What airlines fly to London Heathrow Airport?

British Airways, American Airlines and Delta 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 57% 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?

British Airways and United Airlines 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 September 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.

$331 Cheap Flights from Louisville to London Heathrow Airport in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Louisville to London

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

10:13 am - 8:35 amSDF Louisville Intl-LHR London Heathrow

17h 22m1 stop Chicago O'Hare Intl

3:00 pm - 9:37 pmLHR London Heathrow-SDF Louisville Intl

35h 37m2 stops Madrid Barajas Chicago O'Hare Intl

$848Iberia

Wed, Nov 4 - Thu, Nov 12

1:21 pm - 9:05 amSDF Louisville Intl-LHR London Heathrow

14h 44m1 stop Dallas/Fort Worth

11:50 am - 11:27 pmLHR London Heathrow-SDF Louisville Intl

15h 37m1 stop Dallas/Fort Worth

$854Finnair

Wed, Oct 21 - Wed, Oct 28

4:08 pm - 10:00 amSDF Louisville Intl-LHR London Heathrow

12h 52m1 stop Dallas/Fort Worth

11:45 am - 11:31 pmLHR London Heathrow-SDF Louisville Intl

16h 46m1 stop Charlotte Douglas

$879British Airways

Wed, Jan 6 - Wed, Jan 13

1:01 pm - 6:25 amSDF Louisville Intl-LHR London Heathrow

12h 24m1 stop Atlanta Hartsfield-Jackson

11:45 am - 9:17 pmLHR London Heathrow-SDF Louisville Intl

14h 32m2 stops Amsterdam Schiphol Detroit Metropolitan Wayne County

$885Virgin Atlantic

Tue, Nov 24 - Tue, Dec 8

3:00 pm - 6:25 amSDF Louisville Intl-LHR London Heathrow

10h 25m1 stop Atlanta Hartsfield-Jackson

10:00 am - 9:17 pmLHR London Heathrow-SDF Louisville Intl

16h 17m2 stops Amsterdam Schiphol Detroit Metropolitan Wayne County

$886Virgin Atlantic

Mon, Nov 9 - Wed, Dec 9

6:18 pm - 10:25 amSDF Louisville Intl-LHR London Heathrow

11h 07m1 stop Newark

6:50 am - 8:39 pmLHR London Heathrow-SDF Louisville Intl

18h 49m2 stops Brussels Bruxelles-National Newark

$887United Airlines

Mon, Nov 16 - Tue, Nov 24

11:15 am - 8:35 amSDF Louisville Intl-LHR London Heathrow

16h 20m2 stops Newark Ottawa

6:50 am - 5:40 pmLHR London Heathrow-SDF Louisville Intl

15h 50m2 stops Brussels Bruxelles-National Chicago O'Hare Intl

$887United Airlines

Wed, Oct 14 - Wed, Oct 21

1:59 pm - 7:15 amSDF Louisville Intl-LHR London Heathrow

12h 16m1 stop Atlanta Hartsfield-Jackson

6:30 am - 5:18 pmLHR London Heathrow-SDF Louisville Intl

14h 48m2 stops Amsterdam Schiphol Detroit Metropolitan Wayne County

$887Delta

Tue, Oct 20 - Tue, Oct 27

2:36 pm - 7:10 amSDF Louisville Intl-LHR London Heathrow

11h 34m1 stop Detroit Metropolitan Wayne County

8:40 am - 9:33 pmLHR London Heathrow-SDF Louisville Intl

16h 53m2 stops Amsterdam Schiphol Atlanta Hartsfield-Jackson

$887Delta

Tue, Oct 20 - Fri, Oct 30

6:31 pm - 11:35 amSDF Louisville Intl-LHR London Heathrow

12h 04m1 stop Chicago O'Hare Intl

2:45 pm - 12:15 amLHR London Heathrow-SDF Louisville Intl

14h 30m1 stop Dallas/Fort Worth

$894British Airways

Mon, Nov 16 - Tue, Nov 24

Cheap last minute flights

Enter your travel dates to find the best prices.

