What is the cheapest airline that flies from United Kingdom to Delaware?

British Airways, Lufthansa, and JetBlue are the most popular carriers operating from United Kingdom to Delaware

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

As of September 2026, 113 flights take off from United Kingdom and land in Delaware each week. The most common flight departure day for this route is Fri, with 17% of weekly flights taking off on this day.

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

Prices for flights from United Kingdom to Delaware are updated daily.

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

There are 7 operators available for flights from United Kingdom to Delaware as of September 2026.

How old do you have to be to fly from United Kingdom 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 United Kingdom to Delaware.

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

The travel and health documents required for your trip to Delaware can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Delaware. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

£272 Cheap Flights from the United Kingdom to Delaware in 2026

Find the cheapest flights from the United Kingdom to Delaware

Return

One-way

Last minute

Direct

Recent return flight deals from the United Kingdom to Delaware

Enter your travel dates to find the best prices.

09:30 - 16:10MAN Manchester-PHL Philadelphia

11h 40m1 stop Dublin

17:40 - 15:10PHL Philadelphia-MAN Manchester

16h 30m1 stop Dublin

£437Multiple Airlines

Thu, 5 Nov - Fri, 13 Nov

07:25 - 16:10MAN Manchester-PHL Philadelphia

13h 45m1 stop Dublin

17:40 - 07:50PHL Philadelphia-MAN Manchester

9h 10m1 stop Dublin

£442Multiple Airlines

Mon, 2 Nov - Sun, 8 Nov

08:25 - 18:55BRS Bristol-PHL Philadelphia

15h 30m1 stop Dublin

17:40 - 14:50PHL Philadelphia-BRS Bristol

16h 10m1 stop Dublin

£516Aer Lingus

Thu, 22 Oct - Thu, 5 Nov

09:10 - 18:55MAN Manchester-PHL Philadelphia

14h 45m1 stop Dublin

20:25 - 11:00PHL Philadelphia-MAN Manchester

9h 35m1 stop Dublin

£518Aer Lingus

Mon, 5 Oct - Sun, 18 Oct

13:25 - 18:55LHR London Heathrow-PHL Philadelphia

10h 30m1 stop Dublin

18:45 - 06:50PHL Philadelphia-LHR London Heathrow

7h 05mdirect

£585British Airways

Wed, 7 Oct - Wed, 14 Oct

07:30 - 16:05LHR London Heathrow-PHL Philadelphia

13h 35m1 stop Frankfurt am Main

18:46 - 05:55PHL Philadelphia-LHR London Heathrow

30h 09m1 stop Chicago O'Hare Intl

£586United Airlines

Thu, 12 Nov - Sun, 15 Nov

07:30 - 16:05LHR London Heathrow-PHL Philadelphia

13h 35m1 stop Frankfurt am Main

16:59 - 05:55PHL Philadelphia-LHR London Heathrow

31h 56m1 stop Chicago O'Hare Intl

£586United Airlines

Sun, 8 Nov - Sun, 15 Nov

08:40 - 09:32LHR London Heathrow-PHL Philadelphia

29h 52m1 stop Boston Logan Intl

17:58 - 06:55PHL Philadelphia-LHR London Heathrow

31h 57m1 stop Boston Logan Intl

£588JetBlue

Thu, 22 Oct - Sun, 8 Nov

08:40 - 09:32LHR London Heathrow-PHL Philadelphia

29h 52m1 stop Boston Logan Intl

10:27 - 06:55PHL Philadelphia-LHR London Heathrow

15h 28m1 stop Boston Logan Intl

£589JetBlue

Sun, 18 Oct - Mon, 2 Nov

13:00 - 16:00LHR London Heathrow-PHL Philadelphia

8h 00mdirect

20:25 - 11:10PHL Philadelphia-LHR London Heathrow

9h 45m1 stop Dublin

£591British Airways

Wed, 23 Sep - Tue, 29 Sep

Recent last minute flight deals from the United Kingdom to Delaware

Enter your travel dates to find the best prices.

