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Keflavik Intl

$760+ Cheap flights from Louisville (SDF) to Keflavik Intl (KEF)

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 5/1. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — KEF
Jan 11 — Jan 181
Sun 1/11
Sun 1/18
1 adult, Economy
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Cheap flight deals from Louisville to Keflavik Intl

Cheapest flights from Louisville to Keflavik Intl
Explore the most affordable flight options available from Louisville to Keflavik Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 12, 2025.

This Mytrip deal was found by Cheapflights users on 12/11. 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.
Sat 12/205:05 amSDF - KEF
2 stops20h 35mMultiple Airlines
Wed 12/245:00 pmKEF - SDF
3 stops35h 59mMultiple Airlines
Deal found 12/11$2,783
This Ovago deal was found by Cheapflights users on 12/11. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/208:05 amSDF - KEF
2 stops28h 00mBritish Airways
Wed 12/2411:50 amKEF - SDF
2 stops58h 46mBritish Airways
Deal found 12/11$4,065

Find flight deals from Louisville to Keflavik Intl

Discover tips and strategies to find the most affordable flight options for your journey from Louisville (SDF) to Keflavik Intl (KEF). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated December 12, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$760
(KLM)

Popular in

January

Cheapest in

October
Provider with most accurate pricing for Louisville Intl-Reykjavik Keflavik Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Louisville Intl-Reykjavik Keflavik Intl flights.
Search Deals
From Louisville Intl to Reykjavik Keflavik Intl
Search Deals
Highest demand for flights based on searches. 17% potential increase in price ($228 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($41 potential savings vs. average RT price).
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Louisville 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 12, 2025.
Use the filters below to find and compare flights from Louisville to Reykjavik Keflavik Intl Airport that are best for you.

Fly from

Louisville

Fly to

Keflavik Intl

Route

Depart

Return

Price

LouisvilleReykjavik

SDF - KEF

SDFKEF

Louisville Intl

Fri 5/1

2:15 pm-9:30 am

2 stops15h 15m

Reykjavik Keflavik Intl

Fri 5/8

8:50 am-5:41 pm

1 stop12h 51m

$760

LouisvilleReykjavik

SDF - KEF

SDFKEF

Louisville Intl

Tue 5/12

4:00 pm-7:00 am

1 stop11h 00m

Reykjavik Keflavik Intl

Wed 5/20

9:30 am-3:44 pm

1 stop10h 14m

$760

LouisvilleReykjavik

SDF - KEF

SDFKEF

Louisville Intl

Wed 2/4

5:47 pm-3:30 pm

2 stops40h 43m

Reykjavik Keflavik Intl

Mon 2/9

4:20 pm-11:50 pm

2 stops36h 30m

$791

LouisvilleReykjavik

SDF - KEF

SDFKEF

Louisville Intl

Sat 1/10

5:45 pm-3:30 pm

2 stops40h 45m

Reykjavik Keflavik Intl

Sat 1/17

7:35 am-11:55 pm

2 stops45h 20m

$869

LouisvilleReykjavik

SDF - KEF

SDFKEF

Louisville Intl

Fri 4/17

5:45 pm-12:10 am

2 stops26h 25m

Reykjavik Keflavik Intl

Thu 4/23

1:15 am-4:51 pm

2 stops43h 36m

$944

LouisvilleReykjavik

SDF - KEF

SDFKEF

Louisville Intl

Mon 6/1

7:00 am-8:45 am

2 stops21h 45m

Reykjavik Keflavik Intl

Wed 6/10

9:15 am-4:49 pm

2 stops35h 34m

$962

LouisvilleReykjavik

SDF - KEF

SDFKEF

Louisville Intl

Fri 3/6

12:30 pm-3:25 pm

2 stops21h 55m

Reykjavik Keflavik Intl

Mon 3/9

7:35 am-10:34 pm

2 stops18h 59m

$966

LouisvilleReykjavik

SDF - KEF

SDFKEF

Louisville Intl

Sun 5/31

10:00 am-8:50 am

1 stop18h 50m

Reykjavik Keflavik Intl

Tue 6/9

11:30 am-7:34 pm

1 stop12h 04m

$975

LouisvilleReykjavik

SDF - KEF

SDFKEF

Louisville Intl

Sat 5/30

9:00 am-8:30 am

1 stop19h 30m

Reykjavik Keflavik Intl

Tue 6/9

12:00 pm-8:14 pm

1 stop12h 14m

$975

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/10

Compare providers for flights from Louisville to Keflavik Intl

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Louisville to Keflavik Intl in December.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Louisville-Reykjavik Keflavik Intl Airport flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Louisville-Reykjavik Keflavik Intl Airport flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Louisville-Reykjavik Keflavik Intl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Louisville-Reykjavik Keflavik Intl Airport flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Louisville-Reykjavik Keflavik Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Louisville to Keflavik Intl

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

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

Currently, March is the cheapest month in which you can book a flight from Louisville to Reykjavik Keflavik Intl Airport (average of $181). Flying from Louisville to Reykjavik Keflavik Intl Airport in November is currently the most expensive (average of $1,087). 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.

Related info for your journey

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

  • What airport do you fly from for flights from Louisville to Reykjavik Keflavik Intl?

    If you book a flight to Reykjavik Keflavik Intl from Louisville, you will be flying from Louisville Intl, which is the city’s only airport. Louisville Intl (SDF) is located 5.3 mi from the center of Louisville. There are 0 flights from Louisville Intl to Reykjavik Keflavik Intl per day from 0 different airlines.

  • How long is the flight from Louisville to Reykjavik Keflavik Intl Airport?

    Departing from Louisville to Reykjavik Keflavik Intl Airport will take you 11h. The distance from Louisville to Reykjavik Keflavik Intl Airport is about 3084 mi.

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

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

  • How can I find direct flights from Louisville to Keflavik Intl?

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

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

    Yes. Cheapflights offers flight deals from Louisville 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 Louisville to Reykjavik Keflavik Intl Airport?

    Currently, March is the cheapest month in which you can book a flight from Louisville to Reykjavik Keflavik Intl Airport (average of $181). Flying from Louisville to Reykjavik Keflavik Intl Airport in November is currently the most expensive (average of $1,087). 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

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