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$625+ 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 5/14. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — VIE
Mar 31 — Apr 71
Mon 3/31
Mon 4/7
1 adult, Economy
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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 March 26, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$997
(Gurufare)

One-way from

$625
(British Airways)

Popular in

June

Cheapest in

January

Average price

$809
Provider with most accurate pricing for Ontario-Vienna Intl flight deals.
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Provider most trusted by Cheapflights users for Ontario-Vienna Intl flights.
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From Ontario to Vienna Intl
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One-way flight from Ontario to Vienna Intl
Search Deals
Highest demand for flights based on searches. 18% potential increase in price ($234 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($34 potential savings vs. average RT price).
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Average for round-trip flights in March 2025
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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 March 26, 2025.

This United Airlines deal was found by Cheapflights users on 3/24. 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 12/37:00 amONT - VIE
1 stop16h 05mUnited Airlines
Thu 12/1110:25 amVIE - ONT
2 stops18h 52mUnited Airlines
Deal found 3/24$925
This Air Canada deal was found by Cheapflights users on 3/24. 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.
Wed 12/37:00 amONT - VIE
2 stops16h 45mMultiple Airlines
Thu 12/1110:25 amVIE - ONT
2 stops18h 52mMultiple Airlines
Deal found 3/24$952
This Gurufare deal was found by Cheapflights users on 3/25. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/257:00 amONT - VIE
2 stops18h 50mBritish Airways
Fri 5/99:25 pmVIE - ONT
2 stops35h 18mBritish Airways
Deal found 3/25$997
This Delta deal was found by Cheapflights users on 3/25. 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.
Wed 5/216:00 amONT - VIE
2 stops28h 10mDelta
Wed 6/47:05 amVIE - ONT
2 stops24h 30mDelta
Deal found 3/25$1,284
This Iberia deal was found by Cheapflights users on 3/26. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/1810:53 amONT - VIE
2 stops19h 07mIberia
Tue 6/37:00 amVIE - ONT
2 stops20h 36mIberia
Deal found 3/26$1,816
This oojo deal was found by Cheapflights users on 3/25. 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 5/2312:10 amONT - VIE
1 stop45h 50mChina Airlines
Mon 6/211:25 amVIE - ONT
1 stop39h 35mChina Airlines
Deal found 3/25$9,031

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 March 26, 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

Fri 4/25

7:00 am-10:50 am

2 stops18h 50m

Vienna Intl

Fri 5/9

9:25 pm-11:43 pm

2 stops35h 18m

$997

OntarioVienna

ONT - VIE

ONTVIE

Ontario

Wed 5/21

6:00 am-7:10 pm

2 stops28h 10m

Vienna Intl

Wed 6/4

7:05 am-10:35 pm

2 stops24h 30m

$1,284

OntarioVienna

ONT - VIE

ONTVIE

Ontario

Wed 7/23

2:21 pm-9:45 pm

2 stops22h 24m

Vienna Intl

Fri 8/8

8:05 am-12:13 am

2 stops25h 08m

$1,525

OntarioVienna

ONT - VIE

ONTVIE

Ontario

Wed 7/23

5:05 am-8:20 am

2 stops18h 15m

Vienna Intl

Fri 8/8

10:30 am-10:11 pm

1 stop20h 41m

$1,650

OntarioVienna

ONT - VIE

ONTVIE

Ontario

Sun 5/18

10:53 am-3:00 pm

2 stops19h 07m

Vienna Intl

Tue 6/3

7:00 am-6:36 pm

2 stops20h 36m

$1,816

OntarioVienna

ONT - VIE

ONTVIE

Ontario

Fri 5/23

12:10 am-7:00 am

1 stop45h 50m

Vienna Intl

Mon 6/2

11:25 am-6:00 pm

1 stop39h 35m

$9,031

OntarioVienna

ONT - VIE

ONTVIE

Ontario

Wed 5/14

1:14 pm-10:35 pm

2 stops24h 21m

$625

OntarioVienna

ONT - VIE

ONTVIE

Ontario

Wed 7/30

2:34 pm-7:00 pm

2 stops19h 26m

$634

OntarioVienna

ONT - VIE

ONTVIE

Ontario

Tue 4/22

3:55 pm-7:35 pm

2 stops18h 40m

$913

OntarioVienna

ONT - VIE

ONTVIE

Ontario

Thu 8/14

7:00 am-8:20 am

1 stop16h 20m

$928

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/24

Showing 1-10 of 13 results
1
2

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 March.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
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 FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Ontario-Vienna flight deals on Cheapflights vs. FlightHub >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 FlightHub the most. FlightHub 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 $737). Flying from Ontario to Vienna in June is currently the most expensive (average of $1,326). 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.