09:15 - 12:10LHR London Heathrow-PHL Philadelphia

7h 55mdirect

18:30 - 10:20PHL Philadelphia-LHR London Heathrow

10h 50m1 stop Dublin

£592British Airways

Wed, 16 Sep - Mon, 21 Sep

07:30 - 16:05LHR London Heathrow-PHL Philadelphia

13h 35m1 stop Frankfurt am Main

15:25 - 10:00PHL Philadelphia-LHR London Heathrow

13h 35m1 stop Montreal Pierre Elliott Trudeau Intl

£595Multiple Airlines

Mon, 14 Sep - Mon, 21 Sep

08:00 - 17:54LHR London Heathrow-PHL Philadelphia

14h 54m1 stop Chicago O'Hare Intl

15:25 - 10:00PHL Philadelphia-LHR London Heathrow

13h 35m1 stop Montreal Pierre Elliott Trudeau Intl

£596Multiple Airlines

Thu, 17 Sep - Sun, 20 Sep

10:05 - 16:45LHR London Heathrow-PHL Philadelphia

11h 40m1 stop Boston Logan Intl

18:30 - 10:20PHL Philadelphia-LHR London Heathrow

10h 50m1 stop Dublin

£596British Airways

Wed, 16 Sep - Mon, 21 Sep

06:50 - 21:27LHR London Heathrow-PHL Philadelphia

19h 37m2 stops Brussels Bruxelles-National Chicago O'Hare Intl

15:08 - 06:55PHL Philadelphia-LHR London Heathrow

10h 47m1 stop Washington, D.C. Dulles Intl

£598United Airlines

Fri, 18 Sep - Fri, 25 Sep

06:50 - 19:29LHR London Heathrow-PHL Philadelphia

17h 39m2 stops Brussels Bruxelles-National Chicago O'Hare Intl

15:05 - 06:55PHL Philadelphia-LHR London Heathrow

10h 50m1 stop Washington, D.C. Dulles Intl

£598United Airlines

Thu, 17 Sep - Wed, 23 Sep

12:20 - 17:45LHR London Heathrow-PHL Philadelphia

34h 25m1 stop Madrid Barajas

18:45 - 06:50PHL Philadelphia-LHR London Heathrow

7h 05mdirect

£604Iberia

Mon, 14 Sep - Mon, 21 Sep

09:15 - 12:10LHR London Heathrow-PHL Philadelphia

7h 55mdirect

22:10 - 10:20PHL Philadelphia-LHR London Heathrow

7h 10mdirect

£614Finnair

Mon, 14 Sep - Mon, 21 Sep

06:15 - 17:45LHR London Heathrow-PHL Philadelphia

16h 30m1 stop Madrid Barajas

18:45 - 06:50PHL Philadelphia-LHR London Heathrow

7h 05mdirect

£621Iberia

Thu, 17 Sep - Wed, 23 Sep

09:15 - 12:10LHR London Heathrow-PHL Philadelphia

7h 55mdirect

17:49 - 12:15PHL Philadelphia-LHR London Heathrow

13h 26m1 stop Chicago O'Hare Intl

£624Finnair

Fri, 18 Sep - Fri, 25 Sep

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Aer Lingus flights from United Kingdom to Delaware

Our best Aer Lingus deals on United Kingdom to Delaware flight tickets

Aer Lingus

22 Oct

BRS08:25Bristol

15h 30m

1 stop

PHL18:55Philadelphia

5 Nov

PHL17:40Philadelphia

16h 10m

1 stop

BRS14:50Bristol

£516

Aer Lingus

5 Oct

MAN09:10Manchester

14h 45m

1 stop

PHL18:55Philadelphia

18 Oct

PHL20:25Philadelphia

9h 35m

1 stop

MAN11:00Manchester

£518

Aer Lingus

5 Oct

MAN09:10Manchester

14h 45m

1 stop

PHL18:55Philadelphia

20 Oct

PHL20:25Philadelphia

9h 35m

1 stop

MAN11:00Manchester

£519

Finnair flights from United Kingdom to Delaware

Our best Finnair deals on United Kingdom to Delaware flight tickets

Finnair

1 Oct

LHR09:15London Heathrow

7h 55m

PHL12:10Philadelphia

4 Oct

PHL17:49Philadelphia

12h 01m

1 stop

LHR10:50London Heathrow

£604

Finnair

17 Nov

EDI11:05Edinburgh Turnhouse

8h 50m

PHL14:55Philadelphia

23 Nov

PHL18:35Philadelphia

10h 35m

1 stop

EDI10:10Edinburgh Turnhouse

£613

Finnair

14 Sept

LHR09:15London Heathrow

7h 55m

PHL12:10Philadelphia

21 Sept

PHL22:10Philadelphia

7h 10m

LHR10:20London Heathrow

£614

momondo Fare Finder

Use the filters below to find and compare flights from the United Kingdom to Delaware that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

