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Luxembourg

$306+ 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 2/19. Fares are subject to change and may not be available on all flights or dates of travel.
MIA — LUX
Jan 15 — Jan 221
Thu 1/15
Thu 1/22
1 adult, Economy
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Cheap 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 December 16, 2025.

This Air France deal was found by Cheapflights users on 12/14. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/2510:40 pmMIA - LUX
1 stop17h 15mMultiple Airlines
Mon 12/296:20 pmLUX - MIA
1 stop26h 30mMultiple Airlines
Deal found 12/14$925
This Delta deal was found by Cheapflights users on 12/14. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/2512:45 pmMIA - LUX
2 stops19h 30mDelta
Mon 12/296:00 amLUX - MIA
2 stops20h 57mDelta
Deal found 12/14$1,015
This Expedia deal was found by Cheapflights users on 12/14. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/2510:30 pmMIA - LUX
1 stop18h 15mMultiple Airlines
Tue 12/306:20 pmLUX - MIA
2 stops32h 25mMultiple Airlines
Deal found 12/14$1,022
This Ovago deal was found by Cheapflights users on 12/15. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/262:25 pmMIA - LUX
2 stops17h 10mLufthansa
Mon 1/55:00 pmLUX - MIA
2 stops33h 22mLufthansa
Deal found 12/15$1,161
This CheapOair deal was found by Cheapflights users on 12/15. 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.
Fri 12/269:45 pmMIA - LUX
1 stop13h 00mMultiple Airlines
Mon 1/59:55 pmLUX - MIA
2 stops24h 00mMultiple Airlines
Deal found 12/15$1,214
This KAYAK deal was found by Cheapflights users on 12/15. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/2610:20 amMIA - LUX
1 stop24h 45mTurkish Airlines
Mon 1/56:00 pmLUX - MIA
1 stop32h 35mTurkish Airlines
Deal found 12/15$1,273

Find 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 December 16, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$528
(SmartFares)

Popular in

June

Cheapest in

November

Average price

$756
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
Search Deals
Highest demand for flights based on searches. 17% potential increase in price ($169 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($23 potential savings vs. average RT price).
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Average for round-trip flights in December 2025
Search Deals

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 December 16, 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

Wed 1/28

8:40 pm-1:35 pm

1 stop34h 55m

Luxembourg

Sun 2/1

1:35 pm-6:35 pm

1 stop35h 00m

$543

MiamiLuxembourg

MIA - LUX

MIALUX

Miami

Wed 2/11

4:35 pm-4:50 pm

1 stop18h 15m

Luxembourg

Mon 2/16

12:05 pm-2:50 pm

1 stop32h 45m

$550

MiamiLuxembourg

MIA - LUX

MIALUX

Miami

Wed 2/11

10:00 pm-4:50 pm

1 stop12h 50m

Luxembourg

Mon 2/16

9:55 pm-2:40 pm

1 stop22h 45m

$550

MiamiLuxembourg

MIA - LUX

MIALUX

Miami

Tue 2/3

6:50 pm-3:00 pm

1 stop14h 10m

Luxembourg

Thu 2/19

9:55 pm-4:55 pm

1 stop25h 00m

$550

MiamiLuxembourg

MIA - LUX

MIALUX

Miami

Fri 3/20

1:58 pm-10:30 am

2 stops15h 32m

Luxembourg

Thu 3/26

11:00 am-11:43 pm

2 stops17h 43m

$555

MiamiLuxembourg

MIA - LUX

MIALUX

Miami

Mon 1/19

4:35 pm-3:50 pm

2 stops41h 15m

Luxembourg

Sun 2/1

5:40 pm-2:50 pm

1 stop27h 10m

$571

MiamiLuxembourg

MIA - LUX

MIALUX

Miami

Mon 1/19

7:25 am-10:00 am

2 stops20h 35m

Luxembourg

Sun 2/1

2:30 pm-11:25 am

2 stops26h 55m

$593

MiamiLuxembourg

MIA - LUX

MIALUX

Miami

Wed 1/28

10:00 pm-4:50 pm

1 stop12h 50m

Luxembourg

Sun 2/1

6:15 pm-7:30 pm

1 stop31h 15m

$602

MiamiLuxembourg

MIA - LUX

MIALUX

Miami

Thu 2/19

4:35 pm-4:40 pm

2 stops18h 05m

$306

MiamiLuxembourg

MIA - LUX

MIALUX

Miami

Thu 2/19

4:40 pm-10:00 am

1 stop11h 20m

$424

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/16

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 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 December 16, 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 December 16, 2025.
Get a feel of what it's like to fly with TAP AIR PORTUGAL 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.
TAP AIR PORTUGAL
7.2
Good
2,090 reviews

Entertainment

6.3

Boarding

7.0

Food

6.2

Comfort

7.1

Overall

7.2

Crew

7.8

Reviews

1 / 20
4.0
Okay

Maxime,Nov 2025

EWR - LIS

The solo business class seat as part of the 4x2 configuration is very cramped. Do not recommend choosing this.
TAP AIR PORTUGAL
7.2
Good
2,090 reviews
TAP AIR PORTUGAL
7.2
Good
2,090 reviews

Entertainment

6.3

Boarding

7.0

Food

6.2

Comfort

7.1

Overall

7.2

Crew

7.8

Reviews

1 / 20
4.0
Okay

Maxime,Nov 2025

EWR - LIS

The solo business class seat as part of the 4x2 configuration is very cramped. Do not recommend choosing this.

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?

    Scandinavian Airlines, TAP AIR PORTUGAL, and American Airlines can get you from Key Largo to Luxembourg in just under 12h 50m. Your travel time can differ by up to 22h 05m. 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.

  • 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.

See more FAQs

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Alternative routes for Key Largo to Luxembourg

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Top airline flying from Key Largo to Luxembourg

Discover the top airline 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 December 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
TAP AIR PORTUGALCheapest$606Average$736FlexibilityNo cancel feeOn-timeN/A

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