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Belfast Intl

$2,285+ Cheap flights from Key Largo, FL to Belfast Intl (BFS)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/2. Fares are subject to change and may not be available on all flights or dates of travel.
MIA — BFS
Jan 17 — Jan 241
Sat 1/17
Sat 1/24
1 adult, Economy
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Cheap flight deals from Key Largo to Belfast Intl

Best flights from Key Largo to Belfast Intl
Discover carefully curated flight deals from Key Largo to Belfast Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 18, 2025.

This Booking.com deal was found by Cheapflights users on 12/17. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/24:35 pmMIA - BFS
2 stops17h 35mMultiple Airlines
Tue 1/66:30 amBFS - MIA
2 stops20h 59mMultiple Airlines
Deal found 12/17$2,285

Find flight deals from Key Largo to Belfast Intl

Keep the following information in mind while searching for Key Largo to Belfast Intl flight deals. Data was last updated December 18, 2025.

Round-trip from

$2,285
(Booking.com)
From Key Largo to Belfast Intl
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Key Largo to Belfast Intl 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 December 18, 2025.
Use the filters below to find and compare flights from Key Largo to Belfast Intl Airport that are best for you.

Fly from

Key Largo

Fly to

Belfast Intl

Route

Depart

Return

Price

MiamiBelfast

MIA - BFS

MIABFS

Miami

Fri 1/2

4:35 pm-3:10 pm

2 stops17h 35m

Belfast Intl

Tue 1/6

6:30 am-10:29 pm

2 stops20h 59m

$2,285

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/17

Best time to book a flight from Key Largo to Belfast Intl

Have a flexible travel schedule? Discover the best time to fly to Belfast Intl 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 Belfast Intl Airport

What is the cheapest time of day to fly from KE9 to BFS?

Find hourly flight availability from Key Largo to Belfast Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 18, 2025.

It’s optimal to fly from Key Largo to Belfast Intl Airport in the afternoon. By choosing this option you can save up to 39% on the cost of your flight, compared to a flight in the morning.

Reviews of airlines servicing Belfast Intl

Get insights into the airlines that provide service to Belfast Intl. 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 Belfast Intl. Reviews last updated December 18, 2025.
Get a feel of what it's like to fly with British Airways from Key Largo to Belfast Intl Airport by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
British Airways
6.7
Okay
7,585 reviews

Comfort

6.7

Entertainment

6.4

Boarding

6.9

Crew

7.6

Overall

6.7

Food

6.4

Reviews

1 / 20
8.0
Excellent

Lakshmi,Dec 2025

SFO - LHR

I had a great time on the flight with good entertainment and food. The staff was awesome. The only thing was there was a delay in boarding and takeoff from London. However, I was pleasantly surprised when the airline sent an apology for the few later landing in Mumbai. They did not have WiFi on board on the leg from London to Mumbai but that was okay for me. On the first leg from SF to London, a couple of seats ahead of me had issues with their display so they could not watch anything on their screens although the stewardess gas be them an option to use the WiFi on their devices. This did not affect me, however, so that was cool. I would recommend British Airways. This was my first time flying with them and I had a lovely flight.
British Airways
6.7
Okay
7,585 reviews
British Airways
6.7
Okay
7,585 reviews

Comfort

6.7

Entertainment

6.4

Boarding

6.9

Crew

7.6

Overall

6.7

Food

6.4

Reviews

1 / 20
8.0
Excellent

Lakshmi,Dec 2025

SFO - LHR

I had a great time on the flight with good entertainment and food. The staff was awesome. The only thing was there was a delay in boarding and takeoff from London. However, I was pleasantly surprised when the airline sent an apology for the few later landing in Mumbai. They did not have WiFi on board on the leg from London to Mumbai but that was okay for me. On the first leg from SF to London, a couple of seats ahead of me had issues with their display so they could not watch anything on their screens although the stewardess gas be them an option to use the WiFi on their devices. This did not affect me, however, so that was cool. I would recommend British Airways. This was my first time flying with them and I had a lovely flight.

Related info for your journey

Find useful and relevant information for your journey from Key Largo to Belfast Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Key Largo to Belfast Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

Browse thousands of different options on Cheapflights for your next trip

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Top airline flying from Key Largo to Belfast Intl

Discover the top airline that operate flights from Key Largo to Belfast Intl. 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 December 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
British AirwaysCheapest$667Average$803FlexibilityNo cancel feeOn-time70%

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