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Cheap flights from the United Kingdom to Delaware from £175

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 15/1. Fares are subject to change and may not be available on all flights or dates of travel.
LHR — ILG
4 Jan — 11 Jan1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from United Kingdom to Delaware

Enter your travel dates to find the best prices.

Cheapest flights from United Kingdom to Delaware
Explore the most affordable flight options available from United Kingdom to Delaware. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 5 December 2025.

Thu 11/1214:45LHR - PHL
1 stop14h 14mFinnair
Sat 13/1221:20PHL - LHR
1 stop28h 40mFinnair
Deal found 1/12£543
Tue 16/1206:35LHR - PHL
2 stops14h 30mLufthansa
Thu 15/117:40PHL - LHR
1 stop14h 10mLufthansa
Deal found 2/12£549
Mon 29/1208:15LHR - PHL
1 stop12h 20mBritish Airways
Mon 12/115:35PHL - LHR
1 stop10h 25mBritish Airways
Deal found 2/12£553
Mon 29/1213:00LHR - PHL
1 stop15h 17mVirgin Atlantic
Mon 12/116:59PHL - LHR
1 stop32h 26mVirgin Atlantic
Deal found 4/12£554
Sat 27/1209:30LHR - PHL
1 stop12h 05mMultiple Airlines
Tue 17/315:30PHL - LHR
1 stop11h 40mMultiple Airlines
Deal found 3/12£561
Wed 24/1213:25LHR - PHL
1 stop30h 25mAir Canada
Wed 28/107:50PHL - LHR
2 stops18h 20mAir Canada
Deal found 4/12£561
Tue 16/1213:25LHR - PHL
2 stops38h 21mAir Canada
Thu 15/115:30PHL - LHR
2 stops48h 05mAir Canada
Deal found 2/12£562
Tue 9/1209:20EDI - PHL
2 stops18h 50mDelta
Tue 5/513:24PHL - EDI
2 stops16h 16mDelta
Deal found 2/12£563
Sat 27/1207:30LHR - PHL
1 stop14h 05mUnited Airlines
Wed 18/307:50PHL - LHR
2 stops21h 30mUnited Airlines
Deal found 3/12£563
Thu 25/1209:20LHR - PHL
1 stop13h 50mJetBlue
Fri 30/113:30PHL - LHR
1 stop12h 25mJetBlue
Deal found 4/12£564
Mon 29/1218:00LHR - PHL
2 stops25h 50mAir Canada
Mon 12/116:35PHL - LHR
2 stops33h 35mAir Canada
Deal found 3/12£566
Wed 24/1213:10LHR - PHL
Nonstop8h 05mAmerican Airlines
Mon 29/1221:15PHL - LHR
1 stop14h 05mAmerican Airlines
Deal found 2/12£567

Find flight deals from United Kingdom to Delaware

Keep the following information in mind while searching for United Kingdom to Delaware flight deals. Data was last updated 5 December 2025.

Round-trip from

£538

One-way from

£175

Popular in

December

Cheapest in

February

Average price

£693
British Airways
  • British Airways
  • 22/1-26/1
  • 2 total stops
  • 30h 30m total
  • United Kingdom to Delaware
Search Deals
15/1
  • 15/1
  • 1 total stop
  • 15h 35m total
  • United Kingdom to Delaware
Search Deals
Highest demand for flights based on searches. 4% potential increase in price (£21 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (£10 potential savings vs. average return price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from United Kingdom to Delaware that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 5 December 2025.
Use the filters below to find and compare flights from the United Kingdom to Delaware that are best for you.

