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Asuncion

$400+ 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 2/28. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — ASU
Feb 17 — Feb 241
Tue 2/17
Tue 2/24
1 adult, Economy
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Cheap flight deals from San Francisco to Asuncion

Discover tips and strategies to find the most affordable flight options for your journey from San Francisco (SFO) to Asuncion (ASU). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated January 18, 2026.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$864
(United Airlines)

One-way from

$400
(Kiwi.com)

Popular in

February

Cheapest in

May
Provider with most accurate pricing for San Francisco-Asuncion Silvio Pettirossi flight deals.
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Provider most trusted by Cheapflights users for San Francisco-Asuncion Silvio Pettirossi flights.
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From San Francisco to Asuncion Silvio Pettirossi
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One-way flight from San Francisco to Asuncion Silvio Pettirossi
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Highest demand for flights based on searches. 18% potential increase in price ($242 potential increase over avg. RT price).
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Cheapest flight prices on average. 5% potential price decrease ($51 potential savings vs. average RT price).
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Find 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 January 18, 2026.

This United Airlines deal was found by Cheapflights users on 1/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/95:00 am
SFO
-
ASU
2 stops20h 32m
United Airlines
Thu 3/126:42 am
ASU
-
SFO
2 stops28h 54m
United Airlines
Deal found 1/15$864
This LATAM Airlines deal was found by Cheapflights users on 1/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/1211:05 am
SFO
-
ASU
2 stops26h 35m
LATAM Airlines
Sat 9/268:10 am
ASU
-
SFO
2 stops30h 02m
LATAM Airlines
Deal found 1/18$871
This Copa Airlines deal was found by Cheapflights users on 1/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/112:54 am
SFO
-
ASU
1 stop18h 21m
Copa Airlines
Thu 3/54:11 am
ASU
-
SFO
1 stop24h 05m
Copa Airlines
Deal found 1/16$889
This Expedia deal was found by Cheapflights users on 1/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/126:00 am
SFO
-
ASU
2 stops20h 05m
Multiple Airlines
Sat 9/268:10 am
ASU
-
SFO
2 stops32h 17m
Multiple Airlines
Deal found 1/17$891
This Copa Airlines deal was found by Cheapflights users on 1/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/18:35 pm
SFO
-
ASU
1 stop23h 30m
Copa Airlines
Tue 4/76:33 am
ASU
-
SFO
1 stop21h 07m
Copa Airlines
Deal found 1/16$909
This United Airlines deal was found by Cheapflights users on 1/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/1312:45 am
SFO
-
ASU
2 stops19h 20m
United Airlines
Sun 4/196:33 am
ASU
-
SFO
2 stops28h 43m
United Airlines
Deal found 1/17$914
This Copa Airlines deal was found by Cheapflights users on 1/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/111:12 am
SFO
-
ASU
1 stop21h 42m
Copa Airlines
Sat 9/266:33 am
ASU
-
SFO
1 stop21h 07m
Copa Airlines
Deal found 1/18$929
This FlightHub deal was found by Cheapflights users on 1/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/29:30 pm
SFO
-
ASU
2 stops51h 45m
LATAM Airlines
Thu 3/53:10 am
ASU
-
SFO
2 stops40h 53m
LATAM Airlines
Deal found 1/16$938
This Copa Airlines deal was found by Cheapflights users on 1/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/141:54 am
SFO
-
ASU
1 stop23h 38m
Copa Airlines
Sat 4/186:33 am
ASU
-
SFO
1 stop21h 07m
Copa Airlines
Deal found 1/16$1,024
This Mytrip deal was found by Cheapflights users on 1/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/211:10 pm
SFO
-
ASU
3 stops32h 15m
Multiple Airlines
Mon 3/98:25 am
ASU
-
SFO
3 stops32h 35m
Multiple Airlines
Deal found 1/16$1,031
This Expedia deal was found by Cheapflights users on 1/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/131:23 am
SFO
-
ASU
1 stop18h 42m
Multiple Airlines
Sun 4/198:10 am
ASU
-
SFO
2 stops32h 40m
Multiple Airlines
Deal found 1/17$1,044
This KAYAK deal was found by Cheapflights users on 1/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/1611:59 pm
SFO
-
ASU
2 stops22h 12m
Copa Airlines
Mon 2/236:42 am
ASU
-
SFO
2 stops29h 49m
Copa Airlines
Deal found 1/17$1,071

Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated January 18, 2026.
Use the filters below to find and compare flights from San Francisco to Asuncion that are best for you.

