$132+ 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 6/19. Fares are subject to change and may not be available on all flights or dates of travel.
SJU — BUF
Jul 4 — Jul 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.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
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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 June 4, 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 June 4, 2026.
This SmartFares deal was found by Cheapflights users on 6/3. 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.
Wed 6/176:20 pm
SJU
- BUF
Nonstop4h 38m
JetBlue
Sat 6/207:00 am
BUF
- SJU
Nonstop4h 43m
JetBlue
Deal found 6/3![JetBlue logo]()
$270
This SmartFares deal was found by Cheapflights users on 6/1. 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 8/76:20 pm
SJU
- BUF
Nonstop4h 38m
JetBlue
Mon 8/177:00 am
BUF
- SJU
Nonstop4h 33m
JetBlue
Deal found 6/1![JetBlue logo]()
$300
This American Airlines deal was found by Cheapflights users on 6/4. 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 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 9/296:00 am
BUF
- SJU
2 stops14h 47m
American Airlines
Deal found 6/4![American Airlines logo]()
$302
This American Airlines deal was found by Cheapflights users on 6/2. 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.
Fri 8/147:00 am
SJU
- BUF
1 stop7h 26m
American Airlines
Tue 8/181:03 pm
BUF
- SJU
1 stop9h 21m
American Airlines
Deal found 6/2![American Airlines logo]()
$308
This Cheapflightsfares deal was found by Cheapflights users on 6/4. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/76:20 pm
SJU
- BUF
Nonstop4h 38m
JetBlue
Mon 8/107:00 am
BUF
- SJU
Nonstop4h 33m
JetBlue
Deal found 6/4![JetBlue logo]()
$310
This Southwest deal was found by Cheapflights users on 5/31. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/25:15 am
SJU
- BUF
2 stops10h 00m
Southwest
Sun 9/612:55 pm
BUF
- SJU
1 stop10h 25m
Southwest
Deal found 5/31![Southwest logo]()
$312
This Southwest deal was found by Cheapflights users on 6/2. 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 8/1210:30 am
SJU
- BUF
2 stops10h 35m
Southwest
Sat 8/1510:40 am
BUF
- SJU
1 stop8h 40m
Southwest
Deal found 6/2![Southwest logo]()
$313
This Cheapflightsfares deal was found by Cheapflights users on 6/4. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/16:20 pm
SJU
- BUF
Nonstop4h 38m
JetBlue
Wed 7/87:00 am
BUF
- SJU
Nonstop4h 35m
JetBlue
Deal found 6/4![JetBlue logo]()
$320
This Delta deal was found by Cheapflights users on 6/2. 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 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 10/36:20 am
BUF
- SJU
1 stop6h 40m
Delta
Deal found 6/2![Delta logo]()
$324
This SmartFares deal was found by Cheapflights users on 6/1. 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 9/46:20 pm
SJU
- BUF
Nonstop4h 38m
JetBlue
Mon 9/77:00 am
BUF
- SJU
Nonstop4h 33m
JetBlue
Deal found 6/1![JetBlue logo]()
$325
This Cheapflightsfares deal was found by Cheapflights users on 6/4. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/116:29 pm
SJU
- BUF
Nonstop4h 38m
JetBlue
Sat 8/157:00 am
BUF
- SJU
Nonstop4h 33m
JetBlue
Deal found 6/4![JetBlue logo]()
$330
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 June 4, 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 June 4, 2026.
