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$659+ 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 3/19. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — VIE
Jan 11 — Jan 181
Sun 1/11
Sun 1/18
1 adult, Economy
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Cheap 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 December 12, 2025.

This oojo deal was found by Cheapflights users on 12/11. 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 12/264:47 pmONT - VIE
2 stops20h 48mBritish Airways
Fri 1/167:25 amVIE - ONT
2 stops24h 23mBritish Airways
Deal found 12/11$1,454
This oojo deal was found by Cheapflights users on 12/10. 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 12/2510:50 amONT - VIE
2 stops22h 40mBritish Airways
Thu 1/17:25 amVIE - ONT
2 stops23h 49mBritish Airways
Deal found 12/10$2,036
This CheapOair deal was found by Cheapflights users on 12/11. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/1512:13 pmONT - VIE
2 stops24h 42mMultiple Airlines
Wed 12/1710:00 amVIE - ONT
2 stops32h 50mMultiple Airlines
Deal found 12/11$2,104
This Mytrip deal was found by Cheapflights users on 12/11. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/2111:02 pmONT - VIE
3 stops31h 18mMultiple Airlines
Sun 12/288:55 pmVIE - ONT
3 stops30h 49mMultiple Airlines
Deal found 12/11$2,140
This Mytrip deal was found by Cheapflights users on 12/11. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/2111:02 pmONT - VIE
3 stops31h 18mMultiple Airlines
Mon 12/297:50 amVIE - ONT
2 stops19h 54mMultiple Airlines
Deal found 12/11$2,191
This Mytrip deal was found by Cheapflights users on 12/11. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/2112:42 amONT - VIE
3 stops29h 38mMultiple Airlines
Mon 12/297:50 amVIE - ONT
2 stops19h 54mMultiple Airlines
Deal found 12/11$2,200
This oojo deal was found by Cheapflights users on 12/10. 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.
Sun 12/142:53 pmONT - VIE
2 stops20h 32mBritish Airways
Mon 12/229:15 pmVIE - ONT
2 stops30h 01mBritish Airways
Deal found 12/10$2,205
This oojo deal was found by Cheapflights users on 12/9. 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 12/2510:50 amONT - VIE
2 stops20h 20mBritish Airways
Wed 12/3110:05 amVIE - ONT
2 stops36h 47mBritish Airways
Deal found 12/9$2,229
This oojo deal was found by Cheapflights users on 12/10. 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 12/154:47 pmONT - VIE
2 stops31h 28mBritish Airways
Sun 12/214:50 pmVIE - ONT
2 stops38h 06mBritish Airways
Deal found 12/10$2,255
This United Airlines deal was found by Cheapflights users on 12/10. 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.
Sun 12/146:00 amONT - VIE
2 stops17h 00mUnited Airlines
Mon 12/2210:55 amVIE - ONT
1 stop20h 30mUnited Airlines
Deal found 12/10$2,258
This Air Canada deal was found by Cheapflights users on 12/11. 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 12/116:00 amONT - VIE
2 stops17h 35mMultiple Airlines
Thu 12/1810:35 amVIE - ONT
2 stops19h 32mMultiple Airlines
Deal found 12/11$2,263
This oojo deal was found by Cheapflights users on 12/10. 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 12/126:00 amONT - VIE
2 stops22h 25mBritish Airways
Sun 12/214:50 pmVIE - ONT
2 stops38h 06mBritish Airways
Deal found 12/10$2,305

Find 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 December 12, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$920
(British Airways)

One-way from

$728
(oojo)

Popular in

June

Cheapest in

November

Average price

$1,109
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. 16% potential increase in price ($176 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($34 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 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 December 12, 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

Mon 2/2

4:45 pm-10:35 pm

2 stops20h 50m

Vienna Intl

Mon 2/9

7:45 pm-6:45 pm

2 stops32h 00m

$920

OntarioVienna

ONT - VIE

ONTVIE

Ontario

Fri 1/30

3:09 pm-6:25 pm

2 stops18h 16m

Vienna Intl

Fri 2/13

7:25 am-10:04 pm

2 stops23h 39m

$954

OntarioVienna

ONT - VIE

ONTVIE

Ontario

Thu 3/19

6:00 am-4:10 pm

2 stops26h 10m

Vienna Intl

Fri 3/27

7:25 am-10:07 pm

2 stops22h 42m

$954

OntarioVienna

ONT - VIE

ONTVIE

Ontario

Thu 3/19

5:15 am-8:45 am

2 stops19h 30m

Vienna Intl

Fri 3/27

10:55 am-10:25 pm

1 stop19h 30m

$1,069

OntarioVienna

ONT - VIE

ONTVIE

Ontario

Thu 1/15

6:00 am-4:10 pm

2 stops25h 10m

Vienna Intl

Wed 1/21

6:55 pm-10:13 pm

2 stops36h 18m

$1,204

OntarioVienna

ONT - VIE

ONTVIE

Ontario

Fri 4/3

5:10 am-11:55 am

2 stops21h 45m

Vienna Intl

Fri 4/10

10:30 am-10:26 pm

1 stop20h 56m

$1,253

OntarioVienna

ONT - VIE

ONTVIE

Ontario

Thu 1/8

4:45 pm-6:30 pm

2 stops16h 45m

Vienna Intl

Sun 2/22

7:25 am-10:04 pm

2 stops23h 39m

$1,254

OntarioVienna

ONT - VIE

ONTVIE

Ontario

Thu 4/30

7:00 am-8:15 am

1 stop16h 15m

Vienna Intl

Sat 5/9

10:30 am-10:26 pm

1 stop20h 56m

$1,313

OntarioVienna

ONT - VIE

ONTVIE

Ontario

Sat 5/16

7:00 am-8:20 am

2 stops16h 20m

Vienna Intl

Sun 5/24

10:30 am-8:17 pm

2 stops18h 47m

$1,326

OntarioVienna

ONT - VIE

ONTVIE

Ontario

Thu 4/30

7:00 am-8:20 am

2 stops16h 20m

Vienna Intl

Sat 5/9

10:30 am-9:01 pm

2 stops19h 31m

$1,326

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/12

Showing 1-10 of 23 results
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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 December.
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 $408). 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?

    British Airways and United Airlines can get you from Ontario to Vienna in just under 18h 16m. Your travel time can differ by up to 1h 14m. 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 $408). 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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