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Cheap flights from Louisiana to London Heathrow Airport from £175

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 17/10. Fares are subject to change and may not be available on all flights or dates of travel.
MSY — LHR
12 Oct — 19 Oct1
1 adult
1 adult, Economy

Cheap flight deals from Louisiana to Heathrow

Keep the following information in mind while searching for Louisiana to Heathrow flight deals. Data was last updated 12 September 2025.

Round-trip from

£420

One-way from

£175

Popular in

June

Cheapest in

October

Average price

£560

Good one-way deal

£377 or less
Delta
  • Delta
  • 22/9-1/10
  • 3 total stops
  • 34h 23m total
  • Louisiana to London
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17/10
  • 17/10
  • 2 total stops
  • 25h 22m total
  • Louisiana to London
Search Deals
Highest demand for flights based on searches. 21% potential increase in price (£129 potential increase over avg. return price).
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Cheapest flight prices on average. 4% potential price decrease (£21 potential savings vs. average return price).
Search Deals
Average for round-trip flights in September 2025
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Price to beat on a one-way flight from Louisiana to London Heathrow.
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Find flight deals from Louisiana to Heathrow

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 12 September 2025.

Mon 22/916:39BTR - LHR
1 stop14h 51mDelta
Wed 1/1008:40LHR - BTR
2 stops19h 32mDelta
Deal found 10/9£420
Wed 1/1013:32BTR - LHR
2 stops14h 28mDelta
Tue 7/1008:40LHR - BTR
2 stops19h 07mDelta
Deal found 11/9£424
Wed 3/1214:03MSY - LHR
1 stop13h 57mFinnair
Tue 9/1213:45LHR - MSY
Nonstop10h 10mFinnair
Deal found 11/9£425
Mon 22/918:50BTR - LHR
1 stop12h 40mKLM
Wed 1/1009:20LHR - BTR
1 stop18h 52mKLM
Deal found 11/9£425
Wed 1/1005:15MSY - LHR
2 stops22h 20mAir Canada
Wed 8/1009:30LHR - MSY
2 stops19h 45mAir Canada
Deal found 11/9£426
Sun 12/1007:45MSY - LHR
1 stop17h 30mDelta
Tue 28/1009:00LHR - MSY
2 stops19h 04mDelta
Deal found 10/9£427
Wed 24/905:25MSY - LHR
1 stop19h 50mDelta
Fri 3/1011:45LHR - MSY
2 stops17h 44mDelta
Deal found 10/9£427
Wed 1/1010:43SHV - LHR
2 stops16h 32mDelta
Fri 10/1013:05LHR - SHV
1 stop13h 13mDelta
Deal found 10/9£428
Wed 24/911:15MSY - LHR
1 stop16h 00mDelta
Wed 8/1006:30LHR - MSY
2 stops18h 31mDelta
Deal found 11/9£428
Tue 21/1009:15MSY - LHR
2 stops39h 05mMultiple Airlines
Wed 29/1018:00LHR - MSY
1 stop28h 17mMultiple Airlines
Deal found 11/9£429
Sun 12/1009:15MSY - LHR
1 stop20h 20mUnited Airlines
Tue 21/1017:40LHR - MSY
1 stop23h 22mUnited Airlines
Deal found 11/9£430
Wed 3/1215:27MSY - LHR
2 stops13h 58mVirgin Atlantic
Tue 9/1211:30LHR - MSY
2 stops16h 52mVirgin Atlantic
Deal found 11/9£430

Cheapflights Fare Finder

 
Customise your flight search to find flights from Louisiana to Heathrow that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 12 September 2025.
Use the filters below to find and compare flights from Louisiana to London Heathrow Airport that are best for you.

