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$603+ 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 5/13. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — VIE
Feb 15 — Feb 221
Sun 2/15
Sun 2/22
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 January 16, 2026.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$891
(oojo)

One-way from

$603
(oojo)

Popular in

June

Cheapest in

November

Average price

$727
Provider with most accurate pricing for Los Angeles-Vienna Intl flight deals.
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Provider most trusted by Cheapflights users for Los Angeles-Vienna Intl flights.
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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. 19% potential increase in price ($207 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($37 potential savings vs. average RT price).
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Average for round-trip flights in January 2026
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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 January 16, 2026.

This oojo deal was found by Cheapflights users on 1/13. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/235:02 pm
ONT
-
VIE
2 stops21h 33m
British Airways
Tue 3/317:40 pm
VIE
-
ONT
2 stops29h 42m
British Airways
Deal found 1/13$891
This oojo deal was found by Cheapflights users on 1/14. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/235:02 pm
ONT
-
VIE
2 stops21h 33m
British Airways
Mon 3/3011:35 am
VIE
-
ONT
2 stops40h 07m
British Airways
Deal found 1/14$892
This oojo deal was found by Cheapflights users on 1/14. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/92:39 pm
ONT
-
VIE
2 stops23h 56m
British Airways
Mon 3/239:15 pm
VIE
-
ONT
2 stops29h 27m
British Airways
Deal found 1/14$903
This oojo deal was found by Cheapflights users on 1/15. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/205:02 pm
ONT
-
VIE
2 stops21h 33m
British Airways
Thu 4/211:15 am
VIE
-
ONT
2 stops19h 52m
British Airways
Deal found 1/15$953
This oojo deal was found by Cheapflights users on 1/14. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/184:52 pm
ONT
-
VIE
2 stops44h 38m
British Airways
Sat 5/26:55 am
VIE
-
ONT
2 stops20h 42m
British Airways
Deal found 1/14$959
This Turkish Airlines deal was found by Cheapflights users on 1/15. 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 3/112:02 pm
ONT
-
VIE
2 stops24h 53m
Multiple Airlines
Sun 3/87:20 pm
VIE
-
ONT
2 stops36h 12m
Multiple Airlines
Deal found 1/15$961
This Turkish Airlines deal was found by Cheapflights users on 1/16. 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.
Thu 4/1610:33 am
ONT
-
VIE
2 stops26h 17m
Multiple Airlines
Sun 4/197:50 pm
VIE
-
ONT
2 stops37h 09m
Multiple Airlines
Deal found 1/16$1,001
This oojo deal was found by Cheapflights users on 1/15. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/314:59 pm
ONT
-
VIE
2 stops21h 31m
British Airways
Fri 11/69:05 pm
VIE
-
ONT
2 stops33h 54m
British Airways
Deal found 1/15$1,003
This United Airlines deal was found by Cheapflights users on 1/15. 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 4/155:10 am
ONT
-
VIE
2 stops18h 00m
United Airlines
Thu 4/2310:30 am
VIE
-
ONT
1 stop20h 56m
United Airlines
Deal found 1/15$1,016
This oojo deal was found by Cheapflights users on 1/15. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/3011:25 pm
ONT
-
VIE
2 stops28h 25m
Turkish Airlines
Tue 8/114:35 pm
VIE
-
ONT
2 stops38h 34m
Turkish Airlines
Deal found 1/15$1,030
This Turkish Airlines deal was found by Cheapflights users on 1/14. 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.
Mon 2/166:14 am
ONT
-
VIE
2 stops30h 41m
Multiple Airlines
Mon 2/2310:00 am
VIE
-
ONT
2 stops38h 08m
Multiple Airlines
Deal found 1/14$1,050
This oojo deal was found by Cheapflights users on 1/14. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/94:52 pm
ONT
-
VIE
2 stops20h 38m
British Airways
Mon 5/1811:35 am
VIE
-
ONT
2 stops40h 02m
British Airways
Deal found 1/14$1,075

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 January 16, 2026.
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 4/15

4:52 pm-10:30 pm

2 stops20h 38m

Vienna Intl

Wed 4/29

11:15 am-11:46 pm

2 stops21h 31m

$903

OntarioVienna

ONT - VIE

ONTVIE

Ontario

Sat 4/18

4:52 pm-10:30 pm

2 stops44h 38m

Vienna Intl

Sat 5/2

6:55 am-6:37 pm

2 stops20h 42m

$959

OntarioVienna

ONT - VIE

ONTVIE

Ontario

Sun 3/1

12:02 pm-9:55 pm

2 stops24h 53m

Vienna Intl

Sun 3/8

7:20 pm-11:32 pm

2 stops36h 12m

$961

OntarioVienna

ONT - VIE

ONTVIE

Ontario

Thu 4/16

10:33 am-9:50 pm

2 stops26h 17m

Vienna Intl

Sun 4/19

7:50 pm-11:59 pm

2 stops37h 09m

$1,001

OntarioVienna

ONT - VIE

ONTVIE

Ontario

Wed 4/15

5:10 am-8:10 am

2 stops18h 00m

Vienna Intl

Thu 4/23

10:30 am-10:26 pm

1 stop20h 56m

$1,016

OntarioVienna

ONT - VIE

ONTVIE

Ontario

Mon 2/16

6:14 am-9:55 pm

2 stops30h 41m

Vienna Intl

Mon 2/23

10:00 am-3:08 pm

2 stops38h 08m

$1,050

OntarioVienna

ONT - VIE

ONTVIE

Ontario

Wed 3/11

1:50 pm-6:05 pm

2 stops20h 15m

Vienna Intl

Mon 3/16

10:55 am-10:18 pm

1 stop19h 23m

$1,099

OntarioVienna

ONT - VIE

ONTVIE

Ontario

Wed 3/11

6:15 am-8:45 am

2 stops18h 30m

Vienna Intl

Mon 3/16

10:40 am-10:18 pm

2 stops19h 38m

$1,114

OntarioVienna

ONT - VIE

ONTVIE

Ontario

Mon 3/9

6:37 pm-8:20 am

2 stops29h 43m

Vienna Intl

Mon 3/23

10:55 am-10:18 pm

1 stop19h 23m

$1,153

OntarioVienna

ONT - VIE

ONTVIE

Ontario

Mon 2/16

1:15 pm-5:25 pm

2 stops19h 10m

Vienna Intl

Mon 2/23

12:15 pm-12:07 pm

2 stops56h 52m

$1,157

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/14

Showing 1-10 of 37 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 $407). Flying from Ontario to Austria in June is currently the most expensive (average of $805). 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 British Airways, United Airlines, and Delta fly from Ontario to Austria in about 18h. The time it takes to get you to your destination can typically vary by up to 4h 30m. 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.

  • 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 $407). Flying from Ontario to Austria in June is currently the most expensive (average of $805). 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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