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Cheap flights from London to Delaware from £211

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 6/2. Fares are subject to change and may not be available on all flights or dates of travel.
LON — ILG
30 Jan — 6 Feb1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from London to Delaware

Enter your travel dates to find the best prices.

Cheapest flights from London to Delaware
Explore the most affordable flight options available from London to Delaware. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 31 December 2025.

Wed 31/1207:20LHR - PHL
1 stop12h 50mAmerican Airlines
Fri 30/113:41PHL - LHR
1 stop11h 34mAmerican Airlines
Deal found 30/12£751
Tue 30/1209:20LHR - PHL
1 stop13h 50mJetBlue
Sat 10/108:10PHL - LHR
1 stop17h 45mJetBlue
Deal found 29/12£763
Mon 29/1216:20LHR - PHL
1 stop28h 15mBritish Airways
Mon 12/121:31PHL - LHR
1 stop16h 29mBritish Airways
Deal found 29/12£823
Tue 30/1210:15LHR - PHL
Nonstop8h 00mAmerican Airlines
Sat 10/113:41PHL - LHR
1 stop11h 34mAmerican Airlines
Deal found 29/12£829
Wed 31/1209:00LHR - PHL
2 stops34h 50mAir Canada
Fri 30/115:30PHL - LHR
1 stop10h 40mAir Canada
Deal found 30/12£830
Wed 31/1207:20LHR - PHL
1 stop12h 50mAmerican Airlines
Thu 8/113:41PHL - LHR
1 stop11h 09mAmerican Airlines
Deal found 29/12£855
Wed 31/1207:20LHR - PHL
1 stop12h 50mIberia
Thu 8/119:50PHL - LHR
Nonstop7h 00mIberia
Deal found 29/12£869
Wed 31/1210:45LHR - PHL
2 stops17h 32mDelta
Fri 30/112:29PHL - LHR
2 stops16h 46mDelta
Deal found 30/12£877
Mon 29/1214:10LHR - PHL
1 stop14h 42mAmerican Airlines
Mon 12/119:50PHL - LHR
Nonstop7h 00mAmerican Airlines
Deal found 29/12£879
Tue 30/1208:40LCY - PHL
1 stop11h 55mMultiple Airlines
Sat 10/121:25PHL - LCY
1 stop10h 15mMultiple Airlines
Deal found 29/12£929
Wed 31/1209:10LCY - PHL
1 stop11h 50mAer Lingus
Thu 8/121:25PHL - LCY
1 stop15h 05mAer Lingus
Deal found 29/12£1,071
Wed 31/1206:30STN - PHL
1 stop14h 30mMultiple Airlines
Thu 8/116:35PHL - STN
2 stops12h 15mMultiple Airlines
Deal found 29/12£1,095

Find flight deals from London to Delaware

Keep the following information in mind while searching for London to Delaware flight deals. Data was last updated 31 December 2025.

Round-trip from

£500

One-way from

£211

Popular in

December

Cheapest in

February

Average price

£714
British Airways
  • British Airways
  • 15/1-30/1
  • Nonstop
  • 15h 15m total
  • London to Delaware
Search Deals
6/2
  • 6/2
  • 1 total stop
  • 15h 32m total
  • London to Delaware
Search Deals
Highest demand for flights based on searches. 6% potential increase in price (£27 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£11 potential savings vs. average return price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from London to Delaware that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 31 December 2025.
Use the filters below to find and compare flights from London to Delaware that are best for you.

