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$679+ Cheap flights from Austria to Ontario (ONT)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 6/4. Fares are subject to change and may not be available on all flights or dates of travel.
VIE — ONT
Apr 5 — Apr 121
Sat 4/5
Sat 4/12
1 adult, Economy
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Cheap flight deals from Austria to Ontario

Keep the following information in mind while searching for Austria to Ontario flight deals. Data was last updated March 31, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$679
(United Airlines)

Popular in

July

Cheapest in

April

Average price

$732
Provider with most accurate pricing for Vienna Intl-Los Angeles flight deals.
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Provider most trusted by Cheapflights users for Vienna Intl-Los Angeles flights.
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From Austria to Ontario
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Highest demand for flights based on searches. 11% potential increase in price ($102 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($12 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 Austria to Ontario

Cheapest flights from Austria to Ontario
Explore the most affordable flight options available from Austria to Ontario. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 31, 2025.

This United Airlines deal was found by Cheapflights users on 3/30. 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 6/410:30 amVIE - ONT
2 stops44h 56mUnited Airlines
Mon 6/237:00 amONT - VIE
2 stops20h 20mUnited Airlines
Deal found 3/30$679
This British Airways deal was found by Cheapflights users on 3/29. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/411:35 amVIE - ONT
2 stops21h 01mBritish Airways
Sun 9/213:00 pmONT - VIE
2 stops18h 30mBritish Airways
Deal found 3/29$701
This Delta deal was found by Cheapflights users on 3/31. 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 4/162:20 pmVIE - ONT
2 stops18h 21mDelta
Sun 4/205:15 pmONT - VIE
2 stops16h 55mDelta
Deal found 3/31$739
This American Airlines deal was found by Cheapflights users on 3/30. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/237:45 amVIE - ONT
2 stops19h 00mAmerican Airlines
Thu 10/303:00 pmONT - VIE
2 stops19h 35mAmerican Airlines
Deal found 3/30$756
This Finnair deal was found by Cheapflights users on 3/30. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/37:15 pmVIE - ONT
2 stops37h 28mMultiple Airlines
Mon 6/2312:59 amONT - VIE
2 stops32h 31mMultiple Airlines
Deal found 3/30$762
This Iberia deal was found by Cheapflights users on 3/31. 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.
Wed 6/257:00 amVIE - ONT
2 stops21h 01mIberia
Mon 7/212:34 pmONT - VIE
2 stops23h 21mIberia
Deal found 3/31$807
This Air Canada deal was found by Cheapflights users on 3/30. 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.
Fri 4/410:30 amVIE - ONT
2 stops19h 12mAir Canada
Thu 4/105:00 amONT - VIE
2 stops18h 35mAir Canada
Deal found 3/30$906
This Justfly.com deal was found by Cheapflights users on 3/30. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/1511:25 amVIE - ONT
1 stop39h 35mChina Airlines
Fri 4/1812:10 amONT - VIE
1 stop45h 50mChina Airlines
Deal found 3/30$8,226

Cheapflights Fare Finder

Customize your flight search to find flights from Austria to Ontario 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 31, 2025.
Use the filters below to find and compare flights from Austria to Ontario that are best for you.

