Southwest Airlines Powers a New Travel Growth Wave Across the United States With Daily Des Moines to Nashville Flights, Seasonal Phoenix Expansion and Greater Airport Connectivity Ahead of 2027

Written By: Ankita Sarmah

Ankita Sarmah

A passionate storyteller and aspiring journalist, Ankita Sarmah is currently pursuing a Master’s in English at DU while exploring the evolving landscape of journalism. With two years of practical experience, she has developed a strong ability to transform ideas, observations, and experiences into engaging narratives that connect with readers. Her journey combines academic knowledge with real-world reporting, allowing her to explore diverse fields such as culture, travel, and lifestyle through a creative and insightful perspective. Driven by curiosity and a passion for meaningful storytelling, Ankita strives to create fresh, authentic, and impactful content that informs, inspires, and leaves a lasting impression. For her, every story is more than words — it is an experience crafted to engage, connect, and resonate with audiences.

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July 17, 2026 15:45 GMT+5:30

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Southwest Airlines is expanding domestic travel opportunities in the United States by adding a new daily nonstop connection between Des Moines International Airport (DSM) and Nashville International Airport (BNA) from March 2027, driven by growing passenger demand, increased route opportunities and the upcoming transformation of Des Moines Airport with its new terminal opening. The new service will provide travellers with more convenient flight choices between Iowa and Tennessee while strengthening Southwest Airlines’ network at DSM, where additional Phoenix and continued Chicago services will further improve connectivity. The route expansion also highlights the airport’s future growth potential as it prepares for a new era of aviation development and enhanced passenger experiences.

Southwest Airlines is expanding travel connectivity across the United States by introducing a new daily nonstop route between Des Moines International Airport (DSM) in Iowa and Nashville International Airport (BNA) in Tennessee from March 2027, giving travellers more convenient domestic flight options while supporting the future growth plans of Des Moines International Airport.

The new service will create another important connection between two growing American cities and will provide passengers with increased flexibility when travelling for business, leisure, family visits and regional tourism. The route expansion will also strengthen Southwest Airlines’ presence at DSM while adding more competition and choice for travellers currently using existing services between Des Moines and Nashville.

The announcement comes at an important time for Des Moines International Airport as the facility prepares for the opening of its new terminal in January 2027. The new terminal development is expected to increase airport capacity, improve passenger experience and create opportunities for additional airline growth and route expansion in the coming years.

Southwest Airlines Creates New Travel Link Between Iowa and Tennessee

The new Southwest Airlines service will operate daily between Des Moines and Nashville beginning in March 2027, adding another major travel connection within the United States domestic aviation network.

The route will provide passengers from central Iowa with direct access to Nashville, one of America’s fastest-growing travel destinations known for its music industry, entertainment attractions, business activity and tourism appeal. At the same time, travellers from Tennessee will gain easier access to Des Moines and the wider Iowa region.

Before Southwest Airlines enters the route, nonstop flights between Des Moines and Nashville are already operated by Allegiant Air. The addition of Southwest will increase airline choice on the connection and provide passengers with more options when selecting schedules, fares and travel preferences.

For travellers, additional nonstop services can reduce dependence on connecting flights and help shorten overall journey times. Direct routes are particularly valuable for leisure travellers planning short domestic breaks, business passengers requiring efficient connections and families seeking easier travel between regions.

The introduction of this service reflects the continued recovery and expansion of domestic air travel in the United States, where airlines are focusing on strengthening routes between growing metropolitan areas and regional airports.

New Route Marks First Expansion Ahead of Des Moines Airport Terminal Opening

The Southwest Airlines announcement represents the first new route revealed ahead of the planned opening of Des Moines International Airport’s new terminal in January 2027.

The terminal project is designed to prepare DSM for future passenger growth by increasing operational capacity and creating a more modern airport experience. The development is expected to support additional airline partnerships, improved facilities and stronger connectivity for travellers across Iowa and beyond.

Airport expansion projects often play a major role in attracting new routes because airlines require sufficient passenger facilities, operational capacity and infrastructure to support long-term growth. With the upcoming terminal opening, Des Moines International Airport is positioning itself for a new phase of aviation development.

The new Southwest Airlines route demonstrates how airport infrastructure improvements can help generate additional opportunities for regional connectivity. As passenger demand continues to evolve, modern terminals can provide airlines with the confidence to introduce new services and increase existing frequencies.

