How long is the flight from San Francisco to Asuncion?

There are many flights that can get you from San Francisco to Asuncion in 18h 21m. Fly via LATAM Airlines, United Airlines, or Copa Airlines to get the fastest option. The distance from San Francisco to Asuncion is about 6040 mi. Both multi-stop and nonstop flights can be found to your destination and back.

What are the cheapest airlines flying from San Francisco to Asuncion round-trip?

Cheapflights users have booked flights from San Francisco to Asuncion round-trip from $414. Other airlines that can offer you cheap pricing are LATAM Airlines, from $488, and Copa Airlines, from $578. These flights start at 62% lower than the current average price 3 months from now.

In terms of precipitation, rainfall in Asuncion ranges from 1.6 - 5.5 inches per month. January is typically the wettest month, when rainfall can reach 5.5 in. August is typically the driest time to visit Asuncion when rainfall is around 1.6 in.

If weather is an important factor for your trip to Asuncion, use this chart to help with planning. For those seeking warmer temperatures, January is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of June, when temperatures are typically at their lowest (around 64.4 F).

What are the most popular airlines that fly from San Francisco to Asuncion?

The most popular airlines flying from San Francisco to Asuncion are Copa Airlines, United Airlines and LATAM Airlines. Something to consider prior to booking your flight.

What is the cheapest time of day to fly from SFO to ASU?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from San Francisco to Asuncion as you normally would.

Most accurate provider : When it comes to deals on San Francisco-Asuncion flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on San Francisco-Asuncion flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from San Francisco-Asuncion flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on San Francisco-Asuncion flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for San Francisco-Asuncion flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Can I find deals for flights from San Francisco to Asuncion that include hotel bookings?

Yes. In addition to deals on San Francisco to Asuncion flights, Cheapflights offers vacation packages that include both flights and hotel.

How can I find direct flights from San Francisco to Asuncion?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from San Francisco to Asuncion.

Can I find deals for business class flights from San Francisco to Asuncion?

Yes. Cheapflights offers flight deals from San Francisco to Asuncion by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$405+ Flights from San Francisco to Asuncion

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Cheap flight deals from San Francisco to Asuncion

Cheapest flights from San Francisco to Asuncion
Explore the most affordable flight options available from San Francisco to Asuncion. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 27, 2025.

Sun 12/288:45 amSFO - ASU

1 stop34h 26mUnited Airlines

Tue 1/136:42 amASU - SFO

2 stops34h 28mUnited Airlines

Deal found 12/27

$1,389

Sun 12/289:21 amSFO - ASU

2 stops27h 14mLATAM Airlines

Tue 1/138:25 amASU - SFO

2 stops18h 30mLATAM Airlines

Deal found 12/25

$1,698

Sat 12/279:21 amSFO - ASU

2 stops39h 54mMultiple Airlines

Sat 1/38:20 amASU - SFO

2 stops20h 00mMultiple Airlines

Deal found 12/26

$1,966

Fri 12/2612:36 amSFO - ASU

1 stop23h 54mCopa Airlines

Sat 1/36:42 amASU - SFO

1 stop21h 38mCopa Airlines

Deal found 12/26

$2,430

Sat 12/2712:36 amSFO - ASU

1 stop23h 54mCopa Airlines

Tue 1/136:42 amASU - SFO

1 stop21h 38mCopa Airlines

Deal found 12/27

$2,625

Sat 12/278:45 amSFO - ASU

1 stop34h 26mUnited Airlines

Sat 1/36:42 amASU - SFO

2 stops39h 10mUnited Airlines

Deal found 12/26

$2,992

Sun 12/288:45 amSFO - ASU

1 stop15h 45mMultiple Airlines

Tue 1/131:20 pmASU - SFO

2 stops32h 10mMultiple Airlines

Deal found 12/25

$9,034

Best flights from San Francisco to Asuncion
Discover carefully curated flight deals from San Francisco to Asuncion that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated December 27, 2025.

