$656+ 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 9/12. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — ASU
Oct 2 — Oct 91
Round-trip
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
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Ontario to Asuncion
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Best
Last-minute
One-way
Cheapest flights from Ontario to AsuncionExplore 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 September 2, 2026.
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 September 2, 2026.
This FlightHub deal was found by Cheapflights users on 8/31. 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.
Thu 9/1011:35 pm -
2 stops49h 05m
Wed 9/238:25 am -
2 stops41h 20m
Deal found 8/31![Avianca logo]()
$961
This Avianca deal was found by Cheapflights users on 9/2. 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 Avianca is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/611:35 pm -
2 stops49h 05m
Fri 10/168:25 am -
2 stops41h 20m
Deal found 9/2![Avianca logo]()
$998
This Mytrip deal was found by Cheapflights users on 8/31. 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.
Sat 9/2611:35 pm -
3 stops32h 40m
Wed 9/306:35 pm -
3 stops31h 10m
Deal found 8/31![Multiple Airlines logo]()
$1,402
This Mytrip deal was found by Cheapflights users on 9/1. 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.
Wed 10/79:36 pm -
3 stops34h 39m
Mon 10/122:55 am -
3 stops24h 10m
Deal found 9/1![Multiple Airlines logo]()
$1,448
This Mytrip deal was found by Cheapflights users on 8/31. 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.
Thu 9/1011:35 pm -
3 stops31h 40m
Wed 9/236:35 pm -
3 stops31h 10m
Deal found 8/31![Multiple Airlines logo]()
$1,467
This Mytrip deal was found by Cheapflights users on 9/2. 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.
Thu 10/811:35 pm -
2 stops49h 05m
Mon 10/122:55 am -
3 stops24h 10m
Deal found 9/2![Multiple Airlines logo]()
$1,548
This FlightHub deal was found by Cheapflights users on 9/1. 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.
Thu 12/1710:45 pm -
2 stops26h 10m
Thu 1/77:55 am -
2 stops17h 55m
Deal found 9/1![Avianca logo]()
$1,575
This Mytrip deal was found by Cheapflights users on 9/2. 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.
Mon 9/219:36 pm -
3 stops27h 04m
Thu 10/12:55 am -
3 stops24h 10m
Deal found 9/2![Multiple Airlines logo]()
$1,584
Best flights from Ontario to AsuncionDiscover carefully curated flight deals from Ontario to Asuncion that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 2, 2026.
Discover carefully curated flight deals from Ontario to Asuncion that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 2, 2026.
This Avianca deal was found by Cheapflights users on 9/2. 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 Avianca is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/611:35 pm -
2 stops49h 05m
Wed 10/218:25 am -
2 stops41h 20m
Deal found 9/2![Avianca logo]()
$998
This Mytrip deal was found by Cheapflights users on 8/31. 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.
Sat 9/2611:35 pm -
3 stops32h 40m
Wed 9/306:35 pm -
3 stops31h 10m
Deal found 8/31![Multiple Airlines logo]()
$1,402
This Avianca deal was found by Cheapflights users on 9/2. 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 Avianca is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/811:35 pm -
2 stops49h 05m
Wed 10/218:25 am -
2 stops41h 20m
Deal found 9/2![Avianca logo]()
$998
This Avianca deal was found by Cheapflights users on 9/2. 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 Avianca is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/611:35 pm -
2 stops49h 05m
Fri 10/168:25 am -
2 stops41h 20m
Deal found 9/2![Avianca logo]()
$998
This Mytrip deal was found by Cheapflights users on 9/1. 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.
Wed 10/79:36 pm -
3 stops34h 39m
Mon 10/122:55 am -
3 stops24h 10m
Deal found 9/1![Multiple Airlines logo]()
$1,448
This Priceline deal was found by Cheapflights users on 8/29. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/811:35 pm -
2 stops49h 05m
Mon 10/122:55 am -
2 stops36h 11m
Deal found 8/29![Multiple Airlines logo]()
$1,565
This FlightHub deal was found by Cheapflights users on 9/1. 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.
Thu 12/1710:45 pm -
2 stops26h 10m
Thu 1/77:55 am -
2 stops17h 55m
Deal found 9/1![Avianca logo]()
$1,575
This Mytrip deal was found by Cheapflights users on 9/2. 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.
Mon 9/219:36 pm -
3 stops27h 04m
Thu 10/12:55 am -
3 stops24h 10m
Deal found 9/2![Multiple Airlines logo]()
$1,584
This Avianca deal was found by Cheapflights users on 9/2. 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 Avianca is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/811:35 pm -
2 stops49h 05m
Fri 10/168:25 am -
2 stops41h 20m
Deal found 9/2![Avianca logo]()
$2,232
Last-minute flights from Ontario to AsuncionDiscover last-minute flight deals from Ontario to Asuncion. Data last updated September 2, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to Asuncion. Data last updated September 2, 2026 and is based on user searches.
This FlightHub deal was found by Cheapflights users on 8/31. 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.
Thu 9/1011:35 pm -
2 stops49h 05m
Wed 9/238:25 am -
2 stops41h 20m
Deal found 8/31![Avianca logo]()
$961
This Mytrip deal was found by Cheapflights users on 8/31. 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.
Thu 9/1011:35 pm -
3 stops31h 40m
Wed 9/236:35 pm -
3 stops31h 10m
Deal found 8/31![Multiple Airlines logo]()
$1,467
This Mytrip deal was found by Cheapflights users on 9/2. 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.
Mon 9/219:36 pm -
3 stops27h 04m
Thu 10/12:55 am -
3 stops24h 10m
Deal found 9/2![Multiple Airlines logo]()
$1,584
This Mytrip deal was found by Cheapflights users on 8/31. 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.
