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Cheap flights from Ontario to Asuncion from C$ 502

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 9/12. Fares are subject to change and may not be available on all flights or dates of travel.
YYZ — ASU
6 Aug — 13 Aug1
1 adult

Cheap flight deals from Ontario to Asuncion

Keep the following information in mind while searching for Ontario to Asuncion flight deals. Data was last updated 1 August 2025.

Round-trip from

C$ 928

One-way from

C$ 502

Popular in

December

Cheapest in

May

Average price

C$ 1,340
Avianca
  • Avianca
  • 1/10-8/10
  • 2 total stops
  • 43h 10m total
  • Ontario to Asuncion
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Avianca
  • Avianca
  • 9/12
  • 1 total stop
  • 28h 45m total
  • Ontario to Asuncion
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Highest demand for flights based on searches. 11% potential increase in price (C$ 215 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease (C$ 48 potential savings vs. average RT price).
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Average for round-trip flights in August 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 1 August 2025.

Wed 1/1011:50 p.m.YYZ - ASU
1 stop27h 50mAvianca
Wed 8/108:10 a.m.ASU - YYZ
1 stop15h 20mAvianca
Deal found 30/7C$ 928
Wed 20/88:42 a.m.YUL - ASU
1 stop14h 12mCopa Airlines
Tue 26/83:48 a.m.ASU - YUL
1 stop21h 51mCopa Airlines
Deal found 30/7C$ 971
Mon 15/99:00 a.m.YYZ - ASU
1 stop14h 05mCopa Airlines
Mon 22/96:31 a.m.ASU - YYZ
1 stop19h 42mCopa Airlines
Deal found 1/8C$ 1,050
Mon 15/93:00 p.m.YYZ - ASU
2 stops19h 40mMultiple Airlines
Mon 22/912:30 p.m.ASU - YYZ
2 stops24h 22mMultiple Airlines
Deal found 1/8C$ 1,052
Thu 16/108:30 a.m.YYZ - ASU
2 stops38h 31mUnited Airlines
Sun 19/101:45 a.m.ASU - YYZ
2 stops39h 32mUnited Airlines
Deal found 31/7C$ 1,137
Fri 5/97:00 a.m.YUL - ASU
2 stops22h 10mLATAM Airlines
Thu 18/98:25 a.m.ASU - YUL
2 stops28h 09mLATAM Airlines
Deal found 30/7C$ 1,153
Thu 16/107:45 a.m.YYZ - ASU
2 stops39h 10mLATAM Airlines
Mon 20/101:10 p.m.ASU - YYZ
2 stops28h 40mLATAM Airlines
Deal found 31/7C$ 1,185
Tue 2/97:00 a.m.YUL - ASU
2 stops33h 40mMultiple Airlines
Wed 10/98:10 a.m.ASU - YUL
1 stop14h 55mMultiple Airlines
Deal found 30/7C$ 1,372

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 629,999 searches. Data last updated 1 August 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

TorontoAsuncion

YYZ - ASU

YYZASU

Toronto Pearson Intl

Wed 1/10

11:50 p.m.-4:40 a.m.

1 stop27h 50m

Asuncion Silvio Pettirossi

Wed 8/10

8:10 a.m.-10:30 p.m.

1 stop15h 20m

C$ 928

MontrealAsuncion

YUL - ASU

YULASU

Montreal Pierre Elliott Trudeau Intl

Wed 20/8

8:42 a.m.-11:54 p.m.

1 stop14h 12m

Asuncion Silvio Pettirossi

Tue 26/8

3:48 a.m.-12:39 a.m.

1 stop21h 51m

C$ 971

TorontoAsuncion

YYZ - ASU

YYZASU

Toronto Pearson Intl

Mon 15/9

9:00 a.m.-12:05 a.m.

1 stop14h 05m

Asuncion Silvio Pettirossi

Mon 22/9

6:31 a.m.-1:13 a.m.

1 stop19h 42m

C$ 1,050

TorontoAsuncion

YYZ - ASU

YYZASU

Toronto Pearson Intl

Mon 15/9

3:00 p.m.-11:40 a.m.

