Skyscanner home

859 € Cheap Flights from Asuncion to San Francisco International

Compare Asuncion to San Francisco International flight deals

Find the cheapest month or even day of the year to fly to San Francisco International

Book the best San Francisco International fare with no extra fees

Flight deals from Asuncion to San Francisco International

Looking for a cheap last-minute deal or the best return flight from Asuncion Airport to San Francisco International Airport? If you want to travel next month, return fares start from 947 €. Find the lowest prices on one-way and return tickets right here.
San Francisco.859 € per passenger.Departing Fri, 18 Sep, returning Fri, 9 Oct.Return flight with Avianca and Frontier Airlines.Outbound indirect flight with Avianca, departs from Asuncion on Fri, 18 Sep, arriving in San Francisco International.Inbound indirect flight with Frontier Airlines, departs from San Francisco International on Fri, 9 Oct, arriving in Asuncion.Price includes taxes and charges.From 859 €, select.
San Francisco.876 € per passenger.Departing Sun, 30 Aug, returning Sun, 6 Sep.Return flight with Avianca and Frontier Airlines.Outbound indirect flight with Avianca, departs from Asuncion on Sun, 30 Aug, arriving in San Francisco International.Inbound indirect flight with Frontier Airlines, departs from San Francisco International on Sun, 6 Sep, arriving in Asuncion.Price includes taxes and charges.From 876 €, select.
San Francisco.917 € per passenger.Departing Thu, 3 Sep, returning Thu, 10 Sep.Return flight with JetSmart and Frontier Airlines.Outbound indirect flight with JetSmart, departs from Asuncion on Thu, 3 Sep, arriving in San Francisco International.Inbound indirect flight with Frontier Airlines, departs from San Francisco International on Thu, 10 Sep, arriving in Asuncion.Price includes taxes and charges.From 917 €, select.
San Francisco.947 € per passenger.Departing Fri, 21 Aug, returning Sat, 29 Aug.Return flight with JetSmart and Frontier Airlines.Outbound indirect flight with JetSmart, departs from Asuncion on Fri, 21 Aug, arriving in San Francisco International.Inbound indirect flight with Frontier Airlines, departs from San Francisco International on Sat, 29 Aug, arriving in Asuncion.Price includes taxes and charges.From 947 €, select.
San Francisco.984 € per passenger.Departing Sun, 1 Nov, returning Wed, 30 Dec.Return flight with LATAM Airlines.Outbound indirect flight with LATAM Airlines, departs from Asuncion on Sun, 1 Nov, arriving in San Francisco International.Inbound indirect flight with LATAM Airlines, departs from San Francisco International on Wed, 30 Dec, arriving in Asuncion.Price includes taxes and charges.From 984 €, select.
San Francisco.1.085 € per passenger.Departing Mon, 3 May, returning Mon, 17 May.Return flight with Copa.Outbound indirect flight with Copa, departs from Asuncion on Mon, 3 May, arriving in San Francisco International.Inbound indirect flight with Copa, departs from San Francisco International on Mon, 17 May, arriving in Asuncion.Price includes taxes and charges.From 1.085 €, select.
San Francisco.1.150 € per passenger.Departing Fri, 31 Jul, returning Thu, 6 Aug.Return flight with Copa and Frontier Airlines.Outbound indirect flight with Copa, departs from Asuncion on Fri, 31 Jul, arriving in San Francisco International.Inbound indirect flight with Frontier Airlines, departs from San Francisco International on Thu, 6 Aug, arriving in Asuncion.Price includes taxes and charges.From 1.150 €, select.
San Francisco.1.198 € per passenger.Departing Thu, 4 Feb, returning Sun, 14 Feb.Return flight with JetSmart and Alaska Airlines.Outbound indirect flight with JetSmart, departs from Asuncion on Thu, 4 Feb, arriving in San Francisco International.Inbound indirect flight with Alaska Airlines, departs from San Francisco International on Sun, 14 Feb, arriving in Asuncion.Price includes taxes and charges.From 1.198 €, select.
San Francisco.1.266 € per passenger.Departing Tue, 2 Mar, returning Tue, 9 Mar.Return flight with Copa.Outbound indirect flight with Copa, departs from Asuncion on Tue, 2 Mar, arriving in San Francisco International.Inbound indirect flight with Copa, departs from San Francisco International on Tue, 9 Mar, arriving in Asuncion.Price includes taxes and charges.From 1.266 €, select.
San Francisco.1.292 € per passenger.Departing Sun, 20 Dec, returning Sat, 2 Jan.Return flight with Copa.Outbound indirect flight with Copa, departs from Asuncion on Sun, 20 Dec, arriving in San Francisco International.Inbound indirect flight with Copa, departs from San Francisco International on Sat, 2 Jan, arriving in Asuncion.Price includes taxes and charges.From 1.292 €, select.
San Francisco.2.290 € per passenger.Departing Thu, 10 Dec, returning Sun, 20 Dec.Return flight with Avianca and Frontier Airlines.Outbound indirect flight with Avianca, departs from Asuncion on Thu, 10 Dec, arriving in San Francisco International.Inbound indirect flight with Frontier Airlines, departs from San Francisco International on Sun, 20 Dec, arriving in Asuncion.Price includes taxes and charges.From 2.290 €, select.

