$136+ 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 9/30. Fares are subject to change and may not be available on all flights or dates of travel.
SJU — BUF
Aug 1 — Aug 81
Round-trip
1 adult, Economy
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Find cheap flights from San Juan to Buffalo with Cheapflights
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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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheapflights Tip: The best prices from San Juan to Buffalo are usually found in September or February, booked 16 days in advance, depart on a Tuesday or Monday and return on a Thursday
Cheap flight deals from San Juan to Buffalo
Cheapest
Best
Last-minute
One-way
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 July 2, 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 July 2, 2026.
This SmartFares deal was found by Cheapflights users on 7/1. 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.
Fri 10/96:15 pm
SJU
- BUF
Nonstop4h 35m
JetBlue
Mon 10/128:00 am
BUF
- SJU
Nonstop4h 39m
JetBlue
Deal found 7/1![JetBlue logo]()
$290
This Cheapflightsfares deal was found by Cheapflights users on 6/28. 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 8/56:29 pm
SJU
- BUF
Nonstop4h 38m
JetBlue
Mon 8/106:00 am
BUF
- SJU
Nonstop4h 38m
JetBlue
Deal found 6/28![JetBlue logo]()
$297
This Faresmojo deal was found by Cheapflights users on 6/30. 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 Faresmojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/306:15 pm
SJU
- BUF
Nonstop4h 38m
JetBlue
Sun 10/47:00 am
BUF
- SJU
1 stop8h 23m
JetBlue
Deal found 6/30![JetBlue logo]()
$304
This Faresmojo deal was found by Cheapflights users on 6/30. 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 Faresmojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/246:29 pm
SJU
- BUF
Nonstop4h 38m
JetBlue
Mon 7/276:00 am
BUF
- SJU
Nonstop4h 34m
JetBlue
Deal found 6/30![JetBlue logo]()
$305
This Kiwi.com deal was found by Cheapflights users on 6/30. 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.
Tue 8/188:57 pm
SJU
- BUF
1 stop21h 12m
Frontier
Fri 8/2811:36 am
BUF
- SJU
2 stops37h 20m
Frontier
Deal found 6/30![Frontier logo]()
$311
This Southwest deal was found by Cheapflights users on 6/28. 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.
Tue 8/256:00 am
SJU
- BUF
1 stop6h 30m
Southwest
Sat 8/2910:40 am
BUF
- SJU
1 stop7h 25m
Southwest
Deal found 6/28![Southwest logo]()
$314
This Delta deal was found by Cheapflights users on 6/30. 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.
Mon 9/141:16 pm
SJU
- BUF
1 stop10h 56m
Delta
Sat 9/196:05 am
BUF
- SJU
1 stop10h 44m
Delta
Deal found 6/30![Delta logo]()
$316
This Southwest deal was found by Cheapflights users on 6/30. 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.
Tue 8/186:00 am
SJU
- BUF
1 stop6h 30m
Southwest
Fri 8/283:55 pm
BUF
- SJU
1 stop6h 55m
Southwest
Deal found 6/30![Southwest logo]()
$318
This American Airlines deal was found by Cheapflights users on 6/28. 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 9/242:22 pm
SJU
- BUF
1 stop9h 18m
American Airlines
Tue 9/295:30 am
BUF
- SJU
2 stops10h 10m
American Airlines
Deal found 6/28![American Airlines logo]()
$322
This American Airlines deal was found by Cheapflights users on 6/28. 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 10/812:13 pm
SJU
- BUF
1 stop10h 37m
American Airlines
Tue 10/136:51 pm
BUF
- SJU
1 stop16h 29m
American Airlines
Deal found 6/28![American Airlines logo]()
$327
This American Airlines deal was found by Cheapflights users on 6/28. 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 9/306:27 am
SJU
- BUF
2 stops11h 01m
American Airlines
Sun 10/47:51 pm
BUF
- SJU
1 stop15h 29m
American Airlines
Deal found 6/28![American Airlines logo]()
$328
This American Airlines deal was found by Cheapflights users on 7/1. 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 10/97:30 am
SJU
- BUF
1 stop9h 22m
American Airlines
Mon 10/127:53 pm
BUF
- SJU
1 stop16h 16m
American Airlines
Deal found 7/1![American Airlines logo]()
$329
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 July 2, 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 July 2, 2026.
