$96+ Cheap flights from San Juan to Buffalo (BUF)
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/1. Fares are subject to change and may not be available on all flights or dates of travel.
SJU — BUF
Mar 5 — Mar 121
1 adult, Economy
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1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Cheapest flights from San Juan to BuffaloExplore the most affordable flight options available from San Juan to Buffalo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 3, 2026.
Explore the most affordable flight options available from San Juan to Buffalo. Find the lowest fares from popular airlines and budget airlines, with prices last updated on February 3, 2026.
This Expedia deal was found by Cheapflights users on 2/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/66:20 pm
SJU
- BUF
Nonstop4h 25m
Multiple Airlines
Thu 4/94:47 pm
BUF
- SJU
1 stop7h 18m
Multiple Airlines
Deal found 2/1![Multiple Airlines logo]()
$113
This Frontier deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/253:53 am
SJU
- BUF
1 stop8h 41m
Frontier
Mon 3/24:45 pm
BUF
- SJU
1 stop8h 40m
Frontier
Deal found 2/2![Frontier logo]()
$192
This Expedia deal was found by Cheapflights users on 2/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/253:53 am
SJU
- BUF
1 stop8h 41m
Multiple Airlines
Sat 2/287:30 pm
BUF
- SJU
1 stop7h 41m
Multiple Airlines
Deal found 2/3![Multiple Airlines logo]()
$202
This Delta deal was found by Cheapflights users on 2/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/276:02 pm
SJU
- BUF
1 stop7h 12m
Delta
Mon 3/211:51 am
BUF
- SJU
1 stop11h 05m
Delta
Deal found 2/3![Delta logo]()
$212
This SmartFares deal was found by Cheapflights users on 2/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/46:15 pm
SJU
- BUF
Nonstop4h 49m
JetBlue
Thu 5/77:39 pm
BUF
- SJU
1 stop6h 28m
JetBlue
Deal found 2/1![JetBlue logo]()
$223
This Priceline deal was found by Cheapflights users on 2/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/255:25 pm
SJU
- BUF
1 stop19h 09m
Frontier
Sun 3/110:47 am
BUF
- SJU
1 stop13h 07m
Frontier
Deal found 2/1![Frontier logo]()
$227
This Southwest deal was found by Cheapflights users on 2/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/276:30 am
SJU
- BUF
1 stop6h 25m
Southwest
Sun 3/12:40 pm
BUF
- SJU
1 stop9h 25m
Southwest
Deal found 2/3![Southwest logo]()
$228
This American Airlines deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/258:40 am
SJU
- BUF
1 stop10h 14m
American Airlines
Sun 3/16:33 am
BUF
- SJU
1 stop15h 58m
American Airlines
Deal found 2/2![American Airlines logo]()
$232
This American Airlines deal was found by Cheapflights users on 2/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/275:02 pm
SJU
- BUF
1 stop6h 47m
American Airlines
Sun 3/16:33 am
BUF
- SJU
1 stop15h 58m
American Airlines
Deal found 2/1![American Airlines logo]()
$237
This Cheapflightsfares deal was found by Cheapflights users on 2/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/96:15 pm
SJU
- BUF
Nonstop4h 49m
JetBlue
Sat 5/167:39 pm
BUF
- SJU
1 stop6h 28m
JetBlue
Deal found 2/3![JetBlue logo]()
$238
This Priceline deal was found by Cheapflights users on 2/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/96:15 pm
SJU
- BUF
Nonstop4h 49m
Multiple Airlines
Sat 5/1611:44 am
BUF
- SJU
1 stop11h 04m
Multiple Airlines
Deal found 2/1![Multiple Airlines logo]()
$239
Best flights from San Juan to BuffaloDiscover carefully curated flight deals from San Juan to Buffalo that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated February 3, 2026.
Discover carefully curated flight deals from San Juan to Buffalo that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated February 3, 2026.
