$339 Cheap Flights from Raleigh (RDU) to London (LHR)

View $339 flight on Sat, Sep 27, 2025Opens in a new window

Popular airlines from Raleigh-Durham International Airport (RDU) to Heathrow Airport (LHR)

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Today's featured flight deals from Raleigh-Durham International Airport (RDU) to Heathrow Airport (LHR)

Nonstop
Carry-on included
Lower price than typical

Cheap Flights from Raleigh to London (RDU-LHR)

Prices were available within the past 7 days and start at $339 for one-way flights and $423 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Icelandair
Sun, Apr 19 - Fri, Apr 24
RDU
Raleigh
LHR
London
$423 Roundtrip, found 4 hours ago
$423
Roundtrip
found 4 hours ago
Select Icelandair flight, departing Sun, Apr 19 from Raleigh to London, returning Fri, Apr 24, priced at $423 found 4 hours ago
Icelandair
Fri, Feb 13 - Tue, Feb 17
RDU
Raleigh
LHR
London
$474 Roundtrip, found 2 days ago
$474
Roundtrip
found 2 days ago
Select Icelandair flight, departing Fri, Feb 13 from Raleigh to London, returning Tue, Feb 17, priced at $474 found 2 days ago
Lufthansa
Wed, Oct 1 - Fri, Oct 10
RDU
Raleigh
LHR
London
$509 Roundtrip, found 3 days ago
$509
Roundtrip
found 3 days ago
Select Lufthansa flight, departing Wed, Oct 1 from Raleigh to London, returning Fri, Oct 10, priced at $509 found 3 days ago
British Airways
Wed, Oct 1 - Fri, Oct 10
RDU
Raleigh
LHR
London
$519 Roundtrip, found 3 days ago
$519
Roundtrip
found 3 days ago
Select British Airways flight, departing Wed, Oct 1 from Raleigh to London, returning Fri, Oct 10, priced at $519 found 3 days ago
Virgin Atlantic
Wed, Aug 27 - Mon, Sep 1
RDU
Raleigh
LHR
London
$524 Roundtrip, found 4 days ago
$524
Roundtrip
found 4 days ago
Select Virgin Atlantic flight, departing Wed, Aug 27 from Raleigh to London, returning Mon, Sep 1, priced at $524 found 4 days ago
Lufthansa
Wed, Oct 1 - Fri, Oct 10
RDU
Raleigh
LHR
London
$534 Roundtrip, found 3 days ago
$534
Roundtrip
found 3 days ago
Select Lufthansa flight, departing Wed, Oct 1 from Raleigh to London, returning Fri, Oct 10, priced at $534 found 3 days ago
United
Wed, Oct 8 - Mon, Oct 13
RDU
Raleigh
LHR
London
$559 Roundtrip, found 1 day ago
$559
Roundtrip
found 1 day ago
Select United flight, departing Wed, Oct 8 from Raleigh to London, returning Mon, Oct 13, priced at $559 found 1 day ago
American Airlines
Wed, Oct 8 - Mon, Oct 13
RDU
Raleigh
LHR
London
$564 Roundtrip, found 1 day ago
$564
Roundtrip
found 1 day ago
Select American Airlines flight, departing Wed, Oct 8 from Raleigh to London, returning Mon, Oct 13, priced at $564 found 1 day ago
Iberia
Wed, Oct 8 - Mon, Oct 13
RDU
Raleigh
LHR
London
$564 Roundtrip, found 1 day ago
$564
Roundtrip
found 1 day ago
Select Iberia flight, departing Wed, Oct 8 from Raleigh to London, returning Mon, Oct 13, priced at $564 found 1 day ago
Scandinavian Airlines
Fri, Jan 30 - Mon, Feb 2
RDU
Raleigh
LHR
London
$598 Roundtrip, found 1 day ago
$598
Roundtrip
found 1 day ago
Select Scandinavian Airlines flight, departing Fri, Jan 30 from Raleigh to London, returning Mon, Feb 2, priced at $598 found 1 day ago

Find the cheapest month to fly from Raleigh (RDU) to London (LHR)

October is typically the cheapest month to fly

From $504 - $909 per traveler.

Graph displaying average flight prices per month

Alternative airports near London

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Gatwick LGW. Average driving time to city center is 52 minutes. Flights from $1,242
LGW
Gatwick
Average driving time to city center52 min
Flights from $1,242
Select flight to London City LCY. Closest option available. Average driving time to city center is 21 minutes. Flights from $860
LCY
London City
Closest
Average driving time to city center21 min
Flights from $860
Flights from Raleigh (RDU) to London (LHR)
Origin airport
Raleigh - Durham Intl.
Destination airport
Heathrow
Airlines serving
Aer Lingus, Air Canada, Air France, American Airlines, Austrian Airlines, British Airways, Brussels Airlines, Delta, Finnair, Iberia, Icelandair, JetBlue Airways, KLM, Lufthansa, Scandinavian Airlines, TAP Portugal, United, Virgin Atlantic
Roundtrip price
$423
Distance
3862 mi
Average flight time
7 hours 35 mins

