$129+ 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 6/2. Fares are subject to change and may not be available on all flights or dates of travel.
SJU — BUF
Jun 4 — Jun 111
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.Cheap flight deals from San Juan to Buffalo
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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 May 5, 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 May 5, 2026.
This Priceline deal was found by Cheapflights users on 5/3. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/296:00 am
SJU
- BUF
1 stop12h 59m
Frontier
Mon 6/87:52 pm
BUF
- SJU
1 stop17h 24m
Frontier
Deal found 5/3![Frontier logo]()
$212
This Frontier deal was found by Cheapflights users on 5/1. 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 5/83:03 am
SJU
- BUF
1 stop10h 49m
Frontier
Sat 5/162:47 pm
BUF
- SJU
1 stop7h 56m
Frontier
Deal found 5/1![Frontier logo]()
$233
This CheapOair deal was found by Cheapflights users on 4/30. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/49:00 am
SJU
- BUF
1 stop11h 04m
Frontier
Sun 6/78:49 pm
BUF
- SJU
1 stop20h 46m
Frontier
Deal found 4/30![Frontier logo]()
$238
This Priceline deal was found by Cheapflights users on 5/1. 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.
Thu 6/49:00 am
SJU
- BUF
1 stop11h 04m
Multiple Airlines
Mon 6/87:16 am
BUF
- SJU
Nonstop3h 55m
Multiple Airlines
Deal found 5/1![Multiple Airlines logo]()
$239
This JetBlue deal was found by Cheapflights users on 5/2. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/56:20 pm
SJU
- BUF
Nonstop4h 49m
JetBlue
Mon 6/87:16 am
BUF
- SJU
Nonstop3h 55m
JetBlue
Deal found 5/2![JetBlue logo]()
$247
This Booking.com deal was found by Cheapflights users on 5/1. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/156:09 pm
SJU
- BUF
1 stop19h 43m
Frontier
Fri 5/227:52 pm
BUF
- SJU
1 stop6h 16m
Frontier
Deal found 5/1![Frontier logo]()
$252
This Frontier deal was found by Cheapflights users on 5/1. 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.
Tue 6/238:00 am
SJU
- BUF
1 stop12h 17m
Frontier
Fri 6/267:57 pm
BUF
- SJU
1 stop11h 58m
Frontier
Deal found 5/1![Frontier logo]()
$256
This CheapOair deal was found by Cheapflights users on 5/1. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/48:00 am
SJU
- BUF
1 stop12h 16m
Frontier
Mon 8/107:57 pm
BUF
- SJU
1 stop27h 32m
Frontier
Deal found 5/1![Frontier logo]()
$258
This SmartFares deal was found by Cheapflights users on 5/1. 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 5/157:00 pm
SJU
- BUF
Nonstop4h 48m
JetBlue
Fri 5/227:16 am
BUF
- SJU
Nonstop3h 55m
JetBlue
Deal found 5/1![JetBlue logo]()
$262
This CheapOair deal was found by Cheapflights users on 5/1. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/83:03 am
SJU
- BUF
1 stop10h 49m
Multiple Airlines
Sat 5/169:19 am
BUF
- SJU
Nonstop3h 54m
Multiple Airlines
Deal found 5/1![Multiple Airlines logo]()
$265
This Priceline deal was found by Cheapflights users on 5/3. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/296:20 pm
SJU
- BUF
Nonstop4h 49m
Multiple Airlines
Sun 5/318:49 pm
BUF
- SJU
1 stop11h 15m
Multiple Airlines
Deal found 5/3![Multiple Airlines logo]()
$269
This Cheapflightsfares deal was found by Cheapflights users on 5/1. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/97:00 pm
SJU
- BUF
Nonstop4h 48m
JetBlue
Sat 5/169:19 am
BUF
- SJU
Nonstop3h 54m
JetBlue
Deal found 5/1![JetBlue logo]()
$270
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 May 5, 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 May 5, 2026.
This Frontier deal was found by Cheapflights users on 4/30. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/116:00 am
SJU
- BUF
1 stop12h 46m
Frontier
Sat 5/237:52 pm
BUF
- SJU
1 stop12h 12m
Frontier
Deal found 4/30![Frontier logo]()
$300
This JetBlue deal was found by Cheapflights users on 5/4. 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.