Mon 3/98:55 amSFO - ASU

2 stops23h 30mLATAM Airlines

Wed 3/1111:20 amASU - SFO

2 stops28h 47mLATAM Airlines

Deal found 12/26

$681

Tue 3/1012:43 amSFO - ASU

2 stops24h 49mUnited Airlines

Tue 4/76:33 amASU - SFO

2 stops21h 26mUnited Airlines

Deal found 12/26

$843

Tue 3/101:54 amSFO - ASU

1 stop18h 21mCopa Airlines

Tue 4/76:33 amASU - SFO

1 stop21h 07mCopa Airlines

Deal found 12/26

$868

Mon 2/211:10 pmSFO - ASU

2 stops49h 05mMultiple Airlines

Mon 2/96:30 pmASU - SFO

3 stops33h 50mMultiple Airlines

Deal found 12/26

$1,159

Sun 3/811:35 pmSFO - ASU

2 stops32h 50mLATAM Airlines

Wed 3/118:25 amASU - SFO

2 stops30h 07mLATAM Airlines

Deal found 12/24

$813

Mon 2/24:10 pmSFO - ASU

2 stops32h 22mUnited Airlines

Mon 2/96:42 amASU - SFO

2 stops30h 07mUnited Airlines

Deal found 12/26

$1,003

Mon 2/21:35 pmSFO - ASU

2 stops47h 05mLATAM Airlines

Mon 2/96:30 pmASU - SFO

2 stops23h 25mLATAM Airlines

Deal found 12/26

$1,153

Mon 3/95:00 amSFO - ASU

2 stops20h 32mUnited Airlines

Wed 3/116:42 amASU - SFO

1 stop20h 58mUnited Airlines

Deal found 12/26

$1,273

Thu 6/181:45 pmSFO - ASU

2 stops36h 20mLATAM Airlines

Mon 6/298:10 amASU - SFO

2 stops20h 05mLATAM Airlines

Deal found 12/27

$1,162

Sun 3/87:20 amSFO - ASU

2 stops18h 12mUnited Airlines

Wed 3/116:42 amASU - SFO

1 stop20h 58mUnited Airlines

Deal found 12/24

$1,273

Last-minute flights from San Francisco to Asuncion
Discover last-minute flight deals from San Francisco to Asuncion. Data last updated December 27, 2025 and is based on user searches.

Fri 12/2612:36 amSFO - ASU

1 stop23h 54mCopa Airlines

Sat 1/36:42 amASU - SFO

1 stop21h 38mCopa Airlines

Deal found 12/26

$2,430

Sat 12/279:21 amSFO - ASU

2 stops39h 54mMultiple Airlines

Sat 1/38:20 amASU - SFO

2 stops20h 00mMultiple Airlines

Deal found 12/26

$1,966

Sat 12/2712:36 amSFO - ASU

1 stop23h 54mCopa Airlines

Tue 1/136:42 amASU - SFO

1 stop21h 38mCopa Airlines

Deal found 12/27

$2,625

Sat 12/278:45 amSFO - ASU

1 stop34h 26mUnited Airlines

Sat 1/36:42 amASU - SFO

2 stops39h 10mUnited Airlines

Deal found 12/26

$2,992

Sun 12/288:45 amSFO - ASU

1 stop34h 26mUnited Airlines

Tue 1/136:42 amASU - SFO

2 stops34h 28mUnited Airlines

Deal found 12/27

$1,389

Sun 12/289:21 amSFO - ASU

2 stops27h 14mLATAM Airlines

Tue 1/138:25 amASU - SFO

2 stops18h 30mLATAM Airlines

Deal found 12/25

$1,698

Sun 12/288:45 amSFO - ASU

1 stop15h 45mMultiple Airlines

Tue 1/131:20 pmASU - SFO

2 stops32h 10mMultiple Airlines

Deal found 12/25

$9,034

One-way flights from San Francisco to Asuncion
Search for one-way flight options from San Francisco to Asuncion. Find affordable one-way fares based on user searches. Data last updated December 27, 2025.

Thu 1/18:45 amSFO - ASU

1 stop34h 29mUnited Airlines

Deal found 12/26

$405

Sun 1/2512:42 amSFO - ASU

1 stop23h 55mCopa Airlines

Deal found 12/25

$465

Mon 1/2610:37 pmSFO - ASU

2 stops38h 03mMultiple Airlines

Deal found 12/25

$482

Mon 1/264:10 pmSFO - ASU

2 stops32h 27mUnited Airlines

Deal found 12/27

$554

Mon 1/268:00 amSFO - ASU

3 stops22h 30mAmerican Airlines

Deal found 12/27

$2,367

Find flight deals from San Francisco to Asuncion

Most accurate provider	eDreams 3 stars
Most trusted provider	eDreams 3 stars
Round-trip from	$681 (LATAM Airlines)
One-way from	$405 (United Airlines)
Popular in	January
Cheapest in	May
Average price	$1,175

Provider with most accurate pricing for San Francisco-Asuncion Silvio Pettirossi flight deals.

Search Deals

Provider most trusted by Cheapflights users for San Francisco-Asuncion Silvio Pettirossi flights.

