$124+ Cheap flights from Buffalo (BUF) to Luis Munoz Marin Intl (SJU)
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 9/23. Fares are subject to change and may not be available on all flights or dates of travel.
BUF — SJU
Jul 28 — Aug 41
Round-trip
1 adult, Economy
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Find cheap flights from Buffalo to Luis Munoz Marin Intl 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.Cheapflights Tip: The best prices from Buffalo to San Juan Luis Munoz Marin Intl are usually found in September or March, booked 88 days in advance, depart on a Thursday or Wednesday and return on a Tuesday
Cheap flight deals from Buffalo to Luis Munoz Marin Intl
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Best
Last-minute
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Cheapest flights from Buffalo to Luis Munoz Marin IntlExplore the most affordable flight options available from Buffalo to Luis Munoz Marin Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 28, 2026.
Explore the most affordable flight options available from Buffalo to Luis Munoz Marin Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 28, 2026.
This United Airlines deal was found by Cheapflights users on 6/23. 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 8/276:55 am
BUF
- SJU
2 stops13h 43m
United Airlines
Sun 8/304:55 pm
SJU
- BUF
1 stop6h 49m
United Airlines
Deal found 6/23![United Airlines logo]()
$302
This JetBlue deal was found by Cheapflights users on 6/26. 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 8/176:00 am
BUF
- SJU
Nonstop4h 38m
JetBlue
Fri 8/216:29 pm
SJU
- BUF
Nonstop4h 38m
JetBlue
Deal found 6/26![JetBlue logo]()
$305
This Southwest deal was found by Cheapflights users on 6/24. 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.
Mon 8/175:40 am
BUF
- SJU
2 stops11h 15m
Southwest
Tue 9/11:20 pm
SJU
- BUF
1 stop8h 25m
Southwest
Deal found 6/24![Southwest logo]()
$306
This United Airlines deal was found by Cheapflights users on 6/24. 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 9/176:00 am
BUF
- SJU
1 stop7h 45m
United Airlines
Mon 9/214:55 pm
SJU
- BUF
1 stop6h 49m
United Airlines
Deal found 6/24![United Airlines logo]()
$308
This United Airlines deal was found by Cheapflights users on 6/25. 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
BUF
- SJU
1 stop7h 15m
United Airlines
Mon 9/281:25 pm
SJU
- BUF
2 stops10h 11m
United Airlines
Deal found 6/25![United Airlines logo]()
$309
This Southwest deal was found by Cheapflights users on 6/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/183:00 pm
BUF
- SJU
1 stop7h 00m
Southwest
Fri 8/212:35 pm
SJU
- BUF
1 stop8h 05m
Southwest
Deal found 6/26![Southwest logo]()
$314
This SmartFares deal was found by Cheapflights users on 6/25. 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 8/157:00 am
BUF
- SJU
Nonstop4h 40m
JetBlue
Sat 8/226:29 pm
SJU
- BUF
Nonstop4h 38m
JetBlue
Deal found 6/25![JetBlue logo]()
$315
This Delta deal was found by Cheapflights users on 6/25. 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 11/139:55 am
BUF
- SJU
1 stop6h 25m
Delta
Tue 11/177:15 am
SJU
- BUF
1 stop9h 21m
Delta
Deal found 6/25![Delta logo]()
$316
This Southwest deal was found by Cheapflights users on 6/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/122:35 pm
BUF
- SJU
1 stop7h 25m
Southwest
Wed 8/195:15 am
SJU
- BUF
1 stop6h 25m
Southwest
Deal found 6/27![Southwest logo]()
$318
This United Airlines deal was found by Cheapflights users on 6/25. 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 9/256:00 am
BUF
- SJU
1 stop6h 34m
United Airlines
Mon 9/281:25 pm
SJU
- BUF
2 stops10h 11m
United Airlines
Deal found 6/25![United Airlines logo]()
$319
Best flights from Buffalo to Luis Munoz Marin IntlDiscover carefully curated flight deals from Buffalo to Luis Munoz Marin Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 28, 2026.
Discover carefully curated flight deals from Buffalo to Luis Munoz Marin Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 28, 2026.
