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Asuncion

$385+ 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 9/5. Fares are subject to change and may not be available on all flights or dates of travel.
SFO — ASU
Aug 23 — Aug 301
Sat 8/23
Sat 8/30
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 August 18, 2025.

Round-trip from

$868
(United Airlines)

One-way from

$385
(Kiwi.com)

Popular in

February

Cheapest in

May

Average price

$857
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. 23% potential increase in price ($328 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($47 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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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 August 18, 2025.

This United Airlines deal was found by Cheapflights users on 8/17. 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.
Tue 9/210:55 amSFO - ASU
1 stop33h 10mUnited Airlines
Tue 9/301:45 amASU - SFO
1 stop23h 25mUnited Airlines
Deal found 8/17$868
This FlightHub deal was found by Cheapflights users on 8/16. 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 9/155:55 amSFO - ASU
2 stops20h 15mLATAM Airlines
Mon 9/228:25 amASU - SFO
2 stops19h 32mLATAM Airlines
Deal found 8/16$873
This United Airlines deal was found by Cheapflights users on 8/16. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/198:45 amSFO - ASU
1 stop34h 26mUnited Airlines
Wed 11/261:46 amASU - SFO
2 stops22h 39mUnited Airlines
Deal found 8/16$878
This LATAM Airlines deal was found by Cheapflights users on 8/17. 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 LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/211:12 amSFO - ASU
2 stops26h 28mLATAM Airlines
Mon 9/298:25 amASU - SFO
2 stops18h 44mLATAM Airlines
Deal found 8/17$880
This United deal was found by Cheapflights users on 8/17. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/412:43 amSFO - ASU
2 stops19h 22mMultiple Airlines
Sun 9/288:10 amASU - SFO
2 stops32h 09mMultiple Airlines
Deal found 8/17$881
This United Airlines deal was found by Cheapflights users on 8/17. 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.
Wed 9/311:59 pmSFO - ASU
2 stops25h 26mUnited Airlines
Tue 9/301:45 amASU - SFO
2 stops26h 12mUnited Airlines
Deal found 8/17$882
This United Airlines deal was found by Cheapflights users on 8/16. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1812:43 amSFO - ASU
2 stops23h 47mUnited Airlines
Thu 11/271:46 amASU - SFO
1 stop23h 43mUnited Airlines
Deal found 8/16$887
This Copa Airlines deal was found by Cheapflights users on 8/17. 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 Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/41:30 amSFO - ASU
1 stop23h 55mCopa Airlines
Thu 9/256:31 amASU - SFO
1 stop20h 54mCopa Airlines
Deal found 8/17$888
This LATAM Airlines deal was found by Cheapflights users on 8/17. 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 LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/211:12 amSFO - ASU
2 stops26h 28mLATAM Airlines
Sat 9/278:25 amASU - SFO
2 stops30h 09mLATAM Airlines
Deal found 8/17$894
This SmartFares deal was found by Cheapflights users on 8/17. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/18:45 amSFO - ASU
2 stops29h 15mMultiple Airlines
Wed 10/88:25 amASU - SFO
2 stops32h 59mMultiple Airlines
Deal found 8/17$904

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 August 18, 2025.
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

