HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Austria

$579+ 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 1/27. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — VIE
Jan 22 — Jan 291
Thu 1/22
Thu 1/29
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Ontario to Austria with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

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 December 23, 2025.

This oojo deal was found by Cheapflights users on 12/22. 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 12/284:47 pmONT - VIE
2 stops18h 38mBritish Airways
Sun 1/117:00 pmVIE - ONT
2 stops31h 22mBritish Airways
Deal found 12/22$2,170
This oojo deal was found by Cheapflights users on 12/22. 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.
Wed 12/2412:48 pmONT - VIE
2 stops24h 47mBritish Airways
Mon 12/297:25 amVIE - ONT
2 stops23h 49mBritish Airways
Deal found 12/22$2,270
This oojo deal was found by Cheapflights users on 12/23. 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.
Tue 12/232:42 pmONT - VIE
2 stops22h 53mBritish Airways
Mon 12/296:55 pmVIE - ONT
2 stops35h 57mBritish Airways
Deal found 12/23$2,291
This Air Canada deal was found by Cheapflights users on 12/22. 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 12/245:05 amONT - VIE
2 stops18h 40mAir Canada
Tue 1/610:35 amVIE - ONT
2 stops19h 23mAir Canada
Deal found 12/22$2,297
This Air Canada deal was found by Cheapflights users on 12/22. 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 12/255:05 amONT - VIE
2 stops18h 30mAir Canada
Thu 1/110:35 amVIE - ONT
2 stops19h 32mAir Canada
Deal found 12/22$2,343
This United Airlines deal was found by Cheapflights users on 12/22. 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.
Tue 12/2311:59 pmONT - VIE
1 stop23h 06mUnited Airlines
Tue 12/307:00 amVIE - ONT
2 stops19h 43mUnited Airlines
Deal found 12/22$2,489
This oojo deal was found by Cheapflights users on 12/22. 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.
Tue 12/234:44 pmONT - VIE
2 stops32h 31mBritish Airways
Tue 12/3011:40 amVIE - ONT
2 stops39h 36mBritish Airways
Deal found 12/22$2,606
This oojo deal was found by Cheapflights users on 12/22. 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 12/294:47 pmONT - VIE
2 stops20h 48mBritish Airways
Fri 1/211:40 amVIE - ONT
2 stops39h 37mBritish Airways
Deal found 12/22$2,687
This British Airways deal was found by Cheapflights users on 12/22. 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.
Wed 12/246:10 amONT - VIE
2 stops25h 00mBritish Airways
Thu 1/17:25 amVIE - ONT
2 stops23h 27mBritish Airways
Deal found 12/22$2,853
This oojo deal was found by Cheapflights users on 12/22. 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 12/282:42 pmONT - VIE
2 stops18h 13mBritish Airways
Sun 1/411:40 amVIE - ONT
2 stops39h 36mBritish Airways
Deal found 12/22$2,860
This oojo deal was found by Cheapflights users on 12/22. 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.
Sat 12/2712:56 pmONT - VIE
2 stops41h 04mIberia
Sat 1/312:20 pmVIE - ONT
2 stops44h 26mIberia
Deal found 12/22$2,861
This oojo deal was found by Cheapflights users on 12/22. 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 12/267:10 amONT - VIE
2 stops30h 45mIberia
Sat 1/312:20 pmVIE - ONT
2 stops42h 54mIberia
Deal found 12/22$2,889

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 December 23, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$900
(United Airlines)

One-way from

$579
(CheapTickets)

Popular in

June

Cheapest in

November

Average price

$1,109
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. 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 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 December 23, 2025.
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