This United Airlines deal was found by Cheapflights users on 6/23. 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 10/77:00 am
BUF
- SJU
2 stops13h 38m
United Airlines
Tue 10/131:00 am
SJU
- BUF
2 stops13h 23m
United Airlines
Deal found 6/23![United Airlines logo]()
$314
This Southwest deal was found by Cheapflights users on 6/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/143:55 pm
BUF
- SJU
1 stop6h 55m
Southwest
Fri 8/215:00 am
SJU
- BUF
1 stop6h 50m
Southwest
Deal found 6/27![Southwest logo]()
$314
This Delta deal was found by Cheapflights users on 6/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/287:00 am
BUF
- SJU
1 stop9h 33m
Delta
Mon 8/317:30 am
SJU
- BUF
1 stop7h 43m
Delta
Deal found 6/27![Delta logo]()
$316
This JetBlue deal was found by Cheapflights users on 6/25. 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 8/319:57 am
BUF
- SJU
1 stop8h 08m
JetBlue
Tue 9/12:20 am
SJU
- BUF
1 stop6h 47m
JetBlue
Deal found 6/25![JetBlue logo]()
$409
This Delta deal was found by Cheapflights users on 6/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/116:05 am
BUF
- SJU
1 stop10h 44m
Delta
Thu 9/172:59 pm
SJU
- BUF
1 stop8h 55m
Delta
Deal found 6/27![Delta logo]()
$316
This Southwest deal was found by Cheapflights users on 6/25. 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 10/142:25 pm
BUF
- SJU
2 stops9h 20m
Southwest
Wed 10/215:35 am
SJU
- BUF
1 stop7h 45m
Southwest
Deal found 6/25![Southwest logo]()
$331
This United Airlines deal was found by Cheapflights users on 6/25. 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 11/76:00 am
BUF
- SJU
2 stops14h 24m
United Airlines
Wed 11/113:05 pm
SJU
- BUF
1 stop9h 16m
United Airlines
Deal found 6/25![United Airlines logo]()
$348
This Delta deal was found by Cheapflights users on 6/23. 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 11/124:00 pm
BUF
- SJU
1 stop6h 55m
Delta
Mon 11/167:15 am
SJU
- BUF
1 stop9h 21m
Delta
Deal found 6/23![Delta logo]()
$324
This Southwest deal was found by Cheapflights users on 6/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/83:10 pm
BUF
- SJU
1 stop8h 00m
Southwest
Wed 10/145:00 am
SJU
- BUF
2 stops9h 50m
Southwest
Deal found 6/26![Southwest logo]()
$359
This Southwest deal was found by Cheapflights users on 6/26. 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 8/2011:45 am
BUF
- SJU
2 stops11h 05m
Southwest
Tue 8/255:15 am
SJU
- BUF
2 stops10h 00m
Southwest
Deal found 6/26![Southwest logo]()
$391
This Southwest deal was found by Cheapflights users on 6/24. 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 10/2512:30 pm
BUF
- SJU
2 stops9h 30m
Southwest
Sun 11/15:35 am
SJU
- BUF
2 stops9h 50m
Southwest
Deal found 6/24![Southwest logo]()
$405
Last-minute flights from Buffalo to Luis Munoz Marin IntlDiscover last-minute flight deals from Buffalo to Luis Munoz Marin Intl. Data last updated June 28, 2026 and is based on user searches.
Discover last-minute flight deals from Buffalo to Luis Munoz Marin Intl. Data last updated June 28, 2026 and is based on user searches.
This Super.com deal was found by Cheapflights users on 6/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/1810:02 pm
BUF
- SJU
1 stop9h 55m
Frontier
Mon 7/203:10 am
SJU
- BUF
1 stop15h 56m
Frontier
Deal found 6/27![Frontier logo]()
$350
This Orbitz deal was found by Cheapflights users on 6/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/1810:02 pm
BUF
- SJU
1 stop12h 41m
Frontier
Mon 7/2010:48 pm
SJU
- BUF
1 stop20h 18m
Frontier
Deal found 6/27![Frontier logo]()
$369
This Cheapflightsfares deal was found by Cheapflights users on 6/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/206:00 am
BUF
- SJU
Nonstop4h 34m
JetBlue
Mon 7/276:29 pm
SJU
- BUF
Nonstop4h 38m
JetBlue
Deal found 6/27![JetBlue logo]()
$368
This Priceline deal was found by Cheapflights users on 6/25. 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 7/227:57 pm
BUF
- SJU
1 stop12h 00m
Frontier
Wed 7/294:08 pm
SJU
- BUF
1 stop24h 24m
Frontier
Deal found 6/25![Frontier logo]()
$336
This Priceline deal was found by Cheapflights users on 6/25. 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 7/227:57 pm
BUF
- SJU
1 stop14h 46m
Multiple Airlines
Wed 7/296:29 pm
SJU
- BUF
Nonstop4h 38m
Multiple Airlines
Deal found 6/25![Multiple Airlines logo]()
$356
This CheapOair deal was found by Cheapflights users on 6/25. 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.
