailor your trip with other add-ons like tours, activities and car rentals.
Can I cancel or change the date of my flight from Philadelphia Intl. Airport (PHL) to Skiathos Island National Airport (JSI)?
In most cases, you're able to cancel or reschedule your PHL to JSI flight. However, there may be additional fees, especially if you made your booking over 24 hours ago. Double-check your itinerary for the airline's policies and fees on flight changes, or if you need further information, head to our Customer Service portal.

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*Available to One Key members.