How long is the flight from London to Delaware?

United Airlines, Lufthansa, and British Airways can get you from London to Delaware in just under 12h 20m. Your travel time can differ by up to 8h 10m. 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 Gatwick - Philadelphia or London City - Philadelphia.

What are the most popular airlines that fly from London to Delaware?

The most popular airlines flying from London to Delaware are Royal Jordanian, British Airways and Turkish Airlines. Something to consider prior to booking your flight.

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.

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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 3 September 2026.

Thu 17/906:15 -

1 stop16h 30m

Wed 30/922:10 -

Nonstop7h 10m

Deal found 2/9£597

Mon 19/1006:30 -

1 stop17h 25m

Mon 2/1117:40 -

1 stop9h 50m

Deal found 3/9£597

Sun 13/906:50 -

2 stops17h 04m

Sat 19/913:30 -

1 stop14h 00m

Deal found 3/9£597

Thu 3/1207:30 -

2 stops16h 20m

Tue 5/116:59 -

1 stop31h 56m

Deal found 3/9£598

Sat 12/914:00 -

1 stop15h 09m

Sun 27/917:45 -

1 stop35h 15m

Deal found 3/9£598

Thu 10/908:45 -

2 stops17h 47m

Thu 24/910:05 -

2 stops15h 30m

Deal found 3/9£599

Fri 23/1014:00 -

1 stop14h 43m

Thu 12/1110:37 -

1 stop15h 13m

Deal found 3/9£599

Sat 12/909:30 -

1 stop10h 17m

Sun 27/915:25 -

1 stop13h 35m

Deal found 3/9£600

Fri 4/914:00 -

1 stop34h 31m

Tue 10/1117:22 -

2 stops32h 33m

Deal found 3/9£600

Thu 1/1007:30 -

2 stops16h 12m

Sun 4/1015:25 -

1 stop13h 35m

Deal found 2/9£600

Thu 10/908:45 -

2 stops17h 47m

Fri 18/915:25 -

2 stops15h 25m

Deal found 3/9£601

Wed 30/913:00 -

Nonstop8h 00m

Wed 28/1020:25 -

Nonstop7h 25m

Deal found 3/9£602

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 3 September 2026.

