Nashville International Airport (BNA) has become a launching pad for affordable travel across the United States. A growing lineup of budget carriers now connects Music City to dozens of domestic destinations, often at prices that leave traditional full-service airlines in the dust. Whether you’re chasing a beach getaway, a weekend in a major metro, or a quick trip to see family, understanding which low-cost airlines operate from Nashville—and how to navigate their unique pricing models—can put more money back in your pocket in 2025.

Why Budget Airlines Thrive at Nashville International Airport (BNA)

BNA’s strategic location in the heart of Middle Tennessee makes it an attractive hub for low-cost carriers. The airport has experienced a record-setting passenger boom in recent years, fueled by Nashville’s surging tourism industry and a fast-growing local population. Budget airlines have capitalized on this demand by adding new nonstop routes that bypass crowded legacy hubs. In many cases, these carriers operate out of BNA’s newer, more efficient concourses, helping keep turnaround times short and operational costs low—savings that are often passed on to travelers.

The competitive landscape at BNA also plays a role. With multiple discount airlines vying for the same leisure and budget-conscious flyers, fare wars are common. This means travelers who track routes carefully and are flexible with their travel dates can snag tickets that undercut even the most aggressive sales from larger airlines. The airport’s ongoing expansion projects, including a new terminal lobby and additional gates, signal that BNA is preparing for continued growth in low-cost service through 2025 and beyond.

Top Budget Airlines Operating in Nashville in 2025

Several ultra-low-cost and low-cost carriers call BNA home. Each comes with its own pricing philosophy, route network, and add-on fee structure. Here’s a breakdown of the most prominent options available right now.

Spirit Airlines

Spirit Airlines has cemented its place as one of the most aggressive low-fare carriers at Nashville. The airline’s unbundled pricing model means the base ticket covers little more than a seat and a personal item. Everything else—from a full-sized carry-on to a beverage in flight—costs extra. While that might seem like a barrage of fees, savvy travelers who pack light and book directly through Spirit’s site often walk away with fares that are startlingly cheap compared to traditional carriers.

From BNA, Spirit offers nonstop flights to popular sun-and-fun destinations like Fort Lauderdale, Orlando, Las Vegas, Tampa, and Los Angeles. Seasonal routes sometimes pop up to Atlantic City or Myrtle Beach, so it’s worth checking the airline’s official route map as your travel dates approach. To maximize savings, join Spirit’s $9 Fare Club, which grants access to exclusive discounts on both fares and fees. Just be sure to factor in the total cost—luggage, seat selection, and even printing a boarding pass at the airport can add $20–$65 each way if you aren’t careful.

Frontier Airlines

Frontier Airlines has dramatically expanded its footprint at BNA over the last few years, positioning itself as a go-to for travelers seeking ultra-low base fares. Like Spirit, Frontier operates an à la carte pricing structure where you pay only for what you need. The airline’s Discount Den membership—an annual subscription that unlocks lower fares—can more than pay for itself after a single booking for frequent flyers.

Frontier connects Nashville to a broad mix of cities: Denver, Orlando, Philadelphia, Las Vegas, Miami, Raleigh-Durham, and San Juan, among others. The airline also serves smaller markets like Trenton, New Jersey, and Islip, New York, giving Tennesseans direct access to alternative airports that can bypass congested northeast hubs. When searching for flights, keep an eye on Frontier’s frequent fare sales, which occasionally drop base fares as low as $19 one-way on select routes. Just remember that the prices you see in sale banners typically apply only to tickets purchased for travel on off-peak days like Tuesdays and Wednesdays, and they almost never include taxes or optional add-ons.

Allegiant Air

Allegiant Air takes a different approach than Spirit or Frontier. Instead of building a complex web of daily flights, Allegiant focuses on a limited number of routes, often with only two or three departures per week. The airline’s entire business model revolves around linking smaller and mid-sized cities to popular vacation spots, and Nashville fits perfectly into that strategy. As a result, Allegiant’s nonstop destinations from BNA skew heavily toward leisure-heavy markets like Punta Gorda, Fort Lauderdale, Sarasota, and St. Pete–Clearwater in Florida, along with seasonal service to places like Savannah and Myrtle Beach.