The expansion also highlights the importance of regional airports in supporting economic growth. Improved air connectivity can benefit tourism, business travel, investment activity and local communities by making destinations easier to access.

Des Moines Strengthens Domestic Travel Options With Southwest Expansion

The addition of the Des Moines–Nashville route forms part of Southwest Airlines’ wider service plans at Des Moines International Airport.

Alongside the new Nashville connection, Southwest Airlines plans to increase seasonal service between Des Moines and Phoenix Sky Harbor International Airport (PHX) to daily nonstop operations during March 2027.

The Phoenix route will provide travellers with another important connection to the southwestern United States, supporting tourism and seasonal travel demand. Phoenix is a major gateway for visitors seeking warm-weather destinations, outdoor experiences, business opportunities and connections throughout the western United States.

Southwest Airlines will also continue operating daily nonstop flights between Des Moines and Chicago Midway International Airport (MDW). The Chicago connection remains an important domestic link, supporting business and leisure travel between Iowa and one of America’s largest metropolitan areas.

Together, the Nashville, Phoenix and Chicago services will strengthen Southwest Airlines’ network at DSM and provide passengers with more direct travel opportunities.

Growing Demand Drives More Domestic Flight Connectivity

The expansion of Southwest Airlines services reflects a broader trend across the US aviation sector, where airlines are increasing focus on domestic routes connecting regional cities.

Travellers are increasingly seeking convenient nonstop flights that reduce travel time and simplify journeys. Direct connections between smaller and mid-sized cities can play an important role in improving accessibility while supporting tourism and economic activity.

Nashville has become one of the most popular destinations in the United States, attracting visitors through its entertainment industry, cultural attractions, restaurants, events and business opportunities. The new connection from Des Moines will provide Iowa travellers with easier access to the Tennessee city.

At the same time, Des Moines continues to grow as a business and tourism destination. The city serves as an important centre for industries including finance, insurance, agriculture and technology, creating demand for reliable air connectivity.

Improved links between Des Moines and other US destinations can support both inbound and outbound travel. Visitors arriving in Iowa through expanded air services can contribute to local tourism businesses, hotels, restaurants and attractions.

New Terminal Expected to Support Future Aviation Growth

The upcoming terminal at Des Moines International Airport is expected to become a major foundation for future aviation expansion in Iowa.

Modern airport facilities are increasingly important as passenger expectations continue to change. Travellers now look for efficient check-in processes, comfortable waiting areas, improved security facilities and better overall airport experiences.

The new terminal will provide additional capacity and help DSM accommodate future growth. It will also create a stronger platform for attracting new airline services and encouraging existing carriers to expand operations.

As airlines evaluate new routes, airport infrastructure remains a key factor in determining whether additional services can be successfully introduced. The combination of a growing regional market and improved facilities could help Des Moines attract further connectivity in the future.

The Southwest Airlines announcement is therefore viewed as an early indication of the opportunities that may emerge following the terminal opening.

Southwest Airlines and DSM Continue Focus on Future Travel Expansion

Southwest Airlines’ new Des Moines to Nashville service represents a significant step in expanding domestic travel options for passengers in Iowa.

The airline’s additional Phoenix seasonal frequency and continued Chicago service will further strengthen its presence at Des Moines International Airport, creating a broader network of nonstop connections for travellers.

For Des Moines International Airport, the new route highlights the potential impact of its upcoming terminal investment and demonstrates the airport’s continued efforts to attract new airline partnerships.

As the aviation industry continues to evolve, airports and airlines are focusing on routes that provide meaningful connections, support passenger demand and create long-term growth opportunities.

With the launch of the new daily nonstop Nashville service in March 2027, Southwest Airlines will provide travellers with another convenient option while contributing to the next stage of development for Des Moines International Airport.

Southwest Airlines is expanding US domestic travel connectivity by launching a new daily nonstop Des Moines to Nashville service in March 2027, giving travellers more flight choices while supporting the growth of Des Moines International Airport ahead of its new terminal opening. The route will strengthen links between Iowa and Tennessee and add greater convenience for passengers across the United States.

The expansion will help connect communities across the United States, strengthen domestic tourism links and support a more connected future for American air travel.