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Asuncion

$577+ 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 5/8. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — ASU
Apr 27 — May 41
Sun 4/27
Sun 5/4
1 adult, Economy
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Find cheap flights from Ontario to Asuncion with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

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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 22, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$1,518
(Mytrip)

One-way from

$577
(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 ($234 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 22, 2025.

This Mytrip deal was found by Cheapflights users on 4/22. 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.
Sun 6/19:11 pmONT - ASU
3 stops28h 59mMultiple Airlines
Sat 6/144:00 amASU - ONT
3 stops45h 55mMultiple Airlines
Deal found 4/22$1,518
This United Airlines deal was found by Cheapflights users on 4/22. 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.
Tue 4/296:10 amONT - ASU
2 stops19h 21mUnited Airlines
Fri 5/231:44 amASU - ONT
2 stops23h 26mUnited Airlines
Deal found 4/22$1,542

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 22, 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

Sun 6/1

9:11 pm-6:10 am

3 stops28h 59m

Asuncion Silvio Pettirossi

Sat 6/14

4:00 am-9:55 pm

3 stops45h 55m

$1,518

OntarioAsuncion

ONT - ASU

ONTASU

Ontario

Fri 6/20

6:00 am-5:25 am

2 stops19h 25m

Asuncion Silvio Pettirossi

Sun 6/29

1:44 am-10:52 pm

3 stops25h 08m

$1,670

OntarioAsuncion

ONT - ASU

ONTASU

Ontario

Thu 5/8

11:25 pm-4:40 am

2 stops49h 15m

$577

OntarioAsuncion

ONT - ASU

ONTASU

Ontario

Fri 5/9

6:48 pm-11:57 pm

2 stops25h 09m

$623

OntarioAsuncion

ONT - ASU

ONTASU

Ontario

Wed 5/7

1:09 am-4:40 am

3 stops23h 31m

$667

OntarioAsuncion

ONT - ASU

ONTASU

Ontario

Wed 5/28

6:41 pm-5:25 am

2 stops30h 44m

$823

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/22

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 22, 2025.
Copa Airlines
7.5
Good
1,408 reviews

Entertainment

6.8

Crew

8.1

Overall

7.5

Boarding

7.8

Comfort

7.4

Food

6.8

Reviews

1 / 20
4.0
Okay

Anonymous,Jan 2025

PTY - ORD

Our first flight was good. The return flight is a different story. I picked and paid for seat 11D and then checked in with that same seat assignment. When I boarded the plain I somehow had lost that seat and was stuck in a middle seat that I was not happy with for a 5 hour flight. The food was terrible - I could not even eat the chicken and "cheese" sandwich it was so bad. The difference in the two flights was amazing - the one from the Chicago to Panama City was great - seating and food. The return flight was very different.
Copa Airlines
7.5
Good
1,408 reviews
Copa Airlines
7.5
Good
1,408 reviews

Entertainment

6.8

Crew

8.1

Overall

7.5

Boarding

7.8

Comfort

7.4

Food

6.8

Reviews

1 / 20
4.0
Okay

Anonymous,Jan 2025

PTY - ORD

Our first flight was good. The return flight is a different story. I picked and paid for seat 11D and then checked in with that same seat assignment. When I boarded the plain I somehow had lost that seat and was stuck in a middle seat that I was not happy with for a 5 hour flight. The food was terrible - I could not even eat the chicken and "cheese" sandwich it was so bad. The difference in the two flights was amazing - the one from the Chicago to Panama City was great - seating and food. The return flight was very different.
United Airlines
7.4
Good
8,683 reviews
Copa Airlines
7.5
Good
1,408 reviews

Entertainment

6.8

Crew

8.1

Overall

7.5

Boarding

7.8

Comfort

7.4

Food

6.8

Reviews

1 / 20
4.0
Okay

Anonymous,Jan 2025

PTY - ORD

Our first flight was good. The return flight is a different story. I picked and paid for seat 11D and then checked in with that same seat assignment. When I boarded the plain I somehow had lost that seat and was stuck in a middle seat that I was not happy with for a 5 hour flight. The food was terrible - I could not even eat the chicken and "cheese" sandwich it was so bad. The difference in the two flights was amazing - the one from the Chicago to Panama City was great - seating and food. The return flight was very different.
Avianca
6.7
Okay
2,319 reviews
Copa Airlines
7.5
Good
1,408 reviews

Entertainment

6.8

Crew

8.1

Overall

7.5

Boarding

7.8

Comfort

7.4

Food

6.8

Reviews

1 / 20
4.0
Okay

Anonymous,Jan 2025

PTY - ORD

Our first flight was good. The return flight is a different story. I picked and paid for seat 11D and then checked in with that same seat assignment. When I boarded the plain I somehow had lost that seat and was stuck in a middle seat that I was not happy with for a 5 hour flight. The food was terrible - I could not even eat the chicken and "cheese" sandwich it was so bad. The difference in the two flights was amazing - the one from the Chicago to Panama City was great - seating and food. The return flight was very different.

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.

  • What are the cheapest airlines to fly from Ontario to Asuncion one-way?

    The cheapest airline one-way is Avianca, with whom users have recently found tickets for as low as $577. However, be on the lookout for offers from Copa Airlines and United Airlines, as they are both options that can get you from Ontario to Asuncion for a low price.

  • 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.

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