$644+ Cheap flights from Asuncion (ASU) to San Francisco (SFO)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/24. Fares are subject to change and may not be available on all flights or dates of travel.
ASU — SFO
Nov 24 — Dec 11
Round-trip
1 adult, Economy
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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
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Cheapest flights from Asuncion to San FranciscoExplore 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 October 25, 2026.
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 October 25, 2026.
This Avianca deal was found by Cheapflights users on 10/22. 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 11/17:55 am -
2 stops18h 45m
Sat 11/71:30 am -
2 stops23h 25m
Deal found 10/22![Avianca logo]()
$1,352
This eDestinos deal was found by Cheapflights users on 10/24. 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.
Sun 11/87:55 am -
2 stops18h 45m
Sat 11/1411:00 pm -
2 stops25h 55m
Deal found 10/24![Avianca logo]()
$1,419
This Copa Airlines deal was found by Cheapflights users on 10/20. 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 11/16:31 am -
1 stop15h 54m
Sun 11/87:36 pm -
1 stop23h 21m
Deal found 10/20![Copa Airlines logo]()
$1,438
This LATAM Airlines deal was found by Cheapflights users on 10/20. 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.
Wed 10/218:00 am -
2 stops30h 34m
Tue 11/311:30 pm -
2 stops25h 45m
Deal found 10/20![LATAM Airlines logo]()
$1,441
This Copa Airlines deal was found by Cheapflights users on 10/21. 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 11/146:31 am -
1 stop21h 41m
Tue 11/1712:33 am -
1 stop21h 15m
Deal found 10/21![Copa Airlines logo]()
$1,484
This Avianca deal was found by Cheapflights users on 10/21. 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.
Tue 12/297:55 am -
2 stops44h 45m
Fri 1/81:00 am -
2 stops23h 55m
Deal found 10/21![Avianca logo]()
$1,556
Best flights from Asuncion to San FranciscoDiscover carefully curated flight deals from Asuncion to San Francisco that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 25, 2026.
Discover carefully curated flight deals from Asuncion to San Francisco that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 25, 2026.
This Copa Airlines deal was found by Cheapflights users on 10/24. 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 Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/73:55 am -
1 stop18h 30m
Fri 11/1312:33 am -
1 stop21h 15m
Deal found 10/24![Copa Airlines logo]()
$1,438
This eDestinos deal was found by Cheapflights users on 10/20. 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.
Sun 11/87:55 am -
2 stops18h 45m
Sat 11/1411:00 pm -
2 stops25h 55m
Deal found 10/20![Avianca logo]()
$1,456
This eDestinos deal was found by Cheapflights users on 10/22. 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.
Tue 12/299:25 pm -
3 stops43h 29m
Sat 1/98:55 am -
3 stops40h 20m
Deal found 10/22![Multiple Airlines logo]()
$1,699
This Avianca deal was found by Cheapflights users on 10/24. 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.
Tue 12/297:55 am -
2 stops44h 45m
Fri 1/81:00 am -
2 stops47h 55m
Deal found 10/24![Avianca logo]()
$1,556
This Copa Airlines deal was found by Cheapflights users on 10/24. 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 Copa Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/146:31 am -
1 stop21h 41m
Tue 11/1712:33 am -
1 stop21h 15m
Deal found 10/24![Copa Airlines logo]()
$1,655
Last-minute flights from Asuncion to San FranciscoDiscover last-minute flight deals from Asuncion to San Francisco. Data last updated October 25, 2026 and is based on user searches.
Discover last-minute flight deals from Asuncion to San Francisco. Data last updated October 25, 2026 and is based on user searches.
This Avianca deal was found by Cheapflights users on 10/22. 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 11/17:55 am -
2 stops18h 45m
Sat 11/71:30 am -
2 stops23h 25m
Deal found 10/22![Avianca logo]()
$1,352
This Copa Airlines deal was found by Cheapflights users on 10/20. 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 11/16:31 am -
1 stop15h 54m
Sun 11/87:36 pm -
1 stop23h 21m
Deal found 10/20![Copa Airlines logo]()
$1,438
This eDestinos deal was found by Cheapflights users on 10/24. 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.
