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Cheap flights from Louisville to London Heathrow Airport from £421

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 18/8. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
SDF — LHR
23 May — 30 May1
1 adult
Thu 23/5
Thu 30/5

The best prices from Louisville Intl to London Heathrow are usually found in February or November, booked 5 days in advance, depart on a Wednesday or Monday and return on a Tuesday

Cheap flight deals from Louisville to Heathrow

Discover tips and strategies to find the most affordable flight options for your journey from Louisville (SDF) to Heathrow (LHR). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated 18 May 2024.

Popular in

June

Cheapest in

February

Average price

£779

Round-trip from

£68
High demand for flights, 36% potential price rise
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Best time to find cheap flights, 30% potential price drop
Search Deals
Average for round-trip flights in May 2024
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From Louisville Intl to London Heathrow
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What is the cheapest day to fly round-trip from Louisville to London Heathrow Airport?

Flying to your destination on a Tuesday can be more expensive, but this shouldn’t discourage you from finding affordable options to get to London Heathrow Airport. Check prices with Cheapflights to find a great deal for your trip.

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

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 9 days in advance, which can save you up to 27% on flights from Louisville to London Heathrow Airport compared to booking the week you need them. Waiting 9 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at £463. For sooner than that we have options available in the next 3 days from £902.

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

Flights from Louisville to London Heathrow Airport lean towards being more expensive in June. Prices are generally better when you fly from Louisville to London Heathrow Airport in February, with the cheapest ticket starting at £514.

When is the cheapest time to fly from Louisville to London Heathrow Airport (SDF - LHR)?

It’s typically best to fly out from Louisville to London Heathrow Airport in the morning. Doing so could potentially save you 3% on the flight price compared to flying in the afternoon, which is usually more expensive.

Cheap British Airways flights from Louisville to Heathrow

Explore cheap flight options specifically provided by British Airways for the route between Louisville and Heathrow. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 835,321 searches. Data last updated 18 May 2024.
Check out some of the cheapest British Airways flights we've come across from Louisville to London. Deals update often to give you more flight options matching your criteria
Mon 19/808:20SDF - LHR
1 stop17h 15mBritish Airways
Tue 27/806:55LHR - SDF
2 stops20h 10mBritish Airways
Deal found 17/5£533
Tue 10/907:10SDF - LHR
1 stop10h 00mBritish Airways
Mon 16/920:10LHR - SDF
2 stops27h 29mBritish Airways
Deal found 18/5£598
Mon 9/907:10SDF - LHR
1 stop10h 00mBritish Airways
Mon 16/914:25LHR - SDF
1 stop11h 43mBritish Airways
Deal found 18/5£607
Wed 11/919:10SDF - LHR
1 stop10h 10mBritish Airways
Tue 17/920:10LHR - SDF
2 stops27h 29mBritish Airways
Deal found 18/5£617
Sat 14/919:10SDF - LHR
1 stop12h 05mBritish Airways
Sat 21/911:05LHR - SDF
1 stop12h 34mBritish Airways
Deal found 18/5£646
Sat 28/915:39SDF - LHR
1 stop11h 11mBritish Airways
Sat 5/1008:10LHR - SDF
1 stop12h 20mBritish Airways
Deal found 18/5£662
Thu 30/506:46SDF - LHR
1 stop10h 24mBritish Airways
Thu 6/608:10LHR - SDF
1 stop12h 33mBritish Airways
Deal found 18/5£876
Sat 17/806:29SDF - LHR
1 stop10h 41mBritish Airways
Sun 25/820:45LHR - SDF
2 stops29h 12mBritish Airways
Deal found 18/5£3,167

