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Barcelona-El Prat

$249+ 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 4/19. Fares are subject to change and may not be available on all flights or dates of travel.
MIA — BCN
Feb 28 — Mar 71
Sat 2/28
Sat 3/7
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 21 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 January 29, 2026.

This Ticket 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 Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/811:50 pm
MIA
-
BCN
1 stop17h 55m
TAP AIR PORTUGAL
Sun 2/2210:55 am
BCN
-
MIA
1 stop33h 55m
TAP AIR PORTUGAL
Deal found 1/27$435
This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 1/2811:35 pm
MIA
-
BCN
1 stop18h 10m
TAP AIR PORTUGAL
Wed 2/116:05 pm
BCN
-
MIA
1 stop26h 25m
TAP AIR PORTUGAL
Deal found 1/27$438
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/89:45 pm
MIA
-
BCN
Nonstop9h 20m
Iberia
Sun 2/223:05 pm
BCN
-
MIA
Nonstop10h 55m
Iberia
Deal found 1/26$444
This Iberia 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/119:45 pm
MIA
-
BCN
Nonstop9h 20m
Iberia
Wed 2/183:05 pm
BCN
-
MIA
Nonstop10h 55m
Iberia
Deal found 1/26$446
This oojo 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/274:35 pm
MIA
-
BCN
1 stop11h 30m
TAP AIR PORTUGAL
Sat 3/79:10 pm
BCN
-
MIA
1 stop23h 40m
TAP AIR PORTUGAL
Deal found 1/27$447
This oojo 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/114:35 pm
MIA
-
BCN
1 stop13h 10m
TAP AIR PORTUGAL
Sun 2/2210:55 am
BCN
-
MIA
1 stop33h 55m
TAP AIR PORTUGAL
Deal found 1/27$454
This oojo 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/104:35 pm
MIA
-
BCN
1 stop21h 45m
TAP AIR PORTUGAL
Wed 2/186:45 am
BCN
-
MIA
1 stop14h 05m
TAP AIR PORTUGAL
Deal found 1/26$456
This oojo 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/44:35 pm
MIA
-
BCN
1 stop11h 30m
TAP AIR PORTUGAL
Wed 2/256:45 am
BCN
-
MIA
1 stop14h 05m
TAP AIR PORTUGAL
Deal found 1/27$457
This oojo deal was found by Cheapflights users on 1/28. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/94:35 pm
MIA
-
BCN
1 stop13h 10m
TAP AIR PORTUGAL
Mon 3/96:05 pm
BCN
-
MIA
1 stop26h 45m
TAP AIR PORTUGAL
Deal found 1/28$458
This oojo 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/104:35 pm
MIA
-
BCN
1 stop21h 45m
TAP AIR PORTUGAL
Mon 2/162:35 pm
BCN
-
MIA
1 stop30h 15m
TAP AIR PORTUGAL
Deal found 1/27$464
This Gotogate deal was found by Cheapflights users on 1/28. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/314:30 pm
MIA
-
BCN
1 stop27h 00m
TAP AIR PORTUGAL
Wed 4/810:40 pm
BCN
-
MIA
1 stop21h 50m
TAP AIR PORTUGAL
Deal found 1/28$466

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 January 29, 2026.

Round-trip from

$435
(Ticket)

One-way from

$249
(Kiwi.com)

Popular in

June

Cheapest in

February

Average price

$548
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 ($230 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 January 2026
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 January 29, 2026.
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

