How long is the flight from London to Delaware?

United Airlines, British Airways, and Lufthansa can get you from London to Delaware in just under 10h 30m. Your travel time can differ by up to 4h 39m. London and Delaware are separated by a distance of 3533 mi. This flight may include one or multiple stops.

In terms of precipitation, rainfall in Delaware ranges from 73.0 - 108.0 inches per month. July is typically the wettest month, when rainfall can reach 108.0 mm. February is typically the driest time to visit Delaware when rainfall is around 73.0 mm.

If weather is an important factor for your trip to Delaware, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 25.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 0.0 C).

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 City - Philadelphia or London Gatwick - Philadelphia.

What is the cheapest time of day to fly from LON to DE?

When flying from London to Delaware, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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.

£348+ Cheap Flights from London to Delaware

Cheap flight deals from London to Delaware

Enter your travel dates to find the best prices.

Cheapest

Best

Direct

Last-minute

One-way

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 18 September 2026.

Wed 7/1009:50 -

1 stop14h 05m

Wed 21/1019:35 -

Nonstop7h 15m

Deal found 17/9£589

Tue 3/1108:40 -

2 stops20h 14m

Sun 8/1108:30 -

3 stops28h 20m

Deal found 18/9£589

Tue 6/1020:05 -

2 stops25h 00m

Sun 18/1017:40 -

2 stops14h 20m

Deal found 17/9£590

Thu 24/914:05 -

1 stop29h 42m

Thu 8/1007:00 -

1 stop18h 35m

Deal found 17/9£591

Tue 6/1006:55 -

2 stops14h 10m

Sun 18/1017:40 -

1 stop18h 00m

Deal found 17/9£592

Fri 23/1009:45 -

1 stop18h 07m

Wed 4/1118:35 -

Nonstop7h 00m

Deal found 15/9£594

Thu 29/1018:40 -

2 stops32h 30m

Thu 5/1117:40 -

2 stops19h 10m

Deal found 14/9£594

Thu 19/1112:05 -

1 stop11h 46m

Sat 28/1119:40 -

1 stop10h 10m

Deal found 15/9£595

Mon 21/909:15 -

Nonstop7h 55m

Mon 28/919:35 -

Nonstop7h 15m

Deal found 14/9£595

Wed 30/913:45 -

Nonstop7h 55m

Tue 6/1018:35 -

1 stop10h 45m

Deal found 15/9£596

Tue 6/1007:30 -

1 stop13h 35m

Sat 12/1206:00 -

1 stop19h 40m

Deal found 17/9£597

Mon 28/910:25 -

3 stops32h 10m

Mon 5/1015:30 -

2 stops19h 30m

Deal found 17/9£597

Best flights from London to Delaware
Discover carefully curated flight deals from London to Delaware that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 18 September 2026.

