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Cheap flights Buffalo — San Juan

Buffalo (BUF, US) San Juan (SJU, PR)
from $107 2 969 km ~4h 3 flights found 2 airlines cheapest on Friday
Reverse route
How many travellers?
Adults
12+ years
1
Children
2–11 years
0
Infants
under 2
0
Choose your departure date
Cheapest: $107 on 18.12.2026
Prices shown are from searches by other travellers over the last 24 hours. Missing a date? Click any day — we'll find tickets anyway.
November 2026
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December 2026
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January 2027
Mo
Tu
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Prices found for 2 of 90 days. Prices update as more travellers search. Click any date to search live.
Depart
—
Return
—
Cheapest flights found
18 Dec 2026, Fri
Frontier Airlines F9 1243
17:47
BUF Buffalo Niagara International Airport
23:43
SJU Luis Munoz Marin International Airport
5h 56m 1 stop
Farehutz
$107
View this ticket
18 Dec 2026, Fri
jetBlue B6 635
15:00
BUF Buffalo Niagara International Airport
19:48
SJU Luis Munoz Marin International Airport
4h 48m Direct
Farehutz
$143
View this ticket
07 Jan 2027, Thu
jetBlue B6 85
14:00
BUF Buffalo Niagara International Airport
19:57
SJU Luis Munoz Marin International Airport
5h 57m 1 stop
Kiwi.com
$222
View this ticket
Route characteristics
Distance
2 969 km
Flight time
4h
Time difference
+1h
Minimum price
from $107 (18.12.2026)
Average price
$165
Maximum price
$222
Cheapest day
Friday
Departure airports (1)
BUF Buffalo Niagara International Airport
Arrival airports (1)
SJU Luis Munoz Marin International Airport
Airlines (2)
F9 Frontier Airlines B6 jetBlue
Agencies (2)
Farehutz Kiwi.com
Prices by day of week
Thursday
$222
avg $222
Friday
$107
avg $125
Cheapest
Price trend by month
December 2026
from $107
avg $125
2 flights
January 2027
from $222
avg $222
1 flights
Airlines — cheapest prices 2
Frontier Airlines
Frontier Airlines
Low-cost 1 flights · 1 days
$107
jetBlue
jetBlue
Low-cost 2 flights · 2 days
$143
Where to buy tickets 2
Farehutz
2 tickets · 1 days
from $107
Kiwi.com
1 tickets · 1 days
from $222
Airports

From — Buffalo (1)

  • BUF Buffalo Niagara International Airport

To — San Juan (1)

  • SJU Luis Munoz Marin International Airport
Other destinations from Buffalo
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IN
Atlanta
US · Hub
Baku
AZ
Batman
TR
Barcelona
ES · Hub
Boston
US
Budapest
HU
Baltimore
US
Chattanooga
US
Chicago
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Cleveland
US
Frequently asked questions about the route Buffalo — San Juan
How long is the flight from Buffalo to San Juan?
Approximate flight time — 4h. This is an average for a direct flight. With connections, the time may be longer.
What is the distance from Buffalo to San Juan?
The straight-line distance — 2 969 km.
How much do flights from Buffalo to San Juan cost?
The minimum price over 3 months — from $107 on 18.12.2026.
What is the average ticket price?
The average price — $165. Range: $107 — $222.
What is the time difference between Buffalo and San Juan?
The difference — +1h.
From which airports does Buffalo operate flights?
From Buffalo: BUF (Buffalo Niagara International Airport).
To which airports in San Juan do flights arrive?
To San Juan: SJU (Luis Munoz Marin International Airport).
Which airlines fly this route?
This route is served by 2 airlines: Frontier Airlines, jetBlue.
Are there direct flights?
Yes, there are direct flights. Minimum direct price — from $143. Total direct flights found: 1.
Which day of the week is cheapest?
The cheapest day of the week — Friday.
When is the best time to buy tickets?
Optimal — 1–3 months before departure. Check the calendar above — it shows the best dates.
How do I book flights?
Click "View this ticket" on any flight card — you'll be redirected to the booking page with this specific ticket pre-selected.
About the route Buffalo — San Juan

Flights Buffalo — San Juan is a popular route. The straight-line distance is 2 969 km. Flight time 4h. Time difference +1h.

From Buffalo (BUF) flights depart from 1 airport: BUF. To San Juan (SJU) — 1 arrival airport: SJU.

2 airlines operate on this route: Frontier Airlines, jetBlue.

The minimum price for the next 3 months — from $107 (18.12.2026). The cheapest dates are highlighted in the calendar above.

The average ticket price — $165, ranging from $107 to $222. Book 1–3 months in advance to get the best deals.

Cheapest day to fly — Friday.

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