Rainfall in Vienna by month

Plan your trip to Vienna by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Vienna ranges from 0.8 - 2.6 inches per month. July is typically the wettest month, when rainfall can reach 2.6 in. January is typically the driest time to visit Vienna when rainfall is around 0.8 in.

Temperature in Vienna by month

Plan your trip to Vienna by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Vienna, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 71.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 33.8 F).

Reviews of airlines servicing Vienna

Get insights into the airlines that provide service to Vienna. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Vienna. Reviews last updated March 26, 2025.
China Airlines
8.2
Very good
722 reviews

Boarding

8.3

Entertainment

8.0

Overall

8.2

Comfort

8.0

Crew

8.5

Food

7.8

Reviews

1 / 20
10.0
Excellent

Sopharith,Feb 2025

TPE - PNH

All are excellence, but we had to pay 150$ extra charge each person with our names in passports and tickets. It was just swiping between first names and last names. It might be our mistake when we bought the tickets, but I thought it was expensive just to swipe the names. Anyway, thanks a lot. All excellence
China Airlines
8.2
Very good
722 reviews
China Airlines
8.2
Very good
722 reviews

Boarding

8.3

Entertainment

8.0

Overall

8.2

Comfort

8.0

Crew

8.5

Food

7.8

Reviews

1 / 20
10.0
Excellent

Sopharith,Feb 2025

TPE - PNH

All are excellence, but we had to pay 150$ extra charge each person with our names in passports and tickets. It was just swiping between first names and last names. It might be our mistake when we bought the tickets, but I thought it was expensive just to swipe the names. Anyway, thanks a lot. All excellence
Delta
8.0
Very good
7,891 reviews
China Airlines
8.2
Very good
722 reviews

Boarding

8.3

Entertainment

8.0

Overall

8.2

Comfort

8.0

Crew

8.5

Food

7.8

Reviews

1 / 20
10.0
Excellent

Sopharith,Feb 2025

TPE - PNH

All are excellence, but we had to pay 150$ extra charge each person with our names in passports and tickets. It was just swiping between first names and last names. It might be our mistake when we bought the tickets, but I thought it was expensive just to swipe the names. Anyway, thanks a lot. All excellence
United Airlines
7.4
Good
8,608 reviews
China Airlines
8.2
Very good
722 reviews

Boarding

8.3

Entertainment

8.0

Overall

8.2

Comfort

8.0

Crew

8.5

Food

7.8

Reviews

1 / 20
10.0
Excellent

Sopharith,Feb 2025

TPE - PNH

All are excellence, but we had to pay 150$ extra charge each person with our names in passports and tickets. It was just swiping between first names and last names. It might be our mistake when we bought the tickets, but I thought it was expensive just to swipe the names. Anyway, thanks a lot. All excellence
American Airlines
7.2
Good
10,000 reviews
China Airlines
8.2
Very good
722 reviews

Boarding

8.3

Entertainment

8.0

Overall

8.2

Comfort

8.0

Crew

8.5

Food

7.8

Reviews

1 / 20
10.0
Excellent

Sopharith,Feb 2025

TPE - PNH

All are excellence, but we had to pay 150$ extra charge each person with our names in passports and tickets. It was just swiping between first names and last names. It might be our mistake when we bought the tickets, but I thought it was expensive just to swipe the names. Anyway, thanks a lot. All excellence
Iberia
7.0
Good
2,646 reviews
China Airlines
8.2
Very good
722 reviews

Boarding

8.3

Entertainment

8.0

Overall

8.2

Comfort

8.0

Crew

8.5

Food

7.8

Reviews

1 / 20
10.0
Excellent

Sopharith,Feb 2025

TPE - PNH

All are excellence, but we had to pay 150$ extra charge each person with our names in passports and tickets. It was just swiping between first names and last names. It might be our mistake when we bought the tickets, but I thought it was expensive just to swipe the names. Anyway, thanks a lot. All excellence

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.

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

    The cheapest airlines for a one-way flight from Ontario to Vienna are British Airways ($625), Iberia ($634), and United Airlines ($928).

  • 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 $737). Flying from Ontario to Vienna in June is currently the most expensive (average of $1,326). 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 Ontario?

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

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