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Cheap flights from San Francisco to Asuncion from $405

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 12/28. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from San Francisco to Asuncion

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
7:18 am - 5:32 am
SFO
-
ASU
17h 14m2 stops
United Airlines Logo
6:42 am - 7:36 am
ASU
-
SFO
28h 54m2 stops
$843United Airlines
Tue, Mar 3 - Tue, Mar 10
Copa Airlines Logo
12:54 am - 5:32 am
SFO
-
ASU
23h 38m1 stop
Copa Airlines Logo
6:42 am - 11:40 pm
ASU
-
SFO
20h 58m1 stop
$888Copa Airlines
Mon, Mar 2 - Wed, Mar 11
Copa Airlines Logo
12:42 am - 5:32 am
SFO
-
ASU
23h 50m1 stop
Copa Airlines Logo
4:11 am - 11:20 pm
ASU
-
SFO
24h 09m1 stop
$889Copa Airlines
Tue, Feb 10 - Tue, Feb 17
Multiple Airlines Logo
6:50 pm - 6:05 am
SFO
-
ASU
31h 15m2 stops
Multiple Airlines Logo
11:05 am - 11:16 pm
ASU
-
SFO
40h 11m3 stops
$927Multiple Airlines
Sat, Mar 28 - Mon, Apr 6
LATAM Airlines Logo
4:03 pm - 5:40 pm
SFO
-
ASU
44h 37m2 stops
LATAM Airlines Logo
8:25 am - 12:39 pm
ASU
-
SFO
33h 14m2 stops
$947LATAM Airlines
Mon, Jan 19 - Sat, Jan 24
United Airlines Logo
7:10 pm - 5:32 am
SFO
-
ASU
29h 22m2 stops
United Airlines Logo
6:42 am - 7:31 am
ASU
-
SFO
29h 49m2 stops
$1,003United Airlines
Tue, Feb 17 - Fri, Feb 20
Multiple Airlines Logo
12:42 am - 5:32 am
SFO
-
ASU
23h 50m1 stop
Multiple Airlines Logo
11:15 am - 10:02 am
ASU
-
SFO
27h 47m2 stops
$1,073Multiple Airlines
Tue, Feb 10 - Wed, Feb 18
Multiple Airlines Logo
12:00 pm - 1:50 am
SFO
-
ASU
32h 50m3 stops
Multiple Airlines Logo
3:10 am - 10:54 am
ASU
-
SFO
35h 44m3 stops
$1,081Multiple Airlines
Tue, Mar 3 - Tue, Mar 10
Copa Airlines Logo
1:54 am - 3:11 am
SFO
-
ASU
21h 17m1 stop
Copa Airlines Logo
6:33 am - 11:40 pm
ASU
-
SFO
21h 07m1 stop
$1,083Copa Airlines
Fri, Mar 27 - Mon, Apr 6
Avianca Logo
11:10 pm - 5:15 am
SFO
-
ASU
25h 05m2 stops
Avianca Logo
8:20 am - 1:00 pm
ASU
-
SFO
32h 40m3 stops
$1,089Avianca
Tue, Mar 3 - Tue, Mar 10

Copa Airlines flights from San Francisco to Asuncion

Our best Copa Airlines deals on San Francisco to Asuncion flight tickets
Copa Airlines
Mar 2
SFO12:54 amSan Francisco
23h 38m
1 stop
ASU5:32 amAsuncion Silvio Pettirossi
Mar 11
ASU6:42 amAsuncion Silvio Pettirossi
20h 58m
1 stop
SFO11:40 pmSan Francisco
$888
Find similar
Copa Airlines
Feb 10
SFO12:42 amSan Francisco
23h 50m
1 stop
ASU5:32 amAsuncion Silvio Pettirossi
Feb 17
ASU4:11 amAsuncion Silvio Pettirossi
24h 09m
1 stop
SFO11:20 pmSan Francisco
$889
Find similar
Copa Airlines
Mar 27
SFO1:54 amSan Francisco
21h 17m
1 stop
ASU3:11 amAsuncion Silvio Pettirossi
Apr 6
ASU6:33 amAsuncion Silvio Pettirossi
21h 07m
1 stop
SFO11:40 pmSan Francisco
$1,083
Find similar

Avianca flights from San Francisco to Asuncion

Our best Avianca deals on San Francisco to Asuncion flight tickets
Avianca
Mar 3
SFO11:10 pmSan Francisco
25h 05m
2 stops
ASU5:15 amAsuncion Silvio Pettirossi
Mar 10
ASU8:20 amAsuncion Silvio Pettirossi
32h 40m
3 stops
SFO1:00 pmSan Francisco
$1,089
Find similar
Avianca
Feb 10
SFO1:20 pmSan Francisco
34h 55m
2 stops
ASU5:15 amAsuncion Silvio Pettirossi
Feb 19
ASU8:20 amAsuncion Silvio Pettirossi
18h 30m
2 stops
SFO9:50 pmSan Francisco
$1,119
Find similar
Avianca
Feb 10
SFO1:20 pmSan Francisco
34h 55m
2 stops
ASU5:15 amAsuncion Silvio Pettirossi
Feb 17
ASU8:20 amAsuncion Silvio Pettirossi
18h 30m
2 stops
SFO9:50 pmSan Francisco
$1,124
Find similar