This Delta deal was found by Cheapflights users on 5/31. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/131:19 pm
SJU
- BUF
1 stop11h 21m
Delta
Tue 8/1812:16 pm
BUF
- SJU
1 stop10h 13m
Delta
Deal found 5/31![Delta logo]()
$334
This JetBlue deal was found by Cheapflights users on 5/30. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/266:20 pm
SJU
- BUF
Nonstop4h 38m
JetBlue
Thu 8/279:15 am
BUF
- SJU
1 stop6h 43m
JetBlue
Deal found 5/30![JetBlue logo]()
$356
This CheapOair deal was found by Cheapflights users on 6/4. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/176:29 pm
SJU
- BUF
Nonstop4h 38m
Multiple Airlines
Wed 7/297:57 pm
BUF
- SJU
1 stop23h 35m
Multiple Airlines
Deal found 6/4![Multiple Airlines logo]()
$357
This Southwest deal was found by Cheapflights users on 6/4. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/410:00 am
SJU
- BUF
2 stops8h 25m
Southwest
Mon 9/75:40 am
BUF
- SJU
1 stop8h 50m
Southwest
Deal found 6/4![Southwest logo]()
$412
This Delta deal was found by Cheapflights users on 6/2. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/412:56 pm
SJU
- BUF
1 stop11h 03m
Delta
Tue 9/83:50 pm
BUF
- SJU
1 stop8h 09m
Delta
Deal found 6/2![Delta logo]()
$334
This JetBlue deal was found by Cheapflights users on 5/31. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/36:20 pm
SJU
- BUF
Nonstop4h 38m
JetBlue
Wed 7/83:55 pm
BUF
- SJU
1 stop8h 18m
JetBlue
Deal found 5/31![JetBlue logo]()
$418
This Delta deal was found by Cheapflights users on 6/1. 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 8/71:19 pm
SJU
- BUF
1 stop11h 21m
Delta
Mon 8/177:00 am
BUF
- SJU
1 stop9h 33m
Delta
Deal found 6/1![Delta logo]()
$399
This Southwest deal was found by Cheapflights users on 6/3. 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.
Sat 7/41:55 pm
SJU
- BUF
1 stop6h 30m
Southwest
Tue 7/142:55 pm
BUF
- SJU
2 stops9h 25m
Southwest
Deal found 6/3![Southwest logo]()
$458
This Delta deal was found by Cheapflights users on 6/4. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/77:30 am
SJU
- BUF
1 stop7h 43m
Delta
Mon 8/103:53 pm
BUF
- SJU
1 stop7h 59m
Delta
Deal found 6/4![Delta logo]()
$399
This Southwest deal was found by Cheapflights users on 6/3. 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.
Wed 11/256:05 am
SJU
- BUF
1 stop9h 40m
Southwest
Thu 12/36:00 am
BUF
- SJU
2 stops9h 55m
Southwest
Deal found 6/3![Southwest logo]()
$458
This Southwest deal was found by Cheapflights users on 6/3. 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.
Sun 6/145:00 am
SJU
- BUF
2 stops9h 25m
Southwest
Wed 7/812:50 pm
BUF
- SJU
1 stop10h 00m
Southwest
Deal found 6/3![Southwest logo]()
$494
This Southwest deal was found by Cheapflights users on 5/31. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/2610:20 pm
SJU
- BUF
1 stop10h 30m
Southwest
Mon 6/292:50 pm
BUF
- SJU
2 stops9h 15m
Southwest
Deal found 5/31![Southwest logo]()
$494
Last-minute flights from San Juan to BuffaloDiscover last-minute flight deals from San Juan to Buffalo. Data last updated June 4, 2026 and is based on user searches.
Discover last-minute flight deals from San Juan to Buffalo. Data last updated June 4, 2026 and is based on user searches.
This Cheapflightsfares deal was found by Cheapflights users on 6/3. 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.
Fri 6/56:20 pm
SJU
- BUF
Nonstop4h 49m
JetBlue
Wed 6/177:00 am
BUF
- SJU
Nonstop4h 43m
JetBlue
Deal found 6/3![JetBlue logo]()
$341
This SmartFares deal was found by Cheapflights users on 6/2. 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.
Fri 6/126:20 pm
SJU
- BUF
Nonstop4h 38m
JetBlue
Mon 6/157:00 am
BUF
- SJU
Nonstop4h 43m
JetBlue
Deal found 6/2![JetBlue logo]()
$310
This SmartFares deal was found by Cheapflights users on 6/3. 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.
Wed 6/176:20 pm
SJU
- BUF
Nonstop4h 38m
JetBlue
Sat 6/207:00 am
BUF
- SJU
Nonstop4h 43m
JetBlue
Deal found 6/3![JetBlue logo]()
$270
This SmartFares deal was found by Cheapflights users on 6/3. 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.
