HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Keflavik Intl

$374+ Cheap flights from Key Largo, FL to Keflavik Intl (KEF)

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 2/19. Fares are subject to change and may not be available on all flights or dates of travel.
MIA — KEF
Jan 22 — Jan 291
Thu 1/22
Thu 1/29
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Key Largo to Keflavik Intl with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Key Largo to Keflavik Intl

Cheapest flights from Key Largo to Keflavik Intl
Explore the most affordable flight options available from Key Largo to Keflavik Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 23, 2025.

This Trip.com deal was found by Cheapflights users on 12/21. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/245:15 pmMIA - KEF
Nonstop7h 40mMultiple Airlines
Sun 12/284:45 pmKEF - MIA
2 stops33h 24mMultiple Airlines
Deal found 12/21$1,126
This Icelandair deal was found by Cheapflights users on 12/21. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/215:15 pmMIA - KEF
Nonstop7h 40mIcelandair
Thu 12/255:15 pmKEF - MIA
Nonstop8h 40mIcelandair
Deal found 12/21$1,166
This Icelandair deal was found by Cheapflights users on 12/21. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/226:35 pmMIA - KEF
1 stop30h 40mMultiple Airlines
Mon 12/295:00 pmKEF - MIA
1 stop25h 09mMultiple Airlines
Deal found 12/21$1,257
This Kiwi.com deal was found by Cheapflights users on 12/22. 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.
Tue 12/233:08 pmMIA - KEF
1 stop10h 32mMultiple Airlines
Mon 12/294:45 pmKEF - MIA
1 stop32h 44mMultiple Airlines
Deal found 12/22$1,260
This Icelandair deal was found by Cheapflights users on 12/21. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/217:50 pmMIA - KEF
1 stop29h 45mMultiple Airlines
Thu 12/255:15 pmKEF - MIA
Nonstop8h 40mMultiple Airlines
Deal found 12/21$1,267
This Kiwi.com deal was found by Cheapflights users on 12/21. 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.
Thu 12/256:45 pmMIA - KEF
2 stops24h 30mMultiple Airlines
Sat 12/275:00 pmKEF - MIA
1 stop24h 20mMultiple Airlines
Deal found 12/21$1,274

Find flight deals from Key Largo to Keflavik Intl

Keep the following information in mind while searching for Key Largo to Keflavik Intl flight deals. Data was last updated December 23, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$438
(eDestinos)

One-way from

$374
(Kiwi.com)

Popular in

July

Cheapest in

January

Average price

$793
Provider with most accurate pricing for Miami-Reykjavik (REK) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Miami-Reykjavik (REK) flights.
Search Deals
From Key Largo to Reykjavik Keflavik Intl
Search Deals
One-way flight from Key Largo to Reykjavik Keflavik Intl
Search Deals
Highest demand for flights based on searches. 22% potential increase in price ($231 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($28 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Key Largo to Keflavik 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 23, 2025.
Use the filters below to find and compare flights from Key Largo to Reykjavik Keflavik Intl Airport that are best for you.