Sat 31/1010:25 -

1 stop15h 09m

Sat 7/1116:59 -

1 stop14h 01m

Deal found 16/9£594

Tue 6/1013:25 -

1 stop10h 30m

Wed 28/1018:40 -

1 stop12h 45m

Deal found 15/9£597

Sat 31/1007:35 -

1 stop13h 35m

Sat 7/1117:40 -

1 stop9h 25m

Deal found 16/9£598

Wed 7/1006:40 -

2 stops20h 42m

Sat 12/1211:10 -

3 stops24h 15m

Deal found 17/9£626

Wed 30/909:55 -

2 stops17h 26m

Wed 28/1012:32 -

2 stops14h 33m

Deal found 17/9£640

Fri 6/1116:40 -

2 stops33h 31m

Tue 10/1107:00 -

2 stops21h 50m

Deal found 13/9£663

Wed 30/907:30 -

1 stop13h 35m

Tue 6/1011:05 -

2 stops14h 50m

Deal found 15/9£598

Mon 2/1106:50 -

1 stop12h 10m

Mon 9/1120:50 -

1 stop10h 50m

Deal found 18/9£603

Thu 22/1009:25 -

1 stop14h 30m

Wed 4/1117:40 -

1 stop10h 35m

Deal found 15/9£609

Fri 2/1006:50 -

2 stops16h 52m

Sun 4/1015:25 -

1 stop10h 05m

Deal found 13/9£608

Fri 6/1110:40 -

2 stops39h 31m

Mon 9/1117:58 -

3 stops21h 37m

Deal found 16/9£670

Tue 6/1013:25 -

1 stop10h 30m

Thu 29/1019:35 -

Nonstop7h 00m

Deal found 14/9£619

Fri 2/1006:20 -

1 stop17h 35m

Sun 4/1020:25 -

1 stop10h 00m

Deal found 15/9£626

Sun 3/121:20 -

1 stop22h 55m

Wed 13/118:35 -

Nonstop7h 00m

Deal found 13/9£621

Thu 8/1017:30 -

3 stops27h 35m

Wed 14/1015:25 -

2 stops14h 35m

Deal found 14/9£631

Tue 3/1116:35 -

2 stops33h 36m

Sun 8/1117:58 -

2 stops16h 47m

Deal found 18/9£696

Mon 12/1010:25 -

2 stops17h 43m

Tue 3/1111:00 -

2 stops17h 00m

Deal found 15/9£808

Wed 11/1110:35 -

Nonstop8h 05m

Wed 18/1118:35 -

Nonstop7h 00m

Deal found 16/9£623

Thu 8/1022:05 -

3 stops23h 00m

Sun 18/1010:05 -

3 stops24h 35m

Deal found 14/9£633

Wed 7/1016:25 -

2 stops35h 20m

Wed 21/1015:26 -

2 stops24h 04m

Deal found 13/9£737

Wed 4/1106:50 -

1 stop12h 10m

Mon 9/1120:50 -

1 stop10h 50m

Deal found 13/9£625

Sun 29/1110:35 -

1 stop34h 35m

Sun 13/1217:40 -

1 stop9h 10m

Deal found 17/9£660

Wed 4/1106:50 -

1 stop12h 10m

Tue 10/1120:50 -

1 stop10h 50m

Deal found 13/9£625

Mon 15/216:35 -

2 stops34h 32m

Mon 8/309:54 -

3 stops29h 41m

Deal found 15/9£770

Sun 29/1108:40 -

1 stop12h 30m

Sun 13/1217:40 -

1 stop10h 30m

Deal found 17/9£661

Tue 9/206:50 -

1 stop12h 15m

Mon 15/221:10 -

1 stop19h 15m

Deal found 13/9£625

Mon 21/1221:35 -

3 stops26h 08m

Sun 3/109:29 -

3 stops30h 06m

Deal found 16/9£782

Fri 20/1108:30 -

1 stop12h 40m

Tue 1/1217:40 -

1 stop11h 40m

Deal found 15/9£675

Mon 8/206:50 -

1 stop12h 15m

Mon 15/221:10 -

1 stop19h 15m

Deal found 13/9£625

Mon 9/1116:35 -

2 stops33h 36m

Thu 19/1113:25 -

3 stops26h 10m

Deal found 18/9£807

Find flight deals from London to Delaware

Round-trip from	£589
One-way from	£348
Popular in	August
Cheapest in	January
Average price	£664

United Airlines
4/2-14/2
2 total stops
44h 53m total
London to Delaware

Search Deals

2/11-31/12
2 total stops
36h 30m total
London to Delaware

Search Deals

Highest demand for flights based on searches. 11% potential increase in price (£66 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease (£12 potential savings vs. average return price).

Search Deals

Average for round-trip flights in September 2026

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonPhiladelphia

STN London Stansted - PHL Philadelphia

STNPHL

London Stansted

Thu 10/12

21:45-16:10

1 stop23h 25m

Philadelphia

Wed 31/12

00:00-06:00

Nonstop0h 00m

£374

LondonPhiladelphia

STN London Stansted - PHL Philadelphia

STNPHL

London Stansted

Fri 6/11

06:45-16:10

1 stop14h 25m

Philadelphia

Wed 31/12

00:00-06:00

Nonstop0h 00m

£379

LondonPhiladelphia

STN London Stansted - PHL Philadelphia

STNPHL

London Stansted

Thu 17/12

06:45-16:10

1 stop14h 25m

Philadelphia

Wed 31/12

00:00-06:00

Nonstop0h 00m

£389

LondonPhiladelphia

LTN London Luton - PHL Philadelphia

LTNPHL

London Luton

Thu 17/12

06:15-16:10

1 stop14h 55m

Philadelphia

Wed 31/12

00:00-06:00

Nonstop0h 00m

£389

LondonPhiladelphia

SEN London Southend - PHL Philadelphia

SENPHL

London Southend

Thu 22/10

06:30-20:04

3 stops42h 34m

Philadelphia

Wed 31/12

00:00-06:00

Nonstop0h 00m

£391

LondonPhiladelphia

LTN London Luton - PHL Philadelphia

LTNPHL

London Luton

Tue 22/12

07:45-16:10

1 stop13h 25m

Philadelphia

Wed 31/12

00:00-06:00

Nonstop0h 00m

£403

LondonPhiladelphia

SEN London Southend - PHL Philadelphia

SENPHL

London Southend

Wed 11/11

07:00-16:10

2 stops38h 10m

Philadelphia

Wed 31/12

00:00-06:00

Nonstop0h 00m

£408

LondonPhiladelphia

LHR London Heathrow - PHL Philadelphia

LHRPHL

London Heathrow

Mon 16/11

09:20-17:08

1 stop12h 48m

Philadelphia

Wed 31/12

00:00-06:00

Nonstop0h 00m

£411

LondonPhiladelphia

LHR London Heathrow - PHL Philadelphia

LHRPHL

London Heathrow

Mon 2/11

09:20-17:08

1 stop12h 48m

Philadelphia

Wed 31/12

00:00-06:00

Nonstop0h 00m

£411

Fastest return journey

LondonPhiladelphia

LHR London Heathrow - PHL Philadelphia

LHRPHL

London Heathrow

Fri 30/10

09:20-17:08

1 stop11h 48m

Philadelphia

Wed 31/12

00:00-06:00

Nonstop0h 00m

£412

Flights are sorted by cheapest return flights first.