Wed 4/8

11:23 am-9:00 am

2 stops15h 37m

Barcelona-El Prat

Sat 4/18

11:00 am-12:54 am

1 stop19h 54m

$491

MiamiBarcelona

MIA - BCN

MIABCN

Miami

Wed 3/11

10:20 pm-6:10 pm

1 stop14h 50m

Barcelona-El Prat

Fri 5/1

1:45 pm-7:45 pm

1 stop12h 00m

$575

MiamiBarcelona

MIA - BCN

MIABCN

Miami

Sun 2/22

4:05 pm-7:05 am

Nonstop9h 00m

Barcelona-El Prat

Sun 3/8

3:05 pm-9:00 pm

Nonstop10h 55m

$585

MiamiBarcelona

MIA - BCN

MIABCN

Miami

Sat 5/9

9:30 pm-8:55 am

1 stop29h 25m

Barcelona-El Prat

Tue 6/2

8:30 pm-6:45 pm

1 stop28h 15m

$610

MiamiBarcelona

MIA - BCN

MIABCN

Miami

Tue 3/10

5:40 pm-2:00 pm

2 stops15h 20m

Barcelona-El Prat

Wed 3/25

6:00 am-11:24 pm

2 stops22h 24m

$611

MiamiBarcelona

MIA - BCN

MIABCN

Miami

Wed 4/22

12:24 pm-10:25 pm

2 stops28h 01m

Barcelona-El Prat

Sun 5/3

12:15 pm-1:13 pm

2 stops30h 58m

$634

MiamiBarcelona

MIA - BCN

MIABCN

Miami

Fri 4/17

9:30 pm-8:55 am

1 stop29h 25m

Barcelona-El Prat

Tue 4/21

10:00 pm-6:45 pm

2 stops26h 45m

$634

MiamiBarcelona

MIA - BCN

MIABCN

Miami

Fri 5/8

9:30 pm-8:55 am

1 stop29h 25m

Barcelona-El Prat

Tue 5/12

10:00 pm-6:45 pm

2 stops26h 45m

$643

MiamiBarcelona

MIA - BCN

MIABCN

Miami

Mon 3/9

10:45 pm-4:35 pm

1 stop12h 50m

Barcelona-El Prat

Fri 4/3

10:00 pm-6:45 pm

2 stops26h 45m

$666

MiamiBarcelona

MIA - BCN

MIABCN

Miami

Sat 5/9

10:40 pm-5:35 pm

1 stop12h 55m

Barcelona-El Prat

Fri 6/5

3:30 pm-8:00 pm

Nonstop10h 30m

$674

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/28

Showing 1-10 of 22 results
1
2
3

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 January 23, 2026.

Booking 21 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 January 29, 2026.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Key Largo to Barcelona-El Prat Airport as you normally would.

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 January 29, 2026.
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
11,206 reviews

Overall

7.2

Entertainment

6.9

Food

6.4

Crew

8.0

Boarding

7.5

Comfort

7.2

Reviews

1 / 20
4.0
Okay

Susie,Jan 2026

TPA - CLT

I was sitting at the back of the plane and the flight attendants were so loud, talking to each other and laughing! I thought they were having a party back there.
American Airlines
7.2
Good
11,206 reviews
American Airlines
7.2
Good
11,206 reviews

Overall

7.2

Entertainment

6.9

Food

6.4

Crew

8.0

Boarding

7.5

Comfort

7.2

Reviews

1 / 20
4.0
Okay

Susie,Jan 2026

TPA - CLT

I was sitting at the back of the plane and the flight attendants were so loud, talking to each other and laughing! I thought they were having a party back there.
TAP AIR PORTUGAL
7.1
Good
2,130 reviews
American Airlines
7.2
Good
11,206 reviews

Overall

7.2

Entertainment

6.9

Food

6.4

Crew

8.0

Boarding

7.5

Comfort

7.2

Reviews

1 / 20
4.0
Okay

Susie,Jan 2026

TPA - CLT

I was sitting at the back of the plane and the flight attendants were so loud, talking to each other and laughing! I thought they were having a party back there.
Iberia
7.0
Good
3,099 reviews
American Airlines
7.2
Good
11,206 reviews

Overall

7.2

Entertainment

6.9

Food

6.4

Crew

8.0

Boarding

7.5

Comfort

7.2

Reviews

1 / 20
4.0
Okay

Susie,Jan 2026

TPA - CLT

I was sitting at the back of the plane and the flight attendants were so loud, talking to each other and laughing! I thought they were having a party back there.
British Airways
6.7
Okay
7,705 reviews
American Airlines
7.2
Good
11,206 reviews

Overall

7.2

Entertainment

6.9

Food

6.4

Crew

8.0

Boarding

7.5

Comfort

7.2

Reviews

1 / 20
4.0
Okay

Susie,Jan 2026

TPA - CLT

I was sitting at the back of the plane and the flight attendants were so loud, talking to each other and laughing! I thought they were having a party back there.

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?

    Delta, Royal Air Maroc, and Air Europa can get you from Key Largo to Barcelona-El Prat Airport in just under 14h 50m. Your travel time can differ by up to 14h 35m. 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 LEVEL, with whom users have recently found tickets for as low as $204. However, be on the lookout for offers from LEVEL and Iberia, 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 (80%), American Airlines (76%), Iberia (76%).

  • 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 $274. On average you can expect to pay $1,594. The most popular route, (Miami - Barcelona-El Prat), can usually be booked for $371.

  • 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 January 29, 2026.
AirlineCheapestAverageFlexibilityOn-time
Royal Air MarocCheapest$330Average$596FlexibilityNo cancel feeOn-time75%
DeltaCheapest$334Average$832FlexibilityNo cancel feeOn-timeN/A
LEVELCheapest$341Average$599FlexibilityNo cancel feeOn-timeN/A
VuelingCheapest$374Average$657FlexibilityNo cancel feeOn-time88%
Scandinavian AirlinesCheapest$385Average$512FlexibilityNo cancel feeOn-time77%
TAP AIR PORTUGALCheapest$394Average$608FlexibilityNo cancel feeOn-timeN/A
Air EuropaCheapest$409Average$650FlexibilityNo cancel feeOn-time83%
LEVELCheapest$428Average$689FlexibilityNo cancel feeOn-timeN/A
IberiaCheapest$438Average$696FlexibilityNo cancel feeOn-time77%
United AirlinesCheapest$476Average$763FlexibilityNo cancel feeOn-time69%

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