Fri 5/296:20 pm
SJU
- BUF
Nonstop4h 49m
JetBlue
Tue 6/22:41 pm
BUF
- SJU
1 stop8h 12m
JetBlue
Deal found 5/4![JetBlue logo]()
$345
This Delta deal was found by Cheapflights users on 5/1. 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 5/87:05 am
SJU
- BUF
1 stop7h 57m
Delta
Mon 5/116:15 am
BUF
- SJU
1 stop10h 18m
Delta
Deal found 5/1![Delta logo]()
$373
This United Airlines deal was found by Cheapflights users on 5/1. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/87:20 am
SJU
- BUF
1 stop6h 50m
United Airlines
Mon 5/1110:31 am
BUF
- SJU
2 stops10h 53m
United Airlines
Deal found 5/1![United Airlines logo]()
$412
This Kiwi.com deal was found by Cheapflights users on 5/1. 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.
Mon 6/225:38 pm
SJU
- BUF
1 stop17h 17m
Multiple Airlines
Wed 7/12:50 pm
BUF
- SJU
2 stops33h 47m
Multiple Airlines
Deal found 5/1![Multiple Airlines logo]()
$420
This American Airlines deal was found by Cheapflights users on 4/30. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/81:31 pm
SJU
- BUF
2 stops10h 28m
American Airlines
Thu 5/145:00 am
BUF
- SJU
1 stop17h 05m
American Airlines
Deal found 4/30![American Airlines logo]()
$430
This Frontier deal was found by Cheapflights users on 4/30. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/88:59 am
SJU
- BUF
1 stop9h 47m
Frontier
Thu 5/148:49 pm
BUF
- SJU
1 stop11h 15m
Frontier
Deal found 4/30![Frontier logo]()
$308
This CheapOair deal was found by Cheapflights users on 5/5. 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.
Thu 7/238:00 am
SJU
- BUF
1 stop12h 16m
Frontier
Mon 7/277:57 pm
BUF
- SJU
1 stop17h 23m
Frontier
Deal found 5/5![Frontier logo]()
$376
This Cheapflightsfares deal was found by Cheapflights users on 4/30. 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.
Mon 5/117:00 pm
SJU
- BUF
Nonstop4h 48m
JetBlue
Sat 5/237:16 am
BUF
- SJU
Nonstop3h 55m
JetBlue
Deal found 4/30![JetBlue logo]()
$420
This United Airlines deal was found by Cheapflights users on 5/2. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/81:00 am
SJU
- BUF
2 stops12h 18m
United Airlines
Sat 5/1611:02 am
BUF
- SJU
2 stops10h 22m
United Airlines
Deal found 5/2![United Airlines logo]()
$454
This eDestinos deal was found by Cheapflights users on 4/30. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/225:15 pm
SJU
- BUF
2 stops25h 44m
Frontier
Tue 6/2311:50 am
BUF
- SJU
2 stops12h 47m
Frontier
Deal found 4/30![Frontier logo]()
$397
This JetBlue deal was found by Cheapflights users on 5/4. 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 5/142:51 pm
SJU
- BUF
1 stop6h 50m
JetBlue
Mon 5/189:19 am
BUF
- SJU
Nonstop3h 54m
JetBlue
Deal found 5/4![JetBlue logo]()
$453
Last-minute flights from San Juan to BuffaloDiscover last-minute flight deals from San Juan to Buffalo. Data last updated May 5, 2026 and is based on user searches.
Discover last-minute flight deals from San Juan to Buffalo. Data last updated May 5, 2026 and is based on user searches.
This Frontier deal was found by Cheapflights users on 5/1. 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 5/83:03 am
SJU
- BUF
1 stop10h 49m
Frontier
Sat 5/162:47 pm
BUF
- SJU
1 stop7h 56m
Frontier
Deal found 5/1![Frontier logo]()
$233
This CheapOair deal was found by Cheapflights users on 5/1. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/83:03 am
SJU
- BUF
1 stop10h 49m
Multiple Airlines
Sat 5/169:19 am
BUF
- SJU
Nonstop3h 54m
Multiple Airlines
Deal found 5/1![Multiple Airlines logo]()
$265
This Cheapflightsfares deal was found by Cheapflights users on 5/1. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/97:00 pm
SJU
- BUF
Nonstop4h 48m
JetBlue
Sat 5/169:19 am
BUF
- SJU
Nonstop3h 54m
JetBlue
Deal found 5/1![JetBlue logo]()
$270
This Booking.com deal was found by Cheapflights users on 5/1. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/156:09 pm
SJU
- BUF
1 stop19h 43m
Frontier
Fri 5/227:52 pm
BUF
- SJU
1 stop6h 16m
Frontier
Deal found 5/1![Frontier logo]()
$252
This SmartFares deal was found by Cheapflights users on 5/1. 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 5/157:00 pm
SJU
- BUF
Nonstop4h 48m
JetBlue
Fri 5/227:16 am
BUF
- SJU
Nonstop3h 55m
JetBlue
Deal found 5/1![JetBlue logo]()
$262
