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$707+ Cheap flights from Austria to Ontario (ONT)

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 12/2. Fares are subject to change and may not be available on all flights or dates of travel.
VIE — ONT
Dec 1 — Dec 81
Mon 12/1
Mon 12/8
1 adult, Economy
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Find flight deals from Austria to Ontario

Cheapest flights from Austria to Ontario
Explore the most affordable flight options available from Austria to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 1, 2025.

This United Airlines deal was found by Cheapflights users on 10/29. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/410:35 amVIE - ONT
2 stops21h 14mUnited Airlines
Fri 12/121:34 pmONT - VIE
2 stops19h 31mUnited Airlines
Deal found 10/29$842
This Air Canada deal was found by Cheapflights users on 10/31. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/1410:35 amVIE - ONT
2 stops19h 07mMultiple Airlines
Sat 1/246:00 amONT - VIE
2 stops17h 45mMultiple Airlines
Deal found 10/31$844
This Delta deal was found by Cheapflights users on 10/30. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/36:50 amVIE - ONT
2 stops21h 49mDelta
Tue 12/912:12 pmONT - VIE
2 stops19h 03mDelta
Deal found 10/30$861
This United Airlines deal was found by Cheapflights users on 10/31. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/1010:55 amVIE - ONT
1 stop16h 41mUnited Airlines
Mon 11/241:29 pmONT - VIE
2 stops19h 36mUnited Airlines
Deal found 10/31$889
This United Airlines deal was found by Cheapflights users on 10/29. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/810:55 amVIE - ONT
1 stop20h 36mUnited Airlines
Wed 11/267:00 amONT - VIE
1 stop16h 05mUnited Airlines
Deal found 10/29$894
This United Airlines deal was found by Cheapflights users on 10/29. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/510:55 amVIE - ONT
1 stop20h 36mUnited Airlines
Wed 11/197:00 amONT - VIE
1 stop16h 05mUnited Airlines
Deal found 10/29$985
This Air Canada deal was found by Cheapflights users on 10/31. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/2510:35 amVIE - ONT
2 stops19h 32mMultiple Airlines
Thu 1/86:00 amONT - VIE
2 stops17h 45mMultiple Airlines
Deal found 10/31$1,018
This United Airlines deal was found by Cheapflights users on 10/30. 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 12/2710:55 amVIE - ONT
1 stop20h 30mUnited Airlines
Sat 1/105:05 amONT - VIE
2 stops18h 20mUnited Airlines
Deal found 10/30$1,054
This Air Canada deal was found by Cheapflights users on 10/28. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/1410:35 amVIE - ONT
2 stops19h 09mMultiple Airlines
Thu 11/207:00 amONT - VIE
2 stops16h 45mMultiple Airlines
Deal found 10/28$1,069
This United Airlines deal was found by Cheapflights users on 10/29. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/17:00 amVIE - ONT
2 stops21h 44mUnited Airlines
Sun 11/91:29 pmONT - VIE
2 stops19h 36mUnited Airlines
Deal found 10/29$1,118
This United Airlines deal was found by Cheapflights users on 10/30. 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 11/310:30 amVIE - ONT
2 stops20h 19mUnited Airlines
Mon 11/177:00 amONT - VIE
1 stop16h 05mUnited Airlines
Deal found 10/30$1,125
This United Airlines deal was found by Cheapflights users on 10/29. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/310:30 amVIE - ONT
2 stops20h 19mUnited Airlines
Thu 11/61:29 pmONT - VIE
2 stops19h 36mUnited Airlines
Deal found 10/29$1,127

Cheap flight deals from Austria to Ontario

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

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$744
(United Airlines)

One-way from

$707
(Mytrip)

Popular in

December

Cheapest in

April

Average price

$735
Provider with most accurate pricing for Vienna Intl-Los Angeles flight deals.
Search Deals
Provider most trusted by Cheapflights users for Vienna Intl-Los Angeles flights.
Search Deals
From Austria to Ontario
Search Deals
One-way flight from Austria to Ontario
Search Deals
Highest demand for flights based on searches. 2% potential increase in price ($20 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($13 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Austria to Ontario 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 November 1, 2025.
Use the filters below to find and compare flights from Austria to Ontario that are best for you.

