San Francisco

$507+ Cheap flights from Asuncion (ASU) to San Francisco (SFO)

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 6/17. Fares are subject to change and may not be available on all flights or dates of travel.
ASU — SFO
May 28 — Jun 41
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Asuncion to San Francisco with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Asuncion to San Francisco

Cheapest flights from Asuncion to San Francisco
Explore the most affordable flight options available from Asuncion to San Francisco. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 28, 2026.

This FlightHub deal was found by Cheapflights users on 4/23. 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.
Wed 6/178:25 am
ASU
-
SFO
2 stops26h 00m
Avianca
Mon 6/227:45 am
SFO
-
ASU
2 stops40h 55m
Avianca
Deal found 4/23$1,016
This Justfly.com deal was found by Cheapflights users on 4/23. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/188:10 am
ASU
-
SFO
2 stops32h 15m
Aeromexico
Wed 7/17:03 am
SFO
-
ASU
2 stops43h 02m
Aeromexico
Deal found 4/23$1,049
This Avianca deal was found by Cheapflights users on 4/24. 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 Avianca is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/178:25 am
ASU
-
SFO
2 stops26h 00m
Avianca
Mon 7/67:45 am
SFO
-
ASU
2 stops40h 55m
Avianca
Deal found 4/24$1,054
This Cheapflightsfares deal was found by Cheapflights users on 4/23. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/238:10 am
ASU
-
SFO
2 stops32h 15m
Aeromexico
Tue 6/3011:53 pm
SFO
-
ASU
2 stops22h 27m
Aeromexico
Deal found 4/23$1,066
This Flysmarter deal was found by Cheapflights users on 4/24. 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 Flysmarter is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/248:25 am
ASU
-
SFO
3 stops32h 25m
Avianca
Sun 5/3111:55 pm
SFO
-
ASU
3 stops48h 45m
Avianca
Deal found 4/24$1,071
This Cheapflightsfares deal was found by Cheapflights users on 4/24. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/198:10 am
ASU
-
SFO
2 stops32h 15m
Aeromexico
Mon 6/2911:53 pm
SFO
-
ASU
2 stops26h 12m
Aeromexico
Deal found 4/24$1,091
This Avianca deal was found by Cheapflights users on 4/27. 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 Avianca is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/78:25 am
ASU
-
SFO
2 stops26h 00m
Avianca
Mon 6/227:45 am
SFO
-
ASU
2 stops40h 55m
Avianca
Deal found 4/27$1,097
This Cheapflightsfares deal was found by Cheapflights users on 4/27. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/18:10 am
ASU
-
SFO
2 stops32h 15m
Aeromexico
Tue 6/3011:53 pm
SFO
-
ASU
2 stops22h 27m
Aeromexico
Deal found 4/27$1,101
This eDestinos deal was found by Cheapflights users on 4/24. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/188:10 am
ASU
-
SFO
2 stops32h 15m
Aeromexico
Mon 7/67:03 am
SFO
-
ASU
2 stops43h 02m
Aeromexico
Deal found 4/24$1,104

Find flight deals from Asuncion to San Francisco

Discover tips and strategies to find the most affordable flight options for your journey from Asuncion (ASU) to San Francisco (SFO). 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 April 28, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$1,016
(FlightHub)

One-way from

$507
(Cheapflightsfares)

Popular in

January

Cheapest in

August

Average price

$1,170
Provider with most accurate pricing for Asuncion Silvio Pettirossi-San Francisco flight deals.
Provider most trusted by Cheapflights users for Asuncion Silvio Pettirossi-San Francisco flights.
From Asuncion Silvio Pettirossi to San Francisco
One-way flight from Asuncion Silvio Pettirossi to San Francisco
Highest demand for flights based on searches. 20% potential increase in price ($324 potential increase over avg. RT price).
Cheapest flight prices on average. 2% potential price decrease ($34 potential savings vs. average RT price).
Average for round-trip flights in April 2026

Cheapflights Fare Finder

 
Customize your flight search to find flights from Asuncion to San Francisco 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 April 28, 2026.
Use the filters below to find and compare flights from Asuncion to San Francisco that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