This CheapOair deal was found by Cheapflights users on 5/1. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/226:20 pm
SJU
- BUF
Nonstop4h 49m
Multiple Airlines
Wed 5/277:52 pm
BUF
- SJU
1 stop6h 16m
Multiple Airlines
Deal found 5/1![Multiple Airlines logo]()
$274
This Priceline deal was found by Cheapflights users on 5/3. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/296:00 am
SJU
- BUF
1 stop12h 59m
Frontier
Mon 6/87:52 pm
BUF
- SJU
1 stop17h 24m
Frontier
Deal found 5/3![Frontier logo]()
$212
This Priceline deal was found by Cheapflights users on 5/3. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/296:20 pm
SJU
- BUF
Nonstop4h 49m
Multiple Airlines
Sun 5/318:49 pm
BUF
- SJU
1 stop11h 15m
Multiple Airlines
Deal found 5/3![Multiple Airlines logo]()
$269
This CheapOair deal was found by Cheapflights users on 4/30. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/49:00 am
SJU
- BUF
1 stop11h 04m
Frontier
Sun 6/78:49 pm
BUF
- SJU
1 stop20h 46m
Frontier
Deal found 4/30![Frontier logo]()
$238
This Priceline deal was found by Cheapflights users on 5/1. 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.
Thu 6/49:00 am
SJU
- BUF
1 stop11h 04m
Multiple Airlines
Mon 6/87:16 am
BUF
- SJU
Nonstop3h 55m
Multiple Airlines
Deal found 5/1![Multiple Airlines logo]()
$239
This JetBlue deal was found by Cheapflights users on 5/2. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/56:20 pm
SJU
- BUF
Nonstop4h 49m
JetBlue
Mon 6/87:16 am
BUF
- SJU
Nonstop3h 55m
JetBlue
Deal found 5/2![JetBlue logo]()
$247
This Frontier deal was found by Cheapflights users on 5/1. 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.
Tue 6/238:00 am
SJU
- BUF
1 stop12h 17m
Frontier
Fri 6/267:57 pm
BUF
- SJU
1 stop11h 58m
Frontier
Deal found 5/1![Frontier logo]()
$256
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 May 5, 2026.
Search for one-way flight options from San Juan to Buffalo. Find affordable one-way fares based on user searches. Data last updated May 5, 2026.
This Kiwi.com deal was found by Cheapflights users on 5/3. 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.
Tue 6/27:00 am
SJU
- BUF
2 stops30h 54m
Frontier
Deal found 5/3![Frontier logo]()
$129
This Expedia deal was found by Cheapflights users on 4/30. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/93:33 pm
SJU
- BUF
1 stop27h 13m
Frontier
Deal found 4/30![Frontier logo]()
$133
This Frontier deal was found by Cheapflights users on 5/5. 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.
Thu 7/308:00 am
SJU
- BUF
1 stop12h 16m
Frontier
Deal found 5/5![Frontier logo]()
$138
This Mytrip deal was found by Cheapflights users on 5/2. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/186:00 am
SJU
- BUF
1 stop13h 12m
Frontier
Deal found 5/2![Frontier logo]()
$139
This Kiwi.com deal was found by Cheapflights users on 5/3. 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.
Tue 6/96:45 pm
SJU
- BUF
2 stops19h 10m
Frontier
Deal found 5/3![Frontier logo]()
$144
This Kiwi.com deal was found by Cheapflights users on 5/2. 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.
Sun 5/314:46 pm
SJU
- BUF
2 stops21h 08m
Frontier
Deal found 5/2![Frontier logo]()
$147
This Travelocity deal was found by Cheapflights users on 5/5. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/249:00 am
SJU
- BUF
1 stop11h 04m
Frontier
Deal found 5/5![Frontier logo]()
$148
This SmartFares deal was found by Cheapflights users on 5/5. 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 5/137:11 pm
SJU
- BUF
Nonstop4h 48m
JetBlue
Deal found 5/5![JetBlue logo]()
$150
This Delta deal was found by Cheapflights users on 5/1. 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.
Sun 7/267:35 am
SJU
- BUF
1 stop7h 42m
Delta
Deal found 5/1![Delta logo]()
$151
This Kiwi.com deal was found by Cheapflights users on 5/2. 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 5/276:41 pm
SJU
- BUF
2 stops25h 23m
Frontier
Deal found 5/2![Frontier logo]()
$152
This Kiwi.com deal was found by Cheapflights users on 5/2. 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 7/17:30 am
SJU
- BUF
2 stops54h 25m
Frontier
Deal found 5/2![Frontier logo]()
$153
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 May 5, 2026.
