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Keflavik Intl

$86+ 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 9/10. Fares are subject to change and may not be available on all flights or dates of travel.
MAD — KEF
Jul 6 — Jul 131
Sun 7/6
Sun 7/13
1 adult, Economy
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Cheapflights Tip: The best prices from Madrid Barajas to Reykjavik Keflavik Intl are usually found in January or May, booked 75 days in advance, depart on a Monday or Thursday and return on a Wednesday

Cheap 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 July 1, 2025.

Round-trip from

$184
(Connections by easyJet)

One-way from

$86
(Connections by easyJet)

Popular in

August

Cheapest in

January

Average price

$351

Good round-trip deal

$225 or less

Good one-way deal

$231 or less
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. 21% potential increase in price ($78 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($14 potential savings vs. average RT price).
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Average for round-trip flights in July 2025
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Price to beat on a round-trip flight from Madrid Barajas to Reykjavik Keflavik Intl.
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Price to beat on a one-way flight from Madrid Barajas to Reykjavik Keflavik Intl.
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Find 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 July 1, 2025.

This Connections by easyJet deal was found by Cheapflights users on 6/30. 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 Connections by easyJet is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/1610:05 amMAD - KEF
1 stop15h 30measyJet
Tue 9/2312:15 amKEF - MAD
1 stop17h 45measyJet
Deal found 6/30$184
This Iberia Express deal was found by Cheapflights users on 7/1. 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 Iberia Express is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/610:20 pmMAD - KEF
Nonstop4h 25mIberia Express
Sun 7/131:30 amKEF - MAD
Nonstop4h 25mIberia Express
Deal found 7/1$201
This Kiwi.com deal was found by Cheapflights users on 6/30. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/610:20 pmMAD - KEF
Nonstop4h 25mMultiple Airlines
Sun 7/131:30 amKEF - MAD
Nonstop4h 25mMultiple Airlines
Deal found 6/30$208
This PLAY deal was found by Cheapflights users on 7/1. 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 PLAY is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/1410:15 pmMAD - KEF
Nonstop4h 35mPLAY
Mon 11/243:50 pmKEF - MAD
Nonstop4h 25mPLAY
Deal found 7/1$209
This Iberia deal was found by Cheapflights users on 6/30. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/210:20 pmMAD - KEF
Nonstop4h 25mIberia
Tue 7/81:30 amKEF - MAD
Nonstop4h 25mIberia
Deal found 6/30$255
This SWISS deal was found by Cheapflights users on 7/1. 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 SWISS is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/1510:05 amMAD - KEF
1 stop24h 30mSWISS
Tue 9/234:10 pmKEF - MAD
1 stop15h 10mSWISS
Deal found 7/1$268
This Lufthansa deal was found by Cheapflights users on 7/1. 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.
Wed 9/178:35 amMAD - KEF
1 stop17h 00mLufthansa
Mon 9/2212:25 amKEF - MAD
1 stop17h 25mLufthansa
Deal found 7/1$315

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 July 1, 2025.
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

Tue 9/16

10:05 am-11:35 pm

1 stop15h 30m

Reykjavik Keflavik Intl

Tue 9/23

12:15 am-8:00 pm

1 stop17h 45m

$184

MadridReykjavik

MAD - KEF

MADKEF

Madrid Barajas

Fri 11/14

10:15 pm-1:50 am

Nonstop4h 35m

Reykjavik Keflavik Intl

Mon 11/24

3:50 pm-9:15 pm

Nonstop4h 25m

$209

MadridReykjavik

MAD - KEF

MADKEF

Madrid Barajas

Sun 7/20

10:20 pm-12:45 am

Nonstop4h 25m

Reykjavik Keflavik Intl

Wed 7/30

1:30 am-7:55 am

Nonstop4h 25m

$249

MadridReykjavik

MAD - KEF

MADKEF

Madrid Barajas

Mon 9/15

10:05 am-8:35 am

1 stop24h 30m

Reykjavik Keflavik Intl

Tue 9/23

4:10 pm-9:20 am

1 stop15h 10m

$268

MadridReykjavik

MAD - KEF

MADKEF

Madrid Barajas

Sun 7/20

10:20 pm-12:45 am

Nonstop4h 25m

Reykjavik Keflavik Intl

Thu 7/31

7:10 pm-9:15 am

1 stop12h 05m

$285

MadridReykjavik

MAD - KEF

MADKEF

Madrid Barajas

Wed 9/17

8:35 am-11:35 pm

1 stop17h 00m

Reykjavik Keflavik Intl

Mon 9/22

12:25 am-7:50 pm

1 stop17h 25m

$315

MadridReykjavik

MAD - KEF

MADKEF

Madrid Barajas

Wed 9/10

11:15 pm-8:15 am

1 stop11h 00m

$86

MadridReykjavik

MAD - KEF

MADKEF

Madrid Barajas

Sun 7/6

10:20 pm-12:45 am

Nonstop4h 25m

$99

MadridReykjavik

MAD - KEF

MADKEF

Madrid Barajas

Sun 7/6

10:20 pm-12:45 am

Nonstop4h 25m

$112

MadridReykjavik

MAD - KEF

MADKEF

Madrid Barajas

Wed 10/29

10:25 am-11:40 am

1 stop26h 15m

$132

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/29

Showing 1-10 of 16 results
1
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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 June 27, 2025.

