$1,116+ Cheap flights to Delaware

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/12. Fares are subject to change and may not be available on all flights or dates of travel.
— ILG
19 Dec — 26 Dec1
1 adult
1 adult, Economy, 0 bags

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Cheapest flights to Delaware
Explore the most affordable flight options available to Delaware. Find the lowest fares based on data from user searches, with prices last updated on 19 November 2025.

Thu 4/1211:45SYD - PHL
2 stops27h 00mAir New Zealand
Sun 7/1206:15PHL - SYD
2 stops34h 30mAir New Zealand
Deal found 16/11$1,762
Thu 4/1211:45SYD - PHL
3 stops42h 22mMultiple Airlines
Sun 7/1206:15PHL - SYD
2 stops36h 15mMultiple Airlines
Deal found 16/11$1,827
Thu 4/1211:20SYD - PHL
1 stop28h 29mAmerican Airlines
Sun 7/1210:27PHL - SYD
1 stop30h 33mAmerican Airlines
Deal found 16/11$2,838
Tue 16/1221:40SYD - PHL
2 stops48h 06mAlaska Airlines
Tue 23/1207:00PHL - SYD
2 stops44h 45mAlaska Airlines
Deal found 18/11$3,116
Tue 16/1211:50SYD - PHL
1 stop20h 51mUnited Airlines
Tue 23/1208:15PHL - SYD
1 stop30h 05mUnited Airlines
Deal found 18/11$7,299

Flights to Delaware in 2025

Find the latest flights to Delaware in 2025, with up-to-date prices and availability. In the last 7 days, Cheapflights users made a total of 647,157 searches and data was last updated on 19 November 2025.

Return from

$1,762

One-way from

$1,043

Popular in

May

Cheapest in

February

Average price

$2,501
Air New Zealand
  • Air New Zealand
  • 4/12-7/12
  • 4 total stops
  • 61h 30m total
  • Sydney to Philadelphia
Search Deals
15/2
  • 15/2
  • 3 total stops
  • 32h 26m total
  • Sydney to Delaware
Search Deals
Highest demand for flights based on searches. 3% potential increase in price ($71 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($73 potential savings vs. average return price).
Search Deals
Average for return flights in November 2025
Search Deals

Cheapflights Fare Finder

 
Locate flights to Delaware that fit your budget, with regularly updated fares and availability. In the last 7 days, Cheapflights users made a total of 647,157 searches and data was last updated on 19 November 2025.
Use the filters below to find and compare flights to Delaware that are best for you.

Fly from

Sydney

Route

Depart

Return

Price

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Thu 4/12

11:45-22:45

2 stops27h 00m

Philadelphia

Sun 7/12

06:15-08:45

2 stops34h 30m

$1,762

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Thu 4/12

11:45-14:07

3 stops42h 22m

Philadelphia

Sun 7/12

06:15-10:30

2 stops36h 15m

$1,827

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Thu 12/2

11:20-14:47

2 stops43h 27m

Philadelphia

Mon 16/2

15:30-09:35

2 stops26h 05m

$1,987

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Fri 6/3

11:20-15:49

2 stops44h 29m

Philadelphia

Tue 10/3

15:30-08:35

2 stops26h 05m

$2,042

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Mon 4/5

09:10-20:14

2 stops25h 04m

Philadelphia

Fri 15/5

13:50-07:05

1 stop27h 15m

$2,452

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Thu 12/2

11:20-06:55

1 stop35h 35m

Philadelphia

Mon 16/2

13:38-06:55

2 stops25h 17m

$2,598

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Fri 6/3

11:20-06:55

1 stop35h 35m

Philadelphia

Tue 10/3

18:35-09:50

2 stops24h 15m

$2,627

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Thu 8/1

21:40-18:03

2 stops36h 23m

Philadelphia

Thu 15/1

19:06-19:45

2 stops32h 39m

$2,639

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Thu 12/2

21:40-09:00

1 stop51h 20m

Philadelphia

Mon 16/2

19:50-18:50

1 stop31h 00m

$2,750

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Mon 8/12

07:45-22:45

2 stops31h 00m

$1,116

Flights are sorted by cheapest return flights first.

Deals found on 18/11

Showing 1-10 of 12 results
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Best time to book a flight to Delaware

Have a flexible travel schedule? Discover the best time to fly to Delaware with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight to Delaware

How long is the flight to Delaware?

On average, a flight from Sydney to Delaware takes 20 hours 51 minutes. Flights to Delaware from other popular cities in Australia will vary in length. Below are a few examples of popular routes and their flight times.

Rainfall in Delaware by month

Plan your trip to Delaware by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Delaware ranges from 73.0 - 108.0 mm per month. July is typically the wettest month, when rainfall can reach 108.0 mm. February is typically the driest time to visit Delaware when rainfall is around 73.0 mm.

Temperature in Delaware by month

Plan your trip to Delaware by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Delaware, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 25.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 0.0 C).

FAQs about flying to Delaware

  • Can I find cheaper flights to Delaware if I am willing to have stopovers?

    Yes, flights with stopovers are often cheaper than direct flights. Keep an eye out for flight deals to Delaware on Cheapflights that require 1 or 2 stops for potential cost savings.

  • Where does the fastest flight to Delaware depart from?

    For those looking to save time traveling to Delaware, Sydney Kingsford Smith offers the quickest one-way flight (20 hours 51 minutes).

  • Does Greater Wilmington have car hire?

    Yes. Those touching down at Greater Wilmington can take advantage of the car hire services offered upon their arrival.

  • Are there hotels close to Greater Wilmington?

    Yes. Greater Wilmington has hotels nearby for those requiring accommodations. Skyways Hotel New Castle, De is the closest property to Greater Wilmington (0.0 km away from Greater Wilmington).

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Find flights to Delaware

Select your preferred flight destination in Delaware from the list below.
Flights to Wilmington
Flights to Philadelphia

Fly with Cheapflights

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How does Cheapflights help users find flights to Delaware?

Deals for Delaware flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose to your preference, such as price, airport, cabin class, and plenty of other options.

Why should you use Cheapflights to find cheap flight tickets to Delaware?

Cheapflights helps you find that perfect flight to Delaware by searching from hundreds of airlines and agencies you know and love. We are also free to use, in case you were wondering!

Can Cheapflights find flights to Delaware with no change fees?

Cheapflights does show flights with no change fees to all users. To see these options for flights to Delaware, users can toggle the no change fees filter when performing a flight search.

Can Cheapflights notify me if prices for flights to Delaware become cheaper?

Of course! You can track prices for flights to Delaware and get an alert from Cheapflights when they change. Have a valid email address ready and click the bell icon next to the flight deals to set up your price alerts.

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