Find the cheapest month to fly from Asuncion to San Francisco International

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Asuncion to San Francisco International flights are currently cheapest in September.
Jul
Find prices
Aug
from 947 €
Sep
from 917 €
Oct
Find prices
Nov
Find prices
Dec
from 2.290 €
Jan
Find prices
Feb
from 1.198 €
Mar
from 1.266 €
Apr
Find prices
May
from 1.085 €
Jun
Find prices

Asuncion to San Francisco International: Alternative routes

Compare routes from Asuncion to San Francisco below. You may find an airport to fly into that's cheaper, faster, or easier than San Francisco International.

San Francisco International

18km from central San Francisco
ClosestCheapest
from 859 €
Search flights

Oakland Metropolitan Oak

19km from central San Francisco
Search flights

Concord

40km from central San Francisco
Search flights

San Jose International

63km from central San Francisco
from 1.263 €
Search flights

San Jose Reid-Hillview

72km from central San Francisco
Search flights

Santa Rosa

88km from central San Francisco
Search flights

Asuncion to San Francisco: Flight information

The things to know before you go.
Cheapest flight found859 €
Cheapest month to flySeptember

Finding cheap flights from Asuncion to San Francisco International: Frequently asked questions

The best price we found for a return flight from Asuncion to San Francisco International is 859 €. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from Asuncion to San Francisco International. But we found flights with one or more stops from 859 €.
As of July 2026, there are no flights flying from Asuncion to San Francisco International.
The cheapest month to fly from Asuncion to San Francisco International is usually September.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Asuncion Airport to San Francisco International Airport on Friday, 18 September 2026.
No airlines currently offer direct flights between Asuncion Airport and San Francisco International Airport. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to San Francisco International but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.

We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to San Francisco is around 40 days in advance, so don’t leave your flight to the last minute.

Currently, Avianca offers the cheapest flight tickets to San Francisco International.

Flying from Asuncion Airport (ASU) to San Francisco International Airport (SFO): what you need to know

  • San Francisco's timezone is UTC-8, which makes San Francisco five hours behind Asuncion.

  • Get to the airport on time so you don't miss your ASU to SFO flight. Be there at least two hours ahead for international flights and an hour early for domestic departures to avoid a last-minute sprint to the gate.

  • You'll likely experience longer queues during popular months such as September. Arriving up to four hours in advance for an international flight and two hours for a domestic departure is a wise move.

  • Break up your flight or take a detour to a new city with a stopover. Just deselect 'Direct flights only' to see your options when searching for tickets from Asuncion Airport to San Francisco International Airport. Many passengers pass through Madrid Airport when flying between ASU and SFO.

How to find the cheapest flights from Asuncion Airport (ASU) to San Francisco International Airport (SFO)

  • At the moment, 389 € is the lowest price we've found for a one-way Asuncion Airport to San Francisco International Airport flight. The best price for a return plane ticket is 859 €. Bear in mind that fares may change due to demand when booking.

  • To pick up cheap tickets from ASU to SFO, book ahead. Airlines typically offer lower fares when flights are first made available.

  • If you're willing to be flexible with your travel dates, try using the 'Whole month' tool. It'll show you the cheapest price across each month when searching for a flight from Asuncion Airport to San Francisco International Airport.

  • Snapping up cheap flights from ASU to SFO is a breeze with Price Alerts. Simply create one of these automatic alerts and we'll let you know as soon as a new discounted fare appears.

  • Find the right flight for you by using the filters. To see the 'Fastest,' 'Best' or 'Cheapest' flights from Asuncion Airport to San Francisco International Airport, use the 'Sort by' function. You can also filter results by airline, departure and arrival times, and number of stops.

Handy information about Asuncion Airport (ASU)

  • Asuncion Airport maintains a solid on-time performance, so you're less likely to experience disruptions. Departures from ASU land at their destination as scheduled 84% of the time.

  • To reach Asuncion Airport from central Asuncion, it'll take about 25 minutes if you're travelling by car. Of course, this depends on traffic. It's approximately 16 kilometres from the airport to the city centre.

  • The trip when using public transport will take about 50 minutes.

  • Catching an early flight from Asuncion Airport to San Francisco International Airport? Avoid the last-minute rush to the terminal (and sneak in some extra snooze time) by choosing one of these hotels near ASU:

Arriving at San Francisco International Airport (SFO)

When to fly to San Francisco International Airport (SFO)

  • July is the most popular month for flights from Asuncion Airport to San Francisco International Airport. To escape the crowds, visit San Francisco in March.

  • When booking your flight from Asuncion Airport to San Francisco International Airport, consider the type of weather you enjoy. September is the warmest month in San Francisco, with temperatures ranging from 12ºC (54ºF) to 24ºC (75ºF).

  • January sees average temperatures of between 5ºC (41ºF) and 16ºC (61ºF). Look for cheap tickets from ASU to SFO around that time if you want to travel in cooler conditions.

Explore more of the United States

  • San Francisco is easy to fall in love with, but there are so many other parts of the United States just waiting to be discovered. Around 64 kilometres south-east of San Francisco, a trip to San Jose will keep your itinerary packed. Start with attractions like Winchester Mystery House, The Tech Interactive and Santa Clara Valley.

  • Around 257 kilometres south-east of San Francisco, Fresno is another favourite stop in the United States. No visit is complete without checking out Forestiere Underground Gardens, Shinzen Japanese Garden and Fresno Chaffee Zoo.

Prices shown on this page are estimated lowest prices only. Found in the last 12 days.