$138 Cheap United flights from Buffalo to San Juan (BUF to SJU)

Find The Best Day To Fly from Buffalo to San Juan

Amazing United BUF to SJU Flight Deals

The cheapest flights to Luis Munoz Marin Intl. found within the past 7 days were $268 round trip and $138 one way. Prices and availability subject to change. Additional terms may apply.

Wed, Nov 12 - Tue, Nov 18
BUF
Buffalo
SJU
San Juan
$268 Roundtrip, found 5 days ago
$268
Roundtrip
found 5 days ago
Select United flight, departing Wed, Nov 12 from Buffalo to San Juan, returning Tue, Nov 18, priced at $268 found 5 days ago

SJU From BUF Economy Coach Packages on Similar Airlines

Price found within the past 48 hours. Click for updated prices.
Hotel Puerto Valdes

Hotel Puerto Valdes

4 out of 5
Save 100% on your flight
Price was $1,097, price is now $621 per person
$621
per person
Jan 22 - Jan 26
found 20 hours ago
Roundtrip non-stop flight included
Buffalo (BUF) to San Juan (SJU)
Ola Boutique Hotel

Ola Boutique Hotel

4.5 out of 5
Price was $1,888, price is now $875 per person
$875
per person
Jan 22 - Jan 26
found 20 hours ago
Roundtrip non-stop flight included
Buffalo (BUF) to San Juan (SJU)
Aire de O:live

Aire de O:live

4 out of 5
Save 100% on your flight
Price was $1,768, price is now $1,033 per person
$1,033
per person
Jan 22 - Jan 26
found 20 hours ago
Roundtrip non-stop flight included
Buffalo (BUF) to San Juan (SJU)
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Frequently asked questions

Can I catch a flight from Buffalo Niagara Intl. Airport (BUF) to Luis Munoz Marin Intl. Airport (SJU) right now?
It's always prudent to know about any travel advice reports and quarantine requirements in effect in your destination. Make sure you go to the Covid-19 Travel Advisor for up-to-date information on booking a flight to Isla Verde Intl. Airport.
What terminal is United Airlines at Buffalo Niagara Intl. Airport (BUF)?
Before you travel from Buffalo Niagara International Airport to SJU with United Airlines, it's probably a good idea to get in touch with the airline for your terminal information. While your boarding pass should contain some of the relevant details, we can't guarantee it.
Are there United Airlines non-stop flights from BUF to SJU?
If you're flying with United Airlines from BUF to SJU, you'll have to make a stopover. While you're waiting for your connection, take the chance to grab a coffee or stretch your legs.
How long is a United Airlines flight from BUF to SJU?
As it will take approximately 5 hours and 42 minutes for your United Airlines flight to journey from BUF to SJU, think about packing some travel games in your hand luggage. You never know — the passenger beside you might love the chance to play to break up the trip.
How many direct and indirect flights does United Airlines fly from BUF to SJU?
When journeying from BUF to SJU, you'll discover at least 3 United Airlines daily flights to pick from.
If I am not able to travel due to COVID-19, can I change my booking to a later date?
For more info about changing your flight to SJU, please visit our Customer Service Portal.
What is the best day to buy a plane ticket?
This just in! Airfares offered on Thursdays tend to be the cheapest, according to flight demand on Travelocity in 2021. Tuesday and Wednesday prices are also good, but you may want to prepare your budget if booking during the weekend, as data shows that is when prices are generally at their highest.
What are the cheapest days to fly?
Frequent travelers may already know this, but earlier in the week can be the cheapest time to fly. In 2021, flights departing on a Monday were generally the cheapest of the week, whereas you may pay a premium for weekend flights when demand is usually high. On average, tickets were most expensive for Saturday departures, so if you need to fly out on a weekend, you might look for deals ahead of time.
How far in advance can you book a flight?
Trying to figure out how early you should book your flight? It's possible to start comparing international airfares on Travelocity up to 12 months in advance. However, it does depend on the carrier as not all airlines release their prices that far out. According to our 2021 flight demand trends, last minute planners can still bag a bargain with some of the cheapest fares appearing 0-2 weeks prior to their travel dates.*According to flight demand on Travelocity.com from January to December 2021. Savings are subject to change based on departure location, date and destination.

Discover our best United flight from Buffalo BUF to San Juan SJU 

To find the best deals on flights to Buffalo from San Juan with United, just enter your travel dates, filter by United, and hit search. You’ll find flights to choose from and can sort by price, flight duration, and arrival or departure time.  

