Nashville (BNA) to Buffalo (BUF)

633mi
1,018 km550 nm

Flight time

≈ 2h 04m

Bearing

39° NE

Nashville (BNA) to Buffalo (BUF) is 633 miles (1,018 km) as the crow flies — the great-circle baseline most distance-based mileage programs credit.

Route map: BNA → BUFBNABUF

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What actually flies BNA–BUF

Filed traffic data

In July 2026, Southwest Airlines operated the most departures, one of 3 carriers flying nonstop BNA–BUF; the Boeing 737-700 was the most common aircraft at 38% of departures; flights ran 95% full.

Departures

65

July 2026

Seats

10,076

both directions

Passengers

9,620

both directions

Load factor

95.5%

RPM ÷ ASM

Who flies BNA–BUF?

Southwest Airlines operated the most nonstop BNA–BUF departures in July 2026 (62), one of 3 carriers on the route.

What plane flies BNA–BUF?

In July 2026, the Boeing 737-700 flew 38% of BNA–BUF departures — more than any other aircraft type.

How has BNA–BUF traffic changed?

Nonstop BNA–BUF departures rose from 64 in August 2025 to 65 in July 2026.

Monthly nonstop BNA–BUF traffic, trailing 12 months through July 2026. Bars scale to the busiest month; months with no filed service show as zero.

  • August 2025

    64 departures · 9,332 passengers

    90.5%

    Load

  • September 2025

    61 departures · 8,219 passengers

    83.2%

    Load

  • October 2025

    62 departures · 8,356 passengers

    86.5%

    Load

  • November 2025

    65 departures · 7,481 passengers

    70.8%

    Load

  • December 2025

    64 departures · 7,330 passengers

    69.5%

    Load

  • January 2026

    61 departures · 6,296 passengers

    66.2%

    Load

  • February 2026

    56 departures · 5,965 passengers

    71.4%

    Load

  • March 2026

    65 departures · 7,703 passengers

    77.9%

    Load

  • April 2026

    60 departures · 7,640 passengers

    77.5%

    Load

  • May 2026

    64 departures · 8,143 passengers

    78.1%

    Load

  • June 2026

    60 departures · 8,380 passengers

    87.8%

    Load

  • July 2026

    65 departures · 9,620 passengers

    95.5%

    Load

By direction

Each direction is filed separately — they rarely match.

BUF → BNA

95.1% full

33 departures · 4,458 passengers

BNA → BUF

95.8% full

32 departures · 5,162 passengers

Nonstop BNA–BUF traffic has been filed since 2025.

Source: US DOT BTS Form 41 T-100 Segment (All Carriers). Data through July 2026; filings from 2025. Public domain (US Government work).

The airports

BNA

Nashville

US

Nashville International Airport

Coordinates

36.12°N, 86.68°W

Hemisphere

N · W

BUF

Buffalo

US

Buffalo Niagara International Airport

Coordinates

42.94°N, 78.73°W

Hemisphere

N · W

Frequently asked

How far is Nashville (BNA) from Buffalo (BUF)?

BNA to BUF is 633 miles (1,018 km / 550 nautical miles) measured great-circle — the shortest path over the surface of the Earth.

How long is the flight from BNA to BUF?

A nonstop covers the 633-mile great-circle distance in roughly 2h 04m of block time, before winds. Actual schedules vary a few percent by direction and aircraft.

What plane flies BNA–BUF?

In July 2026, the Boeing 737-700 flew the largest share of departures (38.5%), followed by the Boeing 737 MAX 8 (30.8%).

What mileage do I earn flying BNA–BUF?

Distance-based programs credit off the 633-mile great-circle figure, then apply your fare-class earning rate. Revenue-based programs credit off the fare instead.

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