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Cheap flights from Ontario to Vienna from $508

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Ontario to Vienna departing on 7/23. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Ontario to Vienna

Cheap round-trip flights

Enter your travel dates to find the best prices.
British Airways Logo
12:19 pm - 8:10 pm
ONT
-
VIE
22h 51m
2 stops
British Airways Logo
7:30 am - 4:22 pm
VIE
-
ONT
17h 52m
2 stops
$906British Airways
Sun, Apr 12 - Tue, Apr 28
United Airlines Logo
7:00 am - 8:15 am
ONT
-
VIE
16h 15m
1 stop
United Airlines Logo
10:30 am - 12:14 pm
VIE
-
ONT
34h 44m
2 stops
$938United Airlines
Thu, Apr 9 - Thu, Apr 23
United Airlines Logo
7:00 am - 8:15 am
ONT
-
VIE
16h 15m
1 stop
United Airlines Logo
10:30 am - 10:26 pm
VIE
-
ONT
20h 56m
1 stop
$954United Airlines
Thu, Apr 9 - Thu, Apr 23
British Airways Logo
4:52 pm - 10:30 pm
ONT
-
VIE
20h 38m
2 stops
British Airways Logo
7:25 am - 4:22 pm
VIE
-
ONT
17h 57m
2 stops
$956British Airways
Wed, Apr 15 - Sun, May 10
Multiple Airlines Logo
12:02 pm - 1:05 pm
ONT
-
VIE
40h 03m
2 stops
Multiple Airlines Logo
7:05 pm - 11:08 am
VIE
-
ONT
48h 03m
2 stops
$959Multiple Airlines
Thu, Mar 5 - Thu, Mar 12
United Airlines Logo
7:00 am - 8:15 am
ONT
-
VIE
16h 15m
1 stop
United Airlines Logo
10:30 am - 10:30 pm
VIE
-
ONT
21h 00m
1 stop
$1,004United Airlines
Thu, Apr 30 - Sun, May 10
British Airways Logo
10:59 am - 3:45 pm
ONT
-
VIE
19h 46m
2 stops
British Airways Logo
7:25 am - 4:22 pm
VIE
-
ONT
17h 57m
2 stops
$1,006British Airways
Thu, Apr 30 - Sun, May 10
United Airlines Logo
11:59 pm - 8:45 am
ONT
-
VIE
47h 46m
2 stops
United Airlines Logo
6:50 am - 10:18 pm
VIE
-
ONT
47h 28m
2 stops
$1,046United Airlines
Thu, Mar 5 - Mon, Mar 9
United Airlines Logo
5:00 am - 11:55 am
ONT
-
VIE
21h 55m
2 stops
United Airlines Logo
10:30 am - 10:28 pm
VIE
-
ONT
20h 58m
1 stop
$1,049United Airlines
Wed, May 13 - Tue, May 26
Multiple Airlines Logo
7:00 am - 8:20 am
ONT
-
VIE
16h 20m
2 stops
Multiple Airlines Logo
10:30 am - 8:36 pm
VIE
-
ONT
19h 06m
2 stops
$1,095Multiple Airlines
Fri, Apr 10 - Fri, Apr 24

United Airlines flights from Ontario to Vienna

Our best United Airlines deals on Ontario to Vienna flight tickets
United Airlines
Apr 9
ONT7:00 amOntario
16h 15m
1 stop
VIE8:15 amVienna Intl
Apr 23
VIE10:30 amVienna Intl
34h 44m
2 stops
ONT12:14 pmOntario
$938
United Airlines
Apr 9
ONT7:00 amOntario
16h 15m
1 stop
VIE8:15 amVienna Intl
Apr 23
VIE10:30 amVienna Intl
20h 56m
1 stop
ONT10:26 pmOntario
$954
United Airlines
Apr 30
ONT7:00 amOntario
16h 15m
1 stop
VIE8:15 amVienna Intl
May 10
VIE10:30 amVienna Intl
21h 00m
1 stop
ONT10:30 pmOntario
$1,004

British Airways flights from Ontario to Vienna

Our best British Airways deals on Ontario to Vienna flight tickets
British Airways
Apr 12
ONT12:19 pmOntario
22h 51m
2 stops
VIE8:10 pmVienna Intl
Apr 28
VIE7:30 amVienna Intl
17h 52m
2 stops
ONT4:22 pmOntario
$906
British Airways
Apr 15
ONT4:52 pmOntario
20h 38m
2 stops
VIE10:30 pmVienna Intl
May 10
VIE7:25 amVienna Intl
17h 57m
2 stops
ONT4:22 pmOntario
$956
British Airways
Apr 30
ONT10:59 amOntario
19h 46m
2 stops
VIE3:45 pmVienna Intl
May 10
VIE7:25 amVienna Intl
17h 57m
2 stops
ONT4:22 pmOntario
$1,006

momondo 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, momondo users made 832,500 searches. Data last updated February 4, 2026.
Use the filters below to find and compare flights from Ontario to Vienna that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

