$675+ Cheap flights from Ontario (ONT) to Asuncion (ASU)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/17. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — ASU
Nov 26 — Dec 31
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 October 27, 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 October 27, 2026.
This FlightHub deal was found by Cheapflights users on 10/22. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/510:45 pm -
2 stops26h 10m
Sat 12/127:55 am -
2 stops17h 55m
Deal found 10/22![Avianca logo]()
$944
This Mytrip deal was found by Cheapflights users on 10/22. 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.
Sat 12/52:53 pm -
3 stops34h 02m
Sat 12/127:55 am -
2 stops21h 03m
Deal found 10/22![Multiple Airlines logo]()
$1,230
This Booking.com deal was found by Cheapflights users on 10/22. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/166:37 pm -
3 stops30h 38m
Fri 12/47:55 am -
3 stops37h 54m
Deal found 10/22![Multiple Airlines logo]()
$1,333
This Mytrip deal was found by Cheapflights users on 10/27. 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.
Fri 11/66:37 pm -
2 stops30h 18m
Sat 12/267:55 am -
2 stops19h 20m
Deal found 10/27![Multiple Airlines logo]()
$1,399
This Mytrip deal was found by Cheapflights users on 10/26. 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 11/18:35 pm -
3 stops28h 20m
Sat 11/287:55 am -
2 stops19h 20m
Deal found 10/26![Multiple Airlines logo]()
$1,486
This Justfly.com deal was found by Cheapflights users on 10/27. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/2210:45 pm -
2 stops26h 10m
Thu 1/77:55 am -
2 stops17h 55m
Deal found 10/27![Avianca logo]()
$1,763
This Mytrip deal was found by Cheapflights users on 10/27. 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 12/228:46 pm -
3 stops28h 29m
Thu 1/77:55 am -
2 stops19h 20m
Deal found 10/27![Multiple Airlines logo]()
$1,794
This United Airlines deal was found by Cheapflights users on 10/24. 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.
Sun 11/226:00 am -
2 stops36h 57m
Mon 11/306:31 am -
2 stops44h 28m
Deal found 10/24![United Airlines logo]()
$1,832
This United Airlines deal was found by Cheapflights users on 10/22. 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.
Mon 11/166:00 am -
2 stops18h 25m
Fri 12/46:32 am -
2 stops20h 27m
Deal found 10/22![United Airlines logo]()
$1,845
This Mytrip deal was found by Cheapflights users on 10/26. 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 12/216:37 pm -
2 stops30h 18m
Wed 12/307:00 pm -
3 stops32h 15m
Deal found 10/26![Multiple Airlines logo]()
$2,080
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 October 27, 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 October 27, 2026.
This FlightHub deal was found by Cheapflights users on 10/22. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/510:45 pm -
2 stops26h 10m
Sat 12/127:55 am -
2 stops17h 55m
Deal found 10/22![Avianca logo]()
$944
This Mytrip deal was found by Cheapflights users on 10/22. 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.
Sat 12/52:53 pm -
3 stops34h 02m
Sat 12/127:55 am -
2 stops21h 03m
Deal found 10/22![Multiple Airlines logo]()
$1,230
This United Airlines deal was found by Cheapflights users on 10/24. 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.
Sun 11/226:00 am -
2 stops36h 57m
Mon 11/306:31 am -
2 stops44h 28m
Deal found 10/24![United Airlines logo]()
$1,832
This LATAM Airlines deal was found by Cheapflights users on 10/26. 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 LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/17:00 am -
2 stops22h 35m
Wed 3/317:00 pm -
2 stops20h 27m
Deal found 10/26![LATAM Airlines logo]()
$1,901
This KAYAK deal was found by Cheapflights users on 10/25. 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.
Fri 1/15:55 am -
2 stops18h 41m
Sat 1/166:38 am -
2 stops19h 22m
Deal found 10/25![Copa Airlines logo]()
$1,943
This Booking.com deal was found by Cheapflights users on 10/22. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/166:37 pm -
3 stops30h 38m
Fri 12/47:55 am -
3 stops37h 54m
Deal found 10/22![Multiple Airlines logo]()
$1,333
This Mytrip deal was found by Cheapflights users on 10/27. 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.
