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Barcelona-El Prat

$277+ Cheap flights from Key Largo, FL to Barcelona-El Prat (BCN)

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 3/17. Fares are subject to change and may not be available on all flights or dates of travel.
MIA — BCN
ene. 14 — ene. 211
mié. 1/14
mié. 1/21
1 adult, Economy
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Cheapflights Tip: The best prices from Key Largo to Barcelona-El Prat are usually found in February or January, booked 78 days in advance, depart on a Sunday or Wednesday and return on a Wednesday

Cheap flight deals from Key Largo to Barcelona-El Prat

Cheapest flights from Key Largo to Barcelona-El Prat
Explore the most affordable flight options available from Key Largo to Barcelona-El Prat. Find the lowest fares from popular airlines and budget airlines, with prices last updated on diciembre 15, 2025.

This Iberia deal was found by Cheapflights users on 12/13. 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.
sáb. 12/275:20 pmMIA - BCN
1 stop13h 20mIberia
jue. 1/1511:00 amBCN - MIA
Nonstop10h 25mIberia
Deal found 12/13$565
This Iberia 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 12/275:20 pmMIA - BCN
1 stop13h 20mIberia
vie. 1/163:05 pmBCN - MIA
Nonstop10h 55mIberia
Deal found 12/14$585
This Iberia 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 12/2410:30 pmMIA - BCN
1 stop11h 45mIberia
vie. 1/163:05 pmBCN - MIA
Nonstop10h 55mIberia
Deal found 12/15$590
This oojo deal was found by Cheapflights users on 12/12. 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.
vie. 12/2610:00 pmMIA - BCN
1 stop29h 10mBritish Airways
mar. 1/2011:00 amBCN - MIA
Nonstop10h 25mBritish Airways
Deal found 12/12$631
This oojo deal was found by Cheapflights users on 12/12. 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.
vie. 12/2611:35 pmMIA - BCN
1 stop18h 10mTAP AIR PORTUGAL
mar. 1/209:10 pmBCN - MIA
1 stop23h 40mTAP AIR PORTUGAL
Deal found 12/12$632
This Delta deal was found by Cheapflights users on 12/13. 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.
sáb. 12/278:00 pmMIA - BCN
1 stop15h 00mDelta
vie. 1/1610:55 amBCN - MIA
1 stop15h 49mDelta
Deal found 12/13$642
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.
sáb. 12/278:00 pmMIA - BCN
1 stop15h 00mDelta
jue. 1/1510:15 amBCN - MIA
1 stop14h 39mDelta
Deal found 12/14$643

Find flight deals from Key Largo to Barcelona-El Prat

Keep the following information in mind while searching for Key Largo to Barcelona-El Prat flight deals. Data was last updated diciembre 15, 2025.

Round-trip from

$485
(FlightHub)

One-way from

$277
(Kiwi.com)

Popular in

June

Cheapest in

February

Average price

$811
From Key Largo to Barcelona-El Prat
Search Deals
One-way flight from Key Largo to Barcelona-El Prat
Search Deals
Highest demand for flights based on searches. 24% potential increase in price ($225 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% 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 Barcelona-El Prat 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 diciembre 15, 2025.
Use the filters below to find and compare flights from Key Largo to Barcelona-El Prat Airport that are best for you.

