£343 Cheap Flights to Delaware

View £343 flight on Fri, 4 Sept 2026Opens in a new window

Popular airlines to Delaware

  • American Airlines

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Cheap round-trip flights to Delaware

Prices were available within the past 7 days and start at £343 for one-way flights and £540 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

JetBlue Airways
Wed, 4 Nov - Mon, 9 Nov
LHR
London
PHL
Philadelphia
£540 Return, found 13 hours ago
£540
Return
found 13 hours ago
Select JetBlue Airways flight, departing Wed, 4 Nov from London to Philadelphia, returning Mon, 9 Nov, priced at £540 found 13 hours ago
JetBlue Airways
Wed, 27 May - Wed, 3 Jun
LHR
London
PHL
Philadelphia
£557 Return, just found
£557
Return
just found
Select JetBlue Airways flight, departing Wed, 27 May from London to Philadelphia, returning Wed, 3 Jun, priced at £557 just found
American Airlines
Mon, 8 Mar - Mon, 22 Mar
LHR
London
PHL
Philadelphia
£582 Return, found 6 days ago
£582
Return
found 6 days ago
Select American Airlines flight, departing Mon, 8 Mar from London to Philadelphia, returning Mon, 22 Mar, priced at £582 found 6 days ago
Aer Lingus
Mon, 7 Dec - Thu, 10 Dec
LHR
London
PHL
Philadelphia
£598 Return, found 5 days ago
£598
Return
found 5 days ago
Select Aer Lingus flight, departing Mon, 7 Dec from London to Philadelphia, returning Thu, 10 Dec, priced at £598 found 5 days ago
British Airways
Mon, 8 Mar - Mon, 22 Mar
LHR
London
PHL
Philadelphia
£614 Return, found 6 days ago
£614
Return
found 6 days ago
Select British Airways flight, departing Mon, 8 Mar from London to Philadelphia, returning Mon, 22 Mar, priced at £614 found 6 days ago
TAP Portugal
Fri, 11 Sept - Fri, 25 Sept
LHR
London
PHL
Philadelphia
£626 Return, just found
£626
Return
just found
Select TAP Portugal flight, departing Fri, 11 Sept from London to Philadelphia, returning Fri, 25 Sept, priced at £626 just found
Lufthansa
Tue, 10 Nov - Tue, 17 Nov
LHR
London
PHL
Philadelphia
£628 Return, found 4 hours ago
£628
Return
found 4 hours ago
Select Lufthansa flight, departing Tue, 10 Nov from London to Philadelphia, returning Tue, 17 Nov, priced at £628 found 4 hours ago
Brussels Airlines
Wed, 10 Feb - Mon, 15 Feb
LHR
London
PHL
Philadelphia
£635 Return, found 2 days ago
£635
Return
found 2 days ago
Select Brussels Airlines flight, departing Wed, 10 Feb from London to Philadelphia, returning Mon, 15 Feb, priced at £635 found 2 days ago
Finnair
Mon, 14 Sept - Thu, 24 Sept
LHR
London
PHL
Philadelphia
£638 Return, found 2 hours ago
£638
Return
found 2 hours ago
Select Finnair flight, departing Mon, 14 Sept from London to Philadelphia, returning Thu, 24 Sept, priced at £638 found 2 hours ago
Air Canada
Sun, 15 Nov - Wed, 25 Nov
LHR
London
PHL
Philadelphia
£640 Return, found 5 days ago
£640
Return
found 5 days ago
Select Air Canada flight, departing Sun, 15 Nov from London to Philadelphia, returning Wed, 25 Nov, priced at £640 found 5 days ago

Trending flights to Delaware

These prices were available within the past 7 days. Prices quoted are per person, return, for the period specified. Prices and availability are subject to change. Additional terms apply.

