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Keflavik Intl

$583+ 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 1/29. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — KEF
Nov 28 — Dec 51
Fri 11/28
Fri 12/5
1 adult, Economy
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Cheap 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 October 29, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$583
(United Airlines)

Popular in

December

Cheapest in

October

Average price

$790
Provider with most accurate pricing for Louisville Intl-Reykjavik Keflavik Intl flight deals.
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Provider most trusted by Cheapflights users for Louisville Intl-Reykjavik Keflavik Intl flights.
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From Louisville Intl to Reykjavik Keflavik Intl
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Highest demand for flights based on searches. 20% potential increase in price ($283 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($55 potential savings vs. average RT price).
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Average for round-trip flights in October 2025
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Find 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 October 29, 2025.

This Expedia deal was found by Cheapflights users on 10/26. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/132:35 pmSDF - KEF
2 stops42h 40mLufthansa
Tue 11/183:20 pmKEF - SDF
2 stops36h 09mLufthansa
Deal found 10/26$861
This Ovago deal was found by Cheapflights users on 10/26. 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.
Mon 11/242:00 pmSDF - KEF
2 stops39h 50mBritish Airways
Mon 12/111:50 amKEF - SDF
2 stops35h 18mBritish Airways
Deal found 10/26$932
This Expedia deal was found by Cheapflights users on 10/26. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/137:31 pmSDF - KEF
2 stops58h 09mBritish Airways
Mon 12/111:50 amKEF - SDF
2 stops41h 09mBritish Airways
Deal found 10/26$1,038
This Ovago deal was found by Cheapflights users on 10/26. 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.
Tue 11/184:18 pmSDF - KEF
2 stops37h 27mBritish Airways
Mon 12/111:50 amKEF - SDF
2 stops35h 18mBritish Airways
Deal found 10/26$1,217
This Mytrip deal was found by Cheapflights users on 10/26. 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.
Thu 11/137:11 pmSDF - KEF
3 stops29h 54mMultiple Airlines
Mon 12/15:00 pmKEF - SDF
3 stops29h 53mMultiple Airlines
Deal found 10/26$1,326
This Expedia deal was found by Cheapflights users on 10/29. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/86:16 pmSDF - KEF
2 stops48h 39mMultiple Airlines
Mon 12/154:20 pmKEF - SDF
2 stops34h 11mMultiple Airlines
Deal found 10/29$1,330
This Mytrip deal was found by Cheapflights users on 10/26. 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.
Tue 11/181:07 pmSDF - KEF
3 stops24h 53mMultiple Airlines
Mon 12/15:00 pmKEF - SDF
3 stops29h 53mMultiple Airlines
Deal found 10/26$1,342
This Mytrip deal was found by Cheapflights users on 10/26. 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.
Mon 11/249:23 amSDF - KEF
3 stops25h 07mMultiple Airlines
Mon 12/15:00 pmKEF - SDF
3 stops29h 53mMultiple Airlines
Deal found 10/26$1,489
This Mytrip deal was found by Cheapflights users on 10/26. 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.
Wed 11/1911:57 amSDF - KEF
3 stops20h 58mMultiple Airlines
Mon 12/15:00 pmKEF - SDF
3 stops29h 53mMultiple Airlines
Deal found 10/26$1,670

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 October 29, 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

Thu 1/29

11:10 am-2:20 pm

3 stops22h 10m

Reykjavik Keflavik Intl

Tue 2/3

3:20 pm-10:30 pm

2 stops36h 10m

$583

LouisvilleReykjavik

SDF - KEF

SDFKEF

Louisville Intl

Thu 11/13

2:35 pm-2:15 pm

2 stops42h 40m

Reykjavik Keflavik Intl

Tue 11/18

3:20 pm-10:29 pm

2 stops36h 09m

$861

LouisvilleReykjavik

SDF - KEF

SDFKEF

Louisville Intl

Mon 2/23

6:00 am-6:40 am

2 stops19h 40m

Reykjavik Keflavik Intl

Sat 2/28

4:45 pm-1:26 pm

1 stop25h 41m

$872

LouisvilleReykjavik

SDF - KEF

SDFKEF

Louisville Intl

Mon 2/23

5:45 pm-11:20 pm

2 stops24h 35m

Reykjavik Keflavik Intl

Sat 2/28

7:35 am-11:56 pm

2 stops21h 21m

$1,033

LouisvilleReykjavik

SDF - KEF

SDFKEF

Louisville Intl

Tue 11/18

4:18 pm-10:45 am

2 stops37h 27m

Reykjavik Keflavik Intl

Mon 12/1

11:50 am-6:08 pm

2 stops35h 18m

$1,217

LouisvilleReykjavik

SDF - KEF

SDFKEF

Louisville Intl

Thu 11/13

7:11 pm-6:05 am

3 stops29h 54m

Reykjavik Keflavik Intl

Mon 12/1

5:00 pm-5:53 pm

3 stops29h 53m

$1,326

LouisvilleReykjavik

SDF - KEF

SDFKEF

Louisville Intl

Mon 12/8

6:16 pm-11:55 pm

2 stops48h 39m

Reykjavik Keflavik Intl

Mon 12/15

4:20 pm-9:31 pm

2 stops34h 11m

$1,330

LouisvilleReykjavik

SDF - KEF

SDFKEF

Louisville Intl

Tue 11/18

1:07 pm-7:00 pm

3 stops24h 53m

Reykjavik Keflavik Intl

Mon 12/1

5:00 pm-5:53 pm

3 stops29h 53m

$1,342

LouisvilleReykjavik

SDF - KEF

SDFKEF

Louisville Intl

Mon 11/24

9:23 am-3:30 pm

3 stops25h 07m

Reykjavik Keflavik Intl

Mon 12/1

5:00 pm-5:53 pm

3 stops29h 53m

$1,489

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/28

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 October.
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.

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 24h 35m. The distance from Louisville to Reykjavik Keflavik Intl Airport is about 3084 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • 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.

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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