This Southwest deal was found by Cheapflights users on 6/28. 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.
Tue 8/256:00 am
SJU
- BUF
1 stop6h 30m
Southwest
Sat 8/2910:40 am
BUF
- SJU
1 stop7h 25m
Southwest
Deal found 6/28![Southwest logo]()
$314
This Delta deal was found by Cheapflights users on 7/1. 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 9/241:16 pm
SJU
- BUF
1 stop10h 56m
Delta
Tue 9/296:05 am
BUF
- SJU
1 stop10h 44m
Delta
Deal found 7/1![Delta logo]()
$316
This Delta deal was found by Cheapflights users on 6/27. 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.
Sat 9/263:10 pm
SJU
- BUF
1 stop7h 26m
Delta
Sat 10/36:05 am
BUF
- SJU
1 stop10h 44m
Delta
Deal found 6/27![Delta logo]()
$316
This Southwest deal was found by Cheapflights users on 6/28. 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 10/85:30 am
SJU
- BUF
1 stop9h 50m
Southwest
Tue 10/132:25 pm
BUF
- SJU
2 stops9h 20m
Southwest
Deal found 6/28![Southwest logo]()
$339
This Delta deal was found by Cheapflights users on 6/27. 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 8/207:30 am
SJU
- BUF
1 stop11h 49m
Delta
Mon 8/247:00 am
BUF
- SJU
1 stop9h 33m
Delta
Deal found 6/27![Delta logo]()
$360
This Southwest deal was found by Cheapflights users on 6/27. 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 11/65:35 am
SJU
- BUF
2 stops9h 50m
Southwest
Thu 11/126:00 am
BUF
- SJU
2 stops10h 50m
Southwest
Deal found 6/27![Southwest logo]()
$387
This Delta deal was found by Cheapflights users on 6/28. 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.
Tue 8/41:19 pm
SJU
- BUF
1 stop11h 21m
Delta
Mon 8/103:53 pm
BUF
- SJU
1 stop7h 59m
Delta
Deal found 6/28![Delta logo]()
$360
This Southwest deal was found by Cheapflights users on 6/27. 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.
Tue 12/86:45 am
SJU
- BUF
1 stop6h 25m
Southwest
Sat 12/1212:50 pm
BUF
- SJU
1 stop7h 25m
Southwest
Deal found 6/27![Southwest logo]()
$389
Last-minute flights from San Juan to BuffaloDiscover last-minute flight deals from San Juan to Buffalo. Data last updated July 2, 2026 and is based on user searches.
Discover last-minute flight deals from San Juan to Buffalo. Data last updated July 2, 2026 and is based on user searches.
This Faresmojo deal was found by Cheapflights users on 6/30. 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 Faresmojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/246:29 pm
SJU
- BUF
Nonstop4h 38m
JetBlue
Mon 7/276:00 am
BUF
- SJU
Nonstop4h 34m
JetBlue
Deal found 6/30![JetBlue logo]()
$305
This Priceline deal was found by Cheapflights users on 6/28. 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.
Tue 8/43:10 am
SJU
- BUF
1 stop15h 56m
Multiple Airlines
Mon 8/106:00 am
BUF
- SJU
Nonstop4h 38m
Multiple Airlines
Deal found 6/28![Multiple Airlines logo]()
$331
This SmartFares deal was found by Cheapflights users on 7/1. 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.
Wed 8/56:29 pm
SJU
- BUF
Nonstop4h 38m
JetBlue
Mon 8/106:00 am
BUF
- SJU
Nonstop4h 38m
JetBlue
Deal found 7/1![JetBlue logo]()
$290
This Delta deal was found by Cheapflights users on 6/29. 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 8/67:30 am
SJU
- BUF
1 stop7h 43m
Delta
Mon 8/103:53 pm
BUF
- SJU
1 stop7h 59m
Delta
Deal found 6/29![Delta logo]()
$316
This Cheapflightsfares deal was found by Cheapflights users on 6/30. 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.
Fri 8/76:29 pm
SJU
- BUF
Nonstop4h 38m
JetBlue
Mon 8/106:00 am
BUF
- SJU
Nonstop4h 38m
JetBlue
Deal found 6/30![JetBlue logo]()
$342
This Kiwi.com deal was found by Cheapflights users on 6/30. 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.