Cheap United Airlines flights from Louisville to Heathrow

Explore cheap flight options specifically provided by United Airlines for the route between Louisville and Heathrow. Find affordable fares and compare prices with other airlines to secure the best deal for your journey. Over the last 7 days, Cheapflights users made 835,321 searches. Data last updated 18 May 2024.
Some of the best deals we've found on United Airlines flights travelling from Louisville to London. Check back soon if you're not seeing flights that suit your needs.
Tue 20/810:30SDF - LHR
1 stop14h 25mUnited Airlines
Tue 10/906:50LHR - SDF
2 stops15h 10mUnited Airlines
Deal found 18/5£583
Tue 20/814:02SDF - LHR
2 stops15h 08mUnited Airlines
Tue 10/906:50LHR - SDF
2 stops15h 10mUnited Airlines
Deal found 18/5£586
Wed 12/613:18SDF - LHR
1 stop12h 02mUnited Airlines
Wed 19/608:30LHR - SDF
1 stop19h 14mUnited Airlines
Deal found 18/5£655
Sat 8/613:18SDF - LHR
2 stops16h 22mUnited Airlines
Sat 15/606:50LHR - SDF
2 stops21h 08mUnited Airlines
Deal found 18/5£834
Fri 31/513:18SDF - LHR
1 stop12h 02mUnited Airlines
Sat 8/608:40LHR - SDF
2 stops19h 04mUnited Airlines
Deal found 17/5£895
Fri 7/613:18SDF - LHR
1 stop12h 52mUnited Airlines
Fri 14/606:50LHR - SDF
2 stops18h 12mUnited Airlines
Deal found 18/5£922
Tue 30/710:50SDF - LHR
1 stop14h 05mUnited Airlines
Sun 4/806:50LHR - SDF
2 stops18h 22mUnited Airlines
Deal found 18/5£949
Thu 23/509:43SDF - LHR
1 stop20h 52mUnited Airlines
Sat 1/606:50LHR - SDF
2 stops18h 29mUnited Airlines
Deal found 18/5£1,023

Cheap Louisville to Heathrow flights in May & June 2024

Find cheap flight options from Louisville to Heathrow specifically for the months of May and June 2024. Explore affordable fares based on user searches. Over the last 7 days, Cheapflights users made 835,321 searches. Prices were last updated on 18 May 2024.
These are some of the best deals we've found on flights to London in 2024 at this time. Check back soon for alternative fares.
Wed 12/613:18SDF - LHR
1 stop12h 02mUnited Airlines
Wed 19/608:30LHR - SDF
1 stop19h 14mUnited Airlines
Deal found 18/5£655
Wed 22/512:49SDF - LHR
1 stop13h 26mUnited Airlines
Mon 27/509:30LHR - SDF
2 stops32h 07mUnited Airlines
Deal found 17/5£676
Wed 22/505:55SDF - LHR
2 stops19h 50mUnited Airlines
Mon 27/509:30LHR - SDF
2 stops32h 07mUnited Airlines
Deal found 17/5£680
Wed 22/514:26SDF - LHR
1 stop11h 19mKLM
Mon 27/513:55LHR - SDF
1 stop15h 04mKLM
Deal found 17/5£690
Sun 23/607:00SDF - LHR
1 stop19h 15mDelta
Tue 9/710:50LHR - SDF
2 stops16h 59mDelta
Deal found 17/5£709
Sun 23/618:30SDF - LHR
2 stops14h 15mDelta
Tue 9/710:50LHR - SDF
2 stops16h 59mDelta
Deal found 17/5£722
Sat 8/613:20SDF - LHR
1 stop15h 40mDelta
Sat 15/609:55LHR - SDF
2 stops17h 54mDelta
Deal found 18/5£733
Sat 8/613:20SDF - LHR
1 stop15h 40mDelta
Sat 15/612:10LHR - SDF
1 stop15h 39mDelta
Deal found 18/5£744
Thu 13/612:23SDF - LHR
2 stops14h 17mDelta
Mon 17/611:30LHR - SDF
2 stops16h 19mDelta
Deal found 18/5£747