Fly from

Key Largo

Fly to

Keflavik Intl

Route

Depart

Return

Price

MiamiReykjavik

MIA - KEF

MIAKEF

Miami

Wed 3/4

5:15 pm-5:55 am

Nonstop7h 40m

Reykjavik Keflavik Intl

Tue 3/17

5:15 pm-9:55 pm

Nonstop8h 40m

$648

MiamiReykjavik

MIA - KEF

MIAKEF

Miami

Fri 2/13

5:15 pm-5:55 am

Nonstop7h 40m

Reykjavik Keflavik Intl

Tue 2/17

5:15 pm-8:55 pm

Nonstop8h 40m

$687

MiamiReykjavik

MIA - KEF

MIAKEF

Miami

Wed 3/18

7:40 am-10:45 am

2 stops23h 05m

Reykjavik Keflavik Intl

Tue 3/24

5:35 pm-7:05 pm

1 stop29h 30m

$691

MiamiReykjavik

MIA - KEF

MIAKEF

Miami

Fri 3/6

8:40 pm-3:25 pm

1 stop13h 45m

Reykjavik Keflavik Intl

Tue 3/10

5:35 pm-7:35 pm

1 stop30h 00m

$726

MiamiReykjavik

MIA - KEF

MIAKEF

Miami

Fri 1/23

8:40 pm-10:30 am

2 stops32h 50m

Reykjavik Keflavik Intl

Tue 1/27

7:35 am-11:51 pm

2 stops21h 16m

$757

MiamiReykjavik

MIA - KEF

MIAKEF

Miami

Thu 3/19

7:40 am-10:45 am

2 stops23h 05m

Reykjavik Keflavik Intl

Thu 3/26

11:30 am-7:05 pm

2 stops35h 35m

$761

MiamiReykjavik

MIA - KEF

MIAKEF

Miami

Sun 1/18

5:15 pm-5:55 am

Nonstop7h 40m

Reykjavik Keflavik Intl

Sat 1/24

5:00 pm-5:10 pm

1 stop29h 10m

$770

MiamiReykjavik

MIA - KEF

MIAKEF

Miami

Fri 1/23

7:15 am-6:30 am

1 stop18h 15m

Reykjavik Keflavik Intl

Tue 1/27

5:15 pm-8:55 pm

Nonstop8h 40m

$770

MiamiReykjavik

MIA - KEF

MIAKEF

Miami

Fri 1/30

7:15 am-6:30 am

1 stop18h 15m

Reykjavik Keflavik Intl

Tue 2/3

5:15 pm-8:55 pm

Nonstop8h 40m

$770

MiamiReykjavik

MIA - KEF

MIAKEF

Miami

Sat 1/17

7:40 am-3:25 pm

2 stops26h 45m

Reykjavik Keflavik Intl

Tue 1/20

11:30 am-6:35 pm

1 stop36h 05m

$771

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/22

Showing 1-10 of 17 results
1
2

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

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

What is the cheapest month to book a flight from Key Largo to Reykjavik Keflavik Intl Airport?

Currently, November is the cheapest month in which you can book a flight from Key Largo to Reykjavik Keflavik Intl Airport (average of $399). Flying from Key Largo to Reykjavik Keflavik Intl Airport in July is currently the most expensive (average of $792). 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 KEF?

Find hourly flight availability from Key Largo to Keflavik 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 23, 2025.

One of the essential ways to save on airfare from Key Largo to Reykjavik Keflavik Intl Airport is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the afternoon could potentially save you up to 23% on airfare.

What is the cheapest day to fly from Key Largo to Reykjavik Keflavik Intl Airport?

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

Travelers seeking maximum savings on their Key Largo to Reykjavik Keflavik Intl Airport flight should consider departing on Saturday afternoons when fares are most often at their lowest. Monday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Reviews of airlines servicing Keflavik Intl

Get insights into the airlines that provide service to Keflavik 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 Keflavik Intl. Reviews last updated December 23, 2025.
Get a feel of what it's like to fly with Delta, KLM, and Scandinavian Airlines from Key Largo to Reykjavik Keflavik 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.
Delta
7.9
Good
8,014 reviews

Food

7.3

Entertainment

7.9

Boarding

8.1

Overall

7.9

Crew

8.5

Comfort

7.9

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
7.9
Good
8,014 reviews
Delta
7.9
Good
8,014 reviews

Food

7.3

Entertainment

7.9

Boarding

8.1

Overall

7.9

Crew

8.5

Comfort

7.9

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.
KLM
7.7
Good
1,434 reviews
Delta
7.9
Good
8,014 reviews

Food

7.3

Entertainment

7.9

Boarding

8.1

Overall

7.9

Crew

8.5

Comfort

7.9

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.
Scandinavian Airlines
7.4
Good
1,620 reviews
Delta
7.9
Good
8,014 reviews

Food

7.3

Entertainment

7.9

Boarding

8.1

Overall

7.9

Crew

8.5

Comfort

7.9

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
9,106 reviews
Delta
7.9
Good
8,014 reviews

Food

7.3

Entertainment

7.9

Boarding

8.1

Overall

7.9

Crew

8.5

Comfort

7.9

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.
Icelandair
7.0
Good
592 reviews
Delta
7.9
Good
8,014 reviews

Food

7.3

Entertainment

7.9

Boarding

8.1

Overall

7.9

Crew

8.5

Comfort

7.9

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 Keflavik Intl. 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 Reykjavik Keflavik Intl Airport?

    There are many flights that can get you from Key Largo to Reykjavik Keflavik Intl Airport in 7h 40m. Fly via Icelandair or Scandinavian Airlines to get the fastest option. The distance between Key Largo and Reykjavik Keflavik Intl Airport is about 3657 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest flights from Key Largo to Reykjavik Keflavik Intl Airport?

    On average you can expect to pay $1,119 for a flight from Key Largo to Reykjavik Keflavik Intl Airport. The cheapest flight overall is $210 while the most popular route, (Miami - Reykjavik Keflavik Intl) is currently priced at $438.

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

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

  • How can I find direct flights from Key Largo to Keflavik 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 Keflavik Intl.

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

    Yes. Cheapflights offers flight deals from Key Largo to Keflavik 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.

  • What is the cheapest month to book a flight from Key Largo to Reykjavik Keflavik Intl Airport?

    Currently, November is the cheapest month in which you can book a flight from Key Largo to Reykjavik Keflavik Intl Airport (average of $399). Flying from Key Largo to Reykjavik Keflavik Intl Airport in July is currently the most expensive (average of $792). 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

Traveling to a place near Reykjavik Keflavik Intl Airport?

Book flights to Reykjavik Keflavik Intl Airport if you plan to visit one of these locations
Keflavik
Hveragerdi

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 5 airlines flying from Key Largo to Keflavik Intl

Discover the top 5 airlines that operate flights from Key Largo to Keflavik 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 23, 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$399Average$849FlexibilityNo cancel feeOn-time76%
DeltaCheapest$469Average$895FlexibilityNo cancel feeOn-timeN/A
KLMCheapest$486Average$922FlexibilityNo cancel feeOn-time75%
Scandinavian AirlinesCheapest$751Average$956FlexibilityNo cancel feeOn-time77%
United AirlinesCheapest$788Average$997FlexibilityNo cancel feeOn-time69%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.