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Cheap flights from Buffalo to San Juan from C$ 172

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Buffalo to San Juan departing on 15/7. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult

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Find the cheapest flights from Buffalo to San Juan

Cheap round-trip flights

United Airlines Logo
7:07 a.m. - 2:44 p.m.BUF-SJU
7h 37m1 stop
United Airlines Logo
1:05 a.m. - 1:22 p.m.SJU-BUF
12h 17m2 stops
C$ 343United Airlines
Find Deal
Fri, 26 Sep - Mon, 29 Sep
Delta Logo
6:20 a.m. - 1:10 p.m.BUF-SJU
6h 50m1 stop
Delta Logo
2:20 p.m. - 10:59 p.m.SJU-BUF
8h 39m1 stop
C$ 373Delta
Find Deal
Mon, 1 Sep - Mon, 8 Sep
Southwest Logo
4:05 p.m. - 10:45 p.m.BUF-SJU
6h 40m1 stop
Southwest Logo
1:35 p.m. - 8:20 p.m.SJU-BUF
6h 45m1 stop
C$ 403Southwest
Find Deal
Tue, 12 Aug - Tue, 19 Aug
JetBlue Logo
3:55 p.m. - 10:59 p.m.BUF-SJU
7h 04m1 stop
JetBlue Logo
3:05 a.m. - 11:56 a.m.SJU-BUF
8h 51m1 stop
C$ 442JetBlue
Find Deal
Fri, 4 Jul - Mon, 7 Jul
JetBlue Logo
3:55 p.m. - 10:59 p.m.BUF-SJU
7h 04m1 stop
JetBlue Logo
5:40 a.m. - 12:49 p.m.SJU-BUF
7h 09m1 stop
C$ 453JetBlue
Find Deal
Fri, 4 Jul - Sat, 12 Jul
JetBlue Logo
8:20 p.m. - 3:55 a.m.BUF-SJU
6h 35m1 stop
JetBlue Logo
1:59 a.m. - 8:29 a.m.SJU-BUF
7h 30m1 stop
C$ 465JetBlue
Find Deal
Tue, 4 Nov - Mon, 10 Nov
Southwest Logo
4:55 p.m. - 11:25 p.m.BUF-SJU
6h 30m1 stop
Southwest Logo
5:30 p.m. - 11:45 p.m.SJU-BUF
6h 15m1 stop
C$ 477Southwest
Find Deal
Tue, 22 Jul - Fri, 25 Jul
American Airlines Logo
1:34 p.m. - 11:31 p.m.BUF-SJU
8h 57m1 stop
American Airlines Logo
2:30 p.m. - 12:07 a.m.SJU-BUF
10h 37m1 stop
C$ 494American Airlines
Find Deal
Fri, 28 Nov - Sat, 6 Dec
Frontier Logo
9:07 p.m. - 12:32 a.m.BUF-SJU
27h 25m1 stop
Frontier Logo
3:51 p.m. - 7:47 a.m.SJU-BUF
15h 56m1 stop
C$ 505Frontier
Find Deal
Thu, 17 Jul - Thu, 24 Jul
Frontier Logo
1:12 p.m. - 2:39 a.m.BUF-SJU
13h 27m2 stops
Frontier Logo
9:30 p.m. - 7:47 a.m.SJU-BUF
10h 17m1 stop
C$ 636Frontier
Find Deal
Thu, 17 Jul - Thu, 24 Jul

United Airlines flights from Buffalo to San Juan Luis Munoz Marin Intl Airport

Our best United Airlines deals on Buffalo to San Juan Luis Munoz Marin Intl Airport flight tickets
United Airlines
26 Sep
BUF7:07 a.m.Buffalo
7h 37m
1 stop
SJU2:44 p.m.San Juan Luis Munoz Marin Intl
29 Sep
SJU1:05 a.m.San Juan Luis Munoz Marin Intl
12h 17m
2 stops
BUF1:22 p.m.Buffalo
United Airlines
20 Sep
BUF7:05 a.m.Buffalo
7h 39m
1 stop
SJU2:44 p.m.San Juan Luis Munoz Marin Intl
26 Sep
SJU1:05 a.m.San Juan Luis Munoz Marin Intl
10h 38m
2 stops
BUF11:43 a.m.Buffalo
United Airlines
26 Sep
BUF10:55 a.m.Buffalo
13h 02m
2 stops
SJU11:57 p.m.San Juan Luis Munoz Marin Intl
29 Sep
SJU1:05 a.m.San Juan Luis Munoz Marin Intl
8h 38m
2 stops
BUF9:43 a.m.Buffalo

Delta flights from Buffalo to San Juan Luis Munoz Marin Intl Airport

Our best Delta deals on Buffalo to San Juan Luis Munoz Marin Intl Airport flight tickets
Delta
1 Sep
BUF6:20 a.m.Buffalo
6h 50m
1 stop
SJU1:10 p.m.San Juan Luis Munoz Marin Intl
8 Sep
SJU2:20 p.m.San Juan Luis Munoz Marin Intl
8h 39m
1 stop
BUF10:59 p.m.Buffalo
Delta
30 Jun
BUF7:00 a.m.Buffalo
9h 28m
1 stop
SJU4:28 p.m.San Juan Luis Munoz Marin Intl
8 Jul
SJU1:34 p.m.San Juan Luis Munoz Marin Intl
11h 19m
1 stop
BUF12:53 a.m.Buffalo
Delta
6 Dec
BUF1:15 p.m.Buffalo
9h 35m
1 stop
SJU11:50 p.m.San Juan Luis Munoz Marin Intl
14 Dec
SJU7:00 a.m.San Juan Luis Munoz Marin Intl
6h 32m
1 stop
BUF12:32 p.m.Buffalo

See travel insights to San Juan from

How to get the cheapest flight ticket from Buffalo to San Juan Luis Munoz Marin Intl Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to San Juan Luis Munoz Marin Intl Airport?

