$395 Cheap Flights from San Diego (SAN) to Asuncion (ASU)

View $395 flight on Fri, Dec 5, 2025Opens in a new window

Popular airlines from San Diego Intl. Airport (SAN) to Asuncion (ASU-Silvio Pettirossi Intl.)

Cheap Flights from San Diego to Asuncion (SAN-ASU)

Prices were available within the past 7 days and start at $395 for one-way flights and $838 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Copa
Fri, Dec 5 - Fri, Dec 19
SAN
San Diego
ASU
Asuncion
$838 Roundtrip, found 12 hours ago
$838
Roundtrip
found 12 hours ago
Select Copa flight, departing Fri, Dec 5 from San Diego to Asuncion, returning Fri, Dec 19, priced at $838 found 12 hours ago
United
Wed, Nov 12 - Mon, Nov 24
SAN
San Diego
ASU
Asuncion
$853 Roundtrip, found 9 hours ago
$853
Roundtrip
found 9 hours ago
Select United flight, departing Wed, Nov 12 from San Diego to Asuncion, returning Mon, Nov 24, priced at $853 found 9 hours ago
Delta
Mon, Feb 9 - Sun, Feb 15
SAN
San Diego
ASU
Asuncion
$860 Roundtrip, found 9 hours ago
$860
Roundtrip
found 9 hours ago
Select Delta flight, departing Mon, Feb 9 from San Diego to Asuncion, returning Sun, Feb 15, priced at $860 found 9 hours ago
Delta
Sun, Feb 8 - Sun, Feb 15
SAN
San Diego
ASU
Asuncion
$872 Roundtrip, found 9 hours ago
$872
Roundtrip
found 9 hours ago
Select Delta flight, departing Sun, Feb 8 from San Diego to Asuncion, returning Sun, Feb 15, priced at $872 found 9 hours ago
Delta
Thu, Nov 27 - Tue, Dec 9
SAN
San Diego
ASU
Asuncion
$875 Roundtrip, found 9 hours ago
$875
Roundtrip
found 9 hours ago
Select Delta flight, departing Thu, Nov 27 from San Diego to Asuncion, returning Tue, Dec 9, priced at $875 found 9 hours ago
United
Mon, Dec 1 - Mon, Dec 8
SAN
San Diego
ASU
Asuncion
$877 Roundtrip, found 3 days ago
$877
Roundtrip
found 3 days ago
Select United flight, departing Mon, Dec 1 from San Diego to Asuncion, returning Mon, Dec 8, priced at $877 found 3 days ago
LATAM Airlines Group
Wed, Feb 4 - Sat, Feb 28
SAN
San Diego
ASU
Asuncion
$880 Roundtrip, found 1 hour ago
$880
Roundtrip
found 1 hour ago
Select LATAM Airlines Group flight, departing Wed, Feb 4 from San Diego to Asuncion, returning Sat, Feb 28, priced at $880 found 1 hour ago
United
Thu, Nov 27 - Tue, Dec 2
SAN
San Diego
ASU
Asuncion
$884 Roundtrip, found 4 days ago
$884
Roundtrip
found 4 days ago
Select United flight, departing Thu, Nov 27 from San Diego to Asuncion, returning Tue, Dec 2, priced at $884 found 4 days ago
LATAM Airlines Group
Sun, Nov 16 - Sat, Dec 6
SAN
San Diego
ASU
Asuncion
$886 Roundtrip, found 9 hours ago
$886
Roundtrip
found 9 hours ago
Select LATAM Airlines Group flight, departing Sun, Nov 16 from San Diego to Asuncion, returning Sat, Dec 6, priced at $886 found 9 hours ago
GOL Linhas Aereas S.A.
Tue, Apr 7 - Thu, Apr 23
SAN
San Diego
ASU
Asuncion
$1,530 Roundtrip, found 6 days ago
$1,530
Roundtrip
found 6 days ago
Select GOL Linhas Aereas S.A. flight, departing Tue, Apr 7 from San Diego to Asuncion, returning Thu, Apr 23, priced at $1,530 found 6 days ago

Alternative airports near Asunción

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Silvio Pettirossi Intl. ASU. Cheapest and Closest option available. Average driving time to city center is 21 minutes. Flights from $853
ASU
Silvio Pettirossi Intl.
CheapestClosest
Average driving time to city center21 min
Flights from $853
Flights from San Diego (SAN) to Asuncion (ASU)
Origin airport
San Diego Intl.
Destination airport
Silvio Pettirossi Intl.
Airlines serving
Copa, GOL Linhas Aereas S.A., LATAM Airlines Group, United
Roundtrip price
$837
Distance
5608 mi

San Diego to Asuncion Flights

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

 

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

Sunday is one of the best days to book for cheap flights from San Diego 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 Diego 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 Diego to Asuncion in 2025. You can also book with separate airlines for your outbound and return journeys, from $395 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 Diego 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 Diego 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

How much does a flight from San Diego Intl. Airport (SAN) to Silvio Pettirossi Intl. Airport (ASU) cost?
Snag a cheap one-way flight from $395 or cheap return flight from $838 from San Diego Intl. Airport (SAN) to Silvio Pettirossi Intl. Airport (ASU) 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 San Diego Intl. Airport (SAN) to Silvio Pettirossi Intl. Airport (ASU)?
December is the least expensive month to fly from SAN to ASU. Planning your trip for the off-season is often the key to finding a great deal.
What is the cheapest airline that flies from San Diego Intl. Airport (SAN) to Silvio Pettirossi Intl. Airport (ASU)?
To find the cheapest airline flying from SAN to ASU, use Expedia's filter tool. Customize your search based on what matters most to you, such as preferred carriers and number of stops. You can then sort your results by "Price (lowest to highest)" to see the cheapest flights first.
How many flights per day from San Diego Intl. Airport (SAN) to Silvio Pettirossi Intl. Airport (ASU)?
There are no daily nonstop flights from San Diego Intl. Airport (SAN) to Silvio Pettirossi Intl. Airport (ASU). But you can opt for flights with layovers. Filter your search on Expedia to include one or two stops, and you'll be soaring above the clouds in no time.
What day of the week has the most flights from SAN to ASU?
Usually you'll find the widest variety of flight choices on a Friday. Tuesdays are often the quietest.* However, this can change based on the airline, season and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from San Diego Intl. Airport (SAN) to Silvio Pettirossi Intl. Airport (ASU)?
Select a flight from San Diego Intl. Airport (SAN) to Silvio Pettirossi Intl. Airport (ASU) that leaves before 3 PM to reduce the risk of delays and cancellations. Departures later than this have a 22% higher chance of being canceled, on average.**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 San Diego Intl. Airport (SAN) to Silvio Pettirossi Intl. Airport (ASU) last-minute?
Waiting until right before your break to book a ticket from SAN to ASU often results in higher prices. While it's possible to find some last-minute discounts, they're not always guaranteed. Be flexible with your itinerary for a better chance of getting a bargain.
Is it cheaper to book a SAN to ASU flight and hotel package?
Compared with arranging hotels and flights separately, booking a SAN to ASU flight and hotel package with Expedia could result in significant savings. Better still, having it all in one place will take the hassle out of planning your trip. Just secure your flights and choose from our wide range of hotels, then customize your trip with extras like tours, activities and car rentals.
Can I cancel or change the date of my flight from San Diego Intl. Airport (SAN) to Silvio Pettirossi Intl. Airport (ASU)?
If you reserved your SAN to ASU flight in the last 24 hours, you may be able to cancel or modify it without fees. Depending on the airline and the type of fare you have, additional charges may apply for changes beyond 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.

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*Available to One Key members.