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Cheap flights from San Juan Luis Munoz Marin Intl Airport to Buffalo from $103

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from San Juan Luis Munoz Marin Intl Airport to Buffalo departing on 9/18. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from San Juan Luis Munoz Marin Intl Airport to Buffalo

Cheap round-trip flights

Delta Logo
1:32 pm - 12:21 amSJU-BUF
10h 49m1 stop
Delta Logo
7:00 am - 4:20 pmBUF-SJU
9h 20m1 stop
$205Delta
Find Deal
Fri, Sep 19 - Mon, Sep 22
American Airlines Logo
5:30 am - 6:18 pmSJU-BUF
12h 48m1 stop
American Airlines Logo
7:30 am - 11:52 pmBUF-SJU
15h 22m1 stop
$215American Airlines
Find Deal
Fri, Oct 24 - Sun, Nov 2
Southwest Logo
11:10 am - 11:10 pmSJU-BUF
12h 00m1 stop
Southwest Logo
6:50 am - 4:20 pmBUF-SJU
9h 30m1 stop
$220Southwest
Find Deal
Thu, Sep 11 - Sun, Sep 14
Southwest Logo
5:50 am - 12:00 pmSJU-BUF
6h 10m1 stop
Southwest Logo
6:50 am - 4:20 pmBUF-SJU
9h 30m1 stop
$235Southwest
Find Deal
Thu, Sep 11 - Sun, Sep 14
Frontier Logo
3:39 am - 5:27 pmSJU-BUF
13h 48m1 stop
Frontier Logo
6:59 pm - 2:34 amBUF-SJU
7h 35m1 stop
$264Frontier
Find Deal
Wed, Sep 17 - Mon, Sep 22
Frontier Logo
4:42 pm - 6:14 pmSJU-BUF
25h 32m1 stop
Frontier Logo
6:59 pm - 2:34 amBUF-SJU
7h 35m1 stop
$273Frontier
Find Deal
Fri, Sep 5 - Fri, Sep 19
JetBlue Logo
2:25 pm - 10:07 pmSJU-BUF
7h 42m1 stop
JetBlue Logo
6:00 am - 12:42 pmBUF-SJU
6h 42m1 stop
$282JetBlue
Find Deal
Thu, Sep 18 - Sun, Sep 21
United Airlines Logo
1:05 am - 9:46 amSJU-BUF
8h 41m2 stops
United Airlines Logo
6:30 am - 1:45 pmBUF-SJU
7h 15m1 stop
$295United Airlines
Find Deal
Fri, Sep 19 - Sat, Sep 27
JetBlue Logo
6:00 am - 8:53 amSJU-BUF
26h 53m1 stop
JetBlue Logo
6:00 am - 12:42 pmBUF-SJU
6h 42m1 stop
$308JetBlue
Find Deal
Sun, Sep 21 - Thu, Sep 25
United Airlines Logo
1:05 am - 10:01 amSJU-BUF
8h 56m1 stop
United Airlines Logo
4:23 pm - 11:57 pmBUF-SJU
7h 34m1 stop
$310United Airlines
Find Deal
Tue, Sep 23 - Sun, Sep 28

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

Our best Frontier deals on San Juan Luis Munoz Marin Intl Airport to Buffalo flight tickets
Frontier
Sep 17
SJU3:39 amSan Juan Luis Munoz Marin Intl
13h 48m
1 stop
BUF5:27 pmBuffalo
Sep 22
BUF6:59 pmBuffalo
7h 35m
1 stop
SJU2:34 amSan Juan Luis Munoz Marin Intl
$264
Find similar
Frontier
Sep 5
SJU4:42 pmSan Juan Luis Munoz Marin Intl
25h 32m
1 stop
BUF6:14 pmBuffalo
Sep 19
BUF6:59 pmBuffalo
7h 35m
1 stop
SJU2:34 amSan Juan Luis Munoz Marin Intl
$273
Find similar
Frontier
Sep 11
SJU9:07 amSan Juan Luis Munoz Marin Intl
8h 20m
1 stop
BUF5:27 pmBuffalo
Sep 14
BUF7:41 pmBuffalo
12h 21m
1 stop
SJU8:02 amSan Juan Luis Munoz Marin Intl
$274
Find similar