Fly from

Austria

Fly to

Ontario

Route

Depart

Return

Price

ViennaOntario

VIE - ONT

VIEONT

Vienna Intl

Wed 3/4

7:00 am-8:50 pm

2 stops22h 50m

Ontario

Sun 3/8

11:50 pm-8:05 am

1 stop24h 15m

$749

ViennaOntario

VIE - ONT

VIEONT

Vienna Intl

Thu 3/5

7:00 am-10:37 pm

2 stops24h 37m

Ontario

Tue 3/10

1:45 pm-12:20 pm

2 stops38h 35m

$749

ViennaOntario

VIE - ONT

VIEONT

Vienna Intl

Thu 4/2

10:30 am-10:26 pm

1 stop20h 56m

Ontario

Thu 4/16

7:00 am-8:15 am

1 stop16h 15m

$756

ViennaOntario

VIE - ONT

VIEONT

Vienna Intl

Tue 1/27

7:00 am-5:43 pm

2 stops19h 43m

Ontario

Tue 2/3

1:24 pm-6:05 pm

2 stops19h 41m

$825

ViennaOntario

VIE - ONT

VIEONT

Vienna Intl

Wed 1/28

7:00 am-5:43 pm

2 stops19h 43m

Ontario

Wed 2/11

1:24 pm-6:05 pm

2 stops19h 41m

$825

ViennaOntario

VIE - ONT

VIEONT

Vienna Intl

Tue 1/27

7:00 am-5:43 pm

2 stops19h 43m

Ontario

Tue 2/10

1:24 pm-6:05 pm

2 stops19h 41m

$827

ViennaOntario

VIE - ONT

VIEONT

Vienna Intl

Tue 1/13

11:30 am-10:48 pm

2 stops20h 18m

Ontario

Sun 1/18

4:45 pm-8:25 pm

2 stops18h 40m

$830

ViennaOntario

VIE - ONT

VIEONT

Vienna Intl

Sun 12/14

10:35 am-8:42 pm

2 stops19h 07m

Ontario

Sat 1/24

6:00 am-8:45 am

2 stops17h 45m

$844

ViennaOntario

VIE - ONT

VIEONT

Vienna Intl

Tue 1/13

6:50 am-9:07 pm

2 stops23h 17m

Ontario

Sun 1/18

6:00 am-11:30 am

2 stops20h 30m

$856

ViennaOntario

VIE - ONT

VIEONT

Vienna Intl

Thu 12/4

6:50 am-7:39 pm

2 stops21h 49m

Ontario

Sun 12/7

12:12 pm-4:10 pm

2 stops18h 58m

$861

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/30

Showing 1-10 of 24 results
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Best time to book a flight from Austria to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Austria 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 Austria to Ontario

What is the cheapest month to book a flight from Austria to Ontario?

Currently, April is the cheapest month in which you can book a flight from Austria to Ontario (average of $347). Flying from Austria to Ontario in July is currently the most expensive (average of $677). 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.

Related info for your journey

Find useful and relevant information for your journey from Austria to Ontario. 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 Ontario from Austria?

    Ontario (ONT), located 3.1 mi from the city center, is the airport you fly into when you book flights from Austria to Ontario.

  • How long is the flight from Austria to Ontario?

    For as low as $749, United Airlines can have you in Ontario from Austria in 22h 50m. Austria and Ontario are separated by a distance of 6089 mi.

  • What are the most popular routes from Austria to Ontario?

    The most popular flight routes from Austria to Ontario are Vienna Intl - Ontario, Graz Thalerhof - Ontario and Linz Hoersching - Ontario.

  • Can I find deals for flights from Austria to Ontario that include hotel bookings?

    Yes. In addition to deals on Austria to Ontario flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Austria to Ontario?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Austria to Ontario.

  • Can I find deals for business class flights from Austria to Ontario?

    Yes. Cheapflights offers flight deals from Austria to Ontario 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 Austria to Ontario?

    Currently, April is the cheapest month in which you can book a flight from Austria to Ontario (average of $347). Flying from Austria to Ontario in July is currently the most expensive (average of $677). 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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