This Delta deal was found by Cheapflights users on 2/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/57:00 am
SJU
- BUF
1 stop8h 56m
Delta
Mon 3/94:47 pm
BUF
- SJU
1 stop6h 28m
Delta
Deal found 2/1![Delta logo]()
$212
This Southwest deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/233:45 pm
SJU
- BUF
1 stop7h 30m
Southwest
Mon 4/274:00 pm
BUF
- SJU
1 stop7h 40m
Southwest
Deal found 2/2![Southwest logo]()
$212
This American Airlines deal was found by Cheapflights users on 1/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/258:40 am
SJU
- BUF
1 stop10h 14m
American Airlines
Sun 3/16:00 am
BUF
- SJU
1 stop16h 40m
American Airlines
Deal found 1/31![American Airlines logo]()
$232
This Priceline deal was found by Cheapflights users on 2/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/96:15 pm
SJU
- BUF
Nonstop4h 49m
Multiple Airlines
Sat 5/1611:44 am
BUF
- SJU
1 stop11h 04m
Multiple Airlines
Deal found 2/1![Multiple Airlines logo]()
$239
This SmartFares deal was found by Cheapflights users on 2/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/268:10 am
SJU
- BUF
1 stop7h 00m
JetBlue
Sat 5/307:20 am
BUF
- SJU
Nonstop4h 15m
JetBlue
Deal found 2/3![JetBlue logo]()
$258
This Delta deal was found by Cheapflights users on 2/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/276:02 pm
SJU
- BUF
1 stop7h 12m
Delta
Mon 3/211:51 am
BUF
- SJU
1 stop11h 05m
Delta
Deal found 2/1![Delta logo]()
$212
This Southwest deal was found by Cheapflights users on 2/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/276:30 am
SJU
- BUF
1 stop6h 25m
Southwest
Sun 3/12:40 pm
BUF
- SJU
1 stop9h 25m
Southwest
Deal found 2/3![Southwest logo]()
$228
Last-minute flights from San Juan to BuffaloDiscover last-minute flight deals from San Juan to Buffalo. Data last updated February 3, 2026 and is based on user searches.
Discover last-minute flight deals from San Juan to Buffalo. Data last updated February 3, 2026 and is based on user searches.
This Priceline deal was found by Cheapflights users on 2/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/133:00 pm
SJU
- BUF
1 stop9h 56m
Multiple Airlines
Fri 2/2010:42 am
BUF
- SJU
1 stop15h 11m
Multiple Airlines
Deal found 2/1![Multiple Airlines logo]()
$247
This Cheapflightsfares deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/182:45 pm
SJU
- BUF
1 stop7h 31m
JetBlue
Wed 2/257:35 pm
BUF
- SJU
1 stop7h 16m
JetBlue
Deal found 2/2![JetBlue logo]()
$261
This Frontier deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/253:53 am
SJU
- BUF
1 stop8h 41m
Frontier
Mon 3/24:45 pm
BUF
- SJU
1 stop8h 40m
Frontier
Deal found 2/2![Frontier logo]()
$192
This Expedia deal was found by Cheapflights users on 2/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/253:53 am
SJU
- BUF
1 stop8h 41m
Multiple Airlines
Sat 2/287:30 pm
BUF
- SJU
1 stop7h 41m
Multiple Airlines
Deal found 2/3![Multiple Airlines logo]()
$202
This Priceline deal was found by Cheapflights users on 2/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/255:25 pm
SJU
- BUF
1 stop19h 09m
Frontier
Sun 3/110:47 am
BUF
- SJU
1 stop13h 07m
Frontier
Deal found 2/1![Frontier logo]()
$227
This American Airlines deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/258:40 am
SJU
- BUF
1 stop10h 14m
American Airlines
Sun 3/16:33 am
BUF
- SJU
1 stop15h 58m
American Airlines
Deal found 2/2![American Airlines logo]()
$232
This Delta deal was found by Cheapflights users on 2/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/276:02 pm
SJU
- BUF
1 stop7h 12m
Delta
Mon 3/211:51 am
BUF
- SJU
1 stop11h 05m
Delta
Deal found 2/3![Delta logo]()
$212
This Southwest deal was found by Cheapflights users on 2/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/276:30 am
SJU
- BUF
1 stop6h 25m
Southwest
Sun 3/12:40 pm
BUF
- SJU
1 stop9h 25m
Southwest
Deal found 2/3![Southwest logo]()
$228
This American Airlines deal was found by Cheapflights users on 2/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/275:02 pm
SJU
- BUF
1 stop6h 47m
American Airlines
Sun 3/16:33 am
BUF
- SJU
1 stop15h 58m
American Airlines
Deal found 2/1![American Airlines logo]()
$237
This American Airlines deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/45:42 pm
SJU
- BUF
1 stop6h 56m
American Airlines
Sun 3/86:33 am
BUF
- SJU
1 stop15h 58m
American Airlines
Deal found 2/2![American Airlines logo]()
$262
This American Airlines deal was found by Cheapflights users on 2/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/126:33 am
SJU
- BUF
1 stop16h 08m
American Airlines
Tue 3/1712:44 pm
BUF
- SJU
2 stops10h 14m
American Airlines
Deal found 2/1![American Airlines logo]()
$257
One-way flights from San Juan to BuffaloSearch for one-way flight options from San Juan to Buffalo. Find affordable one-way fares based on user searches. Data last updated February 3, 2026.
