£362+ Cheap flights to Delaware

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 14/12. Fares are subject to change and may not be available on all flights or dates of travel.
— ILG
30 Oct — 6 Nov1
1 adult
1 adult, Economy

Flights to Delaware in 2025

Find the latest flights to Delaware in 2025, with up-to-date prices and availability. In the last 7 days, Cheapflights users made a total of 858,174 searches and data was last updated on 30 September 2025.

Return from

£440

One-way from

£360

Popular in

August

Cheapest in

February

Average price

£496
United Airlines
  • United Airlines
  • 29/10-10/11
  • 3 total stops
  • 33h 41m total
  • London to Philadelphia
22/11
  • 22/11
  • 1 total stop
  • 23h 15m total
  • London to Delaware
Highest demand for flights based on searches. 6% potential increase in price (£30 potential increase over avg. return price).
Cheapest flight prices on average. 2% potential price decrease (£10 potential savings vs. average return price).
Average for return flights in September 2025

Find flight deals to Delaware

Cheapest flights to Delaware
Explore the most affordable flight options available to Delaware. Find the lowest fares based on data from user searches, with prices last updated on 30 September 2025.

Wed 29/1008:30LHR - PHL
2 stops16h 51mUnited Airlines
Mon 10/1110:05PHL - LHR
1 stop16h 50mUnited Airlines
Deal found 29/9£440
Mon 6/1006:50LHR - PHL
2 stops19h 38mUnited Airlines
Mon 13/1019:58PHL - LHR
1 stop9h 42mUnited Airlines
Deal found 29/9£441
Thu 27/1106:50LHR - PHL
2 stops12h 57mMultiple Airlines
Thu 4/1209:20PHL - LHR
2 stops16h 50mMultiple Airlines
Deal found 29/9£441
Wed 15/1012:10LGW - PHL
1 stop14h 45mJetBlue
Mon 20/1018:44PHL - LGW
1 stop9h 51mJetBlue
Deal found 29/9£441
Mon 3/1106:50LHR - PHL
2 stops12h 57mAir Canada
Mon 10/1115:30PHL - LHR
2 stops14h 50mAir Canada
Deal found 29/9£442
Fri 3/1014:00LGW - PHL
1 stop15h 52mMultiple Airlines
Mon 6/1012:43PHL - LGW
1 stop16h 17mMultiple Airlines
Deal found 29/9£442
Tue 28/1009:20LHR - PHL
1 stop15h 20mJetBlue
Tue 4/1116:52PHL - LHR
1 stop9h 03mJetBlue
Deal found 28/9£443
Mon 6/1015:50LHR - PHL
1 stop11h 39mAir Canada
Mon 13/1015:25PHL - LHR
1 stop13h 10mAir Canada
Deal found 29/9£444
Fri 3/1014:00LGW - PHL
1 stop15h 52mMultiple Airlines
Fri 17/1008:15PHL - LGW
2 stops20h 45mMultiple Airlines
Deal found 28/9£444
Thu 30/1007:30LHR - PHL
2 stops15h 35mUnited Airlines
Sun 2/1116:35PHL - LHR
2 stops23h 00mUnited Airlines
Deal found 28/9£444
Fri 28/1113:30LHR - PHL
2 stops14h 26mMultiple Airlines
Wed 3/1209:20PHL - LHR
2 stops16h 50mMultiple Airlines
Deal found 28/9£445
Wed 8/1008:55LHR - PHL
1 stop13h 58mBritish Airways
Wed 22/1016:00PHL - LHR
1 stop10h 50mBritish Airways
Deal found 29/9£446

Cheapflights Fare Finder

 
Locate flights to Delaware that fit your budget, with regularly updated fares and availability. In the last 7 days, Cheapflights users made a total of 858,174 searches and data was last updated on 30 September 2025.
Use the filters below to find and compare flights to Delaware that are best for you.

