$87+ Cheap flights from Buffalo (BUF) to Puerto Rico
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 9/15. Fares are subject to change and may not be available on all flights or dates of travel.
BUF — SJU
Sep 21 — Sep 281
Round-trip
1 adult, Economy
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Find cheap flights from Buffalo to Puerto Rico 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
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
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 Buffalo to Puerto Rico
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Cheapest flights from Buffalo to Puerto RicoExplore the most affordable flight options available from Buffalo to Puerto Rico. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 22, 2026.
Explore the most affordable flight options available from Buffalo to Puerto Rico. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 22, 2026.
This Frontier deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/226:51 pm -
1 stop7h 01m
Thu 9/247:00 am -
1 stop10h 45m
Deal found 8/18![Frontier logo]()
$174
This FlightHub deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1012:49 pm -
1 stop10h 24m
Sat 9/122:57 am -
1 stop14h 48m
Deal found 8/18![Frontier logo]()
$177
This FlightHub deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/136:51 pm -
1 stop7h 02m
Wed 10/216:42 pm -
1 stop23h 10m
Deal found 8/18![Frontier logo]()
$184
This Trip.com deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/226:51 pm -
1 stop7h 01m
Wed 9/236:42 pm -
1 stop23h 03m
Deal found 8/18![Frontier logo]()
$188
This Priceline deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1712:49 pm -
1 stop13h 03m
Thu 9/247:00 am -
1 stop10h 45m
Deal found 8/18![Frontier logo]()
$190
This Kiwi.com deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/89:29 pm -
1 stop28h 23m
Tue 9/1510:42 am -
1 stop7h 07m
Deal found 8/18![Frontier logo]()
$191
This Justfly.com deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/112:49 pm -
1 stop10h 24m
Sat 10/36:42 pm -
1 stop23h 03m
Deal found 8/18![Frontier logo]()
$193
This Kiwi.com deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/89:29 pm -
1 stop28h 23m
Sat 9/129:50 pm -
1 stop19h 55m
Deal found 8/18![Frontier logo]()
$197
This Kiwi.com deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/412:49 pm -
1 stop13h 03m
Sat 10/103:00 am -
1 stop14h 52m
Deal found 8/18![Frontier logo]()
$201
This Kiwi.com deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/2012:49 pm -
1 stop20h 46m
Sun 9/2710:42 am -
1 stop7h 03m
Deal found 8/18![Frontier logo]()
$207
This American Airlines deal was found by Cheapflights users on 8/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/136:51 pm -
1 stop16h 29m
Wed 10/216:20 am -
2 stops9h 37m
Deal found 8/20![American Airlines logo]()
$210
This American Airlines deal was found by Cheapflights users on 8/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/35:00 pm -
2 stops16h 24m
Tue 10/612:59 pm -
1 stop8h 45m
Deal found 8/20![American Airlines logo]()
$212
Best flights from Buffalo to Puerto RicoDiscover carefully curated flight deals from Buffalo to Puerto Rico that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 22, 2026.
Discover carefully curated flight deals from Buffalo to Puerto Rico that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 22, 2026.
This United Airlines deal was found by Cheapflights users on 8/22. 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.
Wed 9/306:30 am -
1 stop7h 15m
Sat 10/31:25 pm -
1 stop9h 46m
Deal found 8/22![United Airlines logo]()
$219
This Delta deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/93:53 pm -
1 stop7h 56m
Fri 9/182:59 pm -
1 stop8h 53m
Deal found 8/17![Delta logo]()
$294
This Southwest deal was found by Cheapflights users on 8/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/171:40 pm -
1 stop9h 30m
Sat 9/195:55 am -
2 stops10h 50m
Deal found 8/20![Southwest logo]()
$304
This JetBlue deal was found by Cheapflights users on 8/17. 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.