Fly from

San Francisco

Fly to

Asuncion

Route

Depart

Return

Price

San FranciscoAsuncion

SFO - ASU

SFOASU

San Francisco

Mon 3/2

4:10 pm-12:15 am

2 stops27h 05m

Asuncion Silvio Pettirossi

Mon 3/9

6:42 am-7:36 am

2 stops28h 54m

$864

San FranciscoAsuncion

SFO - ASU

SFOASU

San Francisco

Sun 3/8

12:43 am-5:32 am

2 stops24h 49m

Asuncion Silvio Pettirossi

Wed 3/11

6:42 am-7:36 am

2 stops28h 54m

$864

San FranciscoAsuncion

SFO - ASU

SFOASU

San Francisco

Wed 4/1

5:00 am-5:33 am

2 stops20h 33m

Asuncion Silvio Pettirossi

Tue 4/7

6:33 am-7:16 am

2 stops28h 43m

$864

San FranciscoAsuncion

SFO - ASU

SFOASU

San Francisco

Tue 3/31

5:00 am-5:30 am

2 stops20h 30m

Asuncion Silvio Pettirossi

Wed 4/8

6:33 am-7:16 am

2 stops28h 43m

$864

San FranciscoAsuncion

SFO - ASU

SFOASU

San Francisco

Mon 3/9

5:00 am-5:32 am

2 stops20h 32m

Asuncion Silvio Pettirossi

Thu 3/12

6:42 am-7:36 am

2 stops28h 54m

$864

San FranciscoAsuncion

SFO - ASU

SFOASU

San Francisco

Sun 3/1

12:54 am-12:15 am

1 stop18h 21m

Asuncion Silvio Pettirossi

Thu 3/5

4:11 am-11:16 pm

1 stop24h 05m

$889

San FranciscoAsuncion

SFO - ASU

SFOASU

San Francisco

Sun 3/15

6:28 pm-11:30 pm

2 stops49h 02m

Asuncion Silvio Pettirossi

Sat 4/18

8:10 am-10:17 am

2 stops30h 07m

$909

San FranciscoAsuncion

SFO - ASU

SFOASU

San Francisco

Wed 4/1

8:35 pm-12:05 am

1 stop23h 30m

Asuncion Silvio Pettirossi

Tue 4/7

6:33 am-11:40 pm

1 stop21h 07m

$909

San FranciscoAsuncion

SFO - ASU

SFOASU

San Francisco

Mon 4/13

1:23 am-12:05 am

1 stop18h 42m

Asuncion Silvio Pettirossi

Sun 4/19

4:03 am-6:25 pm

1 stop18h 22m

$909

San FranciscoAsuncion

SFO - ASU

SFOASU

San Francisco

Sat 2/28

6:53 pm-12:15 am

2 stops24h 22m

$400

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/18

Showing 1-10 of 19 results
1
2

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 January.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust 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.

Reviews of airlines servicing Asuncion

Get insights into the airlines that provide service to Asuncion. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Asuncion. Reviews last updated January 18, 2026.
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
1,560 reviews

Crew

8.1

Food

6.8

Overall

7.6

Boarding

7.8

Comfort

7.4

Entertainment

6.8

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
1,560 reviews
Copa Airlines
7.6
Good
1,560 reviews

Crew

8.1

Food

6.8

Overall

7.6

Boarding

7.8

Comfort

7.4

Entertainment

6.8

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
1,910 reviews
Copa Airlines
7.6
Good
1,560 reviews

Crew

8.1

Food

6.8

Overall

7.6

Boarding

7.8

Comfort

7.4

Entertainment

6.8

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
9,177 reviews
Copa Airlines
7.6
Good
1,560 reviews

Crew

8.1

Food

6.8

Overall

7.6

Boarding

7.8

Comfort

7.4

Entertainment

6.8

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

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?

    There are many flights that can get you from San Francisco to Asuncion in 27h 05m. Fly via United Airlines to get the fastest option. The distance from San Francisco to Asuncion is about 6040 mi.

  • 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 60% 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.

See more FAQs

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Top 3 airlines flying from San Francisco to Asuncion

Discover the top 3 airlines that operate flights from San Francisco to Asuncion. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated January 18, 2026.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$414Average$867FlexibilityNo cancel feeOn-time69%
LATAM AirlinesCheapest$488Average$1,049FlexibilityNo cancel feeOn-time81%
Copa AirlinesCheapest$578Average$962FlexibilityNo cancel feeOn-time70%

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