New Castle County Flights - Book Cheap Flights to New Castle County

View RM687 flight on Fri, 23 Jan 2026Opens in a new window

Popular airlines to New Castle County

  • American Airlines

    American Airlines

  • Delta

    Delta

  • United

    United

  • Frontier Airlines

    Frontier Airlines

  • Southwest Airlines

    Southwest Airlines

  • Spirit Airlines

    Spirit Airlines

  • JetBlue Airways

    JetBlue Airways

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Cheap round-trip flights to New Castle County

Prices were available within the past 7 days and start at RM687 for one-way flights and RM1,097 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Delta
Fri, 23 Jan - Sun, 25 Jan
IAH
Houston
PHL
Philadelphia
RM1,097 Return, found 1 day ago
RM1,097
Return
found 1 day ago
Select Delta flight, departing Fri, 23 Jan from Houston to Philadelphia, returning Sun, 25 Jan, priced at RM1,097 found 1 day ago
Delta
Fri, 3 Apr - Mon, 6 Apr
IAH
Houston
PHL
Philadelphia
RM1,172 Return, found 3 days ago
RM1,172
Return
found 3 days ago
Select Delta flight, departing Fri, 3 Apr from Houston to Philadelphia, returning Mon, 6 Apr, priced at RM1,172 found 3 days ago
Delta
Fri, 23 Jan - Sun, 25 Jan
IAH
Houston
PHL
Philadelphia
RM1,198 Return, found 1 day ago
RM1,198
Return
found 1 day ago
Select Delta flight, departing Fri, 23 Jan from Houston to Philadelphia, returning Sun, 25 Jan, priced at RM1,198 found 1 day ago
Delta
Fri, 3 Apr - Mon, 6 Apr
IAH
Houston
PHL
Philadelphia
RM1,273 Return, found 3 days ago
RM1,273
Return
found 3 days ago
Select Delta flight, departing Fri, 3 Apr from Houston to Philadelphia, returning Mon, 6 Apr, priced at RM1,273 found 3 days ago
United
Fri, 23 Jan - Sun, 25 Jan
IAH
Houston
PHL
Philadelphia
RM1,340 Return, found 1 day ago
RM1,340
Return
found 1 day ago
Select United flight, departing Fri, 23 Jan from Houston to Philadelphia, returning Sun, 25 Jan, priced at RM1,340 found 1 day ago
American Airlines
Fri, 23 Jan - Sun, 25 Jan
IAH
Houston
PHL
Philadelphia
RM1,341 Return, found 1 day ago
RM1,341
Return
found 1 day ago
Select American Airlines flight, departing Fri, 23 Jan from Houston to Philadelphia, returning Sun, 25 Jan, priced at RM1,341 found 1 day ago
United
Fri, 3 Apr - Mon, 6 Apr
IAH
Houston
PHL
Philadelphia
RM1,357 Return, found 3 days ago
RM1,357
Return
found 3 days ago
Select United flight, departing Fri, 3 Apr from Houston to Philadelphia, returning Mon, 6 Apr, priced at RM1,357 found 3 days ago
United
Fri, 23 Jan - Sun, 25 Jan
IAH
Houston
PHL
Philadelphia
RM1,362 Return, found 1 day ago
RM1,362
Return
found 1 day ago
Select United flight, departing Fri, 23 Jan from Houston to Philadelphia, returning Sun, 25 Jan, priced at RM1,362 found 1 day ago
Air Canada
Fri, 17 Apr - Thu, 23 Apr
MUC
Munich
PHL
Philadelphia
RM2,520 Return, found 15 hours ago
RM2,520
Return
found 15 hours ago
Select Air Canada flight, departing Fri, 17 Apr from Munich to Philadelphia, returning Thu, 23 Apr, priced at RM2,520 found 15 hours ago
British Airways
Fri, 17 Apr - Thu, 23 Apr
MUC
Munich
PHL
Philadelphia
RM2,645 Return, found 15 hours ago
RM2,645
Return
found 15 hours ago
Select British Airways flight, departing Fri, 17 Apr from Munich to Philadelphia, returning Thu, 23 Apr, priced at RM2,645 found 15 hours ago

About New Castle County

Expedia offers flights to New Castle County to meet every traveler's needs. Whatever your flight need - Expedia has the flight for you. So choose from flights to New Castle County or destinations around the world and discover how easy it is to make your flight reservations on Expedia.

Frequently asked questions

How do I find cheap flights to New Castle County that have flexible change policies?
By using our handy "No change fee" filter, that's how. Simply type in your dates and other details, click the "Search" button, then mark the checkbox under the "Flexible change policies" heading (to the left). Expedia makes it easy to find cheap, flexible airfares to New Castle County.
Which airlines fly to New Castle County?
Let Avelo Airlines get you there. This popular carrier provides 34 services a month to Wilmington, DE (ILG-New Castle), a New Castle County gateway.
How can I find cheap tickets to New Castle County?
To get your hands on a great deal to New Castle County, book well in advance. Also use Expedia's "flexible dates" link above your search results. This will display the cheapest prices for similar time frames. In the last seven days, RM1,097 was the best price for a flight to New Castle County.
How much is a flight to New Castle County?
In the last seven days, round-trip flights to New Castle County sold from just RM1,097 and reached a maximum of RM4,609. For one-way journeys departing from Houston (IAH), the lowest price during this time was just RM687.
What are the most popular airports to fly into in New Castle County?
Fly into Wilmington, DE (ILG-New Castle) and sample the best that New Castle County has to offer. As the region's main entry point, about 34 flights touch down here each month.
How much is a plane ticket to New Castle County?
In the last seven days, airfares to New Castle County fluctuated between RM1,097 and RM4,609. Prices tend to go up over time, so secure a good deal today.
What is the best time to go to New Castle County?
If you'd like to see New Castle County's leading city when it's really buzzing, set out for Wilmington sometime in May, June and August. Like most locations in the Northern Hemisphere, summertime here begins June 20, with temperatures ranging between 18ºC and 27ºC.
What months are the cheapest to book a flight to New Castle County?
To snap up a great deal to New Castle County, try to book during the month of February when prices are at their cheapest. When do tickets cost the most? In the United States, it's December.

Trending flights to New Castle County

These prices were available within the past 7 days. Prices quoted are per person, return, for the period specified. Prices and availability are subject to change. Additional terms apply.

Oman Air
Fri, 6 Feb - Sun, 15 Feb
KUL
Kuala Lumpur
PHL
Philadelphia
RM4,609 Return, found 18 hours ago
RM4,609
Return
found 18 hours ago
Select Oman Air flight, departing Fri, 6 Feb from Kuala Lumpur to Philadelphia, returning Sun, 15 Feb, priced at RM4,609 found 18 hours ago
*Available to Expedia members.