What airlines fly to London Heathrow Airport?

British Airways, American Airlines and Iberia are the top three most popular airlines that fly to London Heathrow Airport from Louisville according to our data. British Airways is the first choice among our users, with 52% of people opting to fly with this airline when traveling to London Heathrow Airport. Keep in mind that there are 9 different airlines that fly to London Heathrow Airport on a routine basis, so you have a few additional options to choose from.

What is the cheapest airline that flies from Louisville Intl to London Heathrow?

Aer Lingus and British Airways are the most popular carriers operating from Louisville Intl to London Heathrow

When did momondo last update prices for flights from Louisville Intl Airport to London Heathrow Airport?

Prices for flights from Louisville Intl Airport to London Heathrow Airport refresh daily.

How many operators does momondo search for flights from Louisville Intl Airport to London Heathrow Airport?

As of March 2026, there are 5 operators available to choose from for flights from Louisville Intl Airport to London Heathrow Airport.

How old do you have to be to fly from Louisville Intl Airport to London Heathrow Airport?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Louisville Intl Airport to London Heathrow Airport.

What documentation or ID do you need to fly to London Heathrow Airport?

The travel and health documents you'll need for your trip to London Heathrow Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at London Heathrow Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$429 Cheap Flights from Louisville to London Heathrow Airport in 2026

Q: What is the typical price of a round-trip flight between Louisville and London Heathrow Airport?

Prices are currently low for flights on this route. Typical prices usually range from $1,133 to $734. The lowest price recently found on this route was $833.

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Find the cheapest flights from Louisville to London

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One-way

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Enter your travel dates to find the best prices.

1:00 pm - 6:50 pm

SDF

LHR

24h 50m

3 stops

6:40 am - 11:59 pm

LHR

SDF

22h 19m

2 stops

$833Scandinavian Airlines

Tue, Sep 1 - Thu, Sep 17

11:05 am - 12:10 pm

SDF

LHR

20h 05m

1 stop

7:30 pm - 10:58 pm

LHR

SDF

32h 28m

2 stops

$841Multiple Airlines

Tue, Sep 1 - Wed, Sep 16

5:50 pm - 12:10 pm

SDF

LHR

13h 20m

1 stop

9:15 am - 5:22 pm

LHR

SDF

13h 07m

1 stop

$843British Airways

Tue, Aug 18 - Tue, Aug 25

4:00 pm - 8:00 am

SDF

LHR

11h 00m

1 stop

6:15 am - 10:47 pm

LHR

SDF

21h 32m

2 stops

$844Multiple Airlines

Wed, Aug 26 - Wed, Sep 2

7:43 pm - 6:25 pm

SDF

LHR

17h 42m

2 stops

9:30 am - 7:19 pm

LHR

SDF

14h 49m

2 stops

$846Lufthansa

Tue, Aug 18 - Tue, Aug 25

6:11 pm - 11:15 am

SDF

LHR

12h 04m

1 stop

12:15 pm - 11:01 pm

LHR

SDF

15h 46m

1 stop

$848Multiple Airlines

Sun, Aug 23 - Tue, Sep 1

12:12 pm - 9:30 am

SDF

LHR

16h 18m

2 stops

7:50 am - 7:36 pm

LHR

SDF

16h 46m

2 stops

$849Multiple Airlines

Wed, Aug 26 - Wed, Sep 2

1:00 pm - 6:30 pm

SDF

LHR

24h 30m

2 stops

6:40 am - 11:59 pm

LHR

SDF

22h 19m

2 stops

$859Scandinavian Airlines

Tue, Sep 1 - Thu, Sep 17

4:00 pm - 9:35 am

SDF

LHR

12h 35m

1 stop

5:10 pm - 9:01 am

LHR

SDF

44h 51m

2 stops

$868British Airways

Tue, Sep 8 - Tue, Sep 15

3:59 pm - 12:50 pm

SDF

LHR

15h 51m

1 stop

12:20 pm - 10:58 pm

LHR

SDF

39h 38m

2 stops

$878British Airways

Fri, Sep 11 - Sun, Sep 13

British Airways flights from Louisville to London Heathrow Airport

Our best British Airways deals on Louisville to London Heathrow Airport flight tickets

