$462 Cheap Flights from Wilmington (ILG) to Philadelphia (PHL)

View $462 flight on Tue, Jul 8, 2025Opens in a new window

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

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Cheap Flights from Wilmington to Philadelphia (ILG-PHL)

Prices were available within the past 7 days and start at $462 for one-way flights and $924 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Fri, Aug 29 - Sun, Aug 31
ILG
Wilmington
PHL
Philadelphia
$924 Roundtrip, found 2 hours ago
$924
Roundtrip
found 2 hours ago
Select American Airlines flight, departing Fri, Aug 29 from Wilmington to Philadelphia, returning Sun, Aug 31, priced at $924 found 2 hours ago
American Airlines
Tue, Jul 15 - Fri, Jul 25
ILG
Wilmington
PHL
Philadelphia
$933 Roundtrip, found 8 hours ago
$933
Roundtrip
found 8 hours ago
Select American Airlines flight, departing Tue, Jul 15 from Wilmington to Philadelphia, returning Fri, Jul 25, priced at $933 found 8 hours ago
American Airlines
Sun, Oct 19 - Thu, Oct 23
ILG
Wilmington
PHL
Philadelphia
$970 Roundtrip, found 2 days ago
$970
Roundtrip
found 2 days ago
Select American Airlines flight, departing Sun, Oct 19 from Wilmington to Philadelphia, returning Thu, Oct 23, priced at $970 found 2 days ago
American Airlines
Fri, Aug 29 - Sun, Aug 31
ILG
Wilmington
PHL
Philadelphia
$1,017 Roundtrip, found 2 hours ago
$1,017
Roundtrip
found 2 hours ago
Select American Airlines flight, departing Fri, Aug 29 from Wilmington to Philadelphia, returning Sun, Aug 31, priced at $1,017 found 2 hours ago
American Airlines
Fri, Aug 29 - Sun, Aug 31
ILG
Wilmington
PHL
Philadelphia
$1,030 Roundtrip, found 2 hours ago
$1,030
Roundtrip
found 2 hours ago
Select American Airlines flight, departing Fri, Aug 29 from Wilmington to Philadelphia, returning Sun, Aug 31, priced at $1,030 found 2 hours ago
American Airlines
Fri, Aug 29 - Sun, Aug 31
ILG
Wilmington
PHL
Philadelphia
$1,054 Roundtrip, found 2 hours ago
$1,054
Roundtrip
found 2 hours ago
Select American Airlines flight, departing Fri, Aug 29 from Wilmington to Philadelphia, returning Sun, Aug 31, priced at $1,054 found 2 hours ago

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 $933
PHL
Philadelphia Intl.
CheapestClosest
Average driving time to city center17 min
Flights from $933
Flights from Wilmington (ILG) to Philadelphia (PHL)
Origin airport
New Castle
Destination airport
Philadelphia Intl.
Airlines serving
American Airlines
Roundtrip price
$923
Distance
23 mi

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 August. 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 $462 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.

 

Frequently asked questions

How much does a flight from Wilmington, DE (ILG-New Castle) to Philadelphia Intl. Airport (PHL) cost?
Cheap round-trip flights from Wilmington, DE (ILG-New Castle) to Philadelphia Intl. Airport (PHL) start at $924. 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 American Airlines flight leaving ILG on July 12 2025 and touching down at PHL. The price was last updated on July 1 2025 and has not changed since.
What is the cheapest month to fly from ILG to PHL?
The cheapest flights from ILG 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.
What is the cheapest airline that flies from ILG to PHL?
Currently, the cheapest carrier operating one-way flights from ILG to PHL is American Airlines. You can jet off on this route from $462. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from ILG on July 8 2025. Prices were last updated on July 1 2025 and have not changed since.
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.

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*Available to One Key members.