Tue 8/188:57 pm
SJU
- BUF
1 stop21h 12m
Frontier
Fri 8/2811:36 am
BUF
- SJU
2 stops37h 20m
Frontier
Deal found 6/30![Frontier logo]()
$311
This Southwest deal was found by Cheapflights users on 6/30. 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.
Tue 8/186:00 am
SJU
- BUF
1 stop6h 30m
Southwest
Fri 8/283:55 pm
BUF
- SJU
1 stop6h 55m
Southwest
Deal found 6/30![Southwest logo]()
$318
This Priceline deal was found by Cheapflights users on 6/30. 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.
Tue 8/1812:11 pm
SJU
- BUF
1 stop29h 58m
Multiple Airlines
Fri 8/287:00 am
BUF
- SJU
Nonstop4h 38m
Multiple Airlines
Deal found 6/30![Multiple Airlines logo]()
$337
This Southwest deal was found by Cheapflights users on 6/29. 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.
Tue 8/186:00 am
SJU
- BUF
1 stop8h 20m
Southwest
Sat 8/223:30 pm
BUF
- SJU
1 stop6h 25m
Southwest
Deal found 6/29![Southwest logo]()
$339
This Delta deal was found by Cheapflights users on 6/28. 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 8/207:30 am
SJU
- BUF
1 stop11h 49m
Delta
Mon 8/247:00 am
BUF
- SJU
1 stop9h 33m
Delta
Deal found 6/28![Delta logo]()
$340
This Southwest deal was found by Cheapflights users on 6/28. 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.
Tue 8/256:00 am
SJU
- BUF
1 stop6h 30m
Southwest
Sat 8/2910:40 am
BUF
- SJU
1 stop7h 25m
Southwest
Deal found 6/28![Southwest logo]()
$314
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 July 2, 2026.
Search for one-way flight options from San Juan to Buffalo. Find affordable one-way fares based on user searches. Data last updated July 2, 2026.
This Kiwi.com deal was found by Cheapflights users on 7/2. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/304:39 pm
SJU
- BUF
2 stops19h 42m
Frontier
Deal found 7/2![Frontier logo]()
$136
This Kiwi.com deal was found by Cheapflights users on 7/1. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/294:39 pm
SJU
- BUF
2 stops19h 42m
Frontier
Deal found 7/1![Frontier logo]()
$137
This Kiwi.com deal was found by Cheapflights users on 7/1. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/15:12 pm
SJU
- BUF
2 stops19h 09m
Frontier
Deal found 7/1![Frontier logo]()
$138
This Kiwi.com deal was found by Cheapflights users on 7/2. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/24:39 pm
SJU
- BUF
2 stops19h 42m
Frontier
Deal found 7/2![Frontier logo]()
$142
This Kiwi.com deal was found by Cheapflights users on 7/2. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/25:37 pm
SJU
- BUF
2 stops40h 52m
Frontier
Deal found 7/2![Frontier logo]()
$143
This Kiwi.com deal was found by Cheapflights users on 6/27. 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.
Wed 9/234:39 pm
SJU
- BUF
2 stops43h 42m
Frontier
Deal found 6/27![Frontier logo]()
$145
This Kiwi.com deal was found by Cheapflights users on 6/29. 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 9/254:39 pm
SJU
- BUF
2 stops19h 42m
Frontier
Deal found 6/29![Frontier logo]()
$146
This SmartFares deal was found by Cheapflights users on 6/29. 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 8/126:29 pm
SJU
- BUF
Nonstop4h 38m
JetBlue
Deal found 6/29![JetBlue logo]()
$148
This Kiwi.com deal was found by Cheapflights users on 7/1. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/264:39 pm
SJU
- BUF
2 stops19h 42m
Frontier
Deal found 7/1![Frontier logo]()
$150
This Kiwi.com deal was found by Cheapflights users on 6/29. 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.
Tue 8/185:55 am
SJU
- BUF
2 stops28h 34m
Frontier
Deal found 6/29![Frontier logo]()
$152
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 July 2, 2026.
