Icelandair bets on Madrid and St. Louis for summer 2027: a revolution for your travels to America and Europe

As it approaches its 90th anniversary, Icelandair is set to redefine transatlantic travel with new summer 2027 routes to Madrid and St. Louis. A strategic partnership with Southwest Airlines will expand connectivity, offering flexible itineraries between Europe, Iceland, and the U.S. This double expansion could reshape travel habits for those seeking less conventional destinations.

These announcements align with a strengthened collaboration with Southwest Airlines, a strategic partnership aimed at broadening connection possibilities between Europe, Iceland, and the United States. For passengers, this means more flexible itineraries and optimized travel options, all backed by the airline’s renowned onboard service excellence. But what are the concrete details of this expansion, and how could it impact your next travel plans?

Icelandair will return to Madrid in April 2027, with two to three weekly flights departing on Mondays, Wednesdays, and Fridays. The seasonal service, running from early April to late October, is expected to appeal to both business travelers and tourists seeking sunshine and cultural heritage. Meanwhile, St. Louis will join the airline’s summer network starting May 14, 2027, with three to four weekly flights until October 24. This rare opportunity allows exploration of this iconic Midwestern U.S. city, known for its rich history and vibrant cultural scene.

The airline’s stated goal is clear: provide passengers with an additional gateway to the U.S. while solidifying its position as a key hub between Europe and North America. The partnership with Southwest Airlines, already well-established, will multiply connections and ease access to U.S. destinations less served by major networks. For French travelers, this could mean fewer layovers and smoother routes to cities like Dallas, Houston, or Austin via the offered connections.

Madrid’s return: a strategic choice for Europe

Icelandair’s return to Madrid after years of absence sends a strong signal to European travelers. Spain’s capital, with Adolfo Suárez Madrid-Barajas Airport, is a major hub for Southern Europe and Latin America. By reintroducing this route, Icelandair fills a gap in its network, offering an alternative to traditional connections from Paris, London, or Amsterdam.

For passengers departing from Iceland, Madrid serves as an ideal stopover to reach destinations like Lisbon, Rome, or Athens, or to extend their stay in the Iberian Peninsula. With two to three weekly flights, flexibility is key—whether for business trips or leisure getaways. Departures on Mondays, Wednesdays, and Fridays allow for easy weekend trips, a boon for time-pressed vacationers.

Icelandair is also banking on service quality to attract passengers. Aircraft likely to operate this route, such as Boeing 737 MAX or Airbus A321neo, offer optimized comfort and a modern flying experience. For business travelers, the airline highlights the ability to work efficiently onboard, thanks to improved connectivity and dedicated spaces. An option that could appeal to frequent flyers seeking productivity during their travels.

While specific fares and service classes haven’t been announced, Icelandair is known for offering competitive European fares with flexible options to suit all budgets. A strategy that could attract a diverse clientele, from tourists to business travelers.

St. Louis: an overlooked gateway to the U.S.

The launch of a St. Louis route is one of Icelandair’s most surprising announcements for summer 2027. This Missouri city, often overshadowed by major U.S. metropolises like New York or Los Angeles, boasts unique charm and remarkable accessibility. With its historic monuments, museums, and musical vibe, St. Louis is a destination worth rediscovering. For travelers seeking authenticity, this route offers a rare chance to visit a less touristy but equally captivating city.

For Icelandair, St. Louis becomes a strategic connection point between Europe, Iceland, and the U.S. Thanks to the partnership with Southwest Airlines, passengers can easily extend their journey to other U.S. destinations like Dallas, Houston, Austin, or even Mexico City. This flexibility could appeal to travelers seeking multi-destination itineraries without multiple layovers in traditional hubs like New York or Chicago.

With three to four weekly flights departing on Mondays, Wednesdays, Fridays, and Sundays, travelers enjoy great scheduling freedom. While exact timings haven’t been detailed, Icelandair typically offers practical departure slots—evenings or early mornings—to optimize connections. This attention to detail could make this route a major asset for travel plans starting summer 2027.