Wed 7/227:57 pm
BUF
- SJU
1 stop12h 00m
Multiple Airlines
Fri 7/316:29 pm
SJU
- BUF
Nonstop4h 38m
Multiple Airlines
Deal found 6/25![Multiple Airlines logo]()
$361
This CheapOair deal was found by Cheapflights users on 6/24. 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.
Wed 7/227:57 pm
BUF
- SJU
1 stop14h 46m
Frontier
Mon 7/273:10 am
SJU
- BUF
1 stop15h 56m
Frontier
Deal found 6/24![Frontier logo]()
$366
This CheapOair deal was found by Cheapflights users on 6/26. 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.
Wed 7/227:57 pm
BUF
- SJU
1 stop14h 46m
Frontier
Sat 8/18:37 pm
SJU
- BUF
1 stop19h 55m
Frontier
Deal found 6/26![Frontier logo]()
$371
This Priceline deal was found by Cheapflights users on 6/25. 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 7/239:29 pm
BUF
- SJU
1 stop28h 46m
Frontier
Wed 7/294:08 pm
SJU
- BUF
1 stop24h 24m
Frontier
Deal found 6/25![Frontier logo]()
$355
This Cheapflightsfares deal was found by Cheapflights users on 6/25. 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 7/247:00 am
BUF
- SJU
Nonstop4h 35m
JetBlue
Fri 7/316:29 pm
SJU
- BUF
Nonstop4h 38m
JetBlue
Deal found 6/25![JetBlue logo]()
$367
This CheapOair deal was found by Cheapflights users on 6/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/297:57 pm
BUF
- SJU
1 stop14h 46m
Frontier
Tue 8/43:10 am
SJU
- BUF
1 stop15h 56m
Frontier
Deal found 6/28![Frontier logo]()
$346
This Cheapflightsfares deal was found by Cheapflights users on 6/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/297:00 am
BUF
- SJU
Nonstop4h 35m
JetBlue
Wed 8/56:29 pm
SJU
- BUF
Nonstop4h 38m
JetBlue
Deal found 6/28![JetBlue logo]()
$372
One-way flights from Buffalo to Luis Munoz Marin IntlSearch for one-way flight options from Buffalo to Luis Munoz Marin Intl. Find affordable one-way fares based on user searches. Data last updated June 28, 2026.
Search for one-way flight options from Buffalo to Luis Munoz Marin Intl. Find affordable one-way fares based on user searches. Data last updated June 28, 2026.
This United Airlines deal was found by Cheapflights users on 6/25. 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 9/2310:30 am
BUF
- SJU
2 stops13h 20m
United Airlines
Deal found 6/25![United Airlines logo]()
$124
This American Airlines deal was found by Cheapflights users on 6/24. 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 9/225:18 pm
BUF
- SJU
2 stops17h 42m
American Airlines
Deal found 6/24![American Airlines logo]()
$144
This SmartFares deal was found by Cheapflights users on 6/24. 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 8/87:00 am
BUF
- SJU
Nonstop4h 40m
JetBlue
Deal found 6/24![JetBlue logo]()
$148
This American Airlines deal was found by Cheapflights users on 6/24. 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 8/194:49 pm
BUF
- SJU
1 stop7h 10m
American Airlines
Deal found 6/24![American Airlines logo]()
$149
This American Airlines deal was found by Cheapflights users on 6/24. 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 8/224:54 pm
BUF
- SJU
2 stops21h 59m
American Airlines
Deal found 6/24![American Airlines logo]()
$150
This Kiwi.com deal was found by Cheapflights users on 6/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/812:28 pm
BUF
- SJU
2 stops12h 13m
Frontier
Deal found 6/24![Frontier logo]()
$151
This Kiwi.com deal was found by Cheapflights users on 6/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/1512:28 pm
BUF
- SJU
2 stops12h 13m
Frontier
Deal found 6/27![Frontier logo]()
$152
This Kiwi.com deal was found by Cheapflights users on 6/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/2211:36 am
BUF
- SJU
2 stops13h 20m
Frontier
Deal found 6/28![Frontier logo]()
$153
This United Airlines deal was found by Cheapflights users on 6/25. 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 11/146:00 am
BUF
- SJU
1 stop7h 40m
United Airlines
Deal found 6/25![United Airlines logo]()
$154
This Kiwi.com deal was found by Cheapflights users on 6/26. 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 8/2411:36 am
BUF
- SJU
2 stops13h 20m
Frontier
Deal found 6/26![Frontier logo]()
$155
This Southwest deal was found by Cheapflights users on 6/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/263:30 pm
BUF
- SJU
1 stop6h 25m
Southwest
Deal found 6/28![Southwest logo]()
$157
This United Airlines deal was found by Cheapflights users on 6/26. 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 8/276:12 am
BUF
- SJU
1 stop6h 42m
United Airlines
Deal found 6/26![United Airlines logo]()
$159
Find flight deals from Buffalo to Luis Munoz Marin Intl
Discover tips and strategies to find the most affordable flight options for your journey from Buffalo (BUF) to Luis Munoz Marin Intl (SJU). 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 28, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $302 (United Airlines) |
One-way from | $124 (United Airlines) |
Popular in | December |
Cheapest in | September |
Average price | $385 |
Good round-trip deal | $340 or less |
Good one-way deal | $158 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Buffalo to Luis Munoz Marin Intl 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 28, 2026.
