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Luxembourg

$367+ Cheap flights from Key Largo, FL to Luxembourg

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 12/12. Fares are subject to change and may not be available on all flights or dates of travel.
MIA — LUX
Nov 26 — Dec 31
Wed 11/26
Wed 12/3
1 adult, Economy
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Cheap flight deals from Key Largo to Luxembourg

Keep the following information in mind while searching for Key Largo to Luxembourg flight deals. Data was last updated October 27, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$614
(CheapOair)

One-way from

$367
(Kiwi.com)

Popular in

June

Cheapest in

February

Average price

$736
Provider with most accurate pricing for Miami-Luxembourg flight deals.
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Provider most trusted by Cheapflights users for Miami-Luxembourg flights.
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From Key Largo to Luxembourg
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One-way flight from Key Largo to Luxembourg
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Highest demand for flights based on searches. 20% potential increase in price ($195 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($22 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Find flight deals from Key Largo to Luxembourg

Cheapest flights from Key Largo to Luxembourg
Explore the most affordable flight options available from Key Largo to Luxembourg. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 27, 2025.

This CheapOair deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/610:30 pmMIA - LUX
1 stop36h 35mTurkish Airlines
Wed 11/1910:50 amLUX - MIA
1 stop39h 45mTurkish Airlines
Deal found 10/26$614
This Booking.com deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/46:45 pmMIA - LUX
1 stop15h 35mLufthansa
Sun 11/167:10 amLUX - MIA
1 stop13h 30mLufthansa
Deal found 10/26$649
This United deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/46:45 pmMIA - LUX
1 stop18h 45mMultiple Airlines
Sun 11/167:10 amLUX - MIA
2 stops34h 29mMultiple Airlines
Deal found 10/26$669
This United Airlines deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/612:23 pmMIA - LUX
2 stops15h 42mMultiple Airlines
Wed 11/197:10 amLUX - MIA
2 stops18h 03mMultiple Airlines
Deal found 10/26$686
This Lufthansa deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/234:40 pmMIA - LUX
1 stop11h 25mMultiple Airlines
Sun 11/302:30 pmLUX - MIA
1 stop30h 10mMultiple Airlines
Deal found 10/26$778
This United Airlines deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/612:23 pmMIA - LUX
2 stops21h 57mUnited Airlines
Wed 11/199:30 amLUX - MIA
3 stops35h 07mUnited Airlines
Deal found 10/26$927

Cheapflights Fare Finder

 
Customize your flight search to find flights from Key Largo to Luxembourg 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 2,558,603 searches. Data last updated October 27, 2025.
Use the filters below to find and compare flights from Key Largo to Luxembourg that are best for you.

Fly from

Key Largo

Fly to

Luxembourg

Route

Depart

Return

Price

MiamiLuxembourg

MIA - LUX

MIALUX

Miami

Thu 11/6

10:30 pm-5:05 pm

1 stop36h 35m

Luxembourg

Wed 11/19

10:50 am-8:35 pm

1 stop39h 45m

$614

MiamiLuxembourg

MIA - LUX

MIALUX

Miami

Thu 11/6

12:23 pm-10:05 am

2 stops15h 42m

Luxembourg

Wed 11/19

7:10 am-7:13 pm

2 stops18h 03m

$686

MiamiLuxembourg

MIA - LUX

MIALUX

Miami

Tue 3/10

7:00 am-7:20 pm

2 stops31h 20m

Luxembourg

Thu 3/12

8:00 pm-7:35 pm

1 stop28h 35m

$704

MiamiLuxembourg

MIA - LUX

MIALUX

Miami

Sun 11/23

4:40 pm-10:05 am

1 stop11h 25m

Luxembourg

Sun 11/30

2:30 pm-2:40 pm

1 stop30h 10m

$778

MiamiLuxembourg

MIA - LUX

MIALUX

Miami

Tue 3/10

5:35 pm-11:15 am

1 stop12h 40m

Luxembourg

Thu 3/12

5:40 pm-3:50 pm

1 stop27h 10m

$896

MiamiLuxembourg

MIA - LUX

MIALUX

Miami

Fri 12/12

8:53 pm-12:40 pm

2 stops33h 47m

$367

MiamiLuxembourg

MIA - LUX

MIALUX

Miami

Tue 12/23

7:55 pm-5:50 pm

1 stop15h 55m

$380

MiamiLuxembourg

MIA - LUX

MIALUX

Miami

Fri 12/12

4:40 pm-10:00 am

1 stop11h 20m

$444

MiamiLuxembourg

MIA - LUX

MIALUX

Miami

Tue 12/23

4:06 pm-4:20 pm

2 stops42h 14m

$463

MiamiLuxembourg

MIA - LUX

MIALUX

Miami

Tue 12/23

7:55 pm-8:40 am

3 stops30h 45m

$618

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/27

Best time to book a flight from Key Largo to Luxembourg

Have a flexible travel schedule? Discover the best time to fly to Luxembourg from Key Largo with our price prediction graph.
Estimated round-trip 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 Key Largo to Luxembourg

What is the cheapest month to book a flight from Key Largo to Luxembourg?

