San Juan to Buffalo (SJU-BUF): nonstop flights and award space

JetBlue Airways flies the SJU to BUF nonstop about 4 times a week. In the timetable below it flies as B6 634, scheduled at 4h 35m to 4h 42m for the 1,849 miles. 2LNR tracks award seats on JetBlue Airways across every SJU to BUF date, so you can see whether a seat exists before you move points.

Schedule last confirmed . Departure times come from 2LNR's schedule data; confirm with the airline before you book.

Updated .

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4
Flights a week, 4-week average
4h 35m to 4h 42m
Scheduled flight time
1,849 mi
Nonstop distance
Free
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San Juan to Buffalo flight schedule

Scheduled nonstop departures for SJU to BUF starting October 23, 2026, last checked against our schedule feed on October 18, 2026. Airlines retime and cancel flights, so confirm with the airline before you book.

Schedule data dated .

Scheduled nonstop departures from San Juan (SJU) to Buffalo (BUF)
Date Flight Airline Departs SJU Arrives BUF Duration Aircraft
B6 634JetBlue Airways18:1522:504h 35mAirbus A320
B6 634JetBlue Airways18:1522:504h 35mAirbus A320
B6 634JetBlue Airways18:1522:574h 42mAirbus A320
B6 634JetBlue Airways18:1522:574h 42mAirbus A320
B6 634JetBlue Airways18:1522:574h 42mAirbus A320
B6 634JetBlue Airways18:1522:574h 42mAirbus A320
B6 634JetBlue Airways19:1522:534h 38mAirbus A320

Showing all 7 scheduled SJU to BUF departures across 7 days with service, starting October 23, 2026. Later dates are on the interactive map.

Departure and arrival times are local at their own airport, so an arrival can fall on a different local date than the departure; the duration column is the true elapsed flying time. A dash means the airline hasn't filed that value in the schedule data we hold. Aircraft are the equipment the airline filed, named where the code pins down one type and shown as the family or the bare code where it doesn't. Swaps can happen up to departure.

See every SJU to BUF date on the interactive map

Aircraft on the San Juan to Buffalo nonstop

JetBlue Airways flies the Airbus A320 on every departure in the schedule table on this page. Each linked aircraft page shows where that airline schedules it. Airlines can swap aircraft up to departure.

Award seats on SJU to BUF departures

2LNR tracks award seats on JetBlue Airways, date by date. Open the calendar for San Juan to Buffalo to see whether a seat exists before you move points, the next 14 days free on every product and the full horizon on Pro.

JetBlue Airways award space was open on 7 of the 8 San Juan to Buffalo departure dates from October 19 to November 1 that 2LNR checked in the 7 days to October 19, 2026.

See real availability

Award seats by date on the SJU to BUF departures 2LNR tracks, checked against live inventory so you know what's open before you book.

Set an alert

Premium inventory turns over fast. Watch this route on Pro and 2LNR notifies you when space appears on a date you're tracking.

Plan on the map

See SJU to BUF on the interactive route map, with schedules, connections, and route statistics.

Airlines flying San Juan to Buffalo nonstop

Carriers operating SJU to BUF nonstop in the current schedule. Where 2LNR tracks the carrier, its departures show award space by date.

See SJU to BUF on the interactive map →

Frequently asked questions about SJU to BUF

How long is the flight from San Juan (SJU) to Buffalo (BUF)?
Scheduled flight times from San Juan (SJU) to Buffalo (BUF) run from 4h 35m to 4h 42m across the departures in the schedule table on this page. The nonstop covers about 1,849 miles, and airlines adjust scheduled times by season, so confirm with the airline before you book.
Which airlines fly nonstop from SJU to BUF?
JetBlue Airways is currently the only airline flying SJU to BUF nonstop. 2LNR tracks award seats on JetBlue Airways.
How many flights a week are there from SJU to BUF?
About 4 nonstop flights a week run between San Juan (SJU) and Buffalo (BUF) in the current schedule, operated by JetBlue Airways. Frequency shifts by season, and the schedule table on this page shows what is scheduled next.
What time do flights from SJU to BUF depart?
Scheduled SJU to BUF nonstops in the next 7 days with service leave between 18:15 and 19:15, local time at San Juan. The schedule table on this page lists every departure by date, with its arrival time and aircraft.
Which flights operate SJU to BUF nonstop?
JetBlue Airways flies B6 634 nonstop from San Juan (SJU) to Buffalo (BUF), the only flight number in the schedule table on this page. The table lists each date with its departure and arrival times and aircraft.
How do I check award availability on SJU to BUF?
Open the SJU to BUF route on the interactive map or the matrix to see award seats by date on JetBlue Airways, the next 14 days free and the full horizon on Pro. On Pro you can also set an alert on the route and 2LNR notifies you when space opens.

See SJU to BUF award space by date

See what's open by date on this route, the next 14 days free on every product and the full horizon on Pro.

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