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$203+ Cheap flights from Key Largo, FL to Europe

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 2/10. Fares are subject to change and may not be available on all flights or dates of travel.
MIA — MAD
Jan 11 — Jan 181
Sun 1/11
Sun 1/18
1 adult, Economy
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Cheap flight deals from Key Largo to Europe

Cheapest flights from Key Largo to Europe
Explore the most affordable flight options available from Key Largo to Europe. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 12, 2025.

This Gotogate deal was found by Cheapflights users on 12/11. 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.
Tue 12/3011:15 pmMIA - MAD
1 stop18h 44mITA Airways
Wed 1/146:00 pmMAD - MIA
1 stop32h 55mITA Airways
Deal found 12/11$466
This Cheapflightsfares deal was found by Cheapflights users on 12/10. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/112:29 pmMIA - MAD
1 stop12h 46mLufthansa
Sun 12/145:55 amMAD - MIA
2 stops20h 14mLufthansa
Deal found 12/10$468
This Flysmarter deal was found by Cheapflights users on 12/10. 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 Flysmarter is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/103:35 pmMIA - MAD
Nonstop8h 15mBritish Airways
Sun 12/1411:00 amMAD - MIA
1 stop13h 17mBritish Airways
Deal found 12/10$471
This British Airways deal was found by Cheapflights users on 12/11. 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.
Tue 12/3010:30 pmMIA - MAD
Nonstop8h 35mBritish Airways
Wed 1/214:25 pmMAD - MIA
Nonstop10h 20mBritish Airways
Deal found 12/11$474
This Delta deal was found by Cheapflights users on 12/10. 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.
Wed 12/316:00 amMIA - MAD
1 stop21h 15mDelta
Tue 1/276:00 amMAD - MIA
1 stop14h 50mDelta
Deal found 12/10$477
This Finnair deal was found by Cheapflights users on 12/10. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/303:06 pmMIA - MAD
1 stop11h 49mMultiple Airlines
Thu 1/294:25 pmMAD - MIA
Nonstop10h 20mMultiple Airlines
Deal found 12/10$478
This United Airlines deal was found by Cheapflights users on 12/10. 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 12/112:29 pmMIA - MAD
1 stop12h 46mUnited Airlines
Wed 12/1711:15 amMAD - MIA
1 stop14h 59mUnited Airlines
Deal found 12/10$480
This KLM deal was found by Cheapflights users on 12/9. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/3112:45 pmMIA - MAD
1 stop14h 30mKLM
Tue 1/276:00 amMAD - MIA
1 stop14h 50mKLM
Deal found 12/9$481
This Expedia deal was found by Cheapflights users on 12/10. 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.
Wed 12/106:45 pmMIA - MAD
1 stop17h 05mMultiple Airlines
Sat 12/137:35 pmMAD - MIA
1 stop27h 55mMultiple Airlines
Deal found 12/10$482
This oojo deal was found by Cheapflights users on 12/11. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/3011:15 pmMIA - MAD
1 stop18h 44mITA Airways
Wed 1/216:00 pmMAD - MIA
1 stop32h 55mITA Airways
Deal found 12/11$483
This Delta deal was found by Cheapflights users on 12/9. 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.
Mon 12/2910:40 pmMIA - FCO
1 stop12h 45mDelta
Tue 1/136:10 amFCO - MIA
1 stop14h 40mDelta
Deal found 12/9$496
This Delta deal was found by Cheapflights users on 12/9. 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.
Tue 12/307:25 amMIA - FCO
1 stop21h 05mDelta
Mon 1/1212:45 pmFCO - MIA
1 stop32h 05mDelta
Deal found 12/9$497

Find flight deals from Key Largo to Europe

Keep the following information in mind while searching for Key Largo to Europe flight deals. Data was last updated December 12, 2025.

Round-trip from

$454
(lol.travel)

One-way from

$203
(SmartFares)

Popular in

June

Cheapest in

November

Average price

$1,194
From Key Largo to Europe
Search Deals
One-way flight from Key Largo to Europe
Search Deals
Highest demand for flights based on searches. 14% potential increase in price ($173 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($30 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Key Largo to Europe 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 12, 2025.
Use the filters below to find and compare flights from Key Largo to Europe that are best for you.

