£325 Cheap Flights to Delaware

View £325 flight on Tue, 14 Apr 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 £325 for one-way flights and £446 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

JetBlue Airways
Mon, 9 Mar - Mon, 16 Mar
LHR
London
PHL
Philadelphia
£446 Return, found 1 hour ago
£446
Return
found 1 hour ago
Select JetBlue Airways flight, departing Mon, 9 Mar from London to Philadelphia, returning Mon, 16 Mar, priced at £446 found 1 hour ago
Aer Lingus
Wed, 11 Mar - Mon, 16 Mar
LHR
London
PHL
Philadelphia
£493 Return, found 2 days ago
£493
Return
found 2 days ago
Select Aer Lingus flight, departing Wed, 11 Mar from London to Philadelphia, returning Mon, 16 Mar, priced at £493 found 2 days ago
American Airlines
Mon, 30 Mar - Wed, 22 Apr
LHR
London
PHL
Philadelphia
£508 Return, found 2 days ago
£508
Return
found 2 days ago
Select American Airlines flight, departing Mon, 30 Mar from London to Philadelphia, returning Wed, 22 Apr, priced at £508 found 2 days ago
British Airways
Wed, 18 Mar - Tue, 24 Mar
LHR
London
PHL
Philadelphia
£522 Return, found 2 hours ago
£522
Return
found 2 hours ago
Select British Airways flight, departing Wed, 18 Mar from London to Philadelphia, returning Tue, 24 Mar, priced at £522 found 2 hours ago
Lufthansa
Tue, 17 Mar - Tue, 24 Mar
LHR
London
PHL
Philadelphia
£526 Return, found 2 days ago
£526
Return
found 2 days ago
Select Lufthansa flight, departing Tue, 17 Mar from London to Philadelphia, returning Tue, 24 Mar, priced at £526 found 2 days ago
Swiss International Air Lines
Wed, 11 Mar - Tue, 31 Mar
LCY
London
PHL
Philadelphia
£540 Return, found 1 day ago
£540
Return
found 1 day ago
Select Swiss International Air Lines flight, departing Wed, 11 Mar from London to Philadelphia, returning Tue, 31 Mar, priced at £540 found 1 day ago
American Airlines
Tue, 3 Mar - Tue, 17 Mar
LHR
London
PHL
Philadelphia
£545 Return, found 5 days ago
£545
Return
found 5 days ago
Select American Airlines flight, departing Tue, 3 Mar from London to Philadelphia, returning Tue, 17 Mar, priced at £545 found 5 days ago
United
Tue, 14 Apr - Wed, 13 May
LHR
London
PHL
Philadelphia
£551 Return, found 1 hour ago
£551
Return
found 1 hour ago
Select United flight, departing Tue, 14 Apr from London to Philadelphia, returning Wed, 13 May, priced at £551 found 1 hour ago
KLM
Sun, 8 Mar - Mon, 16 Mar
LHR
London
PHL
Philadelphia
£554 Return, found 1 day ago
£554
Return
found 1 day ago
Select KLM flight, departing Sun, 8 Mar from London to Philadelphia, returning Mon, 16 Mar, priced at £554 found 1 day ago
Air Canada
Wed, 18 Mar - Tue, 24 Mar
LHR
London
PHL
Philadelphia
£554 Return, found 2 hours ago
£554
Return
found 2 hours ago
Select Air Canada flight, departing Wed, 18 Mar from London to Philadelphia, returning Tue, 24 Mar, priced at £554 found 2 hours ago

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 £325 or round-trip from £446, 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 £325.

Why book your flights to Delaware with Expedia

Expedia offers great deals on Delaware air fares from £325 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.

Delaware Flights Information

Airlines serving
JetBlue Airways, Aer Lingus, British Airways, Lufthansa, Iberia, American Airlines, Swiss International Air Lines, KLM, Brussels Airlines, United, Air Canada
Roundtrip price
from £446

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, £446 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 £325 in the last seven days. During this time, the price of a return journey to Delaware ranged between £446 and £554. 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 £446 and £554. 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.

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
Mon, 9 Mar - Mon, 16 Mar
LHR
London
PHL
Philadelphia
£446 Return, found 1 hour ago
£446
Return
found 1 hour ago
Select JetBlue Airways flight, departing Mon, 9 Mar from London to Philadelphia, returning Mon, 16 Mar, priced at £446 found 1 hour ago
*Available to Expedia members.