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$241+ Cheap flights from Key Largo, FL to Ireland

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 10/23. Fares are subject to change and may not be available on all flights or dates of travel.
MIA — DUB
Oct 16 — Oct 231
Thu 10/16
Thu 10/23
1 adult, Economy
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Cheap flight deals from Key Largo to Ireland

Keep the following information in mind while searching for Key Largo to Ireland flight deals. Data was last updated September 16, 2025.

Round-trip from

$357
(CrystalTravel)

One-way from

$241
(Kiwi.com)

Popular in

December

Cheapest in

February

Average price

$648
From Key Largo to Ireland
Search Deals
One-way flight from Key Largo to Ireland
Search Deals
Highest demand for flights based on searches. 3% potential increase in price ($26 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($19 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find flight deals from Key Largo to Ireland

Cheapest flights from Key Largo to Ireland
Explore the most affordable flight options available from Key Largo to Ireland. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 16, 2025.

This CrystalTravel deal was found by Cheapflights users on 9/15. 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.
Wed 10/295:40 pmMIA - DUB
1 stop14h 25mSWISS
Wed 11/56:35 pmDUB - MIA
1 stop25h 05mSWISS
Deal found 9/15$357
This United Airlines deal was found by Cheapflights users on 9/16. 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 11/125:51 pmMIA - DUB
1 stop11h 04mUnited Airlines
Wed 11/199:00 amDUB - MIA
2 stops19h 59mUnited Airlines
Deal found 9/16$358
This Delta deal was found by Cheapflights users on 9/16. 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 11/126:00 amMIA - DUB
1 stop20h 45mDelta
Wed 11/1911:30 amDUB - MIA
1 stop13h 10mDelta
Deal found 9/16$363
This FlightHub deal was found by Cheapflights users on 9/15. 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.
Sat 10/189:45 pmMIA - DUB
1 stop29h 30mMultiple Airlines
Mon 11/101:20 pmDUB - MIA
1 stop33h 10mMultiple Airlines
Deal found 9/15$364
This United Airlines deal was found by Cheapflights users on 9/16. 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 11/195:51 pmMIA - DUB
1 stop11h 04mUnited Airlines
Wed 11/2612:05 pmDUB - MIA
2 stops32h 39mUnited Airlines
Deal found 9/16$368
This Air Canada deal was found by Cheapflights users on 9/15. 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 11/188:00 amMIA - DUB
2 stops18h 10mMultiple Airlines
Tue 11/255:00 amDUB - MIA
2 stops22h 29mMultiple Airlines
Deal found 9/15$375
This United Airlines deal was found by Cheapflights users on 9/15. 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 10/294:50 pmMIA - DUB
1 stop13h 05mUnited Airlines
Wed 11/512:05 pmDUB - MIA
2 stops38h 53mUnited Airlines
Deal found 9/15$379
This Mytrip deal was found by Cheapflights users on 9/15. 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.
Sun 10/265:40 pmMIA - DUB
1 stop14h 50mMultiple Airlines
Sun 11/99:00 amDUB - MIA
1 stop31h 26mMultiple Airlines
Deal found 9/15$391
This Mytrip deal was found by Cheapflights users on 9/15. 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.
Fri 11/77:50 pmMIA - DUB
1 stop16h 55mMultiple Airlines
Fri 11/149:00 amDUB - MIA
1 stop31h 26mMultiple Airlines
Deal found 9/15$394
This Booking.com deal was found by Cheapflights users on 9/14. 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.
Thu 10/304:25 pmMIA - DUB
1 stop33h 45mMultiple Airlines
Thu 11/612:55 pmDUB - MIA
1 stop33h 35mMultiple Airlines
Deal found 9/14$395
This United deal was found by Cheapflights users on 9/15. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/711:09 amMIA - DUB
1 stop15h 21mMultiple Airlines
Wed 11/129:00 amDUB - MIA
1 stop31h 26mMultiple Airlines
Deal found 9/15$398
This Delta deal was found by Cheapflights users on 9/15. 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.
Thu 11/68:00 pmMIA - ORK
1 stop13h 45mDelta
Mon 11/1011:15 amORK - MIA
1 stop32h 35mDelta
Deal found 9/15$484

Cheapflights Fare Finder

 
Customize your flight search to find flights from Key Largo to Ireland 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 September 16, 2025.
Use the filters below to find and compare flights from Key Largo to Ireland that are best for you.

