ASU - SFO

$409 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 11/18. 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
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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

Tue, Apr 14 - Thu, Apr 23
Multiple Airlines Logo
8:25 am - 11:49 pmASU-SFO
19h 24m2 stops
Multiple Airlines Logo
6:00 am - 5:40 pmSFO-ASU
31h 40m2 stops
$989Multiple Airlines
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Tue, Apr 14 - Thu, Apr 23
Multiple Airlines Logo
8:25 am - 11:49 pmASU-SFO
19h 24m2 stops
Multiple Airlines Logo
4:55 pm - 6:10 amSFO-ASU
33h 15m2 stops
$1,002Multiple Airlines
Find Deal
Tue, Dec 16 - Tue, Jan 13
Multiple Airlines Logo
8:25 am - 12:20 amASU-SFO
20h 55m2 stops
Multiple Airlines Logo
7:30 am - 5:40 pmSFO-ASU
29h 10m2 stops
$1,061Multiple Airlines
Find Deal
Tue, Apr 14 - Wed, Apr 22
Copa Airlines Logo
6:42 am - 11:40 pmASU-SFO
20h 58m1 stop
Copa Airlines Logo
1:42 am - 5:37 amSFO-ASU
23h 55m1 stop
$1,092Copa Airlines
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Mon, Apr 13 - Wed, Apr 22
Copa Airlines Logo
1:59 am - 11:40 pmASU-SFO
25h 41m1 stop
Copa Airlines Logo
1:42 am - 5:37 amSFO-ASU
23h 55m1 stop
$1,112Copa Airlines
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Tue, Dec 16 - Tue, Dec 23
Multiple Airlines Logo
8:25 am - 12:20 amASU-SFO
20h 55m2 stops
Multiple Airlines Logo
11:10 pm - 5:15 amSFO-ASU
25h 05m2 stops
$1,181Multiple Airlines
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Tue, Apr 14 - Wed, Apr 22
United Airlines Logo
6:42 am - 5:12 pmASU-SFO
38h 30m2 stops
United Airlines Logo
12:45 am - 5:37 amSFO-ASU
24h 52m2 stops
$1,184United Airlines
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Sun, Jan 11 - Wed, Jan 21
LATAM Airlines Logo
11:05 am - 3:05 pmASU-SFO
33h 00m2 stops
LATAM Airlines Logo
11:02 am - 5:40 pmSFO-ASU
25h 38m2 stops
$1,393LATAM Airlines
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Tue, Apr 14 - Thu, Apr 23
United Airlines Logo
6:42 am - 11:40 pmASU-SFO
20h 58m1 stop
United Airlines Logo
5:00 am - 5:37 amSFO-ASU
20h 37m2 stops
$1,443United Airlines
Find Deal
Mon, Dec 15 - Mon, Dec 22
LATAM Airlines Logo
11:05 am - 12:55 pmASU-SFO
30h 50m2 stops
LATAM Airlines Logo
5:15 pm - 6:15 amSFO-ASU
32h 00m2 stops
$1,453LATAM Airlines
Find Deal

Everything you should know

Top airlines
Copa Airlines
Cheapest • from $1,092 (round-trip)
Copa Airlines
Best reviews • 7.6 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to travel
August
Cheapest • 51% price drop
December
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Cheapest round-trip
$989
Overall average: $1,647
Multiple Airlines
Tue 4/14Thu 4/23
ASU - SFO • 2 stops
Cheapest one-way
$409
Typical prices: $469-$594
Avianca
Tue 11/18
ASU - SFO • 3 stops
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KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to San Francisco!
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’s the cheapest day of the week to fly from Asuncion to San Francisco?

The average price of all round-trip flights from Asuncion to San Francisco clicked on KAYAK for each day over the last 12 months.

When flying from Asuncion to San Francisco, you should consider leaving on a Wednesday and avoid Saturdays if you are looking for the best rates. For your return to Asuncion, you’ll find the best rates on Thursdays and the most expensive ones on Saturdays.

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 April, where the average cost of round-trip tickets is $1,726 and $1,647 respectively.

Find deals

Good to know

Low seasonJanuary
Cheapest flight$409
Best time to beat the crowds but there is an average 53% increase in price.
Most popular time to fly and prices are also 8% lower on average.
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 $409 for a one-way ticket and $989 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.
7.6
Copa AirlinesOverall score based on 1561 reviews
7.4Comfort
8.1Crew
6.8Entertainment
6.9Food
7.8Boarding
Airline reviews

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

8.0 ExcellentAnonymous, Oct 2025PTY - IAD
Read more Copa Airlines reviews

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

the food served was an embarrassment. No connection for charging the cellphone... What a crappy airline.

Great experience with a crew always thinking in the passenger

I selected first class expecting excetional service. It was mediocre at best. The food service was cold, meal choices was poor and on one leg they did provide dessert. I did enjoy the lay day seat but the movies were old and nothing current. Boarding the plane is always hot. So boarding is quite warm until your in the air. I took a small personal air fan. Update the meals and movies.

Did upgrade, travel in business it was great (more room I could sleep)

Had to go through security at the gate again. Had to take off shoes and go through the whole thing again even though we have global entry. They asked us to check in items bought at duty free during our layover and since we checked our luggage at the original departure airport, they forced us to check in a small backpack. None of this ever happened with other airlines. In addition, no vegetarian food option and no snacks during a 7 hr flight. Luggage limits are unusually small. This is unacceptable. Will NEVER fly Copa again and will tell friends and family to avoid this airline.

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)

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