Louisville to Heathrow 2024 flight deals

Discover exclusive flight deals for travel between Louisville and Heathrow in 2024. Find excellent offers based on user searches. Over the last 7 days, Cheapflights users made 835,321 searches. Data last updated 18 May 2024.
These are some of the best deals we've found on flights to London in 2024 at this time. Check back soon for alternative fares.
Mon 19/808:20SDF - LHR
1 stop17h 15mBritish Airways
Tue 27/806:55LHR - SDF
2 stops20h 10mBritish Airways
Deal found 17/5£533
Tue 20/810:30SDF - LHR
1 stop14h 25mUnited Airlines
Tue 10/906:50LHR - SDF
2 stops15h 10mUnited Airlines
Deal found 18/5£583
Wed 4/912:20SDF - LHR
1 stop16h 40mDelta
Wed 11/906:15LHR - SDF
2 stops17h 27mDelta
Deal found 18/5£583
Mon 19/819:30SDF - LHR
1 stop12h 45mDelta
Tue 27/811:30LHR - SDF
2 stops16h 23mDelta
Deal found 18/5£584
Tue 20/814:02SDF - LHR
2 stops15h 08mUnited Airlines
Tue 10/906:50LHR - SDF
2 stops15h 10mUnited Airlines
Deal found 18/5£586
Tue 20/815:07SDF - LHR
1 stop11h 23mAmerican Airlines
Tue 10/915:15LHR - SDF
1 stop13h 32mAmerican Airlines
Deal found 18/5£587
Mon 19/812:40SDF - LHR
2 stops13h 05mDelta
Tue 27/811:30LHR - SDF
2 stops16h 23mDelta
Deal found 18/5£588
Mon 5/814:15SDF - LHR
1 stop11h 30mDelta
Thu 22/806:15LHR - SDF
2 stops16h 41mDelta
Deal found 17/5£590
Mon 5/817:36SDF - LHR
1 stop10h 29mAmerican Airlines
Thu 22/812:15LHR - SDF
1 stop12h 08mAmerican Airlines
Deal found 17/5£593

Louisville to Heathrow flights leaving soon

Find last-minute flight options from Louisville to Heathrow for spontaneous travel. Discover available flights and compare prices based on user searches. Secure great deals and offers for spontaneous trips with quick booking options. Over the last 7 days, Cheapflights users made 835,321 searches. Data last updated 18 May 2024.
Have a look at some of the flights available from Louisville to London departing last-minute. To prevent any unwanted surprises, users should verify their flight info before booking.
Thu 23/509:43SDF - LHR
1 stop20h 52mUnited Airlines
Sat 1/606:50LHR - SDF
2 stops18h 29mUnited Airlines
Deal found 18/5£1,023
Thu 23/518:15SDF - LHR
2 stops13h 00mDelta
Sat 1/611:30LHR - SDF
2 stops17h 29mDelta
Deal found 18/5£1,028
Thu 23/509:00SDF - LHR
3 stops16h 30mMultiple Airlines
Sat 1/609:30LHR - SDF
2 stops15h 49mMultiple Airlines
Deal found 18/5£1,252

One-way flights to Heathrow from Louisville

Search for one-way flight options from Louisville to Heathrow. Find affordable one-way fares based on user searches. Compare prices and availability to plan your one-way journey according to your preferred dates and budget. Over the last 7 days, Cheapflights users made 835,321 searches. Data last updated 18 May 2024.
Take a look at some of the one-way flights we've detected from Louisville to London. Those needing a return flight from Louisville to London can use the search form above.
Sun 18/813:11SDF - LHR
1 stop13h 39mIberia
Deal found 18/5£421
Sun 18/811:46SDF - LHR
2 stops14h 59mAmerican Airlines
Deal found 18/5£431
Sat 8/607:45SDF - LHR
3 stops56h 50mMultiple Airlines
Deal found 18/5£436
Sun 18/808:45SDF - LHR
3 stops16h 45mAir Canada
Deal found 18/5£464
Thu 18/709:44SDF - LHR
1 stop16h 56mUnited Airlines
Deal found 18/5£499
Sat 8/621:43SDF - LHR
2 stops31h 17mMultiple Airlines
Deal found 18/5£501
Tue 3/914:02SDF - LHR
3 stops16h 08mAir Canada
Deal found 18/5£545
Thu 18/713:10SDF - LHR
3 stops17h 00mAir Canada
Deal found 18/5£584
Sat 8/617:31SDF - LHR
1 stop33h 09mAmerican Airlines
Deal found 18/5£712

Find flights from Louisville to Heathrow within your budget

Customise your flight search to find flights from Louisville 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 835,321 searches. Data last updated 18 May 2024.