Fly from

Louisiana

Fly to

Heathrow

Route

Depart

Return

Price

Baton RougeLondon

BTR - LHR

BTRLHR

Baton Rouge Ryan

Mon 22/9

16:39-13:30

1 stop14h 51m

London Heathrow

Wed 1/10

08:40-22:12

2 stops19h 32m

£420

Baton RougeLondon

BTR - LHR

BTRLHR

Baton Rouge Ryan

Wed 1/10

16:39-13:30

1 stop14h 51m

London Heathrow

Tue 7/10

09:55-21:47

2 stops17h 52m

£420

Baton RougeLondon

BTR - LHR

BTRLHR

Baton Rouge Ryan

Mon 22/9

18:50-13:30

1 stop12h 40m

London Heathrow

Wed 1/10

09:20-22:12

1 stop18h 52m

£425

Baton RougeLondon

BTR - LHR

BTRLHR

Baton Rouge Ryan

Wed 1/10

16:39-13:30

1 stop14h 51m

London Heathrow

Tue 7/10

15:15-21:47

1 stop12h 32m

£425

New OrleansLondon

MSY - LHR

MSYLHR

New Orleans Louis Armstrong

Tue 9/12

09:18-07:50

1 stop16h 32m

London Heathrow

Tue 16/12

06:20-19:04

2 stops18h 44m

£427

New OrleansLondon

MSY - LHR

MSYLHR

New Orleans Louis Armstrong

Wed 3/12

15:27-07:50

1 stop10h 23m

London Heathrow

Tue 9/12

09:00-22:22

2 stops19h 22m

£427

New OrleansLondon

MSY - LHR

MSYLHR

New Orleans Louis Armstrong

Wed 24/9

05:25-07:15

1 stop19h 50m

London Heathrow

Fri 3/10

11:45-23:29

2 stops17h 44m

£427

New OrleansLondon

MSY - LHR

MSYLHR

New Orleans Louis Armstrong

Tue 14/10

11:17-09:15

1 stop15h 58m

London Heathrow

Tue 21/10

09:55-20:17

2 stops16h 22m

£428

ShreveportLondon

SHV - LHR

SHVLHR

Shreveport

Wed 1/10

10:43-09:15

2 stops16h 32m

London Heathrow

Fri 10/10

13:05-20:18

1 stop13h 13m

£428

Baton RougeLondon

BTR - LHR

BTRLHR

Baton Rouge Ryan

Wed 1/10

10:27-06:20

2 stops13h 53m

London Heathrow

Wed 29/10

08:55-19:31

1 stop15h 36m

£429

Flights are sorted by cheapest return flights first.

Deals found on 11/9

Showing 1-10 of 44 results
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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.
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

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

Currently, January is the cheapest month in which you can book a flight from Louisiana to London Heathrow Airport (average of £112). Flying from Louisiana to London Heathrow Airport in August is currently the most expensive (average of £164). 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?

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 12 September 2025.

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.

Related info for your journey

Find useful and relevant information for your journey from Louisiana to Heathrow. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • 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 12h 40m. Fly via Delta, KLM, or United Airlines 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, Lafayette Regional - 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 (64%), Aer Lingus (64%) or Finnair (64%) 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 £500, our data indicates the cheapest price to be £361. The most popular route (New Orleans Louis Armstrong - London Heathrow), is priced around £417.

  • 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, January is the cheapest month in which you can book a flight from Louisiana to London Heathrow Airport (average of £112). Flying from Louisiana to London Heathrow Airport in August is currently the most expensive (average of £164). 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.

See more FAQs

Travelling to a place near London Heathrow Airport?

Book flights to London Heathrow Airport if you plan to visit one of these locations
Milton Keynes
Croydon
Hounslow
Gatwick
Slough
Northampton
Luton
Deal
Wembley
Ilford
Crawley
Hayes
Watford
Folkestone
Winchester
Chichester
Ipswich
Swindon
Dartford
Eastbourne

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.
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Top airline flying from Louisiana to Heathrow

Discover the top airline that operate flights from Louisiana to Heathrow. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 858,174 searches. Data last updated 12 September 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£426Average£588FlexibilityNo cancel feeOn-time70%
Search British Airways flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

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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