Cheap Flights from Buffalo (BUF) to Posadas (PSS)

Popular airlines from Buffalo Niagara Intl. Airport (BUF) to Posadas (PSS-Libertador General Jose de San Martin)

Flights from Buffalo (BUF) to Posadas (PSS)
Origin airport
Buffalo Niagara Intl.
Destination airport
Libertador General Jose de San Martin
Distance
5069 mi

Buffalo to Posadas Flights

The cheapest times to fly from Buffalo to Posadas

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Buffalo to Posadas are during the month of . You can find some of the cheapest flights from Buffalo to Posadas with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Buffalo to Posadas

Sunday is one of the best days to book for cheap flights from Buffalo to Posadas: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Buffalo to Posadas

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Buffalo to Posadas in 2025. You can also book with separate airlines for your outbound and return journeys, from one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Buffalo to Posadas flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Buffalo to Posadas airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Buffalo Niagara Intl. Airport (BUF) to Libertador General Jose de San Martin Airport (PSS) cost?
Lock in a cheap one-way flight or cheap return flight from Buffalo Niagara Intl. Airport (BUF) to Libertador General Jose de San Martin Airport (PSS) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from Buffalo Niagara Intl. Airport (BUF) to Libertador General Jose de San Martin Airport (PSS)?
is the most affordable month to fly from BUF to PSS. Timing your trip outside of the busy season is often the key to scoring lower fares.
What is the cheapest airline that flies from Buffalo Niagara Intl. Airport (BUF) to Libertador General Jose de San Martin Airport (PSS)?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll fly you from BUF to PSS. Then, sort your results by "Price (lowest to highest)" to score a good deal.
How many flights per day from Buffalo Niagara Intl. Airport (BUF) to Libertador General Jose de San Martin Airport (PSS)?
Direct flights from Buffalo Niagara Intl. Airport (BUF) to Libertador General Jose de San Martin Airport (PSS) aren't available daily, so you'll need to take a flight with a layover. Explore your options with Expedia's filters. Enter your travel dates and pick either "1 Stop" or "2+ Stops."
What day of the week has the most flights from BUF to PSS?
Friday is typically the busiest day for flights, while Tuesday tends to be the quietest.* Remember that flight schedules can change depending on various factors, such as the carrier and season.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Buffalo Niagara Intl. Airport (BUF) to Libertador General Jose de San Martin Airport (PSS)?
To reach Libertador General Jose de San Martin Airport (PSS) on schedule, opt for a flight that leaves Buffalo Niagara Intl. Airport (BUF) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this hour.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Buffalo Niagara Intl. Airport (BUF) to Libertador General Jose de San Martin Airport (PSS) last-minute?
Booking your plane ticket from BUF to PSS right before your getaway is generally more expensive. But if you're flexible with your schedule, you could grab a cheap last-minute fare.
Is it cheaper to book a BUF to PSS flight and hotel package?
You'll generally save money by securing a BUF to PSS flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's simple to manage it all in one place. After choosing your preferred flights and accommodations, consider adding extras including car rentals, tours and activities.
Can I cancel or change the date of my flight from Buffalo Niagara Intl. Airport (BUF) to Libertador General Jose de San Martin Airport (PSS)?
In most instances, you can reschedule or cancel your BUF to PSS flight. However, there may be additional charges, especially if you made your booking more than 24 hours ago. Double-check your itinerary for the airline's policies and fees on flight changes, or if you want more information, visit our Customer Service portal.

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*Available to One Key members.