British Airways

Aug 18

SDF5:50 pmLouisville Intl

13h 20m

1 stop

LHR12:10 pmLondon Heathrow

Aug 25

LHR9:15 amLondon Heathrow

13h 07m

1 stop

SDF5:22 pmLouisville Intl

$843

British Airways

Sep 8

SDF4:00 pmLouisville Intl

12h 35m

1 stop

LHR9:35 amLondon Heathrow

Sep 15

LHR5:10 pmLondon Heathrow

44h 51m

2 stops

SDF9:01 amLouisville Intl

$868

British Airways

Sep 11

SDF3:59 pmLouisville Intl

15h 51m

1 stop

LHR12:50 pmLondon Heathrow

Sep 13

LHR12:20 pmLondon Heathrow

39h 38m

2 stops

SDF10:58 pmLouisville Intl

$878

Lufthansa flights from Louisville to London Heathrow Airport

Our best Lufthansa deals on Louisville to London Heathrow Airport flight tickets

Lufthansa

Aug 18

SDF7:43 pmLouisville Intl

17h 42m

2 stops

LHR6:25 pmLondon Heathrow

Aug 25

LHR9:30 amLondon Heathrow

14h 49m

2 stops

SDF7:19 pmLouisville Intl

$846

Lufthansa

Aug 17

SDF7:43 pmLouisville Intl

17h 57m

2 stops

LHR6:40 pmLondon Heathrow

Aug 25

LHR9:30 amLondon Heathrow

14h 49m

2 stops

SDF7:19 pmLouisville Intl

$933

Lufthansa

Aug 17

SDF10:05 amLouisville Intl

16h 35m

2 stops

LHR7:40 amLondon Heathrow

Aug 25

LHR8:30 amLondon Heathrow

15h 49m

2 stops

SDF7:19 pmLouisville Intl

$934

momondo Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Tue 9/1

1:00 pm-6:50 pm

3 stops24h 50m

London Heathrow

Thu 9/17

6:40 am-11:59 pm

2 stops22h 19m

$833

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Tue 9/1

11:05 am-12:10 pm

1 stop20h 05m

London Heathrow

Wed 9/16

7:30 pm-10:58 pm

2 stops32h 28m

$841

Quickest round-trip

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Tue 8/18

5:50 pm-12:10 pm

1 stop13h 20m

London Heathrow

Tue 8/25

9:15 am-5:22 pm

1 stop13h 07m

$843

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Wed 8/26

4:00 pm-8:00 am

1 stop11h 00m

London Heathrow

Wed 9/2

6:15 am-10:47 pm

2 stops21h 32m

$844

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Tue 8/18

7:43 pm-6:25 pm

2 stops17h 42m

London Heathrow

Tue 8/25

9:30 am-7:19 pm

2 stops14h 49m

$846

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Sun 8/23

6:11 pm-11:15 am

1 stop12h 04m

London Heathrow

Tue 9/1

12:15 pm-11:01 pm

1 stop15h 46m

$848

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Wed 8/26

12:12 pm-9:30 am

2 stops16h 18m

London Heathrow

Wed 9/2

7:50 am-7:36 pm

2 stops16h 46m

$849

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Tue 9/1

1:00 pm-6:30 pm

2 stops24h 30m

London Heathrow

Thu 9/17

6:40 am-11:59 pm

2 stops22h 19m

$859

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Tue 9/8

4:00 pm-9:35 am

1 stop12h 35m

London Heathrow

Tue 9/15

5:10 pm-9:01 am

2 stops44h 51m

$868

LouisvilleLondon

SDF - LHR

SDFLHR

Louisville Intl

Fri 9/11

3:59 pm-12:50 pm

1 stop15h 51m

London Heathrow

Sun 9/13

12:20 pm-10:58 pm

2 stops39h 38m

$878

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Louisville to London Heathrow Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

What is the typical price of a round-trip flight between Louisville and London Heathrow Airport?

What is the cheapest month to fly to London Heathrow Airport?

The month of February is, on average, the cheapest month to fly to London Heathrow Airport from Louisville, with most prices found around $619. If you’re not able to fly to London Heathrow Airport in February, then January is your next best option. Flight prices from Louisville to London Heathrow Airport during January average around $645.

How far in advance should I book a flight to London Heathrow Airport?

You are more likely to see cheaper flights to London Heathrow Airport from Louisville when booking weeks ahead of your departure date. In general, you can expect to find flights to London Heathrow Airport for around $879 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 Louisville for as low as $688 on momondo.

Can stopping save me money on Louisville to London Heathrow Airport flights?

You could potentially save up to 11% on your flight if you consider stops on a Louisville to London Heathrow Airport flight.

When to book flights from Louisville to London Heathrow Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Louisville to London Heathrow Airport according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Louisville to London Heathrow Airport (SDF to LHR) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Louisville to London Heathrow Airport

Fastest flight time	10h 25m
Direct flights	None

The fastest flight from Louisville to London Heathrow Airport takes 10h 25m

There are no direct flights from Louisville to London Heathrow Airport. There are no popular flight routes from Louisville to London Heathrow Airport.

