How long is the flight from Louisiana to London Heathrow Airport?

There are many flights that can get you from Louisiana to London Heathrow Airport in 17h 43m. Fly via United Airlines, Delta, or KLM to get the fastest option. Louisiana and London Heathrow Airport are separated by a distance of 4625 mi. This flight may include one or multiple stops.

In terms of precipitation, rainfall in London Heathrow Airport ranges from 40.0 - 70.0 inches per month. January is typically the wettest month, when rainfall can reach 70.0 mm. July is typically the driest time to visit London Heathrow Airport when rainfall is around 40.0 mm.

If weather is an important factor for your trip to London Heathrow Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 17.0 C. Travellers hoping to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 4.0 C).

What are the most popular routes from Louisiana to London Heathrow Airport?

Most travelers choose New Orleans Louis Armstrong - London Heathrow, Shreveport - London Heathrow or Baton Rouge Ryan - London Heathrow when deciding on the best route from Louisiana to London Heathrow Airport.

What are the cheapest flights from Louisiana to London Heathrow Airport?

Looking for the cheapest flight from Louisiana to London Heathrow Airport? While on average our users pay £292, our data indicates the cheapest price to be £255. The most popular route (New Orleans Louis Armstrong - London Heathrow), is priced around £549.

What are the most reliable airlines from Louisiana to London Heathrow Airport?

No one likes to see their flight delayed. When booking a flight from Louisiana to London Heathrow Airport consider choosing American Airlines (84%), Aer Lingus (84%) or Finnair (84%) as they are the most reliable in getting you off to your destination on time.

Can I find deals for flights from Louisiana to Heathrow that include hotel bookings?

Yes. In addition to deals on Louisiana to Heathrow flights, Cheapflights offers holiday packages that include both flights and hotel.

How can I find direct flights from Louisiana to Heathrow?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Louisiana to Heathrow.

Can I find deals for business class flights from Louisiana to Heathrow?

Yes. Cheapflights offers flight deals from Louisiana to Heathrow by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

£238+ Cheap Flights from Louisiana to London Heathrow Airport

Cheap flight deals from Louisiana to Heathrow

Enter your travel dates to find the best prices.

Cheapest

Best

Direct

Last-minute

One-way

Cheapest flights from Louisiana to Heathrow
Explore the most affordable flight options available from Louisiana to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 7 August 2026.

Sun 8/1105:00 -

2 stops18h 55m

Mon 9/1111:05 -

2 stops39h 21m

Deal found 4/8£549

Mon 23/1107:23 -

1 stop18h 17m

Wed 25/1107:30 -

2 stops21h 15m

Deal found 6/8£560

Mon 23/1114:01 -

2 stops15h 59m

Wed 25/1111:10 -

2 stops58h 28m

Deal found 3/8£621

Tue 10/1106:00 -

1 stop18h 55m

Mon 16/1109:20 -

1 stop14h 57m

Deal found 2/8£621

Tue 10/1119:55 -

Nonstop8h 40m

Mon 16/1107:25 -

1 stop15h 27m

Deal found 2/8£632

Tue 3/1116:13 -

1 stop33h 27m

Fri 6/1106:35 -

2 stops19h 08m

Deal found 2/8£632

Fri 11/918:10 -

1 stop30h 20m

Tue 29/908:40 -

1 stop34h 10m

Deal found 3/8£634

Mon 2/1116:00 -

1 stop11h 00m

Thu 12/1106:30 -

2 stops19h 39m

Deal found 6/8£635

Fri 4/914:30 -

1 stop34h 00m

Thu 17/908:40 -

1 stop34h 15m

Deal found 3/8£640

Sun 1/1108:00 -

2 stops30h 45m

Tue 10/1107:25 -

1 stop15h 27m

Deal found 3/8£641

Wed 4/1109:15 -

1 stop16h 25m

Fri 13/1106:50 -

2 stops21h 55m

Deal found 6/8£647

Sun 13/918:10 -

1 stop30h 20m

Tue 15/908:40 -

1 stop34h 10m

Deal found 5/8£649

Best flights from Louisiana to Heathrow
Discover carefully curated flight deals from Louisiana to Heathrow that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 7 August 2026.