Sun 9/7

10:55 am-5:25 am

1 stop14h 30m

Asuncion Silvio Pettirossi

Sat 9/27

1:45 am-9:10 pm

1 stop23h 25m

$868

San FranciscoAsuncion

SFO - ASU

SFOASU

San Francisco

Mon 9/8

10:55 am-5:25 am

1 stop14h 30m

Asuncion Silvio Pettirossi

Wed 9/24

1:45 am-9:10 pm

1 stop23h 25m

$868

San FranciscoAsuncion

SFO - ASU

SFOASU

San Francisco

Tue 9/2

10:55 am-12:05 am

1 stop33h 10m

Asuncion Silvio Pettirossi

Sun 9/28

1:45 am-9:10 pm

1 stop23h 25m

$868

San FranciscoAsuncion

SFO - ASU

SFOASU

San Francisco

Sun 9/7

10:55 am-5:25 am

1 stop14h 30m

Asuncion Silvio Pettirossi

Mon 9/29

1:45 am-9:10 pm

1 stop23h 25m

$868

San FranciscoAsuncion

SFO - ASU

SFOASU

San Francisco

Thu 11/20

8:45 am-12:11 am

1 stop34h 26m

Asuncion Silvio Pettirossi

Wed 11/26

1:46 am-8:29 pm

1 stop23h 43m

$868

San FranciscoAsuncion

SFO - ASU

SFOASU

San Francisco

Sat 9/6

10:55 am-12:05 am

1 stop33h 10m

Asuncion Silvio Pettirossi

Sat 9/27

1:45 am-9:10 pm

1 stop23h 25m

$868

San FranciscoAsuncion

SFO - ASU

SFOASU

San Francisco

Sat 9/6

10:55 am-5:25 am

1 stop14h 30m

Asuncion Silvio Pettirossi

Sun 9/28

1:45 am-9:10 pm

1 stop23h 25m

$868

San FranciscoAsuncion

SFO - ASU

SFOASU

San Francisco

Thu 9/4

10:55 am-12:05 am

1 stop33h 10m

Asuncion Silvio Pettirossi

Tue 9/30

1:45 am-9:10 pm

1 stop23h 25m

$868

San FranciscoAsuncion

SFO - ASU

SFOASU

San Francisco

Mon 9/8

10:55 am-12:05 am

1 stop33h 10m

Asuncion Silvio Pettirossi

Sat 9/27

1:45 am-9:10 pm

1 stop23h 25m

$868

San FranciscoAsuncion

SFO - ASU

SFOASU

San Francisco

Thu 9/4

10:55 am-12:05 am

1 stop33h 10m

Asuncion Silvio Pettirossi

Wed 9/24

1:45 am-9:10 pm

1 stop23h 25m

$868

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/16

Showing 1-10 of 22 results
1
2
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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, April is the cheapest month in which you can book a flight from San Francisco to Asuncion (average of $715). Flying from San Francisco to Asuncion in December is currently the most expensive (average of $1,024). 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.

How much does it cost to fly round-trip from San Francisco to Asuncion?

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 August 18, 2025.
Read reviews from past customers who have flown LATAM Airlines, Copa 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.
LATAM Airlines
7.5
Good
1,844 reviews

Crew

8.0

Boarding

7.6

Comfort

7.4

Food

6.7

Overall

7.5

Entertainment

7.0

Reviews

1 / 20
4.0
Okay

Murilo,Jun 2025

SFO - LAX

I had mixed feelings regarding this flight. Called several times Latam and Delta regarding the purchase of checked baggage and price. I was told 80 dollars, could not buy it ahead of time,, they told me it was not Possible, that I had to buy at the airport. Check in my luggage the attendant says 80 dollars but I was charged 200 . No one could get me a solid answer why. Very disappointing
LATAM Airlines
7.5
Good
1,844 reviews
LATAM Airlines
7.5
Good
1,844 reviews

Crew

8.0

Boarding

7.6

Comfort

7.4

Food

6.7

Overall

7.5

Entertainment

7.0

Reviews

1 / 20
4.0
Okay

Murilo,Jun 2025

SFO - LAX

I had mixed feelings regarding this flight. Called several times Latam and Delta regarding the purchase of checked baggage and price. I was told 80 dollars, could not buy it ahead of time,, they told me it was not Possible, that I had to buy at the airport. Check in my luggage the attendant says 80 dollars but I was charged 200 . No one could get me a solid answer why. Very disappointing
Copa Airlines
7.5
Good
1,510 reviews
LATAM Airlines
7.5
Good
1,844 reviews

Crew

8.0

Boarding

7.6

Comfort

7.4

Food

6.7

Overall

7.5

Entertainment

7.0

Reviews

1 / 20
4.0
Okay

Murilo,Jun 2025

SFO - LAX

I had mixed feelings regarding this flight. Called several times Latam and Delta regarding the purchase of checked baggage and price. I was told 80 dollars, could not buy it ahead of time,, they told me it was not Possible, that I had to buy at the airport. Check in my luggage the attendant says 80 dollars but I was charged 200 . No one could get me a solid answer why. Very disappointing
United Airlines
7.4
Good
8,925 reviews
LATAM Airlines
7.5
Good
1,844 reviews

Crew

8.0

Boarding

7.6

Comfort

7.4

Food

6.7

Overall

7.5

Entertainment

7.0

Reviews

1 / 20
4.0
Okay

Murilo,Jun 2025

SFO - LAX

I had mixed feelings regarding this flight. Called several times Latam and Delta regarding the purchase of checked baggage and price. I was told 80 dollars, could not buy it ahead of time,, they told me it was not Possible, that I had to buy at the airport. Check in my luggage the attendant says 80 dollars but I was charged 200 . No one could get me a solid answer why. Very disappointing

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 14h 30m. 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 $424. Other airlines that can offer you cheap pricing are LATAM Airlines, from $694, and Copa Airlines, from $797. These flights start at 59% 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, April is the cheapest month in which you can book a flight from San Francisco to Asuncion (average of $715). Flying from San Francisco to Asuncion in December is currently the most expensive (average of $1,024). 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

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 August 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
United AirlinesCheapest$424Average$867FlexibilityNo cancel feeOn-time69%
LATAM AirlinesCheapest$694Average$1,090FlexibilityNo cancel feeOn-time81%
Copa AirlinesCheapest$797Average$1,013FlexibilityNo cancel feeOn-time70%

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