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$187+ Cheap flights from Key Largo, FL to Spain

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 8/18. Fares are subject to change and may not be available on all flights or dates of travel.
MIA — MAD
ago. 5 — ago. 121
mar. 8/5
mar. 8/12
1 adult, Economy
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Cheap flight deals from Key Largo to Spain

Keep the following information in mind while searching for Key Largo to Spain flight deals. Data was last updated julio 31, 2025.

Round-trip from

$385
(Air Canada)

One-way from

$187
(Connections by easyJet)

Popular in

June

Cheapest in

January

Average price

$945
From Key Largo to Spain
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One-way flight from Key Largo to Spain
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Highest demand for flights based on searches. 26% potential increase in price ($241 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($31 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Find flight deals from Key Largo to Spain

Cheapest flights from Key Largo to Spain
Explore the most affordable flight options available from Key Largo to Spain. Find the lowest fares from popular airlines and budget airlines, with prices last updated on julio 31, 2025.

This Air Canada deal was found by Cheapflights users on 7/30. 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 Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 9/27:55 amMIA - MAD
1 stop16h 45mAir Canada
jue. 9/2512:30 pmMAD - MIA
1 stop15h 04mAir Canada
Deal found 7/30$385
This Delta deal was found by Cheapflights users on 7/31. 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.
mié. 9/247:10 amMIA - MAD
2 stops20h 00mDelta
jue. 10/210:05 amMAD - MIA
1 stop20h 18mDelta
Deal found 7/31$386
This Finnair deal was found by Cheapflights users on 7/30. 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.
mar. 8/122:55 pmMIA - MAD
Nonstop8h 40mFinnair
mié. 8/2712:40 pmMAD - MIA
1 stop18h 19mFinnair
Deal found 7/30$388
This Iberia deal was found by Cheapflights users on 7/29. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 8/172:55 pmMIA - MAD
Nonstop8h 40mIberia
mié. 9/31:45 pmMAD - MIA
1 stop14h 02mIberia
Deal found 7/29$389
This lol.travel deal was found by Cheapflights users on 7/31. 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 8/119:30 pmMIA - VLC
1 stop12h 45mAir Europa
mié. 8/2712:35 pmVLC - MIA
1 stop12h 10mAir Europa
Deal found 7/31$394
This Ovago deal was found by Cheapflights users on 7/31. 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.
mié. 9/178:45 pmMIA - MAD
1 stop30h 50mBritish Airways
mié. 9/2410:00 amMAD - MIA
Nonstop9h 10mBritish Airways
Deal found 7/31$395
This United Airlines deal was found by Cheapflights users on 7/28. 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.
mié. 9/1710:58 amMIA - MAD
2 stops23h 47mUnited Airlines
jue. 10/210:50 amMAD - MIA
1 stop14h 01mUnited Airlines
Deal found 7/28$396
This United deal was found by Cheapflights users on 7/30. 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.
sáb. 9/276:26 pmMIA - MAD
2 stops54h 14mMultiple Airlines
mar. 10/76:20 amMAD - MIA
2 stops20h 28mMultiple Airlines
Deal found 7/30$397
This Cheapflightsfares deal was found by Cheapflights users on 7/30. 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.
mar. 10/79:30 pmMIA - MAD
Nonstop8h 35mAir Europa
mié. 10/223:25 pmMAD - MIA
Nonstop9h 20mAir Europa
Deal found 7/30$404
This lol.travel deal was found by Cheapflights users on 7/31. 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 8/119:30 pmMIA - ALC
1 stop12h 50mAir Europa
mié. 8/278:45 pmALC - MIA
1 stop28h 00mAir Europa
Deal found 7/31$407
This Lufthansa deal was found by Cheapflights users on 7/31. 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.
mié. 11/56:45 pmMIA - MAD
1 stop17h 05mLufthansa
mar. 11/186:35 pmMAD - MIA
2 stops26h 05mLufthansa
Deal found 7/31$432
This KLM deal was found by Cheapflights users on 7/28. 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.
vie. 8/83:55 pmMIA - MAD
1 stop11h 40mKLM
jue. 8/2110:05 amMAD - MIA
1 stop20h 19mKLM
Deal found 7/28$434

Cheapflights Fare Finder

 
Customize your flight search to find flights from Key Largo to Spain 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 julio 31, 2025.
Use the filters below to find and compare flights from Key Largo to Spain that are best for you.