Fly from

London

Route

Depart

Return

Price

LondonPhiladelphia

LGW - PHL

LGWPHL

London Gatwick

Wed 15/10

12:10-21:55

1 stop14h 45m

Philadelphia

Mon 20/10

18:44-09:35

1 stop9h 51m

£441

LondonPhiladelphia

LGW - PHL

LGWPHL

London Gatwick

Wed 15/10

12:10-21:55

1 stop14h 45m

Philadelphia

Tue 21/10

15:31-09:35

1 stop13h 04m

£441

LondonPhiladelphia

LHR - PHL

LHRPHL

London Heathrow

Thu 5/3

06:00-22:56

2 stops21h 56m

Philadelphia

Mon 9/3

16:35-14:05

2 stops17h 30m

£451

LondonPhiladelphia

LHR - PHL

LHRPHL

London Heathrow

Wed 22/10

08:30-18:57

2 stops15h 27m

Philadelphia

Tue 25/11

12:40-06:40

2 stops13h 00m

£452

LondonPhiladelphia

LHR - PHL

LHRPHL

London Heathrow

Fri 10/10

07:45-18:57

2 stops16h 12m

Philadelphia

Sun 30/11

20:00-06:40

1 stop29h 40m

£453

LondonPhiladelphia

LGW - PHL

LGWPHL

London Gatwick

Mon 13/10

14:00-09:40

1 stop24h 40m

Philadelphia

Mon 20/10

15:25-10:10

1 stop13h 45m

£454

LondonPhiladelphia

LGW - PHL

LGWPHL

London Gatwick

Tue 14/10

14:30-09:40

1 stop24h 10m

Philadelphia

Tue 21/10

15:25-10:40

1 stop14h 15m

£454

LondonPhiladelphia

LGW - PHL

LGWPHL

London Gatwick

Mon 13/10

14:00-09:40

1 stop24h 40m

Philadelphia

Tue 21/10

15:25-10:40

1 stop14h 15m

£454

LondonPhiladelphia

LHR - PHL

LHRPHL

London Heathrow

Mon 3/11

10:00-23:05

2 stops18h 05m

Philadelphia

Mon 10/11

09:37-08:05

2 stops17h 28m

£465

LondonPhiladelphia

LHR - PHL

LHRPHL

London Heathrow

Tue 16/12

06:30-16:05

1 stop14h 35m

Philadelphia

Mon 5/1

16:35-06:30

1 stop32h 55m

£465

Flights are sorted by cheapest return flights first.

Deals found on 29/9

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

Have a flexible travel schedule? Discover the best time to fly to Delaware 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 to Delaware

How long is the flight to Delaware?

On average, a flight from London to Delaware takes 14 hours 48 minutes. Flights to Delaware from other popular cities in United Kingdom will vary in length. Below are a few examples of popular routes and their flight times.

Rainfall in Delaware by month

Plan your trip to Delaware by taking into account the average rainfall totals by month.

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.

Temperature in Delaware by month

Plan your trip to Delaware by taking into account the average temperature totals by month.

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).

FAQs about flying to Delaware

Delaware climate

Delaware has a moderate climate with average monthly temperatures that range from zero degrees (Celsius) in winter to 24 degrees in summer. More than half the days are sunny, and temperatures along the Atlantic coast are about ten degrees warmer in summer and cooler in winter.

Getting around Delaware

Delaware is 96 miles long and varies from nine miles to 35 miles in width. The best way to get around the state is by car.

Wilmington is on the main East Coast train and bus routes, but to get to other parts of the state you will need to drive.

What is good to know if travelling to Delaware?

  • Delaware is known as the “First State” as it was the first to ratify the US constitution. It is fiercely proud of this history, and there are many attractions throughout the state to reflect this. The Historical Society of Delaware is a state-wide organisation devoted to the preservation and appreciation of the state’s history. It owns three historic sites in Wilmington, all of which are worth a visit: the Old Town Hall, Willingtown Square and the Read House and Gardens.
  • Also in Wimington, the Delaware Art Museum is one of the best galleries in the state. Recently expanded in 2005, the Copeland Sculpture Park is the first of its kind in the Brandywine Valley. The park currently features nine spectacular sculptures from the museum’s own collection and one on loan.
  • For garden lovers, the Winterthur Garden in Wilmington is a must-visit. The du Pont family has shaped the history of Delaware – the huge DuPont chemical plant is one of the major industrial works in the state – but the house and garden created by Henry Francis du Pont in the early 20th century is a far more attractive monument on the landscape.
  • Delaware has some of the best beaches in the mid-Atlantic. The busiest resort is Rehoboth Beach, which boasts one of the last wooden boardwalks on the east coast – though the rest of the town is not so historic. The stretch of beach is surrounded by a golf course, hotels, shopping malls, conference centres, condos and nightclubs. Nearby Lewes is a smaller, more historic fishing town. On offer here, as well as the beach and water sports, are bird watching, fishing, hiking, biking and wine tours. The main appeal, however, are the surrounding beaches, many of which have been protected by development as state parks – ensuring long stretches of sand and not much else.
  • Though Dover is the state capital, it is much smaller in size than Wilmington and often missed by visitors. If you do visit, don’t miss Spence’s Auction and Flea Market, held every Tuesday and Friday. The market is mainly for food and vegetables – homemade sausages and preserves from the local Amish community are specialities.
  • When is the best time to fly to Delaware?

    Peak Season: Delaware’s 30 miles of Atlantic coastline are a beach haven in the summer. Many businesses, campgrounds, and services are open only for the summer season, Delaware flights are high, and reservations should be made in advance. Wilmington and the Brandywine Valley are year-round destinations. Off Season: Off-season bargains abound along the Atlantic coast. Even though many of the businesses close, if you look around you can find a place to stay. May and especially September are great times to find cheaper rates, comfortable temperatures, and quieter beaches.

  • Can I find cheaper flights to Delaware if I am willing to have stopovers?

    Yes, flights with stopovers are often cheaper than direct flights. Keep an eye out for flight deals to Delaware on Cheapflights that require 1 or 2 stops for potential cost savings.

  • Where does the fastest flight to Delaware depart from?

    For those looking to save time traveling to Delaware, London offers the quickest one-way flight (8 hours 0 minutes).

  • Does Greater Wilmington have car hire?

    Yes. Those touching down at Greater Wilmington can take advantage of the car hire services offered upon their arrival.

  • Are there hotels close to Greater Wilmington?

    Yes. Greater Wilmington has hotels nearby for those requiring accommodations. Skyways Hotel New Castle, De is the closest property to Greater Wilmington (0.0 mi away from Greater Wilmington).

See more FAQs

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Can Cheapflights find flights to Delaware with no change fees?

Certainly. Search results for flights to Delaware shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

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Not ready to book yet? You can track prices for flights to Delaware on Cheapflights with our Price Alerts feature and get notified when better prices are available.

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