 

Return flights from Buffalo BUF to San Juan SJU with United 

If you’re planning a round trip, booking return flights with United is usually the most cost-effective option. With airfares ranging from $268 to $268, it’s easy to find a flight that suits your budget. Prices and availability subject to change. Additional terms may apply. 

 

Book one-way United flights from Buffalo BUF to San Juan SJU 

A one-way ticket gives you much greater flexibility—allowing you to choose your return date, destination, and time whenever you’re ready. By booking in advance you can find great deals on one-way tickets too. Right now, a one-way United flight from Buffalo to San Juan costs from $138. Prices and availability subject to change. Additional terms may apply. 

 

The easy way to find cheap flights to San Juan SJU from  Buffalo BUF with United 

To find a cheap United flight from Buffalo BUF to San Juan SJU, sort your search results by price or filter by budget. Thanks to Travelocity’s Price Match Promise, if you find a better airfare deal anywhere else within 24 hours, we’ll credit or refund the difference. 

 

How to find our best airfare deals on United flights from Buffalo BUF to San Juan SJU 

If you’re looking for cheap flights, it helps to be flexible when it comes to your travel dates. You’ll usually find lower cost tickets when you travel during quieter months such as November, or if you book a flight with a stopover. 

 

Find nonstop flights from Buffalo BUF to San Juan SJU with United 

If you’re keen to be on San Juan soil fast, don’t waste time with a stopover—filter your search results to show direct United flights only. The journey takes around hour(s) min(s) – so you’ll be there before you know it. 

 

Flexible airline tickets for United flights from Buffalo BUF to San Juan SJU 

Make sure you’re not out of pocket if plans change by choosing a flexible ticket with penalty-free amendment and cancellation options. Use our ‘no change fee’ filter to see which flights have this option.  

 

There are a lot of reasons to book your flights to San Juan SJU from  Buffalo BUF with United on Travelocity 

At Travelocity our vast and up-to-the-minute inventory puts all of our best flight deals in one place. So, whether you’re traveling on business or jetting off with friends and family, you can trust Travelocity to get you there.

United Airports
Hop on a(n) United flight today by flying to many destinations out of these domestic and international airports:
Airport code
Country
Airport name
Number of flights
ORDUSAO'Hare Intl.227
DENUSADenver Intl.226
IAHUSAGeorge Bush Intercontinental136
IADUSAWashington Dulles Intl.100
SFOUSASan Francisco Intl.64
LAXUSALos Angeles Intl.23
EWRUSALiberty Intl.20
FRADEUFrankfurt Intl.19
NRTJPNNarita Intl.19
PEKCHNCapital Intl.16

Travelers ❤️ these 🏨 after their flight to San Juan

The Royal Sonesta San Juan

The Royal Sonesta San Juan

4 out of 5
5961 Isla Verde Avenue, Carolina
A full-service spa, 6 restaurants, and an outdoor pool are all featured at this smoke-free resort. Enjoy beachfront dining and relax with sun loungers and beach ...
9/10 Wonderful! (2,112 reviews)
Food, staff, the pool, the beach, was amazing!! I wish the balcony was a bit bigger as it is kind of scary. But I would definitely come back here! 10/10

Reviewed on Nov 8, 2025

The Royal Sonesta San Juan
San Juan Airport Hotel

San Juan Airport Hotel

3 out of 5
LMM International Airport, Terminal D Airport Hotel (SJU), Carolina
This hotel features 10 beach bars, a bar/lounge, and a restaurant. Traveling on business? Take advantage of the 24-hour business center and free WiFi in public ...
8.2/10 Very Good! (5,321 reviews)
We loved this place for a quick sleep after a late flight

Reviewed on Nov 8, 2025

San Juan Airport Hotel
Embassy Suites by Hilton San Juan Hotel & Casino

Embassy Suites by Hilton San Juan Hotel & Casino

3.5 out of 5
8000 Tartak Street, Carolina
A casino, a 24-hour gym, and a restaurant are all featured at this smoke-free resort. There's fun for all ages with a children's pool and a playground, and barbecue ...
9/10 Wonderful! (4,204 reviews)
Excellent facility

Reviewed on Nov 9, 2025

Embassy Suites by Hilton San Juan Hotel & Casino
Lowest nightly price found within the past 24 hours based on a 1 night stay for 2 adults. Prices and availability subject to change. Additional terms may apply.
*Price based on the lowest price found within past 24 hours and based upon one night stay for two adults over the next thirty days. Prices and availability subject to change. Additional terms may apply.