Cheap flights from New Orleans to London from $319

The month of February is, on average, the cheapest month to fly to London Heathrow Airport from New Orleans, with most prices found around $640. If you’re not able to fly to London Heathrow Airport in February, then March is your next best option. Flight prices from New Orleans to London Heathrow Airport during March average around $812.

Our data shows that Tuesday is the least expensive day to fly to London Heathrow Airport. Tickets to fly out on this day can be as low as $823. The most expensive day to fly to London Heathrow Airport is Saturday, with ticket prices averaging around $1,190.

Fly from New Orleans Louis Armstrong to London Heathrow for the best New Orleans Louis Armstrong - London Heathrow flight prices

You are more likely to see cheaper flights to London Heathrow Airport from New Orleans when booking weeks ahead of your departure date. In general, you can expect to find flights to London Heathrow Airport for around $1,038 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London Heathrow Airport from New Orleans for as low as $783 on momondo.

There are 3 cabin classes available to choose from on New Orleans to London Heathrow Airport flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

You could potentially save up to 4% on your flight if you consider stops on a New Orleans to London Heathrow Airport flight.

JetBlue, United Airlines, and Delta are the most popular carriers operating from New Orleans Louis Armstrong to London Heathrow

British Airways, American Airlines and Virgin Atlantic are the top three most popular airlines that fly to London Heathrow Airport from New Orleans according to our data. British Airways is the first choice among our users, with 61% of people opting to fly with this airline when traveling to London Heathrow Airport. Keep in mind that there are 8 different airlines that fly to London Heathrow Airport on a routine basis, so you have a few additional options to choose from.

Atlanta (ATL) was the most common stop: 50% of momondo users choosing 1-stop flights on this route connected there.

Flights via Atlanta (ATL) offer the lowest average round-trip price of $1,089.

Flights connecting via Atlanta (ATL) have the shortest average one-way travel time: 10h 30m.

Atlanta (ATL) has the shortest average layover time for this route: 1h 32m.

2 flights are operational daily from New Orleans to London Heathrow Airport as of August 2026. The most popular departure time for this route is 9:00PM, with 100% of flights per day taking off in the evening.

As of August 2026, there are 14 flights per week flying from New Orleans to London Heathrow Airport. The most common day of the week flights depart is Wed, with 36% of flights taking off on this day.