6:15 am - 9:00 pmSDF Louisville Intl-LHR London Heathrow

33h 45m2 stops Newark Halifax Intl

1:30 pm - 11:56 pmLHR London Heathrow-SDF Louisville Intl

15h 26m2 stops Frankfurt am Main Chicago O'Hare Intl

$1,109Multiple Airlines

Thu, Sep 3 - Thu, Sep 10

11:05 am - 3:00 pmSDF Louisville Intl-LHR London Heathrow

22h 55m2 stops Chicago O'Hare Intl Dublin

12:00 pm - 10:55 pmLHR London Heathrow-SDF Louisville Intl

15h 55m2 stops Dublin Philadelphia

$1,112Aer Lingus

Fri, Sep 4 - Thu, Sep 10

1:14 pm - 9:25 pmSDF Louisville Intl-LHR London Heathrow

27h 11m1 stop Newark

9:00 am - 11:56 pmLHR London Heathrow-SDF Louisville Intl

19h 56m2 stops Munich Franz Josef Strauss Chicago O'Hare Intl

$1,115United Airlines

Thu, Sep 3 - Thu, Sep 10

5:45 pm - 6:45 amSDF Louisville Intl-LHR London Heathrow

32h 00m1 stop Chicago O'Hare Intl

2:05 pm - 1:11 pmLHR London Heathrow-SDF Louisville Intl

28h 06m2 stops Montreal Pierre Elliott Trudeau Intl Chicago O'Hare Intl

$1,123United Airlines

Sat, Sep 5 - Sat, Sep 19

5:45 pm - 6:45 amSDF Louisville Intl-LHR London Heathrow

32h 00m1 stop Chicago O'Hare Intl

2:05 pm - 1:11 pmLHR London Heathrow-SDF Louisville Intl

28h 06m2 stops Montreal Pierre Elliott Trudeau Intl Chicago O'Hare Intl

$1,124United Airlines

Sat, Sep 5 - Sat, Sep 19

7:18 pm - 9:05 amSDF Louisville Intl-LHR London Heathrow

32h 47m1 stop Chicago O'Hare Intl

9:45 am - 5:29 pmLHR London Heathrow-SDF Louisville Intl

12h 44m1 stop Chicago O'Hare Intl

$1,127British Airways

Sat, Sep 5 - Sat, Sep 19

1:15 pm - 6:30 amSDF Louisville Intl-LHR London Heathrow

36h 15m2 stops Newark Montreal Pierre Elliott Trudeau Intl

2:05 pm - 8:08 pmLHR London Heathrow-SDF Louisville Intl

35h 03m2 stops Montreal Pierre Elliott Trudeau Intl Newark

$1,127Air Canada

Sat, Sep 5 - Sat, Sep 19

12:35 pm - 7:40 amSDF Louisville Intl-LHR London Heathrow

14h 05m2 stops Minneapolis St Paul Amsterdam Schiphol

9:20 am - 11:59 pmLHR London Heathrow-SDF Louisville Intl

19h 39m1 stop Atlanta Hartsfield-Jackson

$1,147Delta

Fri, Sep 4 - Thu, Sep 10

4:55 pm - 6:55 amSDF Louisville Intl-LHR London Heathrow

33h 00m1 stop Charlotte Douglas

9:15 am - 7:10 pmLHR London Heathrow-SDF Louisville Intl

14h 55m1 stop Charlotte Douglas

$1,151British Airways

Sat, Sep 5 - Sat, Sep 19

3:25 pm - 1:05 pmSDF Louisville Intl-LHR London Heathrow

16h 40m2 stops Atlanta Hartsfield-Jackson Minneapolis St Paul

6:30 am - 7:30 pmLHR London Heathrow-SDF Louisville Intl

18h 00m2 stops Amsterdam Schiphol Atlanta Hartsfield-Jackson

$1,162Delta

Sat, Sep 5 - Sat, Sep 19

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KLM flights from Louisville to London Heathrow Airport

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

KLM

Nov 8

SDF10:39 amLouisville Intl

16h 06m

1 stop

LHR7:45 amLondon Heathrow

Nov 16

LHR8:25 pmLondon Heathrow

25h 29m

2 stops

SDF4:54 pmLouisville Intl

$875

KLM

Nov 8

SDF7:55 pmLouisville Intl

15h 10m

2 stops

LHR4:05 pmLondon Heathrow

Nov 16

LHR8:25 pmLondon Heathrow

25h 29m

2 stops

SDF4:54 pmLouisville Intl

$884

Lufthansa flights from Louisville to London Heathrow Airport

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

Lufthansa

Nov 16

SDF5:57 pmLouisville Intl

18h 08m

2 stops

LHR5:05 pmLondon Heathrow

Nov 24

LHR8:45 amLondon Heathrow

18h 45m

2 stops

SDF10:30 pmLouisville Intl

$881

Lufthansa

Nov 16

SDF5:57 pmLouisville Intl

18h 08m

2 stops

LHR5:05 pmLondon Heathrow

Nov 24

LHR8:45 amLondon Heathrow

18h 45m

2 stops

SDF10:30 pmLouisville Intl

$882

Lufthansa

Nov 11

SDF2:11 pmLouisville Intl

15h 34m

2 stops

LHR10:45 amLondon Heathrow

Nov 23

LHR7:30 pmLondon Heathrow

28h 02m

2 stops

SDF6:32 pmLouisville Intl

$911

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 Louisville Intl - LHR London Heathrow