2 stops19h 40m

Asuncion Silvio Pettirossi

Mon 22/9

12:30 p.m.-11:52 a.m.

2 stops24h 22m

C$ 1,052

TorontoAsuncion

YYZ - ASU

YYZASU

Toronto Pearson Intl

Thu 16/10

8:30 a.m.-12:01 a.m.

2 stops38h 31m

Asuncion Silvio Pettirossi

Sun 19/10

1:45 a.m.-4:17 p.m.

2 stops39h 32m

C$ 1,137

MontrealAsuncion

YUL - ASU

YULASU

Montreal Pierre Elliott Trudeau Intl

Fri 5/9

7:00 a.m.-6:10 a.m.

2 stops22h 10m

Asuncion Silvio Pettirossi

Thu 18/9

8:25 a.m.-11:34 a.m.

2 stops28h 09m

C$ 1,153

TorontoAsuncion

YYZ - ASU

YYZASU

Toronto Pearson Intl

Thu 16/10

7:45 a.m.-11:55 p.m.

2 stops39h 10m

Asuncion Silvio Pettirossi

Mon 20/10

1:10 p.m.-4:50 p.m.

2 stops28h 40m

C$ 1,185

MontrealAsuncion

YUL - ASU

YULASU

Montreal Pierre Elliott Trudeau Intl

Tue 2/9

7:00 a.m.-5:40 p.m.

2 stops33h 40m

Asuncion Silvio Pettirossi

Wed 10/9

8:10 a.m.-10:05 p.m.

1 stop14h 55m

C$ 1,372

TorontoAsuncion

YYZ - ASU

YYZASU

Toronto Pearson Intl

Tue 9/12

10:55 p.m.-5:40 a.m.

1 stop28h 45m

C$ 502

MontrealAsuncion

YUL - ASU

YULASU

Montreal Pierre Elliott Trudeau Intl

Tue 26/8

8:42 a.m.-5:40 p.m.

2 stops31h 58m

C$ 541

Flights are sorted by cheapest round-trip flights first.

Deals found on 31/7

Showing 1-10 of 20 results
1
2

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 time of day to fly from ON to ASU?

Find hourly flight availability from Ontario to Asuncion. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated 1 August 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Region of Ontario to Asuncion as you normally would.

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 1 August 2025.
Read reviews from past customers who have flown LATAM Airlines,Copa Airlines, andUnited Airlines from Ontario to Asuncion. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
LATAM Airlines
7.5
Good
1,823 reviews
Check prices

Comfort

7.4

Entertainment

7.0

Overall

7.5

Boarding

7.6

Crew

8.1

Food

6.7

Reviews

1 / 20
4.0
Okay

Murilo,Jun 2025

SFO - LAX

I had mixed feelings regarding this flight. Called several times Latam and Delta regarding the purchase of checked baggage and price. I was told 80 dollars, could not buy it ahead of time,, they told me it was not Possible, that I had to buy at the airport. Check in my luggage the attendant says 80 dollars but I was charged 200 . No one could get me a solid answer why. Very disappointing
LATAM Airlines
7.5
Good
1,823 reviews
LATAM Airlines
7.5
Good
1,823 reviews
Check prices

Comfort

7.4

Entertainment

7.0

Overall

7.5

Boarding

7.6

Crew

8.1

Food

6.7

Reviews

1 / 20
4.0
Okay

Murilo,Jun 2025

SFO - LAX

I had mixed feelings regarding this flight. Called several times Latam and Delta regarding the purchase of checked baggage and price. I was told 80 dollars, could not buy it ahead of time,, they told me it was not Possible, that I had to buy at the airport. Check in my luggage the attendant says 80 dollars but I was charged 200 . No one could get me a solid answer why. Very disappointing
Copa Airlines
7.5
Good
1,493 reviews
LATAM Airlines
7.5
Good
1,823 reviews
Check prices

