Cheap Flights to New Castle County

View NZ$96 flight on Sat, 16 May 2026Opens in a new window

Popular airlines to New Castle County

  • Frontier Airlines

  • American Airlines

  • Delta

  • United

  • Southwest Airlines

  • Spirit Airlines

  • JetBlue Airways

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Cheapest Flights to New Castle County

Prices were available within the past 7 days for one-way flights and round trip tickets for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Wed, 4 Mar - Sun, 8 Mar
DEN
Denver
PHL
Philadelphia
NZ$537 Return, found 22 hours ago
NZ$537
Return
found 22 hours ago
Select American Airlines flight, departing Wed, 4 Mar from Denver to Philadelphia, returning Sun, 8 Mar, priced at NZ$537 found 22 hours ago
American Airlines
Wed, 4 Mar - Sun, 8 Mar
DEN
Denver
PHL
Philadelphia
NZ$553 Return, found 22 hours ago
NZ$553
Return
found 22 hours ago
Select American Airlines flight, departing Wed, 4 Mar from Denver to Philadelphia, returning Sun, 8 Mar, priced at NZ$553 found 22 hours ago
American Airlines
Wed, 4 Mar - Sun, 8 Mar
DEN
Denver
PHL
Philadelphia
NZ$602 Return, found 22 hours ago
NZ$602
Return
found 22 hours ago
Select American Airlines flight, departing Wed, 4 Mar from Denver to Philadelphia, returning Sun, 8 Mar, priced at NZ$602 found 22 hours ago
American Airlines
Wed, 4 Mar - Sun, 8 Mar
DEN
Denver
PHL
Philadelphia
NZ$608 Return, found 22 hours ago
NZ$608
Return
found 22 hours ago
Select American Airlines flight, departing Wed, 4 Mar from Denver to Philadelphia, returning Sun, 8 Mar, priced at NZ$608 found 22 hours ago
American Airlines
Wed, 4 Mar - Sun, 8 Mar
DEN
Denver
PHL
Philadelphia
NZ$618 Return, found 22 hours ago
NZ$618
Return
found 22 hours ago
Select American Airlines flight, departing Wed, 4 Mar from Denver to Philadelphia, returning Sun, 8 Mar, priced at NZ$618 found 22 hours ago
American Airlines
Wed, 4 Mar - Sun, 8 Mar
DEN
Denver
PHL
Philadelphia
NZ$624 Return, found 22 hours ago
NZ$624
Return
found 22 hours ago
Select American Airlines flight, departing Wed, 4 Mar from Denver to Philadelphia, returning Sun, 8 Mar, priced at NZ$624 found 22 hours ago
Delta
Wed, 4 Mar - Sun, 8 Mar
DEN
Denver
PHL
Philadelphia
NZ$653 Return, found 22 hours ago
NZ$653
Return
found 22 hours ago
Select Delta flight, departing Wed, 4 Mar from Denver to Philadelphia, returning Sun, 8 Mar, priced at NZ$653 found 22 hours ago
United
Wed, 4 Mar - Sun, 8 Mar
DEN
Denver
PHL
Philadelphia
NZ$711 Return, found 22 hours ago
NZ$711
Return
found 22 hours ago
Select United flight, departing Wed, 4 Mar from Denver to Philadelphia, returning Sun, 8 Mar, priced at NZ$711 found 22 hours ago
Alaska Airlines
Thu, 19 Feb - Tue, 24 Feb
AKL
Auckland
PHL
Philadelphia
NZ$1,520 Return, found 2 days ago
NZ$1,520
Return
found 2 days ago
Select Alaska Airlines flight, departing Thu, 19 Feb from Auckland to Philadelphia, returning Tue, 24 Feb, priced at NZ$1,520 found 2 days ago
Air Canada
Fri, 20 Feb - Sat, 28 Feb
AKL
Auckland
PHL
Philadelphia
NZ$1,557 Return, found 3 days ago
NZ$1,557
Return
found 3 days ago
Select Air Canada flight, departing Fri, 20 Feb from Auckland to Philadelphia, returning Sat, 28 Feb, priced at NZ$1,557 found 3 days ago

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New Castle County Flights

There is no better time to steal away to New Castle County than right now, and Expedia.co.nz knows just how to get you there without breaking your budget. You can find cheap flights to New Castle County right here on Expedia.co.nz, and comparing itineraries couldn't be easier. Whether you are early bird flyer or want to catch New Castle County flights on the red-eye schedule, Expedia.co.nz can show you all the available flights at the best price. From domestic flights to international journeys, the flight you need can be found and booked right here with us.

Once you have your cheap tickets to New Castle County in hand, holiday planning can move forward full steam ahead. Unleash the potential of your holiday with a car rental, which makes it possible to explore New Castle County without relying on public transportation or trekking far and wide on foot.

If you're in the market for adventure, book one of the Expedia holiday packages. Our packages save you money and time by bundling hotels and flights. What are you waiting for? Your next holiday in New Castle County starts right here!

New Castle County Flights Information

Airlines serving
American Airlines, United, Delta, Alaska Airlines, Air Canada
Roundtrip price
from NZ$537

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, NZ$537 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 NZ$537 and reached a maximum of NZ$1,557. For one-way journeys departing from Denver (DEN), the lowest price during this time was just NZ$96.
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 NZ$537 and NZ$1,557. 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.

Alaska Airlines
Thu, 19 Feb - Tue, 24 Feb
AKL
Auckland
PHL
Philadelphia
NZ$1,520 Return, found 2 days ago
NZ$1,520
Return
found 2 days ago
Select Alaska Airlines flight, departing Thu, 19 Feb from Auckland to Philadelphia, returning Tue, 24 Feb, priced at NZ$1,520 found 2 days ago
*Available to Expedia members.