JetBlue Airways
Wed, 4 Nov - Mon, 9 Nov
LHR
London
PHL
Philadelphia
£540 Return, found 13 hours ago
£540
Return
found 13 hours ago
Select JetBlue Airways flight, departing Wed, 4 Nov from London to Philadelphia, returning Mon, 9 Nov, priced at £540 found 13 hours ago

Frequently asked questions

How do I find cheap flights to Delaware that have flexible change policies?
It's as easy as counting to three with Expedia. Firstly, enter your preferred travel dates and press "Search." Next, check "No change fee" underneath the "Flexible change policies" filter to the left of the screen. Step 3. Snag your cheap and flexible fare to Delaware.
Which airlines fly to Delaware?
Let Avelo Airlines fly you there. This top carrier lists 34 services a month to Wilmington, DE (ILG-New Castle), a Delaware gateway.
How can I find cheap tickets to Delaware?
An effective strategy for finding cheap airfares is to be flexible with your travel dates. Begin with searching for your flight to Delaware, then click on the "flexible dates" box for a list of prices for nearby days. Another handy tip? Book ahead of time. For an idea of fares, £540 was the lowest price for a flight to Delaware in the last seven days.
How much is a flight to Delaware?
One-way flights departing from London (LHR) sold for as little as £343 in the last seven days. During this time, the price of a return journey to Delaware ranged between £540 and £640. If you find a fantastic deal, grab it quickly — these fares don't hang around.
What are the most popular airports to fly into in Delaware?
Fly into Wilmington, DE (ILG-New Castle) and sample all that Delaware has to offer. As the region's primary entry point, about 34 flights touch down here every month.
When is the cheapest time to fly to Delaware?
Leave for Delaware early in the week and you'll usually be rewarded with lower-priced fares. Tuesday is generally the cheapest day to jet off, followed closely by Monday. If you're hoping to avoid the most expensive flights, give Saturdays a wide berth.
How much is a plane ticket to Delaware?
In the last seven days, tickets cost between £540 and £640. Scroll through our sensational deals to Delaware, make a booking and then start packing!
What is the best time to go to Delaware?
Summer begins June 20 in the Northern Hemisphere, and these warmer months are a fantastic time to tour the top Delaware city of Wilmington. Average temperatures range between 18ºC and 27ºC at this time of year. The biggest crowds flock here in May, June and July.
What months are the cheapest to book a flight to Delaware?
To grab a fabulous deal to Delaware, try to book sometime in February when the price of tickets are at their cheapest. When's the most expensive time? In the U.S, it's the festive month of December.

Book with confidence

Top tips for booking flights to Delaware from UK

Get ready to fly to Delaware

Prepare your luggage and book your flights to Delaware with Expedia. We offer a seamless flight booking experience, with a wide range of Delaware plane tickets to choose from. If you need help finding some of the best deals for cheap flights to Delaware in 2026, we are always available to assist you. Book your flights to Delaware today and let the adventure begin!

Find the best tickets to Delaware

To find some of the best tickets to Delaware in 2026, use Expedia's powerful search engine to compare dates and the different departure and arrival airports for your trip. Whether you're after direct flights to Delaware or last-minute flights to Delaware, you can filter and sort your search results, making it easy to find the ideal flight to Delaware.

Airlines fly to Delaware

There are 20 different airlines that fly to Delaware including some of the most trusted names in the business. To book flights to Delaware with your favourite airline, take a look at Expedia's flight listings and try out different dates to find some of the best Delaware plane tickets.

Find the cheapest flights to Delaware

By booking early you may find some of the best deals for Delaware flights from the UK, including Delaware direct flights. You can usually find affordable and cheap flights to Delaware, whether one-way from £343 or round-trip from £540, with Expedia if you book your trip far enough in advance.

Find the best airports for cheap flights to Delaware

Try searching for different Delaware airports with Expedia to find some of the cheapest flights to Delaware. Flights from London (LHR) to Philadelphia (PHL) usually have the lowest price from £343.

Why book your flights to Delaware with Expedia

Expedia offers great deals on Delaware air fares from £343 to cater to every budget. Not only is Expedia one of the top platforms to book flights to Delaware from the UK, it is also your one-stop shop for booking hotels, car rentals, and more.

 

*Prices and availability are subject to change. Additional terms apply.

Top tips for booking flights to Delaware from UK

Travel information

Delaware Flights Information

Airlines serving
JetBlue Airways, British Airways, Aer Lingus, Lufthansa, Finnair, Brussels Airlines, Swiss International Air Lines, American Airlines, TAP Portugal, Air Canada
Roundtrip price
from £540
Delaware Flights Information

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