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Cheap flights from San Francisco to Asuncion from $520

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from San Francisco to Asuncion departing on 9/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from San Francisco to Asuncion

Cheap round-trip flights

Enter your travel dates to find the best prices.
Avianca Logo
11:10 pm - 5:15 am
SFO
-
ASU
49h 05m
2 stops
Avianca Logo
8:20 am - 9:50 pm
ASU
-
SFO
18h 30m
2 stops
$971Avianca
Sat, Nov 28 - Thu, Dec 10
Copa Airlines Logo
1:12 am - 12:18 am
SFO
-
ASU
19h 06m
1 stop
Copa Airlines Logo
6:33 am - 11:40 pm
ASU
-
SFO
21h 07m
1 stop
$1,169Copa Airlines
Mon, Aug 31 - Tue, Sep 8
Copa Airlines Logo
12:33 am - 11:57 pm
SFO
-
ASU
18h 24m
1 stop
Copa Airlines Logo
6:32 am - 5:25 pm
ASU
-
SFO
15h 53m
1 stop
$1,192Copa Airlines
Fri, Nov 27 - Thu, Dec 10
LATAM Airlines Logo
7:13 am - 5:40 pm
SFO
-
ASU
30h 27m
2 stops
LATAM Airlines Logo
8:10 am - 10:21 pm
ASU
-
SFO
18h 11m
2 stops
$1,216LATAM Airlines
Tue, Sep 1 - Tue, Sep 8
Multiple Airlines Logo
2:15 pm - 6:05 am
SFO
-
ASU
35h 50m
3 stops
Multiple Airlines Logo
12:05 pm - 12:50 pm
ASU
-
SFO
28h 45m
3 stops
$1,240Multiple Airlines
Tue, Sep 1 - Tue, Sep 8
LATAM Airlines Logo
7:13 am - 5:40 pm
SFO
-
ASU
30h 27m
2 stops
LATAM Airlines Logo
11:25 am - 1:31 pm
ASU
-
SFO
30h 06m
2 stops
$1,241LATAM Airlines
Thu, Aug 20 - Mon, Aug 24
United Airlines Logo
6:30 pm - 11:57 pm
SFO
-
ASU
25h 27m
2 stops
United Airlines Logo
6:33 am - 11:40 pm
ASU
-
SFO
21h 07m
1 stop
$1,578United Airlines
Thu, Aug 20 - Mon, Aug 24
United Airlines Logo
12:45 am - 5:31 am
SFO
-
ASU
24h 46m
2 stops
United Airlines Logo
6:33 am - 11:40 pm
ASU
-
SFO
21h 07m
1 stop
$1,578United Airlines
Mon, Aug 31 - Tue, Sep 8
Copa Airlines Logo
12:33 am - 11:57 pm
SFO
-
ASU
18h 24m
1 stop
Copa Airlines Logo
6:32 am - 6:47 pm
ASU
-
SFO
17h 15m
2 stops
$1,616Copa Airlines
Fri, Nov 27 - Thu, Dec 10
United Airlines Logo
1:12 am - 5:25 am
SFO
-
ASU
24h 13m
1 stop
United Airlines Logo
6:33 am - 11:40 pm
ASU
-
SFO
21h 07m
1 stop
$1,919United Airlines
Wed, Aug 19 - Mon, Aug 24

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United Airlines flights from San Francisco to Asuncion

Our best United Airlines deals on San Francisco to Asuncion flight tickets
United Airlines
Aug 20
SFO6:30 pmSan Francisco
25h 27m
2 stops
ASU11:57 pmAsuncion Silvio Pettirossi
Aug 24
ASU6:33 amAsuncion Silvio Pettirossi
21h 07m
1 stop
SFO11:40 pmSan Francisco
$1,578
United Airlines
Aug 19
SFO1:12 amSan Francisco
24h 13m
1 stop
ASU5:25 amAsuncion Silvio Pettirossi
Aug 24
ASU6:33 amAsuncion Silvio Pettirossi
21h 07m
1 stop
SFO11:40 pmSan Francisco
$1,919

LATAM Airlines flights from San Francisco to Asuncion

Our best LATAM Airlines deals on San Francisco to Asuncion flight tickets
LATAM Airlines
Sep 1
SFO7:13 amSan Francisco
30h 27m
2 stops
ASU5:40 pmAsuncion Silvio Pettirossi
Sep 8
ASU8:10 amAsuncion Silvio Pettirossi
18h 11m
2 stops
SFO10:21 pmSan Francisco
$1,216
LATAM Airlines
Aug 20
SFO7:13 amSan Francisco
30h 27m
2 stops
ASU5:40 pmAsuncion Silvio Pettirossi
Aug 24
ASU11:25 amAsuncion Silvio Pettirossi
30h 06m
2 stops
SFO1:31 pmSan Francisco
$1,241

momondo Fare Finder

 
Customize your flight search to find flights from San Francisco to Asuncion that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated August 3, 2026.
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