SDFLHR

Louisville Intl

Wed 11/4

10:13 am-8:35 am

1 stop17h 22m

London Heathrow

Thu 11/12

3:00 pm-9:37 pm

2 stops35h 37m

$848

LouisvilleLondon

SDF Louisville Intl - LHR London Heathrow

SDFLHR

Louisville Intl

Wed 10/21

1:21 pm-9:05 am

1 stop14h 44m

London Heathrow

Wed 10/28

11:50 am-11:27 pm

1 stop15h 37m

$854

LouisvilleLondon

SDF Louisville Intl - LHR London Heathrow

SDFLHR

Louisville Intl

Wed 1/6

4:08 pm-10:00 am

1 stop12h 52m

London Heathrow

Wed 1/13

11:45 am-11:31 pm

1 stop16h 46m

$879

LouisvilleLondon

SDF Louisville Intl - LHR London Heathrow

SDFLHR

Louisville Intl

Tue 11/24

1:01 pm-6:25 am

1 stop12h 24m

London Heathrow

Tue 12/8

11:45 am-9:17 pm

2 stops14h 32m

$885

LouisvilleLondon

SDF Louisville Intl - LHR London Heathrow

SDFLHR

Louisville Intl

Mon 11/9

3:00 pm-6:25 am

1 stop10h 25m

London Heathrow

Wed 12/9

10:00 am-9:17 pm

2 stops16h 17m

$886

LouisvilleLondon

SDF Louisville Intl - LHR London Heathrow

SDFLHR

Louisville Intl

Mon 11/16

6:18 pm-10:25 am

1 stop11h 07m

London Heathrow

Tue 11/24

6:50 am-8:39 pm

2 stops18h 49m

$887

LouisvilleLondon

SDF Louisville Intl - LHR London Heathrow

SDFLHR

Louisville Intl

Wed 10/14

11:15 am-8:35 am

2 stops16h 20m

London Heathrow

Wed 10/21

6:50 am-5:40 pm

2 stops15h 50m

$887

LouisvilleLondon

SDF Louisville Intl - LHR London Heathrow

SDFLHR

Louisville Intl

Tue 10/20

1:59 pm-7:15 am

1 stop12h 16m

London Heathrow

Tue 10/27

6:30 am-5:18 pm

2 stops14h 48m

$887

LouisvilleLondon

SDF Louisville Intl - LHR London Heathrow

SDFLHR

Louisville Intl

Tue 10/20

2:36 pm-7:10 am

1 stop11h 34m

London Heathrow

Fri 10/30

8:40 am-9:33 pm

2 stops16h 53m

$887

Quickest round-trip

LouisvilleLondon

SDF Louisville Intl - LHR London Heathrow

SDFLHR

Louisville Intl

Mon 11/16

6:31 pm-11:35 am

1 stop12h 04m

London Heathrow

Tue 11/24

2:45 pm-12:15 am

1 stop14h 30m

$894

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?

Prices are currently typical for flights on this route.

Typical prices usually range from $824 to $1,211.
The lowest price recently found on this route was $848.

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 $630. If you’re not able to fly to London Heathrow Airport in February, then November is your next best option. Flight prices from Louisville to London Heathrow Airport during November average around $799.

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

You could potentially save up to 25% 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

Best Price Found	$331
Fastest flight time	10h 00m
Direct flights	None

The best one-way flight to London Heathrow Airport from Louisville in the past 72 hours is $331. The best round-trip flight deal from Louisville to London Heathrow Airport found on momondo in the last 72 hours is $848.

The fastest flight from Louisville to London Heathrow Airport takes 10h 00m

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

Frequently asked questions about flying from Louisville to London Heathrow Airport

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 00m.
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 September 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 British Airways, representing 36% of all bookings. The subsequent popular airlines are American Airlines at 23%, United Airlines at 18%, and Delta at 14%.

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
Delta	PriceFrom $588	Free Cancellation	Rating 7.8 8,547 reviews	Search Delta flights
Virgin Atlantic	PriceFrom $598	Free Cancellation	Rating 7.4 695 reviews	Search Virgin Atlantic flights
British Airways	PriceFrom $606	Free Cancellation	Rating 6.7 8,196 reviews	Search British Airways flights
American Airlines	PriceFrom $676	Free Cancellation	Rating 7.1 12,026 reviews	Search American Airlines flights
United Airlines	PriceFrom $705	Free Cancellation	Rating 7.4 10,158 reviews	Search United Airlines flights

Hounslow

Gatwick

Milton Keynes

Stratford-upon-Avon

Hayes

Wembley

Luton

Croydon

Dover

Richmond

Stansted

Kingston upon Thames

Harrow

Cobham

Watford

Slough

Eastbourne

Worthing

Hook

Uxbridge

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 $401

Flights to London Stansted Airportfrom $499

Flights to London City Airportfrom $675

Flights to London Luton Airportfrom $485

Flights to Glasgow Intl Airportfrom $585

Flights to Belfast Intl Airportfrom $597

Flights to London Southend Airportfrom $649

Flights to Belfast City Airportfrom $683

Cheap flights from Louisville to London from $331

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 11/29. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Find the cheapest flights from Louisville to London

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KLM flights from Louisville to London Heathrow Airport

Our best KLM 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?

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

Best Price Found

Fastest flight time

Direct flights

Frequently asked questions about flying from Louisville to London Heathrow Airport

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

Popular cities in the United Kingdom

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

Louisville flight routes

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

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to London

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

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