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Luxembourg

$494+ Cheap flights from Key Largo, FL to Luxembourg

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/2. Fares are subject to change and may not be available on all flights or dates of travel.
MIA — LUX
Feb 28 — Mar 71
Sat 2/28
Sat 3/7
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 January 29, 2026.

This British Airways deal was found by Cheapflights users on 1/27. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/210:40 pm
MIA
-
LUX
1 stop29h 55m
British Airways
Tue 8/1811:30 am
LUX
-
MIA
1 stop33h 00m
British Airways
Deal found 1/27$494
This FlightHub deal was found by Cheapflights users on 1/27. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/27:10 am
MIA
-
LUX
2 stops20h 30m
Multiple Airlines
Tue 8/183:25 pm
LUX
-
MIA
1 stop32h 00m
Multiple Airlines
Deal found 1/27$509
This Flightnetwork deal was found by Cheapflights users on 1/29. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/108:00 am
MIA
-
LUX
2 stops20h 00m
Multiple Airlines
Sun 11/2210:45 am
LUX
-
MIA
1 stop12h 45m
Multiple Airlines
Deal found 1/29$522
This Flightnetwork deal was found by Cheapflights users on 1/29. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/108:00 am
MIA
-
LUX
2 stops24h 00m
Air Canada
Sun 11/2210:45 am
LUX
-
MIA
2 stops31h 14m
Air Canada
Deal found 1/29$525
This Flightnetwork deal was found by Cheapflights users on 1/29. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/104:40 pm
MIA
-
LUX
1 stop11h 20m
SWISS
Sun 11/2210:45 am
LUX
-
MIA
1 stop33h 55m
SWISS
Deal found 1/29$526
This American Airlines deal was found by Cheapflights users on 1/27. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/25:00 pm
MIA
-
LUX
2 stops17h 00m
American Airlines
Tue 8/1811:30 am
LUX
-
MIA
2 stops19h 03m
American Airlines
Deal found 1/27$529
This Kiwi.com deal was found by Cheapflights users on 1/29. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/17:40 pm
MIA
-
LUX
1 stop31h 50m
SWISS
Tue 4/147:25 pm
LUX
-
MIA
1 stop24h 50m
SWISS
Deal found 1/29$543
This FlightHub deal was found by Cheapflights users on 1/29. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/77:00 am
MIA
-
LUX
2 stops20h 50m
Scandinavian Airlines
Wed 4/2210:30 am
LUX
-
MIA
2 stops18h 58m
Scandinavian Airlines
Deal found 1/29$547
This Gotogate deal was found by Cheapflights users on 1/26. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/254:40 pm
MIA
-
LUX
1 stop19h 35m
SWISS
Wed 3/410:35 am
LUX
-
MIA
1 stop12h 55m
SWISS
Deal found 1/26$549

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 January 29, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$549
(Gotogate)

Popular in

June

Cheapest in

April

Average price

$744
Provider with most accurate pricing for Miami-Luxembourg flight deals.
Search Deals
Provider most trusted by Cheapflights users for Miami-Luxembourg flights.
Search Deals
From Key Largo to Luxembourg
Search Deals
Highest demand for flights based on searches. 49% potential increase in price ($1,024 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 46% potential price decrease ($335 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
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 January 29, 2026.
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 2/25

4:40 pm-6:15 pm

1 stop19h 35m

Luxembourg

Wed 3/4

10:35 am-5:30 pm

1 stop12h 55m

$549

MiamiLuxembourg

MIA - LUX

MIALUX

Miami

Wed 2/25

12:20 pm-4:20 pm

2 stops22h 00m

Luxembourg

Wed 3/4

7:10 am-2:40 pm

1 stop13h 30m

$551

MiamiLuxembourg

MIA - LUX

MIALUX

Miami

Wed 4/1

6:45 pm-7:30 pm

1 stop18h 45m

Luxembourg

Wed 4/15

6:25 am-2:40 pm

1 stop14h 15m

$552

MiamiLuxembourg

MIA - LUX

MIALUX

Miami

Tue 3/31

4:50 pm-1:30 pm

1 stop14h 40m

Luxembourg

Tue 4/14

6:05 am-2:40 pm

1 stop14h 35m

$554

MiamiLuxembourg

MIA - LUX

MIALUX

Miami

Tue 3/31

4:50 pm-1:30 pm

1 stop14h 40m

Luxembourg

Wed 4/15

6:25 am-2:40 pm

1 stop14h 15m

$554

MiamiLuxembourg

MIA - LUX

MIALUX

Miami

Tue 3/31

4:50 pm-1:30 pm

1 stop14h 40m

Luxembourg

Thu 4/16

6:05 am-2:40 pm

1 stop14h 35m

$554

MiamiLuxembourg

MIA - LUX

MIALUX

Miami

Wed 4/8

5:00 pm-8:15 pm

1 stop21h 15m

Luxembourg

Thu 4/23

9:05 pm-8:15 pm

1 stop29h 10m

$555

MiamiLuxembourg

MIA - LUX

MIALUX

Miami

Sun 4/5

5:00 pm-4:00 pm

1 stop17h 00m

Luxembourg

Mon 4/20

9:05 pm-8:10 pm

1 stop29h 05m

$555

MiamiLuxembourg

MIA - LUX

MIALUX

Miami

Sun 4/5

5:00 pm-4:00 pm

1 stop17h 00m

Luxembourg

Tue 4/21

11:30 am-2:30 pm

1 stop33h 00m

$555

MiamiLuxembourg

MIA - LUX

MIALUX

Miami

Wed 4/8

10:40 pm-8:15 pm

1 stop15h 35m

Luxembourg

Tue 4/21

11:30 am-8:10 pm

1 stop14h 40m

$555

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/26

Showing 1-10 of 12 results
1
2

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
No data available for this route at this time. Please check back soon.

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 January 29, 2026.
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
7.1
Good
2,130 reviews

Entertainment

6.3

Crew

7.8

Comfort

7.1

Overall

7.1

Boarding

7.0

Food

6.2

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
7.1
Good
2,130 reviews
TAP AIR PORTUGAL
7.1
Good
2,130 reviews

Entertainment

6.3

Crew

7.8

Comfort

7.1

Overall

7.1

Boarding

7.0

Food

6.2

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?

    SWISS and Air Canada can get you from Key Largo to Luxembourg in just under 19h 35m. Your travel time can differ by up to 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

See prices for flight routes from nearby airports that may be better suited for you.
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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 January 29, 2026.
AirlineCheapestAverageFlexibilityOn-time
TAP AIR PORTUGALCheapest$606Average$736FlexibilityNo cancel feeOn-timeN/A

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