$494 Cheap Flights from Wilmington (ILG) to Philadelphia (PHL)

View $494 flight on Sat, Nov 29, 2025Opens in a new window

Popular airlines from Wilmington, DE (ILG-New Castle) to Philadelphia Intl. Airport (PHL)

Cheap Flights from Wilmington to Philadelphia (ILG-PHL)

Prices were available within the past 7 days and start at $494 for one-way flights and $961 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Tue, Nov 11 - Tue, Nov 18
ILG
Wilmington
PHL
Philadelphia
$961 Roundtrip, found 4 days ago
$961
Roundtrip
found 4 days ago
Select American Airlines flight, departing Tue, Nov 11 from Wilmington to Philadelphia, returning Tue, Nov 18, priced at $961 found 4 days ago
American Airlines
Sat, Nov 8 - Sat, Nov 15
ILG
Wilmington
PHL
Philadelphia
$970 Roundtrip, found 4 days ago
$970
Roundtrip
found 4 days ago
Select American Airlines flight, departing Sat, Nov 8 from Wilmington to Philadelphia, returning Sat, Nov 15, priced at $970 found 4 days ago
American Airlines
Fri, Dec 5 - Sun, Dec 7
ILG
Wilmington
PHL
Philadelphia
$979 Roundtrip, found 1 day ago
$979
Roundtrip
found 1 day ago
Select American Airlines flight, departing Fri, Dec 5 from Wilmington to Philadelphia, returning Sun, Dec 7, priced at $979 found 1 day ago
American Airlines
Wed, Dec 24 - Sat, Jan 3
ILG
Wilmington
PHL
Philadelphia
$988 Roundtrip, found 3 hours ago
$988
Roundtrip
found 3 hours ago
Select American Airlines flight, departing Wed, Dec 24 from Wilmington to Philadelphia, returning Sat, Jan 3, priced at $988 found 3 hours ago
American Airlines
Fri, Jan 9 - Sun, Jan 11
ILG
Wilmington
PHL
Philadelphia
$1,032 Roundtrip, found 1 day ago
$1,032
Roundtrip
found 1 day ago
Select American Airlines flight, departing Fri, Jan 9 from Wilmington to Philadelphia, returning Sun, Jan 11, priced at $1,032 found 1 day ago
American Airlines
Tue, Nov 11 - Tue, Nov 18
ILG
Wilmington
PHL
Philadelphia
$1,054 Roundtrip, found 4 days ago
$1,054
Roundtrip
found 4 days ago
Select American Airlines flight, departing Tue, Nov 11 from Wilmington to Philadelphia, returning Tue, Nov 18, priced at $1,054 found 4 days ago
American Airlines
Tue, Nov 11 - Tue, Nov 18
ILG
Wilmington
PHL
Philadelphia
$1,067 Roundtrip, found 4 days ago
$1,067
Roundtrip
found 4 days ago
Select American Airlines flight, departing Tue, Nov 11 from Wilmington to Philadelphia, returning Tue, Nov 18, priced at $1,067 found 4 days ago
American Airlines
Fri, Dec 5 - Sun, Dec 7
ILG
Wilmington
PHL
Philadelphia
$1,072 Roundtrip, found 1 day ago
$1,072
Roundtrip
found 1 day ago
Select American Airlines flight, departing Fri, Dec 5 from Wilmington to Philadelphia, returning Sun, Dec 7, priced at $1,072 found 1 day ago
American Airlines
Fri, Dec 5 - Sun, Dec 7
ILG
Wilmington
PHL
Philadelphia
$1,085 Roundtrip, found 1 day ago
$1,085
Roundtrip
found 1 day ago
Select American Airlines flight, departing Fri, Dec 5 from Wilmington to Philadelphia, returning Sun, Dec 7, priced at $1,085 found 1 day ago
American Airlines
Sat, Nov 29 - Sun, Nov 30
ILG
Wilmington
PHL
Philadelphia
$1,091 Roundtrip, found 5 days ago
$1,091
Roundtrip
found 5 days ago
Select American Airlines flight, departing Sat, Nov 29 from Wilmington to Philadelphia, returning Sun, Nov 30, priced at $1,091 found 5 days ago
American Airlines
Fri, Jan 9 - Sun, Jan 11
ILG
Wilmington
PHL
Philadelphia
$1,125 Roundtrip, found 1 day ago
$1,125
Roundtrip
found 1 day ago
Select American Airlines flight, departing Fri, Jan 9 from Wilmington to Philadelphia, returning Sun, Jan 11, priced at $1,125 found 1 day ago

