Cheap Flights from Buffalo, NY to San Juan from $114

On Cheapflightsplus.com you will find 88 connecting flights from Buffalo to San Juan. You can compare airfare deals from 4 airlines and multiple travel sites from $114, book and save on cheap plane tickets and last minute offers. Also check out BUF-SJU flight schedule to find best flight time, convenient departure and arrival airports.

Flight Information

Below we will explain in detail what the flights cost on the destination from Buffalo to San Juan depends on and how to choose the most interesting flight option for you.

Distance between Buffalo and San Juan is 2976 miles. Time difference between the cities is 1h. Airplanes depart 06:00 to 21:37 from 1 Buffalo airport and arrive 06:00 to 21:37 to 2 San Juan airports. Average flight time is 16h 57m.

  • The fastest flight 6h 29m
  • Average flight time 16h 57m
  • The earliest flight 06:00
  • The latest flight 21:37
  • Distance 1850 ml

The cheapest months to travel to San Juan are september (from 114 $), july (from 115 $), august (from 130 $).

The most expensive months are november (from 608 $), january (from 173 $), october (from 173 $).

What is the lowest airfare Buffalo to San Juan?

The cheapest plane ticket found by our users is $114. This airfare is for economy class on one-way F91351 flight by Frontier Airlines for September 27, 2025 which leaves Niagara in Buffalo at 19:11 am and arrives at San Juan Luis Munoz Marin Intl at 02:34.

Economy class
$114
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Business class
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First class
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Flight Schedule Buffalo (New York) to San Juan

06:00 — 13:45
7h 45m flight time
Find flight
from$255
06:00 — 07:22 Buffalo — Newark
UA2357 United Airlines
2h 22m stop
09:44 — 13:45 Newark — San Juan
UA1556 United Airlines
08:50 — 08:59+1day
24h 9m flight time
Find flight
from$133
08:50 — 11:38 Buffalo — Orlando
F91691 Frontier Airlines
18h 22m stop
06:00 — 08:59 Orlando — San Juan
F92250 Frontier Airlines
08:50 — 00:28+1day
15h 38m flight time
Find flight
from$140
08:50 — 11:38 Buffalo — Orlando
F91691 Frontier Airlines
9h 49m stop
21:26 — 00:32 Orlando — San Juan
F91746 Frontier Airlines
09:56 — 00:46+1day
14h 50m flight time
Find flight
from$115
09:56 — 11:37 Buffalo — Raleigh
F92979 Frontier Airlines
9h 38m stop
21:15 — 00:46 Raleigh — San Juan
F91226 Frontier Airlines
10:12 — 02:50+1day
16h 38m flight time
Find flight
from$130
08:50 — 11:38 Buffalo — Orlando
F91691 Frontier Airlines
10h 53m stop
23:40 — 02:39 Orlando — San Juan
F94726 Frontier Airlines
10:12 — 19:08
8h 56m flight time
Find flight
from$173
11:19 — 14:18 Buffalo — Orlando
F91691 Frontier Airlines
3h 2m stop
22:48 — 02:38 Orlando — San Juan
F93506 Frontier Airlines
10:50 — 23:57+1day
13h 7m flight time
Find flight
from$255
10:50 — 11:45 Buffalo — Chicago
UA606 United Airlines
2h 35m stop
14:20 — 17:54 Chicago — Newark
UA2649 United Airlines
1h 59m stop
19:53 — 23:57 Newark — San Juan
UA1543 United Airlines
10:50 — 23:57+1day
13h 7m flight time
Find flight
from$255
10:50 — 11:45 Buffalo — Chicago
UA606 United Airlines
1h 24m stop
13:09 — 16:35 Chicago — Newark
UA1332 United Airlines
3h 18m stop
19:53 — 23:57 Newark — San Juan
UA1543 United Airlines
19:11 — 02:34+1day
7h 23m flight time
Find flight
from$114
21:12 — 00:03 Buffalo — Orlando
F91351 Frontier Airlines
1h 40m stop
23:40 — 02:39 Orlando — San Juan
F94726 Frontier Airlines
19:11 — 07:59+1day
12h 48m flight time
Find flight
from$119
19:11 — 22:00 Buffalo — Orlando
F91351 Frontier Airlines
7h 5m stop
05:05 — 07:59 Orlando — San Juan
F91824 Frontier Airlines
19:50 — 15:55+1day
20h 5m flight time
Find flight
from$134
17:04 — 19:50 Buffalo — Tampa
F91243 Frontier Airlines
14h 6m stop
12:42 — 15:55 Tampa — San Juan
F92216 Frontier Airlines
21:12 — 09:04+1day
11h 52m flight time
Find flight
from$128
21:12 — 00:03 Buffalo — Orlando
F91351 Frontier Airlines
6h 2m stop
06:05 — 09:04 Orlando — San Juan
F92250 Frontier Airlines
21:37 — 02:39+2days
29h 2m flight time
Find flight
from$145
21:07 — 23:58 Buffalo — Orlando
F93261 Frontier Airlines
23h 12m stop
23:40 — 02:39 Orlando — San Juan
F94726 Frontier Airlines
21:37 — 00:32+2days
26h 55m flight time
Find flight
from$193
21:07 — 23:58 Buffalo — Orlando
F93261 Frontier Airlines
20h 58m stop
21:26 — 00:32 Orlando — San Juan
F91746 Frontier Airlines
21:37 — 09:04+1day
11h 27m flight time
Find flight
from$219
21:07 — 23:58 Buffalo — Orlando
F93261 Frontier Airlines
5h 37m stop
06:05 — 09:04 Orlando — San Juan
F92250 Frontier Airlines
Full flight schedule will help you in detecting at what time planes fly from Buffalo to San Juan. You can also specify the concrete flights and airlines on the route and how long the flight actually is. Use the calendar for today, tomorrow or other specific date as some flights are available only on certain days of the week.
*Departure and arrival times - local. Updated on October 23, 2025.