Fly from

Key Largo

Fly to

Ireland

Route

Depart

Return

Price

MiamiDublin

MIA - DUB

MIADUB

Miami

Wed 3/4

7:00 am-8:45 am

1 stop20h 45m

Dublin

Thu 3/26

11:30 am-11:31 pm

1 stop16h 01m

$363

MiamiDublin

MIA - DUB

MIADUB

Miami

Wed 3/4

6:11 pm-9:55 am

1 stop10h 44m

Dublin

Tue 3/24

1:35 pm-11:56 pm

1 stop14h 21m

$363

MiamiDublin

MIA - DUB

MIADUB

Miami

Tue 3/3

2:38 pm-7:30 am

1 stop11h 52m

Dublin

Tue 3/24

12:05 pm-8:21 pm

1 stop12h 16m

$363

MiamiDublin

MIA - DUB

MIADUB

Miami

Tue 3/3

8:05 am-7:45 am

1 stop18h 40m

Dublin

Thu 3/26

11:30 am-11:31 pm

1 stop16h 01m

$363

MiamiDublin

MIA - DUB

MIADUB

Miami

Mon 3/2

6:00 am-7:45 am

1 stop20h 45m

Dublin

Thu 3/26

11:30 am-11:31 pm

1 stop16h 01m

$363

MiamiDublin

MIA - DUB

MIADUB

Miami

Sun 3/1

6:00 am-7:45 am

1 stop20h 45m

Dublin

Tue 3/24

6:00 am-6:40 pm

1 stop16h 40m

$372

MiamiDublin

MIA - DUB

MIADUB

Miami

Mon 3/2

7:00 am-7:45 am

1 stop19h 45m

Dublin

Tue 3/24

6:00 am-6:40 pm

1 stop16h 40m

$372

MiamiDublin

MIA - DUB

MIADUB

Miami

Tue 3/3

3:35 pm-7:45 am

1 stop11h 10m

Dublin

Mon 3/23

1:25 pm-3:50 pm

1 stop30h 25m

$373

MiamiDublin

MIA - DUB

MIADUB

Miami

Wed 10/29

4:50 pm-9:55 am

1 stop13h 05m

Dublin

Wed 11/5

12:05 pm-9:58 pm

2 stops38h 53m

$379

MiamiCork

MIA - ORK

MIAORK

Miami

Thu 11/6

8:00 pm-2:45 pm

1 stop13h 45m

Cork

Mon 11/10

11:15 am-2:50 pm

1 stop32h 35m

$484

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/15

Showing 1-10 of 31 results
1
2
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Best time to book a flight from Key Largo to Ireland

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

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

Currently, November is the cheapest month in which you can book a flight from Key Largo to Ireland (average of $509). Flying from Key Largo to Ireland in June is currently the most expensive (average of $923). 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 IE?

Find hourly flight availability from Key Largo to Ireland. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 16, 2025.

When flying from Key Largo to Ireland, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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

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

Travelers seeking maximum savings on their Key Largo to Ireland flight should consider departing on Wednesday evenings when fares are most often at their lowest. Sunday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing Ireland

Get insights into the airlines that provide service to Ireland. 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 Ireland. Reviews last updated September 16, 2025.
Peruse reviews from past customers who have flown with Delta, United Airlines, and American Airlines from Key Largo to Ireland 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.
Delta
8.0
Very good
7,954 reviews

Comfort

7.9

Overall

8.0

Food

7.3

Entertainment

7.9

Boarding

8.2

Crew

8.5

Reviews

1 / 20
6.0
Good

pilar,May 2025

RSW - ATL

The stewardess was not very nice because I requested two glasses of water. She didn’t even offer the snacks to me. She seemed angry and I felt very bad about her reaction. Also, the flight was full and you could not move. The airline should provide seats for obese people in consideration to the rest pf the passengers.
Delta
8.0
Very good
7,954 reviews
Delta
8.0
Very good
7,954 reviews

Comfort

7.9

Overall

8.0

Food

7.3

Entertainment

7.9

Boarding

8.2

Crew

8.5

Reviews

1 / 20
6.0
Good

pilar,May 2025

RSW - ATL

The stewardess was not very nice because I requested two glasses of water. She didn’t even offer the snacks to me. She seemed angry and I felt very bad about her reaction. Also, the flight was full and you could not move. The airline should provide seats for obese people in consideration to the rest pf the passengers.
United Airlines
7.4
Good
8,929 reviews
Delta
8.0
Very good
7,954 reviews

