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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 2/3. Fares are subject to change and may not be available on all flights or dates of travel.
LON — ILG
28 Feb — 7 Mar1
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 29 January 2026.

Fri 13/314:00
LGW
-
PHL
1 stop21h 36m
Multiple Airlines
Fri 20/313:06
PHL
-
LGW
1 stop16h 54m
Multiple Airlines
Deal found 26/1£420
Thu 5/207:50
LHR
-
PHL
1 stop11h 15m
British Airways
Wed 18/219:40
PHL
-
LHR
Nonstop7h 10m
British Airways
Deal found 26/1£421
Mon 9/214:00
LGW
-
PHL
1 stop33h 47m
Multiple Airlines
Mon 16/205:30
PHL
-
LGW
1 stop23h 30m
Multiple Airlines
Deal found 26/1£421
Tue 3/206:30
LHR
-
PHL
2 stops20h 06m
United Airlines
Thu 19/220:02
PHL
-
LHR
1 stop29h 38m
United Airlines
Deal found 26/1£422
Thu 5/206:50
LHR
-
PHL
2 stops17h 04m
United Airlines
Thu 19/210:35
PHL
-
LHR
1 stop19h 15m
United Airlines
Deal found 26/1£423
Tue 3/206:50
LHR
-
PHL
2 stops17h 04m
United Airlines
Tue 10/210:10
PHL
-
LHR
1 stop16h 45m
United Airlines
Deal found 27/1£423
Thu 12/206:50
LHR
-
PHL
2 stops13h 00m
Air Canada
Thu 26/215:30
PHL
-
LHR
2 stops24h 05m
Air Canada
Deal found 27/1£424
Tue 3/207:50
LHR
-
PHL
1 stop11h 15m
British Airways
Wed 18/214:34
PHL
-
LHR
1 stop14h 06m
British Airways
Deal found 26/1£425
Fri 30/114:00
LGW
-
PHL
1 stop34h 48m
Multiple Airlines
Wed 4/220:25
PHL
-
LGW
1 stop32h 35m
Multiple Airlines
Deal found 27/1£425
Wed 11/207:50
LHR
-
PHL
1 stop11h 15m
British Airways
Sun 10/522:00
PHL
-
LHR
1 stop15h 55m
British Airways
Deal found 27/1£426
Mon 23/206:50
LHR
-
PHL
2 stops12h 57m
Air Canada
Sat 7/315:30
PHL
-
LHR
1 stop10h 40m
Air Canada
Deal found 27/1£426
Thu 5/314:00
LGW
-
PHL
1 stop22h 32m
Multiple Airlines
Mon 9/316:10
PHL
-
LGW
1 stop13h 50m
Multiple Airlines
Deal found 27/1£426

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 29 January 2026.

Round-trip from

£420

One-way from

£211

Popular in

December

Cheapest in

January

Average price

£466
13/3-20/3
  • 13/3-20/3
  • 2 total stops
  • 38h 30m total
  • London to Delaware
Search Deals
2/3
  • 2/3
  • 3 total stops
  • 47h 45m total
  • London to Delaware
Search Deals
Highest demand for flights based on searches. 3% potential increase in price (£13 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£10 potential savings vs. average return price).
Search Deals
Average for round-trip flights in January 2026
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 29 January 2026.
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

LGW - PHL

LGWPHL

London Gatwick

Mon 9/2

14:00-18:47

1 stop33h 47m

Philadelphia

Mon 16/2

05:30-10:00

1 stop23h 30m

£421

LondonPhiladelphia

LHR - PHL

LHRPHL

London Heathrow

Fri 13/3

08:30-21:09

2 stops16h 39m

Philadelphia

Fri 20/3

19:45-10:50

1 stop11h 05m

£423

LondonPhiladelphia

LHR - PHL

LHRPHL

London Heathrow

Thu 5/3

07:30-19:09

2 stops16h 39m

Philadelphia

Mon 9/3

12:15-11:15

1 stop19h 00m

£423

LondonPhiladelphia

LHR - PHL

LHRPHL

London Heathrow

Mon 11/5

13:25-18:55

1 stop10h 30m

Philadelphia

Mon 18/5

16:32-10:05

1 stop12h 33m

£425

LondonPhiladelphia

LHR - PHL

LHRPHL

London Heathrow

Fri 24/4

07:30-16:00

1 stop13h 30m

Philadelphia

Wed 6/5

11:32-06:55

2 stops14h 23m

£431

LondonPhiladelphia

LHR - PHL

LHRPHL

London Heathrow

Fri 24/4

09:30-16:00

1 stop11h 30m

Philadelphia

Fri 8/5

19:45-10:40

1 stop9h 55m

£431

LondonPhiladelphia

LGW - PHL

LGWPHL

London Gatwick

Thu 5/3

14:00-07:32

1 stop22h 32m

Philadelphia

Mon 9/3

08:06-10:00

2 stops21h 54m

£434

LondonPhiladelphia

LGW - PHL

LGWPHL

London Gatwick

Fri 13/3

14:00-07:36

1 stop21h 36m

Philadelphia

Fri 20/3

22:28-10:05

1 stop31h 37m

£435

LondonPhiladelphia

LHR - PHL

LHRPHL

London Heathrow

Fri 1/5

06:50-21:33

2 stops19h 43m

Philadelphia

Sun 3/5

19:45-10:40

1 stop9h 55m

£435

LondonPhiladelphia

LCY - PHL

LCYPHL

London City

Wed 11/2

06:50-14:05

1 stop12h 15m

Philadelphia

Mon 11/5

20:25-12:45

1 stop11h 20m

£441

Flights are sorted by cheapest return flights first.

Deals found on 28/1

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?

    United Airlines and British Airways can get you from London to Delaware in just under 10h 30m. Your travel time can differ by up to 6h 09m. London and Delaware are separated by a distance of 3533 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from London to Delaware one-way?

    For one-way options, check prices for Wizz Air. According to our data, you can fly for as low as £44. Users have also found prices from £49 and £113 on Wizz Air and Royal Jordanian, respectively.

  • 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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London City to Los Angeles flights
Edinburgh to John F Kennedy Intl flights
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Edinburgh to Newark flights
Heathrow to Dulles Intl flights
Manchester to LaGuardia flights
Stansted to Los Angeles flights
Gatwick to Boston flights
Heathrow to George Bush Intcntl flights
Heathrow to Ontario flights
Heathrow to Denver flights
London City to Orlando flights
Heathrow to Nashville flights
Heathrow to Baltimore flights
Stansted to Orlando flights
Gatwick to Dallas/Fort Worth flights
Gatwick to San Francisco flights
Heathrow to Austin 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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