Search for one-way flight options from San Juan to Buffalo. Find affordable one-way fares based on user searches. Data last updated February 3, 2026.
This Frontier deal was found by Cheapflights users on 2/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/13:08 am
SJU
- BUF
1 stop7h 41m
Frontier
Deal found 2/1![Frontier logo]()
$96
This SmartFares deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/83:30 am
SJU
- BUF
1 stop7h 59m
JetBlue
Deal found 2/2![JetBlue logo]()
$97
This Super.com deal was found by Cheapflights users on 2/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/128:00 am
SJU
- BUF
1 stop7h 17m
JetBlue
Deal found 2/1![JetBlue logo]()
$105
This Delta deal was found by Cheapflights users on 2/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/115:27 pm
SJU
- BUF
1 stop6h 47m
Delta
Deal found 2/3![Delta logo]()
$106
This JetBlue deal was found by Cheapflights users on 2/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/2611:59 pm
SJU
- BUF
1 stop10h 36m
JetBlue
Deal found 2/1![JetBlue logo]()
$107
This American Airlines deal was found by Cheapflights users on 2/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/116:00 am
SJU
- BUF
2 stops10h 52m
American Airlines
Deal found 2/1![American Airlines logo]()
$116
This Mytrip deal was found by Cheapflights users on 2/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/1711:07 am
SJU
- BUF
1 stop8h 14m
Frontier
Deal found 2/1![Frontier logo]()
$117
This Southwest deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/185:15 am
SJU
- BUF
1 stop6h 25m
Southwest
Deal found 2/2![Southwest logo]()
$122
This Cheapflightsfares deal was found by Cheapflights users on 2/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/106:15 am
SJU
- BUF
1 stop9h 15m
JetBlue
Deal found 2/3![JetBlue logo]()
$126
This JetBlue deal was found by Cheapflights users on 2/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/36:10 am
SJU
- BUF
1 stop7h 50m
JetBlue
Deal found 2/3![JetBlue logo]()
$127
This SmartFares deal was found by Cheapflights users on 2/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/106:20 pm
SJU
- BUF
Nonstop4h 25m
JetBlue
Deal found 2/2![JetBlue logo]()
$130
This Kiwi.com deal was found by Cheapflights users on 2/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/276:00 am
SJU
- BUF
2 stops30h 05m
Frontier
Deal found 2/3![Frontier logo]()
$135
Find flight deals from San Juan to Buffalo
Discover tips and strategies to find the most affordable flight options for your journey from San Juan (PR1) to Buffalo (BUF). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated February 3, 2026.
Round-trip from | $113 (Expedia) |
|---|---|
One-way from | $96 (Frontier) |
Popular in | December |
Cheapest in | September |
Average price | $258 |
Cheapflights Fare Finder
Customize your flight search to find flights from San Juan to Buffalo that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated February 3, 2026.
Use the filters below to find and compare flights from San Juan to Buffalo that are best for you.