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

Our best American Airlines deals on San Juan Luis Munoz Marin Intl Airport to Buffalo flight tickets
American Airlines
Oct 24
SJU5:30 amSan Juan Luis Munoz Marin Intl
12h 48m
1 stop
BUF6:18 pmBuffalo
Nov 2
BUF7:30 amBuffalo
15h 22m
1 stop
SJU11:52 pmSan Juan Luis Munoz Marin Intl
$215
Find similar
American Airlines
Oct 24
SJU4:45 pmSan Juan Luis Munoz Marin Intl
6h 58m
1 stop
BUF11:43 pmBuffalo
Oct 31
BUF10:35 amBuffalo
13h 24m
1 stop
SJU11:59 pmSan Juan Luis Munoz Marin Intl
$221
Find similar
American Airlines
Oct 10
SJU5:30 amSan Juan Luis Munoz Marin Intl
12h 48m
1 stop
BUF6:18 pmBuffalo
Oct 13
BUF11:35 amBuffalo
12h 24m
1 stop
SJU11:59 pmSan Juan Luis Munoz Marin Intl
$245
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from San Juan Luis Munoz Marin Intl Airport to Buffalo that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated August 25, 2025.
Use the filters below to find and compare flights from San Juan Luis Munoz Marin Intl Airport to Buffalo that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

San JuanBuffalo

SJU - BUF

SJUBUF

San Juan Luis Munoz Marin Intl

Fri 9/19

1:32 pm-12:21 am

1 stop10h 49m

Buffalo

Mon 9/22

7:00 am-4:20 pm

1 stop9h 20m

$205

San JuanBuffalo

SJU - BUF

SJUBUF

San Juan Luis Munoz Marin Intl

Fri 10/24

5:30 am-6:18 pm

1 stop12h 48m

Buffalo

Sun 11/2

7:30 am-11:52 pm

1 stop15h 22m

$215

San JuanBuffalo

SJU - BUF

SJUBUF

San Juan Luis Munoz Marin Intl

Thu 9/11

11:10 am-11:10 pm

1 stop12h 00m

Buffalo

Sun 9/14

6:50 am-4:20 pm

1 stop9h 30m

$220

San JuanBuffalo

SJU - BUF

SJUBUF

San Juan Luis Munoz Marin Intl

Thu 9/11

5:50 am-12:00 pm

1 stop6h 10m

Buffalo

Sun 9/14

6:50 am-4:20 pm

1 stop9h 30m

$235

San JuanBuffalo

SJU - BUF

SJUBUF

San Juan Luis Munoz Marin Intl

Wed 9/17

3:39 am-5:27 pm

1 stop13h 48m

Buffalo

Mon 9/22

6:59 pm-2:34 am

1 stop7h 35m

$264

San JuanBuffalo

SJU - BUF

SJUBUF

San Juan Luis Munoz Marin Intl

Fri 9/5

4:42 pm-6:14 pm

1 stop25h 32m

Buffalo

Fri 9/19

6:59 pm-2:34 am

1 stop7h 35m

$273

San JuanBuffalo

SJU - BUF

SJUBUF

San Juan Luis Munoz Marin Intl

Thu 9/18

2:25 pm-10:07 pm

1 stop7h 42m

Buffalo

Sun 9/21

6:00 am-12:42 pm

1 stop6h 42m

$282

San JuanBuffalo

SJU - BUF

SJUBUF

San Juan Luis Munoz Marin Intl

Fri 9/19

1:05 am-9:46 am

2 stops8h 41m

Buffalo

Sat 9/27

6:30 am-1:45 pm

1 stop7h 15m

$295

San JuanBuffalo

SJU - BUF

SJUBUF

San Juan Luis Munoz Marin Intl

Sun 9/21

6:00 am-8:53 am

1 stop26h 53m

Buffalo

Thu 9/25

6:00 am-12:42 pm

1 stop6h 42m

$308

San JuanBuffalo

SJU - BUF

SJUBUF

San Juan Luis Munoz Marin Intl

Tue 9/23

1:05 am-10:01 am

1 stop8h 56m

Buffalo

Sun 9/28

4:23 pm-11:57 pm

1 stop7h 34m

$310

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Buffalo from

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

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 Buffalo?

