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£47+ 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 10/2. 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
11 Feb — 18 Feb1
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 12 January 2026.

Mon 2/319:46PHL - SJU
1 stop13h 31mSpirit Airlines
Fri 6/302:59SJU - PHL
Nonstop4h 12mSpirit Airlines
Deal found 10/1£140
Fri 20/220:39PHL - SJU
Nonstop3h 45mFrontier
Sun 22/202:54SJU - PHL
Nonstop4h 12mFrontier
Deal found 9/1£164
Wed 1/412:00PHL - SJU
Nonstop3h 50mJetBlue
Sun 5/407:00SJU - PHL
Nonstop4h 05mJetBlue
Deal found 10/1£168
Mon 9/315:02PHL - SJU
1 stop7h 46mJetBlue
Wed 18/301:30SJU - PHL
1 stop7h 34mJetBlue
Deal found 10/1£189
Mon 16/318:31PHL - SJU
1 stop6h 42mJetBlue
Wed 18/301:30SJU - PHL
1 stop7h 34mJetBlue
Deal found 10/1£197
Wed 18/213:33PHL - SJU
1 stop8h 18mJetBlue
Fri 20/217:23SJU - PHL
1 stop7h 06mJetBlue
Deal found 11/1£205
Sat 14/220:39PHL - SJU
Nonstop3h 45mFrontier
Sun 15/202:54SJU - PHL
Nonstop4h 12mFrontier
Deal found 11/1£209
Mon 26/107:00PHL - SJU
1 stop7h 30mJetBlue
Sun 1/205:01SJU - PHL
1 stop8h 34mJetBlue
Deal found 9/1£210
Mon 4/520:25PHL - EDI
1 stop12h 35mMultiple Airlines
Tue 12/506:15EDI - PHL
1 stop17h 40mMultiple Airlines
Deal found 11/1£404
Tue 10/218:35PHL - GLA
1 stop10h 15mBritish Airways
Tue 17/209:50GLA - PHL
1 stop11h 25mBritish Airways
Deal found 11/1£406
Mon 2/320:50PHL - MAN
2 stops14h 40mBritish Airways
Tue 10/316:00MAN - PHL
2 stops26h 55mBritish Airways
Deal found 11/1£407
Mon 9/215:30PHL - EDI
3 stops23h 45mMultiple Airlines
Mon 16/222:30EDI - PHL
3 stops21h 17mMultiple Airlines
Deal found 12/1£407

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 12 January 2026. In the last 7 days, Cheapflights users made a total of 858,174 searches

Fly to

Heathrow

Route

Depart

Return

Price

PhiladelphiaSan Juan

PHL - SJU

PHLSJU

Philadelphia

Thu 11/6

12:00-15:50

Nonstop3h 50m

San Juan Luis Munoz Marin Intl

Sat 20/6

12:30-19:30

1 stop7h 00m

£178

PhiladelphiaSan Juan

PHL - SJU

PHLSJU

Philadelphia

Sun 3/5

06:20-16:30

2 stops10h 10m

San Juan Luis Munoz Marin Intl

Thu 7/5

05:05-17:15

2 stops12h 10m

£272

PhiladelphiaSan Juan

PHL - SJU

PHLSJU

Philadelphia

Mon 9/3

09:55-21:22

2 stops11h 27m

San Juan Luis Munoz Marin Intl

Wed 11/3

01:05-14:24

2 stops13h 19m

£280

PhiladelphiaSan Juan

PHL - SJU

PHLSJU

Philadelphia

Wed 25/3

12:10-20:00

1 stop7h 50m

San Juan Luis Munoz Marin Intl

Mon 30/3

01:00-09:50

2 stops8h 50m

£280

PhiladelphiaSan Juan

PHL - SJU

PHLSJU

Philadelphia

Wed 25/3

12:10-23:36

2 stops11h 26m

San Juan Luis Munoz Marin Intl

Tue 31/3

01:00-14:16

2 stops13h 16m

£291

PhiladelphiaSan Juan

PHL - SJU

PHLSJU

Philadelphia

Fri 1/5

06:55-14:55

1 stop8h 00m

San Juan Luis Munoz Marin Intl

Thu 7/5

05:05-17:15

2 stops12h 10m

£300

PhiladelphiaSan Juan

PHL - SJU

PHLSJU

Philadelphia

Fri 24/4

12:45-23:55

2 stops11h 10m

San Juan Luis Munoz Marin Intl

Tue 5/5

11:25-22:00

2 stops10h 35m

£309

PhiladelphiaSan Juan

PHL - SJU

PHLSJU

Philadelphia

Thu 7/5

14:15-23:55

2 stops9h 40m

San Juan Luis Munoz Marin Intl

Mon 11/5

05:05-17:15

2 stops12h 10m

£309

PhiladelphiaSan Juan

PHL - SJU

PHLSJU

Philadelphia

Sun 24/5

10:10-20:34

1 stop10h 24m

San Juan Luis Munoz Marin Intl

Fri 29/5

07:45-17:22

1 stop9h 37m

£318

PhiladelphiaSan Juan

PHL - SJU

PHLSJU

Philadelphia

Wed 8/4

09:10-21:05

2 stops11h 55m

San Juan Luis Munoz Marin Intl

Mon 13/4

05:05-17:15

2 stops12h 10m

£318

Flights are sorted by cheapest return flights first.

Deals found on 10/1

Showing 1-10 of 60 results
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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

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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 12 January 2026.

  • 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 £369 round trip
    Travel from Philadelphia to Edinburgh from £466 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.

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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?

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.

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