A cityscape with a river, industrial buildings, and a mix of modern and older architecture.

Cheap Flights to New Castle County | Popular Routes to New Castle County from HK$1,795

View HK$1,795 flight on Sat, 18 Jul 2026Opens in a new window

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  • Alaska Airlines

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Cheap round-trip flights to New Castle County

Prices were available within the past 7 days and start at HK$1,795 for one-way flights and HK$3,172 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Air Canada
Sat, 18 Jul - Wed, 22 Jul
YYZ
Toronto
PHL
Philadelphia
HK$3,172 Return, found 8 hours ago
HK$3,172
Return
found 8 hours ago
Select Air Canada flight, departing Sat, 18 Jul from Toronto to Philadelphia, returning Wed, 22 Jul, priced at HK$3,172 found 8 hours ago
American Airlines
Sat, 18 Jul - Wed, 22 Jul
YYZ
Toronto
PHL
Philadelphia
HK$3,173 Return, found 8 hours ago
HK$3,173
Return
found 8 hours ago
Select American Airlines flight, departing Sat, 18 Jul from Toronto to Philadelphia, returning Wed, 22 Jul, priced at HK$3,173 found 8 hours ago
Air Canada
Sat, 18 Jul - Wed, 22 Jul
YYZ
Toronto
PHL
Philadelphia
HK$3,198 Return, found 8 hours ago
HK$3,198
Return
found 8 hours ago
Select Air Canada flight, departing Sat, 18 Jul from Toronto to Philadelphia, returning Wed, 22 Jul, priced at HK$3,198 found 8 hours ago
Delta
Sat, 18 Jul - Wed, 22 Jul
YYZ
Toronto
PHL
Philadelphia
HK$3,217 Return, found 8 hours ago
HK$3,217
Return
found 8 hours ago
Select Delta flight, departing Sat, 18 Jul from Toronto to Philadelphia, returning Wed, 22 Jul, priced at HK$3,217 found 8 hours ago
Air Canada
Sat, 18 Jul - Wed, 22 Jul
YYZ
Toronto
PHL
Philadelphia
HK$3,225 Return, found 8 hours ago
HK$3,225
Return
found 8 hours ago
Select Air Canada flight, departing Sat, 18 Jul from Toronto to Philadelphia, returning Wed, 22 Jul, priced at HK$3,225 found 8 hours ago
Air Canada
Sat, 18 Jul - Wed, 22 Jul
YYZ
Toronto
PHL
Philadelphia
HK$3,251 Return, found 8 hours ago
HK$3,251
Return
found 8 hours ago
Select Air Canada flight, departing Sat, 18 Jul from Toronto to Philadelphia, returning Wed, 22 Jul, priced at HK$3,251 found 8 hours ago
American Airlines
Thu, 30 Jul - Tue, 4 Aug
YYZ
Toronto
PHL
Philadelphia
HK$3,288 Return, just found
HK$3,288
Return
just found
Select American Airlines flight, departing Thu, 30 Jul from Toronto to Philadelphia, returning Tue, 4 Aug, priced at HK$3,288 just found
United
Thu, 30 Jul - Tue, 4 Aug
YYZ
Toronto
PHL
Philadelphia
HK$4,330 Return, just found
HK$4,330
Return
just found
Select United flight, departing Thu, 30 Jul from Toronto to Philadelphia, returning Tue, 4 Aug, priced at HK$4,330 just found
Delta
Thu, 10 Sept - Thu, 17 Sept
HKG
Hong Kong SAR
PHL
Philadelphia
HK$7,820 Return, found 22 hours ago
HK$7,820
Return
found 22 hours ago
Select Delta flight, departing Thu, 10 Sept from Hong Kong SAR to Philadelphia, returning Thu, 17 Sept, priced at HK$7,820 found 22 hours ago
Korean Air
Thu, 10 Sept - Thu, 17 Sept
HKG
Hong Kong SAR
PHL
Philadelphia
HK$7,899 Return, found 22 hours ago
HK$7,899
Return
found 22 hours ago
Select Korean Air flight, departing Thu, 10 Sept from Hong Kong SAR to Philadelphia, returning Thu, 17 Sept, priced at HK$7,899 found 22 hours ago

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.

Delta
Thu, 10 Sept - Thu, 17 Sept
HKG
Hong Kong SAR
PHL
Philadelphia
HK$7,820 Return, found 22 hours ago
HK$7,820
Return
found 22 hours ago
Select Delta flight, departing Thu, 10 Sept from Hong Kong SAR to Philadelphia, returning Thu, 17 Sept, priced at HK$7,820 found 22 hours 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, HK$3,172 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 HK$3,172 and reached a maximum of HK$7,899. For one-way journeys departing from Toronto (YYZ), the lowest price during this time was just HK$1,795.
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.
When is the cheapest time to fly to New Castle County?
Take off for New Castle County early in the week and you'll usually be rewarded with more affordable fares. Tuesday is typically the cheapest day to fly out, with Monday a close second. If you're hoping to avoid the costliest flights, keep clear of Saturdays.
How much is a plane ticket to New Castle County?
In the last seven days, airfares to New Castle County fluctuated between HK$3,172 and HK$7,899. 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 traveller'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
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