Tue 3/1114:01 -

2 stops35h 09m

Fri 6/1106:35 -

2 stops19h 08m

Deal found 2/8£634

Wed 25/1106:00 -

1 stop21h 00m

Thu 10/1210:00 -

2 stops18h 48m

Deal found 3/8£657

Mon 5/1013:32 -

1 stop17h 43m

Wed 14/1006:30 -

2 stops16h 42m

Deal found 4/8£658

Wed 21/1008:16 -

1 stop16h 04m

Tue 27/1008:20 -

1 stop14h 55m

Deal found 3/8£678

Thu 24/906:18 -

1 stop23h 02m

Fri 9/1006:30 -

2 stops16h 44m

Deal found 4/8£695

Fri 30/1010:14 -

1 stop17h 01m

Wed 4/1111:55 -

1 stop16h 41m

Deal found 5/8£716

Wed 21/1015:20 -

2 stops23h 00m

Wed 28/1020:35 -

2 stops32h 35m

Deal found 5/8£733

Mon 30/1117:52 -

1 stop11h 48m

Thu 10/1206:30 -

2 stops16h 41m

Deal found 3/8£657

Mon 30/1107:10 -

1 stop18h 30m

Thu 10/1212:05 -

1 stop15h 35m

Deal found 3/8£669

Wed 21/1014:17 -

2 stops25h 58m

Sun 1/1106:15 -

2 stops19h 12m

Deal found 5/8£704

Wed 25/1107:00 -

1 stop16h 55m

Fri 4/1210:00 -

1 stop13h 25m

Deal found 3/8£669

Mon 5/1012:53 -

2 stops14h 57m

Wed 18/1106:30 -

2 stops22h 18m

Deal found 6/8£746

Sat 7/1119:00 -

1 stop19h 10m

Sat 14/1106:30 -

2 stops20h 09m

Deal found 6/8£708

Mon 28/906:35 -

2 stops23h 20m

Fri 2/1013:05 -

2 stops16h 50m

Deal found 5/8£784

Wed 25/1107:10 -

1 stop21h 05m

Wed 9/1212:05 -

1 stop13h 12m

Deal found 3/8£669

Wed 14/1018:50 -

1 stop11h 20m

Wed 21/1016:00 -

Nonstop10h 00m

Deal found 7/8£744

Fri 30/1017:09 -

1 stop10h 51m

Fri 13/1112:40 -

1 stop13h 29m

Deal found 6/8£710

Tue 10/1105:00 -

2 stops20h 10m

Mon 16/1117:30 -

2 stops32h 13m

Deal found 2/8£682

Mon 14/911:41 -

1 stop15h 24m

Mon 21/916:25 -

1 stop23h 15m

Deal found 3/8£750

Sat 28/1117:52 -

1 stop30h 33m

Mon 7/1208:55 -

1 stop14h 16m

Deal found 4/8£716

Mon 1/216:08 -

1 stop12h 07m

Fri 5/215:00 -

2 stops28h 21m

Deal found 3/8£688

Wed 2/921:50 -

Nonstop8h 50m

Wed 9/916:00 -

Nonstop10h 00m

Deal found 2/8£774

Wed 2/913:27 -

2 stops13h 48m

Wed 9/909:55 -

2 stops17h 58m

Deal found 2/8£718

Mon 16/1109:20 -

1 stop16h 20m

Wed 18/1112:05 -

1 stop15h 17m

Deal found 6/8£693

Fri 4/921:50 -

Nonstop8h 50m

Wed 9/916:00 -

Nonstop10h 00m

Deal found 2/8£776

Wed 14/1015:16 -

2 stops14h 49m

Mon 19/1006:30 -

2 stops21h 41m

Deal found 4/8£719

Sat 7/1117:26 -

2 stops21h 54m

Sat 21/1106:50 -

2 stops19h 45m

Deal found 3/8£708

Fri 30/1013:05 -

2 stops13h 50m

Wed 4/1110:00 -

2 stops18h 09m

Deal found 5/8£720

Sat 28/1117:54 -

1 stop31h 56m

Mon 7/1212:05 -

1 stop13h 12m

Deal found 3/8£710

Mon 1/218:33 -

1 stop11h 42m

Fri 5/214:45 -

1 stop14h 12m

Deal found 5/8£863

Find flight deals from Louisiana to Heathrow

Round-trip from	£549
One-way from	£238
Popular in	June
Cheapest in	October
Average price	£806
Good one-way deal	£292 or less

United Airlines
8/11-9/11
4 total stops
58h 16m total
Louisiana to London

Search Deals

JetBlue
14/9
1 total stop
17h 15m total
Louisiana to London

Search Deals

Highest demand for flights based on searches. 27% potential increase in price (£205 potential increase over avg. return price).