OntarioVienna

ONT - VIE

ONTVIE

Ontario

Sun 4/12

12:19 pm-8:10 pm

2 stops22h 51m

Vienna Intl

Tue 4/28

7:30 am-4:22 pm

2 stops17h 52m

$906

OntarioVienna

ONT - VIE

ONTVIE

Ontario

Thu 4/9

7:00 am-8:15 am

1 stop16h 15m

Vienna Intl

Thu 4/23

10:30 am-12:14 pm

2 stops34h 44m

$938

OntarioVienna

ONT - VIE

ONTVIE

Ontario

Thu 4/9

7:00 am-8:15 am

1 stop16h 15m

Vienna Intl

Thu 4/23

10:30 am-10:26 pm

1 stop20h 56m

$954

OntarioVienna

ONT - VIE

ONTVIE

Ontario

Wed 4/15

4:52 pm-10:30 pm

2 stops20h 38m

Vienna Intl

Sun 5/10

7:25 am-4:22 pm

2 stops17h 57m

$956

OntarioVienna

ONT - VIE

ONTVIE

Ontario

Thu 3/5

12:02 pm-1:05 pm

2 stops40h 03m

Vienna Intl

Thu 3/12

7:05 pm-11:08 am

2 stops48h 03m

$959

OntarioVienna

ONT - VIE

ONTVIE

Ontario

Thu 4/30

7:00 am-8:15 am

1 stop16h 15m

Vienna Intl

Sun 5/10

10:30 am-10:30 pm

1 stop21h 00m

$1,004

OntarioVienna

ONT - VIE

ONTVIE

Ontario

Thu 4/30

10:59 am-3:45 pm

2 stops19h 46m

Vienna Intl

Sun 5/10

7:25 am-4:22 pm

2 stops17h 57m

$1,006

OntarioVienna

ONT - VIE

ONTVIE

Ontario

Thu 3/5

11:59 pm-8:45 am

2 stops47h 46m

Vienna Intl

Mon 3/9

6:50 am-10:18 pm

2 stops47h 28m

$1,046

OntarioVienna

ONT - VIE

ONTVIE

Ontario

Wed 5/13

5:00 am-11:55 am

2 stops21h 55m

Vienna Intl

Tue 5/26

10:30 am-10:28 pm

1 stop20h 58m

$1,049

OntarioVienna

ONT - VIE

ONTVIE

Ontario

Fri 4/10

7:00 am-8:20 am

2 stops16h 20m

Vienna Intl

Fri 4/24

10:30 am-8:36 pm

2 stops19h 06m

$1,095

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Vienna from

How to get the cheapest flight ticket from Ontario to Vienna

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest day to depart on your flight to Vienna?

On average, the least expensive day to fly to Vienna from Ontario is on a Tuesday. momondo users have found tickets for Tuesday departures for as low as $1,047. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Sunday is the most expensive day to depart from Ontario because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $1,221.

When to book flights from Ontario to Vienna

Are you open to changing your travel dates? Check out the ideal times to fly from Ontario to Vienna according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Ontario to Vienna (ONT to VIE) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Ontario to Vienna

Fastest flight time

17h 36m

Direct flights

None
The fastest flight from Ontario to Vienna takes 17h 36m
There are no direct flights from Ontario to Vienna. There are no popular flight routes from Ontario to Vienna.
Search flight deals

  • How far is Ontario to Vienna Intl by plane?

    A flight from Ontario to Vienna Intl will travel around 6079.7 mi. By plane, this route typically takes 17h 36m.

  • When did momondo last update prices for flights from Ontario Airport to Vienna Intl Airport?

    Prices for flights from Ontario Airport to Vienna Intl Airport refresh daily.

  • How old do you have to be to fly from Ontario Airport to Vienna Intl Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ontario Airport to Vienna Intl Airport.

  • What documentation or ID do you need to fly to Vienna Intl Airport?

    The required travel and health documents for your Vienna Intl Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Vienna Intl Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Traveling to a place near Vienna?

Book flights to Vienna if you plan to visit one of these locations
Wiener Neustadt
Schwechat
Steyr
Semmering
Melk
Stegersbach
Krems an der Donau

Why use momondo?

Why should I use momondo to find a flight deal from Ontario to Vienna?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Vienna from Ontario.

Can I find flights from Ontario to Vienna with flexible booking policies on momondo?

Flights from Ontario to Vienna with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Ontario to Vienna?

momondo helps you find the best flight between Ontario and Vienna by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Ontario to Vienna right now. Can momondo alert me if prices change?

Price alerts on flights to Vienna from Ontario are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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