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Cheap flights from Luxembourg to London from £21

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Luxembourg to London departing on 25/10. 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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Cheap return flights

British Airways Logo
10:15 - 10:55LUX-LHR
1h 40mdirect
British Airways Logo
12:35 - 15:00LHR-LUX
1h 25mdirect
£67British Airways
Find Deal
Tue, 9 Dec - Wed, 10 Dec
British Airways Logo
21:55 - 22:25LUX-LHR
1h 30mdirect
British Airways Logo
12:35 - 15:00LHR-LUX
1h 25mdirect
£71British Airways
Find Deal
Tue, 28 Oct - Wed, 29 Oct
British Airways Logo
15:55 - 16:25LUX-LHR
1h 30mdirect
British Airways Logo
07:10 - 09:30LHR-LUX
1h 20mdirect
£72British Airways
Find Deal
Wed, 19 Nov - Tue, 25 Nov
British Airways Logo
15:55 - 16:25LUX-LHR
1h 30mdirect
British Airways Logo
14:25 - 16:50LHR-LUX
1h 25mdirect
£72British Airways
Find Deal
Wed, 29 Oct - Thu, 6 Nov
British Airways Logo
21:10 - 21:35LUX-LHR
1h 25mdirect
British Airways Logo
12:50 - 15:15LHR-LUX
1h 25mdirect
£73British Airways
Find Deal
Sat, 25 Oct - Sat, 1 Nov
British Airways Logo
10:15 - 10:55LUX-LHR
1h 40mdirect
British Airways Logo
18:45 - 21:10LHR-LUX
1h 25mdirect
£74British Airways
Find Deal
Tue, 4 Nov - Thu, 6 Nov
British Airways Logo
21:55 - 22:25LUX-LHR
1h 30mdirect
British Airways Logo
07:55 - 10:15LHR-LUX
1h 20mdirect
£75British Airways
Find Deal
Tue, 28 Oct - Fri, 31 Oct
British Airways Logo
17:10 - 17:40LUX-LHR
1h 30mdirect
British Airways Logo
07:55 - 10:15LHR-LUX
1h 20mdirect
£75British Airways
Find Deal
Mon, 27 Oct - Thu, 30 Oct
British Airways Logo
21:10 - 21:35LUX-LHR
1h 25mdirect
British Airways Logo
14:25 - 16:50LHR-LUX
1h 25mdirect
£76British Airways
Find Deal
Sat, 25 Oct - Thu, 30 Oct
British Airways Logo
18:15 - 18:45LUX-LHR
1h 30mdirect
British Airways Logo
07:55 - 10:15LHR-LUX
1h 20mdirect
£77British Airways
Find Deal
Sun, 21 Dec - Wed, 24 Dec

British Airways flights from Luxembourg to London Heathrow Airport

Our best British Airways deals on Luxembourg to London Heathrow Airport flight tickets
British Airways
9 Dec
LUX10:15Luxembourg
1h 40m
LHR10:55London Heathrow
10 Dec
LHR12:35London Heathrow
1h 25m
LUX15:00Luxembourg
£67
Find similar
British Airways
28 Oct
LUX21:55Luxembourg
1h 30m
LHR22:25London Heathrow
29 Oct
LHR12:35London Heathrow
1h 25m
LUX15:00Luxembourg
£71
Find similar
British Airways
19 Nov
LUX15:55Luxembourg
1h 30m
LHR16:25London Heathrow
25 Nov
LHR07:10London Heathrow
1h 20m
LUX09:30Luxembourg
£72
Find similar

KLM flights from Luxembourg to London Heathrow Airport

Our best KLM deals on Luxembourg to London Heathrow Airport flight tickets
KLM
24 Sept
LUX10:30Luxembourg
4h 20m
1 stop
LHR13:50London Heathrow
27 Sept
LHR18:35London Heathrow
14h 25m
1 stop
LUX10:00Luxembourg
£185
Find similar
KLM
25 Sept
LUX14:15Luxembourg
7h 40m
1 stop
LHR20:55London Heathrow
28 Sept
LHR20:55London Heathrow
12h 05m
1 stop
LUX10:00Luxembourg
£201
Find similar
KLM
25 Sept
LUX14:15Luxembourg
4h 20m
1 stop
LHR17:35London Heathrow
28 Sept
LHR20:55London Heathrow
12h 05m
1 stop
LUX10:00Luxembourg
£213
Find similar

momondo Fare Finder

 
Customise your flight search to find flights from Luxembourg to London Heathrow Airport 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, momondo users made 279,928 searches. Data last updated 12 September 2025.
Use the filters below to find and compare flights from Luxembourg to London Heathrow Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