Round-trip from | $212 (Priceline) |
|---|---|
One-way from | $129 (Kiwi.com) |
Popular in | December |
Cheapest in | September |
Average price | $318 |
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 May 5, 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
Mon 5/11
6:00 am-6:46 pm
1 stop12h 46m
Buffalo
Sat 5/23
7:52 pm-8:04 am
1 stop12h 12m
$300
San JuanBuffalo
SJU - BUF
SJUBUF
San Juan Luis Munoz Marin Intl
Fri 5/8
8:59 am-6:46 pm
1 stop9h 47m
Buffalo
Thu 5/14
8:49 pm-8:04 am
1 stop11h 15m
$308
San JuanBuffalo
SJU - BUF
SJUBUF
San Juan Luis Munoz Marin Intl
Fri 5/29
6:20 pm-11:09 pm
Nonstop4h 49m
Buffalo
Tue 6/2
2:41 pm-10:53 pm
1 stop8h 12m
$345
San JuanBuffalo
SJU - BUF
SJUBUF
San Juan Luis Munoz Marin Intl
Fri 5/8
7:05 am-3:02 pm
1 stop7h 57m
Buffalo
Mon 5/11
6:15 am-4:33 pm
1 stop10h 18m
$373
San JuanBuffalo
SJU - BUF
SJUBUF
San Juan Luis Munoz Marin Intl
Thu 7/23
8:00 am-8:16 pm
1 stop12h 16m
Buffalo
Mon 7/27
7:57 pm-1:20 pm
1 stop17h 23m
$376
San JuanBuffalo
SJU - BUF
SJUBUF
San Juan Luis Munoz Marin Intl
Fri 5/22
5:15 pm-6:59 pm
2 stops25h 44m
Buffalo
Tue 6/23
11:50 am-12:37 am
2 stops12h 47m
$397
San JuanBuffalo
SJU - BUF
SJUBUF
San Juan Luis Munoz Marin Intl
Fri 5/8
7:20 am-2:10 pm
1 stop6h 50m
Buffalo
Mon 5/11
10:31 am-9:24 pm
2 stops10h 53m
$412
San JuanBuffalo
SJU - BUF
SJUBUF
San Juan Luis Munoz Marin Intl
Mon 6/22
5:38 pm-10:55 am
1 stop17h 17m
Buffalo
Wed 7/1
2:50 pm-12:37 am
2 stops33h 47m
$420
Quickest round-trip
San JuanBuffalo
SJU - BUF
SJUBUF
San Juan Luis Munoz Marin Intl
Mon 5/11
7:00 pm-11:48 pm
Nonstop4h 48m
Buffalo
Sat 5/23
7:16 am-11:11 am
Nonstop3h 55m
$420
San JuanBuffalo
SJU - BUF
SJUBUF
San Juan Luis Munoz Marin Intl
Fri 5/8
1:31 pm-11:59 pm
2 stops10h 28m
Buffalo
Thu 5/14
5:00 am-10:05 pm
1 stop17h 05m
$430
Showing 1-10 of 21 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
How far ahead should I book a flight from San Juan to Buffalo?
Booking 70 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 $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 May 5, 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?
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 May 5, 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.
Boarding
8.1
Food
7.0
Entertainment
7.5
Comfort
8.0
Overall
7.9
Crew
8.6
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Boarding
8.1
Food
7.0
Entertainment
7.5
Comfort
8.0
Overall
7.9
Crew
8.6
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Boarding
8.1
Food
7.0
Entertainment
7.5
Comfort
8.0
Overall
7.9
Crew
8.6
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Boarding
8.1
Food
7.0
Entertainment
7.5
Comfort
8.0
Overall
7.9
Crew
8.6
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Boarding
8.1
Food
7.0
Entertainment
7.5
Comfort
8.0
Overall
7.9
Crew
8.6
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Boarding
8.1
Food
7.0
Entertainment
7.5
Comfort
8.0
Overall
7.9
Crew
8.6
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
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
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Other flights to Buffalo
Explore flights to Buffalo departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on May 5, 2026.
Complete your trip
Complete your trip to Buffalo by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from San Juan to Buffalo by cabin class
Find flights from San Juan to Buffalo, based on your preferred cabin class, be it economy, premium economy, business, or first class.
San Juan and Buffalo flights
Browse other San Juan and Buffalo flight options. Last updated on May 5, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
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 May 5, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$102 | Average$291 | 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$390 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$239 | Average$360 | FlexibilityNo cancel fee | On-time62% |