Cheapest round-trip

San FranciscoAsuncion

SFO - ASU

SFOASU

San Francisco

Sat 11/28

11:10 pm-5:15 am

2 stops49h 05m

Asuncion Silvio Pettirossi

Thu 12/10

8:20 am-9:50 pm

2 stops18h 30m

$971

San FranciscoAsuncion

SFO - ASU

SFOASU

San Francisco

Mon 8/31

1:12 am-12:18 am

1 stop19h 06m

Asuncion Silvio Pettirossi

Tue 9/8

6:33 am-11:40 pm

1 stop21h 07m

$1,169
Quickest round-trip

San FranciscoAsuncion

SFO - ASU

SFOASU

San Francisco

Fri 11/27

12:33 am-11:57 pm

1 stop18h 24m

Asuncion Silvio Pettirossi

Thu 12/10

6:32 am-5:25 pm

1 stop15h 53m

$1,192

San FranciscoAsuncion

SFO - ASU

SFOASU

San Francisco

Tue 9/1

7:13 am-5:40 pm

2 stops30h 27m

Asuncion Silvio Pettirossi

Tue 9/8

8:10 am-10:21 pm

2 stops18h 11m

$1,216

San FranciscoAsuncion

SFO - ASU

SFOASU

San Francisco

Tue 9/1

2:15 pm-6:05 am

3 stops35h 50m

Asuncion Silvio Pettirossi

Tue 9/8

12:05 pm-12:50 pm

3 stops28h 45m

$1,240

San FranciscoAsuncion

SFO - ASU

SFOASU

San Francisco

Thu 8/20

7:13 am-5:40 pm

2 stops30h 27m

Asuncion Silvio Pettirossi

Mon 8/24

11:25 am-1:31 pm

2 stops30h 06m

$1,241

San FranciscoAsuncion

SFO - ASU

SFOASU

San Francisco

Thu 8/20

6:30 pm-11:57 pm

2 stops25h 27m

Asuncion Silvio Pettirossi

Mon 8/24

6:33 am-11:40 pm

1 stop21h 07m

$1,578

San FranciscoAsuncion

SFO - ASU

SFOASU

San Francisco

Mon 8/31

12:45 am-5:31 am

2 stops24h 46m

Asuncion Silvio Pettirossi

Tue 9/8

6:33 am-11:40 pm

1 stop21h 07m

$1,578

San FranciscoAsuncion

SFO - ASU

SFOASU

San Francisco

Fri 11/27

12:33 am-11:57 pm

1 stop18h 24m

Asuncion Silvio Pettirossi

Thu 12/10

6:32 am-6:47 pm

2 stops17h 15m

$1,616

San FranciscoAsuncion

SFO - ASU

SFOASU

San Francisco

Wed 8/19

1:12 am-5:25 am

1 stop24h 13m

Asuncion Silvio Pettirossi

Mon 8/24

6:33 am-11:40 pm

1 stop21h 07m

$1,919

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Asuncion from

How to get the cheapest flight ticket from San Francisco to Asuncion

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Asuncion?

The cheapest month to fly to Asuncion from San Francisco is in June. Flight prices, which tend to average around $0, are often lower during this time because this is during the off-season. If you don’t want to visit Asuncion in June, then you should wait until January to fly from San Francisco, when ticket prices are also cheap, with an average price of $0.

Can stopping save me money on San Francisco to Asuncion flights?

You could potentially save up to 15% on your flight if you consider stops on a San Francisco to Asuncion flight.

How have San Francisco to Asuncion flight prices changed over time?

As of August 2026, prices for San Francisco to Asuncion flights are approximately 37% more expensive when compared to flights at the same time last year.

When to book flights from San Francisco to Asuncion

Are you open to changing your travel dates? Check out the ideal times to fly from San Francisco to Asuncion according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap San Francisco to Asuncion (SFO to ASU) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from San Francisco to Asuncion

Fastest flight time

20h 05m

Direct flights

None
The fastest flight from San Francisco to Asuncion takes 20h 05m
There are no direct flights from San Francisco to Asuncion. There are no popular flight routes from San Francisco to Asuncion.
Search flight deals

Frequently asked questions about flying from San Francisco to Asuncion

  • How far is San Francisco to Asuncion Silvio Pettirossi by plane?

    Asuncion Silvio Pettirossi is 6043.9 mi away from San Francisco. In terms of flight time, this usually takes a little over 20h 05m.

  • When did momondo last update prices for flights from San Francisco Airport to Asuncion Silvio Pettirossi Airport?

    Prices for flights from San Francisco Airport to Asuncion Silvio Pettirossi Airport refresh daily.

  • How many operators does momondo search for flights from San Francisco Airport to Asuncion Silvio Pettirossi Airport?

  • How old do you have to be to fly from San Francisco Airport to Asuncion Silvio Pettirossi Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from San Francisco Airport to Asuncion Silvio Pettirossi Airport.

  • What documentation or ID do you need to fly to Asuncion Silvio Pettirossi Airport?

    The required travel and health documents for your Asuncion Silvio Pettirossi Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Asuncion Silvio Pettirossi Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular airline from San Francisco to Asuncion?

Best airlines flying from San Francisco to Asuncion

Compare and see reviews for airlines that fly from San Francisco to Asuncion with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $424Free CancellationRating
7.4
10,058 reviews
Search United Airlines flights
Copa AirlinesPriceFrom $867Free CancellationRating
7.6
1,564 reviews
Search Copa Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from San Francisco to Asuncion?

It is quick and easy to find San Francisco to Asuncion flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Asuncion that suits you.

Can I find flights from San Francisco to Asuncion with flexible booking policies on momondo?

momondo does allow users to show only those flights to Asuncion from San Francisco which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from San Francisco to Asuncion?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from San Francisco to Asuncion.

I’m not ready to book a flight from San Francisco to Asuncion right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Asuncion, momondo offers a useful price alert feature which will track prices for flights to Asuncion from San Francisco and alert you when they change.

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