Mon 3/23

1:40 pm-6:05 pm

2 stops20h 25m

Vienna Intl

Thu 4/2

10:30 am-10:26 pm

1 stop20h 56m

$900

OntarioVienna

ONT - VIE

ONTVIE

Ontario

Tue 3/24

6:00 am-12:20 pm

2 stops22h 20m

Vienna Intl

Tue 3/31

10:30 am-10:26 pm

1 stop20h 56m

$900

OntarioVienna

ONT - VIE

ONTVIE

Ontario

Sun 3/22

6:00 am-6:05 pm

2 stops28h 05m

Vienna Intl

Tue 3/31

10:30 am-10:26 pm

1 stop20h 56m

$900

OntarioVienna

ONT - VIE

ONTVIE

Ontario

Mon 3/23

1:40 pm-6:05 pm

2 stops20h 25m

Vienna Intl

Wed 4/1

10:45 am-8:36 pm

2 stops18h 51m

$904

OntarioVienna

ONT - VIE

ONTVIE

Ontario

Sun 3/22

6:00 am-6:05 pm

2 stops28h 05m

Vienna Intl

Wed 4/1

10:45 am-8:36 pm

2 stops18h 51m

$904

OntarioVienna

ONT - VIE

ONTVIE

Ontario

Tue 4/7

1:33 pm-4:00 pm

2 stops17h 27m

Vienna Intl

Fri 4/17

11:10 am-11:40 pm

2 stops21h 30m

$905

OntarioVienna

ONT - VIE

ONTVIE

Ontario

Sat 3/21

6:37 pm-6:05 pm

2 stops39h 28m

Vienna Intl

Tue 3/31

10:30 am-10:26 pm

1 stop20h 56m

$906

OntarioVienna

ONT - VIE

ONTVIE

Ontario

Sat 3/21

6:37 pm-6:05 pm

2 stops39h 28m

Vienna Intl

Thu 4/2

10:30 am-10:26 pm

1 stop20h 56m

$906

OntarioVienna

ONT - VIE

ONTVIE

Ontario

Mon 3/23

1:40 pm-6:05 pm

2 stops20h 25m

Vienna Intl

Tue 3/31

7:00 am-6:02 pm

2 stops20h 02m

$907

OntarioVienna

ONT - VIE

ONTVIE

Ontario

Tue 3/24

12:50 pm-11:30 am

2 stops38h 40m

Vienna Intl

Thu 4/2

7:00 am-9:04 pm

2 stops23h 04m

$918

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/22

Showing 1-10 of 33 results
1
2
3
4

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 $408). 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 United Airlines fly from Ontario to Austria in about 20h 25m. The time it takes to get you to your destination can typically vary by up to . Ontario and Austria are separated by a distance of 6089 mi.

  • 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 $408). 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

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Ontario to Austria

See prices for flight routes from nearby airports that may be better suited for you.
Los Angeles to Heathrow flights
Los Angeles to Charles de Gaulle flights
San Francisco to Heathrow flights
San Francisco to Charles de Gaulle flights
Los Angeles to Leonardo da Vinci/Fiumicino flights
San Francisco to Leonardo da Vinci/Fiumicino flights
Los Angeles to Istanbul flights
Los Angeles to Orly flights
San Francisco to Istanbul flights
Los Angeles to Madrid flights
Los Angeles to Gatwick flights
San Francisco to Gatwick flights
San Francisco to Barcelona-El Prat flights
Los Angeles to Barcelona-El Prat flights
Los Angeles to London City flights
Los Angeles to Frankfurt flights
Los Angeles to Amsterdam flights
San Francisco to Lisbon flights
San Francisco to London City flights
San Diego to Heathrow flights
Los Angeles to Dublin flights
Los Angeles to Lisbon flights
San Francisco to Amsterdam flights
Los Angeles to Zurich flights
Ontario to Charles de Gaulle flights
San Francisco to Orly flights
Los Angeles to Athens flights
Los Angeles to Malpensa flights
San Francisco to Dublin flights
Los Angeles to Stansted flights
San Francisco to Zurich flights
San Francisco to Madrid flights
San Francisco to Frankfurt flights
San Francisco to Stansted flights
Las Vegas to Heathrow flights
San Francisco to Munich flights
Los Angeles to Sabiha Gokcen flights
San Francisco to Malpensa flights
San Francisco to Athens flights
Santa Ana to Charles de Gaulle flights
Los Angeles to Copenhagen flights
Los Angeles to Linate flights
Ontario to Leonardo da Vinci/Fiumicino flights
Ontario to Heathrow flights
San Francisco to Linate flights
Santa Ana to Leonardo da Vinci/Fiumicino flights
San Jose to Charles de Gaulle flights
San Francisco to Sabiha Gokcen flights
San Francisco to Copenhagen flights
Ontario to Palma de Mallorca flights

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.