Search Deals

From San Francisco to Asuncion Silvio Pettirossi

Search Deals

One-way flight from San Francisco to Asuncion Silvio Pettirossi

Search Deals

Highest demand for flights based on searches. 25% potential increase in price ($380 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 5% potential price decrease ($58 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in December 2025

Search Deals

Cheapflights Fare Finder

Use the filters below to find and compare flights from San Francisco to Asuncion that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

San FranciscoAsuncion

SFO - ASU

SFOASU

San Francisco

Mon 3/9

8:55 am-12:25 pm

2 stops23h 30m

Asuncion Silvio Pettirossi

Wed 3/11

11:20 am-12:07 pm

2 stops28h 47m

$681

San FranciscoAsuncion

SFO - ASU

SFOASU

San Francisco

Sun 3/8

11:35 pm-12:25 pm

2 stops32h 50m

Asuncion Silvio Pettirossi

Wed 3/11

8:25 am-10:32 am

2 stops30h 07m

$813

San FranciscoAsuncion

SFO - ASU

SFOASU

San Francisco

Tue 3/10

12:43 am-5:32 am

2 stops24h 49m

Asuncion Silvio Pettirossi

Tue 4/7

6:33 am-11:59 pm

2 stops21h 26m

$843

San FranciscoAsuncion

SFO - ASU

SFOASU

San Francisco

Tue 3/10

1:54 am-12:15 am

1 stop18h 21m

Asuncion Silvio Pettirossi

Tue 4/7

6:33 am-11:40 pm

1 stop21h 07m

$868

San FranciscoAsuncion

SFO - ASU

SFOASU

San Francisco

Mon 2/2

4:10 pm-5:32 am

2 stops32h 22m

Asuncion Silvio Pettirossi

Mon 2/9

6:42 am-7:49 am

2 stops30h 07m

$1,003

San FranciscoAsuncion

SFO - ASU

SFOASU

San Francisco

Mon 2/2

1:35 pm-5:40 pm

2 stops47h 05m

Asuncion Silvio Pettirossi

Mon 2/9

6:30 pm-12:55 pm

2 stops23h 25m

$1,153

San FranciscoAsuncion

SFO - ASU

SFOASU

San Francisco

Mon 2/2

11:10 pm-5:15 am

2 stops49h 05m

Asuncion Silvio Pettirossi

Mon 2/9

6:30 pm-11:20 pm

3 stops33h 50m

$1,159

San FranciscoAsuncion

SFO - ASU

SFOASU

San Francisco

Thu 6/18

1:45 pm-6:05 am

2 stops36h 20m

Asuncion Silvio Pettirossi

Mon 6/29

8:10 am-12:15 am

2 stops20h 05m

$1,162

San FranciscoAsuncion

SFO - ASU

SFOASU

San Francisco

Mon 3/9

5:00 am-5:32 am

2 stops20h 32m

Asuncion Silvio Pettirossi

Wed 3/11

6:42 am-11:40 pm

1 stop20h 58m

$1,273

San FranciscoAsuncion

SFO - ASU

SFOASU

San Francisco

Sun 3/8

7:20 am-5:32 am

2 stops18h 12m

Asuncion Silvio Pettirossi

Wed 3/11

6:42 am-11:40 pm

1 stop20h 58m

$1,273

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/25

Showing 1-10 of 14 results

Compare providers for flights from San Francisco to Asuncion

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from San Francisco to Asuncion in December.

Provider	Price Accuracy	Trust Score*
FlightHub	Price Accuracy3 stars	Trust Score*1 star
eDreams	Price Accuracy3 stars	Trust Score*3 stars
AranGrant	Price Accuracy2 stars	Trust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

Most accurate provider: When it comes to deals on San Francisco-Asuncion flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on San Francisco-Asuncion flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from San Francisco-Asuncion flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on San Francisco-Asuncion flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for San Francisco-Asuncion flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from San Francisco to Asuncion

Have a flexible travel schedule? Discover the best time to fly to Asuncion from San Francisco with our price prediction graph.

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from San Francisco to Asuncion

What is the cheapest month to book a flight from San Francisco to Asuncion?

Currently, May is the cheapest month in which you can book a flight from San Francisco to Asuncion (average of $431). Flying from San Francisco to Asuncion in January is currently the most expensive (average of $1,732). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Reviews of airlines servicing Asuncion

Read reviews from past customers who have flown Copa Airlines, LATAM Airlines, and United Airlines from San Francisco to Asuncion. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Copa Airlines

7.6

Good

1,561 reviews

Reviews

1 / 20

2.0

Mediocre

Juan,Dec 2025

EZE - PTY

The outbound flight from Boston was awful. The handicapped services were the worst i have ever seen. NEVER AGAIN. THIS WAS NOT WORTH ANYWHERE NEAR $4K.

