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$283+ 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 7/1. Fares are subject to change and may not be available on all flights or dates of travel.
MIA — BCN
Apr 22 — Apr 291
Tue 4/22
Tue 4/29
1 adult, Economy
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Cheapflights Tip: The best prices from Key Largo to Barcelona are usually found in January or February, booked 40 days in advance, depart on a Wednesday or Sunday and return on a Wednesday

Cheap 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 April 17, 2025.

Round-trip from

$594
(United Airlines)

One-way from

$283
(Connections by easyJet)

Popular in

June

Cheapest in

January

Average price

$701
From Key Largo to Barcelona
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One-way flight from Key Largo to Barcelona
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Highest demand for flights based on searches. 27% potential increase in price ($259 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($32 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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Find 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 April 17, 2025.

This Gurufare deal was found by Cheapflights users on 4/17. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/103:55 amMIA - BCN
1 stop11h 55mTAP AIR PORTUGAL
Sat 9/205:45 pmBCN - MIA
1 stop34h 25mTAP AIR PORTUGAL
Deal found 4/17$592
This oojo deal was found by Cheapflights users on 4/17. 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 11/149:20 pmMIA - BCN
1 stop14h 50mRoyal Air Maroc
Fri 11/2812:45 pmBCN - MIA
1 stop12h 35mRoyal Air Maroc
Deal found 4/17$594
This Kiwi.com deal was found by Cheapflights users on 4/16. 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.
Fri 5/95:15 pmMIA - BCN
1 stop24h 50mMultiple Airlines
Tue 5/139:35 pmBCN - MIA
2 stops22h 45mMultiple Airlines
Deal found 4/16$601
This Iberia deal was found by Cheapflights users on 4/16. 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.
Tue 9/94:35 pmMIA - BCN
Nonstop9h 00mIberia
Sat 9/203:40 pmBCN - MIA
Nonstop10h 20mIberia
Deal found 4/16$602
This Air Canada deal was found by Cheapflights users on 4/16. 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.
Tue 9/1611:55 amMIA - BCN
2 stops37h 55mAir Canada
Tue 9/3012:10 pmBCN - MIA
2 stops33h 02mAir Canada
Deal found 4/16$611
This FlightHub deal was found by Cheapflights users on 4/17. 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 8/129:30 pmMIA - BCN
1 stop13h 05mAir Europa
Wed 9/1711:50 amBCN - MIA
1 stop12h 55mAir Europa
Deal found 4/17$622
This Scandinavian Airlines deal was found by Cheapflights users on 4/17. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/77:45 pmMIA - BCN
2 stops34h 30mScandinavian Airlines
Fri 11/147:10 pmBCN - MIA
2 stops34h 03mScandinavian Airlines
Deal found 4/17$626
This British Airways deal was found by Cheapflights users on 4/17. 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 9/234:35 pmMIA - BCN
Nonstop9h 00mBritish Airways
Tue 10/712:50 pmBCN - MIA
1 stop13h 45mBritish Airways
Deal found 4/17$628
This Delta deal was found by Cheapflights users on 4/16. 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 9/1711:35 amMIA - BCN
1 stop12h 25mDelta
Wed 9/249:30 amBCN - MIA
2 stops17h 25mDelta
Deal found 4/16$637
This Kiwi.com deal was found by Cheapflights users on 4/17. 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.
Mon 8/47:30 pmMIA - BCN
1 stop14h 25mITA Airways
Thu 8/216:20 amBCN - MIA
1 stop15h 40mITA Airways
Deal found 4/17$660
This United Airlines deal was found by Cheapflights users on 4/16. 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.
Wed 9/248:00 amMIA - BCN
2 stops17h 50mUnited Airlines
Tue 9/3012:00 pmBCN - MIA
2 stops40h 42mUnited Airlines
Deal found 4/16$661
This Austrian Airlines deal was found by Cheapflights users on 4/16. 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 Austrian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/174:40 pmMIA - BCN
2 stops21h 10mAustrian Airlines
Mon 9/298:40 pmBCN - MIA
2 stops24h 00mAustrian Airlines
Deal found 4/16$720

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 April 17, 2025.
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 5/9

