Cheap Flights from San Salvador (SAL) to Asuncion (ASU)

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Find available prices by choosing your travel dates.
Flights from San Salvador (SAL) to Asuncion (ASU)
Origin airport
El Salvador Intl.
Destination airport
Silvio Pettirossi Intl.
Airlines serving
American Airlines, Copa, United, avianca
Distance
3414 mi

San Salvador to Asuncion Flights

The cheapest times to fly from San Salvador to Asuncion

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 San Salvador to Asuncion are during the month of . You can find some of the cheapest flights from San Salvador to Asuncion with Expedia's search tool and vast selection of airlines.

The best time to book a flight from San Salvador to Asuncion

Sunday is one of the best days to book for cheap flights from San Salvador to Asuncion: 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 San Salvador to Asuncion

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 San Salvador to Asuncion 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 San Salvador to Asuncion 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 San Salvador to Asuncion 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

Is it cheaper to buy a plane ticket from SAL to ASU last minute?
When it’s time to book your flights, it pays to be prepared. While it’s possible to score a last-minute deal on an El Salvador Intl. Airport Saint Oscar Arnulfo Romero y Galdámez to ASU flight, tickets usually don’t get cheaper as the departure date nears. Based on flight pricing and demand studies in 2022, we have found that the sweet spot to lock in a domestic flight is between 28 – 35 days ahead. For international trips it’s three to four months.
What airports do you fly into for Asuncion from San Salvador?
Silvio Pettirossi Intl. Airport (ASU) is where all San Salvador to Asuncion flights come in to land. It’s around 9 mi east of central Asuncion. You’ll land the best deals on flights, hotels and activities when you book your Asuncion trip with Expedia.
Can I change the date of my flight from El Salvador Intl. Airport Saint Oscar Arnulfo Romero y Galdámez to ASU?
It’s easy to make amendments to your El Salvador Intl. Airport Saint Oscar Arnulfo Romero y Galdámez to ASU trip yourself. Simply log in to the Expedia Trips portal and select “change flight.” Look around for new flights and choose the one that works with your new plans. You’ll get an estimate of applicable flight change costs. Alternatively, visit our Customer Service portal to connect with our Virtual Agent and get answers to all your questions.

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*Available to One Key members.