Search Deals

Cheapest flight prices on average. 4% potential price decrease (£22 potential savings vs. average return price).

Search Deals

Average for round-trip flights in August 2026

Search Deals

Price to beat on a one-way flight from Louisiana to London Heathrow.

Search Deals

Cheapflights Fare Finder

Use the filters below to find and compare flights from Louisiana to London Heathrow Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

Baton RougeLondon

BTR Baton Rouge Ryan - LHR London Heathrow

BTRLHR

Baton Rouge Ryan

Tue 3/11

14:01-07:10

2 stops35h 09m

London Heathrow

Fri 6/11

06:35-19:43

2 stops19h 08m

£634

MonroeLondon

MLU Monroe Huenefeld - LHR London Heathrow

MLULHR

Monroe Huenefeld

Wed 25/11

06:00-09:00

1 stop21h 00m

London Heathrow

Thu 10/12

10:00-22:48

2 stops18h 48m

£657

MonroeLondon

MLU Monroe Huenefeld - LHR London Heathrow

MLULHR

Monroe Huenefeld

Mon 30/11

17:52-11:40

1 stop11h 48m

London Heathrow

Thu 10/12

06:30-17:11

2 stops16h 41m

£657

Baton RougeLondon

BTR Baton Rouge Ryan - LHR London Heathrow

BTRLHR

Baton Rouge Ryan

Mon 5/10

13:32-13:15

1 stop17h 43m

London Heathrow

Wed 14/10

06:30-17:12

2 stops16h 42m

£658

ShreveportLondon

SHV Shreveport - LHR London Heathrow

SHVLHR

Shreveport

Mon 30/11

07:10-07:40

1 stop18h 30m

London Heathrow

Thu 10/12

12:05-21:40

1 stop15h 35m

£669

ShreveportLondon

SHV Shreveport - LHR London Heathrow

SHVLHR

Shreveport

Wed 25/11

07:00-05:55

1 stop16h 55m

London Heathrow

Fri 4/12

10:00-17:25

1 stop13h 25m

£669

ShreveportLondon

SHV Shreveport - LHR London Heathrow

SHVLHR

Shreveport

Wed 25/11

07:10-10:15

1 stop21h 05m

London Heathrow

Wed 9/12

12:05-19:17

1 stop13h 12m

£669

ShreveportLondon

SHV Shreveport - LHR London Heathrow

SHVLHR

Shreveport

Wed 21/10

08:16-06:20

1 stop16h 04m

London Heathrow

Tue 27/10

08:20-18:15

1 stop14h 55m

£678

Baton RougeLondon

BTR Baton Rouge Ryan - LHR London Heathrow

BTRLHR

Baton Rouge Ryan

Tue 10/11

05:00-07:10

2 stops20h 10m

London Heathrow

Mon 16/11

17:30-19:43

2 stops32h 13m

£682

LafayetteLondon

LFT Lafayette Regional - LHR London Heathrow

LFTLHR

Lafayette Regional

Mon 1/2

16:08-10:15

1 stop12h 07m

London Heathrow

Fri 5/2

15:00-13:21

2 stops28h 21m

£688

Flights are sorted by cheapest return flights first.

Deals found on 2/8

Showing 1-10 of 57 resultsSorted by cheapest first

...

Best time to book a flight from Louisiana to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from Louisiana with our price prediction graph.

MSY-LHR

LFT-LHR

MLU-LHR

SHV-LHR

BTR-LHR

Estimated return price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Louisiana to London Heathrow Airport

USLA-LHR

MSY-LHR

LFT-LHR

MLU-LHR

SHV-LHR

What is the cheapest month to book a flight from Louisiana to London Heathrow Airport?

Currently, February is the cheapest month in which you can book a flight from Louisiana to London Heathrow Airport (average of £500). Flying from Louisiana to London Heathrow Airport in July is currently the most expensive (average of £1,112). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from LA to LHR?

When flying from Louisiana to London Heathrow Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

How much does it cost for a return flight from Louisiana to London Heathrow Airport?

Airfare is below average for this route at the moment.

