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$114+ Cheap flights from Delaware

This is the cheapest return flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/4. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
ILG — SYD
28 Mar — 4 Apr1
1 adult
1 adult, Economy, 0 bags

Find flights from Delaware

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Cheapest flights from Delaware
Explore the most affordable flight options available from Delaware. Find the lowest fares based on data from user searches, with prices last updated on 26 February 2026.

Wed 6/518:06
PHL
-
SFO
Nonstop6h 18m
United Airlines
Sun 10/523:20
SFO
-
PHL
Nonstop5h 40m
United Airlines
Deal found 24/2$407
Tue 28/416:00
PHL
-
SFO
2 stops9h 45m
Southwest
Mon 4/511:10
SFO
-
PHL
2 stops10h 25m
Southwest
Deal found 25/2$410
Mon 6/418:30
PHL
-
SFO
1 stop9h 34m
JetBlue
Sat 11/420:15
SFO
-
PHL
1 stop8h 25m
JetBlue
Deal found 22/2$418
Wed 22/416:55
PHL
-
SFO
1 stop10h 29m
United Airlines
Sun 26/423:35
SFO
-
PHL
Nonstop5h 40m
United Airlines
Deal found 24/2$421
Wed 15/407:25
PHL
-
SFO
2 stops18h 18m
Alaska Airlines
Tue 21/411:13
SFO
-
PHL
1 stop15h 52m
Alaska Airlines
Deal found 25/2$422
Tue 19/506:00
PHL
-
SFO
Nonstop6h 18m
United Airlines
Sat 30/516:48
SFO
-
PHL
Nonstop5h 41m
United Airlines
Deal found 23/2$427
Thu 9/418:00
PHL
-
SFO
1 stop9h 20m
Southwest
Sat 11/423:25
SFO
-
PHL
1 stop8h 10m
Southwest
Deal found 24/2$432
Fri 10/418:49
PHL
-
SFO
1 stop8h 10m
Delta
Wed 15/408:00
SFO
-
PHL
1 stop7h 23m
Delta
Deal found 22/2$435
Thu 19/307:00
PHL
-
SFO
1 stop8h 25m
Delta
Tue 24/316:47
SFO
-
PHL
2 stops9h 54m
Delta
Deal found 25/2$438
Thu 9/418:21
PHL
-
SFO
Nonstop6h 18m
United Airlines
Tue 14/408:40
SFO
-
PHL
Nonstop5h 35m
United Airlines
Deal found 23/2$439
Mon 30/318:21
PHL
-
SFO
Nonstop6h 18m
United Airlines
Sat 11/406:33
SFO
-
PHL
1 stop7h 59m
United Airlines
Deal found 24/2$441
Wed 19/816:05
PHL
-
MEL
2 stops25h 45m
Delta
Wed 26/810:00
MEL
-
PHL
2 stops26h 20m
Delta
Deal found 25/2$1,415

Find flights from Delaware within your budget

 
Find flights departing from Delaware that match your specified budget. Filter results by price range, allowing you to narrow down options and find flights that fit within your financial constraints. Please note that the search results are based on data from user searches, with fares last updated on 26 February 2026. In the last 7 days, Cheapflights users made a total of 647,157 searches

Fly to

Route

Depart

Return

Price

PhiladelphiaSan Francisco

PHL - SFO

PHLSFO

Philadelphia

Tue 7/4

06:12-09:30

Nonstop6h 18m

San Francisco

Sun 12/4

23:35-08:15

Nonstop5h 40m

$407

PhiladelphiaSan Francisco

PHL - SFO

PHLSFO

Philadelphia

Tue 31/3

06:00-14:00

1 stop11h 00m

San Francisco

Sat 11/4

20:15-07:40

1 stop8h 25m

$418

PhiladelphiaSan Francisco

PHL - SFO

PHLSFO

Philadelphia

Wed 20/5

18:45-23:57

1 stop8h 12m

San Francisco

Wed 27/5

06:00-17:19

1 stop8h 19m

$435

PhiladelphiaSan Francisco

PHL - SFO

PHLSFO

Philadelphia

Wed 13/5

18:06-21:24

Nonstop6h 18m

San Francisco

Sat 16/5

00:45-12:17

1 stop8h 32m

$441

PhiladelphiaSan Francisco

PHL - SFO

PHLSFO

Philadelphia

Wed 29/4

14:00-22:05

2 stops11h 05m

San Francisco

Sat 2/5

06:00-18:35

2 stops9h 35m

$453

PhiladelphiaSan Francisco

PHL - SFO

PHLSFO

Philadelphia

Thu 9/4

18:00-00:20

1 stop9h 20m

San Francisco

Thu 16/4

05:25-18:25

2 stops10h 00m

$472

PhiladelphiaSan Francisco

PHL - SFO

PHLSFO

Philadelphia

Fri 10/4

18:49-23:59

1 stop8h 10m

San Francisco

Sat 11/4

05:50-16:33

1 stop7h 43m

$487

PhiladelphiaSan Francisco

PHL - SFO

PHLSFO

Philadelphia

Thu 21/5

09:25-12:34

Nonstop6h 09m

San Francisco

Sun 24/5

00:50-12:25

1 stop8h 35m

$534

PhiladelphiaSan Francisco

PHL - SFO

PHLSFO

Philadelphia

Thu 19/3

18:54-00:02

1 stop8h 08m

San Francisco

Fri 27/3

17:01-05:41

1 stop9h 40m

$541

PhiladelphiaSan Francisco

PHL - SFO

PHLSFO

Philadelphia

Wed 8/7

17:43-23:36

1 stop8h 53m

San Francisco

Sun 12/7

08:21-06:15

1 stop18h 54m

$548

Flights are sorted by cheapest return flights first.

Deals found on 23/2

Showing 1-10 of 60 resultsSorted by cheapest first
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Best time to book a flight from Delaware

Have a flexible travel schedule? Discover the best time to fly from 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.

Travel insights for flights from Delaware

Get recent, data-driven insights about flights from Delaware including ideal travel times, pricing trends, and more.
No data available for this route at this time. Please check back soon.

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Direct flights from Philadelphia

Related info for your journey

Access useful and relevant information related to your journey from Delaware. This can include details such as airport transportation, visa requirements, travel insurance, luggage regulations, and any other information that can ensure a smooth and hassle-free travel experience. Please note that the information is based on general guidance and may need to be verified with official sources. Data last updated 26 February 2026.

  • How does Cheapflights help users find flights from Delaware?

    Cheapflights helps you search for flights from Delaware via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

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

    Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Delaware for you. Better yet — we are completely free to use.

  • Can Cheapflights find flights from Delaware with no change fees?

    Certainly. Search results for flights from Delaware shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

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

    Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and use a valid email address to enable the Price Alerts feature. That’s it!

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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 from Delaware?

Cheapflights helps you search for flights from Delaware via 900+ travel sites so you don’t have to. After performing a flight search, users can also filter their flight selection by filtering for price, number of stops, airlines, and so on.

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

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Delaware for you. Better yet — we are completely free to use.

Can Cheapflights find flights from Delaware with no change fees?

Certainly. Search results for flights from Delaware shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

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

Yes, and it’s super simple to set up. Click the bell icon next to the flight deals above and use a valid email address to enable the Price Alerts feature. That’s it!

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