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$610+ Cheap flights from Ontario (ONT) to Vienna (VIE)

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 1/18. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — VIE
nov. 27 — dic. 41
jue. 11/27
jue. 12/4
1 adult, Economy
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1. Tell us where you want to go

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Find flight deals from Ontario to Vienna

Cheapest flights from Ontario to Vienna
Explore the most affordable flight options available from Ontario to Vienna. Find the lowest fares from popular airlines and budget airlines, with prices last updated on octubre 28, 2025.

This Expedia 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 12/36:00 amONT - VIE
2 stops30h 55mMultiple Airlines
dom. 12/710:00 amVIE - ONT
2 stops22h 29mMultiple Airlines
Deal found 10/27$994
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 12/255:05 amONT - VIE
2 stops18h 25mUnited Airlines
sáb. 1/1010:30 amVIE - ONT
2 stops19h 28mUnited Airlines
Deal found 10/28$1,008
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 12/31:34 pmONT - VIE
2 stops58h 11mUnited Airlines
dom. 12/76:50 amVIE - ONT
3 stops48h 59mUnited Airlines
Deal found 10/27$1,041
This Expedia 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 12/116:00 amONT - VIE
2 stops30h 55mMultiple Airlines
jue. 12/189:55 amVIE - ONT
2 stops23h 19mMultiple Airlines
Deal found 10/27$1,123
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.
mié. 12/106:00 amONT - VIE
3 stops27h 05mUnited Airlines
mié. 12/1710:55 amVIE - ONT
2 stops20h 54mUnited Airlines
Deal found 10/26$1,149
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.
mié. 12/36:00 amONT - VIE
2 stops17h 45mMultiple Airlines
vie. 12/1210:35 amVIE - ONT
2 stops19h 07mMultiple Airlines
Deal found 10/28$1,166
This Air Canada 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 11/276:00 amONT - VIE
2 stops17h 35mMultiple Airlines
vie. 12/1210:35 amVIE - ONT
2 stops19h 07mMultiple Airlines
Deal found 10/27$1,199

Cheap flight deals from Ontario to Vienna

Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Vienna (VIE). 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 octubre 28, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$883
(United Airlines)

One-way from

$655
(Expedia)

Popular in

June

Cheapest in

September

Average price

$733
Provider with most accurate pricing for Ontario-Vienna Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Ontario-Vienna Intl flights.
Search Deals
From Ontario to Vienna Intl
Search Deals
One-way flight from Ontario to Vienna Intl
Search Deals
Highest demand for flights based on searches. 15% potential increase in price ($161 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($32 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Ontario to Vienna 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 octubre 28, 2025.
Use the filters below to find and compare flights from Ontario to Vienna that are best for you.

Fly from

Ontario

Fly to

Vienna

Route

Depart

Return

Price

OntarioVienna

ONT - VIE

ONTVIE

Ontario

mar. 1/27

5:05 am-6:05 pm

2 stops28h 00m

Vienna Intl

mar. 2/10

10:35 am-5:43 pm

2 stops40h 08m

$883

OntarioVienna

ONT - VIE

ONTVIE

Ontario

dom. 2/8

1:04 pm-5:25 pm

2 stops19h 21m

Vienna Intl

vie. 2/20

6:50 am-3:20 pm

2 stops17h 30m

$916

OntarioVienna

ONT - VIE

ONTVIE

Ontario

mar. 2/3

6:00 am-11:30 am

2 stops20h 30m

Vienna Intl

vie. 2/20

6:50 am-3:20 pm

2 stops17h 30m

$916

OntarioVienna

ONT - VIE

ONTVIE

Ontario

jue. 3/26

7:15 pm-8:20 am

2 stops29h 05m

Vienna Intl

jue. 4/9

10:30 am-12:19 pm

2 stops34h 49m

$936

OntarioVienna

ONT - VIE

ONTVIE

Ontario

dom. 1/18

6:00 am-12:20 pm

2 stops21h 20m

Vienna Intl

dom. 5/10

10:30 am-10:26 pm

1 stop20h 56m

$949

OntarioVienna

ONT - VIE

ONTVIE

Ontario

dom. 1/18

6:00 am-12:20 pm

2 stops21h 20m

Vienna Intl

sáb. 5/9

10:30 am-10:26 pm

1 stop20h 56m

$949

OntarioVienna

ONT - VIE

ONTVIE

Ontario

dom. 1/18

5:05 am-10:30 am

3 stops44h 25m

Vienna Intl

sáb. 5/9

8:20 pm-8:35 pm

2 stops33h 15m

$987

OntarioVienna

ONT - VIE

ONTVIE

Ontario

lun. 4/20

7:00 am-8:20 am

1 stop16h 20m

Vienna Intl

mié. 5/20

10:30 am-10:26 pm

2 stops44h 56m

$1,031

OntarioVienna

ONT - VIE

ONTVIE

Ontario

lun. 4/20

7:00 am-8:20 am

1 stop16h 20m

Vienna Intl

jue. 5/21

10:30 am-5:18 pm

2 stops39h 48m

$1,032

OntarioVienna

ONT - VIE

ONTVIE

Ontario

vie. 1/16

10:58 am-1:25 pm

2 stops17h 27m

$655

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/27

Showing 1-10 of 19 results
1
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Compare providers for flights from Ontario to Vienna

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Ontario to Vienna in October.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Ontario-Vienna flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Ontario-Vienna flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Ontario-Vienna flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Ontario-Vienna flights, Cheapflights users trust eDreams the most. eDreams 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-Vienna 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 Vienna

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

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

Currently, October is the cheapest month in which you can book a flight from Ontario to Vienna (average of $412). Flying from Ontario to Vienna 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 Vienna. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Ontario to Vienna?

    Delta and United Airlines can get you from Ontario to Vienna in just under 19h 21m. Your travel time can differ by up to 9h 44m. Ontario and Vienna are separated by a distance of 6089 mi. This flight may include one or multiple stops.

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

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

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

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

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

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

    Currently, October is the cheapest month in which you can book a flight from Ontario to Vienna (average of $412). Flying from Ontario to Vienna 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

Traveling to a place near Vienna?

Book flights to Vienna if you plan to visit one of these locations
Amstetten
Melk

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