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Keflavik Intl

$542+ Cheap flights from Louisville (SDF) 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 7/3. Fares are subject to change and may not be available on all flights or dates of travel.
SDF — KEF
may. 4 — may. 111
dom. 5/4
dom. 5/11
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 abril 29, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$692
(KLM)

One-way from

$542
(WestJet)
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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One-way flight from Louisville Intl to Reykjavik Keflavik Intl
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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 abril 29, 2025.

This KLM deal was found by Cheapflights users on 4/29. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 9/146:26 pmSDF - KEF
1 stop7h 54mKLM
mar. 9/238:45 amKEF - SDF
1 stop16h 56mKLM
Deal found 4/29$692
This United deal was found by Cheapflights users on 4/28. 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.
mar. 7/111:10 amSDF - KEF
1 stop15h 50mMultiple Airlines
dom. 7/69:30 amKEF - SDF
2 stops39h 29mMultiple Airlines
Deal found 4/28$891
This Lufthansa deal was found by Cheapflights users on 4/29. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 9/42:20 pmSDF - KEF
2 stops29h 15mLufthansa
dom. 9/712:25 amKEF - SDF
2 stops49h 59mLufthansa
Deal found 4/29$1,109
This United Airlines deal was found by Cheapflights users on 4/28. 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.
mar. 7/16:08 pmSDF - KEF
1 stop10h 22mUnited Airlines
dom. 7/612:00 pmKEF - SDF
1 stop14h 14mUnited Airlines
Deal found 4/28$1,235
This Air Canada deal was found by Cheapflights users on 4/29. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 7/12:10 pmSDF - KEF
3 stops14h 00mAir Canada
mié. 7/169:30 amKEF - SDF
3 stops16h 44mAir Canada
Deal found 4/29$1,248
This Delta deal was found by Cheapflights users on 4/29. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 5/187:50 amSDF - KEF
1 stop18h 30mDelta
vie. 5/238:50 amKEF - SDF
1 stop13h 39mDelta
Deal found 4/29$1,360

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 abril 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

dom. 9/14

6:26 pm-6:20 am

1 stop7h 54m

Reykjavik Keflavik Intl

mar. 9/23

8:45 am-9:41 pm

1 stop16h 56m

$692

LouisvilleReykjavik

SDF - KEF

SDFKEF

Louisville Intl

mar. 7/1

11:10 am-7:00 am

1 stop15h 50m

Reykjavik Keflavik Intl

dom. 7/6

9:30 am-8:59 pm

2 stops39h 29m

$891

LouisvilleReykjavik

SDF - KEF

SDFKEF

Louisville Intl

jue. 9/4

2:20 pm-11:35 pm

2 stops29h 15m

Reykjavik Keflavik Intl

dom. 9/7

12:25 am-10:24 pm

2 stops49h 59m

$1,109

LouisvilleReykjavik

SDF - KEF

SDFKEF

Louisville Intl

mar. 7/1

6:08 pm-8:30 am

1 stop10h 22m

Reykjavik Keflavik Intl

dom. 7/6

12:00 pm-10:14 pm

1 stop14h 14m

$1,235

LouisvilleReykjavik

SDF - KEF

SDFKEF

Louisville Intl

mar. 7/1

2:10 pm-8:10 am

3 stops14h 00m

Reykjavik Keflavik Intl

mié. 7/16

9:30 am-10:14 pm

3 stops16h 44m

$1,248

LouisvilleReykjavik

SDF - KEF

SDFKEF

Louisville Intl

dom. 5/18

7:50 am-6:20 am

1 stop18h 30m

Reykjavik Keflavik Intl

vie. 5/23

8:50 am-6:29 pm

1 stop13h 39m

$1,360

LouisvilleReykjavik

SDF - KEF

SDFKEF

Louisville Intl

jue. 7/3

5:37 pm-8:15 am

2 stops34h 38m

$542

LouisvilleReykjavik

SDF - KEF

SDFKEF

Louisville Intl

jue. 7/3

8:40 am-8:30 am

1 stop19h 50m

$810

LouisvilleReykjavik

SDF - KEF

SDFKEF

Louisville Intl

jue. 7/3

12:48 pm-8:10 am

3 stops15h 22m

$816

LouisvilleReykjavik

SDF - KEF

SDFKEF

Louisville Intl

dom. 8/17

10:00 am-11:35 pm

2 stops33h 35m

$1,441

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/29

Showing 1-10 of 11 results
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2

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 April.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*2 stars
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 FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Louisville-Reykjavik Keflavik Intl Airport flight deals on Cheapflights vs. FlightHub >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

Rainfall in Keflavik Intl by month

Plan your trip to Keflavik Intl by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Reykjavik Keflavik Intl Airport ranges from 1.6 - 3.1 inches per month. January is typically the wettest month, when rainfall can reach 3.1 in. May is typically the driest time to visit Reykjavik Keflavik Intl Airport when rainfall is around 1.6 in.

Temperature in Keflavik Intl by month

Plan your trip to Keflavik Intl by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Reykjavik Keflavik Intl Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 51.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 32.0 F).

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 abril 29, 2025.
Delta
8.0
Very good
7,929 reviews

Boarding

8.2

Crew

8.5

Entertainment

7.9

Overall

8.0

Food

7.3

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
8.0
Very good
7,929 reviews
Delta
8.0
Very good
7,929 reviews

Boarding

8.2

Crew

8.5

Entertainment

7.9

Overall

8.0

Food

7.3

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
KLM
7.8
Good
1,334 reviews
Delta
8.0
Very good
7,929 reviews

Boarding

8.2

Crew

8.5

Entertainment

7.9

Overall

8.0

Food

7.3

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
United Airlines
7.4
Good
8,696 reviews
Delta
8.0
Very good
7,929 reviews

Boarding

8.2

Crew

8.5

Entertainment

7.9

Overall

8.0

Food

7.3

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
WestJet
7.2
Good
2,823 reviews
Delta
8.0
Very good
7,929 reviews

Boarding

8.2

Crew

8.5

Entertainment

7.9

Overall

8.0

Food

7.3

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Air Canada
7.0
Good
9,244 reviews
Delta
8.0
Very good
7,929 reviews

Boarding

8.2

Crew

8.5

Entertainment

7.9

Overall

8.0

Food

7.3

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

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 2 different airlines.

  • What are the cheapest airlines flying from Louisville to Reykjavik Keflavik Intl Airport round-trip?

    According to our current data, KLM ($692), Lufthansa ($1,109), and United Airlines ($1,235) offers the cheapest pricing from Louisville to Reykjavik Keflavik Intl Airport.

  • What are the cheapest airlines to fly from Louisville to Reykjavik Keflavik Intl Airport one-way?

    The cheapest airline one-way is WestJet, with whom users have recently found tickets for as low as $542. However, be on the lookout for offers from United Airlines and Air Canada, as they are both options that can get you from Louisville to Reykjavik Keflavik Intl Airport for a low price.

  • 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, November is the cheapest month in which you can book a flight from Louisville to Reykjavik Keflavik Intl Airport (average of $328). Flying from Louisville to Reykjavik Keflavik Intl Airport in July is currently the most expensive (average of $651). 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.

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Alternative routes for Louisville to Keflavik Intl

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Top 2 airlines flying from Louisville to Keflavik Intl

Discover the top 2 airlines that operate flights from Louisville 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 abril 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$576Average$826FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$590Average$805FlexibilityNo cancel feeOn-time69%

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