£349+ 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 12/10. Fares are subject to change and may not be available on all flights or dates of travel.
— ILG
10 Sep — 17 Sep1
1 adult
1 adult, Economy, 0 bags

Flights to Delaware in 2026

Enter your travel dates to find the best prices.

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 11 August 2026.

Fri 25/914:00 -
1 stop15h 09m
Fri 2/1017:32 -
2 stops31h 48m
Deal found 11/8£582
Fri 25/906:35 -
1 stop17h 20m
Fri 2/1010:42 -
2 stops21h 08m
Deal found 11/8£583
Sat 3/1014:00 -
1 stop15h 09m
Mon 5/1015:30 -
1 stop13h 30m
Deal found 11/8£585
Wed 11/1106:50 -
2 stops12h 54m
Wed 18/1109:15 -
2 stops16h 55m
Deal found 11/8£586
Wed 2/907:40 -
1 stop16h 15m
Tue 29/920:25 -
1 stop12h 30m
Deal found 11/8£586
Sat 3/1014:00 -
1 stop15h 09m
Sun 4/1010:10 -
1 stop18h 50m
Deal found 11/8£586
Mon 14/907:40 -
1 stop16h 15m
Mon 21/920:25 -
1 stop18h 55m
Deal found 11/8£588
Tue 20/1006:40 -
2 stops20h 27m
Thu 29/1009:20 -
2 stops20h 00m
Deal found 11/8£589
Sat 12/914:00 -
1 stop15h 09m
Sun 27/919:41 -
2 stops33h 19m
Deal found 11/8£589
Thu 24/909:25 -
1 stop14h 30m
Thu 1/1010:42 -
2 stops17h 48m
Deal found 10/8£590
Mon 14/906:40 -
2 stops23h 00m
Mon 21/909:25 -
2 stops28h 05m
Deal found 11/8£591
Mon 28/907:45 -
2 stops20h 45m
Tue 6/1009:34 -
1 stop16h 11m
Deal found 11/8£592

Find flight deals to Delaware

Find the latest flights to Delaware in 2026, 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 11 August 2026.

Return from

£582

One-way from

£355

Popular in

August

Cheapest in

January

Average price

£808
25/9-2/10
  • 25/9-2/10
  • 3 total stops
  • 46h 57m total
  • London to Philadelphia
8/9
  • 8/9
  • 3 total stops
  • 58h 15m total
  • London to Delaware
Highest demand for flights based on searches. 9% potential increase in price (£66 potential increase over avg. return price).
Cheapest flight prices on average. 2% potential price decrease (£15 potential savings vs. average return price).
Average for return flights in August 2026

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 11 August 2026.
Use the filters below to find and compare flights to Delaware that are best for you.

Fly from

Route

Depart

Return

Price

Cheapest return flight

LondonPhiladelphia

LHR London Heathrow - PHL Philadelphia

LHRPHL

London Heathrow

Mon 2/11

11:10-23:30

2 stops17h 20m

Philadelphia

Sat 28/11

09:15-21:00

2 stops30h 45m

£612

LondonPhiladelphia

STN London Stansted - PHL Philadelphia

STNPHL

London Stansted

Wed 4/11

08:05-17:40

1 stop14h 35m

Philadelphia

Sun 8/11

17:30-07:50

1 stop9h 20m

£614

LondonPhiladelphia

LHR London Heathrow - PHL Philadelphia

LHRPHL

London Heathrow

Wed 11/11

06:30-14:05

1 stop12h 35m

Philadelphia

Wed 18/11

16:25-07:00

1 stop9h 35m

£623
Fastest return journey

LondonPhiladelphia

LHR London Heathrow - PHL Philadelphia

LHRPHL

London Heathrow

Mon 2/11

06:30-14:05

1 stop12h 35m

Philadelphia

Mon 16/11

19:50-07:50

Nonstop7h 00m

£625

LondonPhiladelphia

LHR London Heathrow - PHL Philadelphia

LHRPHL

London Heathrow

Wed 11/11

07:05-00:55

3 stops22h 50m

Philadelphia

Wed 18/11

14:15-21:40

2 stops26h 25m

£629

LondonPhiladelphia

LHR London Heathrow - PHL Philadelphia

LHRPHL

London Heathrow

Mon 5/10

09:30-16:05

1 stop11h 35m

Philadelphia

Mon 12/10

15:08-06:55

1 stop10h 47m

£633

LondonPhiladelphia

LHR London Heathrow - PHL Philadelphia

LHRPHL

London Heathrow

Wed 9/9

07:30-16:05

1 stop13h 35m

Philadelphia

Wed 23/9

10:05-06:30

1 stop15h 25m

£635

LondonPhiladelphia

LTN London Luton - PHL Philadelphia

LTNPHL

London Luton

Thu 10/9

18:00-14:47

3 stops25h 47m

Philadelphia

Mon 21/9

15:25-22:40

3 stops26h 15m

£637

LondonPhiladelphia

LTN London Luton - PHL Philadelphia

LTNPHL

London Luton

Mon 21/9

05:40-21:32

3 stops20h 52m

Philadelphia

Mon 28/9

15:25-14:20

2 stops17h 55m

£638

LondonPhiladelphia

LCY London City - PHL Philadelphia

LCYPHL

London City

Tue 12/1

06:50-14:05

1 stop12h 15m

Philadelphia

Tue 23/2

21:10-18:35

1 stop16h 25m

£640

Flights are sorted by cheapest return flights first.

Deals found on 7/8

Showing 1-10 of 60 resultsSorted by cheapest first
1
2
3
...
6

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 12 hours 18 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.

What are the cheapest airlines that fly to Delaware?

The cheapest airlines flying from London to Delaware are Wizz Air, Ryanair and Royal Jordanian.

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 15 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Find flights to Delaware cities and airports

Select your preferred flight destination in Delaware from the list below.

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights to Delaware?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights to Delaware. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

Why should you use Cheapflights to find cheap flight tickets to Delaware?

Millions of users choose and trust Cheapflights to book the best flight deals to Delaware for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

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.

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

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.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.