Mon 9/76:00 am -
Nonstop4h 32m
Wed 9/1611:15 am -
1 stop9h 04m
Deal found 8/17![JetBlue logo]()
$324
This Kiwi.com deal was found by Cheapflights users on 8/21. 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 10/211:44 pm -
2 stops19h 19m
Sun 10/259:43 am -
1 stop8h 09m
Deal found 8/21![Frontier logo]()
$427
This United Airlines deal was found by Cheapflights users on 8/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/1210:27 am -
2 stops13h 23m
Tue 9/151:25 pm -
1 stop9h 47m
Deal found 8/20![United Airlines logo]()
$236
This CheapOair deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/39:29 pm -
1 stop28h 41m
Tue 9/82:30 pm -
2 stops29h 49m
Deal found 8/18![Multiple Airlines logo]()
$503
This United Airlines deal was found by Cheapflights users on 8/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/127:00 am -
2 stops13h 38m
Fri 9/181:00 am -
2 stops12h 16m
Deal found 8/19![United Airlines logo]()
$252
This Southwest deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/2212:00 pm -
2 stops9h 10m
Wed 9/235:15 am -
1 stop6h 25m
Deal found 8/18![Southwest logo]()
$312
This Delta deal was found by Cheapflights users on 8/17. 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 9/116:05 am -
1 stop10h 44m
Fri 9/182:59 pm -
1 stop8h 53m
Deal found 8/17![Delta logo]()
$319
This JetBlue deal was found by Cheapflights users on 8/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/209:20 am -
1 stop9h 30m
Wed 10/2111:15 am -
1 stop9h 02m
Deal found 8/21![JetBlue logo]()
$344
This United Airlines deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/186:00 am -
1 stop7h 40m
Mon 11/238:05 am -
2 stops13h 31m
Deal found 8/18![United Airlines logo]()
$292
This Southwest deal was found by Cheapflights users on 8/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/115:50 am -
1 stop6h 30m
Tue 10/135:05 am -
2 stops10h 10m
Deal found 8/19![Southwest logo]()
$324
This Southwest deal was found by Cheapflights users on 8/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/39:15 am -
2 stops9h 50m
Wed 10/145:05 am -
2 stops10h 10m
Deal found 8/19![Southwest logo]()
$374
This Frontier deal was found by Cheapflights users on 8/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/39:29 pm -
1 stop12h 33m
Mon 9/710:47 am -
1 stop7h 22m
Deal found 8/19![Frontier logo]()
$509
This Priceline deal was found by Cheapflights users on 8/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/217:40 am -
1 stop16h 19m
Sun 10/259:43 am -
1 stop8h 09m
Deal found 8/21![Multiple Airlines logo]()
$513
This FlightHub deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/105:15 pm -
1 stop15h 23m
Mon 10/125:01 am -
1 stop18h 57m
Deal found 8/18![JetBlue logo]()
$478
This United Airlines deal was found by Cheapflights users on 8/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/510:30 am -
2 stops12h 39m
Fri 9/1112:15 am -
2 stops13h 01m
Deal found 8/20![United Airlines logo]()
$398
This Orbitz deal was found by Cheapflights users on 8/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/162:23 pm -
2 stops17h 38m
Wed 9/238:55 am -
1 stop11h 24m
Deal found 8/19![JetBlue logo]()
$540
This United Airlines deal was found by Cheapflights users on 8/22. 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.
Sun 9/610:30 am -
2 stops12h 39m
Wed 9/912:15 am -
2 stops13h 01m
Deal found 8/22![United Airlines logo]()
$481
This Orbitz deal was found by Cheapflights users on 8/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/122:23 pm -
2 stops17h 38m
Sat 9/198:55 am -
1 stop11h 24m
Deal found 8/19![JetBlue logo]()
$560
This United Airlines deal was found by Cheapflights users on 8/17. 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.
Wed 9/3010:46 am -
2 stops12h 23m
Fri 10/212:15 am -
2 stops12h 56m
Deal found 8/17![United Airlines logo]()
$672
This United Airlines deal was found by Cheapflights users on 8/21. 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 9/45:58 pm -
2 stops29h 11m
Sat 9/1212:15 am -
2 stops9h 33m
Deal found 8/21![United Airlines logo]()
$691
This United Airlines deal was found by Cheapflights users on 8/17. 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.
Sun 9/206:10 am -
2 stops11h 11m
Fri 9/2510:48 am -
2 stops12h 23m
Deal found 8/17![United Airlines logo]()
$1,558
This United Airlines deal was found by Cheapflights users on 8/17. 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.
Wed 9/237:00 am -
2 stops10h 21m
Sun 9/2710:48 am -
2 stops12h 23m
Deal found 8/17![United Airlines logo]()
$1,558
This United Airlines deal was found by Cheapflights users on 8/17. 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.
