$97+ 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 2/4. Fares are subject to change and may not be available on all flights or dates of travel.
SJU — BUF
Feb 19 — Feb 261
1 adult, Economy
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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 January 20, 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 January 20, 2026.
This Expedia deal was found by Cheapflights users on 1/20. 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 2/44:36 pm
SJU
- BUF
1 stop27h 28m
Frontier
Sat 2/712:29 pm
BUF
- SJU
1 stop10h 30m
Frontier
Deal found 1/20![Frontier logo]()
$203
This Mytrip deal was found by Cheapflights users on 1/19. 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.
Wed 3/45:25 pm
SJU
- BUF
1 stop19h 14m
Frontier
Mon 3/99:25 pm
BUF
- SJU
1 stop12h 32m
Frontier
Deal found 1/19![Frontier logo]()
$207
This Delta deal was found by Cheapflights users on 1/19. 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 3/93:56 pm
BUF
- SJU
1 stop8h 03m
Delta
Deal found 1/19![Delta logo]()
$212
This Expedia deal was found by Cheapflights users on 1/19. 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.
Tue 5/195:15 pm
SJU
- BUF
1 stop6h 40m
JetBlue
Tue 5/2612:25 pm
BUF
- SJU
1 stop7h 38m
JetBlue
Deal found 1/19![JetBlue logo]()
$213
This CheapOair deal was found by Cheapflights users on 1/19. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/147:54 pm
SJU
- BUF
1 stop15h 55m
Multiple Airlines
Wed 2/183:00 pm
BUF
- SJU
1 stop7h 59m
Multiple Airlines
Deal found 1/19![Multiple Airlines logo]()
$225
This United Airlines deal was found by Cheapflights users on 1/19. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/181:00 am
SJU
- BUF
2 stops8h 53m
United Airlines
Tue 5/265:50 pm
BUF
- SJU
2 stops11h 40m
United Airlines
Deal found 1/19![United Airlines logo]()
$232
This American Airlines deal was found by Cheapflights users on 1/20. 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
Mon 3/26:00 am
BUF
- SJU
1 stop9h 12m
American Airlines
Deal found 1/20![American Airlines logo]()
$238
This JetBlue deal was found by Cheapflights users on 1/18. 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 5/195:15 pm
SJU
- BUF
1 stop6h 40m
JetBlue
Mon 5/257:20 am
BUF
- SJU
Nonstop4h 15m
JetBlue
Deal found 1/18![JetBlue logo]()
$239
This Expedia deal was found by Cheapflights users on 1/19. 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.
Fri 2/1311:50 pm
SJU
- BUF
1 stop10h 49m
JetBlue
Wed 2/183:00 pm
BUF
- SJU
1 stop7h 59m
JetBlue
Deal found 1/19![JetBlue logo]()
$240
This United Airlines deal was found by Cheapflights users on 1/19. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/38:10 am
SJU
- BUF
1 stop7h 04m
United Airlines
Sat 2/72:49 pm
BUF
- SJU
2 stops14h 22m
United Airlines
Deal found 1/19![United Airlines logo]()
$247
This Expedia deal was found by Cheapflights users on 1/19. 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.
Fri 3/611:59 pm
SJU
- BUF
1 stop10h 36m
JetBlue
Wed 3/116:00 am
BUF
- SJU
1 stop7h 34m
JetBlue
Deal found 1/19![JetBlue logo]()
$248
This American Airlines deal was found by Cheapflights users on 1/20. 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.
Sat 5/96:00 am
SJU
- BUF
1 stop9h 29m
American Airlines
Sat 5/1610:44 am
BUF
- SJU
1 stop11h 21m
American Airlines
Deal found 1/20![American Airlines logo]()
$251
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 January 20, 2026.
Round-trip from | $203 (Expedia) |
|---|---|
One-way from | $97 (Expedia) |
Popular in | December |
Cheapest in | September |
Average price | $316 |
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 January 20, 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
6:02 pm-12:14 am
1 stop7h 12m
Buffalo
Tue 3/10
12:07 pm-11:15 pm
1 stop11h 08m
$212
San JuanBuffalo
SJU - BUF
SJUBUF
San Juan Luis Munoz Marin Intl
Thu 4/23
6:15 am-3:53 pm
1 stop9h 38m
Buffalo
Mon 4/27
7:00 am-4:23 pm
1 stop9h 23m
$212
San JuanBuffalo
SJU - BUF
SJUBUF
San Juan Luis Munoz Marin Intl
Tue 5/19
5:15 pm-11:55 pm
1 stop6h 40m
Buffalo
Tue 5/26
12:25 pm-8:03 pm
1 stop7h 38m
$213
San JuanBuffalo
SJU - BUF
SJUBUF
San Juan Luis Munoz Marin Intl
Tue 5/19
7:40 am-4:54 pm
1 stop9h 14m
Buffalo
Tue 5/26
5:50 pm-5:30 am
2 stops11h 40m
$232
San JuanBuffalo
SJU - BUF
SJUBUF
San Juan Luis Munoz Marin Intl
Tue 5/19
5:15 pm-11:55 pm
1 stop6h 40m
Buffalo
Mon 5/25
7:20 am-11:35 am
Nonstop4h 15m
$239
San JuanBuffalo
SJU - BUF
SJUBUF
San Juan Luis Munoz Marin Intl
Fri 2/13
11:50 pm-9:39 am
1 stop10h 49m
Buffalo
Wed 2/18
3:00 pm-11:59 pm
1 stop7h 59m
$240
San JuanBuffalo
SJU - BUF
SJUBUF
San Juan Luis Munoz Marin Intl
Tue 2/3
8:10 am-2:14 pm
1 stop7h 04m
Buffalo
Sat 2/7
2:49 pm-6:11 am
2 stops14h 22m
$247
San JuanBuffalo
SJU - BUF
SJUBUF
San Juan Luis Munoz Marin Intl
Sat 5/9
6:00 am-3:29 pm
1 stop9h 29m
Buffalo
Sat 5/16
10:44 am-10:05 pm
1 stop11h 21m
$251
San JuanBuffalo
SJU - BUF
SJUBUF
San Juan Luis Munoz Marin Intl
Sat 2/14
7:00 am-2:56 pm
1 stop8h 56m
Buffalo
Wed 2/18
12:05 pm-11:58 pm
1 stop10h 53m
$256
San JuanBuffalo
SJU - BUF
SJUBUF
San Juan Luis Munoz Marin Intl
Wed 3/18
10:45 am-8:53 pm
1 stop10h 08m
$105
Showing 1-10 of 18 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.
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
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 16, 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 January 20, 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
Food
7.0
Boarding
8.1
Entertainment
7.5
Crew
8.6
Overall
8.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Comfort
8.0
Food
7.0
Boarding
8.1
Entertainment
7.5
Crew
8.6
Overall
8.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Comfort
8.0
Food
7.0
Boarding
8.1
Entertainment
7.5
Crew
8.6
Overall
8.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Comfort
8.0
Food
7.0
Boarding
8.1
Entertainment
7.5
Crew
8.6
Overall
8.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Comfort
8.0
Food
7.0
Boarding
8.1
Entertainment
7.5
Crew
8.6
Overall
8.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Comfort
8.0
Food
7.0
Boarding
8.1
Entertainment
7.5
Crew
8.6
Overall
8.0
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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Alternative routes for San Juan to Buffalo
See prices for flight routes from nearby airports that may be better suited for you.
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 January 20, 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$246 | Average$402 | FlexibilityNo cancel fee | On-time62% |