£307 Find Cheap Flights from London to Delaware

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from London to Delaware departing on 11/6. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
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KAYAK searches hundreds of travel sites at once for deals on flights to Delaware

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from London to Delaware, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from London to Delaware, as well as popular online travel agencies
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Best Delaware Flight Deals from London

Cheapest return prices found by our users on KAYAK in the last 72 hours

Philadelphia
Philadelphia1 stop£441
Philadelphia
Philadelphia1 stop£441

Cheap Flight Deals from London to Delaware (LHR-USDE)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from London to Delaware that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Recent return flight deals from London to Delaware

Recommended return flight deals departing in the coming months from the most popular airlines that fly from London to Delaware.
Discover the best prices for you by selecting your travel dates on KAYAK.
JetBlue Logo
08:25 - 18:42LHR-PHL
15h 17m1 stop
JetBlue Logo
10:20 - 06:30PHL-LHR
15h 10m1 stop
£441JetBlue
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Tue, 9 Sep - Tue, 23 Sep
Logo
09:30 - 16:00LHR-PHL
11h 30m1 stop
Logo
09:45 - 06:30PHL-LHR
15h 45m1 stop
£450
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Tue, 13 May - Fri, 23 May
Finnair Logo
07:45 - 15:50LHR-PHL
13h 05m1 stop
Finnair Logo
13:55 - 06:15PHL-LHR
11h 20m1 stop
£459Finnair
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Tue, 13 May - Tue, 15 Jul
Lufthansa Logo
09:30 - 16:00LHR-PHL
11h 30m1 stop
Lufthansa Logo
06:15 - 05:55PHL-LHR
18h 40m2 stops
£459Lufthansa
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Tue, 13 May - Sun, 18 May
Lufthansa Logo
06:30 - 16:00LHR-PHL
14h 30m1 stop
Lufthansa Logo
19:58 - 05:55PHL-LHR
28h 57m2 stops
£463Lufthansa
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Wed, 10 Sep - Thu, 25 Sep
Finnair Logo
08:25 - 14:00LHR-PHL
10h 35m1 stop
Finnair Logo
13:35 - 06:15PHL-LHR
11h 40m1 stop
£464Finnair
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Mon, 1 Sep - Mon, 8 Sep
United Airlines Logo
07:30 - 16:00LHR-PHL
13h 30m1 stop
United Airlines Logo
19:58 - 10:40PHL-LHR
9h 42m1 stop
£465United Airlines
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Thu, 11 Sep - Mon, 22 Sep
United Airlines Logo
08:40 - 00:44LHR-PHL
21h 04m2 stops
United Airlines Logo
10:35 - 06:45PHL-LHR
15h 10m2 stops
£466United Airlines
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Fri, 16 May - Thu, 22 May
Air Canada Logo
06:50 - 22:08LHR-PHL
20h 18m2 stops
Air Canada Logo
10:35 - 11:50PHL-LHR
20h 15m1 stop
£471Air Canada
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Tue, 9 Sep - Sat, 27 Sep
Air Canada Logo
06:50 - 14:36LHR-PHL
12h 46m2 stops
Air Canada Logo
15:20 - 06:30PHL-LHR
10h 10m1 stop
£471Air Canada
Find Deal
Thu, 15 May - Sat, 24 May
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KAYAK's insights & trends for London to Delaware flights

Get data-powered insights and trends into flights from London to Delaware to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest time of day to fly to Delaware?

The average price for all round-trip flights from London Heathrow Airport to Delaware depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.
The cheapest time of day to fly to Delaware is generally in the evening, when retur flights cost £669 on average. Morning departures are around 29% more expensive than evening flights, on average. The most expensive time of day to fly to Delaware is generally in the morning, which is peak travel time and where the average cost of a ticket is £866.

What is the cheapest month to fly from London Heathrow Airport to Delaware?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from London Heathrow Airport to Delaware, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.
The cheapest month for flights from London Heathrow Airport to Delaware is March, when tickets cost £477 (return) on average. On the other hand, the most expensive months are July and August, when the average cost of return tickets is £698 and £695 respectively.

What’s the cheapest day of the week to fly from London to Delaware?

The average price of all round-trip flights from London Heathrow Airport to Delaware clicked on KAYAK for each day over the last 12 months.
If your flying dates are flexible, you should consider flying to Delaware on a Tuesday, as we generally find the cheapest rates on that day for this route. On the other hand, Sunday is the most expensive day to fly from London to Delaware. For your return ticket, we recommend flying on a Tuesday and avoiding Thursdays for the best deals.

How far in advance should I book a flight from London Heathrow Airport to Delaware?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from London Heathrow Airport to Delaware, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.
To get a below-average price on the flight from London Heathrow Airport to Delaware, you should book around 2 weeks before departure. For the absolute cheapest price, our data suggests you should book 25 weeks before departure.
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Good to know - Cheap tickets from London to Delaware

Low season

January

High season

June

Cheapest flight

£307
Best time to beat the crowds (6% less expensive on average)
Most popular time to fly and prices are also 3% lower on average.
Flight from London Heathrow Airport to Philadelphia

FAQs - booking Delaware flights

  • How does KAYAK find such low prices on flights from London to Delaware?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from London to Delaware.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from London to Delaware?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from London to Delaware is likely to change within 7 days, so travellers know whether to wait or book now.

  • What is the Hacker Fare option on flights from London to Delaware?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly from London to Delaware with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from London to Delaware?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from London to Delaware up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Everything you need to know for your flight from London to Delaware

Information on your arrival and departure airports

London (LHR)

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