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Keflavik Intl

$66+ Cheap flights from Madrid, Spain (MAD) 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 3/25. Fares are subject to change and may not be available on all flights or dates of travel.
MAD — KEF
Jan 31 — Feb 71
Sat 1/31
Sat 2/7
1 adult, Economy
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1. Tell us where you want to go

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Cheapflights Tip: The best prices from Madrid Barajas to Reykjavik Keflavik Intl are usually found in May or March, booked 77 days in advance, depart on a Monday or Thursday and return on a Thursday

Cheap flight deals from Madrid to Keflavik Intl

Cheapest flights from Madrid to Keflavik Intl
Explore the most affordable flight options available from Madrid to Keflavik Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 1, 2026.

This Finnair deal was found by Cheapflights users on 12/30. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/318:40 amMAD - KEF
2 stops25h 20mFinnair
Wed 1/710:00 amKEF - MAD
2 stops11h 10mFinnair
Deal found 12/30$641
This British Airways deal was found by Cheapflights users on 12/31. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/315:20 pmMAD - KEF
1 stop18h 25mBritish Airways
Wed 1/711:50 amKEF - MAD
1 stop7h 10mBritish Airways
Deal found 12/31$713
This Finnair deal was found by Cheapflights users on 12/31. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/313:05 pmMAD - KEF
2 stops18h 55mMultiple Airlines
Wed 1/710:00 amKEF - MAD
2 stops11h 10mMultiple Airlines
Deal found 12/31$753
This KLM deal was found by Cheapflights users on 12/31. 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.
Wed 12/311:05 pmMAD - KEF
2 stops22h 40mKLM
Wed 1/78:05 pmKEF - MAD
1 stop15h 05mKLM
Deal found 12/31$2,338

Find flight deals from Madrid to Keflavik Intl

Discover tips and strategies to find the most affordable flight options for your journey from Madrid (MAD) 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 January 1, 2026.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$265
(Connections by easyJet)

One-way from

$66
(Connections by easyJet)

Popular in

August

Cheapest in

May

Average price

$439

Good round-trip deal

$399 or less
Provider with most accurate pricing for Madrid Barajas-Reykjavik Keflavik Intl flight deals.
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Provider most trusted by Cheapflights users for Madrid Barajas-Reykjavik Keflavik Intl flights.
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From Madrid Barajas to Reykjavik Keflavik Intl
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One-way flight from Madrid Barajas to Reykjavik Keflavik Intl
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Highest demand for flights based on searches. 18% potential increase in price ($73 potential increase over avg. RT price).
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Cheapest flight prices on average. 6% potential price decrease ($19 potential savings vs. average RT price).
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Average for round-trip flights in January 2026
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Price to beat on a round-trip flight from Madrid Barajas to Reykjavik Keflavik Intl.
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Cheapflights Fare Finder

 
Customize your flight search to find flights from Madrid 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 January 1, 2026.
Use the filters below to find and compare flights from Madrid to Reykjavik Keflavik Intl Airport that are best for you.

