HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Ontario

$407+ Cheap flights from Austria to Ontario (ONT)

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 3/6. Fares are subject to change and may not be available on all flights or dates of travel.
VIE — ONT
mar 15 — mar 221
dom 3/15
dom 3/22
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Austria to Ontario 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 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 fevereiro 13, 2026.

This United Airlines deal was found by Cheapflights users on 2/12. 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.
sex 9/47:00 am
VIE
-
ONT
2 stops24h 26m
United Airlines
seg 9/76:30 pm
ONT
-
VIE
2 stops28h 40m
United Airlines
Deal found 2/12$705
This United Airlines deal was found by Cheapflights users on 2/10. 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.
qui 2/197:00 am
VIE
-
ONT
2 stops38h 38m
United Airlines
dom 4/126:05 am
ONT
-
VIE
2 stops41h 05m
United Airlines
Deal found 2/10$706
This United Airlines deal was found by Cheapflights users on 2/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sex 9/187:00 am
VIE
-
ONT
2 stops24h 26m
United Airlines
ter 10/66:00 am
ONT
-
VIE
2 stops17h 10m
United Airlines
Deal found 2/11$707
This United Airlines deal was found by Cheapflights users on 2/9. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
qua 4/2210:45 am
VIE
-
ONT
2 stops20h 05m
United Airlines
qui 4/307:00 am
ONT
-
VIE
1 stop16h 15m
United Airlines
Deal found 2/9$710
This United Airlines deal was found by Cheapflights users on 2/10. 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.
qua 7/1510:50 am
VIE
-
ONT
2 stops20h 38m
United Airlines
ter 7/287:00 am
ONT
-
VIE
1 stop16h 15m
United Airlines
Deal found 2/10$713
This United Airlines deal was found by Cheapflights users on 2/12. 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.
sex 5/87:00 am
VIE
-
ONT
2 stops24h 30m
United Airlines
ter 5/267:00 am
ONT
-
VIE
2 stops40h 20m
United Airlines
Deal found 2/12$714
This United Airlines deal was found by Cheapflights users on 2/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
qui 9/1710:30 am
VIE
-
ONT
1 stop20h 56m
United Airlines
ter 10/66:00 am
ONT
-
VIE
2 stops17h 10m
United Airlines
Deal found 2/11$715
This United Airlines deal was found by Cheapflights users on 2/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
qua 9/166:45 am
VIE
-
ONT
2 stops25h 21m
United Airlines
dom 10/46:00 am
ONT
-
VIE
2 stops22h 45m
United Airlines
Deal found 2/11$716
This United Airlines deal was found by Cheapflights users on 2/9. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
qui 5/2810:30 am
VIE
-
ONT
1 stop20h 58m
United Airlines
qui 6/41:00 pm
ONT
-
VIE
2 stops34h 20m
United Airlines
Deal found 2/9$718
This United Airlines deal was found by Cheapflights users on 2/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ter 4/710:30 am
VIE
-
ONT
1 stop20h 56m
United Airlines
ter 4/141:34 pm
ONT
-
VIE
2 stops20h 56m
United Airlines
Deal found 2/11$720
This United Airlines deal was found by Cheapflights users on 2/12. 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.
ter 3/1710:35 am
VIE
-
ONT
2 stops20h 22m
United Airlines
ter 3/317:00 am
ONT
-
VIE
1 stop16h 15m
United Airlines
Deal found 2/12$722
This United Airlines deal was found by Cheapflights users on 2/11. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
qua 8/1210:30 am
VIE
-
ONT
2 stops20h 56m
United Airlines
dom 8/236:00 am
ONT
-
VIE
2 stops41h 15m
United Airlines
Deal found 2/11$723

Find flight deals from Austria to Ontario

Keep the following information in mind while searching for Austria to Ontario flight deals. Data was last updated fevereiro 13, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$706
(United Airlines)

One-way from

$407
(Kiwi.com)

Popular in

July

Cheapest in

February

Average price

$657
Provider with most accurate pricing for Vienna Intl-Los Angeles flight deals.
Search Deals
Provider most trusted by Cheapflights users for Vienna Intl-Los Angeles flights.
Search Deals
From Austria to Ontario
Search Deals
One-way flight from Austria to Ontario
Search Deals
Highest demand for flights based on searches. 10% potential increase in price ($92 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($12 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

