How many flights depart from London to Delaware on average per week?

The number of flights available between London and Delaware is 100 per week as of August 2025. The most frequent departure day is Mon, with 15% of weekly flights leaving on this day.

When did momondo last update prices for flights from London to Delaware?

Prices for flights from London to Delaware are refreshed on a daily basis.

How many operators does momondo search for flights from London to Delaware?

As of August 2025, there are 11 operators available to choose from for flights from London to Delaware.

How old do you have to be to fly from London to Delaware?

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from London to Delaware.

What documentation or ID do you need to fly to Delaware?

The required travel and health documents for your Delaware trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Delaware. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

£195 Cheap Flights from London to Delaware in 2025

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Find the cheapest flights from London to Delaware

Round-trip

One-way

Last minute

Direct

Cheap return flights

14:00 - 23:59LGW-PHL

14h 59m1 stop

20:30 - 10:00PHL-LGW

32h 30m1 stop

£308

Find Deal

Thu, 2 Oct - Mon, 6 Oct

14:00 - 23:59LGW-PHL

14h 59m1 stop

20:30 - 10:10PHL-LGW

32h 40m1 stop

£326

Find Deal

Thu, 11 Sep - Sat, 13 Sep

12:10 - 09:40LGW-PHL

26h 30m1 stop

10:20 - 09:35PHL-LGW

18h 15m1 stop

£386JetBlue

Find Deal

Wed, 27 Aug - Tue, 16 Sep

12:10 - 09:40LGW-PHL

26h 30m1 stop

15:10 - 09:35PHL-LGW

13h 25m1 stop

£407JetBlue

Find Deal

Wed, 27 Aug - Wed, 3 Sep

12:10 - 21:50LGW-PHL

14h 40m1 stop

15:55 - 09:35PHL-LGW

12h 40m1 stop

£422Icelandair

Find Deal

Thu, 11 Sep - Thu, 18 Sep

09:30 - 16:00LHR-PHL

11h 30m1 stop

17:35 - 09:40PHL-LHR

11h 05m1 stop

£430Lufthansa

Find Deal

Mon, 8 Sep - Mon, 15 Sep

12:10 - 21:50LGW-PHL

14h 40m1 stop

10:20 - 09:35PHL-LGW

18h 15m1 stop

£434Icelandair

Find Deal

Thu, 11 Sep - Thu, 18 Sep

18:40 - 16:00LHR-PHL

26h 20m2 stops

17:35 - 13:00PHL-LHR

14h 25m2 stops

£441SWISS

Find Deal

Mon, 8 Sep - Mon, 15 Sep

19:10 - 16:00LHR-PHL

25h 50m2 stops

15:25 - 21:00PHL-LHR

48h 35m2 stops

£450Lufthansa

Find Deal

Thu, 11 Sep - Sat, 13 Sep

20:05 - 16:00LHR-PHL

24h 55m2 stops

17:35 - 11:25PHL-LHR

12h 50m2 stops

£466SWISS

Find Deal

Mon, 8 Sep - Mon, 15 Sep

Aer Lingus flights from London to Delaware

Our best Aer Lingus deals on London to Delaware flight tickets

Aer Lingus

1 Sept

LHR13:25London Heathrow

10h 35m

1 stop

PHL19:00Philadelphia

10 Sept

PHL20:30Philadelphia

9h 40m

1 stop

LHR11:10London Heathrow

£443

Find similar

Aer Lingus

6 Aug

LCY09:05London City

14h 55m

1 stop

PHL19:00Philadelphia

2 Sept

PHL18:50Philadelphia

10h 30m

1 stop

LCY10:20London City

£909

Find similar

American Airlines flights from London to Delaware

Our best American Airlines deals on London to Delaware flight tickets

American Airlines

24 Sept

LGW15:05London Gatwick

28h 27m

2 stops

PHL14:32Philadelphia

28 Sept

PHL08:22Philadelphia

43h 13m

2 stops

LGW08:35London Gatwick

£475

Find similar

American Airlines

24 Sept

LGW15:05London Gatwick

21h 38m

2 stops

PHL07:43Philadelphia

28 Sept

PHL08:22Philadelphia

43h 13m

2 stops

LGW08:35London Gatwick

£478

Find similar

American Airlines

24 Sept

LGW15:05London Gatwick

26h 47m

2 stops

PHL12:52Philadelphia

28 Sept

PHL19:54Philadelphia

29h 41m

1 stop

LGW06:35London Gatwick

£479

Find similar

Fly from

Fly to

Route

Depart

Return

Price

LondonPhiladelphia

LGW - PHL

LGWPHL

London Gatwick

Thu 2/10

14:00-23:59

1 stop14h 59m

Philadelphia

Mon 6/10

20:30-10:00

1 stop32h 30m

£308

LondonPhiladelphia

LGW - PHL

LGWPHL

London Gatwick

Thu 11/9

14:00-23:59

1 stop14h 59m

Philadelphia

Sat 13/9

20:30-10:10

1 stop32h 40m

£326

LondonPhiladelphia

LGW - PHL

LGWPHL

London Gatwick

Wed 27/8

12:10-09:40

1 stop26h 30m

Philadelphia

Tue 16/9

10:20-09:35

1 stop18h 15m

£386

LondonPhiladelphia

LGW - PHL

LGWPHL

London Gatwick

Wed 27/8

12:10-09:40

1 stop26h 30m

Philadelphia

Wed 3/9

15:10-09:35

1 stop13h 25m

£407

LondonPhiladelphia

LGW - PHL

LGWPHL

London Gatwick

Thu 11/9

12:10-21:50

1 stop14h 40m

Philadelphia

Thu 18/9

