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

The number of flights available between London and Delaware is 55 per week as of March 2026. The most frequent departure day is Mon, with 18% of weekly flights leaving on this day.

What is the cheapest airline that flies from London to Delaware?

British Airways, JetBlue, and Delta are the most popular carriers operating from London to Delaware

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 March 2026, there are 9 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.

£263 Cheap Flights from London to Delaware in 2026

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Find the cheapest flights from London to Delaware

Round-trip

One-way

Last minute

Direct

Cheap return flights

Enter your travel dates to find the best prices.

12:20 - 08:31

LGW

PHL

25h 11m

1 stop

09:12 - 09:35

PHL

LGW

19h 23m

1 stop

£524JetBlue

Wed, 3 Jun - Mon, 15 Jun

08:40 - 07:35

LHR

PHL

27h 55m

1 stop

18:33 - 06:30

PHL

LHR

30h 57m

1 stop

£526JetBlue

Wed, 13 May - Wed, 20 May

08:40 - 17:38

LHR

PHL

13h 58m

1 stop

06:00 - 06:30

PHL

LHR

19h 30m

1 stop

£527JetBlue

Wed, 29 Apr - Tue, 12 May

12:15 - 18:54

LHR

PHL

11h 39m

1 stop

19:45 - 10:40

PHL

LHR

9h 55m

1 stop

£534United Airlines

Fri, 17 Apr - Sun, 19 Apr

14:00 - 10:38

LGW

PHL

25h 38m

1 stop

07:30 - 10:00

PHL

LGW

21h 30m

1 stop

£543Multiple Airlines

Mon, 20 Apr - Mon, 27 Apr

14:00 - 08:56

LGW

PHL

23h 56m

1 stop

07:30 - 10:00

PHL

LGW

21h 30m

1 stop

£544Multiple Airlines

Sun, 19 Apr - Sun, 26 Apr

09:15 - 16:05

LCY

PHL

11h 50m

1 stop

17:40 - 17:55

PHL

LCY

19h 15m

1 stop

£618Lufthansa

Wed, 6 May - Wed, 13 May

09:15 - 16:05

LCY

PHL

11h 50m

1 stop

17:40 - 17:55

PHL

LCY

19h 15m

1 stop

£622Lufthansa

Wed, 29 Apr - Tue, 12 May

09:50 - 17:40

LCY

PHL

12h 50m

1 stop

19:45 - 15:15

PHL

LCY

14h 30m

1 stop

£658Iberia

Wed, 6 May - Mon, 11 May

09:35 - 17:40

LCY

PHL

13h 05m

1 stop

20:15 - 15:15

PHL

LCY

14h 00m

1 stop

£660Iberia

Tue, 21 Apr - Tue, 28 Apr

Air Canada flights from London to Delaware

Our best Air Canada deals on London to Delaware flight tickets

Air Canada

6 May

LHR08:40London Heathrow

17h 53m

2 stops

PHL21:33Philadelphia

13 May

PHL10:25Philadelphia

29h 35m

2 stops

LHR21:00London Heathrow

£556

Air Canada

20 Apr

LHR08:40London Heathrow

19h 03m

2 stops

PHL22:43Philadelphia

27 Apr

PHL16:25Philadelphia

23h 35m

2 stops

LHR21:00London Heathrow

£563

Air Canada

20 Apr

LHR08:40London Heathrow

19h 03m

2 stops

PHL22:43Philadelphia

27 Apr

PHL16:25Philadelphia

23h 35m

2 stops

LHR21:00London Heathrow

£563

American Airlines flights from London to Delaware

Our best American Airlines deals on London to Delaware flight tickets

American Airlines

22 Apr

LHR09:15London Heathrow

7h 55m

PHL12:10Philadelphia

29 Apr

PHL13:42Philadelphia

11h 33m

1 stop

LHR06:15London Heathrow

£560

American Airlines

27 Apr

LHR13:10London Heathrow

12h 48m

1 stop

PHL20:58Philadelphia

6 May

PHL13:42Philadelphia

11h 33m

1 stop

LHR06:15London Heathrow

£566

American Airlines

5 May

LHR09:15London Heathrow

7h 55m

PHL12:10Philadelphia

25 May

PHL13:53Philadelphia

11h 22m

1 stop

LHR06:15London Heathrow

£573

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

LondonPhiladelphia

LGW - PHL

LGWPHL

London Gatwick

Wed 3/6

12:20-08:31

1 stop25h 11m

Philadelphia

Mon 15/6

09:12-09:35

1 stop19h 23m

£524

LondonPhiladelphia

LHR - PHL

LHRPHL

London Heathrow

Wed 13/5

08:40-07:35

1 stop27h 55m

Philadelphia

Wed 20/5

18:33-06:30

1 stop30h 57m

£526

LondonPhiladelphia

LHR - PHL

LHRPHL

London Heathrow

Wed 29/4

08:40-17:38

1 stop13h 58m

Philadelphia

Tue 12/5

06:00-06:30

1 stop19h 30m

£527

Fastest return journey

LondonPhiladelphia

LHR - PHL

LHRPHL

London Heathrow

Fri 17/4

12:15-18:54

1 stop11h 39m

Philadelphia

Sun 19/4

19:45-10:40

1 stop9h 55m

£534

LondonPhiladelphia

LGW - PHL

LGWPHL

London Gatwick

Mon 20/4

14:00-10:38

1 stop25h 38m

Philadelphia

Mon 27/4

07:30-10:00

1 stop21h 30m

£543

LondonPhiladelphia

LGW - PHL

LGWPHL

London Gatwick

Sun 19/4

14:00-08:56

1 stop23h 56m

Philadelphia

Sun 26/4

07:30-10:00

1 stop21h 30m

£544

LondonPhiladelphia

LCY - PHL

LCYPHL

London City

Wed 6/5

09:15-16:05

1 stop11h 50m

Philadelphia

Wed 13/5

17:40-17:55

1 stop19h 15m

£618

LondonPhiladelphia

LCY - PHL

LCYPHL

London City

Wed 29/4

09:15-16:05

1 stop11h 50m

Philadelphia

Tue 12/5

17:40-17:55

1 stop19h 15m

£622

LondonPhiladelphia

LCY - PHL

LCYPHL

London City

Wed 6/5

09:50-17:40

1 stop12h 50m

Philadelphia

Mon 11/5

19:45-15:15

1 stop14h 30m

£658

LondonPhiladelphia

LCY - PHL

LCYPHL

London City

Tue 21/4

09:35-17:40

1 stop13h 05m

Philadelphia

Tue 28/4

20:15-15:15

1 stop14h 00m

£660

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

Airlines

Other information

What is the cheapest month to fly to Delaware?

In general, September 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 £500. If you’re not able to fly to Delaware in September, then May is your next best option. Flight prices from London to Delaware during May average around £531.

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 Wednesday. momondo users have found tickets for Wednesday departures for as low as £606. 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 £671.

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 morning. Flights from London to Delaware during this time can be as low as £625. In contrast, the most expensive time of day to depart to Delaware is at midday when prices are around £634.

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 £573 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

Fastest flight time	7h 50m
Direct flights	Tue, Wed, Thu, Fri, Sat and Sun
Airports in Delaware	17 airports

The fastest flight from London to Delaware takes 7h 50m

Direct flights go from London to Delaware on Tuesday, Wednesday, Thursday, Friday, Saturday and Sunday. There are no airlines offering direct flights..

There are 17 airports in Delaware. From London there are direct flights to 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 March 2026, there are 9 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.