Fri 23/1008:00 -

2 stops20h 30m

Fri 30/1010:30 -

1 stop16h 10m

Deal found 3/9£597

Wed 4/1109:50 -

1 stop30h 40m

Sun 8/1107:35 -

1 stop19h 40m

Deal found 2/9£602

Thu 24/906:30 -

1 stop14h 35m

Fri 9/1017:40 -

1 stop16h 00m

Deal found 2/9£613

Thu 19/1108:50 -

1 stop12h 20m

Mon 30/1118:35 -

Nonstop7h 00m

Deal found 30/8£614

Fri 23/1006:40 -

2 stops20h 27m

Fri 30/1009:20 -

3 stops25h 15m

Deal found 30/8£625

Mon 14/909:55 -

2 stops17h 26m

Mon 21/913:24 -

1 stop12h 21m

Deal found 31/8£625

Thu 19/1110:40 -

2 stops26h 40m

Mon 23/1113:25 -

3 stops26h 10m

Deal found 2/9£674

Tue 13/1009:30 -

1 stop10h 17m

Tue 20/1010:40 -

2 stops14h 55m

Deal found 29/8£612

Tue 3/1118:50 -

3 stops26h 31m

Tue 10/1117:05 -

2 stops20h 00m

Deal found 1/9£614

Wed 11/1110:35 -

Nonstop8h 05m

Wed 18/1118:35 -

Nonstop7h 00m

Deal found 1/9£618

Mon 14/909:55 -

2 stops17h 26m

Mon 28/906:00 -

1 stop19h 45m

Deal found 29/8£626

Wed 11/1107:05 -

3 stops22h 50m

Wed 18/1114:12 -

2 stops20h 48m

Deal found 30/8£634

Thu 8/1009:15 -

1 stop11h 50m

Sun 11/1017:40 -

1 stop19h 15m

Deal found 1/9£664

Mon 14/908:15 -

3 stops35h 32m

Mon 21/916:20 -

2 stops19h 30m

Deal found 30/8£617

Thu 1/1008:00 -

2 stops15h 42m

Mon 5/1015:08 -

2 stops13h 12m

Deal found 1/9£622

Thu 19/1110:40 -

2 stops26h 40m

Mon 30/1113:25 -

3 stops26h 10m

Deal found 30/8£686

Wed 4/1106:50 -

1 stop12h 10m

Thu 12/1120:50 -

1 stop11h 30m

Deal found 2/9£630

Mon 2/1110:40 -

2 stops39h 31m

Mon 16/1118:30 -

3 stops21h 05m

Deal found 30/8£686

Thu 8/1006:30 -

1 stop17h 25m

Sun 11/1020:25 -

1 stop11h 30m

Deal found 1/9£625

Fri 18/909:15 -

1 stop11h 50m

Thu 24/917:40 -

1 stop19h 15m

Deal found 1/9£691

Wed 4/1106:50 -

1 stop14h 20m

Sun 8/1120:50 -

1 stop10h 50m

Deal found 2/9£631

Wed 7/1016:25 -

2 stops35h 20m

Sun 11/1014:09 -

3 stops25h 16m

Deal found 1/9£686

Thu 8/1009:25 -

1 stop14h 30m

Sun 11/1020:25 -

1 stop10h 00m

Deal found 1/9£637

Wed 16/1206:50 -

1 stop14h 20m

Sat 16/121:10 -

1 stop10h 30m

Deal found 30/8£642

Mon 21/1216:35 -

2 stops31h 08m

Tue 26/108:40 -

2 stops20h 10m

Deal found 31/8£696

Mon 19/1007:00 -

1 stop11h 50m

Mon 2/1120:50 -

1 stop10h 50m

Deal found 3/9£645

Mon 14/914:00 -

1 stop24h 30m

Mon 21/905:15 -

1 stop23h 45m

Deal found 2/9£656

Fri 23/1010:35 -

2 stops27h 56m

Tue 27/1015:35 -

2 stops20h 10m

Deal found 29/8£698

Sat 27/211:25 -

1 stop31h 40m

Wed 3/321:10 -

1 stop18h 25m

Deal found 2/9£654

Thu 22/1008:00 -

2 stops19h 46m

Wed 28/1015:20 -

2 stops17h 35m

Deal found 1/9£663

Find flight deals from London to Delaware

Round-trip from	£595
One-way from	£348
Popular in	August
Cheapest in	January
Average price	£631

9/10-10/10
3 total stops
33h 38m total
London to Delaware

Search Deals

26/10-31/12
2 total stops
38h 40m total
London to Delaware

Search Deals

Highest demand for flights based on searches. 11% potential increase in price (£63 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

Sun 18/10

07:25-18:55

3 stops40h 30m

Philadelphia

Wed 31/12

00:00-06:00

Nonstop0h 00m

£367

LondonPhiladelphia

STN London Stansted - PHL Philadelphia

STNPHL

London Stansted

Wed 2/12

20:00-00:37

3 stops33h 37m

Philadelphia

Wed 31/12

00:00-06:00

Nonstop0h 00m

£369

LondonPhiladelphia

STN London Stansted - PHL Philadelphia

STNPHL

London Stansted

Tue 13/10

18:45-23:42

3 stops57h 57m

Philadelphia

Wed 31/12

00:00-06:00

Nonstop0h 00m

£373

LondonPhiladelphia

STN London Stansted - PHL Philadelphia

STNPHL

London Stansted

Sun 25/10

15:40-17:10

3 stops53h 30m

Philadelphia

Wed 31/12

00:00-06:00

Nonstop0h 00m

£379

LondonPhiladelphia

LTN London Luton - PHL Philadelphia

LTNPHL

London Luton

Thu 17/9

06:05-23:55

2 stops22h 50m

Philadelphia

Wed 31/12

00:00-06:00

Nonstop0h 00m

£391

LondonPhiladelphia

SEN London Southend - PHL Philadelphia

SENPHL

London Southend

Tue 13/10

20:25-18:55

3 stops51h 30m

Philadelphia

Wed 31/12

00:00-06:00

Nonstop0h 00m

£395

LondonPhiladelphia

LHR London Heathrow - PHL Philadelphia

LHRPHL

London Heathrow

Mon 30/11

15:30-16:05

1 stop29h 35m

Philadelphia

Wed 31/12

00:00-06:00

Nonstop0h 00m

£399

LondonPhiladelphia

LHR London Heathrow - PHL Philadelphia

LHRPHL

London Heathrow

Wed 18/11

06:30-14:00

1 stop12h 30m

Philadelphia

Wed 31/12

00:00-06:00

Nonstop0h 00m

£401

LondonPhiladelphia

LTN London Luton - PHL Philadelphia

LTNPHL

London Luton

Tue 13/10

21:50-18:55

3 stops50h 05m

Philadelphia

Wed 31/12

00:00-06:00

Nonstop0h 00m

£401

LondonPhiladelphia

LTN London Luton - PHL Philadelphia

LTNPHL

London Luton

Sun 13/9

18:10-23:12

3 stops34h 02m

Philadelphia

Wed 31/12

00:00-06:00

Nonstop0h 00m

£403

Flights are sorted by cheapest return flights first.

Deals found on 1/9

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.

STN-PHL

LHR-PHL

LCY-PHL

LGW-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

STN-PHL

LHR-PHL

LCY-PHL

LGW-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, Lufthansa, and British Airways can get you from London to Delaware in just under 12h 20m. Your travel time can differ by up to 8h 10m. 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

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Heathrow to LaGuardia flights

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Heathrow to Hobby flights

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Gatwick to Los Angeles flights

London City to Orlando flights

London City to Los Angeles flights

Heathrow to Baltimore flights

Heathrow to Tampa flights

Luton to Miami flights

Stansted to Los Angeles flights

Heathrow to George Bush Intcntl flights

Edinburgh to John F Kennedy Intl flights

London City to Boston flights

Edinburgh to Newark flights

Heathrow to Sky Harbor Intl flights

Gatwick to Las Vegas flights

Gatwick to Dallas/Fort Worth flights

Heathrow to Austin flights

Stansted to Boston flights

Heathrow to Nashville 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 26/10. 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 3 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 3 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 3 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 3 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 3 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 3 September 2026.

Last-minute flights from London to DelawareDiscover last-minute flight deals from London to Delaware. Data last updated 3 September 2026 and is based on user searches.

Discover last-minute flight deals from London to Delaware. Data last updated 3 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 3 September 2026.

Search for one-way flight options from London to Delaware. Find affordable one-way fares based on user searches. Data last updated 3 September 2026.

Find flight deals from London to Delaware

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Best time to book a flight from London to Delaware

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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 3 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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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 3 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 3 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 3 September 2026.

Last-minute flights from London to Delaware
Discover last-minute flight deals from London to Delaware. Data last updated 3 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 3 September 2026.