Fly from

Key Largo

Fly to

Spain

Route

Depart

Return

Price

MiamiMadrid

MIA - MAD

MIAMAD

Miami

mar. 9/2

7:55 am-6:40 am

1 stop16h 45m

Madrid Barajas

mar. 9/16

12:30 pm-1:20 pm

2 stops30h 50m

$385

MiamiMadrid

MIA - MAD

MIAMAD

Miami

mié. 9/24

7:10 am-9:10 am

2 stops20h 00m

Madrid Barajas

jue. 10/2

10:05 am-12:23 am

1 stop20h 18m

$386

MiamiMadrid

MIA - MAD

MIAMAD

Miami

mar. 8/12

2:55 pm-5:35 am

Nonstop8h 40m

Madrid Barajas

mié. 8/27

12:40 pm-12:59 am

1 stop18h 19m

$388

MiamiMadrid

MIA - MAD

MIAMAD

Miami

dom. 8/17

2:55 pm-5:35 am

Nonstop8h 40m

Madrid Barajas

mié. 9/3

1:45 pm-9:47 pm

1 stop14h 02m

$389

MiamiMadrid

MIA - MAD

MIAMAD

Miami

mar. 9/16

12:04 pm-8:20 am

2 stops38h 16m

Madrid Barajas

mar. 9/30

12:30 pm-3:11 pm

2 stops32h 41m

$392

MiamiValencia

MIA - VLC

MIAVLC

Miami

lun. 8/11

9:30 pm-4:15 pm

1 stop12h 45m

Valencia

mié. 8/27

12:35 pm-6:45 pm

1 stop12h 10m

$394

MiamiMadrid

MIA - MAD

MIAMAD

Miami

mié. 9/17

8:45 pm-9:35 am

1 stop30h 50m

Madrid Barajas

mié. 9/24

10:00 am-1:10 pm

Nonstop9h 10m

$395

MiamiMadrid

MIA - MAD

MIAMAD

Miami

sáb. 9/27

6:26 pm-6:40 am

2 stops54h 14m

Madrid Barajas

mar. 10/7

6:20 am-8:48 pm

2 stops20h 28m

$397

MiamiMadrid

MIA - MAD

MIAMAD

Miami

mar. 10/7

9:30 pm-12:05 pm

Nonstop8h 35m

Madrid Barajas

mié. 10/22

3:25 pm-6:45 pm

Nonstop9h 20m

$404

MiamiAlicante

MIA - ALC

MIAALC

Miami

lun. 8/11

9:30 pm-4:20 pm

1 stop12h 50m

Alicante

mié. 8/27

8:45 pm-6:45 pm

1 stop28h 00m

$407

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/30

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

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

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

Currently, November is the cheapest month in which you can book a flight from Key Largo to Spain (average of $543). Flying from Key Largo to Spain in June is currently the most expensive (average of $1,052). 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 ES?

Find hourly flight availability from Key Largo to Spain. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated julio 31, 2025.

When flying from Key Largo to Spain, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from Key Largo to Spain

Explore weekly flight availability from Key Largo to Spain. 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 julio 31, 2025.

The most flights from KE9 to ES0 are scheduled on a Monday (23 on average). You will have fewer flight options on Sunday, which is when the least amount of flights are scheduled (20 on average).

Reviews of airlines servicing Spain

Get insights into the airlines that provide service to Spain. 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 Spain. Reviews last updated julio 31, 2025.
Peruse reviews from past customers who have flown with Delta, KLM, and Austrian Airlines from Key Largo to Spain to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,981 reviews

Comfort

7.9

Overall

8.0

Boarding

8.2

Crew

8.5

Entertainment

7.9

Food

7.3

Reviews

1 / 20
6.0
Good

pilar,May 2025

RSW - ATL

The stewardess was not very nice because I requested two glasses of water. She didn’t even offer the snacks to me. She seemed angry and I felt very bad about her reaction. Also, the flight was full and you could not move. The airline should provide seats for obese people in consideration to the rest pf the passengers.
Delta
8.0
Very good
7,981 reviews
Delta
8.0
Very good
7,981 reviews

Comfort

7.9

Overall

8.0

Boarding

8.2

Crew

8.5

Entertainment

7.9

Food

7.3

Reviews

1 / 20
6.0
Good

pilar,May 2025

RSW - ATL

The stewardess was not very nice because I requested two glasses of water. She didn’t even offer the snacks to me. She seemed angry and I felt very bad about her reaction. Also, the flight was full and you could not move. The airline should provide seats for obese people in consideration to the rest pf the passengers.
KLM
7.8
Good
1,383 reviews
Delta
8.0
Very good
7,981 reviews

