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Cheap flights from Belfast to Key Largo from £587

This is the cheapest retur flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/1. Fares are subject to change and may not be available on all flights or dates of travel.
BHD — MIA
14 Nov — 21 Nov1
1 adult
1 adult, Economy

Find flight deals from Belfast to Key Largo

Enter your travel dates to find the best prices.

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

Fri 28/1107:00BFS - MIA
2 stops17h 20mMultiple Airlines
Fri 5/1216:35MIA - BFS
2 stops24h 25mMultiple Airlines
Deal found 14/10£693
Sun 26/1020:25BHD - MIA
2 stops42h 13mBritish Airways
Sat 1/1121:45MIA - BHD
2 stops32h 35mBritish Airways
Deal found 13/10£955
Thu 18/1209:05BHD - MIA
2 stops18h 05mAmerican Airlines
Thu 1/113:41MIA - BHD
2 stops15h 39mAmerican Airlines
Deal found 13/10£1,068
Thu 18/1209:05BHD - MIA
2 stops18h 05mBritish Airways
Thu 1/118:30MIA - BHD
1 stop17h 10mBritish Airways
Deal found 12/10£1,280

Cheap flight deals from Belfast to Key Largo

Keep the following information in mind while searching for Belfast to Key Largo flight deals. Data was last updated 15 October 2025.

Round-trip from

£533

Popular in

December

Cheapest in

November

Average price

£560
29/10-5/11
  • 29/10-5/11
  • 4 total stops
  • 63h 00m total
  • Belfast to Key Largo
Search Deals
Highest demand for flights based on searches. 0% potential increase in price (£3 potential increase over avg. return price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease (£25 potential savings vs. average return price).
Search Deals
Average for round-trip flights in October 2025
Search Deals

Cheapflights Fare Finder

 
Customise your flight search to find flights from Belfast to Key Largo 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 858,174 searches. Data last updated 15 October 2025.
Use the filters below to find and compare flights from Belfast to Key Largo that are best for you.

Fly from

Belfast

Fly to

Key Largo

Route

Depart

Return

Price

BelfastMiami

BHD - MIA

BHDMIA

Belfast City

Mon 5/1

19:25-16:15

1 stop25h 50m

Miami

Mon 19/1

17:10-14:15

1 stop16h 05m

£587

BelfastMiami

BHD - MIA

BHDMIA

Belfast City

Fri 6/3

08:45-17:15

1 stop13h 30m

Miami

Tue 10/3

23:00-14:50

1 stop11h 50m

£594

BelfastMiami

BHD - MIA

BHDMIA

Belfast City

Mon 5/1

09:15-22:15

2 stops18h 00m

Miami

Mon 19/1

18:45-16:05

2 stops16h 20m

£595

BelfastMiami

BFS - MIA

BFSMIA

Belfast Intl

Mon 5/1

20:55-18:55

2 stops27h 00m

Miami

Mon 19/1

16:40-20:10

3 stops22h 30m

£678

BelfastMiami

BFS - MIA

BFSMIA

Belfast Intl

Fri 28/11

07:00-19:20

2 stops17h 20m

Miami

Fri 5/12

16:35-22:00

2 stops24h 25m

£693

BelfastMiami

BHD - MIA

BHDMIA

Belfast City

Sun 26/10

20:25-10:38

2 stops42h 13m

Miami

Sat 1/11

21:45-10:20

2 stops32h 35m

£955

BelfastMiami

BHD - MIA

BHDMIA

Belfast City

Thu 18/12

09:05-22:10

2 stops18h 05m

Miami

Thu 1/1

13:41-10:20

2 stops15h 39m

£1,068

BelfastMiami

BHD - MIA

BHDMIA

Belfast City

Thu 18/12

09:05-22:10

2 stops18h 05m

Miami

Thu 1/1

18:30-16:40

1 stop17h 10m

£1,280

Flights are sorted by cheapest return flights first.

Deals found on 14/10

Best time to book a flight from Belfast to Key Largo

Have a flexible travel schedule? Discover the best time to fly to Key Largo from Belfast with our price prediction graph.
Estimated return 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 Belfast to Key Largo

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

Currently, March is the cheapest month in which you can book a flight from Belfast to Key Largo (average of £363). Flying from Belfast to Key Largo in August is currently the most expensive (average of £702). 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 BFS to KE9?

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

It’s typically best to fly out from Belfast to Key Largo at midday. Doing so could potentially save you 35% on the flight price compared to flying in the afternoon, which is usually more expensive.

