$838+ 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 15/10. Fares are subject to change and may not be available on all flights or dates of travel.
— ILG
17 Oct — 24 Oct1
1 adult
1 adult, Economy

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 17 September 2025.

Return from

$1,431

One-way from

$838

Popular in

December

Cheapest in

February

Average price

$2,507
6/10-21/10
  • 6/10-21/10
  • 3 total stops
  • 69h 26m total
  • Sydney to Philadelphia
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15/10
  • 15/10
  • 3 total stops
  • 38h 21m total
  • Sydney to Delaware
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Highest demand for flights based on searches. 17% potential increase in price ($642 potential increase over avg. return price).
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Cheapest flight prices on average. 4% potential price decrease ($128 potential savings vs. average return price).
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Average for return flights in September 2025
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Find flight deals to Delaware

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 17 September 2025.

Mon 6/1018:45SYD - PHL
1 stop26h 10mMultiple Airlines
Tue 21/1021:14PHL - SYD
2 stops43h 16mMultiple Airlines
Deal found 15/9$1,431
Thu 30/1014:15SYD - PHL
3 stops31h 00mMultiple Airlines
Thu 6/1112:40PHL - SYD
3 stops32h 20mMultiple Airlines
Deal found 15/9$1,500
Thu 30/1010:20SYD - PHL
2 stops43h 27mAir Canada
Thu 6/1115:30PHL - SYD
2 stops26h 05mAir Canada
Deal found 15/9$1,509
Mon 6/1010:20SYD - PHL
2 stops44h 29mAir Canada
Tue 21/1015:25PHL - SYD
2 stops25h 55mAir Canada
Deal found 15/9$1,551
Thu 30/1011:20SYD - PHL
1 stop23h 59mAmerican Airlines
Thu 6/1115:55PHL - SYD
1 stop25h 05mAmerican Airlines
Deal found 15/9$1,660
Mon 6/1010:10SYD - PHL
1 stop29h 49mQantas Airways
Tue 21/1015:45PHL - SYD
1 stop25h 20mQantas Airways
Deal found 15/9$1,722
Thu 2/1017:45SYD - PHL
2 stops26h 20mMultiple Airlines
Thu 9/1006:19PHL - SYD
2 stops34h 46mMultiple Airlines
Deal found 15/9$1,852
Mon 24/1111:50SYD - PHL
1 stop20h 51mUnited Airlines
Tue 9/1208:15PHL - SYD
1 stop30h 45mUnited Airlines
Deal found 15/9$1,963
Mon 6/1011:20SYD - PHL
3 stops28h 25mUnited Airlines
Tue 21/1015:00PHL - SYD
2 stops25h 55mUnited Airlines
Deal found 15/9$1,966
Wed 31/1217:45SYD - PHL
1 stop29h 43mQantas Airways
Mon 1/618:42PHL - SYD
1 stop22h 23mQantas Airways
Deal found 15/9$2,385

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 17 September 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

Mon 6/10

18:45-05:55

1 stop26h 10m

Philadelphia

Tue 21/10

21:14-07:30

2 stops43h 16m

$1,431

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Thu 30/10

10:20-14:47

2 stops43h 27m

Philadelphia

Thu 6/11

15:30-09:35

2 stops26h 05m

$1,509

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Mon 6/10

10:20-15:49

2 stops44h 29m

Philadelphia

Tue 21/10

15:25-08:20

2 stops25h 55m

$1,551

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Mon 6/10

10:10-00:59

1 stop29h 49m

Philadelphia

Tue 21/10

15:45-08:05

1 stop25h 20m

$1,722

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Mon 24/11

12:10-19:27

2 stops23h 17m

Philadelphia

Tue 9/12

13:15-09:05

3 stops27h 50m

$1,963

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Mon 6/10

11:20-00:45

3 stops28h 25m

Philadelphia

Tue 21/10

15:00-07:55

2 stops25h 55m

$1,966

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Wed 31/12

17:45-07:28

1 stop29h 43m

Philadelphia

Mon 1/6

18:42-07:05

1 stop22h 23m

$2,385

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Sat 7/3

10:40-20:37

2 stops25h 57m

Philadelphia

Tue 10/3

13:30-06:05

2 stops25h 35m

$2,391

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Wed 15/10

17:20-16:41

3 stops38h 21m

$838

SydneyPhiladelphia

SYD - PHL

SYDPHL

Sydney Kingsford Smith

Wed 15/10

17:20-16:41

3 stops38h 21m

$838

Flights are sorted by cheapest return flights first.

Deals found on 15/9

Showing 1-10 of 11 results
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2

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 21 hours 0 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.

What are the most popular airlines that fly to Delaware?

The most popular airlines flying from Sydney to Delaware are Etihad Airways, Qatar Airways and Emirates.

Etihad Airways
Etihad Airways
From $1,140
Qatar Airways
Qatar Airways
From $967
Emirates
Emirates
From $1,027
Royal Jordanian
Royal Jordanian
From $1,110

What are the cheapest airlines that fly to Delaware?

The cheapest airlines flying from Sydney to Delaware are Oman Air, Turkish Airlines and Virgin Australia.

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 (21 hours 0 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

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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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