Sun 9/206:00 am -
2 stops11h 21m
Sun 9/2710:48 am -
2 stops12h 23m
Deal found 8/17![United Airlines logo]()
$1,558
This United Airlines deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/246:30 am -
2 stops10h 51m
Fri 9/2510:48 am -
2 stops12h 23m
Deal found 8/18![United Airlines logo]()
$1,558
This United Airlines deal was found by Cheapflights users on 8/17. 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.
Wed 9/236:00 am -
2 stops11h 21m
Fri 9/2510:48 am -
2 stops12h 23m
Deal found 8/17![United Airlines logo]()
$1,558
This United Airlines deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/216:55 am -
2 stops10h 26m
Fri 9/2510:48 am -
2 stops12h 23m
Deal found 8/17![United Airlines logo]()
$1,558
This United Airlines deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/283:52 pm -
2 stops25h 29m
Sun 10/410:48 am -
2 stops12h 23m
Deal found 8/18![United Airlines logo]()
$1,708
Last-minute flights from Buffalo to Puerto RicoDiscover last-minute flight deals from Buffalo to Puerto Rico. Data last updated August 22, 2026 and is based on user searches.
Discover last-minute flight deals from Buffalo to Puerto Rico. Data last updated August 22, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/89:29 pm -
1 stop28h 23m
Tue 9/1510:42 am -
1 stop7h 07m
Deal found 8/18![Frontier logo]()
$191
This Kiwi.com deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/89:29 pm -
1 stop28h 23m
Sat 9/129:50 pm -
1 stop19h 55m
Deal found 8/18![Frontier logo]()
$197
This American Airlines deal was found by Cheapflights users on 8/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/95:29 am -
2 stops15h 18m
Thu 10/812:41 pm -
1 stop10h 09m
Deal found 8/19![American Airlines logo]()
$219
This FlightHub deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1012:49 pm -
1 stop10h 24m
Sat 9/122:57 am -
1 stop14h 48m
Deal found 8/18![Frontier logo]()
$177
This Justfly.com deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1012:49 pm -
1 stop10h 24m
Sat 9/129:50 pm -
1 stop19h 55m
Deal found 8/18![Frontier logo]()
$184
This Frontier deal was found by Cheapflights users on 8/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1012:49 pm -
1 stop13h 03m
Tue 9/1510:42 am -
1 stop7h 07m
Deal found 8/20![Frontier logo]()
$214
This Priceline deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1712:49 pm -
1 stop13h 03m
Thu 9/247:00 am -
1 stop10h 45m
Deal found 8/18![Frontier logo]()
$190
This Southwest deal was found by Cheapflights users on 8/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1711:25 am -
1 stop11h 30m
Sat 9/195:55 am -
1 stop6h 10m
Deal found 8/20![Southwest logo]()
$210
This Kiwi.com deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/2012:49 pm -
1 stop20h 46m
Sun 9/2710:42 am -
1 stop7h 03m
Deal found 8/18![Frontier logo]()
$207
This Frontier deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/226:51 pm -
1 stop7h 01m
Thu 9/247:00 am -
1 stop10h 45m
Deal found 8/18![Frontier logo]()
$174
This Trip.com deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/226:51 pm -
1 stop7h 01m
Wed 9/236:42 pm -
1 stop23h 03m
Deal found 8/18![Frontier logo]()
$188
This Kiwi.com deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/2712:49 pm -
1 stop20h 46m
Mon 10/53:55 pm -
1 stop25h 54m
Deal found 8/18![Frontier logo]()
$213
One-way flights from Buffalo to Puerto RicoSearch for one-way flight options from Buffalo to Puerto Rico. Find affordable one-way fares based on user searches. Data last updated August 22, 2026.
Search for one-way flight options from Buffalo to Puerto Rico. Find affordable one-way fares based on user searches. Data last updated August 22, 2026.
