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$425+ 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 3/29. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — VIE
feb. 20 — feb. 271
vie. 2/20
vie. 2/27
1 adult, Economy
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Cheap 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 enero 21, 2026.

This oojo deal was found by Cheapflights users on 1/20. 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.
mié. 4/154:52 pm
ONT
-
VIE
2 stops17h 38m
British Airways
jue. 4/237:40 am
VIE
-
ONT
2 stops23h 19m
British Airways
Deal found 1/20$902
This oojo deal was found by Cheapflights users on 1/19. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 3/162:39 pm
ONT
-
VIE
2 stops23h 56m
British Airways
lun. 3/239:15 pm
VIE
-
ONT
2 stops30h 30m
British Airways
Deal found 1/19$903
This Delta deal was found by Cheapflights users on 1/19. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 3/1112:57 pm
ONT
-
VIE
2 stops19h 13m
Delta
mar. 3/246:50 am
VIE
-
ONT
2 stops18h 23m
Delta
Deal found 1/19$922
This Delta deal was found by Cheapflights users on 1/19. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 3/1112:57 pm
ONT
-
VIE
2 stops19h 13m
Delta
vie. 3/206:15 am
VIE
-
ONT
2 stops25h 36m
Delta
Deal found 1/19$927
This United Airlines deal was found by Cheapflights users on 1/19. 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.
mié. 3/111:50 pm
ONT
-
VIE
2 stops20h 15m
United Airlines
lun. 3/2310:55 am
VIE
-
ONT
1 stop19h 23m
United Airlines
Deal found 1/19$949
This Turkish Airlines deal was found by Cheapflights users on 1/21. 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.
sáb. 3/712:02 pm
ONT
-
VIE
2 stops35h 23m
Multiple Airlines
sáb. 3/146:45 am
VIE
-
ONT
2 stops24h 47m
Multiple Airlines
Deal found 1/21$961
This United Airlines deal was found by Cheapflights users on 1/20. 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.
jue. 4/1611:05 am
ONT
-
VIE
2 stops40h 15m
United Airlines
dom. 4/1910:30 am
VIE
-
ONT
2 stops44h 56m
United Airlines
Deal found 1/20$996
This United Airlines deal was found by Cheapflights users on 1/20. 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.
vie. 5/15:00 am
ONT
-
VIE
2 stops21h 55m
United Airlines
sáb. 5/910:30 am
VIE
-
ONT
1 stop16h 31m
United Airlines
Deal found 1/20$1,002
This oojo deal was found by Cheapflights users on 1/19. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 3/112:39 pm
ONT
-
VIE
2 stops17h 31m
British Airways
lun. 3/239:15 pm
VIE
-
ONT
2 stops30h 30m
British Airways
Deal found 1/19$1,028
This oojo deal was found by Cheapflights users on 1/20. 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.
sáb. 3/215:02 pm
ONT
-
VIE
2 stops17h 08m
British Airways
mié. 4/89:25 pm
VIE
-
ONT
2 stops27h 57m
British Airways
Deal found 1/20$1,098
This oojo deal was found by Cheapflights users on 1/20. 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.
vie. 4/37:00 am
ONT
-
VIE
2 stops18h 50m
British Airways
lun. 4/139:15 pm
VIE
-
ONT
2 stops30h 22m
British Airways
Deal found 1/20$1,108
This oojo deal was found by Cheapflights users on 1/20. 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.
sáb. 2/710:58 am
ONT
-
INN
2 stops20h 27m
British Airways
dom. 2/155:25 pm
INN
-
ONT
2 stops31h 54m
British Airways
Deal found 1/20$1,519

Find flight deals from Ontario to Austria

Keep the following information in mind while searching for Ontario to Austria flight deals. Data was last updated enero 21, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

Expedia
3 stars

Round-trip from

$902
(oojo)

One-way from

$425
(Kiwi.com)

Popular in

June

Cheapest in

November

Average price

$734
Provider with most accurate pricing for Los Angeles-Vienna Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Los Angeles-Vienna Intl flights.
Search Deals
From Ontario to Austria
Search Deals
One-way flight from Ontario to Austria
Search Deals
Highest demand for flights based on searches. 19% potential increase in price ($206 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($37 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

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 enero 21, 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

mié. 3/11

12:57 pm-4:10 pm

2 stops19h 13m

Vienna Intl

mar. 3/24

6:50 am-5:13 pm

2 stops18h 23m

$922

OntarioVienna

ONT - VIE

ONTVIE

Ontario

mié. 3/11

12:57 pm-4:10 pm

2 stops19h 13m

Vienna Intl

jue. 3/26

6:15 am-11:51 pm

2 stops25h 36m

$927

OntarioVienna

ONT - VIE

ONTVIE

Ontario

mié. 3/11

1:50 pm-6:05 pm

2 stops20h 15m

Vienna Intl

lun. 3/23

10:55 am-10:18 pm

1 stop19h 23m

$949

OntarioVienna

ONT - VIE

ONTVIE

Ontario

jue. 4/16

11:05 am-12:20 pm

2 stops40h 15m

Vienna Intl

dom. 4/19

10:30 am-10:26 pm

2 stops44h 56m

$996

OntarioVienna

ONT - VIE

ONTVIE

Ontario

vie. 5/1

5:00 am-11:55 am

2 stops21h 55m

Vienna Intl

sáb. 5/9

10:30 am-6:01 pm

1 stop16h 31m

$1,002

OntarioVienna

ONT - VIE

ONTVIE

Ontario

mié. 3/11

2:39 pm-4:10 pm

2 stops17h 31m

Vienna Intl

lun. 3/23

9:15 pm-7:45 pm

2 stops30h 30m

$1,028

OntarioVienna

ONT - VIE

ONTVIE

Ontario

vie. 4/3

7:00 am-10:50 am

2 stops18h 50m

Vienna Intl

lun. 4/13

9:15 pm-6:37 pm

2 stops30h 22m

$1,108

OntarioVienna

ONT - VIE

ONTVIE

Ontario

mié. 3/11

6:15 am-8:45 am

2 stops18h 30m

Vienna Intl

mar. 3/24

10:35 am-10:18 pm

2 stops19h 43m

$1,169

OntarioVienna

ONT - VIE

ONTVIE

Ontario

vie. 3/6

6:15 am-12:20 pm

2 stops21h 05m

Vienna Intl

vie. 3/13

10:35 am-10:18 pm

2 stops43h 43m

$1,184

OntarioVienna

ONT - VIE

ONTVIE

Ontario

dom. 3/1

10:56 am-1:30 pm

2 stops17h 34m

Vienna Intl

dom. 3/8

7:25 am-9:07 pm

2 stops22h 42m

$1,202

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/20

Showing 1-10 of 25 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 Delta, United Airlines, and British Airways fly from Ontario to Austria in about 19h 13m. The time it takes to get you to your destination can typically vary by up to 1h 14m. 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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