Fly from

United Kingdom

Fly to

Delaware

Route

Depart

Return

Price

EdinburghPhiladelphia

EDI - PHL

EDIPHL

Edinburgh Turnhouse

Wed 18/3

18:50-17:05

2 stops26h 15m

Philadelphia

Wed 25/3

16:35-19:50

3 stops23h 15m

£515

LondonPhiladelphia

STN - PHL

STNPHL

London Stansted

Sun 18/1

05:55-22:46

3 stops21h 51m

Philadelphia

Sun 25/1

15:30-20:55

2 stops24h 25m

£540

LondonPhiladelphia

LHR - PHL

LHRPHL

London Heathrow

Tue 21/4

19:05-14:00

1 stop23h 55m

Philadelphia

Tue 28/4

22:20-10:20

Nonstop7h 00m

£544

LondonPhiladelphia

LGW - PHL

LGWPHL

London Gatwick

Fri 16/1

14:00-01:01

1 stop16h 01m

Philadelphia

Mon 6/4

17:03-15:35

2 stops17h 32m

£545

LondonPhiladelphia

STN - PHL

STNPHL

London Stansted

Wed 4/2

18:25-14:50

3 stops25h 25m

Philadelphia

Mon 9/2

15:30-22:40

2 stops26h 10m

£546

LondonPhiladelphia

LHR - PHL

LHRPHL

London Heathrow

Fri 16/1

06:30-22:46

2 stops21h 16m

Philadelphia

Thu 2/4

09:15-06:30

2 stops16h 15m

£549

LondonPhiladelphia

LHR - PHL

LHRPHL

London Heathrow

Mon 2/2

12:05-18:55

1 stop11h 50m

Philadelphia

Sun 19/4

19:45-06:55

1 stop30h 10m

£556

BirminghamPhiladelphia

BHX - PHL

BHXPHL

Birmingham

Sat 17/1

13:20-09:38

2 stops25h 18m

Philadelphia

Sat 24/1

10:30-12:35

2 stops21h 05m

£564

EdinburghPhiladelphia

EDI - PHL

EDIPHL

Edinburgh Turnhouse

Wed 18/3

08:20-17:00

1 stop12h 40m

Philadelphia

Wed 25/3

19:35-09:30

1 stop9h 55m

£564

EdinburghPhiladelphia

EDI - PHL

EDIPHL

Edinburgh Turnhouse

Wed 18/3

10:45-23:00

2 stops16h 15m

Philadelphia

Wed 25/3

11:16-10:40

2 stops19h 24m

£564

Flights are sorted by cheapest return flights first.

Deals found on 3/12

Showing 1-10 of 60 results
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Best time to book a flight from United Kingdom to Delaware

Have a flexible travel schedule? Discover the best time to fly to Delaware from United Kingdom with our price prediction graph.
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 the United Kingdom to Delaware
No data available for this route at this time. Please check back soon.

Related info for your journey

Find useful and relevant information for your journey from United Kingdom to Delaware. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from United Kingdom to Delaware?

    Airlines like Finnair, United Airlines, and Lufthansa fly from United Kingdom to Delaware in about 21h 16m. The time it takes to get you to your destination can typically vary by up to 4h 02m. The distance from United Kingdom to Delaware is about 3533 mi. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • What are the cheapest airlines to fly from United Kingdom to Delaware one-way?

    The cheapet airlines for a one-way flight from United Kingdom to Delaware are Wizz Air (£41), Wizz Air (£49), and Wizz Air (£56).

  • Can I find deals for flights from United Kingdom to Delaware that include hotel bookings?

    Yes. In addition to deals on United Kingdom to Delaware flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from United Kingdom to Delaware?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from United Kingdom to Delaware.

  • Can I find deals for business class flights from United Kingdom to Delaware?

    Yes. Cheapflights offers flight deals from United Kingdom 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

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Alternative routes for United Kingdom to Delaware

See prices for flight routes from nearby airports that may be better suited for you.
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Edinburgh to John F Kennedy Intl flights
Manchester to Newark flights
London City to Orlando flights
Gatwick to Las Vegas flights
Gatwick to Boston flights
Manchester to LaGuardia flights
Stansted to Los Angeles flights
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Gatwick to Dallas/Fort Worth flights
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Luton to Miami flights

Fly with Cheapflights

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How does Cheapflights help users find flights from United Kingdom to Delaware?

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Can Cheapflights find flights from United Kingdom to Delaware with no change fees?

Need flexible booking options for your flight to Delaware from United Kingdom? Don’t worry, Cheapflights have you covered. Use our search filter to only show flights with no change fees.

Can Cheapflights notify me if prices for flights from United Kingdom to Delaware become cheaper?

Yes! Start tracking prices for United Kingdom to Delaware flights today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive your alerts.

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