Comfort

7.4

Entertainment

7.0

Overall

7.5

Boarding

7.6

Crew

8.1

Food

6.7

Reviews

1 / 20
4.0
Okay

Murilo,Jun 2025

SFO - LAX

I had mixed feelings regarding this flight. Called several times Latam and Delta regarding the purchase of checked baggage and price. I was told 80 dollars, could not buy it ahead of time,, they told me it was not Possible, that I had to buy at the airport. Check in my luggage the attendant says 80 dollars but I was charged 200 . No one could get me a solid answer why. Very disappointing
United Airlines
7.4
Good
8,904 reviews
LATAM Airlines
7.5
Good
1,823 reviews
Check prices

Comfort

7.4

Entertainment

7.0

Overall

7.5

Boarding

7.6

Crew

8.1

Food

6.7

Reviews

1 / 20
4.0
Okay

Murilo,Jun 2025

SFO - LAX

I had mixed feelings regarding this flight. Called several times Latam and Delta regarding the purchase of checked baggage and price. I was told 80 dollars, could not buy it ahead of time,, they told me it was not Possible, that I had to buy at the airport. Check in my luggage the attendant says 80 dollars but I was charged 200 . No one could get me a solid answer why. Very disappointing
American Airlines
7.2
Good
10,000 reviews
LATAM Airlines
7.5
Good
1,823 reviews
Check prices

Comfort

7.4

Entertainment

7.0

Overall

7.5

Boarding

7.6

Crew

8.1

Food

6.7

Reviews

1 / 20
4.0
Okay

Murilo,Jun 2025

SFO - LAX

I had mixed feelings regarding this flight. Called several times Latam and Delta regarding the purchase of checked baggage and price. I was told 80 dollars, could not buy it ahead of time,, they told me it was not Possible, that I had to buy at the airport. Check in my luggage the attendant says 80 dollars but I was charged 200 . No one could get me a solid answer why. Very disappointing
Avianca
6.7
Okay
2,388 reviews
LATAM Airlines
7.5
Good
1,823 reviews
Check prices

Comfort

7.4

Entertainment

7.0

Overall

7.5

Boarding

7.6

Crew

8.1

Food

6.7

Reviews

1 / 20
4.0
Okay

Murilo,Jun 2025

SFO - LAX

I had mixed feelings regarding this flight. Called several times Latam and Delta regarding the purchase of checked baggage and price. I was told 80 dollars, could not buy it ahead of time,, they told me it was not Possible, that I had to buy at the airport. Check in my luggage the attendant says 80 dollars but I was charged 200 . No one could get me a solid answer why. Very disappointing

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 airport do you fly into for flights to Asuncion from Ontario?

    Asuncion Silvio Pettirossi (ASU) is the airport you will fly into if you book a flight from Ontario to Asuncion. It is only a 12.6 km journey from Silvio Pettirossi (ASU) to Asuncion’s city centre.

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

    The cheapest airlines for a one-way flight from Region of Ontario to Asuncion are Avianca (C$ 502), United Airlines (C$ 581), and LATAM Airlines (C$ 588).

  • What are the most popular routes from Region of Ontario to Asuncion?

    When deciding which route to take from Region of Ontario to Asuncion consider Toronto Pearson Intl - Asuncion Silvio Pettirossi, Montreal Pierre Elliott Trudeau Intl - Asuncion Silvio Pettirossi or Toronto Island - Asuncion Silvio Pettirossi as they are the most popular.

  • 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.

See more FAQs

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Alternative routes for Ontario to Asuncion

See prices for flight routes from nearby airports that may be better suited for you.
Pierre Elliott Trudeau Intl to Asuncion flights
Pearson Intl to Asuncion flights
Winnipeg to Asuncion flights
Vancouver Intl to Asuncion flights

Top 2 airlines flying from Ontario to Asuncion

Discover the top 2 airlines that operate flights from Ontario to Asuncion. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 629,999 searches. Data last updated 1 August 2025.
AirlineCheapestAverageFlexibilityOn-time
Copa AirlinesCheapestC$ 813AverageC$ 1,067FlexibilityNo cancel feeOn-time70%
Search Copa Airlines flights
AviancaCheapestC$ 885AverageC$ 998FlexibilityNo cancel feeOn-time71%
Search Avianca flights

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