If you aren’t able to travel during the month of September, then book flights to Buffalo from San Juan Luis Munoz Marin Intl Airport during February instead. Flights to Buffalo in February, while not as cheap as those in September, still average around $308.

What is the cheapest day to depart on your flight to Buffalo?

Our data shows that Thursday is the least expensive day to fly to Buffalo. Tickets to fly out on this day can be as low as $317. Flights from San Juan Luis Munoz Marin Intl Airport to Buffalo on a Sunday will generally be more expensive and average around $410. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Buffalo?

In the evening is the cheapest time of day to fly from San Juan Luis Munoz Marin Intl Airport to Buffalo when you can find flight prices for as low as $327. Flying to Buffalo in the evening is an ideal time because this is during off-peak travel hours. In the afternoon is when there is more demand to fly to Buffalo, so prices are often more expensive at around $412 per ticket.

How far in advance should I book a flight to Buffalo?

You are more likely to see cheaper flights to Buffalo from San Juan Luis Munoz Marin Intl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Buffalo for around $359 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Buffalo from San Juan Luis Munoz Marin Intl Airport for as low as $286 on momondo.

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

As of August 2025, prices for San Juan Luis Munoz Marin Intl Airport to Buffalo flights are approximately 29% cheaper when compared to flights at the same time last year.

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

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

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

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

Direct flights

None
There are no direct flights from San Juan Luis Munoz Marin Intl Airport to Buffalo. There are no popular flight routes from San Juan Luis Munoz Marin Intl Airport to Buffalo.
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  • How far is San Juan Luis Munoz Marin Intl to Buffalo by plane?

    The distance between San Juan Luis Munoz Marin Intl and Buffalo is about 1848.0 mi. Flights usually cover this in 6h 10m, depending on flying conditions and air traffic around both airports.

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

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

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

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

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from San Juan Luis Munoz Marin Intl Airport to Buffalo Airport.

  • What documentation or ID do you need to fly to Buffalo Airport?

    The travel and health documents you'll need for your trip to Buffalo 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 Buffalo 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 San Juan Luis Munoz Marin Intl Airport to Buffalo?

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

Compare and see reviews for airlines that fly from San Juan Luis Munoz Marin Intl Airport to Buffalo with momondo
Airline
Rating
Free Cancellation
Price
DeltaPriceFrom $120Free CancellationRating
7.9
7,981 reviews
Search Delta flights
FrontierPriceFrom $159Free CancellationRating
5.8
3,201 reviews
Search Frontier flights
American AirlinesPriceFrom $215Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
SouthwestPriceFrom $261Free CancellationRating
8.0
4,243 reviews
Search Southwest flights
JetBluePriceFrom $264Free CancellationRating
7.2
2,919 reviews
Search JetBlue flights
United AirlinesPriceFrom $370Free CancellationRating
7.4
8,940 reviews
Search United Airlines flights

Traveling to a place near Buffalo?

Book flights to Buffalo if you plan to visit one of these locations
Batavia
Cheektowaga
Tonawanda
Amherst
Williamsville
Grand Island
Lockport
Orchard Park
West Seneca
East Aurora
Eden
Angola
Bowmansville

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from San Juan to Buffalo. momondo saves you time and could save you money on your trip.

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

Yes. All flights to Buffalo from San Juan on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

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 Buffalo from San Juan.

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

Yes. momondo can track prices for San Juan to Buffalo 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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