ASU - SFO

$474 Find Cheap Flights from Asuncion to San Francisco

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Asuncion to San Francisco departing on 5/6. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to San Francisco

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Asuncion to San Francisco, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Asuncion to San Francisco, as well as popular online travel agencies
Travelers love KAYAK
41 299 237 searches in the past 7 days on KAYAK

Save 23% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Everything you should know

Cheapest round-trip
$955
Overall average: $1,017
Avianca
Wed 5/13Mon 5/18
ASU - SFO • 3 stops
Cheapest one-way
$474
Typical prices: $484-$511
Multiple Airlines
Wed 5/6
ASU - SFO • 3 stops
Nonstop flights
Not available
There are currently no direct flights between Asuncion and San Francisco. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
When to travel
August
Cheapest • 55% price drop
June
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to San Francisco!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Asuncion to San Francisco (ASU-SFO)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Asuncion to San Francisco that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Asuncion to San Francisco

Wed, May 13 - Mon, May 18
Avianca Logo
8:25 am - 12:50 pm
ASU
-
SFO
32h 25m
3 stops
Avianca Logo
2:15 pm - 4:40 am
SFO
-
ASU
34h 25m
2 stops
$955Avianca
Wed, Jun 10 - Mon, Jun 22
Avianca Logo
8:25 am - 6:25 am
ASU
-
SFO
26h 00m
2 stops
Avianca Logo
7:45 am - 4:40 am
SFO
-
ASU
40h 55m
2 stops
$1,002Avianca
Wed, Jun 10 - Mon, Jun 22
Avianca Logo
8:25 am - 6:25 am
ASU
-
SFO
26h 00m
2 stops
Avianca Logo
7:45 am - 4:40 am
SFO
-
ASU
40h 55m
3 stops
$1,010Avianca
Wed, Aug 5 - Fri, Aug 28
Avianca Logo
8:25 am - 6:25 am
ASU
-
SFO
26h 00m
2 stops
Avianca Logo
11:55 pm - 4:40 am
SFO
-
ASU
24h 45m
2 stops
$1,014Avianca
Wed, Jun 10 - Mon, Jun 29
Avianca Logo
8:25 am - 6:25 am
ASU
-
SFO
26h 00m
2 stops
Avianca Logo
7:45 am - 4:40 am
SFO
-
ASU
40h 55m
2 stops
$1,034Avianca
Sun, Jun 7 - Mon, Jun 29
Avianca Logo
8:25 am - 6:25 am
ASU
-
SFO
26h 00m
2 stops
Avianca Logo
7:45 am - 4:40 am
SFO
-
ASU
40h 55m
2 stops
$1,038Avianca
Sun, Jun 7 - Mon, Jun 29
Avianca Logo
8:25 am - 6:25 am
ASU
-
SFO
50h 00m
2 stops
Avianca Logo
7:45 am - 4:40 am
SFO
-
ASU
40h 55m
2 stops
$1,039Avianca
Tue, Aug 11 - Thu, Aug 20
Multiple Airlines Logo
8:10 am - 11:29 pm
ASU
-
SFO
43h 19m
2 stops
Multiple Airlines Logo
2:31 pm - 6:05 am
SFO
-
ASU
35h 34m
2 stops
$1,049Multiple Airlines
Fri, Apr 24 - Mon, Apr 27
Multiple Airlines Logo
8:35 am - 12:50 pm
ASU
-
SFO
32h 15m
3 stops
Multiple Airlines Logo
11:55 pm - 4:40 am
SFO
-
ASU
24h 45m
3 stops
$1,059Multiple Airlines
Fri, Apr 24 - Mon, Apr 27
Multiple Airlines Logo
8:35 am - 12:50 pm
ASU
-
SFO
32h 15m
3 stops
Multiple Airlines Logo
2:15 pm - 4:40 am
SFO
-
ASU
34h 25m
2 stops
$1,062Multiple Airlines
Booking Insights

KAYAK's insights & trends for Asuncion to San Francisco flights

Get data-powered insights and trends into flights from Asuncion to San Francisco to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly from Asuncion to San Francisco?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Asuncion to San Francisco, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Asuncion to San Francisco is August, where tickets cost $548 (return) on average. On the other hand, the most expensive months are January and February, where the average cost of round-trip tickets is $1,603 and $1,555 respectively.

Find deals

Good to know

Low seasonNovember
Cheapest flight$474
Best time to beat the crowds but there is an average 1% increase in price.
Most popular time to fly with an average 26% increase in price.
Flight from Asuncion to San Francisco

When to book flights from Asuncion to San Francisco

Are your dates flexible? Find out the best times to travel from Asuncion to San Francisco based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Asuncion to San Francisco

  • What is the cheapest flight from Asuncion to San Francisco?

    In the last 3 days, the lowest price for a flight from Asuncion to San Francisco was $474 for a one-way ticket and $955 for a round-trip.

  • Do I need a passport to fly between Asuncion and San Francisco?

    Yes

  • Which airports will I be using when flying from Asuncion to San Francisco?

    On your way to San Francisco, you’ll fly out from Asuncion Silvio Pettirossi. You’ll be landing at San Francisco.

  • Which aircraft models fly most regularly from Asuncion to San Francisco?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Asuncion to San Francisco?

    Star Alliance is the only airline alliance operating flights between Asuncion and San Francisco.

  • How does KAYAK find such low prices on flights from Asuncion to San Francisco?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Asuncion to San Francisco.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Asuncion to San Francisco?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to San Francisco from Asuncion is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Asuncion to San Francisco?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to San Francisco with an airline and back to Asuncion with another airline. Booking your flights between Asuncion and SFO can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Asuncion to San Francisco?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to San Francisco from Asuncion up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Asuncion to San Francisco

 
See real verified KAYAK customer reviews for airlines flying from Asuncion to San Francisco. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Asuncion to San Francisco? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.5
Copa AirlinesOverall score based on 1573 reviews
8.1Crew
6.8Entertainment
6.8Food
7.4Comfort
7.8Boarding
Airline reviews

Do not book it’s a scam! They stole $1200 from me

2.0 MediocreTalicia, Mar 2026
PTY - RDU
Read more Copa Airlines reviews

Do not book it’s a scam! They stole $1200 from me

Flight got delayed; had to go through security three times.

Copa staff at PTY and one particular crew member were unhelpful & rude.

A lot things happened in this trip.The fly should be less stress.

The flight was good overall. Everything went smoothly, although the landing was a bit rough. Still, it was a pleasant experience

Some of the Air hostesses are not that friendly. Need improvement

I liked the meatloaf the chicken was awful but the plane was on time and got there and the staff was nice.

Cops Airlines is fantastic! The level of care and professionalism provided by the entire crew was top rate.

We had a great flight just wished they had a tv so we can see a movie that would of made my trip excellent.

horrible service, food was an embarrassment, no charging for cellphones, stay away

Everything you need to know for your flight from Asuncion to San Francisco

Information on your arrival and departure airports

Asuncion (ASU)
San Francisco (SFO)