Find flights
Deals

£59+ 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 4/2. 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 — LHR
13 Dec — 20 Dec1
1 adult
1 adult, Economy, 0 bags

Find flights from Delaware

Enter your travel dates to find the best prices.

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 13 November 2025.

Sat 13/1218:54PHL - SFO
1 stop19h 06mAlaska Airlines
Mon 15/1209:00SFO - PHL
1 stop17h 46mAlaska Airlines
Deal found 12/11£220
Sat 13/1206:15PHL - SFO
Nonstop6h 25mUnited Airlines
Tue 16/1223:20SFO - PHL
1 stop7h 15mUnited Airlines
Deal found 12/11£228
Wed 15/407:00PHL - SFO
1 stop9h 33mAlaska Airlines
Mon 20/417:45SFO - PHL
1 stop8h 38mAlaska Airlines
Deal found 11/11£235
Sat 13/1208:06PHL - SFO
1 stop9h 41mDelta
Fri 9/100:47SFO - PHL
1 stop6h 45mDelta
Deal found 13/11£235
Thu 22/106:40PHL - SFO
2 stops10h 40mSouthwest
Tue 27/109:50SFO - PHL
1 stop9h 10mSouthwest
Deal found 12/11£239
Fri 6/208:35PHL - SFO
Nonstop6h 28mUnited Airlines
Sun 15/213:12SFO - PHL
Nonstop5h 21mUnited Airlines
Deal found 12/11£241
Sat 13/1206:15PHL - SFO
Nonstop6h 25mUnited Airlines
Sun 4/100:30SFO - PHL
1 stop8h 10mUnited Airlines
Deal found 11/11£244
Thu 11/1206:30PHL - SFO
1 stop8h 19mUnited Airlines
Sat 13/1211:15SFO - PHL
Nonstop5h 26mUnited Airlines
Deal found 12/11£244
Wed 29/412:55PHL - SFO
1 stop8h 52mUnited Airlines
Sun 3/523:05SFO - PHL
Nonstop5h 40mUnited Airlines
Deal found 10/11£248
Sun 21/1206:17PHL - SFO
Nonstop6h 28mUnited Airlines
Sat 27/1222:40SFO - PHL
Nonstop5h 24mUnited Airlines
Deal found 11/11£249
Thu 4/1217:00PHL - SFO
1 stop8h 30mSouthwest
Wed 10/1208:20SFO - PHL
2 stops9h 40mSouthwest
Deal found 12/11£250
Wed 3/1217:30PHL - MAN
1 stop9h 05mMultiple Airlines
Wed 10/1208:15MAN - PHL
1 stop12h 45mMultiple Airlines
Deal found 12/11£423

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 13 November 2025. In the last 7 days, Cheapflights users made a total of 858,174 searches

Fly to

Heathrow

Route

Depart

Return

Price

PhiladelphiaSan Francisco

PHL - SFO

PHLSFO

Philadelphia

Wed 15/4

06:10-09:28

Nonstop6h 18m

San Francisco

Sun 19/4

23:05-07:45

Nonstop5h 40m

£220

PhiladelphiaSan Francisco

PHL - SFO

PHLSFO

Philadelphia

Fri 27/2

08:35-12:06

Nonstop6h 31m

San Francisco

Mon 9/3

23:55-12:07

1 stop9h 12m

£228

PhiladelphiaSan Francisco

PHL - SFO

PHLSFO

Philadelphia

Wed 21/1

08:35-12:03

Nonstop6h 28m

San Francisco

Sun 25/1

23:56-12:07

1 stop9h 11m

£228

PhiladelphiaSan Francisco

PHL - SFO

PHLSFO

Philadelphia

Fri 5/12

15:35-22:55

1 stop10h 20m

San Francisco

Tue 9/12

11:15-19:41

Nonstop5h 26m

£228

PhiladelphiaSan Francisco

PHL - SFO

PHLSFO

Philadelphia

Wed 18/2

17:00-23:11

1 stop9h 11m

San Francisco

Tue 24/2

13:12-21:33

Nonstop5h 21m

£228

PhiladelphiaSan Francisco

PHL - SFO

PHLSFO

Philadelphia

Thu 11/12

06:30-11:49

1 stop8h 19m

San Francisco

Mon 15/12

11:15-19:41

Nonstop5h 26m

£228

PhiladelphiaSan Francisco

PHL - SFO

PHLSFO

Philadelphia

Wed 22/4

06:10-09:28

Nonstop6h 18m

San Francisco

Wed 29/4

23:59-12:10

1 stop9h 11m

£228

PhiladelphiaSan Francisco

PHL - SFO

PHLSFO

Philadelphia

Sat 13/12

07:06-14:47

1 stop10h 41m

San Francisco

Sun 14/12

00:30-10:51

1 stop7h 21m

£235

PhiladelphiaSan Francisco

PHL - SFO

PHLSFO

Philadelphia

Fri 6/2

17:50-23:59

1 stop9h 09m

San Francisco

Sun 8/2

01:00-12:07

1 stop8h 07m

£235

PhiladelphiaSan Francisco

PHL - SFO

PHLSFO

Philadelphia

Thu 4/12

14:24-20:59

1 stop9h 35m

San Francisco

Mon 8/12

19:37-09:27

2 stops10h 50m

£260

Flights are sorted by cheapest return flights first.

Deals found on 12/11

Showing 1-10 of 60 results
1
2
3
...
6

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.

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.

Direct flights from USA

Book a direct flight from one of these other cities located in USA.
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 13 November 2025.

  • Where are the cheapest places to fly to from Delaware?

    Check out the cheapest flights from Delaware to embark to:
    Travel from Philadelphia to London from £366 round trip
    Travel from Philadelphia to Edinburgh from £446 round trip

  • How does Cheapflights help users find flights from Delaware?

    When you search for this flight from Delaware, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the best flight for you.

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

    Millions of users choose and trust Cheapflights to book the best flight deals from Delaware for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

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

    Users can book flights with no change fees policies with our dedicated filters. Book flights from Delaware flexibly with Cheapflights today.

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

    Not ready to book yet? You can track prices for flights from Delaware on Cheapflights with our Price Alerts feature and get notified when better prices are available.

See more FAQs

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?

When you search for this flight from Delaware, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the best flight for you.

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

Millions of users choose and trust Cheapflights to book the best flight deals from Delaware for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from Delaware with no change fees?

Users can book flights with no change fees policies with our dedicated filters. Book flights from Delaware flexibly with Cheapflights today.

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

Not ready to book yet? You can track prices for flights from Delaware on Cheapflights with our Price Alerts feature and get notified when better prices are available.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.