Use the filters below to find and compare flights from Buffalo to San Juan Luis Munoz Marin Intl Airport that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
BuffaloSan Juan
BUF - SJU
BUFSJU
Buffalo
Wed 10/7
7:00 am-8:38 pm
2 stops13h 38m
San Juan Luis Munoz Marin Intl
Tue 10/13
1:00 am-2:23 pm
2 stops13h 23m
$314
Quickest round-trip
BuffaloSan Juan
BUF - SJU
BUFSJU
Buffalo
Fri 8/14
3:55 pm-10:50 pm
1 stop6h 55m
San Juan Luis Munoz Marin Intl
Fri 8/21
5:00 am-11:50 am
1 stop6h 50m
$314
BuffaloSan Juan
BUF - SJU
BUFSJU
Buffalo
Fri 8/28
7:00 am-4:33 pm
1 stop9h 33m
San Juan Luis Munoz Marin Intl
Mon 8/31
7:30 am-3:13 pm
1 stop7h 43m
$316
BuffaloSan Juan
BUF - SJU
BUFSJU
Buffalo
Fri 9/11
6:05 am-4:49 pm
1 stop10h 44m
San Juan Luis Munoz Marin Intl
Thu 9/17
2:59 pm-11:54 pm
1 stop8h 55m
$316
BuffaloSan Juan
BUF - SJU
BUFSJU
Buffalo
Thu 11/12
4:00 pm-11:55 pm
1 stop6h 55m
San Juan Luis Munoz Marin Intl
Mon 11/16
7:15 am-3:36 pm
1 stop9h 21m
$324
BuffaloSan Juan
BUF - SJU
BUFSJU
Buffalo
Wed 10/14
2:25 pm-11:45 pm
2 stops9h 20m
San Juan Luis Munoz Marin Intl
Wed 10/21
5:35 am-1:20 pm
1 stop7h 45m
$331
BuffaloSan Juan
BUF - SJU
BUFSJU
Buffalo
Sat 11/7
6:00 am-9:24 pm
2 stops14h 24m
San Juan Luis Munoz Marin Intl
Wed 11/11
3:05 pm-11:21 pm
1 stop9h 16m
$348
BuffaloSan Juan
BUF - SJU
BUFSJU
Buffalo
Thu 10/8
3:10 pm-11:10 pm
1 stop8h 00m
San Juan Luis Munoz Marin Intl
Wed 10/14
5:00 am-2:50 pm
2 stops9h 50m
$359
BuffaloSan Juan
BUF - SJU
BUFSJU
Buffalo
Thu 8/20
11:45 am-10:50 pm
2 stops11h 05m
San Juan Luis Munoz Marin Intl
Tue 8/25
5:15 am-3:15 pm
2 stops10h 00m
$391
BuffaloSan Juan
BUF - SJU
BUFSJU
Buffalo
Sun 10/25
12:30 pm-10:00 pm
2 stops9h 30m
San Juan Luis Munoz Marin Intl
Sun 11/1
5:35 am-2:25 pm
2 stops9h 50m
$405
Showing 1-10 of 22 resultsSorted by cheapest first
Compare providers for flights from Buffalo to Luis Munoz Marin Intl
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Buffalo to Luis Munoz Marin Intl in June.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*1 star | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star | |
| Price Accuracy- | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Buffalo-San Juan Luis Munoz Marin Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Buffalo-San Juan Luis Munoz Marin Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Buffalo-San Juan Luis Munoz Marin Intl Airport flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Buffalo-San Juan Luis Munoz Marin Intl Airport flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Buffalo-San Juan Luis Munoz Marin Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Buffalo to Luis Munoz Marin Intl
Have a flexible travel schedule? Discover the best time to fly to Luis Munoz Marin Intl from Buffalo with our price prediction graph.
