£403+ 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 17/9. Fares are subject to change and may not be available on all flights or dates of travel.
— ILG
20 Aug — 27 Aug1
1 adult

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 15 August 2025.

Return from

£468

One-way from

£403

Popular in

August

Cheapest in

February

Average price

£674
3/10-16/10
  • 3/10-16/10
  • 3 total stops
  • 34h 37m total
  • London to Philadelphia
Aer Lingus
  • Aer Lingus
  • 17/9
  • 1 total stop
  • 12h 00m 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 (£9 potential savings vs. average return price).
Average for return flights in August 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 15 August 2025.

Fri 3/1014:00LGW - PHL
1 stop15h 52mMultiple Airlines
Thu 16/1006:35PHL - LGW
2 stops18h 45mMultiple Airlines
Deal found 13/8£468
Fri 3/1008:25LHR - PHL
1 stop11h 35mJetBlue
Wed 15/1010:20PHL - LHR
1 stop15h 10mJetBlue
Deal found 13/8£469
Thu 27/1106:50LHR - PHL
2 stops12h 57mAir Canada
Thu 4/1215:30PHL - LHR
1 stop10h 40mAir Canada
Deal found 14/8£470
Wed 17/914:00LGW - PHL
1 stop22h 35mMultiple Airlines
Mon 29/914:07PHL - LGW
2 stops35h 13mMultiple Airlines
Deal found 13/8£470
Sat 27/910:00LGW - PHL
2 stops17h 29mMultiple Airlines
Sat 4/1014:15PHL - LGW
1 stop14h 45mMultiple Airlines
Deal found 13/8£471
Thu 23/1009:30LHR - PHL
1 stop11h 30mLufthansa
Mon 3/1115:30PHL - LHR
1 stop10h 40mLufthansa
Deal found 13/8£471
Fri 29/806:50LHR - PHL
2 stops20h 17mAir Canada
Thu 11/910:35PHL - LHR
1 stop20h 15mAir Canada
Deal found 13/8£472
Thu 28/810:00LGW - PHL
1 stop28h 46mMultiple Airlines
Thu 4/905:15PHL - LGW
2 stops20h 05mMultiple Airlines
Deal found 13/8£472
Thu 11/906:50LHR - PHL
2 stops12h 48mMultiple Airlines
Thu 18/909:20PHL - LHR
1 stop19h 15mMultiple Airlines
Deal found 14/8£473
Sun 28/906:50LHR - PHL
2 stops12h 48mAir Canada
Sun 5/1015:25PHL - LHR
1 stop10h 05mAir Canada
Deal found 14/8£473
Wed 3/912:10LGW - PHL
1 stop31h 05mJetBlue
Sun 7/907:00PHL - LGW
1 stop21h 35mJetBlue
Deal found 14/8£473
Sat 27/906:50LHR - PHL
2 stops19h 38mUnited Airlines
Sat 4/1017:01PHL - LHR
1 stop32h 19mUnited Airlines
Deal found 13/8£474

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 15 August 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

Fri 3/10

14:00-00:52

1 stop15h 52m

Philadelphia

Thu 16/10

06:35-06:20

2 stops18h 45m

£468

LondonPhiladelphia

LHR - PHL

LHRPHL

London Heathrow

Thu 9/10

08:25-17:45

1 stop14h 20m

Philadelphia

Wed 15/10

15:10-06:30

1 stop10h 20m

£469

LondonPhiladelphia

LHR - PHL

LHRPHL

London Heathrow

Sun 5/10

08:25-15:40

1 stop12h 15m

Philadelphia

Wed 15/10

15:10-06:30

1 stop10h 20m

£469

LondonPhiladelphia

LHR - PHL

LHRPHL

London Heathrow

Fri 3/10

08:25-15:00

1 stop11h 35m

Philadelphia

Wed 15/10

10:20-06:30

1 stop15h 10m

£469

LondonPhiladelphia

LHR - PHL

LHRPHL

London Heathrow

Mon 6/10

08:25-17:45

1 stop14h 20m

Philadelphia

Mon 13/10

10:20-06:30

1 stop15h 10m

£469

LondonPhiladelphia

LHR - PHL

LHRPHL

London Heathrow

Sat 4/10

08:25-16:21

1 stop12h 56m

Philadelphia

Wed 15/10

15:10-06:30

1 stop10h 20m

£469

LondonPhiladelphia

LHR - PHL

LHRPHL

London Heathrow

Tue 7/10

08:25-17:45

1 stop14h 20m

Philadelphia

Sun 12/10

10:20-06:30

1 stop15h 10m

£469

LondonPhiladelphia

LHR - PHL

LHRPHL

London Heathrow

Tue 18/11

06:50-14:47

2 stops12h 57m

Philadelphia

Thu 27/11

15:30-07:10

1 stop10h 40m

£470

LondonPhiladelphia

LHR - PHL

LHRPHL

London Heathrow

Wed 14/1

06:50-14:47

2 stops12h 57m

Philadelphia

Sun 18/1

13:00-07:10

2 stops13h 10m

£470

LondonPhiladelphia

LHR - PHL

LHRPHL

London Heathrow

Wed 3/9

06:50-22:08

2 stops20h 18m

Philadelphia

Mon 22/9

15:25-09:35

1 stop13h 10m

£470

Flights are sorted by cheapest return flights first.

Deals found on 12/8

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 35 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, Edinburgh Turnhouse offers the quickest one-way flight (7 hours 20 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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Why should you use Cheapflights to find cheap flight tickets to Delaware?

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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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