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Keflavik Intl

$78+ 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 5/13. Fares are subject to change and may not be available on all flights or dates of travel.
MAD — KEF
Mar 6 — Mar 131
Fri 3/6
Fri 3/13
1 adult, Economy
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Cheapflights Tip: The best prices from Madrid Barajas to Reykjavik Keflavik Intl are usually found in May or December, booked 76 days in advance, depart on a Monday or Thursday and return on a Wednesday

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 February 4, 2026.

This Mytrip deal was found by Cheapflights users on 2/2. 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 4/89:40 pm
MAD
-
KEF
2 stops23h 15m
Multiple Airlines
Tue 4/147:25 pm
KEF
-
MAD
2 stops14h 25m
Multiple Airlines
Deal found 2/2$256
This Transavia Smart Connect deal was found by Cheapflights users on 2/2. 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 Transavia Smart Connect is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/158:45 pm
MAD
-
KEF
1 stop29h 25m
Transavia France
Mon 5/181:00 am
KEF
-
MAD
1 stop17h 00m
Transavia France
Deal found 2/2$258
This Kiwi.com deal was found by Cheapflights users on 2/1. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/108:00 pm
MAD
-
KEF
1 stop13h 05m
Multiple Airlines
Sun 9/277:35 pm
KEF
-
MAD
1 stop12h 20m
Multiple Airlines
Deal found 2/1$264
This Kiwi.com deal was found by Cheapflights users on 2/4. 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 4/37:40 pm
MAD
-
KEF
1 stop22h 55m
Multiple Airlines
Thu 5/281:00 am
KEF
-
MAD
1 stop13h 25m
Multiple Airlines
Deal found 2/4$266
This Kiwi.com deal was found by Cheapflights users on 2/4. 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 4/37:40 pm
MAD
-
KEF
1 stop22h 55m
Multiple Airlines
Wed 6/38:20 am
KEF
-
MAD
1 stop10h 40m
Multiple Airlines
Deal found 2/4$270
This Mytrip deal was found by Cheapflights users on 2/3. 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.
Fri 3/2010:15 am
MAD
-
KEF
1 stop15h 00m
Multiple Airlines
Tue 3/2410:20 am
KEF
-
MAD
2 stops21h 50m
Multiple Airlines
Deal found 2/3$273
This Kiwi.com deal was found by Cheapflights users on 2/3. 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 4/247:40 pm
MAD
-
KEF
1 stop22h 55m
Multiple Airlines
Sun 4/268:55 am
KEF
-
MAD
1 stop11h 10m
Multiple Airlines
Deal found 2/3$274
This Kiwi.com deal was found by Cheapflights users on 2/1. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/108:00 pm
MAD
-
KEF
1 stop13h 05m
Multiple Airlines
Thu 10/17:35 pm
KEF
-
MAD
1 stop12h 20m
Multiple Airlines
Deal found 2/1$276
This Kiwi.com deal was found by Cheapflights users on 2/4. 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 4/410:10 am
MAD
-
KEF
1 stop15h 00m
Multiple Airlines
Mon 6/11:00 am
KEF
-
MAD
1 stop9h 10m
Multiple Airlines
Deal found 2/4$277
This Kiwi.com deal was found by Cheapflights users on 2/1. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/912:25 pm
MAD
-
KEF
2 stops12h 45m
Multiple Airlines
Sun 9/277:35 pm
KEF
-
MAD
1 stop12h 20m
Multiple Airlines
Deal found 2/1$279
This Kiwi.com deal was found by Cheapflights users on 2/2. 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 3/319:55 am
MAD
-
KEF
1 stop10h 50m
Multiple Airlines
Mon 6/11:00 am
KEF
-
MAD
1 stop9h 10m
Multiple Airlines
Deal found 2/2$280

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 February 4, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$256
(Mytrip)

One-way from

$78
(Kiwi.com)

Popular in

August

Cheapest in

May

Average price

$300

Good round-trip deal

$399 or less
Provider with most accurate pricing for Madrid Barajas-Reykjavik Keflavik Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Madrid Barajas-Reykjavik Keflavik Intl flights.
Search Deals
From Madrid Barajas to Reykjavik Keflavik Intl
Search Deals
One-way flight from Madrid Barajas to Reykjavik Keflavik Intl
Search Deals
Highest demand for flights based on searches. 17% potential increase in price ($68 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 5% potential price decrease ($18 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals
Price to beat on a round-trip flight from Madrid Barajas to Reykjavik Keflavik Intl.
Search Deals

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 February 4, 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

Fri 3/20

9:15 pm-5:45 pm

1 stop21h 30m

Reykjavik Keflavik Intl

Tue 3/24

6:35 pm-9:55 am

1 stop14h 20m

$302

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

$313

MadridReykjavik

MAD - KEF

MADKEF

Madrid Barajas

Wed 4/1

7:30 pm-8:25 am

1 stop14h 55m

Reykjavik Keflavik Intl

Sun 5/31

12:20 am-4:00 pm

1 stop13h 40m

$327

MadridReykjavik

MAD - KEF

MADKEF

Madrid Barajas

Wed 4/8

12:55 pm-11:50 pm

1 stop12h 55m

Reykjavik Keflavik Intl

Tue 4/14

11:15 am-12:05 pm

2 stops22h 50m

$364

MadridReykjavik

MAD - KEF

MADKEF

Madrid Barajas

Tue 3/31

5:55 am-11:20 pm

2 stops19h 25m

Reykjavik Keflavik Intl

Sun 5/31

12:20 am-4:00 pm

1 stop13h 40m

$377

MadridReykjavik

MAD - KEF

MADKEF

Madrid Barajas

Thu 4/2

12:50 pm-7:05 am

2 stops20h 15m

Reykjavik Keflavik Intl

Mon 4/13

11:15 am-12:05 pm

2 stops22h 50m

$402

MadridReykjavik

MAD - KEF

MADKEF

Madrid Barajas

Wed 4/1

7:30 pm-8:25 am

1 stop14h 55m

Reykjavik Keflavik Intl

Fri 5/29

12:25 am-12:20 pm

1 stop9h 55m

$422

MadridReykjavik

MAD - KEF

MADKEF

Madrid Barajas

Tue 5/12

9:55 am-3:15 pm

1 stop31h 20m

$86

MadridReykjavik

MAD - KEF

MADKEF

Madrid Barajas

Sat 5/9

12:25 pm-8:30 am

1 stop22h 05m

$110

MadridReykjavik

MAD - KEF

MADKEF

Madrid Barajas

Sun 5/10

9:55 am-6:25 pm

1 stop10h 30m

$134

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/2

Showing 1-10 of 16 results
1
2
  • Most accurate provider: When it comes to deals on Madrid-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 Madrid-Reykjavik Keflavik Intl Airport flight deals on Cheapflights vs. FlightHub >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 FlightHub the most. FlightHub 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 January 30, 2026.

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, March is the cheapest month in which you can book a flight from Madrid to Reykjavik Keflavik Intl Airport (average of $151). Flying from Madrid to Reykjavik Keflavik Intl Airport in August is currently the most expensive (average of $284). 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?

    easyJet and KLM can get you from Madrid to Reykjavik Keflavik Intl Airport in just under 8h. Your travel time can differ by up to 13h 30m. Airlines will cover a distance of 1795 mi. This flight may include one or multiple stops.

  • 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 $424.

  • 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 $151). Flying from Madrid to Reykjavik Keflavik Intl Airport in August is currently the most expensive (average of $284). 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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