Currently, February is the cheapest month in which you can book a flight from Key Largo to Luxembourg (average of $441). Flying from Key Largo to Luxembourg in June is currently the most expensive (average of $952). 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 KE9 to LU?

Find hourly flight availability from Key Largo to Luxembourg. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 27, 2025.

When flying from Key Largo to Luxembourg, the time of day you fly usually plays a role in the price. Save by searching for a flight in the morning, which can drop the price by up to 6% versus a flight in the evening.

Reviews of airlines servicing Luxembourg

Get insights into the airlines that provide service to Luxembourg. 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 Luxembourg. Reviews last updated October 27, 2025.
Get a feel of what it's like to fly with SWISS, TAP AIR PORTUGAL, and Lufthansa from Key Largo to Luxembourg by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
SWISS
7.5
Good
1,774 reviews

Food

7.1

Comfort

7.4

Entertainment

6.8

Overall

7.5

Boarding

7.7

Crew

8.2

Reviews

1 / 20
6.0
Good

Yvette,Nov 2024

BOS - ZRH

Food was not very good and the options were poor. The seat wasn't very comfortable. I would not choose to fly on this airline again. Their website was also difficult to navigate.
SWISS
7.5
Good
1,774 reviews
SWISS
7.5
Good
1,774 reviews

Food

7.1

Comfort

7.4

Entertainment

6.8

Overall

7.5

Boarding

7.7

Crew

8.2

Reviews

1 / 20
6.0
Good

Yvette,Nov 2024

BOS - ZRH

Food was not very good and the options were poor. The seat wasn't very comfortable. I would not choose to fly on this airline again. Their website was also difficult to navigate.
TAP AIR PORTUGAL
7.1
Good
2,033 reviews
SWISS
7.5
Good
1,774 reviews

Food

7.1

Comfort

7.4

Entertainment

6.8

Overall

7.5

Boarding

7.7

Crew

8.2

Reviews

1 / 20
6.0
Good

Yvette,Nov 2024

BOS - ZRH

Food was not very good and the options were poor. The seat wasn't very comfortable. I would not choose to fly on this airline again. Their website was also difficult to navigate.
Lufthansa
6.8
Okay
7,532 reviews
SWISS
7.5
Good
1,774 reviews

Food

7.1

Comfort

7.4

Entertainment

6.8

Overall

7.5

Boarding

7.7

Crew

8.2

Reviews

1 / 20
6.0
Good

Yvette,Nov 2024

BOS - ZRH

Food was not very good and the options were poor. The seat wasn't very comfortable. I would not choose to fly on this airline again. Their website was also difficult to navigate.

Related info for your journey

Find useful and relevant information for your journey from Key Largo to Luxembourg. 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 Key Largo to Luxembourg?

    Turkish Airlines and Scandinavian Airlines can get you from Key Largo to Luxembourg in just under 31h 20m. Your travel time can differ by up to 5h 15m. Key Largo and Luxembourg are separated by a distance of 4727 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines to fly from Key Largo to Luxembourg one-way?

    The cheapest airlines for a one-way flight from Key Largo to Luxembourg are Scandinavian Airlines ($380), SWISS ($444), and United Airlines ($463).

  • Can I find deals for flights from Key Largo to Luxembourg that include hotel bookings?

    Yes. In addition to deals on Key Largo to Luxembourg flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Key Largo to Luxembourg?

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

  • Can I find deals for business class flights from Key Largo to Luxembourg?

    Yes. Cheapflights offers flight deals from Key Largo to Luxembourg 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 Key Largo to Luxembourg?

    Currently, February is the cheapest month in which you can book a flight from Key Largo to Luxembourg (average of $441). Flying from Key Largo to Luxembourg in June is currently the most expensive (average of $952). 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

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Alternative routes for Key Largo to Luxembourg

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Top 2 airlines flying from Key Largo to Luxembourg

Discover the top 2 airlines that operate flights from Key Largo to Luxembourg. 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 2,558,603 searches. Data last updated October 27, 2025.
AirlineCheapestAverageFlexibilityOn-time
SWISSCheapest$472Average$685FlexibilityNo cancel feeOn-time79%
TAP AIR PORTUGALCheapest$606Average$736FlexibilityNo cancel feeOn-timeN/A

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