AsuncionSan Francisco

ASU - SFO

ASUSFO

Asuncion Silvio Pettirossi

Sun 9/13

8:25 am-10:35 pm

2 stops42h 10m

San Francisco

Thu 9/24

11:55 pm-4:40 am

2 stops48h 45m

$1,277

AsuncionSan Francisco

ASU - SFO

ASUSFO

Asuncion Silvio Pettirossi

Fri 6/19

8:10 am-12:27 am

3 stops44h 17m

San Francisco

Fri 7/3

8:30 am-2:20 am

2 stops37h 50m

$1,314

AsuncionSan Francisco

ASU - SFO

ASUSFO

Asuncion Silvio Pettirossi

Sat 5/23

1:47 am-11:40 pm

1 stop25h 53m

San Francisco

Sat 5/30

1:12 am-12:08 am

1 stop18h 56m

$1,396

AsuncionSan Francisco

ASU - SFO

ASUSFO

Asuncion Silvio Pettirossi

Fri 6/19

6:33 am-11:40 pm

1 stop21h 07m

San Francisco

Fri 7/3

8:16 pm-11:57 pm

1 stop23h 41m

$1,464

AsuncionSan Francisco

ASU - SFO

ASUSFO

Asuncion Silvio Pettirossi

Fri 9/11

8:25 am-11:55 pm

2 stops43h 30m

San Francisco

Wed 9/23

2:15 pm-4:40 am

2 stops34h 25m

$1,491

AsuncionSan Francisco

ASU - SFO

ASUSFO

Asuncion Silvio Pettirossi

Wed 6/10

3:58 am-11:40 pm

1 stop23h 42m

San Francisco

Wed 6/17

1:12 am-5:24 am

1 stop24h 12m

$1,543
Quickest round-trip

AsuncionSan Francisco

ASU - SFO

ASUSFO

Asuncion Silvio Pettirossi

Wed 6/10

6:33 am-11:40 pm

1 stop21h 07m

San Francisco

Thu 6/25

1:12 am-12:08 am

1 stop18h 56m

$1,564

AsuncionSan Francisco

ASU - SFO

ASUSFO

Asuncion Silvio Pettirossi

Tue 6/16

1:47 am-11:40 pm

1 stop25h 53m

San Francisco

Sun 6/21

1:12 am-5:24 am

1 stop24h 12m

$1,582

AsuncionSan Francisco

ASU - SFO

ASUSFO

Asuncion Silvio Pettirossi

Sun 6/7

6:33 am-11:40 pm

1 stop21h 07m

San Francisco

Sun 6/28

1:12 am-5:24 am

1 stop24h 12m

$1,588

AsuncionSan Francisco

ASU - SFO

ASUSFO

Asuncion Silvio Pettirossi

Sun 5/31

1:47 am-11:40 pm

1 stop25h 53m

San Francisco

Tue 6/30

8:16 pm-11:57 pm

1 stop23h 41m

$1,650

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/24

Showing 1-10 of 18 resultsSorted by cheapest first
1
2
  • Most accurate provider: When it comes to deals on Asuncion-San Francisco flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Asuncion-San Francisco flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Asuncion-San Francisco flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Asuncion-San Francisco flights, Cheapflights users trust FlightHub the most. FlightHub 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 Asuncion-San Francisco 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 Asuncion to San Francisco

Have a flexible travel schedule? Discover the best time to fly to San Francisco from Asuncion 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 Asuncion to San Francisco

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

Currently, August is the cheapest month in which you can book a flight from Asuncion to San Francisco (average of $548). Flying from Asuncion to San Francisco in January is currently the most expensive (average of $1,603). 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 Asuncion to San Francisco?

Reviews of airlines servicing San Francisco

Get insights into the airlines that provide service to San Francisco. 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 San Francisco. Reviews last updated April 28, 2026.
Get a feel of what it's like to fly with Copa Airlines from Asuncion to San Francisco by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.

Comfort

7.4

Food

6.8

Entertainment

6.8

Crew

8.1

Boarding

7.8

Overall

7.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Apr 2026

LIM - PTY

Fast boarding, polite and helpful staff. Lowest cost across all airlines

Comfort

7.4

Food

6.8

Entertainment

6.8

Crew

8.1

Boarding

7.8

Overall

7.5

Reviews

1 / 20
10.0
Excellent

Anonymous,Apr 2026

LIM - PTY

Fast boarding, polite and helpful staff. Lowest cost across all airlines

Related info for your journey

Find useful and relevant information for your journey from Asuncion to San Francisco. 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 Asuncion to San Francisco?

    For as low as $1,396, Avianca can have you in San Francisco from Asuncion in 25h 53m. The distance between Asuncion and San Francisco is about 6040 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What is the cheapest airline to fly from Asuncion to San Francisco round-trip?

    Cheapflights users have booked flights from Asuncion to San Francisco round-trip from $947. Copa Airlines is priced at 23% lower than the current average price of a flight leaving 3 months from now.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Asuncion to San Francisco 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 Asuncion to San Francisco?

    Currently, August is the cheapest month in which you can book a flight from Asuncion to San Francisco (average of $548). Flying from Asuncion to San Francisco in January is currently the most expensive (average of $1,603). 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

Traveling to a place near San Francisco?

Book flights to San Francisco if you plan to visit one of these locations
South San Francisco
Santa Cruz
Santa Clara
Fairfield
Rancho Cordova
San Bruno
Watsonville
San Ramon
Emeryville
Vacaville
Roseville
San Carlos
Redwood City
Sunnyvale
Turlock
San Lorenzo
Davis
Manteca
Union City
Elk Grove

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 Asuncion to San Francisco

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

Top airline flying from Asuncion to San Francisco

Discover the top airline that operate flights from Asuncion to San Francisco. 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 April 28, 2026.
AirlineCheapestAverageFlexibilityOn-time
Copa AirlinesCheapest$947Average$1,555FlexibilityNo cancel feeOn-time70%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.