ManchesterPhiladelphia

MAN Manchester - PHL Philadelphia

MANPHL

Manchester

Thu 5/11

09:30-16:10

1 stop11h 40m

Philadelphia

Fri 13/11

17:40-15:10

1 stop16h 30m

£437

ManchesterPhiladelphia

MAN Manchester - PHL Philadelphia

MANPHL

Manchester

Mon 2/11

07:25-16:10

1 stop13h 45m

Philadelphia

Sun 8/11

17:40-07:50

1 stop9h 10m

£442

BristolPhiladelphia

BRS Bristol - PHL Philadelphia

BRSPHL

Bristol

Thu 22/10

08:25-18:55

1 stop15h 30m

Philadelphia

Thu 5/11

17:40-14:50

1 stop16h 10m

£516

ManchesterPhiladelphia

MAN Manchester - PHL Philadelphia

MANPHL

Manchester

Mon 5/10

09:10-18:55

1 stop14h 45m

Philadelphia

Sun 18/10

20:25-11:00

1 stop9h 35m

£518

Fastest return journey

LondonPhiladelphia

LHR London Heathrow - PHL Philadelphia

LHRPHL

London Heathrow

Wed 7/10

13:25-18:55

1 stop10h 30m

Philadelphia

Wed 14/10

18:45-06:50

Nonstop7h 05m

£585

LondonPhiladelphia

LHR London Heathrow - PHL Philadelphia

LHRPHL

London Heathrow

Thu 12/11

07:30-16:05

1 stop13h 35m

Philadelphia

Sun 15/11

18:46-05:55

1 stop30h 09m

£586

LondonPhiladelphia

LHR London Heathrow - PHL Philadelphia

LHRPHL

London Heathrow

Sun 8/11

07:30-16:05

1 stop13h 35m

Philadelphia

Sun 15/11

16:59-05:55

1 stop31h 56m

£586

LondonPhiladelphia

LHR London Heathrow - PHL Philadelphia

LHRPHL

London Heathrow

Thu 22/10

08:40-09:32

1 stop29h 52m

Philadelphia

Sun 8/11

17:58-06:55

1 stop31h 57m

£588

LondonPhiladelphia

LHR London Heathrow - PHL Philadelphia

LHRPHL

London Heathrow

Sun 18/10

08:40-09:32

1 stop29h 52m

Philadelphia

Mon 2/11

10:27-06:55

1 stop15h 28m

£589

LondonPhiladelphia

LHR London Heathrow - PHL Philadelphia

LHRPHL

London Heathrow

Wed 23/9

13:00-16:00

Nonstop8h 00m

Philadelphia

Tue 29/9

20:25-11:10

1 stop9h 45m

£591

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 United Kingdom 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 day to depart on your flight to Delaware?

On average, the least expensive day to fly to Delaware from United Kingdom is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as £644. However, this price may fluctuate depending on the airline, the season, and holidays. When flying out on a Saturday, the most expensive travel day of the week, you can expect to see flight prices from United Kingdom to Delaware for around £697.

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 United Kingdom to Delaware during this time can be as low as £673. In contrast, the most expensive time of day to depart to Delaware is at midday when prices are around £676.

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

You are more likely to see cheaper flights to Delaware from United Kingdom when booking weeks ahead of your departure date. In general, you can expect to find flights to Delaware for around £666 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 United Kingdom for as low as £570 on momondo.

Cheap United Kingdom to Delaware flight deals and tips

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

Best price found	£272
Fastest flight time	7h 20m
Direct flights	Every day
Airports in Delaware	17 airports

The best one-way flight to Delaware from United Kingdom in the past 72 hours is £272. The best return flight deal from United Kingdom to Delaware found on momondo in the last 72 hours is £437.

The fastest flight from United Kingdom to Delaware takes 7h 20m

Direct flights go from United Kingdom to Delaware every day.

There are 17 airports in Delaware. From United Kingdom there are direct flights to Philadelphia (PHL).

Search flight deals

Frequently asked questions about flying from the United Kingdom to Delaware

When did momondo last update prices for flights from United Kingdom to Delaware?
Prices for flights from United Kingdom to Delaware are updated daily.
How many operators does momondo search for flights from United Kingdom to Delaware?
There are 7 operators available for flights from United Kingdom to Delaware as of September 2026.
How old do you have to be to fly from United Kingdom 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 United Kingdom to Delaware.
What documentation or ID do you need to fly to Delaware?
The travel and health documents required for your trip to Delaware can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Delaware. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Why use momondo?

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

Finding the right flight to Delaware from United Kingdom is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Delaware quick and easy, saving you time and money.

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

Yes. momondo enables you to select and highlight flights to Delaware from United Kingdom with this policy.

How can momondo help me find flights from United Kingdom to Delaware?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from United Kingdom to Delaware.

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

Price alerts on flights to Delaware from United Kingdom 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.