$295 Cheap Flights from Watertown (ART) to Philadelphia (PHL)

View $295 flight on Tue, Jan 6, 2026Opens in a new window

Popular airlines from Watertown, NY (ART-Watertown Intl.) to Philadelphia Intl. Airport (PHL)

Cheap Flights from Watertown to Philadelphia (ART-PHL)

Prices were available within the past 7 days and start at $295 for one-way flights and $345 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Tue, Jan 6 - Sat, Jan 10
ART
Watertown
PHL
Philadelphia
$345 Roundtrip, found 3 hours ago
$345
Roundtrip
found 3 hours ago
Select American Airlines flight, departing Tue, Jan 6 from Watertown to Philadelphia, returning Sat, Jan 10, priced at $345 found 3 hours ago
American Airlines
Wed, Dec 24 - Mon, Dec 29
ART
Watertown
PHL
Philadelphia
$365 Roundtrip, found 1 day ago
$365
Roundtrip
found 1 day ago
Select American Airlines flight, departing Wed, Dec 24 from Watertown to Philadelphia, returning Mon, Dec 29, priced at $365 found 1 day ago
American Airlines
Fri, Dec 26 - Thu, Jan 1
ART
Watertown
PHL
Philadelphia
$385 Roundtrip, found 5 days ago
$385
Roundtrip
found 5 days ago
Select American Airlines flight, departing Fri, Dec 26 from Watertown to Philadelphia, returning Thu, Jan 1, priced at $385 found 5 days ago
American Airlines
Fri, Apr 10 - Sun, Apr 12
ART
Watertown
PHL
Philadelphia
$405 Roundtrip, found 8 hours ago
$405
Roundtrip
found 8 hours ago
Select American Airlines flight, departing Fri, Apr 10 from Watertown to Philadelphia, returning Sun, Apr 12, priced at $405 found 8 hours ago
American Airlines
Wed, Apr 15 - Thu, Apr 16
ART
Watertown
PHL
Philadelphia
$417 Roundtrip, found 3 days ago
$417
Roundtrip
found 3 days ago
Select American Airlines flight, departing Wed, Apr 15 from Watertown to Philadelphia, returning Thu, Apr 16, priced at $417 found 3 days ago
American Airlines
Tue, Dec 23 - Tue, Jan 6
ART
Watertown
PHL
Philadelphia
$423 Roundtrip, found 14 hours ago
$423
Roundtrip
found 14 hours ago
Select American Airlines flight, departing Tue, Dec 23 from Watertown to Philadelphia, returning Tue, Jan 6, priced at $423 found 14 hours ago
American Airlines
Mon, Mar 2 - Tue, Mar 17
ART
Watertown
PHL
Philadelphia
$425 Roundtrip, found 11 hours ago
$425
Roundtrip
found 11 hours ago
Select American Airlines flight, departing Mon, Mar 2 from Watertown to Philadelphia, returning Tue, Mar 17, priced at $425 found 11 hours ago
American Airlines
Tue, Mar 3 - Sat, Mar 14
ART
Watertown
PHL
Philadelphia
$435 Roundtrip, found 11 hours ago
$435
Roundtrip
found 11 hours ago
Select American Airlines flight, departing Tue, Mar 3 from Watertown to Philadelphia, returning Sat, Mar 14, priced at $435 found 11 hours ago
American Airlines
Wed, Dec 17 - Sat, Dec 27
ART
Watertown
PHL
Philadelphia
$441 Roundtrip, found 1 day ago
$441
Roundtrip
found 1 day ago
Select American Airlines flight, departing Wed, Dec 17 from Watertown to Philadelphia, returning Sat, Dec 27, priced at $441 found 1 day ago
American Airlines
Tue, Dec 23 - Mon, Jan 5
ART
Watertown
PHL
Philadelphia
$443 Roundtrip, found 14 hours ago
$443
Roundtrip
found 14 hours ago
Select American Airlines flight, departing Tue, Dec 23 from Watertown to Philadelphia, returning Mon, Jan 5, priced at $443 found 14 hours ago

Black Friday Sale

Limited-time deals: Save up to 50% on select hotels.
Book now

Find the cheapest month to fly from Watertown (ART) to Philadelphia (PHL)

January is typically the cheapest month to fly

From $314 - $705 per traveler.