Fly from

Key Largo

Fly to

Barcelona-El Prat

Route

Depart

Return

Price

MiamiBarcelona

MIA - BCN

MIABCN

Miami

mar. 1/27

9:45 pm-4:35 pm

1 stop12h 50m

Barcelona-El Prat

mié. 2/4

11:50 am-7:30 pm

1 stop13h 40m

$504

MiamiBarcelona

MIA - BCN

MIABCN

Miami

mar. 1/13

6:45 pm-5:35 pm

1 stop16h 50m

Barcelona-El Prat

mar. 1/20

1:35 pm-9:54 pm

3 stops38h 19m

$577

MiamiBarcelona

MIA - BCN

MIABCN

Miami

lun. 3/16

10:45 pm-4:35 pm

1 stop12h 50m

Barcelona-El Prat

jue. 3/19

10:00 pm-8:30 pm

2 stops27h 30m

$593

MiamiBarcelona

MIA - BCN

MIABCN

Miami

mar. 1/13

6:20 pm-5:05 pm

2 stops16h 45m

Barcelona-El Prat

mié. 1/21

11:10 am-2:50 pm

1 stop33h 40m

$594

MiamiBarcelona

MIA - BCN

MIABCN

Miami

dom. 1/11

7:40 am-11:10 am

2 stops21h 30m

Barcelona-El Prat

mié. 1/21

11:10 am-2:50 pm

1 stop33h 40m

$594

MiamiBarcelona

MIA - BCN

MIABCN

Miami

mié. 2/4

11:39 am-6:20 pm

2 stops24h 41m

Barcelona-El Prat

lun. 2/9

7:10 pm-6:35 pm

1 stop29h 25m

$596

MiamiBarcelona

MIA - BCN

MIABCN

Miami

dom. 1/18

7:40 am-8:50 am

2 stops19h 10m

Barcelona-El Prat

vie. 1/30

10:55 am-10:48 pm

1 stop17h 53m

$597

MiamiBarcelona

MIA - BCN

MIABCN

Miami

mar. 1/27

3:37 pm-2:00 pm

2 stops16h 23m

Barcelona-El Prat

mié. 2/4

10:55 am-12:51 am

1 stop19h 56m

$597

MiamiBarcelona

MIA - BCN

MIABCN

Miami

mar. 2/24

10:55 am-8:20 am

2 stops15h 25m

Barcelona-El Prat

jue. 3/19

6:50 am-8:27 pm

2 stops18h 37m

$602

MiamiBarcelona

MIA - BCN

MIABCN

Miami

mié. 2/4

9:45 pm-8:55 am

1 stop29h 10m

Barcelona-El Prat

lun. 2/9

10:00 pm-7:30 pm

2 stops27h 30m

$603

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/13

Showing 1-10 of 21 results
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Best time to book a flight from Key Largo to Barcelona-El Prat

Have a flexible travel schedule? Discover the best time to fly to Barcelona-El Prat 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 Barcelona-El Prat Airport

How far ahead should I book a flight from Key Largo to Barcelona-El Prat Airport?

Use this chart to determine the optimal time to book a round-trip flight from Key Largo to Barcelona-El Prat. Price data was last updated on December 12, 2025.

Booking 78 days in advance of your planned departure date is, on average, the best time to get cheap flights from Key Largo to Barcelona-El Prat Airport. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Key Largo to Barcelona-El Prat Airport?

Currently, October is the cheapest month in which you can book a flight from Key Largo to Barcelona-El Prat Airport (average of $367). Flying from Key Largo to Barcelona-El Prat Airport 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 BCN?

Find hourly flight availability from Key Largo to Barcelona-El Prat. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated diciembre 15, 2025.

One of the essential ways to save on airfare from Key Largo to Barcelona-El Prat Airport is to remain as flexible as possible. Flights that are in the morning tend to be the most expensive. A flight in the afternoon could potentially save you up to 25% on airfare.

What is the cheapest day to fly from Key Largo to Barcelona-El Prat Airport?

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

Travelers seeking maximum savings on their Key Largo to Barcelona-El Prat Airport flight should consider departing on Tuesday evenings when fares are most often at their lowest. Thursday mornings flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing Barcelona-El Prat

Get insights into the airlines that provide service to Barcelona-El Prat. 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 Barcelona-El Prat. Reviews last updated diciembre 15, 2025.
Read through reviews of airlines operating flights from Key Largo to Barcelona-El Prat Airport, such as American Airlines, TAP AIR PORTUGAL, and Iberia. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
American Airlines
7.2
Good
11,051 reviews

Food

6.5

Comfort

7.2

Boarding

7.5

Overall

7.2

Crew

8.0

Entertainment

6.9

Reviews

1 / 20
2.0
Mediocre

Anonymous,Aug 2025

MIA - DCA

Flight delayed 5 hours and was told it was due to mechanical issues. Instead of providing lodging due to missed connecting flight, American changed the cause of delay to weather, which meant they were not able required to provide a hotel. To make matters worse, one of our checked bags was lost even though its status said it was “by the plane” but no one at the service desk seemed able to locate it.
American Airlines
7.2
Good
11,051 reviews
American Airlines
7.2
Good
11,051 reviews

Food

6.5

Comfort

7.2

Boarding

7.5

Overall

7.2

Crew

8.0

Entertainment

6.9

Reviews

1 / 20
2.0
Mediocre

Anonymous,Aug 2025

MIA - DCA

Flight delayed 5 hours and was told it was due to mechanical issues. Instead of providing lodging due to missed connecting flight, American changed the cause of delay to weather, which meant they were not able required to provide a hotel. To make matters worse, one of our checked bags was lost even though its status said it was “by the plane” but no one at the service desk seemed able to locate it.
TAP AIR PORTUGAL
7.2
Good
2,089 reviews
American Airlines
7.2
Good
11,051 reviews

