Cheap Flights from New Orleans (MSY) to London (LHR)

Popular airlines from Louis Armstrong New Orleans Intl. Airport (MSY) to Heathrow Airport (LHR)

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Find the cheapest month to fly from New Orleans (MSY) to London (LHR)

March is typically the cheapest month to fly

From $497 - $1,043 per traveler.

Graph displaying average flight prices per month

Flights from New Orleans (MSY) to London (LHR)
Origin airport
Louis Armstrong New Orleans 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, Royal Air Maroc, Scandinavian Airlines, TAP Portugal, United, Virgin Atlantic
Roundtrip price
$501
Distance
4620 mi
Average flight time
8 hours 50 mins

New Orleans to London Flights

The cheapest times to fly from New Orleans 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 New Orleans to London are during the month of . You can find some of the cheapest flights from New Orleans to London with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from New Orleans to London

Sunday is one of the best days to book for cheap flights from New Orleans 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 New Orleans 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 New Orleans to London in 2025. You can also book with separate airlines for your outbound and return journeys, from 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 New Orleans 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 New Orleans 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 Louis Armstrong New Orleans Intl. Airport (MSY) to Heathrow Airport (LHR) cost?
You can score cheap return fares from Louis Armstrong New Orleans Intl. Airport (MSY) to Heathrow Airport (LHR) starting at $574. Snag a seat and get ready to go. This information is based on the cheapest price found on Expedia for this return journey departing within the next three months. This airfare is for a British Airways flight leaving MSY on August 1 2025 and touching down at LHR. The price was last updated on July 5 2025 and has not changed since.
What is the cheapest month to fly from MSY to LHR?
The cheapest flights from MSY to LHR are usually during off-peak season, when demand is lower. To save money, avoid flying during public holidays, school breaks and major local events.
Which airlines fly direct from Louis Armstrong New Orleans Intl. Airport (MSY) to Heathrow Airport (LHR)?
When flying out of Louis Armstrong New Orleans Intl. Airport (MSY), you can take a nonstop flight to Heathrow Airport (LHR) with British Airways.
What is the cheapest airline that flies from MSY to LHR?
Book a flight from MSY to LHR with British Airways. This airline currently offers the cheapest one-way ticket on this route, starting from $441. This fare is based on the lowest price found on Expedia departing within the next three months. The flight takes off from MSY on September 14 2025. Prices were last updated on July 5 2025 and have not changed since.
How many flights per day from Louis Armstrong New Orleans Intl. Airport (MSY) to Heathrow Airport (LHR)?
On average, there are 4 direct flights taking off from Louis Armstrong New Orleans Intl. Airport (MSY) to Heathrow Airport (LHR) per week. If you can't see one that fits your schedule, think about booking a flight with a layover. Filter your search results on Expedia to include one or two stops and choose the next best alternative.
What are the most popular departure times for flights from Louis Armstrong New Orleans Intl. Airport (MSY) to Heathrow Airport (LHR)?
The 7 PM departures from MSY to LHR are typically the busiest. Prices can be higher for these popular slots. If you want to save money, choose a less crowded time to fly.
What day of the week has the most flights from MSY to LHR?
If you fly on a Friday, you'll get the biggest range of choices for flights from Louis Armstrong New Orleans Intl. Airport (MSY) to Heathrow Airport (LHR).
What is the earliest flight from Louis Armstrong New Orleans Intl. Airport (MSY) to Heathrow Airport (LHR)?
Louis Armstrong New Orleans Intl. Airport (MSY)'s earliest flight to Heathrow Airport (LHR) takes off at approximately 7:45PM UTC-6. With a travel time of 8h 50m, you'll touch down at around 10:35AM UTC+0.
How long does it take to fly from Louis Armstrong New Orleans Intl. Airport (MSY) to Heathrow Airport (LHR)?
The average flight time from MSY to LHR is 8 hours and 50 minutes, covering a total distance of 4,600 mi.
What is the best time to fly from Louis Armstrong New Orleans Intl. Airport (MSY) to Heathrow Airport (LHR)?
To land at Heathrow Airport (LHR) on schedule, pick a flight that leaves from Louis Armstrong New Orleans Intl. Airport (MSY) 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 Louis Armstrong New Orleans Intl. Airport (MSY)?
If you're taking a direct flight from Louis Armstrong New Orleans Intl. Airport (MSY) to London, Heathrow Airport (LHR) is the only airport you can touch down at.
Is it cheaper to buy a plane ticket from Louis Armstrong New Orleans Intl. Airport (MSY) to Heathrow Airport (LHR) last-minute?
Booking your flight from MSY to LHR right before your journey is generally more expensive. But if you're flexible with your departure dates and times, you could snag a cheap last-minute fare.
Is it cheaper to book a MSY to LHR flight and hotel package?
You'll typically save money by booking a MSY to LHR flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's easy to manage everything in one place. After selecting your ideal accommodations and flights, consider adding extras including activities, tours and car rentals.
Can I cancel or change the date of my flight from Louis Armstrong New Orleans Intl. Airport (MSY) to Heathrow Airport (LHR)?
If you booked your MSY to LHR flight in the last 24 hours, you may be able to modify or cancel it without fees. Depending on the airline and the fare 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, visit our Customer Service portal for more information.

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