Search flight deals

How far is Louisville Intl to London Heathrow by plane?
A flight from Louisville Intl to London Heathrow will travel around 4030.3 mi. By plane, this route typically takes 10h 25m.
When did momondo last update prices for flights from Louisville Intl Airport to London Heathrow Airport?
Prices for flights from Louisville Intl Airport to London Heathrow Airport refresh daily.
How many operators does momondo search for flights from Louisville Intl Airport to London Heathrow Airport?
As of March 2026, there are 5 operators available to choose from for flights from Louisville Intl Airport to London Heathrow Airport.
How old do you have to be to fly from Louisville Intl Airport to London Heathrow Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Louisville Intl Airport to London Heathrow Airport.
What documentation or ID do you need to fly to London Heathrow Airport?
The travel and health documents you'll need for your trip to London Heathrow Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at London Heathrow Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular airline from Louisville to London Heathrow Airport?
momondo data reveals that the most frequently booked airline on the route from Louisville to London Heathrow Airport is American Airlines, representing 37% of all bookings. The subsequent popular airlines are British Airways at 24%, Delta at 15%, and United Airlines at 12%.

Best airlines flying from Louisville to London Heathrow Airport

Compare and see reviews for airlines that fly from Louisville to London Heathrow Airport with momondo

Airline	Rating	Free Cancellation	Price
Virgin Atlantic	PriceFrom $577	Free Cancellation	Rating 7.5 685 reviews	Search Virgin Atlantic flights
Delta	PriceFrom $588	Free Cancellation	Rating 7.9 8,359 reviews	Search Delta flights
British Airways	PriceFrom $589	Free Cancellation	Rating 6.7 7,831 reviews	Search British Airways flights
United Airlines	PriceFrom $678	Free Cancellation	Rating 7.4 9,512 reviews	Search United Airlines flights
American Airlines	PriceFrom $692	Free Cancellation	Rating 7.1 11,524 reviews	Search American Airlines flights

Gatwick

Hounslow

Milton Keynes

Luton

Dover

Crawley

Slough

Stratford-upon-Avon

Wembley

Hayes

Croydon

Dartford

Brentwood

Guildford

Harrow

Cobham

Folkestone

Romford

Stansted

Watford

Why use momondo?

Why should I use momondo to find a flight deal from Louisville to London?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Louisville to London for you.

Can I find flights from Louisville to London with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Louisville to London flights to just show those with flexible booking policies.

How can momondo help me find flights from Louisville to London?

Once you have performed a search for Louisville to London flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Louisville to London right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Louisville to London flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

An easier way to manage your London Heathrow Airport trip

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Popular cities in the United Kingdom

Flights to London Gatwick Airportfrom $431

Flights to London City Airportfrom $674

Flights to London Stansted Airportfrom $467

Flights to London Luton Airportfrom $518

Flights to Glasgow Intl Airportfrom $524

Flights to Belfast Intl Airportfrom $669

Flights to London Southend Airportfrom $650

Flights to Belfast City Airportfrom $669

Cheap flights from Louisville to London from $429

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Louisville to London departing on 4/25. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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British Airways flights from Louisville to London Heathrow Airport

Our best British Airways deals on Louisville to London Heathrow Airport flight tickets

Lufthansa flights from Louisville to London Heathrow Airport

Our best Lufthansa deals on Louisville to London Heathrow Airport flight tickets

momondo Fare Finder

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

See travel insights to London from

How to get the cheapest flight ticket from Louisville to London Heathrow Airport

What is the typical price of a round-trip flight between Louisville and London Heathrow Airport?

What is the cheapest month to fly to London Heathrow Airport?

How far in advance should I book a flight to London Heathrow Airport?

Can stopping save me money on Louisville to London Heathrow Airport flights?

What is the cheapest airline that flies from Louisville Intl to London Heathrow?

What airlines fly to London Heathrow Airport?

When to book flights from Louisville to London Heathrow Airport

Cheap Louisville to London Heathrow Airport (SDF to LHR) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Louisville to London Heathrow Airport

Fastest flight time

Direct flights

Best airlines flying from Louisville to London Heathrow Airport

Compare and see reviews for airlines that fly from Louisville to London Heathrow Airport with momondo

Traveling to a place near London?

Why use momondo?

An easier way to manage your London Heathrow Airport trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to London

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Popular flights according to clicks in the last 7 days on momondo

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According to popular flight searches on momondo this year

London Heathrow Airport flight routes

According to popular flight searches on momondo this year

Fly your favorite airline to London

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List of cabin classes available on flights landing in London. Availability may vary depending on flight origin and airline.

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