$423 Cheap Flights from Cancun (CUN) to Posadas (PSS)

View $423 flight on Mon, Mar 2, 2026Opens in a new window

Popular airlines from Cancun Intl. Airport (CUN) to Posadas (PSS-Libertador General Jose de San Martin)

Cheap Flights from Cancun to Posadas (CUN-PSS)

Prices were available within the past 7 days and start at $423 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 Cancun Intl. Airport (CUN) to Libertador General Jose de San Martin Airport (PSS) cost?
Lock in a cheap one-way flight from $423 or cheap return flight from Cancun Intl. Airport (CUN) 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 Cancun Intl. Airport (CUN) to Libertador General Jose de San Martin Airport (PSS)?
is the cheapest month to fly from CUN to PSS. Avoiding peak travel times is often the key to scoring lower fares.
What is the cheapest airline that flies from Cancun Intl. Airport (CUN) to Libertador General Jose de San Martin Airport (PSS)?
To find the cheapest airline flying from CUN to PSS, use Expedia's filter tool. Tailor your search based on what matters most to you, such as preferred carriers and ideal departure window. You can then sort your results by "Price (lowest to highest)" to list the most affordable options first.
How many flights per day from Cancun Intl. Airport (CUN) to Libertador General Jose de San Martin Airport (PSS)?
There are no daily direct flights departing from Cancun Intl. Airport (CUN) to Libertador General Jose de San Martin Airport (PSS). But you can choose flights with layovers. Filter your search results on Expedia to include one or more stops, and you'll be soaring above the clouds in no time at all.
What day of the week has the most flights from CUN to PSS?
You'll generally find Tuesday the quietest day for flights, while Fridays are often the busiest.* However this can change from season to season and during public holidays or peak travel times.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Cancun Intl. Airport (CUN) to Libertador General Jose de San Martin Airport (PSS)?
To avoid possible delays on the Cancun Intl. Airport (CUN) to Libertador General Jose de San Martin Airport (PSS) route, travel before 3 PM. Departures after this time are 22% more likely to be canceled.**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 Cancun Intl. Airport (CUN) to Libertador General Jose de San Martin Airport (PSS) last-minute?
Booking your flight from CUN to PSS right before your journey is generally more expensive. However, if you're flexible with your travel dates and times, you could grab a cheap last-minute fare.
Is it cheaper to book a CUN to PSS flight and hotel package?
Booking a CUN to PSS flight and hotel package is generally cheaper than booking separately. With Expedia, you can enjoy the convenience of organizing your travels in one place. Select from our impressive range of accommodations and then add activities, car rentals and flights to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Cancun Intl. Airport (CUN) to Libertador General Jose de San Martin Airport (PSS)?
If you booked your CUN to PSS flight in the last 24 hours, you may be able to cancel or modify it at no cost. Depending on the airline and the ticket type you purchased, additional charges may apply for changes after that time. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Cancun Intl.
Destination airport
Libertador General Jose de San Martin
Distance
3932 mi

Book with confidence

Cancun to Posadas Flights

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

 

The best time to book a flight from Cancun to Posadas

Sunday is one of the best days to book for cheap flights from Cancun 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 Cancun 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 Cancun to Posadas in 2025. You can also book with separate airlines for your outbound and return journeys, from $423 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 Cancun 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 Cancun 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.

 

Cancun to Posadas Flights

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*Available to One Key members.