Icelandair Madrid-Keflavík flights: 2027 route guide

Icelandair plans to restore nonstop flights between Madrid and Keflavík on April 9, 2027. The seasonal route is scheduled to run until October 25, starting with two flights a week before increasing to three from May 19.

The airline has opened a Madrid-to-Reykjavík sales page with 2027 inventory. Search the exact dates before arranging a separate connection or non-refundable stay, because a future seasonal timetable can still change.

*Original AI-generated OpenSim editorial illustration. The unbranded aircraft and blended landscapes do not show an actual Icelandair flight or a real view along the route.*

The practical answer: Icelandair announced two to three weekly Madrid-Keflavík flights from April 9 through October 25, 2027, using a Boeing 737 MAX 8. The filed timetable adds Wednesday service on May 19. Confirm that the result is nonstop and check the live times, fare rules and operating airline before paying.

This guide was checked on October 10, 2026, two days after the airline published the route announcement.

The announced Madrid-Iceland schedule

The Icelandair Group announcement gives the season, frequency range and operating days. The schedule filing reported by AeroRoutes supplies the flight numbers and local times.

Times are local. The airline describes a Monday, Wednesday and Friday pattern across the season, but two weekly flights cannot operate on all three days. Use Icelandair's date-specific schedule tool to confirm which days are available in the earlier two-flight period.

Madrid is returning to Icelandair's network rather than joining as a first-time destination. The carrier last served the route in 2024, according to AeroRoutes. Its broad 2026-27 destination table had not yet added Madrid when checked on October 10, even though the announcement and sales page were live. Treat the booking result for the chosen date as the operational reference.

Decide whether Iceland is the destination or the connection

The same nonstop can support an Iceland holiday, a Madrid city trip or a longer journey through Keflavík. Those plans need different checks.

For an Iceland trip, remember that KEF is not in central Reykjavík. Icelandair places its international hub about 50 kilometres from the capital. Keflavík Airport's transport page lists scheduled buses, public transport, taxis and rental cars. Build the ground transfer into the arrival day rather than treating the airport code as a city-centre arrival.

For a transatlantic connection, compare the complete through itinerary, not just the Madrid flight. A three-weekly route offers fewer recovery choices than a daily service. Check the total journey time, connection length, airport and operating carrier for every segment. A separate ticket can require a new check-in and leave the traveler responsible for a missed onward flight.

Icelandair also markets an Iceland stopover on eligible transatlantic itineraries. A planned stopover is different from leaving the airport during a normal connection: it creates a dated stay in Iceland and may change the total fare because the onward flight date changes.

Make a KEF connection deliberately

Icelandair's Keflavík connection guide says flights between Iceland and continental Europe generally use the A or C gate zones. North American, UK and Irish flights generally use D gates, with a walk of about 20 minutes between those areas. Passport control can also apply, depending on the onward journey.

If all Icelandair flights are in one booking, the airline says checked baggage is normally tagged to the final destination. Travelers stopping in Iceland or transferring to Reykjavík Domestic Airport must collect it. Separate tickets can change the process, so read the bag tag issued at check-in rather than relying on a general rule.

Do not turn a short connection into an improvised Reykjavík visit. The airport is outside the city, gate details may appear only 70 to 90 minutes before departure, and border or security steps depend on the itinerary. Book a stopover or overnight stay if time in Iceland is part of the plan.

Check Madrid airport and fare details again

Adolfo Suárez Madrid-Barajas has four terminals, and the operating terminal for a future route should be confirmed close to travel. Aena's airport page lists Metro Line 8, suburban trains to Terminal 4, buses and taxis. Do not choose a rail or hotel transfer around an assumed terminal before Icelandair publishes it for the booked departure.

Icelandair's online check-in page says check-in opens 24 hours before departure. A boarding pass on a phone does not remove the need for a document check or bag drop when either applies.

Baggage, seats, changes and refunds depend on the fare selected. Compare the final checkout total, not just the first price shown. Keep medication, identification, batteries and essentials in the smaller item that stays with you if a larger cabin bag is checked at the gate.

The Boeing 737 MAX 8 is the announced aircraft, not a guarantee for every date. Recheck the aircraft, seat map and operated-by line on the live reservation.

