Poland LOT Polish Airlines Unlocks Powerful New Warsaw to Zagreb and Ljubljana Route Expansion Driving Record Flight Growth Across Croatia Tourism Corridor in 2026

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LOT Polish Airlines will increase flight frequencies from Warsaw to Zagreb and Ljubljana from September 2026. The expansion adds three weekly flights to Zagreb and two weekly flights to Ljubljana, strengthening travel links between Poland, Croatia, and Slovenia while improving connections across Europe, North America, and Asia through Warsaw.

The Airlines Growing demand for travel across Central and Southeast Europe has prompted LOT Polish Airlines to significantly expand its operations between Warsaw and two of the region’s most important capitals, Zagreb and Ljubljana. Beginning in September 2026, the airline will introduce additional frequencies on both routes, offering travellers greater flexibility, improved connectivity, and more convenient scheduling options.

The move reflects the carrier’s broader strategy of strengthening its position across Europe while enhancing the role of Warsaw as a major connecting hub. As tourism, business travel, and regional mobility continue to recover and grow, airlines are increasingly focusing on markets that demonstrate strong and consistent passenger demand. Croatia and Slovenia have emerged as two such destinations, attracting both leisure travellers and corporate passengers throughout the year.

The new services underline LOT’s confidence in the long-term growth potential of Southeast Europe and reinforce its commitment to expanding travel opportunities across the region.

Additional Zagreb Flights Reflect Strong Demand from Croatia Market

LOT Polish Airlines currently operates up to twelve weekly flights between Warsaw and Zagreb. From September 2026, that number will increase to fifteen weekly services, making the route one of the airline’s most frequently operated connections in Southeast Europe.

The expansion will be achieved through the addition of new services on Tuesdays, Thursdays, and Sundays. Aircraft serving these flights will remain overnight in Zagreb before returning to Warsaw on Wednesdays, Fridays, and Mondays.

The additional operations will run under flight numbers LO609 and LO610, providing travellers with more departure options throughout the week. The increase is expected to benefit both direct passengers travelling between Poland and Croatia and international travellers connecting through Warsaw.

Demand for Croatia has remained strong in recent years. Zagreb continues to grow as both a tourism and business destination, attracting visitors from across Europe. Enhanced flight schedules allow passengers to plan shorter trips, weekend breaks, and business journeys more efficiently.

By increasing frequencies rather than simply adding seasonal capacity, LOT demonstrates confidence that demand will remain sustainable throughout the year.

Croatia Continues to Play a Major Role in LOT’s Regional Growth Strategy

Croatia remains one of the most important international markets within LOT’s European network. Beyond Zagreb, the airline maintains seasonal operations to several popular coastal destinations that attract substantial tourist traffic during the summer months.

Split currently receives four weekly LOT services, while Dubrovnik is connected with three flights per week. These routes support growing travel demand between Poland and Croatia’s Adriatic coast, one of Europe’s most popular holiday regions.

Depending on passenger demand and seasonal requirements, LOT deploys a combination of Embraer regional aircraft, Boeing 737-800 aircraft, and Boeing 737 MAX 8 jets across its Croatian operations. This flexible fleet strategy allows the airline to match capacity with market conditions while maintaining operational efficiency.

The scale of LOT’s commitment to Croatia is reflected in its long-term traffic performance. Between 2001 and 2025, more than one million passengers travelled on LOT flights serving Croatian destinations. During that period, the carrier operated over 16,000 flights connecting Poland with Zagreb, Dubrovnik, Split, Zadar, Rijeka, and Pula.

These figures highlight the importance of Croatia within LOT’s network and demonstrate the steady growth of travel demand between the two countries over the past two decades.

Ljubljana Receives Additional Frequencies as Slovenia Connectivity Expands

Alongside the Zagreb expansion, LOT will also strengthen services between Warsaw and Ljubljana. The airline currently operates up to nine weekly flights on the route, with schedules set to increase to eleven weekly services from September.

The expansion introduces new departures from Warsaw on Wednesdays and Fridays. Return services from Ljubljana will operate on Thursdays and Saturdays under flight numbers LO621 and LO622.

The additional frequencies provide travellers with greater flexibility when planning journeys between Poland and Slovenia. More flight options often translate into shorter travel times, improved connection opportunities, and increased convenience for both business and leisure passengers.