Raleigh to London Flights

The cheapest times to fly from Raleigh to London

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Raleigh to London are during the month of April. You can find some of the cheapest flights from Raleigh to London with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Raleigh to London

Sunday is one of the best days to book for cheap flights from Raleigh to London: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Raleigh to London

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Raleigh to London in 2025. You can also book with separate airlines for your outbound and return journeys, from $339 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Raleigh to London flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Raleigh to London airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Raleigh - Durham Intl. Airport (RDU) to Heathrow Airport (LHR) cost?
Snag a cheap one-way flight from $339 or cheap return flight from $423 from Raleigh - Durham Intl. Airport (RDU) to Heathrow Airport (LHR) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight deals on this route.
What is the cheapest month to fly from Raleigh - Durham Intl. Airport (RDU) to Heathrow Airport (LHR)?
The cheapest month to fly from RDU to LHR is April, when there's less demand. Off-peak season is generally when you'll find lower airfares between these airports.
Which airlines fly direct from Raleigh - Durham Intl. Airport (RDU) to Heathrow Airport (LHR)?
When setting off from Raleigh - Durham Intl. Airport (RDU), you can take a nonstop flight to Heathrow Airport (LHR) with American Airlines.
What is the cheapest airline that flies from Raleigh - Durham Intl. Airport (RDU) to Heathrow Airport (LHR)?
To find the cheapest airline flying from RDU to LHR, use Expedia's filter tool. Tailor your search based on your travel needs, such as preferred carriers and number of stops. You can then sort your results by "Price (lowest to highest)" to discover the cheapest flight right away.
How many flights per day from Raleigh - Durham Intl. Airport (RDU) to Heathrow Airport (LHR)?
On average, only 1 direct flight departs each day from Raleigh - Durham Intl. Airport (RDU) to Heathrow Airport (LHR). Need other options? Use our filter tool to discover flights with layovers and squeeze in a visit to another city along the way.
What are the most popular departure times for flights from Raleigh - Durham Intl. Airport (RDU) to Heathrow Airport (LHR)?
More people fly between RDU and LHR at 9 PM than at any other time. Prefer a quieter experience? Travel outside of rush hours and you could save on your fare as well.
What day of the week has the most flights from RDU to LHR?
Wednesday offers the most flights from Raleigh - Durham Intl. Airport (RDU) to Heathrow Airport (LHR). Consider traveling on this day and you'll have a greater chance of finding a departure that fits your itinerary.
What is the earliest flight from Raleigh - Durham Intl. Airport (RDU) to Heathrow Airport (LHR)?
The first flight of the day departing from Raleigh - Durham Intl. Airport (RDU) is at around 9:35PM UTC-5. Board this flight and you'll reach Heathrow Airport (LHR) at approximately 10:00AM UTC+0. The total travel time is 7h 25m.
How long does it take to fly from Raleigh - Durham Intl. Airport (RDU) to Heathrow Airport (LHR)?
It takes about 7 hours and 25 minutes to travel the 3,900 mi from RDU to LHR.
What airline has the least delays from RDU to LHR?
With 86% of flights generally arriving on schedule, British Airways has the best on-time performance for direct flights from Raleigh - Durham Intl. Airport (RDU) to Heathrow Airport (LHR). To keep track of your flight status and receive notifications if anything changes, head to the Expedia App.
What is the best time to fly from Raleigh - Durham Intl. Airport (RDU) to Heathrow Airport (LHR)?
To reach Heathrow Airport (LHR) without delays, pick a flight that leaves Raleigh - Durham Intl. Airport (RDU) before 3 PM. The chance of cancellations is 22% higher, on average, for departures after this hour.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
What airports do you fly into for London from Raleigh - Durham Intl. Airport (RDU)?
Compare your flight options from Raleigh - Durham Intl. Airport (RDU) to Heathrow Airport (LHR). This is the only airport in London you can touch down at if you're taking a direct flight.
Is it cheaper to buy a plane ticket from Raleigh - Durham Intl. Airport (RDU) to Heathrow Airport (LHR) last-minute?
Booking your flight from RDU to LHR shortly before your journey is usually more expensive. However, if there's some wiggle room with your travel times and dates, you could grab a cheap last-minute fare.
Is it cheaper to book a RDU to LHR flight and hotel package?
Compared with arranging flights and hotels separately, booking a RDU to LHR flight and hotel package with Expedia could result in significant savings. Better still, managing everything in one place takes the hassle out of planning your trip. Just secure your flights and select from our wide range of stays, then personalize your trip with extras like car rentals and activities.
Can I cancel or change the date of my flight from Raleigh - Durham Intl. Airport (RDU) to Heathrow Airport (LHR)?
If you reserved your RDU to LHR flight within the last 24 hours, you may be able to cancel or modify it without any fees. Depending on the airline and the ticket type you purchased, additional charges may apply for changes after that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal for more details.

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*Available to One Key members.