Fri 6/196:20 pm
SJU
- BUF
Nonstop4h 38m
JetBlue
Mon 6/227:00 am
BUF
- SJU
Nonstop4h 43m
JetBlue
Deal found 6/3![JetBlue logo]()
$331
This Cheapflightsfares deal was found by Cheapflights users on 6/4. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/16:20 pm
SJU
- BUF
Nonstop4h 38m
JetBlue
Wed 7/87:00 am
BUF
- SJU
Nonstop4h 35m
JetBlue
Deal found 6/4![JetBlue logo]()
$320
This SmartFares deal was found by Cheapflights users on 5/31. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/36:20 pm
SJU
- BUF
Nonstop4h 38m
JetBlue
Mon 7/63:35 pm
BUF
- SJU
1 stop7h 10m
JetBlue
Deal found 5/31![JetBlue logo]()
$337
This SmartFares deal was found by Cheapflights users on 6/4. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/36:20 pm
SJU
- BUF
Nonstop4h 38m
JetBlue
Wed 7/157:00 am
BUF
- SJU
Nonstop4h 35m
JetBlue
Deal found 6/4![JetBlue logo]()
$345
This Expedia deal was found by Cheapflights users on 5/31. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/46:20 pm
SJU
- BUF
Nonstop4h 38m
Multiple Airlines
Tue 7/149:09 pm
BUF
- SJU
1 stop14h 07m
Multiple Airlines
Deal found 5/31![Multiple Airlines logo]()
$336
This Cheapflightsfares deal was found by Cheapflights users on 6/4. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/116:29 pm
SJU
- BUF
Nonstop4h 38m
JetBlue
Sat 8/157:00 am
BUF
- SJU
Nonstop4h 33m
JetBlue
Deal found 6/4![JetBlue logo]()
$330
This Cheapflightsfares deal was found by Cheapflights users on 6/2. 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.
Fri 7/176:29 pm
SJU
- BUF
Nonstop4h 38m
JetBlue
Wed 7/293:55 pm
BUF
- SJU
1 stop6h 50m
JetBlue
Deal found 6/2![JetBlue logo]()
$347
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 June 4, 2026.
Search for one-way flight options from San Juan to Buffalo. Find affordable one-way fares based on user searches. Data last updated June 4, 2026.
This Cheapflightsfares deal was found by Cheapflights users on 6/3. 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.
Fri 6/196:20 pm
SJU
- BUF
Nonstop4h 38m
JetBlue
Deal found 6/3![JetBlue logo]()
$132
This SmartFares deal was found by Cheapflights users on 5/31. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/136:20 pm
SJU
- BUF
Nonstop4h 38m
JetBlue
Deal found 5/31![JetBlue logo]()
$148
This Southwest deal was found by Cheapflights users on 6/4. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/125:15 am
SJU
- BUF
1 stop6h 25m
Southwest
Deal found 6/4![Southwest logo]()
$151
This SmartFares deal was found by Cheapflights users on 6/2. 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.
Fri 7/36:20 pm
SJU
- BUF
Nonstop4h 38m
JetBlue
Deal found 6/2![JetBlue logo]()
$153
This American Airlines deal was found by Cheapflights users on 6/4. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/122:05 pm
SJU
- BUF
1 stop11h 03m
American Airlines
Deal found 6/4![American Airlines logo]()
$154
This Cheapflightsfares deal was found by Cheapflights users on 6/2. 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.
Fri 6/126:20 pm
SJU
- BUF
Nonstop4h 38m
JetBlue
Deal found 6/2![JetBlue logo]()
$158
This Southwest deal was found by Cheapflights users on 5/31. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/205:35 am
SJU
- BUF
1 stop7h 45m
Southwest
Deal found 5/31![Southwest logo]()
$161
This Cheapflightsfares deal was found by Cheapflights users on 6/4. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/226:29 pm
SJU
- BUF
Nonstop4h 38m
JetBlue
Deal found 6/4![JetBlue logo]()
$163
This Delta deal was found by Cheapflights users on 6/2. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/96:00 am
SJU
- BUF
1 stop10h 06m
Delta
Deal found 6/2![Delta logo]()
$167
This Frontier deal was found by Cheapflights users on 6/4. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/206:05 am
SJU
- BUF
1 stop11h 56m
Frontier
Deal found 6/4![Frontier logo]()
$168
This Delta deal was found by Cheapflights users on 6/2. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/45:45 pm
SJU
- BUF
1 stop7h 03m
Delta
Deal found 6/2![Delta logo]()
$172
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 June 4, 2026.
