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Asuncion

$552+ Cheap flights from Ontario (ONT) to Asuncion (ASU)

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 1/6. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — ASU
ene. 11 — ene. 181
dom. 1/11
dom. 1/18
1 adult, Economy
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Cheap flight deals from Ontario to Asuncion

Cheapest flights from Ontario to Asuncion
Explore the most affordable flight options available from Ontario to Asuncion. Find the lowest fares from popular airlines and budget airlines, with prices last updated on diciembre 12, 2025.

This Mytrip deal was found by Cheapflights users on 12/10. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 12/2811:02 pmONT - ASU
3 stops26h 13mMultiple Airlines
jue. 1/88:20 amASU - ONT
2 stops17h 35mMultiple Airlines
Deal found 12/10$1,895
This Mytrip deal was found by Cheapflights users on 12/10. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 12/2611:02 pmONT - ASU
3 stops25h 28mMultiple Airlines
mar. 12/306:33 amASU - ONT
3 stops21h 19mMultiple Airlines
Deal found 12/10$1,970
This United Airlines deal was found by Cheapflights users on 12/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 12/286:04 amONT - ASU
2 stops18h 26mUnited Airlines
jue. 1/86:42 amASU - ONT
2 stops20h 16mUnited Airlines
Deal found 12/10$5,534

Find flight deals from Ontario to Asuncion

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Asuncion (ASU). 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 diciembre 12, 2025.

Most accurate provider

Expedia
2 stars

Most trusted provider

Expedia
3 stars

Round-trip from

$1,582
(Mytrip)

One-way from

$552
(CheapOair)

Popular in

November

Cheapest in

September

Average price

$1,034
Provider with most accurate pricing for Ontario-Asuncion Silvio Pettirossi flight deals.
Search Deals
Provider most trusted by Cheapflights users for Ontario-Asuncion Silvio Pettirossi flights.
Search Deals
From Ontario to Asuncion Silvio Pettirossi
Search Deals
One-way flight from Ontario to Asuncion Silvio Pettirossi
Search Deals
Highest demand for flights based on searches. 9% potential increase in price ($96 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($14 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ontario to Asuncion 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 diciembre 12, 2025.
Use the filters below to find and compare flights from Ontario to Asuncion that are best for you.

Fly from

Ontario

Fly to

Asuncion

Route

Depart

Return

Price

OntarioAsuncion

ONT - ASU

ONTASU

Ontario

sáb. 1/10

12:42 am-6:25 am

3 stops24h 43m

Asuncion Silvio Pettirossi

sáb. 2/7

8:20 am-8:55 pm

2 stops17h 35m

$1,582

OntarioAsuncion

ONT - ASU

ONTASU

Ontario

dom. 1/11

6:39 pm-12:14 am

2 stops24h 35m

Asuncion Silvio Pettirossi

sáb. 2/7

6:42 am-9:58 pm

2 stops20h 16m

$1,678

OntarioAsuncion

ONT - ASU

ONTASU

Ontario

mié. 1/28

8:00 am-5:37 am

2 stops16h 37m

Asuncion Silvio Pettirossi

mar. 2/24

6:42 am-10:00 pm

2 stops20h 18m

$1,751

OntarioAsuncion

ONT - ASU

ONTASU

Ontario

dom. 12/28

11:02 pm-6:15 am

3 stops26h 13m

Asuncion Silvio Pettirossi

jue. 1/8

8:20 am-8:55 pm

2 stops17h 35m

$1,895

OntarioAsuncion

ONT - ASU

ONTASU

Ontario

vie. 12/26

11:02 pm-5:30 am

3 stops25h 28m

Asuncion Silvio Pettirossi

mar. 12/30

6:33 am-10:52 pm

3 stops21h 19m

$1,970

OntarioAsuncion

ONT - ASU

ONTASU

Ontario

lun. 4/13

7:00 am-6:05 am

2 stops19h 05m

Asuncion Silvio Pettirossi

lun. 4/20

6:30 pm-11:20 am

2 stops20h 50m

$3,246

OntarioAsuncion

ONT - ASU

ONTASU

Ontario

dom. 12/28

6:04 am-5:30 am

2 stops18h 26m

Asuncion Silvio Pettirossi

jue. 1/8

6:42 am-9:58 pm

2 stops20h 16m

$5,534

OntarioAsuncion

ONT - ASU

ONTASU

Ontario

mié. 1/7

8:00 am-5:37 am

2 stops16h 37m

Asuncion Silvio Pettirossi

mié. 1/14

6:42 am-9:58 pm

2 stops20h 16m

$9,668

OntarioAsuncion

ONT - ASU

ONTASU

Ontario

mar. 1/6

10:30 pm-5:15 am

2 stops25h 45m

$552

OntarioAsuncion

ONT - ASU

ONTASU

Ontario

mar. 1/6

11:02 pm-6:25 am

3 stops26h 23m

$651

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/11

Showing 1-10 of 16 results
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  • Most accurate provider: When it comes to deals on Ontario-Asuncion flights, users find the pricing of Expedia to be most consistent on Cheapflights vs. Expedia Users can find the same prices on Ontario-Asuncion flight deals on Cheapflights vs. Expedia 90-95% of the time. Price accuracy is based on data collected from Ontario-Asuncion flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Ontario-Asuncion flights, Cheapflights users trust Expedia the most. Expedia 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 Ontario-Asuncion 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 Ontario to Asuncion

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

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

Currently, April is the cheapest month in which you can book a flight from Ontario to Asuncion (average of $334). Flying from Ontario to Asuncion in February is currently the most expensive (average of $856). 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.

Related info for your journey

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

    Departing from Ontario to Asuncion will take you 24h 35m. The distance between Ontario and Asuncion is about 5678 mi.

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

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

  • How can I find direct flights from Ontario to Asuncion?

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

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

    Yes. Cheapflights offers flight deals from Ontario to Asuncion 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 Ontario to Asuncion?

    Currently, April is the cheapest month in which you can book a flight from Ontario to Asuncion (average of $334). Flying from Ontario to Asuncion in February is currently the most expensive (average of $856). 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

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