Fly from

Any airport

Fly to

Any airport

Budget

£533 - £1,034

Route

Depart

Return

Price

Louisville IntlLondon Heathrow

SDF - LHR

SDFLHR

Louisville Intl

Mon 19/8

1 stop17h 15m

London Heathrow

Tue 27/8

2 stops20h 10m

£533

Louisville IntlLondon Heathrow

SDF - LHR

SDFLHR

Louisville Intl

Tue 20/8

1 stop14h 25m

London Heathrow

Tue 10/9

2 stops15h 10m

£583

Louisville IntlLondon Heathrow

SDF - LHR

SDFLHR

Louisville Intl

Wed 4/9

1 stop16h 40m

London Heathrow

Wed 11/9

2 stops17h 27m

£583

Louisville IntlLondon Heathrow

SDF - LHR

SDFLHR

Louisville Intl

Tue 20/8

1 stop11h 23m

London Heathrow

Tue 10/9

1 stop13h 32m

£587

Louisville IntlLondon Heathrow

SDF - LHR

SDFLHR

Louisville Intl

Tue 20/8

3 stops16h 45m

London Heathrow

Tue 10/9

2 stops16h 01m

£594

Louisville IntlLondon Heathrow

SDF - LHR

SDFLHR

Louisville Intl

Fri 20/9

2 stops19h 30m

London Heathrow

Fri 27/9

2 stops28h 07m

£622

Louisville IntlLondon Heathrow

SDF - LHR

SDFLHR

Louisville Intl

Tue 10/9

2 stops14h 38m

London Heathrow

Mon 16/9

2 stops30h 01m

£657

Louisville IntlLondon Heathrow

SDF - LHR

SDFLHR

Louisville Intl

Wed 11/9

2 stops16h 55m

London Heathrow

Tue 17/9

2 stops24h 54m

£679

Louisville IntlLondon Heathrow

SDF - LHR

SDFLHR

Louisville Intl

Sat 28/9

1 stop17h 06m

London Heathrow

Sat 5/10

2 stops19h 53m

£1,034

Flights are sorted by cheapest first

Deals found on 17/5

When is the best time to book a flight from Louisville to London Heathrow Airport?

Use this chart to determine the optimal time to book a return flight from Louisville to Heathrow. Price data was last updated on 10 May 2024.
The best time to book flights from Louisville to London Heathrow Airport is 3 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
Search Deals

Average price of flights to Heathrow by month

Plan your trip from Louisville to Heathrow by taking into account the cheapest months to travel. The average price of a one-way flight from Louisville to Heathrow is currently £510 while a return flight costs £652. Price data was last updated on 12 May 2024.

Currently, January is the cheapest month in which you can book a flight from Louisville to London Heathrow Airport (average of £110). Flying from Louisville to London Heathrow Airport in July is currently the most expensive (average of £165). 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.

January

£87

February

£98

March

£94

April

£103

May

£108

June

£129

July

£130

August

£113

September

£109

October

£124

November

£91

December

£95

Temperature and rainfall in Heathrow by month

Plan your trip to Heathrow by taking into account the average temperature and rainfall totals by month.

LON

Temperature

4 - 17 °C

Reviews of airlines servicing Heathrow

Get insights into the airlines that provide service to Heathrow. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Heathrow. Reviews last updated 18 May 2024.
Get a feel of what it's like to fly with British Airways, United Airlines and Delta from Louisville to London by reading reviews from past customers. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very Good
10,647 reviews
Check prices

Boarding

8.2

Comfort

7.9

Food

7.4

Crew

8.6

Entertainment

8.0

Overall

8.0

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

Delta
8.0
Very Good
10,647 reviews
Delta
8.0
Very Good
10,647 reviews
Check prices

Boarding

8.2

Comfort

7.9

Food

7.4

Crew

8.6

Entertainment

8.0

Overall

8.0

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

Air France
7.6
Good
1,761 reviews
Delta
8.0
Very Good
10,647 reviews
Check prices

Boarding

8.2

Comfort

7.9

Food

7.4

Crew

8.6

Entertainment

8.0

Overall

8.0

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

United Airlines
7.4
Good
10,900 reviews
Delta
8.0
Very Good
10,647 reviews
Check prices

Boarding

8.2

Comfort

7.9

Food

7.4

Crew

8.6

Entertainment

8.0

Overall

8.0

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

American Airlines
7.3
Good
14,489 reviews
Delta
8.0
Very Good
10,647 reviews
Check prices

Boarding

8.2

Comfort

7.9

Food

7.4

Crew

8.6

Entertainment

8.0

Overall

8.0

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

Iberia
7.1
Good
2,742 reviews
Delta
8.0
Very Good
10,647 reviews
Check prices

Boarding

8.2

Comfort

7.9

Food

7.4

Crew

8.6

Entertainment

8.0

Overall

8.0

Reviews

1 / 10

Bad experience with the staff boarding the gate. I couldn’t board with my carry on, personal item and a funny bag. I had to put my passport inside my pockets and put the funny bag inside the personal item. Then after passing the staff pull out everything again.