Food

6.5

Comfort

7.2

Boarding

7.5

Overall

7.2

Crew

8.0

Entertainment

6.9

Reviews

1 / 20
2.0
Mediocre

Anonymous,Aug 2025

MIA - DCA

Flight delayed 5 hours and was told it was due to mechanical issues. Instead of providing lodging due to missed connecting flight, American changed the cause of delay to weather, which meant they were not able required to provide a hotel. To make matters worse, one of our checked bags was lost even though its status said it was “by the plane” but no one at the service desk seemed able to locate it.
Iberia
7.0
Good
3,051 reviews
American Airlines
7.2
Good
11,051 reviews

Food

6.5

Comfort

7.2

Boarding

7.5

Overall

7.2

Crew

8.0

Entertainment

6.9

Reviews

1 / 20
2.0
Mediocre

Anonymous,Aug 2025

MIA - DCA

Flight delayed 5 hours and was told it was due to mechanical issues. Instead of providing lodging due to missed connecting flight, American changed the cause of delay to weather, which meant they were not able required to provide a hotel. To make matters worse, one of our checked bags was lost even though its status said it was “by the plane” but no one at the service desk seemed able to locate it.
British Airways
6.7
Okay
7,575 reviews
American Airlines
7.2
Good
11,051 reviews

Food

6.5

Comfort

7.2

Boarding

7.5

Overall

7.2

Crew

8.0

Entertainment

6.9

Reviews

1 / 20
2.0
Mediocre

Anonymous,Aug 2025

MIA - DCA

Flight delayed 5 hours and was told it was due to mechanical issues. Instead of providing lodging due to missed connecting flight, American changed the cause of delay to weather, which meant they were not able required to provide a hotel. To make matters worse, one of our checked bags was lost even though its status said it was “by the plane” but no one at the service desk seemed able to locate it.

Related info for your journey

Find useful and relevant information for your journey from Key Largo to Barcelona-El Prat. 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 Barcelona-El Prat Airport?

    Air Europa, United Airlines, and Delta can get you from Key Largo to Barcelona-El Prat Airport in just under 12h 50m. Your travel time can differ by up to 4h. There are 4685 mi between Key Largo and Barcelona-El Prat Airport. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines to fly from Key Largo to Barcelona-El Prat Airport one-way?

    The cheapest airline one-way is Scandinavian Airlines, with whom users have recently found tickets for as low as $202. However, be on the lookout for offers from LEVEL and LEVEL, as they are both options that can get you from Key Largo to Barcelona-El Prat Airport for a low price.

  • What are the most reliable airlines from Key Largo to Barcelona-El Prat Airport?

    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 Barcelona-El Prat Airport on time: Finnair (74%), American Airlines (70%), Iberia (70%).

  • What are the cheapest flights from Key Largo to Barcelona-El Prat Airport?

    The cheapest flight price from Key Largo to Barcelona-El Prat Airport is $212. On average you can expect to pay $1,075. The most popular route, (Miami - Barcelona-El Prat), can usually be booked for $435.

  • Can I find deals for flights from Key Largo to Barcelona-El Prat that include hotel bookings?

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

  • How can I find direct flights from Key Largo to Barcelona-El Prat?

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

  • Can I find deals for business class flights from Key Largo to Barcelona-El Prat?

    Yes. Cheapflights offers flight deals from Key Largo to Barcelona-El Prat 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 Barcelona-El Prat Airport?

    Currently, October is the cheapest month in which you can book a flight from Key Largo to Barcelona-El Prat Airport (average of $367). Flying from Key Largo to Barcelona-El Prat Airport 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.

See more FAQs

Traveling to a place near Barcelona-El Prat Airport?

Book flights to Barcelona-El Prat Airport if you plan to visit one of these locations
Calella
Roses
L'Hospitalet de Llobregat
Cadaques
El Prat de Llobregat
Badalona
Pineda de Mar

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Top 10 airlines flying from Key Largo to Barcelona-El Prat

Discover the top 10 airlines that operate flights from Key Largo to Barcelona-El Prat. 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 diciembre 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
ITA AirwaysCheapest$310Average$837FlexibilityNo cancel feeOn-time81%
LEVELCheapest$342Average$622FlexibilityNo cancel feeOn-timeN/A
Scandinavian AirlinesCheapest$385Average$581FlexibilityNo cancel feeOn-time77%
VuelingCheapest$389Average$664FlexibilityNo cancel feeOn-time88%
TAP AIR PORTUGALCheapest$394Average$602FlexibilityNo cancel feeOn-timeN/A
LEVELCheapest$430Average$691FlexibilityNo cancel feeOn-timeN/A
Air EuropaCheapest$432Average$653FlexibilityNo cancel feeOn-time83%
United AirlinesCheapest$476Average$799FlexibilityNo cancel feeOn-time69%
British AirwaysCheapest$481Average$736FlexibilityNo cancel feeOn-time70%
IcelandairCheapest$495Average$797FlexibilityNo cancel feeOn-time76%

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