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$513+ Cheap flights from Ontario (ONT) to Austria

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 11/14. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — VIE
Aug 25 — Sep 11
Mon 8/25
Mon 9/1
1 adult, Economy
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Cheap flight deals from Ontario to Austria

Keep the following information in mind while searching for Ontario to Austria flight deals. Data was last updated August 20, 2025.

Round-trip from

$705
(American Airlines)

One-way from

$513
(Gotogate)

Popular in

December

Cheapest in

January

Average price

$809
From Ontario to Austria
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One-way flight from Ontario to Austria
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Highest demand for flights based on searches. 3% potential increase in price ($35 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($32 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 Austria

Cheapest flights from Ontario to Austria
Explore the most affordable flight options available from Ontario to Austria. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 20, 2025.

This American Airlines deal was found by Cheapflights users on 8/18. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/812:47 pmONT - VIE
2 stops21h 33mAmerican Airlines
Wed 10/157:45 amVIE - ONT
2 stops23h 57mAmerican Airlines
Deal found 8/18$705
This British Airways deal was found by Cheapflights users on 8/18. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/84:49 pmONT - VIE
2 stops17h 31mBritish Airways
Wed 10/227:45 amVIE - ONT
2 stops20h 18mBritish Airways
Deal found 8/18$707
This United Airlines deal was found by Cheapflights users on 8/18. 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 10/77:02 amONT - VIE
1 stop16h 18mUnited Airlines
Tue 10/2110:30 amVIE - ONT
1 stop21h 00mUnited Airlines
Deal found 8/18$744
This United Airlines deal was found by Cheapflights users on 8/18. 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 9/17:00 amONT - VIE
1 stop16h 20mUnited Airlines
Tue 9/1610:30 amVIE - ONT
1 stop21h 00mUnited Airlines
Deal found 8/18$832
This United Airlines deal was found by Cheapflights users on 8/19. 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 11/57:00 amONT - VIE
1 stop16h 05mUnited Airlines
Wed 11/1910:35 amVIE - ONT
2 stops21h 16mUnited Airlines
Deal found 8/19$903
This United Airlines deal was found by Cheapflights users on 8/19. 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 11/251:29 pmONT - VIE
2 stops19h 36mUnited Airlines
Fri 12/1210:35 amVIE - ONT
2 stops21h 14mUnited Airlines
Deal found 8/19$913
This Turkish Airlines deal was found by Cheapflights users on 8/19. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/2110:56 pmONT - VIE
2 stops28h 54mMultiple Airlines
Tue 10/77:50 pmVIE - ONT
2 stops34h 39mMultiple Airlines
Deal found 8/19$937
This Turkish Airlines deal was found by Cheapflights users on 8/19. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/310:56 pmONT - VIE
2 stops25h 09mMultiple Airlines
Fri 10/106:40 amVIE - ONT
2 stops26h 23mMultiple Airlines
Deal found 8/19$939
This Air Canada deal was found by Cheapflights users on 8/19. 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 11/77:00 amONT - VIE
2 stops16h 45mMultiple Airlines
Thu 11/2010:35 amVIE - ONT
2 stops19h 09mMultiple Airlines
Deal found 8/19$956
This American Airlines deal was found by Cheapflights users on 8/18. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/112:30 pmONT - VIE
2 stops23h 10mAmerican Airlines
Sun 9/2811:35 amVIE - ONT
2 stops43h 58mAmerican Airlines
Deal found 8/18$987
This United Airlines deal was found by Cheapflights users on 8/18. 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 10/21:15 pmONT - INN
3 stops19h 55mMultiple Airlines
Thu 10/98:25 amINN - ONT
3 stops23h 27mMultiple Airlines
Deal found 8/18$1,200
This United deal was found by Cheapflights users on 8/18. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/67:00 amONT - INN
2 stops21h 55mMultiple Airlines
Fri 9/128:25 amINN - ONT
2 stops23h 05mMultiple Airlines
Deal found 8/18$2,163

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ontario to Austria 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 August 20, 2025.
Use the filters below to find and compare flights from Ontario to Austria that are best for you.

Fly from

Ontario

Fly to

Austria

Route

Depart

Return

Price

OntarioVienna

ONT - VIE

ONTVIE

Ontario

Wed 10/8

12:47 pm-7:20 pm

2 stops21h 33m

Vienna Intl

Wed 10/15

7:45 am-10:42 pm

2 stops23h 57m

$705

OntarioVienna

ONT - VIE

ONTVIE

Ontario

Wed 10/8

4:49 pm-7:20 pm

2 stops17h 31m

Vienna Intl

Wed 10/22

7:45 am-7:03 pm

2 stops20h 18m

$707

OntarioVienna

ONT - VIE

ONTVIE

Ontario

Tue 10/7

7:02 am-8:20 am

1 stop16h 18m

Vienna Intl

Tue 10/21

10:30 am-10:30 pm

1 stop21h 00m

$744

OntarioVienna

ONT - VIE

ONTVIE

Ontario

Thu 1/15

5:40 am-8:30 am

2 stops17h 50m

Vienna Intl

Thu 1/29

10:35 am-10:26 pm

2 stops20h 51m

$768

OntarioVienna

ONT - VIE

ONTVIE

Ontario

Sun 1/18

5:40 am-8:35 am

2 stops17h 55m

Vienna Intl

Sun 2/1

10:35 am-8:17 pm

2 stops18h 42m

$770

OntarioVienna

ONT - VIE

ONTVIE

Ontario

Sat 2/14

7:00 am-8:45 am

2 stops16h 45m

Vienna Intl

Sat 2/28

10:35 am-8:17 pm

2 stops18h 42m

$827

OntarioVienna

ONT - VIE

ONTVIE

Ontario

Mon 9/1

7:00 am-8:20 am

1 stop16h 20m

Vienna Intl

Tue 9/16

10:30 am-10:30 pm

1 stop21h 00m

$832

OntarioVienna

ONT - VIE

ONTVIE

Ontario

Wed 11/5

7:00 am-8:05 am

1 stop16h 05m

Vienna Intl

Wed 11/19

10:35 am-10:51 pm

2 stops21h 16m

$903

OntarioInnsbruck

ONT - INN

ONTINN

Ontario

Thu 10/2

1:15 pm-6:10 pm

3 stops19h 55m

Innsbruck Kranebitten

Thu 10/9

8:25 am-10:52 pm

3 stops23h 27m

$1,200

OntarioInnsbruck

ONT - INN

ONTINN

Ontario

Sat 9/6

7:00 am-1:55 pm

2 stops21h 55m

Innsbruck Kranebitten

Fri 9/12

8:25 am-10:30 pm

2 stops23h 05m

$2,163

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/18

Showing 1-10 of 27 results
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Best time to book a flight from Ontario to Austria

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

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

Currently, October is the cheapest month in which you can book a flight from Ontario to Austria (average of $737). Flying from Ontario to Austria in June is currently the most expensive (average of $1,231). 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 Ontario to Austria. 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 from for flights from Ontario to Austria?

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

  • How long is the flight from Ontario to Austria?

    Airlines like American Airlines, British Airways, and United Airlines fly from Ontario to Austria in about 16h 18m. The time it takes to get you to your destination can typically vary by up to 5h 15m. Ontario and Austria are separated by a distance of 6089 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

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

    The cheapest airlines for a one-way flight from Ontario to Austria are British Airways ($513), United Airlines ($569), and KLM ($917).

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

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

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

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

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

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

    Currently, October is the cheapest month in which you can book a flight from Ontario to Austria (average of $737). Flying from Ontario to Austria in June is currently the most expensive (average of $1,231). 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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