For travelers departing from Europe, this new route offers an alternative to direct flights to New York or Boston. With a stopover in Reykjavik, St. Louis can be reached in under 10 hours—comparable to direct flights to major U.S. cities. An option that could appeal to those looking to avoid overcrowded traditional hubs.

Southwest Airlines: a key partner to extend your journey

The interline agreement with Southwest Airlines is central to this expansion. This partnership allows Icelandair passengers to combine flights on a single ticket, simplifying logistics and reducing risks like lost luggage or missed connections. For travelers, this means a smoother, less stressful journey with the ability to plan complex itineraries without worrying about logistical details.

Southwest Airlines, known for its competitive fares and friendly onboard service, adds another dimension to this collaboration. Passengers can benefit from perks like free checked baggage on higher fares or no-change-fee policies. Flexibility that could appeal to travelers seeking simplicity and savings.

For Icelandair, this partnership strengthens its position as a major transatlantic connectivity player. By offering connections to less-served U.S. destinations, the airline differentiates itself from traditional networks and attracts travelers seeking originality. A strategy that could inspire other carriers and redefine travel standards between Europe and America.

While baggage policies and connection terms aren’t yet specified, Icelandair and Southwest Airlines typically highlight attractive offers for customers. Flexible baggage options and competitive fares will likely be promoted to encourage early bookings.

What these new routes mean for your travel plans

For French and European travelers, these announcements represent an opportunity not to be missed. Whether you’re seeking a business trip to Madrid, a cultural getaway in Spain, or a discovery of America’s heartland with St. Louis, Icelandair and its partners offer flexible, innovative options. Here’s what these routes could change for your travel plans:

For business travelers: Madrid becomes more accessible with frequencies tailored to professional needs. The ability to connect to other European or U.S. cities via Icelandair’s Reykjavik hub simplifies trip planning. Airlines also emphasize onboard service quality, with dedicated workspaces and optimized connectivity—key for staying productive mid-flight.

For tourists: St. Louis offers an alternative to classic U.S. destinations. With its historic monuments, museums, and musical vibe, the city is a hidden gem. Travelers can easily extend their stay to other Midwest destinations like Chicago or Minneapolis via Southwest Airlines’ connections. An option that could appeal to itinerary seekers outside the beaten path.

For flexibility-seeking travelers: The frequencies for Madrid and St. Louis allow great freedom in trip planning. Whether you want a weekend round trip or a multi-destination circuit, Icelandair and its partners offer solutions for all needs. Practical schedules and simplified connection options reduce stress and optimize travel time.

Bookings for these new routes will open soon. Follow Icelandair’s official announcements or partner platforms to catch launch fares, often the most competitive. A strategy to adopt to fully benefit from this expansion and secure your tickets before prices rise.

With these new routes, Icelandair confirms its ambition to become a key player in international connectivity. Whether you’re planning a business trip, a leisure escape, or a discovery of America’s heartland, these announcements could redefine your travel plans for summer 2027.

Key takeaways before booking

While Icelandair and Southwest Airlines’ new routes are promising, several details remain to be clarified before booking. Here’s what you need to know:

Booking dates: Tickets for Madrid and St. Louis will likely go on sale in the coming months. Follow official announcements to catch the opening—launch fares are often the best deals, so be ready to book as soon as possible.

Baggage policies: Baggage allowances may vary by fare and service class. Icelandair and Southwest Airlines typically offer flexible options, but check conditions before booking. Higher fares often include free checked baggage.

Connections: Thanks to the Icelandair-Southwest partnership, passengers can combine flights on a single ticket. This simplifies trip planning, but verify connection terms, especially minimum layover times.

Service classes: Icelandair typically offers economy and business classes with flexible options for all budgets. Onboard menu and service details haven’t been announced yet, but the airline is renowned for its high-quality service.

In summary, Icelandair’s new Madrid and St. Louis routes for summer 2027 represent a unique opportunity for travelers seeking flexibility and originality. With tailored frequencies, strategic partnerships, and innovative travel options, these announcements could redefine your travel plans. Stay informed to catch bookings and fully enjoy these new destinations.

To follow Icelandair’s updates and explore all travel options, regularly check the airline’s official website or partner booking platforms.