Booking 75 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, November is the cheapest month in which you can book a flight from Madrid to Reykjavik Keflavik Intl Airport (average of $328). Flying from Madrid to Reykjavik Keflavik Intl Airport in June is currently the most expensive (average of $653). 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 MAD to KEF?

Find hourly flight availability from Madrid to Keflavik Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 1, 2025.

It’s optimal to fly from Madrid to Reykjavik Keflavik Intl Airport at noon. By choosing this option you can save up to 39% on the cost of your flight, compared to a flight in the morning.

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

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 July 1, 2025.
Peruse reviews from past customers who have flown with LOT, Finnair, and SWISS from Madrid to Reykjavik Keflavik Intl Airport 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.
LOT
7.6
Good
1,089 reviews

Crew

8.2

Entertainment

7.0

Boarding

7.6

Food

7.2

Comfort

7.5

Overall

7.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Oct 2024

WAW - LAX

It was a small jet plane and they spoke very fast, difficult to understand flight departure instructions in English.
LOT
7.6
Good
1,089 reviews
LOT
7.6
Good
1,089 reviews

Crew

8.2

Entertainment

7.0

Boarding

7.6

Food

7.2

Comfort

7.5

Overall

7.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Oct 2024

WAW - LAX

It was a small jet plane and they spoke very fast, difficult to understand flight departure instructions in English.
Finnair
7.6
Good
1,301 reviews
LOT
7.6
Good
1,089 reviews

Crew

8.2

Entertainment

7.0

Boarding

7.6

Food

7.2

Comfort

7.5

Overall

7.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Oct 2024

WAW - LAX

It was a small jet plane and they spoke very fast, difficult to understand flight departure instructions in English.
SWISS
7.5
Good
1,654 reviews
LOT
7.6
Good
1,089 reviews

Crew

8.2

Entertainment

7.0

Boarding

7.6

Food

7.2

Comfort

7.5

Overall

7.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Oct 2024

WAW - LAX

It was a small jet plane and they spoke very fast, difficult to understand flight departure instructions in English.
Transavia France
7.4
Good
352 reviews
LOT
7.6
Good
1,089 reviews

Crew

8.2

Entertainment

7.0

Boarding

7.6

Food

7.2

Comfort

7.5

Overall

7.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Oct 2024

WAW - LAX

It was a small jet plane and they spoke very fast, difficult to understand flight departure instructions in English.
PLAY
7.0
Good
102 reviews
LOT
7.6
Good
1,089 reviews

Crew

8.2

Entertainment

7.0

Boarding

7.6

Food

7.2

Comfort

7.5

Overall

7.6

Reviews

1 / 20
8.0
Excellent

Anonymous,Oct 2024

WAW - LAX

It was a small jet plane and they spoke very fast, difficult to understand flight departure instructions in English.

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 1 outbound flight to Reykjavik Keflavik Intl per day. You should also have plenty of airline options to choose from since 1 airline has 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.

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

    Currently priced at $184, easyJet will fly you from Madrid to Reykjavik Keflavik Intl Airport and back. In addition to easyJet, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from PLAY and Iberia Express - these airlines can fly you to your destination from $209 and $249, respectively. easyJet is currently priced 34% below the average price you’ll pay for this route.

  • 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 easyJet, which is currently one of the cheapest options available, starting at $86. Iberia Express flights start at $99 while deals on Iberia start at $112 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 (100%), LATAM Airlines (100%), Iberia (100%).

  • 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 $302, our data indicates the cheapest price to be $87. The most popular route (Madrid Barajas - Reykjavik Keflavik Intl), is priced around $351.

  • 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, November is the cheapest month in which you can book a flight from Madrid to Reykjavik Keflavik Intl Airport (average of $328). Flying from Madrid to Reykjavik Keflavik Intl Airport in June is currently the most expensive (average of $653). 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?

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Keflavik
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Top airline flying from Madrid to Keflavik Intl

Discover the top airline that operate flights from Madrid 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 July 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
PLAYCheapest$158Average$232FlexibilityNo cancel feeOn-timeN/A

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