Sun 11/87:55 am -
2 stops18h 45m
Sat 11/1411:00 pm -
2 stops25h 55m
Deal found 10/24![Avianca logo]()
$1,419
This LATAM Airlines deal was found by Cheapflights users on 10/20. 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.
Thu 11/1211:30 am -
2 stops28h 19m
Sun 11/157:05 am -
2 stops18h 10m
Deal found 10/20![LATAM Airlines logo]()
$1,641
This Copa Airlines deal was found by Cheapflights users on 10/21. 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 11/146:31 am -
1 stop21h 41m
Tue 11/1712:33 am -
1 stop21h 15m
Deal found 10/21![Copa Airlines logo]()
$1,484
One-way flights from Asuncion to San FranciscoSearch for one-way flight options from Asuncion to San Francisco. Find affordable one-way fares based on user searches. Data last updated October 25, 2026.
Search for one-way flight options from Asuncion to San Francisco. Find affordable one-way fares based on user searches. Data last updated October 25, 2026.
This Kiwi.com deal was found by Cheapflights users on 10/20. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 1/2410:33 pm -
3 stops30h 24m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/20![Multiple Airlines logo]()
$644
This Kiwi.com deal was found by Cheapflights users on 10/23. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/104:05 pm -
3 stops49h 24m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/23![Multiple Airlines logo]()
$649
This Copa Airlines deal was found by Cheapflights users on 10/20. 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 1/246:38 am -
1 stop15h 47m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/20![Copa Airlines logo]()
$818
This Kiwi.com deal was found by Cheapflights users on 10/21. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/67:55 am -
3 stops43h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/21![Multiple Airlines logo]()
$1,566
This Kiwi.com deal was found by Cheapflights users on 10/21. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/57:55 am -
3 stops43h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/21![Multiple Airlines logo]()
$1,628
This Kiwi.com deal was found by Cheapflights users on 10/21. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/36:31 am -
3 stops41h 54m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/21![Multiple Airlines logo]()
$1,719
This Arangrant deal was found by Cheapflights users on 10/21. 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 Arangrant is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/21:47 am -
1 stop20h 38m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/21![Copa Airlines logo]()
$1,921
This BusinessClass deal was found by Cheapflights users on 10/21. 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 BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/46:31 am -
1 stop21h 41m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/21![Copa Airlines logo]()
$2,099
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 October 25, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $1,419 (eDestinos) |
One-way from | $644 (Kiwi.com) |
Popular in | June |
Cheapest in | October |
Average price | $680 |
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 7,457,451 searches. Data last updated October 25, 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
Cheapest round-trip
AsuncionSan Francisco
ASU Asuncion Silvio Pettirossi - SFO San Francisco
ASUSFO
Asuncion Silvio Pettirossi
Sun 1/24
10:33 pm-11:57 pm
3 stops30h 24m
San Francisco
Wed 12/31
12:00 am-4:00 am
Nonstop0h 00m
$644
AsuncionSan Francisco
ASU Asuncion Silvio Pettirossi - SFO San Francisco
ASUSFO
Asuncion Silvio Pettirossi
Sat 4/10
8:00 am-10:26 pm
2 stops18h 26m
San Francisco
Wed 12/31
12:00 am-4:00 am
Nonstop0h 00m
$768
AsuncionSan Francisco
ASU Asuncion Silvio Pettirossi - SFO San Francisco
ASUSFO
Asuncion Silvio Pettirossi
Sun 1/24
6:38 am-5:25 pm
1 stop15h 47m
San Francisco
Wed 12/31
12:00 am-4:00 am
Nonstop0h 00m
$818
Quickest round-trip