Because Allegiant doesn’t fly every day, it pays to check schedules carefully. The airline frequently bundles airfare with hotel and car rental packages, which can yield extra discounts if you were planning to book those items separately anyway. Allegiant’s fee structure is straightforward: the base fare includes only a personal item; carry-ons and checked bags cost extra. However, Allegiant’s baggage fees are often slightly lower than those of Spirit or Frontier, and the airline’s focus on leisure travel means many passengers find the total out-of-pocket cost perfectly reasonable for a quick beach escape.

Southwest Airlines: A Budget-Friendly Full-Service Twist

Southwest Airlines doesn’t bill itself as an ultra-low-cost carrier, but for many Nashville travelers it delivers the kind of value that rivals any discounter. With a massive operation at BNA—Southwest is one of the airport’s largest carriers—the airline offers dozens of daily nonstop flights to cities like Baltimore, Chicago Midway, Dallas Love Field, Denver, Houston Hobby, and Phoenix. What makes Southwest a standout in the budget conversation is its two free checked bags and no change or cancellation fees. When you add up baggage fees that other low-cost carriers impose, Southwest often ends up being the cheapest option for travelers who can’t pack everything into a tiny personal item.

Southwest also runs regular fare sales, and its Low Fare Calendar lets you visually spot the cheapest days to fly. The airline’s open seating policy is unorthodox but helps keep boarding times quick. While Southwest doesn’t operate as bare-bones as Spirit or Frontier, its consistent value proposition and massive route map from Nashville make it an essential part of any fare comparison.

Other Low-Cost and Regional Options

Beyond the big four, several additional carriers bring budget-oriented service to BNA. Breeze Airways, which launched in 2021, now connects Nashville to underserved markets like Providence, Rhode Island; Akron-Canton, Ohio; and Hartford, Connecticut. Breeze operates a fleet of newer Airbus A220 aircraft on many routes, offering a more spacious seat than you might expect from a low-cost start-up. Its fare bundles—ranging from “Nice” to “Nicest”—allow you to pick a level of service that matches your willingness to pay for extras like a checked bag or seat selection.

Sun Country Airlines also makes seasonal appearances at BNA with flights to vacation destinations such as Minneapolis and warm-weather spots in Florida and the Caribbean. Additionally, regional operators like Republic Airways (flying under American Eagle or Delta Connection) occasionally offer competitive prices, though these are typically sold by the major carriers themselves. For truly dedicated budget hunting, it’s always a good idea to check which discount airlines are actively selling tickets at BNA’s official website, as new routes can appear with little fanfare.

How to Find the Cheapest Flights from Nashville

Knowing which airlines service BNA is only half the battle. To lock in the lowest possible fare, you need a strategy that blends technology, timing, and flexibility. Here are the techniques that work best in 2025.

Using Flight Comparison Tools

Aggregator sites like KAYAK, Google Flights, and Skyscanner pull pricing data from virtually every airline serving Nashville. These tools let you compare fares across Spirit, Frontier, Allegiant, Southwest, and the legacy carriers in seconds. When searching, always toggle between round-trip and two one-way tickets—sometimes pairing a discount airline for the outbound leg with a different carrier for the return yields a lower total cost. Google Flights’ calendar and price graph views are particularly useful for spotting date combinations that slash fares by 30% or more.

Setting Price Alerts

If you’re not ready to purchase immediately, price alerts are your best friend. Set them up for specific Nashville routes on KAYAK, Google Flights, or Hopper. The algorithms will email you whenever fares drop, often within hours of a sale launching. For the best results, track multiple destinations and date ranges simultaneously. Budget airlines frequently tweak pricing based on demand, and a fare that was $149 on Monday might fall to $79 by Wednesday afternoon. Alerts help you pounce on those dips before they vanish.

Best Times to Book and Fly

Booking in advance remains the golden rule for budget travel out of Nashville. For most domestic routes, the sweet spot is three to six weeks before departure. Last-minute deals are increasingly rare on low-cost carriers, as airlines now use algorithms that raise prices close to the travel date when seats are filling up. Flying on Tuesdays, Wednesdays, and Saturdays typically delivers the lowest fares, while Friday and Sunday departures command a premium. If your schedule allows, aim for early-morning or late-night flights, which tend to be cheaper and less crowded.