Round-trip from | $290 (SmartFares) |
|---|---|
One-way from | $136 (Kiwi.com) |
Popular in | November |
Cheapest in | September |
Average price | $329 |
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 July 2, 2026.
Use the filters below to find and compare flights from San Juan to Buffalo that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
San JuanBuffalo
SJU - BUF
SJUBUF
San Juan Luis Munoz Marin Intl
Tue 8/25
6:00 am-12:30 pm
1 stop6h 30m
Buffalo
Sat 8/29
10:40 am-6:05 pm
1 stop7h 25m
$314
San JuanBuffalo
SJU - BUF
SJUBUF
San Juan Luis Munoz Marin Intl
Thu 9/24
1:16 pm-12:12 am
1 stop10h 56m
Buffalo
Tue 9/29
6:05 am-4:49 pm
1 stop10h 44m
$316
San JuanBuffalo
SJU - BUF
SJUBUF
San Juan Luis Munoz Marin Intl
Sat 9/26
3:10 pm-10:36 pm
1 stop7h 26m
Buffalo
Sat 10/3
6:05 am-4:49 pm
1 stop10h 44m
$316
San JuanBuffalo
SJU - BUF
SJUBUF
San Juan Luis Munoz Marin Intl
Thu 10/8
5:30 am-3:20 pm
1 stop9h 50m
Buffalo
Tue 10/13
2:25 pm-11:45 pm
2 stops9h 20m
$339
San JuanBuffalo
SJU - BUF
SJUBUF
San Juan Luis Munoz Marin Intl
Thu 8/20
7:30 am-7:19 pm
1 stop11h 49m
Buffalo
Mon 8/24
7:00 am-4:33 pm
1 stop9h 33m
$360
San JuanBuffalo
SJU - BUF
SJUBUF
San Juan Luis Munoz Marin Intl
Tue 8/4
1:19 pm-12:40 am
1 stop11h 21m
Buffalo
Mon 8/10
3:53 pm-11:52 pm
1 stop7h 59m
$360
San JuanBuffalo
SJU - BUF
SJUBUF
San Juan Luis Munoz Marin Intl
Fri 11/6
5:35 am-2:25 pm
2 stops9h 50m
Buffalo
Thu 11/12
6:00 am-5:50 pm
2 stops10h 50m
$387
Quickest round-trip
San JuanBuffalo
SJU - BUF
SJUBUF
San Juan Luis Munoz Marin Intl
Tue 12/8
6:45 am-12:10 pm
1 stop6h 25m
Buffalo
Sat 12/12
12:50 pm-9:15 pm
1 stop7h 25m
$389
Cheapest one-way
San JuanBuffalo
SJU - BUF
SJUBUF
San Juan Luis Munoz Marin Intl
Fri 12/25
8:30 am-8:31 pm
2 stops13h 01m
$157
Quickest one-way
San JuanBuffalo
SJU - BUF
SJUBUF
San Juan Luis Munoz Marin Intl
Mon 8/24
6:27 pm-11:05 pm
Nonstop4h 38m
$163
Showing 1-10 of 18 resultsSorted by cheapest first
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
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 $68). Flying from San Juan to Buffalo in March is currently the most expensive (average of $215). 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.
What is the cheapest time of day to fly from SJU to BUF?
Find hourly flight availability from San Juan to Buffalo. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 2, 2026.
When flying from San Juan to Buffalo, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
How much does it cost to fly round-trip from San Juan to Buffalo?
How far ahead should I book a flight from San Juan to Buffalo?
Booking 14 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.
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 July 2, 2026.
Read through reviews of airlines operating flights from San Juan to Buffalo, such as Southwest,Delta, andAmerican Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Overall
7.9
Food
7.0
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Crew
8.6
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Overall
7.9
Food
7.0
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Crew
8.6
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Overall
7.9
Food
7.0
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Crew
8.6
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Overall
7.9
Food
7.0
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Crew
8.6
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Overall
7.9
Food
7.0
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Crew
8.6
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Overall
7.9
Food
7.0
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Crew
8.6
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
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
Amherst
Batavia
Williamsville
Orchard Park
Eden
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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 July 2, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$102 | Average$294 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$124 | Average$231 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$195 | Average$395 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$215 | Average$483 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$239 | Average$367 | FlexibilityNo cancel fee | On-time62% |