5:15 pm-12:05 am

1 stop24h 50m

Barcelona-El Prat

Tue 5/13

9:35 pm-2:20 pm

2 stops22h 45m

$601

MiamiBarcelona

MIA - BCN

MIABCN

Miami

Wed 5/7

9:45 pm-7:10 pm

1 stop15h 25m

Barcelona-El Prat

Tue 5/13

8:10 pm-7:45 pm

1 stop29h 35m

$610

MiamiBarcelona

MIA - BCN

MIABCN

Miami

Sun 5/11

12:35 am-1:30 am

1 stop18h 55m

Barcelona-El Prat

Tue 5/20

3:00 pm-2:45 pm

1 stop29h 45m

$617

MiamiBarcelona

MIA - BCN

MIABCN

Miami

Wed 5/7

7:15 am-10:50 am

2 stops21h 35m

Barcelona-El Prat

Tue 5/20

6:20 am-4:00 pm

1 stop15h 40m

$744

MiamiBarcelona

MIA - BCN

MIABCN

Miami

Tue 6/10

1:56 pm-9:05 am

1 stop13h 09m

Barcelona-El Prat

Fri 9/5

3:40 pm-8:00 pm

Nonstop10h 20m

$761

MiamiBarcelona

MIA - BCN

MIABCN

Miami

Tue 5/20

9:30 pm-4:35 pm

1 stop13h 05m

Barcelona-El Prat

Thu 6/5

3:30 pm-6:45 pm

2 stops33h 15m

$782

MiamiReus

MIA - REU

MIAREU

Miami

Sun 8/3

4:55 pm-8:05 am

2 stops33h 10m

Reus

Sat 8/23

10:15 am-4:50 pm

2 stops36h 35m

$1,878

MiamiBarcelona

MIA - BCN

MIABCN

Miami

Fri 5/9

5:15 pm-5:05 pm

1 stop17h 50m

$284

MiamiBarcelona

MIA - BCN

MIABCN

Miami

Mon 7/14

4:35 pm-10:35 am

1 stop12h 00m

$304

MiamiBarcelona

MIA - BCN

MIABCN

Miami

Wed 7/16

9:45 pm-1:10 pm

Nonstop9h 25m

$323

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/17

Showing 1-10 of 18 results
1
2

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 April 11, 2025.

Booking 40 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, January is the cheapest month in which you can book a flight from Key Largo to Barcelona (average of $523). Flying from Key Largo to Barcelona in June is currently the most expensive (average of $1,079). 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 April 17, 2025.

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.

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

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

Travelers seeking maximum savings on their Key Largo to Barcelona flight should consider departing on Wednesday mornings 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.

Weekly flight availability from Key Largo to Barcelona

Explore weekly flight availability from Key Largo to Barcelona. 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 April 17, 2025.

The most flights from KE9 to S37 are scheduled on a Wednesday (10 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (4 on average).

Rainfall in Barcelona by month

Plan your trip to Barcelona by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Barcelona ranges from 0.8 - 3.6 inches per month. October is typically the wettest month, when rainfall can reach 3.6 in. July is typically the driest time to visit Barcelona when rainfall is around 0.8 in.

Temperature in Barcelona by month

Plan your trip to Barcelona by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Barcelona, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 75.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 48.2 F).

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 April 17, 2025.
Read reviews from past customers who have flown Delta, Finnair and SWISS from Key Largo to Barcelona. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,916 reviews

Boarding

8.2

Comfort

7.9

Crew

8.5

Entertainment

7.9

Food

7.3

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Santiago,Apr 2024

MCO - ATL

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.
Delta
8.0
Very good
7,916 reviews
Delta
8.0
Very good
7,916 reviews

Boarding

8.2

Comfort

7.9

Crew

8.5

Entertainment

7.9

Food

7.3

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Santiago,Apr 2024

MCO - ATL

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.
Finnair
7.6
Good
1,269 reviews
Delta
8.0
Very good
7,916 reviews

Boarding

8.2

Comfort

7.9

Crew

8.5

Entertainment

7.9

Food

7.3

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Santiago,Apr 2024

MCO - ATL

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.
SWISS
7.5
Good
1,580 reviews
Delta
8.0
Very good
7,916 reviews

Boarding

8.2

Comfort

7.9

Crew

8.5

Entertainment

7.9

Food

7.3

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Santiago,Apr 2024

MCO - ATL

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.
United Airlines
7.4
Good
8,667 reviews
Delta
8.0
Very good
7,916 reviews

Boarding

8.2

Comfort

7.9

Crew

8.5

Entertainment

7.9

Food

7.3

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Santiago,Apr 2024

MCO - ATL

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.
Vueling
7.1
Good
1,151 reviews
Delta
8.0
Very good
7,916 reviews

Boarding

8.2

Comfort

7.9

Crew

8.5

Entertainment

7.9

Food

7.3

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Santiago,Apr 2024

MCO - ATL

When I was going to board, one of the staff members told me that I could not board with my passport bag because it was tree items and I would need to check a bag. This was so stupid ! The bag was small. So I had to put my things in my pockets, put the funny bag inside the other bag. Then go throw it. Then in the plane put everything back again in my funny bag.

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.

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

    To fly one-way, consider booking your trip with TAP AIR PORTUGAL, which is currently one of the cheapest options available, starting at $304. Air Europa flights start at $349 while deals on Vueling start at $373 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 Qatar Airways (92%), Vueling (92%) and American Airlines (85%).

  • 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 $1,833, our data indicates the cheapest price to be $248. The most popular route (Miami - Barcelona-El Prat), is priced around $422.

  • 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, January is the cheapest month in which you can book a flight from Key Largo to Barcelona (average of $523). Flying from Key Largo to Barcelona in June is currently the most expensive (average of $1,079). 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

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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 April 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
Turkish AirlinesCheapest$153Average$670FlexibilityNo cancel feeOn-time77%
LEVELCheapest$288Average$582FlexibilityNo cancel feeOn-timeN/A
Royal Air MarocCheapest$300Average$584FlexibilityNo cancel feeOn-time75%
VuelingCheapest$358Average$661FlexibilityNo cancel feeOn-time88%
TAP AIR PORTUGALCheapest$370Average$544FlexibilityNo cancel feeOn-timeN/A
IberiaCheapest$422Average$837FlexibilityNo cancel feeOn-time77%
ITA AirwaysCheapest$432Average$741FlexibilityNo cancel feeOn-time81%
British AirwaysCheapest$436Average$760FlexibilityNo cancel feeOn-time70%
FinnairCheapest$436Average$731FlexibilityNo cancel feeOn-time76%
Air CanadaCheapest$436Average$793FlexibilityNo cancel feeOn-time67%

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