Reviews of airlines servicing Key Largo

Get insights into the airlines that provide service to Key Largo. 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 Key Largo. Reviews last updated 15 October 2025.
Check out reviews from past customers who have flown with American Airlines and British Airways from Belfast to Key Largo 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.
American Airlines
7.2
Good
11,042 reviews
Check prices

Food

6.4

Overall

7.2

Boarding

7.5

Comfort

7.2

Crew

8.0

Entertainment

6.9

Reviews

1 / 20
2.0
Mediocre

Nordia,Sept 2025

KIN - MIA

We were to land in Miami sometime after 3pm but couldn’t due to bad weather, we flew around for 2 hrs until we had to land in Forth Myers to refuel, we had to sit another 2 hrs at Forth Myers until given the clearance to refuel, we were hungry, thirsty and frustrated at that point. All the had on the flight to offer was a small plastic glass of water and a pack of biscoff, I requested a cup of tea and was told none was there. We were basically at another airport and not one of the staff could consider that the passengers might be hungry or thirsty being on a plane for around 8 hrs, which you weren’t prepared for, at least find some hot water on board.
American Airlines
7.2
Good
11,042 reviews
American Airlines
7.2
Good
11,042 reviews
Check prices

Food

6.4

Overall

7.2

Boarding

7.5

Comfort

7.2

Crew

8.0

Entertainment

6.9

Reviews

1 / 20
2.0
Mediocre

Nordia,Sept 2025

KIN - MIA

We were to land in Miami sometime after 3pm but couldn’t due to bad weather, we flew around for 2 hrs until we had to land in Forth Myers to refuel, we had to sit another 2 hrs at Forth Myers until given the clearance to refuel, we were hungry, thirsty and frustrated at that point. All the had on the flight to offer was a small plastic glass of water and a pack of biscoff, I requested a cup of tea and was told none was there. We were basically at another airport and not one of the staff could consider that the passengers might be hungry or thirsty being on a plane for around 8 hrs, which you weren’t prepared for, at least find some hot water on board.
British Airways
6.7
Okay
7,456 reviews
American Airlines
7.2
Good
11,042 reviews
Check prices

Food

6.4

Overall

7.2

Boarding

7.5

Comfort

7.2

Crew

8.0

Entertainment

6.9

Reviews

1 / 20
2.0
Mediocre

Nordia,Sept 2025

KIN - MIA

We were to land in Miami sometime after 3pm but couldn’t due to bad weather, we flew around for 2 hrs until we had to land in Forth Myers to refuel, we had to sit another 2 hrs at Forth Myers until given the clearance to refuel, we were hungry, thirsty and frustrated at that point. All the had on the flight to offer was a small plastic glass of water and a pack of biscoff, I requested a cup of tea and was told none was there. We were basically at another airport and not one of the staff could consider that the passengers might be hungry or thirsty being on a plane for around 8 hrs, which you weren’t prepared for, at least find some hot water on board.

Related info for your journey

Find useful and relevant information for your journey from Belfast to Key Largo. 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 Belfast to Key Largo?

    A quick flight from Belfast to Key Largo can take about 13h 30m. American Airlines provides one of the quickest options available for as low as £594. There are 4166 mi between Belfast and Key Largo. This flight may include one or multiple stops.

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

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

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

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

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

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

    Currently, March is the cheapest month in which you can book a flight from Belfast to Key Largo (average of £363). Flying from Belfast to Key Largo in August is currently the most expensive (average of £702). 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 2 airlines flying from Belfast to Key Largo

Discover the top 2 airlines that operate flights from Belfast to Key Largo. 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 858,174 searches. Data last updated 15 October 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest£371Average£575FlexibilityNo cancel feeOn-time70%
Search British Airways flights
American AirlinesCheapest£420Average£659FlexibilityNo cancel feeOn-time71%
Search American Airlines flights

Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Belfast to Key Largo?

Cheapflights makes it easy to find Belfast to Key Largo flights by helping our users search from 900+ travel sites for deals. We also provide you with filters for cabin, price, airline, airports, number of stops, and many more to narrow down that perfect flight.

Why should you use Cheapflights to find cheap flight tickets from Belfast to Key Largo?

Cheapflights taps into our reliable network of hundreds of airlines and travel agencies to find the best deals for flights from Belfast to Key Largo for you. Better yet — we are completely free to use.

Can Cheapflights find flights from Belfast to Key Largo with no change fees?

Yes, we can. To see specific flights from Belfast to Key Largo with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from Belfast to Key Largo become cheaper?

Not ready to book yet? You can track prices for flights from Belfast to Key Largo on Cheapflights with our Price Alert feature and get notified when better prices are available.

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