This Frontier deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/156:51 pm -
1 stop7h 01m
Deal found 8/18![Frontier logo]()
$87
This FlightHub deal was found by Cheapflights users on 8/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/58:45 pm -
1 stop16h 31m
Deal found 8/19![Frontier logo]()
$89
This Expedia deal was found by Cheapflights users on 8/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/1312:49 pm -
1 stop20h 46m
Deal found 8/19![Frontier logo]()
$93
This FlightHub deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/1812:53 pm -
1 stop20h 25m
Deal found 8/18![Frontier logo]()
$101
This Frontier deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1712:49 pm -
1 stop10h 24m
Deal found 8/18![Frontier logo]()
$103
This Southwest deal was found by Cheapflights users on 8/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/1210:40 am -
1 stop7h 30m
Deal found 8/20![Southwest logo]()
$105
This American Airlines deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/176:00 am -
2 stops14h 47m
Deal found 8/18![American Airlines logo]()
$107
This American Airlines deal was found by Cheapflights users on 8/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/125:18 pm -
2 stops16h 06m
Deal found 8/20![American Airlines logo]()
$108
This Super.com deal was found by Cheapflights users on 8/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/237:15 am -
1 stop8h 12m
Deal found 8/20![JetBlue logo]()
$109
This American Airlines deal was found by Cheapflights users on 8/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/225:44 pm -
2 stops17h 16m
Deal found 8/20![American Airlines logo]()
$111
This Orbitz deal was found by Cheapflights users on 8/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/1212:54 pm -
1 stop28h 27m
Deal found 8/20![Frontier logo]()
$113
This United Airlines deal was found by Cheapflights users on 8/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/2610:46 am -
2 stops13h 04m
Deal found 8/19![United Airlines logo]()
$118
Find flight deals from Buffalo to Puerto Rico
Keep the following information in mind while searching for Buffalo to Puerto Rico flight deals. Data was last updated August 22, 2026.
Round-trip from | $174 (Frontier) |
|---|---|
One-way from | $87 (Frontier) |
Popular in | December |
Cheapest in | March |
Average price | $362 |
Good round-trip deal | $440 or less |
Good one-way deal | $172 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Buffalo to Puerto Rico 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 7,457,451 searches. Data last updated August 22, 2026.
Use the filters below to find and compare flights from Buffalo to Puerto Rico that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
BuffaloSan Juan
BUF Buffalo - SJU San Juan Luis Munoz Marin Intl
BUFSJU
Buffalo
Wed 9/30
6:30 am-1:45 pm
1 stop7h 15m
San Juan Luis Munoz Marin Intl
Sat 10/3
1:25 pm-11:11 pm
1 stop9h 46m
$219
BuffaloSan Juan
BUF Buffalo - SJU San Juan Luis Munoz Marin Intl
BUFSJU
Buffalo
Sat 9/12
10:27 am-11:50 pm
2 stops13h 23m
San Juan Luis Munoz Marin Intl
Tue 9/15
1:25 pm-11:12 pm
1 stop9h 47m
$236
BuffaloSan Juan
BUF Buffalo - SJU San Juan Luis Munoz Marin Intl
BUFSJU
Buffalo
Sat 9/12
7:00 am-8:38 pm
2 stops13h 38m
San Juan Luis Munoz Marin Intl
Fri 9/18
1:00 am-1:16 pm
2 stops12h 16m
$252
BuffaloSan Juan
BUF Buffalo - SJU San Juan Luis Munoz Marin Intl
BUFSJU
Buffalo
Wed 11/18
6:00 am-2:40 pm
1 stop7h 40m
San Juan Luis Munoz Marin Intl
Mon 11/23
8:05 am-8:36 pm
2 stops13h 31m
$292
BuffaloSan Juan
BUF Buffalo - SJU San Juan Luis Munoz Marin Intl
BUFSJU
Buffalo
Wed 9/9
3:53 pm-11:49 pm
1 stop7h 56m
San Juan Luis Munoz Marin Intl
Fri 9/18
2:59 pm-11:52 pm
1 stop8h 53m
$294
BuffaloSan Juan
BUF Buffalo - SJU San Juan Luis Munoz Marin Intl
BUFSJU
Buffalo
Thu 9/17
1:40 pm-11:10 pm
1 stop9h 30m
San Juan Luis Munoz Marin Intl
Sat 9/19
5:55 am-4:45 pm
2 stops10h 50m
$304
BuffaloSan Juan
BUF Buffalo - SJU San Juan Luis Munoz Marin Intl
BUFSJU
Buffalo
Tue 9/22
12:00 pm-9:10 pm
2 stops9h 10m
San Juan Luis Munoz Marin Intl
Wed 9/23
5:15 am-11:40 am
1 stop6h 25m
$312
BuffaloSan Juan
BUF Buffalo - SJU San Juan Luis Munoz Marin Intl
BUFSJU
Buffalo
Fri 9/11
6:05 am-4:49 pm
1 stop10h 44m
San Juan Luis Munoz Marin Intl
