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$256+ Cheap flights from Key Largo, FL to Barcelona

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 4/27. Fares are subject to change and may not be available on all flights or dates of travel.
MIA — BCN
Mar 7 — Mar 141
Sat 3/7
Sat 3/14
1 adult, Economy
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Cheapflights Tip: The best prices from Key Largo to Barcelona 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

Cheapest flights from Key Largo to Barcelona
Explore the most affordable flight options available from Key Largo to Barcelona. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 5, 2026.

This oojo deal was found by Cheapflights users on 2/2. 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 2/178:40 pm
MIA
-
BCN
1 stop15h 25m
Scandinavian Airlines
Sun 2/227:10 pm
BCN
-
MIA
1 stop29h 25m
Scandinavian Airlines
Deal found 2/2$444
This eDestinos deal was found by Cheapflights users on 2/2. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/287:45 pm
MIA
-
BCN
1 stop21h 30m
ITA Airways
Tue 5/126:20 am
BCN
-
MIA
1 stop15h 40m
ITA Airways
Deal found 2/2$457
This Mytrip deal was found by Cheapflights users on 2/3. 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 2/186:02 am
MIA
-
BCN
2 stops21h 33m
Multiple Airlines
Tue 2/241:35 pm
BCN
-
MIA
2 stops16h 24m
Multiple Airlines
Deal found 2/3$458
This eDestinos deal was found by Cheapflights users on 2/2. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/99:45 pm
MIA
-
BCN
1 stop29h 10m
Air Europa
Fri 2/2711:50 am
BCN
-
MIA
1 stop13h 40m
Air Europa
Deal found 2/2$470
This oojo deal was found by Cheapflights users on 2/5. 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.
Sun 2/159:45 pm
MIA
-
BCN
1 stop12h 50m
Air Europa
Fri 2/2011:50 am
BCN
-
MIA
1 stop13h 40m
Air Europa
Deal found 2/5$471
This oojo deal was found by Cheapflights users on 2/1. 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 2/119:45 pm
MIA
-
BCN
1 stop12h 50m
Air Europa
Wed 2/1811:50 am
BCN
-
MIA
1 stop13h 40m
Air Europa
Deal found 2/1$472
This CrystalTravel deal was found by Cheapflights users on 2/1. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/311:15 pm
MIA
-
BCN
1 stop18h 00m
ITA Airways
Tue 3/1011:40 am
BCN
-
MIA
1 stop15h 15m
ITA Airways
Deal found 2/1$473
This oojo deal was found by Cheapflights users on 2/5. 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 2/259:45 pm
MIA
-
BCN
1 stop12h 50m
Air Europa
Wed 5/611:50 am
BCN
-
MIA
1 stop12h 55m
Air Europa
Deal found 2/5$474
This oojo deal was found by Cheapflights users on 2/2. 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 4/229:30 pm
MIA
-
BCN
1 stop13h 05m
Air Europa
Mon 4/2711:50 am
BCN
-
MIA
1 stop12h 55m
Air Europa
Deal found 2/2$475
This oojo deal was found by Cheapflights users on 2/2. 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 4/227:15 am
MIA
-
BCN
2 stops26h 40m
ITA Airways
Sun 5/36:20 am
BCN
-
MIA
1 stop14h 55m
ITA Airways
Deal found 2/2$476
This oojo deal was found by Cheapflights users on 2/2. 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 2/257:40 pm
MIA
-
BCN
1 stop14h 15m
ITA Airways
Sun 3/86:20 am
BCN
-
MIA
1 stop15h 35m
ITA Airways
Deal found 2/2$478
This FlightHub deal was found by Cheapflights users on 2/1. 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 2/109:45 pm
MIA
-
BCN
1 stop12h 50m
Air Europa
Thu 2/2611:50 am
BCN
-
MIA
1 stop13h 40m
Air Europa
Deal found 2/1$479

Find flight deals from Key Largo to Barcelona

Keep the following information in mind while searching for Key Largo to Barcelona flight deals. Data was last updated February 5, 2026.

Round-trip from

$444
(oojo)

One-way from

$256
(Kiwi.com)

Popular in

June

Cheapest in

February

Average price

$506
From Key Largo to Barcelona
Search Deals
One-way flight from Key Largo to Barcelona
Search Deals
Highest demand for flights based on searches. 24% potential increase in price ($232 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 February 2026
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Key Largo to Barcelona 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 February 5, 2026.
Use the filters below to find and compare flights from Key Largo to Barcelona that are best for you.