Comfort

7.9

Overall

8.0

Boarding

8.2

Crew

8.5

Entertainment

7.9

Food

7.3

Reviews

1 / 20
6.0
Good

pilar,May 2025

RSW - ATL

The stewardess was not very nice because I requested two glasses of water. She didn’t even offer the snacks to me. She seemed angry and I felt very bad about her reaction. Also, the flight was full and you could not move. The airline should provide seats for obese people in consideration to the rest pf the passengers.
Austrian Airlines
7.6
Good
823 reviews
Delta
8.0
Very good
7,981 reviews

Comfort

7.9

Overall

8.0

Boarding

8.2

Crew

8.5

Entertainment

7.9

Food

7.3

Reviews

1 / 20
6.0
Good

pilar,May 2025

RSW - ATL

The stewardess was not very nice because I requested two glasses of water. She didn’t even offer the snacks to me. She seemed angry and I felt very bad about her reaction. Also, the flight was full and you could not move. The airline should provide seats for obese people in consideration to the rest pf the passengers.
Finnair
7.6
Good
1,316 reviews
Delta
8.0
Very good
7,981 reviews

Comfort

7.9

Overall

8.0

Boarding

8.2

Crew

8.5

Entertainment

7.9

Food

7.3

Reviews

1 / 20
6.0
Good

pilar,May 2025

RSW - ATL

The stewardess was not very nice because I requested two glasses of water. She didn’t even offer the snacks to me. She seemed angry and I felt very bad about her reaction. Also, the flight was full and you could not move. The airline should provide seats for obese people in consideration to the rest pf the passengers.
Air France
7.5
Good
1,465 reviews
Delta
8.0
Very good
7,981 reviews

Comfort

7.9

Overall

8.0

Boarding

8.2

Crew

8.5

Entertainment

7.9

Food

7.3

Reviews

1 / 20
6.0
Good

pilar,May 2025

RSW - ATL

The stewardess was not very nice because I requested two glasses of water. She didn’t even offer the snacks to me. She seemed angry and I felt very bad about her reaction. Also, the flight was full and you could not move. The airline should provide seats for obese people in consideration to the rest pf the passengers.

Related info for your journey

Find useful and relevant information for your journey from Key Largo to Spain. 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 Spain flight route?

    Flights from Key Largo to Spain have been viewed 272 times in the past calendar month.

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

    $226 is the cheapest one-way deal found within the past few days, from TAP AIR PORTUGAL. You may also be able to find cheap deals on Air Europa and Iberia, with prices starting from $229 and $249, respectively.

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

    When deciding which route to take from Key Largo to Spain consider Miami - Madrid Barajas, Miami - Barcelona-El Prat or Miami - Alicante as they are the most popular.

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

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Key Largo to Spain on time: SAUDIA (88%), Kenya Airways (88%), Etihad Airways (88%).

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

    On average you can expect to pay $1,770 for a flight from Key Largo to Spain. The cheapest flight overall is $267 while the most popular route, (Miami - Madrid Barajas) is currently priced at $336.

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

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

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

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

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

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

    Currently, November is the cheapest month in which you can book a flight from Key Largo to Spain (average of $543). Flying from Key Largo to Spain in June is currently the most expensive (average of $1,052). 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 Spain

Discover the top 10 airlines that operate flights from Key Largo to Spain. 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 julio 31, 2025.
AirlineCheapestAverageFlexibilityOn-time
JetBlueCheapest$111Average$288FlexibilityNo cancel feeOn-time62%
Royal Air MarocCheapest$300Average$593FlexibilityNo cancel feeOn-time75%
AviancaCheapest$310Average$1,274FlexibilityNo cancel feeOn-time71%
SWISSCheapest$335Average$712FlexibilityNo cancel feeOn-time79%
LEVELCheapest$341Average$616FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$351Average$691FlexibilityNo cancel feeOn-time69%
KLMCheapest$383Average$724FlexibilityNo cancel feeOn-time75%
VuelingCheapest$390Average$679FlexibilityNo cancel feeOn-time88%
Virgin AtlanticCheapest$392Average$612FlexibilityNo cancel feeOn-time72%
Scandinavian AirlinesCheapest$398Average$701FlexibilityNo cancel feeOn-time77%

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