$1,589 Cheap Flights from Bilbao (BIO) to Posadas (PSS)

View $1,589 flight on Tue, Oct 21, 2025Opens in a new window

Popular airlines from Bilbao Airport (BIO) to Posadas (PSS-Libertador General Jose de San Martin)

Cheap Flights from Bilbao to Posadas (BIO-PSS)

Prices were available within the past 7 days and start at $1,589 for one-way flights and for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frequently asked questions

How much does a flight from Bilbao Airport (BIO) to Libertador General Jose de San Martin Airport (PSS) cost?
Secure a cheap one-way flight from $1,589 or cheap return flight from Bilbao Airport (BIO) 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 Bilbao Airport (BIO) to Libertador General Jose de San Martin Airport (PSS)?
is the least expensive month to fly from BIO to PSS. Traveling during quieter months is often the key to landing a great deal.
What is the cheapest airline that flies from Bilbao Airport (BIO) to Libertador General Jose de San Martin Airport (PSS)?
Expedia's filter tool lets you easily compare different airlines, flight durations and fares all in one place. Select your preferences, then sort by "Price (lowest to highest)" to see which carrier offers the cheapest BIO to PSS flight.
How many flights per day from Bilbao Airport (BIO) to Libertador General Jose de San Martin Airport (PSS)?
You'll need to book a flight with a layover when traveling from Bilbao Airport (BIO) to Libertador General Jose de San Martin Airport (PSS). There are no daily direct flights on this route. However, simply filter your search to include one or two stops to find an option that works for you.
What day of the week has the most flights from BIO to PSS?
Friday is typically the busiest day for flights, while Tuesday is often the quietest.* Just remember that flight schedules can vary based on various factors, including 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 Bilbao Airport (BIO) to Libertador General Jose de San Martin Airport (PSS)?
To avoid possible delays on the Bilbao Airport (BIO) to Libertador General Jose de San Martin Airport (PSS) route, aim to travel before 3 PM. Flights after this time have a 22% higher chance of cancellation.**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 Bilbao Airport (BIO) to Libertador General Jose de San Martin Airport (PSS) last-minute?
Holding off until just before your departure to book your flight from BIO to PSS often results in higher prices. While you may come across some last-minute deals, there's no guarantee. Keep your travel schedule open for the best chance of landing a bargain.
Is it cheaper to book a BIO to PSS flight and hotel package?
Compared with arranging flights and hotels separately, booking a BIO to PSS flight and hotel package with Expedia could lead to significant savings. Better yet, having everything in one easy place takes the hassle out of travel planning. Simply secure your flights and choose from our wide range of hotels, then personalize your trip with other add-ons like activities, tours and car rentals.
Can I cancel or change the date of my flight from Bilbao Airport (BIO) to Libertador General Jose de San Martin Airport (PSS)?
In most cases, you can cancel or reschedule your BIO to PSS flight. However, there may be additional fees, especially if your booking was made over 24 hours ago. Double-check your itinerary for the airline's fees and rules on flight changes, or if you need further information, visit our Customer Service portal.

Travel information

Origin airport
Bilbao
Destination airport
Libertador General Jose de San Martin
Distance
5929 mi

Book with confidence

Bilbao to Posadas Flights

The cheapest times to fly from Bilbao 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 Bilbao to Posadas are during the month of . You can find some of the cheapest flights from Bilbao to Posadas with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Bilbao to Posadas

Sunday is one of the best days to book for cheap flights from Bilbao 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 Bilbao 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 Bilbao to Posadas in 2025. You can also book with separate airlines for your outbound and return journeys, from $1,589 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 Bilbao 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 Bilbao 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.

 

Bilbao to Posadas Flights

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*Available to One Key members.