Fly from
San Juan
Fly to
Buffalo
Route
Depart
Return
Price
San JuanBuffalo
SJU - BUF
SJUBUF
San Juan Luis Munoz Marin Intl
Thu 3/5
7:00 am-2:56 pm
1 stop8h 56m
Buffalo
Mon 3/9
4:47 pm-11:15 pm
1 stop6h 28m
$212
San JuanBuffalo
SJU - BUF
SJUBUF
San Juan Luis Munoz Marin Intl
Thu 4/23
3:45 pm-11:15 pm
1 stop7h 30m
Buffalo
Mon 4/27
4:00 pm-11:40 pm
1 stop7h 40m
$212
San JuanBuffalo
SJU - BUF
SJUBUF
San Juan Luis Munoz Marin Intl
Fri 2/27
6:02 pm-12:14 am
1 stop7h 12m
Buffalo
Mon 3/2
11:51 am-11:56 pm
1 stop11h 05m
$212
San JuanBuffalo
SJU - BUF
SJUBUF
San Juan Luis Munoz Marin Intl
Fri 2/27
6:30 am-11:55 am
1 stop6h 25m
Buffalo
Sun 3/1
2:40 pm-1:05 am
1 stop9h 25m
$228
San JuanBuffalo
SJU - BUF
SJUBUF
San Juan Luis Munoz Marin Intl
Wed 2/25
8:40 am-5:54 pm
1 stop10h 14m
Buffalo
Sun 3/1
6:00 am-11:40 pm
1 stop16h 40m
$232
San JuanBuffalo
SJU - BUF
SJUBUF
San Juan Luis Munoz Marin Intl
Sat 5/9
6:15 pm-11:04 pm
Nonstop4h 49m
Buffalo
Sat 5/16
11:44 am-10:48 pm
1 stop11h 04m
$239
San JuanBuffalo
SJU - BUF
SJUBUF
San Juan Luis Munoz Marin Intl
Tue 5/26
8:10 am-3:10 pm
1 stop7h 00m
Buffalo
Sat 5/30
7:20 am-11:35 am
Nonstop4h 15m
$258
San JuanBuffalo
SJU - BUF
SJUBUF
San Juan Luis Munoz Marin Intl
Wed 2/11
7:45 am-10:31 pm
2 stops15h 46m
$106
San JuanBuffalo
SJU - BUF
SJUBUF
San Juan Luis Munoz Marin Intl
Fri 4/24
5:35 am-12:00 pm
1 stop6h 25m
$106
San JuanBuffalo
SJU - BUF
SJUBUF
San Juan Luis Munoz Marin Intl
Thu 4/16
1:25 pm-12:49 am
1 stop11h 24m
$106
Showing 1-10 of 17 results
Best time to book a flight from San Juan to Buffalo
Have a flexible travel schedule? Discover the best time to fly to Buffalo from San Juan with our price prediction graph.
PR1-BUF
SJU-BUF
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from San Juan to Buffalo
PR1-BUF
SJU-BUF
How far ahead should I book a flight from San Juan to Buffalo?
Use this chart to determine the optimal time to book a round-trip flight from San Juan to Buffalo. Price data was last updated on January 30, 2026.
Booking 71 days in advance of your planned departure date is, on average, the best time to get cheap flights from San Juan to Buffalo. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
What is the cheapest month to book a flight from San Juan to Buffalo?
Currently, September is the cheapest month in which you can book a flight from San Juan to Buffalo (average of $118). Flying from San Juan to Buffalo in October is currently the most expensive (average of $225). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
Reviews of airlines servicing Buffalo
Get insights into the airlines that provide service to Buffalo. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Buffalo. Reviews last updated February 3, 2026.
Read through reviews of airlines operating flights from San Juan to Buffalo, such as Southwest, Delta, and American Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Comfort
8.0
Entertainment
7.5
Food
7.0
Overall
8.0
Boarding
8.1
Crew
8.6
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Comfort
8.0
Entertainment
7.5
Food
7.0
Overall
8.0
Boarding
8.1
Crew
8.6
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Comfort
8.0
Entertainment
7.5
Food
7.0
Overall
8.0
Boarding
8.1
Crew
8.6
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Comfort
8.0
Entertainment
7.5
Food
7.0
Overall
8.0
Boarding
8.1
Crew
8.6
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Comfort
8.0
Entertainment
7.5
Food
7.0
Overall
8.0
Boarding
8.1
Crew
8.6
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Comfort
8.0
Entertainment
7.5
Food
7.0
Overall
8.0
Boarding
8.1
Crew
8.6
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Related info for your journey
Find useful and relevant information for your journey from San Juan to Buffalo. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Buffalo?
Book flights to Buffalo if you plan to visit one of these locationsLockport
Cheektowaga
Batavia
Williamsville
Orchard Park
Eden
Amherst
West Seneca
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Top 5 airlines flying from San Juan to Buffalo
Discover the top 5 airlines that operate flights from San Juan to Buffalo. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated February 3, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$80 | Average$291 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$124 | Average$213 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$211 | Average$400 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$215 | Average$390 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$239 | Average$361 | FlexibilityNo cancel fee | On-time62% |