Fly from

Key Largo

Fly to

Barcelona

Route

Depart

Return

Price

MiamiBarcelona

MIA - BCN

MIABCN

Miami

Fri 7/31

8:00 am-3:55 pm

2 stops25h 55m

Barcelona-El Prat

Wed 8/26

6:20 am-7:47 am

2 stops31h 27m

$527

MiamiBarcelona

MIA - BCN

MIABCN

Miami

Mon 3/2

9:45 pm-4:35 pm

1 stop12h 50m

Barcelona-El Prat

Sat 3/7

8:30 pm-7:30 pm

1 stop29h 00m

$576

MiamiBarcelona

MIA - BCN

MIABCN

Miami

Tue 3/31

9:30 pm-8:55 am

1 stop29h 25m

Barcelona-El Prat

Sat 4/18

11:50 am-6:45 pm

1 stop12h 55m

$605

MiamiBarcelona

MIA - BCN

MIABCN

Miami

Mon 3/9

12:11 pm-9:00 am

2 stops15h 49m

Barcelona-El Prat

Mon 3/16

11:55 am-5:55 pm

1 stop35h 00m

$606

MiamiBarcelona

MIA - BCN

MIABCN

Miami

Sat 3/7

9:45 pm-8:55 am

1 stop29h 10m

Barcelona-El Prat

Wed 3/11

11:50 am-8:30 pm

1 stop13h 40m

$609

MiamiBarcelona

MIA - BCN

MIABCN

Miami

Sun 5/3

7:15 am-3:55 pm

2 stops26h 40m

Barcelona-El Prat

Tue 5/19

4:50 pm-4:00 pm

1 stop29h 10m

$616

MiamiBarcelona

MIA - BCN

MIABCN

Miami

Mon 6/1

9:30 pm-4:35 pm

1 stop13h 05m

Barcelona-El Prat

Mon 6/8

8:30 pm-6:45 pm

1 stop28h 15m

$621

MiamiBarcelona

MIA - BCN

MIABCN

Miami

Mon 8/3

8:00 am-3:55 pm

2 stops25h 55m

Barcelona-El Prat

Thu 8/27

6:20 am-7:47 am

2 stops31h 27m

$627

MiamiBarcelona

MIA - BCN

MIABCN

Miami

Wed 6/3

9:30 pm-4:35 pm

1 stop13h 05m

Barcelona-El Prat

Mon 6/8

8:30 pm-6:45 pm

1 stop28h 15m

$651

MiamiBarcelona

MIA - BCN

MIABCN

Miami

Fri 4/3

9:30 pm-4:35 pm

1 stop13h 05m

Barcelona-El Prat

Wed 4/15

8:30 pm-6:45 pm

1 stop28h 15m

$652

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/3

Showing 1-10 of 29 results
1
2
3

Best time to book a flight from Key Largo to Barcelona

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

How far ahead should I book a flight from Key Largo to Barcelona?

Use this chart to determine the optimal time to book a round-trip flight from Key Largo to Barcelona. Price data was last updated on January 30, 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. 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?

Currently, October is the cheapest month in which you can book a flight from Key Largo to Barcelona (average of $367). Flying from Key Largo to Barcelona 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. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated February 5, 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 as you normally would.

Reviews of airlines servicing Barcelona

Get insights into the airlines that provide service to Barcelona. 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. Reviews last updated February 5, 2026.
Get a feel of what it's like to fly with American Airlines, TAP AIR PORTUGAL, and Iberia from Key Largo to Barcelona by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
American Airlines
7.2
Good
11,232 reviews

Entertainment

6.9

Boarding

7.5

Comfort

7.2

Food

6.4

Crew

8.0

Overall

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
11,232 reviews
American Airlines
7.2
Good
11,232 reviews

Entertainment

6.9

Boarding

7.5

Comfort

7.2

Food

6.4

Crew

8.0

Overall

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
2,134 reviews
American Airlines
7.2
Good
11,232 reviews

Entertainment

6.9

Boarding

7.5

Comfort

7.2

Food

6.4

Crew

8.0

Overall

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
3,104 reviews
American Airlines
7.2
Good
11,232 reviews

Entertainment

6.9

Boarding

7.5

Comfort

7.2

Food

6.4

Crew

8.0

Overall

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
7,716 reviews
American Airlines
7.2
Good
11,232 reviews

Entertainment

6.9

Boarding

7.5

Comfort

7.2

Food

6.4

Crew

8.0

Overall

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. 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?

    There are many flights that can get you from Key Largo to Barcelona in 15h 25m. Fly via Scandinavian Airlines, ITA Airways, or Air Europa to get the fastest option. Key Largo and Barcelona are separated by a distance of 4685 mi. 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 one-way?

    To fly one-way, consider booking your trip with LEVEL, which is currently one of the cheapest options available, starting at $204. LEVEL flights start at $215 while deals on Iberia start at $221 one-way.

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

    Most travelers choose Miami - Barcelona-El Prat, Miami - Girona Costa Brava or Miami - Reus when deciding on the best route from Key Largo to Barcelona.

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

    The top 3 most reliable airlines when flying from Key Largo to Barcelona are LEVEL (87%), Qatar Airways (87%) and American Airlines (82%).

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

    Looking for the cheapest flight from Key Largo to Barcelona? While on average our users pay $1,582, our data indicates the cheapest price to be $244. The most popular route (Miami - Barcelona-El Prat), is priced around $441.

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

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

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

    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.

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

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

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

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

Discover the top 10 airlines that operate flights from Key Largo to Barcelona. 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 February 5, 2026.
AirlineCheapestAverageFlexibilityOn-time
Royal Air MarocCheapest$330Average$596FlexibilityNo cancel feeOn-time75%
DeltaCheapest$334Average$832FlexibilityNo cancel feeOn-timeN/A
LEVELCheapest$341Average$586FlexibilityNo cancel feeOn-timeN/A
IcelandairCheapest$365Average$797FlexibilityNo cancel feeOn-time76%
Scandinavian AirlinesCheapest$385Average$512FlexibilityNo cancel feeOn-time77%
Air EuropaCheapest$385Average$650FlexibilityNo cancel feeOn-time83%
TAP AIR PORTUGALCheapest$394Average$609FlexibilityNo cancel feeOn-timeN/A
VuelingCheapest$409Average$658FlexibilityNo cancel feeOn-time88%
LEVELCheapest$429Average$700FlexibilityNo cancel feeOn-timeN/A
IberiaCheapest$436Average$696FlexibilityNo cancel feeOn-time77%

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