Fri 9/18
2:59 pm-11:52 pm
1 stop8h 53m
$319
Quickest round-trip
BuffaloSan Juan
BUF Buffalo - SJU San Juan Luis Munoz Marin Intl
BUFSJU
Buffalo
Mon 9/7
6:00 am-10:32 am
Nonstop4h 32m
San Juan Luis Munoz Marin Intl
Wed 9/16
11:15 am-8:19 pm
1 stop9h 04m
$324
BuffaloSan Juan
BUF Buffalo - SJU San Juan Luis Munoz Marin Intl
BUFSJU
Buffalo
Sun 10/11
5:50 am-12:20 pm
1 stop6h 30m
San Juan Luis Munoz Marin Intl
Tue 10/13
5:05 am-3:15 pm
2 stops10h 10m
$324
Showing 1-10 of 45 resultsSorted by cheapest first
Best time to book a flight from Buffalo to Puerto Rico
Have a flexible travel schedule? Discover the best time to fly to Puerto Rico from Buffalo with our price prediction graph.
BUF-SJU
BUF-PSE
BUF-BQN
BUF-CPX
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 Buffalo to Puerto Rico
BUF-PR0
BUF-SJU
BUF-PSE
BUF-BQN
BUF-CPX
What is the cheapest month to book a flight from Buffalo to Puerto Rico?
Currently, October is the cheapest month in which you can book a flight from Buffalo to Puerto Rico (average of $333). Flying from Buffalo to Puerto Rico in December is currently the most expensive (average of $606). 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 BUF to PR?
Find hourly flight availability from Buffalo to Puerto Rico. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 22, 2026.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Buffalo to Puerto Rico as you normally would.
How far ahead should I book a flight from Buffalo to Puerto Rico?
To ensure you get the cheapest price possible for a flight from Buffalo to Puerto Rico, you should look to book at least 87 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
Reviews of airlines servicing Puerto Rico
Get insights into the airlines that provide service to Puerto Rico. 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 Puerto Rico. Reviews last updated August 22, 2026.
See what other customers who have flown with Southwest,Delta, andAmerican Airlines from Buffalo to Puerto Rico have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
7.5
Overall
8.0
Crew
8.6
Comfort
8.0
Boarding
8.1
Food
7.0
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Entertainment
7.5
Overall
8.0
Crew
8.6
Comfort
8.0
Boarding
8.1
Food
7.0
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Entertainment
7.5
Overall
8.0
Crew
8.6
Comfort
8.0
Boarding
8.1
Food
7.0
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Entertainment
7.5
Overall
8.0
Crew
8.6
Comfort
8.0
Boarding
8.1
Food
7.0
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Entertainment
7.5
Overall
8.0
Crew
8.6
Comfort
8.0
Boarding
8.1
Food
7.0
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Entertainment
7.5
Overall
8.0
Crew
8.6
Comfort
8.0
Boarding
8.1
Food
7.0
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Related info for your journey
Find useful and relevant information for your journey from Buffalo to Puerto Rico. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for Buffalo to Puerto Rico
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Complete your trip
Complete your trip to Puerto Rico by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Buffalo to Puerto Rico by cabin class
Find flights from Buffalo to Puerto Rico, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Buffalo and Puerto Rico flights
Browse other Buffalo and Puerto Rico flight options. Last updated on August 22, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Buffalo to Puerto Rico flights
Consider these flights traveling from Buffalo to Puerto Rico.
Top 6 airlines flying from Buffalo to Puerto Rico
Discover the top 6 airlines that operate flights from Buffalo to Puerto Rico. 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 7,457,451 searches. Data last updated August 22, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$106 | Average$318 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$153 | Average$303 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$211 | Average$480 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$211 | Average$447 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$228 | Average$427 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$231 | Average$464 | FlexibilityNo cancel fee | On-time71% |