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Asuncion

$526+ 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 7/22. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — ASU
May 4 — May 111
Sun 5/4
Sun 5/11
1 adult, Economy
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Cheap 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 April 29, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$1,093
(FlightHub)

One-way from

$526
(FlightHub)

Popular in

December

Cheapest in

March

Average price

$866
Provider with most accurate pricing for Ontario-Asuncion Silvio Pettirossi flight deals.
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Provider most trusted by Cheapflights users for Ontario-Asuncion Silvio Pettirossi flights.
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From Ontario to Asuncion Silvio Pettirossi
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One-way flight from Ontario to Asuncion Silvio Pettirossi
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Highest demand for flights based on searches. 19% potential increase in price ($233 potential increase over avg. RT price).
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Cheapest flight prices on average. 8% potential price decrease ($75 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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Find 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 April 29, 2025.

This FlightHub deal was found by Cheapflights users on 4/29. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/2211:25 pmONT - ASU
2 stops49h 15mAvianca
Wed 7/308:10 amASU - ONT
2 stops41h 45mAvianca
Deal found 4/29$1,093
This Mytrip deal was found by Cheapflights users on 4/28. 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.
Tue 6/311:25 pmONT - ASU
3 stops26h 45mMultiple Airlines
Mon 6/161:10 pmASU - ONT
3 stops36h 45mMultiple Airlines
Deal found 4/28$1,408
This United Airlines deal was found by Cheapflights users on 4/28. 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.
Sat 11/86:00 amONT - ASU
2 stops36h 50mUnited Airlines
Wed 1/211:44 amASU - ONT
2 stops23h 33mUnited Airlines
Deal found 4/28$1,547

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 April 29, 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

Tue 7/22

11:25 pm-4:40 am

2 stops49h 15m

Asuncion Silvio Pettirossi

Wed 7/30

8:10 am-9:55 pm

2 stops41h 45m

$1,093

OntarioAsuncion

ONT - ASU

ONTASU

Ontario

Tue 6/3

11:25 pm-6:10 am

3 stops26h 45m

Asuncion Silvio Pettirossi

Mon 6/16

1:10 pm-9:55 pm

3 stops36h 45m

$1,408

OntarioAsuncion

ONT - ASU

ONTASU

Ontario

Sat 5/17

6:08 am-11:57 pm

2 stops37h 49m

Asuncion Silvio Pettirossi

Sat 5/24

1:44 am-9:10 pm

2 stops23h 26m

$1,582

OntarioAsuncion

ONT - ASU

ONTASU

Ontario

Tue 7/22

11:25 pm-4:40 am

2 stops49h 15m

$526

OntarioAsuncion

ONT - ASU

ONTASU

Ontario

Wed 7/23

6:00 am-4:40 am

2 stops42h 40m

$600

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/29

Compare providers for flights from Ontario to Asuncion

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 Ontario to Asuncion in April.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*2 stars
ExpediaPrice Accuracy1 starTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Ontario-Asuncion flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Ontario-Asuncion flight deals on Cheapflights vs. FlightHub >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 eDreams the most. eDreams 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 $715). Flying from Ontario to Asuncion in December is currently the most expensive (average of $1,024). 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.

Rainfall in Asuncion by month

Plan your trip to Asuncion by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Asuncion ranges from 1.6 - 5.5 inches per month. January is typically the wettest month, when rainfall can reach 5.5 in. August is typically the driest time to visit Asuncion when rainfall is around 1.6 in.

Temperature in Asuncion by month

Plan your trip to Asuncion by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Asuncion, use this chart to help with planning. For those seeking warmer temperatures, January is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of June, when temperatures are typically at their lowest (around 64.4 F).

Reviews of airlines servicing Asuncion

Get insights into the airlines that provide service to Asuncion. 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 Asuncion. Reviews last updated April 29, 2025.
United Airlines
7.4
Good
8,696 reviews

Food

6.6

Overall

7.4

Comfort

7.3

Boarding

7.7

Crew

8.1

Entertainment

7.1

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
United Airlines
7.4
Good
8,696 reviews
United Airlines
7.4
Good
8,696 reviews

Food

6.6

Overall

7.4

Comfort

7.3

Boarding

7.7

Crew

8.1

Entertainment

7.1

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??
Avianca
6.7
Okay
2,317 reviews
United Airlines
7.4
Good
8,696 reviews

Food

6.6

Overall

7.4

Comfort

7.3

Boarding

7.7

Crew

8.1

Entertainment

7.1

Reviews

1 / 20
4.0
Okay

Thomas,Mar 2025

SFO - TPE

When I asked for an extra snack, I got an unhappy look from the stewardess. Geez, does one extra snack really affect the bottom line??

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.

  • 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 $715). Flying from Ontario to Asuncion in December is currently the most expensive (average of $1,024). 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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