Comfort

7.9

Overall

8.0

Food

7.3

Entertainment

7.9

Boarding

8.2

Crew

8.5

Reviews

1 / 20
6.0
Good

pilar,May 2025

RSW - ATL

The stewardess was not very nice because I requested two glasses of water. She didn’t even offer the snacks to me. She seemed angry and I felt very bad about her reaction. Also, the flight was full and you could not move. The airline should provide seats for obese people in consideration to the rest pf the passengers.
American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
7,954 reviews

Comfort

7.9

Overall

8.0

Food

7.3

Entertainment

7.9

Boarding

8.2

Crew

8.5

Reviews

1 / 20
6.0
Good

pilar,May 2025

RSW - ATL

The stewardess was not very nice because I requested two glasses of water. She didn’t even offer the snacks to me. She seemed angry and I felt very bad about her reaction. Also, the flight was full and you could not move. The airline should provide seats for obese people in consideration to the rest pf the passengers.
Aer Lingus
7.2
Good
1,270 reviews
Delta
8.0
Very good
7,954 reviews

Comfort

7.9

Overall

8.0

Food

7.3

Entertainment

7.9

Boarding

8.2

Crew

8.5

Reviews

1 / 20
6.0
Good

pilar,May 2025

RSW - ATL

The stewardess was not very nice because I requested two glasses of water. She didn’t even offer the snacks to me. She seemed angry and I felt very bad about her reaction. Also, the flight was full and you could not move. The airline should provide seats for obese people in consideration to the rest pf the passengers.
British Airways
6.7
Okay
7,361 reviews
Delta
8.0
Very good
7,954 reviews

Comfort

7.9

Overall

8.0

Food

7.3

Entertainment

7.9

Boarding

8.2

Crew

8.5

Reviews

1 / 20
6.0
Good

pilar,May 2025

RSW - ATL

The stewardess was not very nice because I requested two glasses of water. She didn’t even offer the snacks to me. She seemed angry and I felt very bad about her reaction. Also, the flight was full and you could not move. The airline should provide seats for obese people in consideration to the rest pf the passengers.

Related info for your journey

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

  • How popular is this Key Largo to Ireland flight route?

    This flight path from Key Largo to Ireland was viewed by 7 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • How long is the flight from Key Largo to Ireland?

    A quick flight from Key Largo to Ireland can take about 10h 44m. Delta provides one of the quickest options available for as low as $363. The distance between Key Largo and Ireland is about 4156 mi. This flight may include one or multiple stops.

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

    While some choose either Miami - Shannon or Miami - Cork, Miami - Dublin is the most popular route from Key Largo to Ireland.

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

    While on average a flight from Key Largo to Ireland is generally $598, our data shows the cheapest flight currently is $333. When looking at the most popular route, (Miami - Dublin), you can expect to pay $331 for that flight.

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

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

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

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

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

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

    Currently, November is the cheapest month in which you can book a flight from Key Largo to Ireland (average of $509). Flying from Key Largo to Ireland in June is currently the most expensive (average of $923). 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

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Alternative routes for Key Largo to Ireland

See prices for flight routes from nearby airports that may be better suited for you.
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Top 10 airlines flying from Key Largo to Ireland

Discover the top 10 airlines that operate flights from Key Largo to Ireland. 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 September 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
Scandinavian AirlinesCheapest$398Average$461FlexibilityNo cancel feeOn-time77%
Aer LingusCheapest$467Average$836FlexibilityNo cancel feeOn-timeN/A
JetBlueCheapest$482Average$732FlexibilityNo cancel feeOn-time62%
United AirlinesCheapest$483Average$812FlexibilityNo cancel feeOn-time69%
IberiaCheapest$487Average$764FlexibilityNo cancel feeOn-time77%
British AirwaysCheapest$495Average$804FlexibilityNo cancel feeOn-time70%
DeltaCheapest$513Average$858FlexibilityNo cancel feeOn-timeN/A
TAP AIR PORTUGALCheapest$518Average$740FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$535Average$880FlexibilityNo cancel feeOn-time71%
Air FranceCheapest$536Average$826FlexibilityNo cancel feeOn-time77%

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