Round-trip from | $270 (SmartFares) |
|---|---|
One-way from | $132 (Cheapflightsfares) |
Popular in | December |
Cheapest in | September |
Average price | $352 |
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 June 4, 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
Thu 8/13
1:19 pm-12:40 am
1 stop11h 21m
Buffalo
Tue 8/18
12:16 pm-10:29 pm
1 stop10h 13m
$334
San JuanBuffalo
SJU - BUF
SJUBUF
San Juan Luis Munoz Marin Intl
Fri 9/4
12:56 pm-11:59 pm
1 stop11h 03m
Buffalo
Tue 9/8
3:50 pm-11:59 pm
1 stop8h 09m
$334
Quickest round-trip
San JuanBuffalo
SJU - BUF
SJUBUF
San Juan Luis Munoz Marin Intl
Wed 8/26
6:20 pm-10:58 pm
Nonstop4h 38m
Buffalo
Thu 8/27
9:15 am-3:58 pm
1 stop6h 43m
$356
San JuanBuffalo
SJU - BUF
SJUBUF
San Juan Luis Munoz Marin Intl
Fri 7/17
6:29 pm-11:07 pm
Nonstop4h 38m
Buffalo
Wed 7/29
7:57 pm-7:32 pm
1 stop23h 35m
$357
San JuanBuffalo
SJU - BUF
SJUBUF
San Juan Luis Munoz Marin Intl
Fri 8/7
1:19 pm-12:40 am
1 stop11h 21m
Buffalo
Mon 8/17
7:00 am-4:33 pm
1 stop9h 33m
$399
San JuanBuffalo
SJU - BUF
SJUBUF
San Juan Luis Munoz Marin Intl
Fri 8/7
7:30 am-3:13 pm
1 stop7h 43m
Buffalo
Mon 8/10
3:53 pm-11:52 pm
1 stop7h 59m
$399
San JuanBuffalo
SJU - BUF
SJUBUF
San Juan Luis Munoz Marin Intl
Fri 9/4
10:00 am-6:25 pm
2 stops8h 25m
Buffalo
Mon 9/7
5:40 am-2:30 pm
1 stop8h 50m
$412
San JuanBuffalo
SJU - BUF
SJUBUF
San Juan Luis Munoz Marin Intl
Fri 7/3
6:20 pm-10:58 pm
Nonstop4h 38m
Buffalo
Wed 7/8
3:55 pm-12:13 am
1 stop8h 18m
$418
San JuanBuffalo
SJU - BUF
SJUBUF
San Juan Luis Munoz Marin Intl
Sat 7/4
1:55 pm-8:25 pm
1 stop6h 30m
Buffalo
Tue 7/14
2:55 pm-12:20 am
2 stops9h 25m
$458
San JuanBuffalo
SJU - BUF
SJUBUF
San Juan Luis Munoz Marin Intl
Wed 11/25
6:05 am-2:45 pm
1 stop9h 40m
Buffalo
Thu 12/3
6:00 am-4:55 pm
2 stops9h 55m
$458
Showing 1-10 of 22 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 June 4, 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 15 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 June 4, 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.
Comfort
8.0
Entertainment
7.5
Overall
8.0
Food
7.0
Boarding
8.1
Crew
8.6
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Comfort
8.0
Entertainment
7.5
Overall
8.0
Food
7.0
Boarding
8.1
Crew
8.6
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Comfort
8.0
Entertainment
7.5
Overall
8.0
Food
7.0
Boarding
8.1
Crew
8.6
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Comfort
8.0
Entertainment
7.5
Overall
8.0
Food
7.0
Boarding
8.1
Crew
8.6
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Comfort
8.0
Entertainment
7.5
Overall
8.0
Food
7.0
Boarding
8.1
Crew
8.6
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
Comfort
8.0
Entertainment
7.5
Overall
8.0
Food
7.0
Boarding
8.1
Crew
8.6
Reviews
1 / 20
10.0
ExcellentWalter,May 2026
LAS - BUR
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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Alternative routes for San Juan to Buffalo
See prices for flight routes from nearby airports that may be better suited for you.
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 June 4, 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 June 4, 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 June 4, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$102 | Average$283 | 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$478 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$240 | Average$366 | FlexibilityNo cancel fee | On-time62% |