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 $457
PHL
Philadelphia Intl.
CheapestClosest
Average driving time to city center17 min
Flights from $457
Flights from Watertown (ART) to Philadelphia (PHL)
Origin airport
Watertown Intl.
Destination airport
Philadelphia Intl.
Airlines serving
American Airlines
Roundtrip price
$345
Distance
287 mi
Average flight time
1 hour 32 mins

Watertown to Philadelphia Flights

The cheapest times to fly from Watertown 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 Watertown to Philadelphia are during the month of January. You can find some of the cheapest flights from Watertown to Philadelphia with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Watertown to Philadelphia

Sunday is one of the best days to book for cheap flights from Watertown 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 Watertown 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 Watertown to Philadelphia in 2026. You can also book with separate airlines for your outbound and return journeys, from $295 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 Watertown 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 Watertown 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 Watertown Intl. Airport (ART) to Philadelphia Intl. Airport (PHL) cost?
Get a cheap one-way flight from $295 or cheap return flight from $345 from Watertown Intl. Airport (ART) to Philadelphia Intl. Airport (PHL) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from Watertown Intl. Airport (ART) to Philadelphia Intl. Airport (PHL)?
The cheapest month to fly from ART to PHL is January, when demand is low. Off-peak months are generally when better flight deals are available between these airports.
Which airlines fly direct from Watertown Intl. Airport (ART) to Philadelphia Intl. Airport (PHL)?
Take a nonstop flight with American Airlines and head straight from Watertown Intl. Airport (ART) to Philadelphia Intl. Airport (PHL).
What is the cheapest airline that flies from Watertown Intl. Airport (ART) to Philadelphia Intl. Airport (PHL)?
Expedia's filter tool lets you easily compare different airlines, flight durations and fares all in one place. Select your preferences, then sort by "Price (lowest to highest)" to see which carrier offers the cheapest ART to PHL flight.
How many flights per day from Watertown Intl. Airport (ART) to Philadelphia Intl. Airport (PHL)?
When jetting out of Watertown Intl. Airport (ART), you'll have your pick from an average of 2 daily direct flights to Philadelphia Intl. Airport (PHL).
What are the most popular departure times for flights from Watertown Intl. Airport (ART) to Philadelphia Intl. Airport (PHL)?
More passengers fly between ART and PHL at 6 AM than at any other time of day. Looking to skip the crowds? Travel outside of rush hours and you're likely to save on your fare as well.
What day of the week has the most flights from ART to PHL?
Saturday has the most flights from Watertown Intl. Airport (ART) to Philadelphia Intl. Airport (PHL). Consider leaving on this day and you'll have a greater chance of finding a departure that fits your plans.
What is the earliest flight from Watertown Intl. Airport (ART) to Philadelphia Intl. Airport (PHL)?
The earliest flight leaving from Watertown Intl. Airport (ART) is at around 6:05AM UTC-5. Board this plane and you'll arrive at Philadelphia Intl. Airport (PHL) at approximately 7:29AM UTC-5. The entire trip takes 1h 24m.
How long does it take to fly from Watertown Intl. Airport (ART) to Philadelphia Intl. Airport (PHL)?
It takes about 1 hour and 26 minutes to travel the 290 mi from ART to PHL.
What airline has the least delays from ART to PHL?
Consider booking with American Airlines if you'd like to go straight from Watertown Intl. Airport (ART) to Philadelphia Intl. Airport (PHL) without any delays. This airline has the best track record for punctuality, with an on-time performance of 90%. Want real-time updates? You can keep an eye on your flight status using the Expedia App.
What is the best time to fly from Watertown Intl. Airport (ART) to Philadelphia Intl. Airport (PHL)?
Opt for a flight from Watertown Intl. Airport (ART) to Philadelphia Intl. Airport (PHL) that leaves before 3 PM to reduce the likelihood of delays and cancellations. Later departures are on average 22% more likely to be canceled.**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 Watertown Intl. Airport (ART)?
Philadelphia Intl. Airport (PHL) is the only airport in Philadelphia with direct flights from Watertown Intl. Airport (ART). Compare the available options and discover cheap fares on Expedia.
Is it cheaper to buy a plane ticket from Watertown Intl. Airport (ART) to Philadelphia Intl. Airport (PHL) last-minute?
Booking your flight from ART to PHL shortly before your trip is typically more expensive. But if there's some wiggle room with your departure dates and times, you could land a cheap last-minute fare.
Is it cheaper to book an ART to PHL flight and hotel package?
Opting for an ART to PHL flight and hotel package tends to be cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Pick from our impressive range of hotels and then add activities, car rentals and flights to your booking. Bundle it all together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Watertown Intl. Airport (ART) to Philadelphia Intl. Airport (PHL)?
It's usually possible to reschedule or cancel your ART to PHL flight. However, if it's been more than 24 hours since booking, additional fees may apply. Check your airline's policies in your itinerary to see what changes are allowed and if any costs are involved. You'll also find more details on our Customer Service portal.

Explore a world of travel with Expedia

*Available to One Key members.