15:55-09:35

1 stop12h 40m

£422

LondonPhiladelphia

LHR - PHL

LHRPHL

London Heathrow

Mon 8/9

09:30-16:00

1 stop11h 30m

Philadelphia

Mon 15/9

17:35-09:40

1 stop11h 05m

£430

LondonPhiladelphia

LGW - PHL

LGWPHL

London Gatwick

Thu 11/9

12:10-21:50

1 stop14h 40m

Philadelphia

Thu 18/9

10:20-09:35

1 stop18h 15m

£434

LondonPhiladelphia

LHR - PHL

LHRPHL

London Heathrow

Mon 8/9

18:40-16:00

2 stops26h 20m

Philadelphia

Mon 15/9

17:35-13:00

2 stops14h 25m

£441

LondonPhiladelphia

LHR - PHL

LHRPHL

London Heathrow

Thu 11/9

19:10-16:00

2 stops25h 50m

Philadelphia

Sat 13/9

15:25-21:00

2 stops48h 35m

£450

LondonPhiladelphia

LHR - PHL

LHRPHL

London Heathrow

Mon 8/9

20:05-16:00

2 stops24h 55m

Philadelphia

Mon 15/9

17:35-11:25

2 stops12h 50m

£466

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from London to Delaware

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Other information

What is the cheapest month to fly to Delaware?

In general, February is the cheapest month to fly from London to Delaware. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around £501. If you’re not able to fly to Delaware in February, then September is your next best option. Flight prices from London to Delaware during September average around £512.

What is the cheapest day to depart on your flight to Delaware?

On average, the least expensive day to fly to Delaware from London is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as £609. However, this price may fluctuate depending on the airline, the season, and holidays. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from London to Delaware for around £669.

What is the cheapest time of day to depart on your flight to Delaware?

Our most recent data shows that the best time of day to fly to Delaware is in the afternoon. Flights from London to Delaware during this time can be as low as £506. In contrast, the most expensive time of day to depart to Delaware is at midday when prices are around £642.

How far in advance should I book a flight to Delaware?

You are more likely to see cheaper flights to Delaware from London when booking weeks ahead of your departure date. In general, you can expect to find flights to Delaware for around £569 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Delaware from London for as low as £518 on momondo.

Cheap London to Delaware flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from London to Delaware

Best price found	£195
Fastest flight time	10h 20m
Direct flights	Every day
Airports in Delaware	1 airport

The best one-way flight to Delaware from London in the past 72 hours is £195. The best return flight deal from London to Delaware found on momondo in the last 72 hours is £308.

The fastest flight from London to Delaware takes 10h 20m

Direct flights go from London to Delaware every day.

There is 1 airport near Delaware: Philadelphia (PHL)

Search flight deals

When did momondo last update prices for flights from London to Delaware?
Prices for flights from London to Delaware are refreshed on a daily basis.
How many operators does momondo search for flights from London to Delaware?
As of August 2025, there are 11 operators available to choose from for flights from London to Delaware.
How old do you have to be to fly from London to Delaware?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from London to Delaware.
What documentation or ID do you need to fly to Delaware?
The required travel and health documents for your Delaware trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Delaware. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Why use momondo?

Why should I use momondo to find a flight deal from London to Delaware?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Delaware from London.

Can I find flights from London to Delaware with flexible booking policies on momondo?

All flight searches from London to Delaware on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from London to Delaware?

Once you have performed a search for London to Delaware flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from London to Delaware right now. Can momondo alert me if prices change?

Price alerts on flights to Delaware from London are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.