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

JetBlue Airways flies the BUF to SJU nonstop about 4 times a week. In the timetable below it flies as B6 635, scheduled at 4h 33m to 4h 50m for the 1,849 miles. 2LNR tracks award seats on JetBlue Airways across every BUF to SJU 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 33m to 4h 50m
Scheduled flight time
1,849 mi
Nonstop distance
Free
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Buffalo to San Juan flight schedule

Scheduled nonstop departures for BUF to SJU starting October 22, 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 Buffalo (BUF) to San Juan (SJU)
Date Flight Airline Departs BUF Arrives SJU Duration Aircraft
B6 635JetBlue Airways08:1512:544h 39mAirbus A320
B6 635JetBlue Airways08:1512:544h 39mAirbus A320
B6 635JetBlue Airways08:0012:504h 50mAirbus A320
B6 635JetBlue Airways08:0012:504h 50mAirbus A320
B6 635JetBlue Airways08:0012:504h 50mAirbus A320
B6 635JetBlue Airways08:0012:504h 50mAirbus A320
B6 635JetBlue Airways07:5513:284h 33mAirbus A320

Showing all 7 scheduled BUF to SJU departures across 7 days with service, starting October 22, 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 BUF to SJU date on the interactive map

Aircraft on the Buffalo to San Juan 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 BUF to SJU departures

2LNR tracks award seats on JetBlue Airways, date by date. Open the calendar for Buffalo to San Juan 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 Buffalo to San Juan 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 BUF to SJU 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 BUF to SJU on the interactive route map, with schedules, connections, and route statistics.

Airlines flying Buffalo to San Juan nonstop

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

See BUF to SJU on the interactive map →

Frequently asked questions about BUF to SJU

How long is the flight from Buffalo (BUF) to San Juan (SJU)?
Scheduled flight times from Buffalo (BUF) to San Juan (SJU) run from 4h 33m to 4h 50m 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 BUF to SJU?
JetBlue Airways is currently the only airline flying BUF to SJU nonstop. 2LNR tracks award seats on JetBlue Airways.
How many flights a week are there from BUF to SJU?
About 4 nonstop flights a week run between Buffalo (BUF) and San Juan (SJU) 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 BUF to SJU depart?
Scheduled BUF to SJU nonstops in the next 7 days with service leave between 07:55 and 08:15, local time at Buffalo. The schedule table on this page lists every departure by date, with its arrival time and aircraft.
Which flights operate BUF to SJU nonstop?
JetBlue Airways flies B6 635 nonstop from Buffalo (BUF) to San Juan (SJU), 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 BUF to SJU?
Open the BUF to SJU 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 BUF to SJU 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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