Fly from

Austria

Fly to

Ontario

Route

Depart

Return

Price

ViennaOntario

VIE - ONT

VIEONT

Vienna Intl

Wed 6/4

10:30 am-10:26 pm

2 stops44h 56m

Ontario

Mon 6/23

7:00 am-12:20 pm

2 stops20h 20m

$679

ViennaOntario

VIE - ONT

VIEONT

Vienna Intl

Thu 9/4

11:35 am-11:36 pm

2 stops21h 01m

Ontario

Sun 9/21

3:00 pm-6:30 pm

2 stops18h 30m

$701

ViennaOntario

VIE - ONT

VIEONT

Vienna Intl

Wed 4/16

2:20 pm-11:41 pm

2 stops18h 21m

Ontario

Sun 4/20

5:15 pm-7:10 pm

2 stops16h 55m

$739

ViennaOntario

VIE - ONT

VIEONT

Vienna Intl

Tue 6/3

7:15 pm-11:43 pm

2 stops37h 28m

Ontario

Mon 6/23

12:59 am-6:30 pm

2 stops32h 31m

$762

ViennaOntario

VIE - ONT

VIEONT

Vienna Intl

Wed 6/25

7:00 am-7:01 pm

2 stops21h 01m

Ontario

Mon 7/21

2:34 pm-10:55 pm

2 stops23h 21m

$807

ViennaOntario

VIE - ONT

VIEONT

Vienna Intl

Tue 6/3

7:35 am-9:58 pm

2 stops47h 23m

Ontario

Wed 6/25

12:55 pm-10:35 pm

2 stops24h 40m

$978

ViennaOntario

VIE - ONT

VIEONT

Vienna Intl

Tue 7/22

10:30 am-8:54 pm

2 stops19h 24m

Ontario

Wed 8/6

5:05 am-8:20 am

2 stops18h 15m

$2,322

ViennaOntario

VIE - ONT

VIEONT

Vienna Intl

Tue 4/15

11:25 am-6:00 pm

1 stop39h 35m

Ontario

Fri 4/18

12:10 am-7:00 am

1 stop45h 50m

$8,226

ViennaOntario

VIE - ONT

VIEONT

Vienna Intl

Tue 4/29

7:35 am-6:29 pm

2 stops19h 54m

$710

ViennaOntario

VIE - ONT

VIEONT

Vienna Intl

Wed 4/30

7:00 am-10:10 pm

2 stops24h 10m

$718

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/30

Showing 1-10 of 13 results
1
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Best time to book a flight from Austria to Ontario

Have a flexible travel schedule? Discover the best time to fly to Ontario from Austria 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 Austria to Ontario

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

Currently, August is the cheapest month in which you can book a flight from Austria to Ontario (average of $246). Flying from Austria to Ontario in March is currently the most expensive (average of $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 Ontario by month

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

In terms of precipitation, rainfall in Ontario ranges from 0.1 - 3.4 inches per month. February is typically the wettest month, when rainfall can reach 3.4 in. June is typically the driest time to visit Ontario when rainfall is around 0.1 in.

Temperature in Ontario by month

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

If weather is an important factor for your trip to Ontario, use this chart to help with planning. For those seeking warmer temperatures, August is the ideal time of year to visit, when temperatures reach an average of 78.8 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 53.6 F).

Reviews of airlines servicing Ontario

Get insights into the airlines that provide service to Ontario. 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 Ontario. Reviews last updated March 31, 2025.
Get a feel of what it's like to fly with China Airlines, Delta and United Airlines from Austria to Ontario by reading reviews from past customers. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
China Airlines
8.2
Very good
723 reviews

Food

7.8

Crew

8.5

Boarding

8.3

Entertainment

8.0

Overall

8.2

Comfort

8.0

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
723 reviews
China Airlines
8.2
Very good
723 reviews

Food

7.8

Crew

8.5

Boarding

8.3

Entertainment

8.0

Overall

8.2

Comfort

8.0

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
7,899 reviews
China Airlines
8.2
Very good
723 reviews

Food

7.8

Crew

8.5

Boarding

8.3

Entertainment

8.0

Overall

8.2

Comfort

8.0

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
8,614 reviews
China Airlines
8.2
Very good
723 reviews

Food

7.8

Crew

8.5

Boarding

8.3

Entertainment

8.0

Overall

8.2

Comfort

8.0

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
723 reviews

Food

7.8

Crew

8.5

Boarding

8.3

Entertainment

8.0

Overall

8.2

Comfort

8.0

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
Air Canada
7.0
Good
9,012 reviews
China Airlines
8.2
Very good
723 reviews

Food

7.8

Crew

8.5

Boarding

8.3

Entertainment

8.0

Overall

8.2

Comfort

8.0

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 Austria to Ontario. 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 into for flights to Ontario from Austria?

    Ontario (ONT), located 3.1 mi from the city center, is the airport you fly into when you book flights from Austria to Ontario.

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

    The cheapest airlines for a one-way flight from Austria to Ontario are British Airways ($710), Iberia ($718), and United Airlines ($1,275).

  • What are the most popular routes from Austria to Ontario?

    The most popular flight routes from Austria to Ontario are Vienna Intl - Ontario, Graz Thalerhof - Ontario and Linz Hoersching - Ontario.

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

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

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

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

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

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

    Currently, August is the cheapest month in which you can book a flight from Austria to Ontario (average of $246). Flying from Austria to Ontario in March is currently the most expensive (average of $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

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