Related info for your journey

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

  • What airport do you fly from for flights from Louisville to London Heathrow?

    Louisville Intl (SDF), located 5.3 mi from the city center, is the airport you fly out of when you book flights from Louisville to London Heathrow. 0 airlines have flights from Louisville Intl to London Heathrow on a regular basis. Booking flights from Louisville Intl to London Heathrow should not be difficult; the airport handles an average of 0 outbound flights to London Heathrow per day.

  • Can I find flights from Louisville to London Heathrow Airport for under £600 on Cheapflights?

    Yes, there are multiple flights from Louisville to London Heathrow Airport for under £600. The cheapest flight booked recently is on British Airways for just £533, but on average you can expect to pay £596.

  • Are there last-minute flights available from Louisville to London Heathrow Airport for under £1,100?

    There are currently 3+ open flights from Louisville to London Heathrow Airport within the next 7 days for less than £1,100.

  • What are the cheapest airlines flying from Louisville to London Heathrow Airport round-trip?

    Cheapflights users have booked flights from Louisville to London Heathrow Airport round-trip from £533. Other airlines that can offer you cheap pricing are United Airlines, from £583, and Delta, from £583. You may be able to fly from Louisville to London Heathrow Airport for 27% less than the average price by searching for these airlines.

  • What are the cheapest airlines to fly from Louisville to London Heathrow Airport one-way?

    To fly one-way, consider booking your trip with Iberia, which is currently one of the cheapest options available, starting at £421. American Airlines flights start at £431 while deals on Air Canada start at £464 one-way.

  • What does SDF to LHR mean?

    This is defined as Louisville Intl Airport (SDF) and London Heathrow Airport (LHR). Codes like London Heathrow Airport are often used to just call airports uniquely.

  • Can I find deals for flights from Louisville to Heathrow that include extra baggage allowance?

    The amount of baggage you can bring on your Louisville to Heathrow flight depends on the airline and the type of fare you've chosen. After entering your flight details, you'll be able to view the specific baggage policies for each deal in the search results. Keep in mind that certain deals may offer additional baggage allowance.

  • Can I find deals on flights from Louisville to Heathrow with specific airlines?

    Yes, Cheapflights allows you to browse and filter Louisville to Heathrow flight deals by airline. After entering your origin and destination, use the available filters to view flights offered by airlines.

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

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

  • How can I find direct flights from Louisville to Heathrow?

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

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

    Yes. Cheapflights offers flight deals from Louisville 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.

  • Can I find deals for flights from Louisville to Heathrow that allow pets onboard?

    Many airlines flying from Louisville to Heathrow offer the option to travel with pets. After selecting a flight deal, you can find more information about the airline's pet policy on their official website or by contacting the airline directly. Please note that additional fees and restrictions may apply.

  • Can I find deals on last-minute flights from Louisville to Heathrow?

    Yes, you can often find last-minute deals on Louisville to Heathrow flights on Cheapflights. However, these deals can vary and may not always be available. We recommend checking back frequently or signing up for price alerts for the most up-to-date deals.

  • How recently were the Louisville to London Heathrow Airport flight deals updated?

    The Louisville to London Heathrow Airport flight deals you see on this page were last updated on 18/5.

See more FAQs

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Find flights from Louisville to Heathrow, based on your preferred cabin class, be it economy, premium economy, business, or first class.
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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 Louisville to Heathrow?

Cheapflights goes through 900+ travel sites to look for the best flight deals for flights from Louisville to Heathrow. Too many options? Cheapflights also provides filters for things like airlines, price ranges, and number of stops to help you make a decision easily.

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

By finding flights from multiple airlines and providers at completely no cost, Cheapflights helps millions of users like you annually find the best flights to Heathrow from Louisville.

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

Cheapflights does show flights with no change fees to all users. To see these options for flights from Louisville to Heathrow, users can toggle the no change fees filter when performing a flight search.

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

Not ready to book yet? You can track prices for flights from Louisville to Heathrow on Cheapflights with our Price Alert feature and get notified when better prices are available.

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