Sat 9/2611:35 pm -
3 stops32h 40m
Wed 9/306:35 pm -
3 stops31h 10m
Deal found 8/31![Multiple Airlines logo]()
$1,402
This Avianca deal was found by Cheapflights users on 9/2. 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 Avianca is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/611:35 pm -
2 stops49h 05m
Fri 10/168:25 am -
2 stops41h 20m
Deal found 9/2![Avianca logo]()
$998
This Mytrip deal was found by Cheapflights users on 9/1. 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.
Wed 10/79:36 pm -
3 stops34h 39m
Mon 10/122:55 am -
3 stops24h 10m
Deal found 9/1![Multiple Airlines logo]()
$1,448
This Mytrip deal was found by Cheapflights users on 9/2. 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.
Thu 10/811:35 pm -
2 stops49h 05m
Mon 10/122:55 am -
3 stops24h 10m
Deal found 9/2![Multiple Airlines logo]()
$1,548
One-way flights from Ontario to AsuncionSearch for one-way flight options from Ontario to Asuncion. Find affordable one-way fares based on user searches. Data last updated September 2, 2026.
Search for one-way flight options from Ontario to Asuncion. Find affordable one-way fares based on user searches. Data last updated September 2, 2026.
This Mytrip deal was found by Cheapflights users on 9/1. 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.
Sat 9/129:36 pm -
3 stops28h 29m
Deal found 9/1![Multiple Airlines logo]()
$656
This Mytrip deal was found by Cheapflights users on 9/2. 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.
Sat 10/319:36 pm -
3 stops28h 39m
Deal found 9/2![Multiple Airlines logo]()
$674
This FlightHub deal was found by Cheapflights users on 9/2. 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.
Sat 10/3111:45 pm -
2 stops50h 10m
Deal found 9/2![Avianca logo]()
$727
This KAYAK deal was found by Cheapflights users on 9/2. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/86:00 am -
2 stops18h 25m
Deal found 9/2![Copa Airlines logo]()
$1,004
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 September 2, 2026.
Most accurate provider | Expedia 1 star |
|---|---|
Most trusted provider | Expedia 3 stars |
Round-trip from | $998 (Avianca) |
One-way from | $656 (Mytrip) |
Popular in | June |
Cheapest in | January |
Average price | $868 |
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 7,457,451 searches. Data last updated September 2, 2026.
Use the filters below to find and compare flights from Ontario to Asuncion that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
OntarioAsuncion
ONT Ontario - ASU Asuncion Silvio Pettirossi
ONTASU
Ontario
Tue 10/6
11:35 pm-4:40 am
2 stops49h 05m
Asuncion Silvio Pettirossi
Wed 10/21
8:25 am-9:45 pm
2 stops41h 20m
$998
OntarioAsuncion
ONT Ontario - ASU Asuncion Silvio Pettirossi
ONTASU
Ontario
Thu 10/8
11:35 pm-4:40 am
2 stops49h 05m
Asuncion Silvio Pettirossi
Wed 10/21
8:25 am-9:45 pm
2 stops41h 20m
$998
OntarioAsuncion
ONT Ontario - ASU Asuncion Silvio Pettirossi
ONTASU
Ontario
Tue 10/6
11:35 pm-4:40 am
2 stops49h 05m
Asuncion Silvio Pettirossi
Fri 10/16
8:25 am-9:45 pm
2 stops41h 20m
$998
OntarioAsuncion
ONT Ontario - ASU Asuncion Silvio Pettirossi
ONTASU
Ontario
Sat 9/26
11:35 pm-12:15 pm
3 stops32h 40m
Asuncion Silvio Pettirossi
Wed 9/30
6:35 pm-9:45 pm
3 stops31h 10m
$1,402
OntarioAsuncion
ONT Ontario - ASU Asuncion Silvio Pettirossi
ONTASU
Ontario
Wed 10/7
9:36 pm-12:15 pm
3 stops34h 39m
Asuncion Silvio Pettirossi
Mon 10/12
2:55 am-11:05 pm
3 stops24h 10m
$1,448
OntarioAsuncion
ONT Ontario - ASU Asuncion Silvio Pettirossi
ONTASU
Ontario
Thu 10/8
11:35 pm-4:40 am
2 stops49h 05m
Asuncion Silvio Pettirossi
Mon 10/12
2:55 am-11:06 am
2 stops36h 11m
$1,565
Quickest round-trip
OntarioAsuncion
ONT Ontario - ASU Asuncion Silvio Pettirossi
ONTASU
Ontario
Thu 12/17
10:45 pm-5:55 am
2 stops26h 10m
Asuncion Silvio Pettirossi
Thu 1/7
7:55 am-8:50 pm
2 stops17h 55m
$1,575
OntarioAsuncion
ONT Ontario - ASU Asuncion Silvio Pettirossi
ONTASU
Ontario
Mon 9/21
9:36 pm-4:40 am
3 stops27h 04m
Asuncion Silvio Pettirossi
Thu 10/1
2:55 am-11:05 pm
3 stops24h 10m
$1,584
OntarioAsuncion
ONT Ontario - ASU Asuncion Silvio Pettirossi
ONTASU
Ontario
Thu 10/8
11:35 pm-4:40 am
2 stops49h 05m
Asuncion Silvio Pettirossi
Fri 10/16
8:25 am-9:45 pm
2 stops41h 20m
$2,232
Cheapest one-way
OntarioAsuncion
ONT Ontario - ASU Asuncion Silvio Pettirossi
ONTASU
Ontario
Sat 9/12
9:36 pm-6:05 am
3 stops28h 29m
$656
Showing 1-10 of 13 resultsSorted by cheapest first
- 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% 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.
ONT-ASU
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.
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.
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