AsuncionSan Francisco
ASU Asuncion Silvio Pettirossi - SFO San Francisco
ASUSFO
Asuncion Silvio Pettirossi
Sat 4/10
7:54 am-6:28 pm
1 stop14h 34m
San Francisco
Wed 12/31
12:00 am-4:00 am
Nonstop0h 00m
$818
AsuncionSan Francisco
ASU Asuncion Silvio Pettirossi - SFO San Francisco
ASUSFO
Asuncion Silvio Pettirossi
Sat 11/7
3:55 am-5:25 pm
1 stop18h 30m
San Francisco
Fri 11/13
12:33 am-2:48 am
1 stop21h 15m
$1,438
AsuncionSan Francisco
ASU Asuncion Silvio Pettirossi - SFO San Francisco
ASUSFO
Asuncion Silvio Pettirossi
Sun 11/8
7:55 am-9:40 pm
2 stops18h 45m
San Francisco
Sat 11/14
11:00 pm-5:55 am
2 stops25h 55m
$1,456
AsuncionSan Francisco
ASU Asuncion Silvio Pettirossi - SFO San Francisco
ASUSFO
Asuncion Silvio Pettirossi
Tue 12/29
7:55 am-11:40 pm
2 stops44h 45m
San Francisco
Fri 1/8
1:00 am-5:55 am
2 stops47h 55m
$1,556
AsuncionSan Francisco
ASU Asuncion Silvio Pettirossi - SFO San Francisco
ASUSFO
Asuncion Silvio Pettirossi
Fri 11/6
7:55 am-9:55 pm
3 stops43h 00m
San Francisco
Wed 12/31
12:00 am-4:00 am
Nonstop0h 00m
$1,566
AsuncionSan Francisco
ASU Asuncion Silvio Pettirossi - SFO San Francisco
ASUSFO
Asuncion Silvio Pettirossi
Thu 11/5
7:55 am-10:15 pm
3 stops43h 20m
San Francisco
Wed 12/31
12:00 am-4:00 am
Nonstop0h 00m
$1,628
AsuncionSan Francisco
ASU Asuncion Silvio Pettirossi - SFO San Francisco
ASUSFO
Asuncion Silvio Pettirossi
Sat 11/14
6:31 am-11:12 pm
1 stop21h 41m
San Francisco
Tue 11/17
12:33 am-2:48 am
1 stop21h 15m
$1,655
Showing 1-10 of 15 resultsSorted by cheapest first
Compare providers for flights from Asuncion to San Francisco
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 Asuncion to San Francisco in October.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars |
- 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.
ASU-SFO
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
How far ahead should I book a flight from Asuncion to San Francisco?
To ensure you get the cheapest price possible for a flight from Asuncion to San Francisco, you should look to book at least 52 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
What is the cheapest month to book a flight from Asuncion to San Francisco?
Currently, October is the cheapest month in which you can book a flight from Asuncion to San Francisco (average of $680). Flying from Asuncion to San Francisco in June is currently the most expensive (average of $1,690). 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?
Airfare is typical for this route at the moment.
Asuncion to San Francisco flights typically cost between $734 and $1,444 in November.The cheapest round-trip price found within the last 5 days was $1,419 on Avianca (Nov 8-Nov 14).
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 October 25, 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.
Overall
7.6
Crew
8.1
Comfort
7.4
Entertainment
6.9
Food
7.0
Boarding
7.8
Reviews
1 / 20
2.0
MediocreAnonymous,Oct 2026
BOS - PTY
Overall
7.6
Crew
8.1
Comfort
7.4
Entertainment
6.9
Food
7.0
Boarding
7.8
Reviews
1 / 20
2.0
MediocreAnonymous,Oct 2026
BOS - PTY
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.
Traveling to a place near San Francisco?
Book flights to San Francisco if you plan to visit one of these locationsSouth San Francisco
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Santa Cruz
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Fairfield
San Ramon
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Asuncion and San Francisco flights
Browse other Asuncion and San Francisco flight options. Last updated on October 25, 2026.
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Explore flights to San Francisco departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on October 25, 2026.
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 7,457,451 searches. Data last updated October 25, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$1,187 | Average$1,626 | FlexibilityNo cancel fee | On-time70% |