Fri 11/66:37 pm -
2 stops30h 18m
Sat 12/267:55 am -
2 stops19h 20m
Deal found 10/27![Multiple Airlines logo]()
$1,399
This Justfly.com deal was found by Cheapflights users on 10/27. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/2210:45 pm -
2 stops26h 10m
Thu 1/77:55 am -
2 stops17h 55m
Deal found 10/27![Avianca logo]()
$1,763
This United Airlines deal was found by Cheapflights users on 10/22. 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.
Mon 11/166:00 am -
2 stops18h 25m
Fri 12/46:32 am -
2 stops20h 27m
Deal found 10/22![United Airlines logo]()
$1,845
This United Airlines deal was found by Cheapflights users on 10/26. 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.
Mon 4/196:53 pm -
2 stops31h 54m
Thu 4/227:54 am -
2 stops41h 27m
Deal found 10/26![United Airlines logo]()
$2,074
Last-minute flights from Ontario to AsuncionDiscover last-minute flight deals from Ontario to Asuncion. Data last updated October 27, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to Asuncion. Data last updated October 27, 2026 and is based on user searches.
This Mytrip deal was found by Cheapflights users on 10/26. 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 11/18:35 pm -
3 stops28h 20m
Sat 11/287:55 am -
2 stops19h 20m
Deal found 10/26![Multiple Airlines logo]()
$1,486
This LATAM Airlines deal was found by Cheapflights users on 10/26. 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 LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/17:07 am -
2 stops22h 28m
Sat 11/287:00 pm -
2 stops21h 03m
Deal found 10/26![LATAM Airlines logo]()
$6,233
This Mytrip deal was found by Cheapflights users on 10/27. 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.
Fri 11/66:37 pm -
2 stops30h 18m
Sat 12/267:55 am -
2 stops19h 20m
Deal found 10/27![Multiple Airlines logo]()
$1,399
This LATAM Airlines deal was found by Cheapflights users on 10/27. 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 LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/67:07 am -
2 stops22h 28m
Sat 12/268:00 am -
2 stops20h 40m
Deal found 10/27![LATAM Airlines logo]()
$3,750
This Booking.com deal was found by Cheapflights users on 10/22. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/166:37 pm -
3 stops30h 38m
Fri 12/47:55 am -
3 stops37h 54m
Deal found 10/22![Multiple Airlines logo]()
$1,333
This United Airlines deal was found by Cheapflights users on 10/22. 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.
Mon 11/166:00 am -
2 stops18h 25m
Fri 12/46:32 am -
2 stops20h 27m
Deal found 10/22![United Airlines logo]()
$1,845
This United Airlines deal was found by Cheapflights users on 10/24. 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.
Sun 11/226:00 am -
2 stops36h 57m
Mon 11/306:31 am -
2 stops44h 28m
Deal found 10/24![United Airlines logo]()
$1,832
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 October 27, 2026.
Search for one-way flight options from Ontario to Asuncion. Find affordable one-way fares based on user searches. Data last updated October 27, 2026.
This Mytrip deal was found by Cheapflights users on 10/26. 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 11/175:07 pm -
3 stops31h 48m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/26![Multiple Airlines logo]()
$675
This Kissandfly.com deal was found by Cheapflights users on 10/26. 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 Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/2410:45 pm -
2 stops26h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/26![Avianca logo]()
$708
This FlightHub deal was found by Cheapflights users on 10/23. 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 1/510:45 pm -
2 stops26h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/23![Avianca logo]()
$710
This Avianca deal was found by Cheapflights users on 10/23. 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 1/710:45 pm -
2 stops26h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/23![Avianca logo]()
$728
This Avianca deal was found by Cheapflights users on 10/23. 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.
Sat 1/210:45 pm -
2 stops26h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/23![Avianca logo]()
$773
This Mytrip deal was found by Cheapflights users on 10/26. 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 11/2411:40 am -
3 stops31h 17m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/26![Multiple Airlines logo]()
$838
This KAYAK deal was found by Cheapflights users on 10/23. 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.
Mon 1/45:55 am -
2 stops18h 41m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/23![Copa Airlines logo]()
$972
This United Airlines deal was found by Cheapflights users on 10/23. 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.