Louisiana to London Heathrow Airport flights typically cost between £635 and £731 in November.
The cheapest return price found within the last 5 days was £549 on United Airlines (8 Nov–9 Nov).

How far ahead should I book a flight from Louisiana to London Heathrow Airport?

To ensure you get the cheapest price possible for a flight from Louisiana to London Heathrow Airport, you should look to book at least 78 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

Related info for your journey

How long is the flight from Louisiana to London Heathrow Airport?
There are many flights that can get you from Louisiana to London Heathrow Airport in 17h 43m. Fly via United Airlines, Delta, or KLM to get the fastest option. Louisiana and London Heathrow Airport are separated by a distance of 4625 mi. This flight may include one or multiple stops.
What are the most popular routes from Louisiana to London Heathrow Airport?
Most travelers choose New Orleans Louis Armstrong - London Heathrow, Shreveport - London Heathrow or Baton Rouge Ryan - London Heathrow when deciding on the best route from Louisiana to London Heathrow Airport.
What are the most reliable airlines from Louisiana to London Heathrow Airport?
No one likes to see their flight delayed. When booking a flight from Louisiana to London Heathrow Airport consider choosing American Airlines (84%), Aer Lingus (84%) or Finnair (84%) as they are the most reliable in getting you off to your destination on time.
What are the cheapest flights from Louisiana to London Heathrow Airport?
Looking for the cheapest flight from Louisiana to London Heathrow Airport? While on average our users pay £292, our data indicates the cheapest price to be £255. The most popular route (New Orleans Louis Armstrong - London Heathrow), is priced around £549.
Can I find deals for flights from Louisiana to Heathrow that include hotel bookings?
Yes. In addition to deals on Louisiana to Heathrow flights, Cheapflights offers holiday packages that include both flights and hotel.
How can I find direct flights from Louisiana to Heathrow?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Louisiana to Heathrow.
Can I find deals for business class flights from Louisiana to Heathrow?
Yes. Cheapflights offers flight deals from Louisiana to Heathrow by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from Louisiana to London Heathrow Airport?
Currently, February is the cheapest month in which you can book a flight from Louisiana to London Heathrow Airport (average of £500). Flying from Louisiana to London Heathrow Airport in July is currently the most expensive (average of £1,112). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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Alternative routes for Louisiana to Heathrow

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Top 2 airlines flying from Louisiana to Heathrow

Airline	Cheapest	Average	Flexibility	On-time
United Airlines	Cheapest£519	Average£630	FlexibilityNo cancel fee	On-time69%	Search United Airlines flights
Virgin Atlantic	Cheapest£584	Average£710	FlexibilityNo cancel fee	On-time72%	Search Virgin Atlantic flights

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How does Cheapflights help users find flights from Louisiana to Heathrow?

When you search for this flight from Louisiana to Heathrow, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the flight for you.

Why should you use Cheapflights to find cheap flight tickets from Louisiana to Heathrow?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Louisiana to Heathrow for you. Better yet — we are completely free to use.

Can Cheapflights find flights from Louisiana to Heathrow with no change fees?

Yes, we can. To see specific flights from Louisiana to Heathrow with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from Louisiana to Heathrow become cheaper?

Yes, Cheapflights has a feature called Price Alert, which notifies users when flight prices change. Track prices for your flight to Heathrow from Louisiana today and book when prices fit your budget.

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Cheap flights from Louisiana to London Heathrow Airport from £238

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 14/9. Fares are subject to change and may not be available on all flights or dates of travel.

Cheap flight deals from Louisiana to Heathrow

Cheapest flights from Louisiana to HeathrowExplore the most affordable flight options available from Louisiana to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 7 August 2026.

Explore the most affordable flight options available from Louisiana to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 7 August 2026.

Best flights from Louisiana to HeathrowDiscover carefully curated flight deals from Louisiana to Heathrow that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 7 August 2026.

Discover carefully curated flight deals from Louisiana to Heathrow that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 7 August 2026.

Direct flights from Louisiana to HeathrowExplore direct flight options from Louisiana to Heathrow based on user searches, and compare prices and availability for your desired travel dates. Data last updated 7 August 2026.

Explore direct flight options from Louisiana to Heathrow based on user searches, and compare prices and availability for your desired travel dates. Data last updated 7 August 2026.