Deals found on 16/9

Showing 1-10 of 60 resultsSorted by cheapest first

...

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.

LGW-PHL

STN-PHL

LHR-PHL

SEN-PHL

LTN-PHL

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

LON-USDE

LGW-PHL

STN-PHL

LHR-PHL

SEN-PHL

No data available for this route at this time. Please check back soon.

Related info for your journey

How long is the flight from London to Delaware?
United Airlines, British Airways, and Lufthansa can get you from London to Delaware in just under 10h 30m. Your travel time can differ by up to 4h 39m. 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 City - Philadelphia or London Gatwick - 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

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Heathrow to John F Kennedy Intl flights

Gatwick to John F Kennedy Intl flights

Heathrow to LaGuardia flights

Stansted to John F Kennedy Intl flights

Gatwick to Newark flights

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Luton to John F Kennedy Intl flights

Gatwick to LaGuardia flights

London City to Newark flights

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Luton to Newark flights

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Gatwick to Miami flights

Manchester to Orlando flights

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Heathrow to Dulles Intl flights

Stansted to Los Angeles flights

Stansted to Miami flights

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Heathrow to Seattle flights

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London City to Los Angeles flights

Heathrow to Baltimore flights

Stansted to Orlando flights

Gatwick to San Francisco flights

London City to Orlando flights

Heathrow to Hobby flights

Heathrow to Atlanta flights

London City to San Francisco flights

Stansted to San Francisco flights

Heathrow to Ontario flights

Luton to Miami flights

Heathrow to George Bush Intcntl flights

Luton to Los Angeles flights

Heathrow to Fort Lauderdale flights

Gatwick to Las Vegas flights

Gatwick to Boston flights

Edinburgh to Newark flights

Gatwick to Fort Lauderdale flights

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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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Cheap flights from London to Delaware from £348

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/11. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from London to Delaware

Cheapest flights from London to DelawareExplore 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 18 September 2026.

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 18 September 2026.

Best flights from London to DelawareDiscover carefully curated flight deals from London to Delaware that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 18 September 2026.

Discover carefully curated flight deals from London to Delaware that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 18 September 2026.

Direct flights from London to DelawareExplore direct flight options from London to Delaware based on user searches, and compare prices and availability for your desired travel dates. Data last updated 18 September 2026.

Explore direct flight options from London to Delaware based on user searches, and compare prices and availability for your desired travel dates. Data last updated 18 September 2026.

Last-minute flights from London to DelawareDiscover last-minute flight deals from London to Delaware. Data last updated 18 September 2026 and is based on user searches.

Discover last-minute flight deals from London to Delaware. Data last updated 18 September 2026 and is based on user searches.

One-way flights from London to DelawareSearch for one-way flight options from London to Delaware. Find affordable one-way fares based on user searches. Data last updated 18 September 2026.

Search for one-way flight options from London to Delaware. Find affordable one-way fares based on user searches. Data last updated 18 September 2026.

Find flight deals from London to Delaware

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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.

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Related info for your journey

How long is the flight from London to Delaware?

What are the most popular routes from London to Delaware?

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

How can I find direct flights from London to Delaware?

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

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.

Alternative routes for London to Delaware

See prices for flight routes from nearby airports that may be better suited for you.

Complete your trip

Complete your trip to Delaware by adding a car hire and/or hotel booking to your travel itinerary.

Direct flights to United States

Book a non-stop flight to one of these other cities located in United States.

Search flights from London to Delaware by cabin class

Find flights from London to Delaware, based on your preferred cabin class, be it economy, premium economy, business, or first class.

London and Delaware flights

Browse other London and Delaware flight options. Last updated on 18 September 2026.

Popular flight searches

Check out other popular destinations found by fellow travellers in 2026

London to Delaware flights

Consider these flights travelling from London to Delaware.

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How does Cheapflights help users find flights from London to Delaware?

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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 18 September 2026.

Best flights from London to Delaware
Discover carefully curated flight deals from London to Delaware that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 18 September 2026.

Direct flights from London to Delaware
Explore direct flight options from London to Delaware based on user searches, and compare prices and availability for your desired travel dates. Data last updated 18 September 2026.

Last-minute flights from London to Delaware
Discover last-minute flight deals from London to Delaware. Data last updated 18 September 2026 and is based on user searches.

One-way flights from London to Delaware
Search for one-way flight options from London to Delaware. Find affordable one-way fares based on user searches. Data last updated 18 September 2026.