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$86+ Cheap flights from Keflavik Intl (KEF) to Madrid, Spain (MAD)

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 2/12. Fares are subject to change and may not be available on all flights or dates of travel.
KEF — MAD
Jan 25 — Feb 11
Sun 1/25
Sun 2/1
1 adult, Economy
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Cheap flight deals from Keflavik Intl to Madrid

Best flights from Keflavik Intl to Madrid
Discover carefully curated flight deals from Keflavik Intl to Madrid that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 26, 2025.

This Kiwi.com deal was found by Cheapflights users on 12/24. 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.
Sat 1/173:10 pmKEF - MAD
1 stop7h 25mLufthansa
Sun 1/255:55 amMAD - KEF
1 stop9h 25mLufthansa
Deal found 12/24$183
This Kiwi.com deal was found by Cheapflights users on 12/24. 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.
Fri 1/97:40 pmKEF - MAD
1 stop12h 25mMultiple Airlines
Tue 1/134:05 pmMAD - KEF
1 stop19h 00mMultiple Airlines
Deal found 12/24$263
This Kiwi.com deal was found by Cheapflights users on 12/26. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/2312:15 amKEF - MAD
1 stop9h 05measyJet
Wed 5/2711:15 pmMAD - KEF
1 stop10h 45measyJet
Deal found 12/26$315
This FlightHub deal was found by Cheapflights users on 12/24. 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.
Fri 2/271:15 amKEF - MAD
2 stops21h 20mAustrian Airlines
Fri 3/66:00 amMAD - KEF
2 stops19h 25mAustrian Airlines
Deal found 12/24$316
This KLM deal was found by Cheapflights users on 12/25. 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.
Sat 1/178:05 pmKEF - MAD
1 stop15h 05mKLM
Sun 1/258:30 pmMAD - KEF
1 stop23h 35mKLM
Deal found 12/25$332
This Kiwi.com deal was found by Cheapflights users on 12/26. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/256:40 pmKEF - MAD
1 stop11h 50mMultiple Airlines
Thu 5/288:00 pmMAD - KEF
1 stop13h 05mMultiple Airlines
Deal found 12/26$279
This Kiwi.com deal was found by Cheapflights users on 12/26. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/267:00 pmKEF - MAD
1 stop11h 30mMultiple Airlines
Thu 5/288:00 pmMAD - KEF
1 stop13h 05mMultiple Airlines
Deal found 12/26$282
This Kiwi.com deal was found by Cheapflights users on 12/24. 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.
Sat 2/711:00 amKEF - MAD
1 stop11h 30mMultiple Airlines
Sat 2/148:10 pmMAD - KEF
2 stops29h 05mMultiple Airlines
Deal found 12/24$311
This Kiwi.com deal was found by Cheapflights users on 12/26. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/2312:15 amKEF - MAD
1 stop9h 05mMultiple Airlines
Sun 5/3110:35 amMAD - KEF
1 stop9h 15mMultiple Airlines
Deal found 12/26$312
This FlightHub deal was found by Cheapflights users on 12/26. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/2512:20 amKEF - MAD
1 stop21h 10mMultiple Airlines
Sat 5/305:55 amMAD - KEF
2 stops19h 25mMultiple Airlines
Deal found 12/26$324
This Kiwi.com deal was found by Cheapflights users on 12/26. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/288:35 amKEF - MAD
1 stop8h 05mMultiple Airlines
Sat 5/304:05 pmMAD - KEF
1 stop10h 05mMultiple Airlines
Deal found 12/26$363

Find flight deals from Keflavik Intl to Madrid

Discover tips and strategies to find the most affordable flight options for your journey from Keflavik Intl (KEF) to Madrid (MAD). 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 26, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$182
(Kiwi.com)

One-way from

$86
(WAYA)

Popular in

April

Cheapest in

June

Average price

$399
Provider with most accurate pricing for Reykjavik Keflavik Intl-Madrid Barajas flight deals.
Search Deals
Provider most trusted by Cheapflights users for Reykjavik Keflavik Intl-Madrid Barajas flights.
Search Deals
From Reykjavik Keflavik Intl to Madrid Barajas
Search Deals
One-way flight from Reykjavik Keflavik Intl to Madrid Barajas
Search Deals
Highest demand for flights based on searches. 0% potential increase in price ($1 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($14 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 Keflavik Intl to Madrid 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 26, 2025.
Use the filters below to find and compare flights from Reykjavik Keflavik Intl Airport to Madrid that are best for you.