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 fevereiro 13, 2026.
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

sex 5/8

7:00 am-10:30 pm

2 stops24h 30m

Ontario

qua 5/27

7:00 am-7:10 am

2 stops39h 10m

$706

ViennaOntario

VIE - ONT

VIEONT

Vienna Intl

dom 5/10

7:00 am-5:52 pm

2 stops19h 52m

Ontario

qua 5/27

7:00 am-7:10 am

2 stops39h 10m

$706

ViennaOntario

VIE - ONT

VIEONT

Vienna Intl

seg 5/11

7:00 am-5:52 pm

2 stops19h 52m

Ontario

qua 5/27

7:00 am-7:10 am

2 stops39h 10m

$706

ViennaOntario

VIE - ONT

VIEONT

Vienna Intl

qua 4/22

10:45 am-9:50 pm

2 stops20h 05m

Ontario

qui 4/30

7:00 am-8:15 am

1 stop16h 15m

$710

ViennaOntario

VIE - ONT

VIEONT

Vienna Intl

ter 4/28

10:30 am-10:26 pm

1 stop20h 56m

Ontario

ter 5/5

7:00 am-8:15 am

1 stop16h 15m

$713

ViennaOntario

VIE - ONT

VIEONT

Vienna Intl

qua 7/15

10:50 am-10:28 pm

2 stops20h 38m

Ontario

dom 8/2

7:00 am-8:15 am

1 stop16h 15m

$713

ViennaOntario

VIE - ONT

VIEONT

Vienna Intl

qua 7/15

10:50 am-10:28 pm

2 stops20h 38m

Ontario

ter 7/28

7:00 am-8:15 am

1 stop16h 15m

$713

ViennaOntario

VIE - ONT

VIEONT

Vienna Intl

sex 5/1

10:30 am-10:30 pm

1 stop21h 00m

Ontario

sáb 5/9

10:43 am-8:15 am

2 stops36h 32m

$714

ViennaOntario

VIE - ONT

VIEONT

Vienna Intl

ter 5/12

7:00 am-5:52 pm

2 stops19h 52m

Ontario

ter 5/26

7:00 am-8:20 am

2 stops40h 20m

$714

ViennaOntario

VIE - ONT

VIEONT

Vienna Intl

qua 7/15

10:50 am-10:28 pm

2 stops20h 38m

Ontario

ter 8/4

7:00 am-8:15 am

1 stop16h 15m

$714

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/10

Showing 1-10 of 40 results
1
2
3
4

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, April is the cheapest month in which you can book a flight from Austria to Ontario (average of $346). Flying from Austria to Ontario in July is currently the most expensive (average of $662). 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 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.

  • How long is the flight from Austria to Ontario?

    For as low as $706, United Airlines can have you in Ontario from Austria in 24h 30m. Austria and Ontario are separated by a distance of 6089 mi.

  • 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, April is the cheapest month in which you can book a flight from Austria to Ontario (average of $346). Flying from Austria to Ontario in July is currently the most expensive (average of $662). 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 Austria to Ontario

See prices for flight routes from nearby airports that may be better suited for you.
Charles de Gaulle to Los Angeles flights
Heathrow to Los Angeles flights
Frankfurt to San Francisco flights
Frankfurt to Los Angeles flights
Charles de Gaulle to San Francisco flights
Orly to Los Angeles flights
Heathrow to San Francisco flights
Heathrow to Las Vegas flights
Gatwick to Los Angeles flights
Frederic Chopin to Los Angeles flights
Munich to Los Angeles flights
Frankfurt to Las Vegas flights
Beauvais-Tille to Los Angeles flights
Munich to San Francisco flights
Amsterdam to Los Angeles flights
Stansted to Los Angeles flights
Frankfurt to Ontario flights
Vienna to Los Angeles flights
Frankfurt to Santa Ana flights
London City to Los Angeles flights
Charles de Gaulle to Las Vegas flights
Zurich to Los Angeles flights
Frankfurt to San Jose flights
Zurich to San Francisco flights
Madrid to Los Angeles flights
Amsterdam to Las Vegas flights
Duesseldorf Intl to Los Angeles flights
Malpensa to Los Angeles flights
Heathrow to Ontario flights
Gatwick to San Francisco flights
Luton to Los Angeles flights
Vienna to San Francisco flights
Barcelona-El Prat to San Francisco flights
Charles de Gaulle to Santa Ana flights
Bruxelles-National to Los Angeles flights
Gatwick to Las Vegas flights
Linate to Los Angeles flights
Leonardo da Vinci/Fiumicino to Los Angeles flights
Barcelona-El Prat to Los Angeles flights
Heathrow to San Diego flights
Dublin to San Francisco flights
London City to San Francisco flights
Berlin to Los Angeles flights
Frankfurt to Oakland flights
Charles de Gaulle to Burbank flights
Orly to Las Vegas flights
Stansted to San Francisco flights
Istanbul to Los Angeles 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.