£343+ 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 1/9. Fares are subject to change and may not be available on all flights or dates of travel.
— ILG
8 Jul — 15 Jul1
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 8 June 2026.

Fri 10/709:15
LCY
-
PHL
1 stop11h 50m
Multiple Airlines
Sun 26/717:40
PHL
-
LCY
2 stops13h 55m
Multiple Airlines
Deal found 8/6£633
Thu 18/609:15
LHR
-
PHL
Nonstop7h 55m
British Airways
Tue 30/615:28
PHL
-
LHR
1 stop11h 32m
British Airways
Deal found 8/6£633
Thu 13/808:30
STN
-
PHL
1 stop15h 25m
Multiple Airlines
Tue 18/820:25
PHL
-
STN
1 stop16h 10m
Multiple Airlines
Deal found 8/6£639
Mon 7/909:15
LCY
-
PHL
1 stop11h 50m
Lufthansa
Mon 21/917:40
PHL
-
LCY
1 stop19h 15m
Lufthansa
Deal found 6/6£642
Thu 3/908:00
LCY
-
PHL
1 stop12h 40m
British Airways
Wed 18/1117:30
PHL
-
LCY
1 stop11h 55m
British Airways
Deal found 8/6£642
Thu 10/909:15
LCY
-
PHL
1 stop11h 50m
Lufthansa
Thu 24/917:40
PHL
-
LCY
2 stops13h 55m
Lufthansa
Deal found 8/6£643
Fri 10/709:15
LHR
-
PHL
Nonstop8h 00m
British Airways
Thu 16/717:30
PHL
-
LHR
1 stop9h 30m
British Airways
Deal found 4/6£643
Wed 7/1010:35
LGW
-
PHL
2 stops28h 15m
TAP AIR PORTUGAL
Wed 14/1010:45
PHL
-
LGW
2 stops18h 00m
TAP AIR PORTUGAL
Deal found 8/6£643
Mon 6/706:45
LCY
-
PHL
1 stop14h 25m
British Airways
Mon 27/720:15
PHL
-
LCY
1 stop14h 00m
British Airways
Deal found 4/6£644
Sun 14/609:15
LHR
-
PHL
Nonstop7h 55m
British Airways
Tue 30/619:20
PHL
-
LHR
Nonstop7h 30m
British Airways
Deal found 3/6£644
Mon 8/614:00
LGW
-
PHL
1 stop23h 51m
Multiple Airlines
Mon 3/808:30
PHL
-
LGW
2 stops20h 30m
Multiple Airlines
Deal found 5/6£644
Mon 6/709:15
LCY
-
PHL
1 stop11h 50m
Lufthansa
Wed 15/717:40
PHL
-
LCY
1 stop19h 15m
Lufthansa
Deal found 4/6£645

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 8 June 2026.

Return from

£632

One-way from

£343

Popular in

June

Cheapest in

September

Average price

£717
Lufthansa
  • Lufthansa
  • 18/6-24/6
  • 3 total stops
  • 29h 59m total
  • London to Philadelphia
JetBlue
  • JetBlue
  • 1/9
  • 1 total stop
  • 16h 20m total
  • London to Delaware
Highest demand for flights based on searches. 10% potential increase in price (£72 potential increase over avg. return price).
Cheapest flight prices on average. 1% potential price decrease (£9 potential savings vs. average return price).
Average for return flights in June 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 8 June 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

LCY - PHL

LCYPHL

London City

Tue 1/9

19:15-16:05

2 stops25h 50m

Philadelphia

Tue 15/9

11:04-08:40

2 stops16h 36m

£645

LondonPhiladelphia

LCY - PHL

LCYPHL

London City

Fri 4/9

17:15-16:10

1 stop27h 55m

Philadelphia

Tue 8/9

18:30-07:55

1 stop32h 25m

£651

LondonPhiladelphia

LCY - PHL

LCYPHL

London City

Mon 31/8

19:15-16:05

2 stops25h 50m

Philadelphia

Wed 16/9

17:40-12:35

2 stops13h 55m

£665
Fastest return journey

LondonPhiladelphia

LHR - PHL

LHRPHL

London Heathrow

Sat 29/8

12:30-15:35

Nonstop8h 05m

Philadelphia

Sat 12/9

22:20-10:20

Nonstop7h 00m

£670

LondonPhiladelphia

LGW - PHL

LGWPHL

London Gatwick

Tue 23/6

20:40-00:39

2 stops32h 59m

Philadelphia

Sat 27/6

19:54-10:40

1 stop33h 46m

£672

LondonPhiladelphia

LTN - PHL

LTNPHL

London Luton

Thu 18/6

09:25-18:55

1 stop14h 30m

Philadelphia

Sun 21/6

20:25-13:25

1 stop12h 00m

£684

LondonPhiladelphia

LCY - PHL

LCYPHL

London City

Mon 7/9

09:15-17:54

2 stops37h 39m

Philadelphia

Thu 17/9

17:40-17:30

2 stops18h 50m

£687

LondonPhiladelphia

LHR - PHL

LHRPHL

London Heathrow

Sat 27/6

09:15-12:10

Nonstop7h 55m

Philadelphia

Fri 10/7

17:30-08:00

1 stop9h 30m

£695

LondonPhiladelphia

LCY - PHL

LCYPHL

London City

Wed 8/7

19:15-16:05

2 stops25h 50m

Philadelphia

Fri 17/7

17:40-11:40

2 stops13h 00m

£697

LondonPhiladelphia

LGW - PHL

LGWPHL

London Gatwick

Mon 6/7

18:35-16:05

2 stops26h 30m

Philadelphia

Mon 13/7

11:38-08:25

2 stops15h 47m

£698

Flights are sorted by cheapest return flights first.

Deals found on 8/6

Showing 1-10 of 60 resultsSorted by cheapest first
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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 12 hours 11 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

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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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