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 December 18, 2025.
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

Tue 3/3

7:18 am-5:32 am

2 stops17h 14m

Asuncion Silvio Pettirossi

Tue 3/10

6:42 am-7:36 am

2 stops28h 54m

$843

San FranciscoAsuncion

SFO - ASU

SFOASU

San Francisco

Mon 3/2

12:54 am-5:32 am

1 stop23h 38m

Asuncion Silvio Pettirossi

Wed 3/11

6:42 am-11:40 pm

1 stop20h 58m

$888

San FranciscoAsuncion

SFO - ASU

SFOASU

San Francisco

Tue 2/10

12:42 am-5:32 am

1 stop23h 50m

Asuncion Silvio Pettirossi

Tue 2/17

4:11 am-11:20 pm

1 stop24h 09m

$889

San FranciscoAsuncion

SFO - ASU

SFOASU

San Francisco

Sat 3/28

6:50 pm-6:05 am

2 stops31h 15m

Asuncion Silvio Pettirossi

Mon 4/6

11:05 am-11:16 pm

3 stops40h 11m

$927

San FranciscoAsuncion

SFO - ASU

SFOASU

San Francisco

Mon 1/19

4:03 pm-5:40 pm

2 stops44h 37m

Asuncion Silvio Pettirossi

Sat 1/24

8:25 am-12:39 pm

2 stops33h 14m

$947

San FranciscoAsuncion

SFO - ASU

SFOASU

San Francisco

Tue 2/17

7:10 pm-5:32 am

2 stops29h 22m

Asuncion Silvio Pettirossi

Fri 2/20

6:42 am-7:31 am

2 stops29h 49m

$1,003

San FranciscoAsuncion

SFO - ASU

SFOASU

San Francisco

Tue 2/10

12:42 am-5:32 am

1 stop23h 50m

Asuncion Silvio Pettirossi

Wed 2/18

11:15 am-10:02 am

2 stops27h 47m

$1,073

San FranciscoAsuncion

SFO - ASU

SFOASU

San Francisco

Tue 3/3

12:00 pm-1:50 am

3 stops32h 50m

Asuncion Silvio Pettirossi

Tue 3/10

3:10 am-10:54 am

3 stops35h 44m

$1,081

San FranciscoAsuncion

SFO - ASU

SFOASU

San Francisco

Fri 3/27

1:54 am-3:11 am

1 stop21h 17m

Asuncion Silvio Pettirossi

Mon 4/6

6:33 am-11:40 pm

1 stop21h 07m

$1,083

San FranciscoAsuncion

SFO - ASU

SFOASU

San Francisco

Tue 3/3

11:10 pm-5:15 am

2 stops25h 05m

Asuncion Silvio Pettirossi

Tue 3/10

8:20 am-1:00 pm

3 stops32h 40m

$1,089

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 May. Flight prices, which tend to average around $578, are often lower during this time because this is during the off-season. If you don’t want to visit Asuncion in May, then you should wait until August to fly from San Francisco, when ticket prices are also cheap, with an average price of $639.

What is the cheapest day to depart on your flight to Asuncion?

According to our data, Thursday is the cheapest day to fly to Asuncion from San Francisco. The lowest ticket price found for a Thursday departure recently was $750. Keep in mind that prices can always vary depending on your route and whether or not you are flying domestic or international. The most expensive day to fly to Asuncion is Saturday, with ticket prices averaging around $1,124.

What is the cheapest time of day to depart on your flight to Asuncion?

The cheapest time of day to fly to Asuncion is in the morning when flights can be purchased for as low as $843. Flights in the evening are often more expensive with an average ticket price of $883.

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

You could potentially save up to 23% 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 December 2025, prices for San Francisco to Asuncion flights are approximately 2% cheaper 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

17h 14m

Direct flights

None
The fastest flight from San Francisco to Asuncion takes 17h 14m
There are no direct flights from San Francisco to Asuncion. There are no popular flight routes from San Francisco to Asuncion.
Search flight deals

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

    Asuncion Silvio Pettirossi is 6044.8 mi away from San Francisco. In terms of flight time, this usually takes a little over 17h 14m.

  • 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 $447Free CancellationRating
7.4
9,091 reviews
Search United Airlines flights
LATAM AirlinesPriceFrom $488Free CancellationRating
7.5
1,893 reviews
Search LATAM Airlines flights
Copa AirlinesPriceFrom $588Free CancellationRating
7.6
1,556 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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