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

View RM3,129 flight on Fri, 25 Sept 2026Opens in a new window

Popular airlines to New Castle County

  • Frontier Airlines

  • American Airlines

  • Delta

  • United

  • JetBlue Airways

  • Southwest Airlines

  • Alaska Airlines

  • Be in the know

    Get alerts if flight prices drop or rise*

  • Book smarter

    Save up to 30% on select hotels after you book a flight*

  • Earn twice

    Earn your airline miles on top of our rewards
    Sign in

Cheap round-trip flights to New Castle County

Prices were available within the past 7 days and start at RM3,129 for one-way flights and RM4,954 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Oman Air
Fri, 25 Sept - Sun, 24 Jan
KUL
Kuala Lumpur
PHL
Philadelphia
RM4,954 Return, found 5 hours ago
RM4,954
Return
found 5 hours ago
Select Oman Air flight, departing Fri, 25 Sept from Kuala Lumpur to Philadelphia, returning Sun, 24 Jan, priced at RM4,954 found 5 hours ago
China Airlines
Mon, 21 Sept - Sun, 1 Nov
KUL
Kuala Lumpur
PHL
Philadelphia
RM5,394 Return, found 12 hours ago
RM5,394
Return
found 12 hours ago
Select China Airlines flight, departing Mon, 21 Sept from Kuala Lumpur to Philadelphia, returning Sun, 1 Nov, priced at RM5,394 found 12 hours ago
Air Canada
Mon, 20 Jul - Mon, 27 Jul
KUL
Kuala Lumpur
PHL
Philadelphia
RM5,545 Return, found 1 hour ago
RM5,545
Return
found 1 hour ago
Select Air Canada flight, departing Mon, 20 Jul from Kuala Lumpur to Philadelphia, returning Mon, 27 Jul, priced at RM5,545 found 1 hour ago
Air Canada
Mon, 20 Jul - Mon, 27 Jul
KUL
Kuala Lumpur
PHL
Philadelphia
RM5,564 Return, found 1 hour ago
RM5,564
Return
found 1 hour ago
Select Air Canada flight, departing Mon, 20 Jul from Kuala Lumpur to Philadelphia, returning Mon, 27 Jul, priced at RM5,564 found 1 hour ago
Air Canada
Mon, 20 Jul - Mon, 27 Jul
KUL
Kuala Lumpur
PHL
Philadelphia
RM5,583 Return, found 1 hour ago
RM5,583
Return
found 1 hour ago
Select Air Canada flight, departing Mon, 20 Jul from Kuala Lumpur to Philadelphia, returning Mon, 27 Jul, priced at RM5,583 found 1 hour ago
Air Canada
Mon, 20 Jul - Mon, 27 Jul
KUL
Kuala Lumpur
PHL
Philadelphia
RM5,595 Return, found 1 hour ago
RM5,595
Return
found 1 hour ago
Select Air Canada flight, departing Mon, 20 Jul from Kuala Lumpur to Philadelphia, returning Mon, 27 Jul, priced at RM5,595 found 1 hour ago
Air Canada
Mon, 20 Jul - Mon, 27 Jul
KUL
Kuala Lumpur
PHL
Philadelphia
RM5,614 Return, found 1 hour ago
RM5,614
Return
found 1 hour ago
Select Air Canada flight, departing Mon, 20 Jul from Kuala Lumpur to Philadelphia, returning Mon, 27 Jul, priced at RM5,614 found 1 hour ago
United
Fri, 25 Sept - Sun, 24 Jan
KUL
Kuala Lumpur
PHL
Philadelphia
RM6,211 Return, found 5 hours ago
RM6,211
Return
found 5 hours ago
Select United flight, departing Fri, 25 Sept from Kuala Lumpur to Philadelphia, returning Sun, 24 Jan, priced at RM6,211 found 5 hours ago
All Nippon Airways
Fri, 25 Sept - Sun, 24 Jan
KUL
Kuala Lumpur
PHL
Philadelphia
RM6,323 Return, found 5 hours ago
RM6,323
Return
found 5 hours ago
Select All Nippon Airways flight, departing Fri, 25 Sept from Kuala Lumpur to Philadelphia, returning Sun, 24 Jan, priced at RM6,323 found 5 hours ago
American Airlines
Mon, 20 Jul - Mon, 27 Jul
KUL
Kuala Lumpur
PHL
Philadelphia
RM6,515 Return, found 1 hour ago
RM6,515
Return
found 1 hour ago
Select American Airlines flight, departing Mon, 20 Jul from Kuala Lumpur to Philadelphia, returning Mon, 27 Jul, priced at RM6,515 found 1 hour ago

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, RM4,954 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 RM4,954 and reached a maximum of RM6,515. For one-way journeys departing from Kuala Lumpur (KUL), the lowest price during this time was just RM3,129.
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 RM4,954 and RM6,515. 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.

Book with confidence

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.
About New Castle County
*Available to Expedia members.