LuxembourgLondon

LUX - LHR

LUXLHR

Luxembourg

Tue 9/12

10:15-10:55

Nonstop1h 40m

London Heathrow

Wed 10/12

12:35-15:00

Nonstop1h 25m

£67

LuxembourgLondon

LUX - LHR

LUXLHR

Luxembourg

Tue 28/10

21:55-22:25

Nonstop1h 30m

London Heathrow

Wed 29/10

12:35-15:00

Nonstop1h 25m

£71

LuxembourgLondon

LUX - LHR

LUXLHR

Luxembourg

Wed 19/11

15:55-16:25

Nonstop1h 30m

London Heathrow

Tue 25/11

07:10-09:30

Nonstop1h 20m

£72

LuxembourgLondon

LUX - LHR

LUXLHR

Luxembourg

Wed 29/10

15:55-16:25

Nonstop1h 30m

London Heathrow

Thu 6/11

14:25-16:50

Nonstop1h 25m

£72

LuxembourgLondon

LUX - LHR

LUXLHR

Luxembourg

Sat 25/10

21:10-21:35

Nonstop1h 25m

London Heathrow

Sat 1/11

12:50-15:15

Nonstop1h 25m

£73

LuxembourgLondon

LUX - LHR

LUXLHR

Luxembourg

Tue 4/11

10:15-10:55

Nonstop1h 40m

London Heathrow

Thu 6/11

18:45-21:10

Nonstop1h 25m

£74

LuxembourgLondon

LUX - LHR

LUXLHR

Luxembourg

Tue 28/10

21:55-22:25

Nonstop1h 30m

London Heathrow

Fri 31/10

07:55-10:15

Nonstop1h 20m

£75

LuxembourgLondon

LUX - LHR

LUXLHR

Luxembourg

Mon 27/10

17:10-17:40

Nonstop1h 30m

London Heathrow

Thu 30/10

07:55-10:15

Nonstop1h 20m

£75

LuxembourgLondon

LUX - LHR

LUXLHR

Luxembourg

Sat 25/10

21:10-21:35

Nonstop1h 25m

London Heathrow

Thu 30/10

14:25-16:50

Nonstop1h 25m

£76

LuxembourgLondon

LUX - LHR

LUXLHR

Luxembourg

Sun 21/12

18:15-18:45

Nonstop1h 30m

London Heathrow

Wed 24/12

07:55-10:15

Nonstop1h 20m

£77

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to London from

How to get the cheapest flight ticket from Luxembourg 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

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

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

In general, September is the cheapest month to fly from Luxembourg to London Heathrow Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around £78. The month of January is another great option to travel to London Heathrow Airport, with average flight prices from Luxembourg averaging around £89.

What is the cheapest day to depart on your flight to London Heathrow Airport?

On average, the least expensive day to fly to London Heathrow Airport from Luxembourg is on a Thursday. momondo users have found tickets for Thursday departures for as low as £78. However, this price may fluctuate depending on the airline, the season, and holidays. Be sure to avoid booking your departure on a Monday as prices are generally higher than usual. According to our data, the average ticket price to London Heathrow Airport on Monday is £157.

What is the cheapest time of day to depart on your flight to London Heathrow Airport?

According to our data, the cheapest time of day to fly to London Heathrow Airport is in the evening. momondo users have found flights departing from Luxembourg to London Heathrow Airport in the evening for as low as £78. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are £148 on average. Flights to London Heathrow Airport from Luxembourg in the afternoon are generally more expensive because this time of day is more convenient for travellers’ schedules.

What is the cheapest Luxembourg to London Heathrow flight route?

Fly from Luxembourg to London Heathrow for the best Luxembourg - London Heathrow flight prices

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 Luxembourg when booking weeks ahead of your departure date. In general, you can expect to find flights to London Heathrow Airport for around £111 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London Heathrow Airport from Luxembourg for as low as £65 on momondo.

What cabin class options are available on Luxembourg to London Heathrow flights?

There are 2 cabin classes available to choose from on Luxembourg to London Heathrow flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

How have Luxembourg to London Heathrow Airport flight prices changed over time?

As of September 2025, prices for Luxembourg to London Heathrow Airport flights are approximately 48% more expensive when compared to flights at the same time last year.

When to book flights from Luxembourg to London Heathrow Airport

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

Cheap Luxembourg to London Heathrow Airport (LUX to LHR) flight deals and tips

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

Best price found

£59

Fastest flight time

1h 20m

Direct flights

Every day
The best one-way flight to London Heathrow Airport from Luxembourg in the past 72 hours is £59. The best return flight deal from Luxembourg to London Heathrow Airport found on momondo in the last 72 hours is £78.
The fastest flight from Luxembourg to London Heathrow Airport takes 1h 20m
Direct flights go from Luxembourg to London Heathrow Airport every day.
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  • How far is Luxembourg to London Heathrow by plane?

    The straight-line distance from Luxembourg to London Heathrow is 316.1 mi. Flights usually cover this in 1h 20m, depending on flying conditions and air traffic around both airports.

  • When did momondo last update prices for flights from Luxembourg Airport to London Heathrow Airport?

    Prices for flights from Luxembourg Airport to London Heathrow Airport are updated daily.

  • How many operators does momondo search for flights from Luxembourg Airport to London Heathrow Airport?

  • How old do you have to be to fly from Luxembourg Airport to London Heathrow Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Luxembourg Airport to London Heathrow Airport.

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

    The travel and health documents required for your trip to London Heathrow Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at London Heathrow Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular plane model from Luxembourg to London Heathrow Airport?

  • What is the most popular airline from Luxembourg to London Heathrow Airport?

Best airlines flying from Luxembourg to London Heathrow Airport

Compare and see reviews for airlines that fly from Luxembourg to London Heathrow Airport with momondo
Airline
Rating
Free Cancellation
Price
British AirwaysPriceFrom £64Free CancellationRating
6.6
7,361 reviews
Search British Airways flights

  • British Airways Flights From Luxembourg to London Heathrow Airport

    British Airways operates around 5 flights from Luxembourg to London Heathrow Airport every week. The average price of these flights found in the last 72 hours has been £107, but momondo users have found British Airways deals from Luxembourg to London Heathrow Airport from as low as £87 round-trip. British Airways has been scored 6.6/10 in 7,361 reviews.

Travelling to a place near London?

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Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Luxembourg to London . Millions of users trust and use momondo every year so you are in good hands.

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

Yes. momondo enables you to select and highlight flights to London from Luxembourg with this policy.

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

Once you have performed a search for Luxembourg 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 Luxembourg to London right now. Can momondo alert me if prices change?

If you are simply researching potential flights to London, momondo offers a useful price alert feature which will track prices for flights to London from Luxembourg and alert you when they change.

An easier way to manage your London Heathrow Airport trip

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