The route serves a broad range of travellers. Tourists visiting Slovenia’s natural landscapes, cultural attractions, and outdoor destinations benefit from increased accessibility. Business travellers gain more scheduling flexibility, while connecting passengers can access a wider range of destinations through Warsaw.

Enhanced frequencies also strengthen Slovenia’s connectivity with major international markets served by LOT, including destinations across Europe, North America, and Asia.

Warsaw Hub Continues to Strengthen Its International Position

The expansion of services to Zagreb and Ljubljana is closely linked to the growing importance of Warsaw as a strategic aviation hub. LOT has invested heavily in developing efficient connecting schedules that allow passengers from smaller European markets to access long-haul destinations through Poland.

Passengers travelling from Croatia and Slovenia can connect through Warsaw to numerous destinations across Europe while also gaining access to transatlantic and Asian services operated by LOT. This network structure provides travellers with additional options compared with direct point-to-point travel.

For LOT, hub development remains a key component of its growth strategy. Strong regional routes feed passengers into the wider network, improving aircraft utilisation and supporting long-haul operations.

The airline’s decision to increase frequencies rather than introduce entirely new routes suggests a focus on strengthening proven markets that already demonstrate healthy demand. By enhancing schedule density, LOT improves network efficiency while increasing customer choice.

This approach allows the carrier to compete more effectively within Europe’s increasingly competitive aviation market.

Tourism Growth Across Southeast Europe Supports Airline Expansion

The latest frequency increases also reflect broader tourism trends across Southeast Europe. Croatia and Slovenia continue to attract growing numbers of international visitors thanks to their diverse tourism offerings, cultural attractions, natural landscapes, and strong transport infrastructure.

Croatia remains one of Europe’s most recognised leisure destinations, drawing visitors to both its historic cities and Adriatic coastline. Meanwhile, Slovenia has steadily built its reputation as a destination focused on sustainability, outdoor tourism, wellness experiences, and cultural exploration.

Improved air connectivity plays a critical role in supporting tourism growth. More flights create greater accessibility, encourage short-break travel, and strengthen links between source markets and destination economies.

For tourism stakeholders, additional airline capacity often translates into increased visitor arrivals, stronger hotel performance, higher tourism spending, and broader economic benefits. Enhanced connectivity can also encourage business investment and support wider regional development objectives.

As airlines continue to evaluate growth opportunities across Europe, destinations with consistent passenger demand and strong tourism fundamentals are likely to attract further capacity increases.

A Decade of Service Strengthens Ljubljana Route Importance

The Warsaw-Ljubljana route recently celebrated its tenth anniversary, marking an important milestone in LOT’s relationship with the Slovenian market.

Over the past decade, the service has evolved into a key connection linking Slovenia with LOT’s international network. The route supports both inbound and outbound travel, facilitating tourism, business activity, and international connectivity.

Reaching a ten-year milestone demonstrates the stability and importance of the route within the airline’s broader European portfolio. Continued investment through additional frequencies suggests that LOT sees further growth potential in the market.

The decision to expand operations shortly after this anniversary highlights the airline’s confidence in future demand and reinforces its commitment to maintaining a strong presence in Slovenia.

As travel patterns continue to evolve, airlines increasingly focus on strengthening successful routes that deliver sustainable passenger growth. The Ljubljana expansion reflects that strategy while creating new opportunities for travellers and tourism industries in both countries.

LOT Positions for Continued Growth Across the Region

By expanding flights to both Zagreb and Ljubljana, LOT Polish Airlines is reinforcing its position as one of the leading carriers connecting Central and Southeast Europe. The new services provide additional travel flexibility, stronger connectivity through Warsaw, and improved access to international destinations.

The increased frequencies also demonstrate confidence in the long-term prospects of both markets. Croatia continues to represent a major tourism and aviation market for LOT, while Slovenia remains an important destination supporting both leisure and business travel.

As passenger demand continues to grow and regional travel networks become increasingly interconnected, airlines that invest in proven routes are likely to benefit from sustained traffic growth. LOT’s latest expansion reflects this strategy and further strengthens its role in connecting Europe through Warsaw.

With more flights, greater flexibility, and enhanced connectivity, travellers between Poland, Croatia, and Slovenia can expect improved travel options from September 2026 onwards, supporting both tourism development and broader regional mobility.