Sun 1/311:52 pm -
2 stops24h 44m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/23![United Airlines logo]()
$1,011
This LATAM Airlines deal was found by Cheapflights users on 10/23. 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 LATAM Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/17:06 am -
2 stops22h 29m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/23![LATAM Airlines logo]()
$1,028
This United Airlines deal was found by Cheapflights users on 10/23. 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.
Fri 1/15:55 am -
2 stops18h 41m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/23![United Airlines logo]()
$1,099
This Mytrip deal was found by Cheapflights users on 10/25. 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 11/112:05 am -
3 stops24h 50m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/25![Multiple Airlines logo]()
$1,296
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 October 27, 2026.
Most accurate provider | Expedia 1 star |
|---|---|
Most trusted provider | Expedia 3 stars |
Round-trip from | $944 (FlightHub) |
One-way from | $675 (Mytrip) |
Popular in | June |
Cheapest in | January |
Average price | $1,011 |
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 October 27, 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 11/17
5:07 pm-5:55 am
3 stops31h 48m
Asuncion Silvio Pettirossi
Wed 12/31
12:00 am-8:00 pm
Nonstop0h 00m
$675
OntarioAsuncion
ONT Ontario - ASU Asuncion Silvio Pettirossi
ONTASU
Ontario
Tue 11/24
10:45 pm-5:55 am
2 stops26h 10m
Asuncion Silvio Pettirossi
Wed 12/31
12:00 am-8:00 pm
Nonstop0h 00m
$710
OntarioAsuncion
ONT Ontario - ASU Asuncion Silvio Pettirossi
ONTASU
Ontario
Thu 1/7
10:45 pm-5:55 am
2 stops26h 10m
Asuncion Silvio Pettirossi
Wed 12/31
12:00 am-8:00 pm
Nonstop0h 00m
$728
OntarioAsuncion
ONT Ontario - ASU Asuncion Silvio Pettirossi
ONTASU
Ontario
Sat 1/2
10:45 pm-5:55 am
2 stops26h 10m
Asuncion Silvio Pettirossi
Wed 12/31
12:00 am-8:00 pm
Nonstop0h 00m
$773
OntarioAsuncion
ONT Ontario - ASU Asuncion Silvio Pettirossi
ONTASU
Ontario
Tue 11/24
11:40 am-11:57 pm
3 stops31h 17m
Asuncion Silvio Pettirossi
Wed 12/31
12:00 am-8:00 pm
Nonstop0h 00m
$838
OntarioAsuncion
ONT Ontario - ASU Asuncion Silvio Pettirossi
ONTASU
Ontario
Sat 12/5
10:45 pm-5:55 am
2 stops26h 10m
Asuncion Silvio Pettirossi
Sat 12/12
7:55 am-8:50 pm
2 stops17h 55m
$944
Quickest round-trip
OntarioAsuncion
ONT Ontario - ASU Asuncion Silvio Pettirossi
ONTASU
Ontario
Mon 11/2
6:00 am-5:25 am
2 stops18h 25m
Asuncion Silvio Pettirossi
Wed 12/31
12:00 am-8:00 pm
Nonstop0h 00m
$972
OntarioAsuncion
ONT Ontario - ASU Asuncion Silvio Pettirossi
ONTASU
Ontario
Wed 11/25
6:00 am-5:25 am
2 stops18h 25m
Asuncion Silvio Pettirossi
Wed 12/31
12:00 am-8:00 pm
Nonstop0h 00m
$1,011
OntarioAsuncion
ONT Ontario - ASU Asuncion Silvio Pettirossi
ONTASU
Ontario
Sun 1/3
11:52 pm-5:36 am
2 stops24h 44m
Asuncion Silvio Pettirossi
Wed 12/31
12:00 am-8:00 pm
Nonstop0h 00m
$1,011
OntarioAsuncion
ONT Ontario - ASU Asuncion Silvio Pettirossi
ONTASU
Ontario
Wed 1/6
1:42 pm-12:06 am
2 stops29h 24m
Asuncion Silvio Pettirossi
Wed 12/31
12:00 am-8:00 pm
Nonstop0h 00m
$1,011
Showing 1-10 of 20 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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