Last-minute flights from Louisiana to HeathrowDiscover last-minute flight deals from Louisiana to Heathrow. Data last updated 7 August 2026 and is based on user searches.

Discover last-minute flight deals from Louisiana to Heathrow. Data last updated 7 August 2026 and is based on user searches.

One-way flights from Louisiana to HeathrowSearch for one-way flight options from Louisiana to Heathrow. Find affordable one-way fares based on user searches. Data last updated 7 August 2026.

Search for one-way flight options from Louisiana to Heathrow. Find affordable one-way fares based on user searches. Data last updated 7 August 2026.

Find flight deals from Louisiana to Heathrow

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good one-way deal

Cheapflights Fare Finder

Use the filters below to find and compare flights from Louisiana to London Heathrow Airport that are best for you.

Best time to book a flight from Louisiana to Heathrow

Have a flexible travel schedule? Discover the best time to fly to Heathrow from Louisiana with our price prediction graph.

Cheapflights Insights

What is the cheapest month to book a flight from Louisiana to London Heathrow Airport?

What is the cheapest time of day to fly from LA to LHR?

Find hourly flight availability from Louisiana to Heathrow. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 7 August 2026.

When flying from Louisiana to London Heathrow Airport, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

How much does it cost for a return flight from Louisiana to London Heathrow Airport?

Airfare is below average for this route at the moment.

Louisiana to London Heathrow Airport flights typically cost between £635 and £731 in November.The cheapest return price found within the last 5 days was £549 on United Airlines (8 Nov–9 Nov).

How far ahead should I book a flight from Louisiana to London Heathrow Airport?

To ensure you get the cheapest price possible for a flight from Louisiana to London Heathrow Airport, you should look to book at least 78 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

Related info for your journey

How long is the flight from Louisiana to London Heathrow Airport?

What are the most popular routes from Louisiana to London Heathrow Airport?

What are the most reliable airlines from Louisiana to London Heathrow Airport?

What are the cheapest flights from Louisiana to London Heathrow Airport?

Can I find deals for flights from Louisiana to Heathrow that include hotel bookings?

How can I find direct flights from Louisiana to Heathrow?

Can I find deals for business class flights from Louisiana to Heathrow?

What is the cheapest month to book a flight from Louisiana to London Heathrow Airport?

Travelling to a place near London Heathrow Airport?

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Louisiana to Heathrow

See prices for flight routes from nearby airports that may be better suited for you.

Complete your trip

Complete your trip to Heathrow by adding a car hire and/or hotel booking to your travel itinerary.

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Search flights from Louisiana to Heathrow by cabin class

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Other flights to Heathrow

Explore flights to Heathrow departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on 7 August 2026.

Louisiana and Heathrow flights

Browse other Louisiana and Heathrow flight options. Last updated on 7 August 2026.

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Louisiana to Heathrow flights

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Top 2 airlines flying from Louisiana to Heathrow

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How does Cheapflights help users find flights from Louisiana to Heathrow?

Why should you use Cheapflights to find cheap flight tickets from Louisiana to Heathrow?

Can Cheapflights find flights from Louisiana to Heathrow with no change fees?

Can Cheapflights notify me if prices for flights from Louisiana to Heathrow become cheaper?

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Cheapest flights from Louisiana to Heathrow
Explore the most affordable flight options available from Louisiana to Heathrow. Find the lowest fares from popular airlines and budget airlines, with prices last updated on 7 August 2026.

Best flights from Louisiana to Heathrow
Discover carefully curated flight deals from Louisiana to Heathrow that have cost, travel time, and stopovers in mind to ensure you get the best travel experience. Data last updated 7 August 2026.

Direct flights from Louisiana to Heathrow
Explore direct flight options from Louisiana to Heathrow based on user searches, and compare prices and availability for your desired travel dates. Data last updated 7 August 2026.

Last-minute flights from Louisiana to Heathrow
Discover last-minute flight deals from Louisiana to Heathrow. Data last updated 7 August 2026 and is based on user searches.

One-way flights from Louisiana to Heathrow
Search for one-way flight options from Louisiana to Heathrow. Find affordable one-way fares based on user searches. Data last updated 7 August 2026.

Louisiana to London Heathrow Airport flights typically cost between £635 and £731 in November.
The cheapest return price found within the last 5 days was £549 on United Airlines (8 Nov–9 Nov).