Popular Airlines on the Route

The flight Buffalo — San Juan is served by 4 regular airlines and 2 low-cost airlines. Most of the flights on this route are operated by Frontier Airlines - 15 departures per week at the price of from $ 114 . And the most expensive tickets are offered by United Airlines airline - from $ 1517.

Direct flights

There’re no direct flights on this route. Try flights with stops.

Connecting Flights

There are 88 flights with layovers on the route. The fastest connecting flight is UA4291 by United Airlines takes 6h 29m and the cheapest is F91351 by Frontier Airlines for $114.

  • F9 - Frontier Airlines
    from $114
    Find
  • AV - Avianca
    from $472
    Find
  • SY - Sun Country Airlines
    from $321
    Find
  • UA - United Airlines
    from $255
    Find
See more connecting flights

Airports

You can fly from Buffalo to San Juan from 1 airports (Niagara).

Buffalo airports

  • Niagara-BUF
    from $114
    Find

San Juan airports

  • Isla Grande-SIG
    Find
  • Luis Munoz Marin Intl-SJU
    Find

How to book a plane ticket yourself?

How to book an air ticket yourself?
  • Fill in the search parameters — cities of departure and destination, departure and return dates and click «Find flights»
  • Select the best flight that you like. Please, check the airports of departure and arrival. Select the best fare, but pay attention to the following flight details - airports of departure and arrival, flight duration and layovers. Please use filters and sort to find the best flight.
  • Click «Buy» when you are ready — our system will redirect you to the site that sells the selected flight ticket.
  • Fill in all passenger and payment information — passport and contact information, please double check all passengers’ names and make a payment for your itinerary.
  • That's it — you will receive an email with your e-ticket usually within 10 minutes after your flight is confirmed. Please, print the e-ticket and have it with you at the airport. You would need to have only a passport and/or a required form of ID to travel. Please, check your Visa requirements if you travel outside of the United States or Canada.

    To find a plane ticket, please select dates.

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