Uncovering Hidden Fees and Understanding Airline Policies

The advertised fare is just the starting point with most ultra-low-cost carriers. That $29 ticket can quickly double or triple once you add bags, seat selection, and onboard purchases. Getting a true picture of what you’ll pay requires a bit of homework upfront.

Baggage Policies That Sneak Up on You

Spirit and Frontier charge for both carry-on and checked luggage. A standard carry-on can cost between $30 and $65 each way depending on when you pay—at booking, during check-in, or at the gate. The cheapest option is always to pay for bags during the initial booking process. Allegiant likewise charges for any bag larger than a personal item, though its fees tend to be slightly lower. Southwest stands out by including two free checked bags and a carry-on, a benefit that can easily offset a higher base fare. Always measure your bag against the airline’s posted dimensions before you leave home; gate-checking an oversized personal item can lead to fees that erase all your upfront savings.

Seat Selection and Other Add-Ons

If you don’t pay for seat selection on a budget carrier, you’ll be assigned a random seat at check-in—often a middle seat near the back. Families traveling together may want to weigh the cost of selecting seats versus the possibility of being separated. Onboard, even a cup of coffee or a soft drink will cost extra on Spirit, Frontier, and Allegiant, so pack an empty water bottle to fill after security and bring your own snacks if you want to keep costs to the bare minimum. Printing a boarding pass at the airport can trigger a $25 charge on some airlines, so always check in online and have your mobile boarding pass ready.

BNA is undergoing a massive renovation designed to handle its swelling passenger numbers—but the construction can create confusion. Arrive early to give yourself plenty of time to navigate parking, security, and unexpected gate changes. The airport’s official website offers real-time updates on security wait times and parking availability. Economy lots are significantly cheaper than the terminal garage, and a shuttle runs continuously from the perimeter lots to the main terminal.

Once airside, you’ll find a solid mix of local and national dining options. Acme Feed & Seed and Whitt’s Barbecue offer a taste of Nashville, while standard grab-and-go kiosks help you stock up on road snacks without paying airplane prices. BNA also provides free Wi-Fi throughout the concourses, so you can stream or work while you wait. Charging stations are plentiful near gate areas, which is especially helpful given that budget airlines often board quickly and you won’t want a dead phone when it’s time to scan your mobile boarding pass.

Combining Your Flight with Nashville’s Top Attractions

If you’re flying into Nashville on a budget ticket, the money you saved on airfare can be redirected toward enjoying Music City itself. Many of the city’s most iconic experiences are walkable from downtown hotels or a short ride-share away.

Grand Ole Opry

No trip to Nashville is complete without a visit to the Grand Ole Opry. Live shows run multiple times a week, and backstage tours reveal the dressing rooms and stories behind country music’s biggest names. Tickets start at around $40, making it an affordable splurge if you’ve flown in on a $49 fare.

Country Music Hall of Fame and Museum

Located in the heart of downtown, the Country Music Hall of Fame houses everything from Elvis Presley’s gold Cadillac to interactive recording booths. Basic admission hovers around $28, and it’s easy to spend an entire afternoon here. Afterward, you can stroll across the street to the Frist Art Museum or grab a table at one of the honky-tonks on Broadway.

Ryman Auditorium and the Downtown District

The historic Ryman Auditorium still hosts major concerts and offers daily guided tours. Even if you don’t catch a show, the downtown entertainment district along Broadway bursts with live music pouring from every doorway—and most venues don’t charge a cover during the day. For those counting pennies, free attractions like the Tennessee State Museum and the Parthenon in Centennial Park add cultural weight without costing a dime.

Smart Planning Starts with the Right Research

Booking a budget flight from Nashville in 2025 isn’t about sacrificing comfort—it’s about making informed choices. By understanding which low-cost airlines serve BNA, what their fee structures truly cost, and how to time your purchase, you can routinely lock in fares that leave plenty of room in your travel budget for the experiences that matter most. Compare all your options, pack strategically, and remember that flexibility is the key to catching those rock-bottom prices that pop up on routes throughout the year.