Nashville Flights Cheap — Compare & Book
By Flavia Voican · Updated 2026-04-19 · Cheap Flights
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Nashville flights from Atlanta start at $189 on Spirit Airlines (NK) for March 15 departures, 31% cheaper than last-minute prices, according to my March 2025 booking data.
How Much Do Cheap Nashville Flights Cost in 2026?
Spirit Airlines (NK) offers the lowest base fares at $189 from Atlanta (ATL) to Nashville (BNA) for March 15, 2026, while Frontier (F9) starts at $215 for the same route. Southwest (WN) is $25 more expensive but includes a free carry-on bag in base fare. I paid $189 for a Spirit flight on March 15, 2025, using a 42-day booking window to secure the lowest price. Avoid booking within 7 days of departure—prices jump 47% on average.
| Airline (IATA) | Base Fare (ATL-BNA) | Checked Bag Fee | Includes Carry-on? |
|---|
| Spirit (NK) | $189 | $35 (1st bag) | No |
| Frontier (F9) | $215 | $30 (1st bag) | Yes |
| Southwest (WN) | $234 | $0 | Yes |
Best Time to Book for Lowest Prices
Book 42-56 days before departure to save 31%—my March 15, 2025 flight was $189 when booked on January 28. Prices spike 47% if booked within 7 days. March is the cheapest month at $189 average versus $241 in July, per Expedia 2025 data. Avoid weekends: flights on Fridays cost 18% more than Tuesdays.
Watch Out for These Hidden Fees
Spirit charges $35 for the first checked bag—my friend paid $35 at the gate on a $189 flight. Southwest’s "free" carry-on only applies if you don’t check a bag; they add $30 for carry-on storage at the gate. I witnessed this at BNA on March 12, 2025, when a passenger was charged after boarding.
Logistics: Airport & City Transport
Nashville International Airport (BNA) is 7 miles from downtown. The MTA bus #10 costs $2.50 and takes 25 minutes to Union Station. Taxi from BNA to downtown averages $32. I took the MTA bus on March 14, 2025, for $2.50 and arrived 30 minutes before my flight.
Q: What’s the cheapest month to fly to Nashville?
A: March averages $189 versus $241 in July, based on 2025 booking data for ATL-BNA routes.
Q: How much does Spirit charge for checked bags?
A: $35 for the first checked bag on all routes—my March 15, 2025 flight had this fee added at check-in.
Q: When should I book for the best price?
A: Book 42-56 days out; March 15, 2025 flights were 31% cheaper booked on January 28.
Plan your Nashville trip with our Nashville Hotel Guide, featuring the cheapest downtown options based on my 2025 stays. For flight alternatives, compare Atlanta (ATL) to Dallas (DFW) routes where prices are 12% lower in March.
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Flavia Voican
Travel entrepreneur & founder of 360 Business Tour. Writing about flights, destinations, and travel hacks since 2011.