Buffalo (BUF) to San Juan (SJU)

1,849mi
2,976 km1,607 nm

Flight time

≈ 4h 30m

Bearing

152° SE

Buffalo (BUF) to San Juan (SJU) is 1,849 miles (2,976 km) as the crow flies — the great-circle baseline most distance-based mileage programs credit.

Route map: BUF → SJUBUFSJU

Look up a route, or build a trip

Change the airports, or add stops for a multi-leg trip.

What actually flies BUF–SJU

Filed traffic data

In May 2026, JetBlue Airways was the only carrier flying nonstop BUF–SJU; the Airbus A320 was the most common aircraft at 100% of departures; flights ran 79% full.

Departures

36

May 2026

Seats

5,832

both directions

Passengers

4,581

both directions

Load factor

78.5%

RPM ÷ ASM

Who flies BUF–SJU?

JetBlue Airways was the only carrier to fly nonstop BUF–SJU in May 2026 (36 departures).

  • B6

    JetBlue Airways

    36 departures · 5,832 seats

    78.5%

    Load

What plane flies BUF–SJU?

In May 2026, the Airbus A320 flew 100% of BUF–SJU departures.

How has BUF–SJU traffic changed?

Nonstop BUF–SJU departures rose from 6 in March 2026 to 36 in May 2026.

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

  • March 2026

    6 departures · 753 passengers

    77.5%

    Load

  • April 2026

    34 departures · 3,938 passengers

    71.5%

    Load

  • May 2026

    36 departures · 4,581 passengers

    78.5%

    Load

By direction

Each direction is filed separately — they rarely match.

BUF → SJU

80.3% full

18 departures · 2,340 passengers

SJU → BUF

76.8% full

18 departures · 2,241 passengers

Nonstop BUF–SJU traffic has been filed since 2026.

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

The airports

BUF

Buffalo

US

Buffalo Niagara International Airport

Coordinates

42.94°N, 78.73°W

Hemisphere

N · W

SJU

San Juan

PR

Luis Munoz Marin International Airport

Coordinates

18.44°N, 66.00°W

Hemisphere

N · W

Frequently asked

How far is Buffalo (BUF) from San Juan (SJU)?

BUF to SJU is 1,849 miles (2,976 km / 1,607 nautical miles) measured great-circle — the shortest path over the surface of the Earth.

How long is the flight from BUF to SJU?

A nonstop covers the 1,849-mile great-circle distance in roughly 4h 30m of block time, before winds. Actual schedules vary a few percent by direction and aircraft.

What plane flies BUF–SJU?

In May 2026, the Airbus A320 flew the largest share of departures (100.0%).

What mileage do I earn flying BUF–SJU?

Distance-based programs credit off the 1,849-mile great-circle figure, then apply your fare-class earning rate. Revenue-based programs credit off the fare instead.

Keep exploring

Every route below is its own page.

Popular long-haul routes