Fly from

Key Largo

Fly to

Europe

Route

Depart

Return

Price

MiamiLisbon

MIA - LIS

MIALIS

Miami

Wed 3/11

11:23 am-9:35 pm

2 stops30h 12m

Lisbon Humberto Delgado

Wed 3/18

7:05 am-7:05 pm

1 stop16h 00m

$466

MiamiLisbon

MIA - LIS

MIALIS

Miami

Wed 1/14

11:35 pm-12:35 pm

Nonstop8h 00m

Lisbon Humberto Delgado

Mon 1/26

10:10 am-2:50 pm

Nonstop9h 40m

$469

MiamiMadrid

MIA - MAD

MIAMAD

Miami

Wed 2/11

7:15 am-8:00 am

2 stops18h 45m

Madrid Barajas

Mon 2/16

1:35 pm-8:35 pm

2 stops37h 00m

$472

MiamiMadrid

MIA - MAD

MIAMAD

Miami

Wed 2/25

9:00 am-9:15 am

2 stops18h 15m

Madrid Barajas

Mon 3/2

1:35 pm-8:35 pm

2 stops37h 00m

$473

MiamiMadrid

MIA - MAD

MIAMAD

Miami

Tue 2/17

8:45 am-9:15 am

2 stops18h 30m

Madrid Barajas

Tue 2/24

1:35 pm-8:35 pm

2 stops37h 00m

$473

MiamiMadrid

MIA - MAD

MIAMAD

Miami

Sat 2/14

10:30 pm-1:05 pm

Nonstop8h 35m

Madrid Barajas

Sat 2/28

4:25 pm-8:45 pm

Nonstop10h 20m

$474

MiamiMadrid

MIA - MAD

MIAMAD

Miami

Thu 1/15

11:26 am-5:45 am

1 stop12h 19m

Madrid Barajas

Tue 1/20

4:25 pm-8:45 pm

Nonstop10h 20m

$478

MiamiMadrid

MIA - MAD

MIAMAD

Miami

Thu 1/15

12:20 pm-6:20 am

1 stop12h 00m

Madrid Barajas

Mon 1/19

4:25 pm-8:45 pm

Nonstop10h 20m

$478

MiamiMadrid

MIA - MAD

MIAMAD

Miami

Thu 1/15

12:20 pm-6:20 am

1 stop12h 00m

Madrid Barajas

Wed 1/28

10:00 am-1:55 pm

Nonstop9h 55m

$478

MiamiMadrid

MIA - MAD

MIAMAD

Miami

Fri 2/6

7:00 am-8:00 am

1 stop19h 00m

Madrid Barajas

Sat 2/21

1:05 pm-2:50 pm

1 stop31h 45m

$481

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/10

Showing 1-10 of 60 results
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Best time to book a flight from Key Largo to Europe

Have a flexible travel schedule? Discover the best time to fly to Europe 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 Europe

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

Currently, December is the cheapest month in which you can book a flight from Key Largo to Europe (average of $51). Flying from Key Largo to Europe in June is currently the most expensive (average of $572). 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 EU?

Find hourly flight availability from Key Largo to Europe. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 12, 2025.

It’s typically best to fly out from Key Largo to Europe in the evening. Doing so could potentially save you 4% on the flight price compared to flying in the afternoon, which is usually more expensive.

What is the cheapest day to fly from Key Largo to Europe?

Use this chart to determine the cheapest time to fly round-trip from Key Largo to Europe. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Key Largo to Europe flight should consider departing on Tuesday evenings when fares are most often at their lowest. Saturday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Key Largo to Europe

Explore weekly flight availability from Key Largo to Europe. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated December 12, 2025.

The most flights from KE9 to EU0 are scheduled on a Tuesday (24 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (10 on average).