Mobile data for Madrid, Iceland and onward travel

A Spain OpenSim eSIM can cover ground-based mobile data around Madrid on a compatible unlocked phone. An Iceland OpenSim eSIM may fit a trip focused on the Iceland side of the route. Compare a Europe OpenSim eSIM when the selected package includes every country on a multi-stop itinerary.

OpenSim's public catalog was checked on October 10 and included live plans for Spain, Iceland and Europe. Data, validity, networks, hotspot support and top-up eligibility vary by package and can change. Read the selected card before checkout. An eSIM does not provide inflight Wi-Fi, protect a separate-ticket connection or extend an app's local service area.

Travelers comparing the other route in the same airline announcement can read the separate Icelandair St. Louis-Keflavík guide. It owns that route's schedule and Southwest connection questions.

Ten questions about Icelandair's Madrid flights

When do Icelandair's Madrid-Keflavík flights start and end?

The announced season runs from April 9 through October 25, 2027. It is a future seasonal service, so confirm the selected flight remains available before committing to separate arrangements.

Which days will the MAD-KEF nonstop operate?

Icelandair lists Monday, Wednesday and Friday across the season. The filed schedule is twice weekly from April 9, then three times weekly from May 19. Check the date-specific result for the exact early-season days.

What are the Icelandair flight numbers and times?

The published filing shows FI996 leaving KEF at 08:40 and reaching Madrid at 15:00. FI997 is scheduled to leave Madrid at 16:10 and arrive at KEF at 18:30. All times are local and can change before departure.

Are the Madrid flights on sale now?

Icelandair has a Madrid-to-Reykjavík sales page showing 2027 inventory. Availability and fares are date-specific, so search both directions and confirm that the result is the nonstop rather than a connecting alternative.

What aircraft will Icelandair use from Madrid?

The announced aircraft is a Boeing 737 MAX 8. Check the live booking and seat map because airlines can substitute aircraft.

How long should I allow for a connection at Keflavík?

There is no single safe number for every itinerary. Gates, passport control, mobility needs and separate tickets change the answer. Prefer a through itinerary Icelandair sells and leave more margin when a missed connection would affect a fixed event.

Will my checked bag transfer in Iceland?

On one Icelandair booking, bags are generally checked through to the final destination. A stopover in Iceland, onward travel from Reykjavík Domestic Airport or separate tickets can require collection. Confirm the destination printed on the bag tag.

Is a short KEF layover enough for Reykjavík?

Not on a short ordinary connection. KEF is about 50 kilometres from Reykjavík, and the round trip to the city adds ground travel plus airport processing. Choose a planned stopover or overnight stay instead.

Which Madrid terminal will Icelandair use?

The launch announcement did not specify a terminal. Check Icelandair's booking, Aena's flight information and the boarding pass close to departure rather than assuming the terminal from another carrier.

Should I choose a Spain, Iceland or Europe eSIM?

Choose a country plan when the ground journey stays mainly in that country. Compare a Europe plan for a multi-country trip only after checking that every stop appears in the selected package's coverage list.

Before booking

• Search the complete April 9 to October 25 season for both directions.
• Confirm that the result says nonstop between MAD and KEF.
• Check whether the selected date falls in the two-flight or three-flight period.
• Read the live times, aircraft, operating carrier and terminal details.
• Compare the full fare, including the bags and seats you need.
• Keep a recovery buffer around separate tickets and fixed events.
• Decide whether Iceland is the destination, a stopover or a connection.
• Allow for the ground transfer between KEF and Reykjavík.
• Recheck passport and destination entry requirements before travel.
• Save the itinerary and essential transfer details for offline access.

Watch the timetable before departure

The airline announcement supplied the season, frequency range, days and aircraft. The schedule filing supplied the frequency change, flight numbers and local times. Icelandair's sales page showed 2027 inventory, while its broad destination table had not yet caught up when this guide was checked.

Public traveler discussions were used to identify recurring questions about KEF connection time, checked baggage, short layovers, cabin bags and Madrid transfers. They were not used as evidence for current airline or airport policy.

*Airline, airport, schedule and OpenSim catalog details were checked on October 10, 2026. Update this guide when Icelandair changes the timetable or sale status, publishes the Madrid terminal, starts service, or materially changes the season, frequency, aircraft, baggage, check-in, connection or route status.*