BUF-SJU
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 San Juan Luis Munoz Marin Intl Airport
Prices
More
How far ahead should I book a flight from Buffalo to San Juan Luis Munoz Marin Intl Airport?
The best time to book flights from Buffalo to San Juan Luis Munoz Marin Intl Airport is 87 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
What is the cheapest month to book a flight from Buffalo to San Juan Luis Munoz Marin Intl Airport?
Currently, September is the cheapest month in which you can book a flight from Buffalo to San Juan Luis Munoz Marin Intl Airport (average of $335). Flying from Buffalo to San Juan Luis Munoz Marin Intl Airport in December is currently the most expensive (average of $566). 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 SJU?
Find hourly flight availability from Buffalo to Luis Munoz Marin Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 28, 2026.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Buffalo to San Juan Luis Munoz Marin Intl Airport as you normally would.
What’s the top layover airport for flights from Buffalo to San Juan Luis Munoz Marin Intl Airport?
Share of 1-stop round-trip flights from Buffalo to San Juan Luis Munoz Marin Intl Airport chosen by Cheapflights users in the past 12 months, using the same layover each way.
Orlando (MCO) – chosen by Cheapflights users on 71% of 1-stop itineraries from Buffalo to San Juan Luis Munoz Marin Intl Airport on Cheapflights.
What’s the cheapest layover airport for flights from Buffalo to San Juan Luis Munoz Marin Intl Airport?
Average round-trip fare for 1-stop flights from Buffalo to San Juan Luis Munoz Marin Intl Airport, chosen by Cheapflights users in the past 12 months, with the same layover each way.
New York (JFK) is the most affordable 1-stop option, with an average round-trip price of $344.
What’s the fastest layover option from Buffalo to San Juan Luis Munoz Marin Intl Airport?
Shortest average travel time for 1-stop one-way flights from Buffalo to San Juan Luis Munoz Marin Intl Airport, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.
Flights via Baltimore (BWI) have the shortest average one-way travel time for 1-stop routes: 6h 15m.
Which airport typically offers the quickest layover for flights from Buffalo to San Juan Luis Munoz Marin Intl Airport?
Average layover duration for 1-stop one-way flights from Buffalo to San Juan Luis Munoz Marin Intl Airport, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.
Flights via Baltimore (BWI) offer the fastest connection on this route, with an average layover time of 0h 45m.
Reviews of airlines servicing Luis Munoz Marin Intl
Get insights into the airlines that provide service to Luis Munoz Marin Intl. 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 Luis Munoz Marin Intl. Reviews last updated June 28, 2026.
Peruse reviews from past customers who have flown with Southwest,Delta, andAmerican Airlines from Buffalo to San Juan Luis Munoz Marin Intl Airport to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Comfort
8.0
Entertainment
7.5
Boarding
8.1
Crew
8.6
Food
7.0
Overall
7.9
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Comfort
8.0
Entertainment
7.5
Boarding
8.1
Crew
8.6
Food
7.0
Overall
7.9
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Comfort
8.0
Entertainment
7.5
Boarding
8.1
Crew
8.6
Food
7.0
Overall
7.9
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Comfort
8.0
Entertainment
7.5
Boarding
8.1
Crew
8.6
Food
7.0
Overall
7.9
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Comfort
8.0
Entertainment
7.5
Boarding
8.1
Crew
8.6
Food
7.0
Overall
7.9
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Comfort
8.0
Entertainment
7.5
Boarding
8.1
Crew
8.6
Food
7.0
Overall
7.9
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 Luis Munoz Marin Intl. 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 San Juan Luis Munoz Marin Intl Airport?
Book flights to San Juan Luis Munoz Marin Intl Airport if you plan to visit one of these locationsFajardo
Luquillo
Rio Grande
Dorado
Humacao
Bayamón
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Buffalo and Luis Munoz Marin Intl flights
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Top 6 airlines flying from Buffalo to Luis Munoz Marin Intl
Discover the top 6 airlines that operate flights from Buffalo to Luis Munoz Marin Intl. 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 28, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$106 | Average$318 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$129 | Average$277 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$208 | Average$375 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$211 | Average$474 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$225 | Average$386 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$231 | Average$452 | FlexibilityNo cancel fee | On-time71% |