Fly from

Madrid

Fly to

Keflavik Intl

Route

Depart

Return

Price

MadridReykjavik

MAD - KEF

MADKEF

Madrid Barajas

Thu 2/5

4:50 pm-10:25 am

1 stop18h 35m

Reykjavik Keflavik Intl

Mon 2/9

8:05 pm-10:15 am

1 stop13h 10m

$266

MadridReykjavik

MAD - KEF

MADKEF

Madrid Barajas

Tue 3/3

11:00 am-6:00 pm

1 stop8h 00m

Reykjavik Keflavik Intl

Tue 3/10

7:00 pm-10:15 am

1 stop14h 15m

$266

MadridReykjavik

MAD - KEF

MADKEF

Madrid Barajas

Sat 1/31

3:00 pm-10:30 am

1 stop20h 30m

Reykjavik Keflavik Intl

Wed 2/4

6:05 pm-8:40 pm

1 stop25h 35m

$268

MadridReykjavik

MAD - KEF

MADKEF

Madrid Barajas

Thu 4/16

10:15 am-4:20 pm

1 stop8h 05m

Reykjavik Keflavik Intl

Sun 4/19

9:20 am-10:40 am

1 stop23h 20m

$276

MadridReykjavik

MAD - KEF

MADKEF

Madrid Barajas

Mon 6/1

6:00 am-12:10 am

1 stop20h 10m

Reykjavik Keflavik Intl

Sat 6/13

1:00 am-11:45 am

1 stop8h 45m

$345

MadridReykjavik

MAD - KEF

MADKEF

Madrid Barajas

Tue 1/13

5:20 pm-10:50 am

1 stop18h 30m

Reykjavik Keflavik Intl

Thu 1/22

11:45 am-1:35 pm

1 stop24h 50m

$374

MadridReykjavik

MAD - KEF

MADKEF

Madrid Barajas

Sun 2/1

6:45 am-5:05 pm

1 stop11h 20m

Reykjavik Keflavik Intl

Wed 2/11

11:50 am-8:00 pm

1 stop7h 10m

$374

MadridReykjavik

MAD - KEF

MADKEF

Madrid Barajas

Thu 1/29

6:00 am-7:05 pm

1 stop14h 05m

Reykjavik Keflavik Intl

Mon 2/2

8:05 pm-10:15 am

1 stop13h 10m

$397

MadridReykjavik

MAD - KEF

MADKEF

Madrid Barajas

Wed 6/24

6:00 am-7:00 pm

1 stop15h 00m

Reykjavik Keflavik Intl

Fri 7/3

8:05 pm-9:30 am

1 stop11h 25m

$400

MadridReykjavik

MAD - KEF

MADKEF

Madrid Barajas

Thu 5/14

6:00 am-6:15 pm

1 stop14h 15m

Reykjavik Keflavik Intl

Sun 5/17

8:10 pm-9:30 am

1 stop11h 20m

$412

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/30

Showing 1-10 of 20 results
1
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Compare providers for flights from Madrid 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 Madrid to Keflavik Intl in January.
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 Madrid-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 Madrid-Reykjavik Keflavik Intl Airport flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Madrid-Reykjavik Keflavik Intl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Madrid-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 Madrid-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 Madrid to Keflavik Intl

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

How far ahead should I book a flight from Madrid to Reykjavik Keflavik Intl Airport?

Use this chart to determine the optimal time to book a round-trip flight from Madrid to Keflavik Intl. Price data was last updated on December 26, 2025.

Booking 77 days in advance of your planned departure date is, on average, the best time to get cheap flights from Madrid to Reykjavik Keflavik Intl Airport. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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

Currently, March is the cheapest month in which you can book a flight from Madrid to Reykjavik Keflavik Intl Airport (average of $110). Flying from Madrid to Reykjavik Keflavik Intl Airport in August is currently the most expensive (average of $282). 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.

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

Related info for your journey

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

    Madrid Barajas (MAD) is the airport you will fly out of if you book a flight from Madrid to Reykjavik Keflavik Intl. You should not have trouble finding flights to Reykjavik Keflavik Intl from Barajas; the airport handles an average of 0 outbound flights to Reykjavik Keflavik Intl per day. You should also have plenty of airline options to choose from since 0 airlines have flights from the Madrid airport to Reykjavik Keflavik Intl. It is only a 8.5 mi journey to Barajas (MAD) from Madrid’s city center.

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

    KLM can get you from Madrid to Reykjavik Keflavik Intl Airport in just under 8h. Your travel time can differ by up to . Airlines will cover a distance of 1795 mi.

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

    To fly one-way, consider booking your trip with Iberia Express, which is currently one of the cheapest options available, starting at $76. PLAY flights start at $156 while deals on WorldTicket start at $210 one-way.

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

    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 Madrid to Reykjavik Keflavik Intl Airport on time: Vueling (67%), LATAM Airlines (67%), Iberia (67%).

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

    Looking for the cheapest flight from Madrid to Reykjavik Keflavik Intl Airport? While on average our users pay $399, our data indicates the cheapest price to be $399. The most popular route (Madrid Barajas - Reykjavik Keflavik Intl), is priced around $281.

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

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

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

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

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

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

    Currently, March is the cheapest month in which you can book a flight from Madrid to Reykjavik Keflavik Intl Airport (average of $110). Flying from Madrid to Reykjavik Keflavik Intl Airport in August is currently the most expensive (average of $282). 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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