The month of September is, on average, the cheapest month to fly to San Juan Luis Munoz Marin Intl Airport from Buffalo, with most prices found around C$ 388. If you don’t want to visit San Juan Luis Munoz Marin Intl Airport in September, then you should wait until May to fly from Buffalo, when ticket prices are also cheap, with an average price of C$ 481.

What is the cheapest day to depart on your flight to San Juan Luis Munoz Marin Intl Airport?

The cheapest day to depart on your flight to San Juan Luis Munoz Marin Intl Airport is on a Monday when prices can be found for as low as C$ 388. This is often the case because there is less demand to fly during this day of the week. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from Buffalo to San Juan Luis Munoz Marin Intl Airport for around C$ 884.

What is the cheapest time of day to depart on your flight to San Juan Luis Munoz Marin Intl Airport?

The cheapest time of day to fly to San Juan Luis Munoz Marin Intl Airport is in the evening when flights can be purchased for as low as C$ 594. At noon is when there is more demand to fly to San Juan Luis Munoz Marin Intl Airport, so prices are often more expensive at around C$ 695 per ticket.

How far in advance should I book a flight to San Juan Luis Munoz Marin Intl Airport?

You are more likely to see cheaper flights to San Juan Luis Munoz Marin Intl Airport from Buffalo when booking 5 weeks ahead of your departure date. In general, you can expect to find flights to San Juan Luis Munoz Marin Intl Airport for around C$ 547 when searching 5 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to San Juan Luis Munoz Marin Intl Airport from Buffalo for as low as C$ 446 on momondo.

How have Buffalo to San Juan Luis Munoz Marin Intl Airport flight prices changed over time?

As of June 2025, prices for Buffalo to San Juan Luis Munoz Marin Intl Airport flights are approximately 2% cheaper when compared to flights at the same time last year.

When to book flights from Buffalo to San Juan Luis Munoz Marin Intl Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Buffalo to San Juan Luis Munoz Marin Intl Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Buffalo to San Juan Luis Munoz Marin Intl Airport (BUF to SJU) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Buffalo to San Juan Luis Munoz Marin Intl Airport

Best price found

C$ 172

Fastest flight time

6h 19m

Direct flights

None
The best one-way flight to San Juan Luis Munoz Marin Intl Airport from Buffalo in the past 72 hours is C$ 172. The best round-trip flight deal from Buffalo to San Juan Luis Munoz Marin Intl Airport found on momondo in the last 72 hours is C$ 343.
The fastest flight from Buffalo to San Juan Luis Munoz Marin Intl Airport takes 6h 19m
There are no direct flights from Buffalo to San Juan Luis Munoz Marin Intl Airport. Popular non-direct route for this connection is Buffalo Airport - San Juan Luis Munoz Marin Intl Airport.

  • How far is Buffalo to San Juan Luis Munoz Marin Intl by plane?

    San Juan Luis Munoz Marin Intl is 2974.1 km away from Buffalo. Typically, this will take 6h 19m by plane in normal conditions.

  • When did momondo last update prices for flights from Buffalo Airport to San Juan Luis Munoz Marin Intl Airport?

    Prices for flights from Buffalo Airport to San Juan Luis Munoz Marin Intl Airport were last updated today.

  • How many operators does momondo search for flights from Buffalo Airport to San Juan Luis Munoz Marin Intl Airport?

  • How old do you have to be to fly from Buffalo Airport to San Juan Luis Munoz Marin Intl Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Buffalo Airport to San Juan Luis Munoz Marin Intl Airport.

  • What documentation or ID do you need to fly to San Juan Luis Munoz Marin Intl Airport?

    The travel and health documents you'll need for your trip to San Juan Luis Munoz Marin Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at San Juan Luis Munoz Marin Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from Buffalo to San Juan Luis Munoz Marin Intl Airport?


Best airlines flying from Buffalo to San Juan Luis Munoz Marin Intl Airport

Compare and see reviews for airlines that fly from Buffalo to San Juan Luis Munoz Marin Intl Airport with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom C$ 164Free CancellationRating
8.0
7,946 reviews
Search Delta flights
FrontierPriceFrom C$ 232Free CancellationRating
5.9
3,295 reviews
Search Frontier flights
JetBluePriceFrom C$ 339Free CancellationRating
7.3
2,925 reviews
Search JetBlue flights
SouthwestPriceFrom C$ 459Free CancellationRating
8.0
4,287 reviews
Search Southwest flights
United AirlinesPriceFrom C$ 507Free CancellationRating
7.4
8,790 reviews
Search United Airlines flights

Travelling to a place near San Juan?

Book flights to San Juan if you plan to visit one of these locations
Rio Grande
Carolina
Humacao
Fajardo
Dorado

Why use momondo?

Why should I use momondo to find a flight deal from Buffalo to San Juan?

Finding the right flight to San Juan from Buffalo is quick and easy when you have a range of options in front of you, from reputable agents and recognizable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to San Juan quick and easy, saving you time and money.

Can I find flights from Buffalo to San Juan with flexible booking policies on momondo?

momondo does allow users to show only those flights to San Juan from Buffalo which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Buffalo to San Juan?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to San Juan from Buffalo.

I’m not ready to book a flight from Buffalo to San Juan right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Buffalo to San Juan flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.


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Tue 17/6
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