Fly from

Keflavik Intl

Fly to

Madrid

Route

Depart

Return

Price

ReykjavikMadrid

KEF - MAD

KEFMAD

Reykjavik Keflavik Intl

Sat 1/17

3:10 pm-11:35 pm

1 stop7h 25m

Madrid Barajas

Sun 1/25

5:55 am-2:20 pm

1 stop9h 25m

$183

ReykjavikMadrid

KEF - MAD

KEFMAD

Reykjavik Keflavik Intl

Fri 1/9

7:40 pm-9:05 am

1 stop12h 25m

Madrid Barajas

Tue 1/13

4:05 pm-10:05 am

1 stop19h 00m

$263

ReykjavikMadrid

KEF - MAD

KEFMAD

Reykjavik Keflavik Intl

Mon 5/25

6:40 pm-8:30 am

1 stop11h 50m

Madrid Barajas

Thu 5/28

8:00 pm-7:05 am

1 stop13h 05m

$279

ReykjavikMadrid

KEF - MAD

KEFMAD

Reykjavik Keflavik Intl

Tue 5/26

7:00 pm-8:30 am

1 stop11h 30m

Madrid Barajas

Thu 5/28

8:00 pm-7:05 am

1 stop13h 05m

$282

ReykjavikMadrid

KEF - MAD

KEFMAD

Reykjavik Keflavik Intl

Sat 2/7

11:00 am-11:30 pm

1 stop11h 30m

Madrid Barajas

Sat 2/14

8:10 pm-12:15 am

2 stops29h 05m

$311

ReykjavikMadrid

KEF - MAD

KEFMAD

Reykjavik Keflavik Intl

Sat 5/23

12:15 am-11:20 am

1 stop9h 05m

Madrid Barajas

Sun 5/31

10:35 am-5:50 pm

1 stop9h 15m

$312

ReykjavikMadrid

KEF - MAD

KEFMAD

Reykjavik Keflavik Intl

Sat 5/23

12:15 am-11:20 am

1 stop9h 05m

Madrid Barajas

Wed 5/27

11:15 pm-8:00 am

1 stop10h 45m

$315

ReykjavikMadrid

KEF - MAD

KEFMAD

Reykjavik Keflavik Intl

Fri 2/27

1:15 am-11:35 pm

2 stops21h 20m

Madrid Barajas

Fri 3/6

6:00 am-12:25 am

2 stops19h 25m

$316

ReykjavikMadrid

KEF - MAD

KEFMAD

Reykjavik Keflavik Intl

Mon 5/25

12:20 am-11:30 pm

1 stop21h 10m

Madrid Barajas

Sat 5/30

5:55 am-11:20 pm

2 stops19h 25m

$324

ReykjavikMadrid

KEF - MAD

KEFMAD

Reykjavik Keflavik Intl

Sat 1/17

8:05 pm-12:10 pm

1 stop15h 05m

Madrid Barajas

Sun 1/25

8:30 pm-7:05 pm

1 stop23h 35m

$332

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/24

Showing 1-10 of 20 results
1
2

Compare providers for flights from Keflavik Intl to Madrid

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 Keflavik Intl to Madrid in December.
ProviderPrice AccuracyTrust Score*
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star

*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 Reykjavik Keflavik Intl Airport-Madrid flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Reykjavik Keflavik Intl Airport-Madrid flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Reykjavik Keflavik Intl Airport-Madrid flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Reykjavik Keflavik Intl Airport-Madrid 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 Reykjavik Keflavik Intl Airport-Madrid 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 Keflavik Intl to Madrid

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

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

Currently, October is the cheapest month in which you can book a flight from Reykjavik Keflavik Intl Airport to Madrid (average of $114). Flying from Reykjavik Keflavik Intl Airport to Madrid in December is currently the most expensive (average of $338). 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 KEF to MAD?

Find hourly flight availability from Keflavik Intl to Madrid. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 26, 2025.

A simple way to save on the total cost of your ticket is to fly from Reykjavik Keflavik Intl Airport to Madrid at noon. If you’re flexible enough to do this you can expect to save up to 32% on your trip compared to booking a flight in the morning.

How much does it cost to fly round-trip from Reykjavik Keflavik Intl Airport to Madrid?

Reviews of airlines servicing Madrid

Get insights into the airlines that provide service to Madrid. 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 Madrid. Reviews last updated December 26, 2025.
Peruse reviews from past customers who have flown with PLAY from Reykjavik Keflavik Intl Airport to Madrid 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.
PLAY
7.0
Good

Entertainment

4.7

Food

5.5

Comfort

6.5

Crew

8.0

Boarding

7.3

Overall

7.0

Reviews

1 / 2
4.0
Okay

Lisa,Oct 2024

BER - KEF

I’ll never fly Play again. We were jammed into the tiniest spaces ever and they didn’t even give us water, tea, or coffee without charging. When we were coming in for a landing I thought we might never make it off the plane alive. The worst.
PLAY
7.0
Good
PLAY
7.0
Good

Entertainment

4.7

Food

5.5

Comfort

6.5

Crew

8.0

Boarding

7.3

Overall

7.0

Reviews

1 / 2
4.0
Okay

Lisa,Oct 2024

BER - KEF

I’ll never fly Play again. We were jammed into the tiniest spaces ever and they didn’t even give us water, tea, or coffee without charging. When we were coming in for a landing I thought we might never make it off the plane alive. The worst.

Related info for your journey

Find useful and relevant information for your journey from Keflavik Intl to Madrid. 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 into for flights to Madrid from Reykjavik Keflavik Intl?

    Most people fly into Madrid Barajas (MAD) if they book a flight to Madrid from Reykjavik Keflavik Intl. On average, Barajas has 0 inbound flights from Reykjavik Keflavik Intl per day from 1 airline. Madrid Barajas is conveniently located just 8.5 mi from Madrid’s city center.

  • What is the cheapest airline to fly from Reykjavik Keflavik Intl Airport to Madrid round-trip?

    Cheapflights users have booked flights from Reykjavik Keflavik Intl Airport to Madrid round-trip from $200. PLAY is currently priced 38% below the average price you’ll pay for this route.

  • What are the most reliable airlines from Reykjavik Keflavik Intl Airport to Madrid?

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Reykjavik Keflavik Intl Airport to Madrid on time: Vueling (100%), LATAM Airlines (100%), Iberia (100%).

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

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

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

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

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

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

    Currently, October is the cheapest month in which you can book a flight from Reykjavik Keflavik Intl Airport to Madrid (average of $114). Flying from Reykjavik Keflavik Intl Airport to Madrid in December is currently the most expensive (average of $338). 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 Madrid?

Book flights to Madrid if you plan to visit one of these locations
Getafe

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Top airline flying from Keflavik Intl to Madrid

Discover the top airline that operate flights from Keflavik Intl to Madrid. 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 26, 2025.
AirlineCheapestAverageFlexibilityOn-time
PLAYCheapest$214Average$337FlexibilityNo cancel feeOn-timeN/A

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