Reviews of airlines servicing Europe

Get insights into the airlines that provide service to Europe. 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 Europe. Reviews last updated December 12, 2025.
Read reviews from past customers who have flown TAP AIR PORTUGAL, Air Europa, and Iberia from Key Largo to Europe. 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.
TAP AIR PORTUGAL
7.1
Good
2,087 reviews

Entertainment

6.3

Food

6.2

Boarding

7.0

Comfort

7.1

Crew

7.8

Overall

7.1

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
2,087 reviews
TAP AIR PORTUGAL
7.1
Good
2,087 reviews

Entertainment

6.3

Food

6.2

Boarding

7.0

Comfort

7.1

Crew

7.8

Overall

7.1

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.
Air Europa
7.0
Good
571 reviews
TAP AIR PORTUGAL
7.1
Good
2,087 reviews

Entertainment

6.3

Food

6.2

Boarding

7.0

Comfort

7.1

Crew

7.8

Overall

7.1

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.
Iberia
7.0
Good
3,045 reviews
TAP AIR PORTUGAL
7.1
Good
2,087 reviews

Entertainment

6.3

Food

6.2

Boarding

7.0

Comfort

7.1

Crew

7.8

Overall

7.1

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.
ITA Airways
6.7
Okay
1,102 reviews
TAP AIR PORTUGAL
7.1
Good
2,087 reviews

Entertainment

6.3

Food

6.2

Boarding

7.0

Comfort

7.1

Crew

7.8

Overall

7.1

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.
British Airways
6.7
Okay
7,571 reviews
TAP AIR PORTUGAL
7.1
Good
2,087 reviews

Entertainment

6.3

Food

6.2

Boarding

7.0

Comfort

7.1

Crew

7.8

Overall

7.1

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 Europe. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How popular is this Key Largo to Europe flight route?

    This flight path from Key Largo to Europe was viewed by 310 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • How long is the flight from Key Largo to Europe?

    TAP AIR PORTUGAL, United Airlines, and Finnair can get you from Key Largo to Europe in just under 8h. Your travel time can differ by up to 10h 45m. The distance between Key Largo and Europe is about 4146 mi. This flight may include one or multiple stops.

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

    For one-way options, check prices for French Bee. According to our data, you can fly for as low as $127. Users have also found prices from $128 and $138 on British Airways and Norse Atlantic UK, respectively.

  • What are the most popular routes from Key Largo to Europe?

    While some choose either Miami - London Heathrow or Miami - Rome Fiumicino, Miami - Madrid Barajas is the most popular route from Key Largo to Europe.

  • What are the most reliable airlines from Key Largo to Europe?

    Before booking your flight to Europe from Key Largo, check out the most reliable airlines to get you to your destination on time: Kuwait Airways (100%), Royal Jordanian (93%), Finnair( 87%).

  • What are the cheapest flights from Key Largo to Europe?

    While on average a flight from Key Largo to Europe is generally $1,604, our data shows the cheapest flight currently is $338. When looking at the most popular route, (Miami - Madrid Barajas), you can expect to pay $384 for that flight.

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

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

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

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

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

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

    Currently, December is the cheapest month in which you can book a flight from Key Largo to Europe (average of $51). Flying from Key Largo to Europe in June is currently the most expensive (average of $572). 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.

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Top 10 airlines flying from Key Largo to Europe

Discover the top 10 airlines that operate flights from Key Largo to Europe. 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 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$51Average$818FlexibilityNo cancel feeOn-time62%
SWISSCheapest$137Average$754FlexibilityNo cancel feeOn-time79%
ITA AirwaysCheapest$277Average$657FlexibilityNo cancel feeOn-time81%
French BeeCheapest$326Average$656FlexibilityNo cancel feeOn-timeN/A
Royal Air MarocCheapest$330Average$604FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$351Average$837FlexibilityNo cancel feeOn-time69%
Scandinavian AirlinesCheapest$371Average$653FlexibilityNo cancel feeOn-time77%
KLMCheapest$383Average$783FlexibilityNo cancel feeOn-time75%
VuelingCheapest$390Average$678FlexibilityNo cancel feeOn-time88%
Norse Atlantic UKCheapest$404Average$612FlexibilityNo cancel feeOn-timeN/A

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