Fly from

London

Fly to

Delaware

Route

Depart

Return

Price

LondonPhiladelphia

LCY - PHL

LCYPHL

London City

Wed 4/2

06:50-14:05

1 stop12h 15m

Philadelphia

Sun 8/2

21:25-21:25

2 stops19h 00m

£510

LondonPhiladelphia

LCY - PHL

LCYPHL

London City

Tue 13/1

08:40-15:35

1 stop11h 55m

Philadelphia

Tue 27/1

19:55-14:05

1 stop13h 10m

£511

LondonPhiladelphia

LHR - PHL

LHRPHL

London Heathrow

Thu 12/2

09:20-22:07

1 stop17h 47m

Philadelphia

Thu 19/2

14:52-06:55

1 stop11h 03m

£513

LondonPhiladelphia

LHR - PHL

LHRPHL

London Heathrow

Sun 1/2

10:35-13:50

Nonstop8h 15m

Philadelphia

Sun 8/2

19:50-07:50

Nonstop7h 00m

£517

LondonPhiladelphia

LHR - PHL

LHRPHL

London Heathrow

Thu 21/5

12:15-18:40

1 stop11h 25m

Philadelphia

Fri 29/5

10:05-10:00

1 stop18h 55m

£519

LondonPhiladelphia

LCY - PHL

LCYPHL

London City

Thu 5/2

07:50-19:27

2 stops16h 37m

Philadelphia

Mon 9/2

19:55-14:35

1 stop13h 40m

£525

LondonPhiladelphia

LCY - PHL

LCYPHL

London City

Mon 12/1

19:15-14:05

2 stops23h 50m

Philadelphia

Mon 19/1

19:55-14:35

1 stop13h 40m

£531

LondonPhiladelphia

LGW - PHL

LGWPHL

London Gatwick

Thu 22/1

11:45-14:05

2 stops31h 20m

Philadelphia

Mon 26/1

19:55-19:00

1 stop18h 05m

£537

LondonPhiladelphia

STN - PHL

STNPHL

London Stansted

Mon 12/1

06:00-22:46

3 stops21h 46m

Philadelphia

Mon 19/1

15:30-22:05

3 stops25h 35m

£541

LondonPhiladelphia

LCY - PHL

LCYPHL

London City

Thu 19/2

06:50-14:00

1 stop12h 10m

Philadelphia

Sun 22/2

21:20-12:40

1 stop10h 20m

£545

Flights are sorted by cheapest return flights first.

Deals found on 29/12

Showing 1-10 of 60 results
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Best time to book a flight from London to Delaware

Have a flexible travel schedule? Discover the best time to fly to Delaware from London 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 from London to Delaware
No data available for this route at this time. Please check back soon.

Related info for your journey

Find useful and relevant information for your journey from London to Delaware. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from London to Delaware?

    British Airways, JetBlue, and United Airlines can get you from London to Delaware in just under 11h 25m. Your travel time can differ by up to 6h 22m. London and Delaware are separated by a distance of 3533 mi. This flight may include one or multiple stops.

  • What are the most popular routes from London to Delaware?

    The most popular route from London to Delaware is London Heathrow - Philadelphia. You may also consider London Gatwick - Philadelphia or London City - Philadelphia.

  • Can I find deals for flights from London to Delaware that include hotel bookings?

    Yes. In addition to deals on London to Delaware flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from London to Delaware?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from London to Delaware.

  • Can I find deals for business class flights from London to Delaware?

    Yes. Cheapflights offers flight deals from London to Delaware by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for London to Delaware

See prices for flight routes from nearby airports that may be better suited for you.
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Heathrow to Newark flights
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London City to Los Angeles flights
Manchester to LaGuardia flights
Edinburgh to John F Kennedy Intl flights
Edinburgh to Newark flights
Heathrow to Denver flights
Heathrow to George Bush Intcntl flights
Luton to Miami flights
Stansted to Los Angeles flights
Heathrow to Ontario flights
Gatwick to Las Vegas flights
Heathrow to Nashville flights
Gatwick to Dallas/Fort Worth flights
Edinburgh to Boston flights
London City to Boston flights

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 London to Delaware?

Deals for London to 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 better, like price, airport, cabin class, and plenty of other options.

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

Millions of users choose and trust Cheapflights to book the best flight deals from London to 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 London to Delaware with no change fees?

Certainly. Search results for flights to Delaware from London 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 London to Delaware become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Delaware from London today and book when prices fit your budget.

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