Frequently asked questions

How much does a flight from Wilmington, DE (ILG-New Castle) to Philadelphia Intl. Airport (PHL) cost?
Lock in a cheap one-way flight from $494 or cheap return flight from $961 from Wilmington, DE (ILG-New Castle) to Philadelphia Intl. Airport (PHL) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from Wilmington, DE (ILG-New Castle) to Philadelphia Intl. Airport (PHL)?
November is the cheapest month to fly from ILG to PHL. Traveling during an off-peak travel window is often the key to finding better fares.
What is the cheapest airline that flies from Wilmington, DE (ILG-New Castle) to Philadelphia Intl. Airport (PHL)?
Use the filters on Expedia to compare different airlines and find the cheapest carrier that'll fly you from ILG to PHL. Then, sort your results by "Price (lowest to highest)" to snap up a great deal.
How many flights per day from Wilmington, DE (ILG-New Castle) to Philadelphia Intl. Airport (PHL)?
There aren't any daily direct flights from Wilmington, DE (ILG-New Castle) to Philadelphia Intl. Airport (PHL). But you can book flights with layovers. Filter your search results on Expedia to include one or more stops, and you'll be on your way in no time.
What day of the week has the most flights from ILG to PHL?
You'll usually find Tuesday the quietest day for flights, while Fridays tend to be the busiest.* However this can change from season to season and during peak travel times or public holidays.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Wilmington, DE (ILG-New Castle) to Philadelphia Intl. Airport (PHL)?
To avoid potential delays on the Wilmington, DE (ILG-New Castle) to Philadelphia Intl. Airport (PHL) route, travel before 3 PM. Departures after this hour have a 22% higher chance of being 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.
Is it cheaper to buy a plane ticket from Wilmington, DE (ILG-New Castle) to Philadelphia Intl. Airport (PHL) last-minute?
Holding off until just before your trip to book a flight from ILG to PHL generally means paying more. While you may come across some last-minute deals, they aren't always guaranteed. Allow some flexibility in your schedule for a better chance of landing a bargain.
Is it cheaper to book an ILG to PHL flight and hotel package?
You'll generally save money by booking an ILG to PHL flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's easy to manage it all in one convenient place. Once you've selected your ideal accommodations and flights, consider adding extras like activities, car rentals and tours.
Can I cancel or change the date of my flight from Wilmington, DE (ILG-New Castle) to Philadelphia Intl. Airport (PHL)?
If you booked your ILG to PHL flight within the last 24 hours, you may be able to cancel or modify it without fees. Depending on the airline and the type of fare you purchased, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, go to our Customer Service portal if you'd like more information.

Travel information

Origin airport
New Castle
Destination airport
Philadelphia Intl.
Airlines serving
American Airlines
Roundtrip price
$960
Distance
23 mi

Book with confidence

Wilmington to Philadelphia Flights

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

 

The best time to book a flight from Wilmington to Philadelphia

Sunday is one of the best days to book for cheap flights from Wilmington 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 Wilmington 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 Wilmington to Philadelphia in 2025. You can also book with separate airlines for your outbound and return journeys, from $494 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 Wilmington 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 Wilmington 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.

 

Wilmington to Philadelphia Flights

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*Available to One Key members.