Copa Airlines

7.6

Good

1,561 reviews

Copa Airlines

7.6

Good

1,561 reviews

Reviews

1 / 20

2.0

Mediocre

Juan,Dec 2025

EZE - PTY

The outbound flight from Boston was awful. The handicapped services were the worst i have ever seen. NEVER AGAIN. THIS WAS NOT WORTH ANYWHERE NEAR $4K.

LATAM Airlines

7.5

Good

1,895 reviews

Copa Airlines

7.6

Good

1,561 reviews

Reviews

1 / 20

2.0

Mediocre

Juan,Dec 2025

EZE - PTY

The outbound flight from Boston was awful. The handicapped services were the worst i have ever seen. NEVER AGAIN. THIS WAS NOT WORTH ANYWHERE NEAR $4K.

United Airlines

7.4

Good

9,116 reviews

Copa Airlines

7.6

Good

1,561 reviews

Reviews

1 / 20

2.0

Mediocre

Juan,Dec 2025

EZE - PTY

The outbound flight from Boston was awful. The handicapped services were the worst i have ever seen. NEVER AGAIN. THIS WAS NOT WORTH ANYWHERE NEAR $4K.

Related info for your journey

How long is the flight from San Francisco to Asuncion?
There are many flights that can get you from San Francisco to Asuncion in 18h 21m. Fly via LATAM Airlines, United Airlines, or Copa Airlines to get the fastest option. The distance from San Francisco to Asuncion is about 6040 mi. Both multi-stop and nonstop flights can be found to your destination and back.
What are the cheapest airlines flying from San Francisco to Asuncion round-trip?
Cheapflights users have booked flights from San Francisco to Asuncion round-trip from $414. Other airlines that can offer you cheap pricing are LATAM Airlines, from $488, and Copa Airlines, from $578. These flights start at 62% lower than the current average price 3 months from now.
Can I find deals for flights from San Francisco to Asuncion that include hotel bookings?
Yes. In addition to deals on San Francisco to Asuncion flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from San Francisco to Asuncion?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from San Francisco to Asuncion.
Can I find deals for business class flights from San Francisco to Asuncion?
Yes. Cheapflights offers flight deals from San Francisco to Asuncion by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.
What is the cheapest month to book a flight from San Francisco to Asuncion?
Currently, May is the cheapest month in which you can book a flight from San Francisco to Asuncion (average of $431). Flying from San Francisco to Asuncion in January is currently the most expensive (average of $1,732). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

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Top 3 airlines flying from San Francisco to Asuncion

Airline	Cheapest	Average	Flexibility	On-time
United Airlines	Cheapest$447	Average$867	FlexibilityNo cancel fee	On-time69%
Copa Airlines	Cheapest$588	Average$974	FlexibilityNo cancel fee	On-time70%
LATAM Airlines	Cheapest$694	Average$1,192	FlexibilityNo cancel fee	On-time81%

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$405+ Cheap flights from San Francisco (SFO) to Asuncion (ASU)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/1. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from San Francisco to Asuncion with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

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Cheap flight deals from San Francisco to Asuncion

Cheapest flights from San Francisco to AsuncionExplore the most affordable flight options available from San Francisco to Asuncion. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 27, 2025.

Explore the most affordable flight options available from San Francisco to Asuncion. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 27, 2025.

Find flight deals from San Francisco to Asuncion

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Cheapflights Fare Finder

Use the filters below to find and compare flights from San Francisco to Asuncion that are best for you.

Compare providers for flights from San Francisco to Asuncion

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from San Francisco to Asuncion in December.

Best time to book a flight from San Francisco to Asuncion

Have a flexible travel schedule? Discover the best time to fly to Asuncion from San Francisco with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from San Francisco to Asuncion

What is the cheapest month to book a flight from San Francisco to Asuncion?

Reviews of airlines servicing Asuncion

Read reviews from past customers who have flown Copa Airlines, LATAM Airlines, and United Airlines from San Francisco to Asuncion. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from San Francisco to Asuncion. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

How long is the flight from San Francisco to Asuncion?

What are the cheapest airlines flying from San Francisco to Asuncion round-trip?

Can I find deals for flights from San Francisco to Asuncion that include hotel bookings?

How can I find direct flights from San Francisco to Asuncion?

Can I find deals for business class flights from San Francisco to Asuncion?

What is the cheapest month to book a flight from San Francisco to Asuncion?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for San Francisco to Asuncion

See prices for flight routes from nearby airports that may be better suited for you.

Top 3 airlines flying from San Francisco to Asuncion

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Cheapest flights from San Francisco to Asuncion
Explore the most affordable flight options available from San Francisco to Asuncion. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 27, 2025.