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Cheap flights from Ontario to Vienna from $337

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 8/18. 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
1 adult, Economy, 0 bags

Find the cheapest flights from Ontario to Vienna

Cheap round-trip flights

Enter your travel dates to find the best prices.
British Airways Logo
2:59 pm - 5:45 pm
ONT
-
VIE
17h 46m
2 stops
British Airways Logo
11:30 am - 10:23 pm
VIE
-
ONT
19h 53m
2 stops
$846British Airways
Tue, Nov 17 - Tue, Dec 1
United Airlines Logo
1:56 pm - 1:45 pm
ONT
-
VIE
38h 49m
2 stops
United Airlines Logo
10:30 am - 11:04 pm
VIE
-
ONT
45h 34m
2 stops
$871United Airlines
Sat, Aug 22 - Wed, Sep 16
United Airlines Logo
7:00 am - 8:15 am
ONT
-
VIE
16h 15m
1 stop
United Airlines Logo
10:30 am - 12:12 pm
VIE
-
ONT
34h 42m
2 stops
$877United Airlines
Sun, Sep 6 - Fri, Sep 18
United Airlines Logo
5:00 am - 11:55 am
ONT
-
VIE
21h 55m
2 stops
United Airlines Logo
7:00 am - 8:01 pm
VIE
-
ONT
22h 01m
2 stops
$880United Airlines
Wed, Aug 12 - Wed, Aug 26
United Airlines Logo
1:56 pm - 8:20 am
ONT
-
VIE
33h 24m
2 stops
United Airlines Logo
10:30 am - 12:12 pm
VIE
-
ONT
34h 42m
2 stops
$885United Airlines
Tue, Sep 8 - Tue, Sep 22
British Airways Logo
2:59 pm - 5:45 pm
ONT
-
VIE
17h 46m
2 stops
British Airways Logo
11:30 am - 10:23 pm
VIE
-
ONT
19h 53m
2 stops
$890British Airways
Tue, Nov 17 - Tue, Dec 1
United Airlines Logo
7:00 am - 8:15 am
ONT
-
VIE
16h 15m
1 stop
United Airlines Logo
10:30 am - 10:49 pm
VIE
-
ONT
21h 19m
1 stop
$892United Airlines
Tue, Sep 22 - Thu, Oct 22
United Airlines Logo
7:00 am - 8:15 am
ONT
-
VIE
16h 15m
1 stop
United Airlines Logo
10:30 am - 10:49 pm
VIE
-
ONT
21h 19m
2 stops
$901United Airlines
Tue, Sep 22 - Thu, Oct 22
Multiple Airlines Logo
6:08 am - 8:20 am
ONT
-
VIE
17h 12m
2 stops
Multiple Airlines Logo
10:30 am - 8:58 pm
VIE
-
ONT
19h 28m
2 stops
$908Multiple Airlines
Sun, Sep 6 - Fri, Sep 25
United Airlines Logo
7:00 am - 8:15 am
ONT
-
VIE
16h 15m
1 stop
United Airlines Logo
10:30 am - 12:18 pm
VIE
-
ONT
34h 48m
2 stops
$927United Airlines
Mon, Aug 24 - Sat, Sep 26

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United Airlines flights from Ontario to Vienna

Our best United Airlines deals on Ontario to Vienna flight tickets
United Airlines
Aug 22
ONT1:56 pmOntario
38h 49m
2 stops
VIE1:45 pmVienna Intl
Sep 16
VIE10:30 amVienna Intl
45h 34m
2 stops
ONT11:04 pmOntario
$871
United Airlines
Sep 6
ONT7:00 amOntario
16h 15m
1 stop
VIE8:15 amVienna Intl
Sep 18
VIE10:30 amVienna Intl
34h 42m
2 stops
ONT12:12 pmOntario
$877
United Airlines
Aug 12
ONT5:00 amOntario
21h 55m
2 stops
VIE11:55 amVienna Intl
Aug 26
VIE7:00 amVienna Intl
22h 01m
2 stops
ONT8:01 pmOntario
$880

Turkish Airlines flights from Ontario to Vienna

Our best Turkish Airlines deals on Ontario to Vienna flight tickets
Turkish Airlines
Sep 21
ONT9:10 pmOntario
36h 05m
2 stops
VIE6:15 pmVienna Intl
Oct 5
VIE7:50 pmVienna Intl
33h 23m
2 stops
ONT8:13 pmOntario
$1,084
Turkish Airlines
Sep 19
ONT9:10 pmOntario
36h 05m
2 stops
VIE6:15 pmVienna Intl
Oct 4
VIE4:35 pmVienna Intl
60h 38m
2 stops
ONT8:13 pmOntario
$1,099
Turkish Airlines
Jul 3
ONT11:54 pmOntario
33h 21m
2 stops
VIE6:15 pmVienna Intl
Jul 21
VIE4:35 pmVienna Intl
63h 09m
2 stops
ONT10:44 pmOntario
$1,954

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 June 20, 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

Cheapest round-trip

OntarioVienna

ONT - VIE

ONTVIE

Ontario

Tue 11/17

2:59 pm-5:45 pm

2 stops17h 46m

Vienna Intl

Tue 12/1

11:30 am-10:23 pm

2 stops19h 53m

$846

OntarioVienna

ONT - VIE

ONTVIE

Ontario

Sat 8/22

1:56 pm-1:45 pm

2 stops38h 49m

Vienna Intl

Wed 9/16

10:30 am-11:04 pm

2 stops45h 34m

$871

OntarioVienna

ONT - VIE

ONTVIE

Ontario

Sun 9/6

7:00 am-8:15 am

1 stop16h 15m

Vienna Intl

Fri 9/18

10:30 am-12:12 pm

2 stops34h 42m

$877

OntarioVienna

ONT - VIE

ONTVIE

Ontario

Wed 8/12

5:00 am-11:55 am

2 stops21h 55m

Vienna Intl

Wed 8/26

7:00 am-8:01 pm

2 stops22h 01m

$880

OntarioVienna

ONT - VIE

ONTVIE

Ontario

Tue 9/8

1:56 pm-8:20 am

2 stops33h 24m

Vienna Intl

Tue 9/22

10:30 am-12:12 pm

2 stops34h 42m

$885

OntarioVienna

ONT - VIE

ONTVIE

Ontario

Tue 11/17

2:59 pm-5:45 pm

2 stops17h 46m

Vienna Intl

Tue 12/1

11:30 am-10:23 pm

2 stops19h 53m

$890

OntarioVienna

ONT - VIE

ONTVIE

Ontario

Tue 9/22

7:00 am-8:15 am

1 stop16h 15m

Vienna Intl

Thu 10/22

10:30 am-10:49 pm

1 stop21h 19m

$892

OntarioVienna

ONT - VIE

ONTVIE

Ontario

Tue 9/22

7:00 am-8:15 am

1 stop16h 15m

Vienna Intl

Thu 10/22

10:30 am-10:49 pm

2 stops21h 19m

$901
Quickest round-trip

OntarioVienna

ONT - VIE

ONTVIE

Ontario

Sun 9/6

6:08 am-8:20 am

2 stops17h 12m

Vienna Intl

Fri 9/25

10:30 am-8:58 pm

2 stops19h 28m

$908

OntarioVienna

ONT - VIE

ONTVIE

Ontario

Mon 8/24

7:00 am-8:15 am

1 stop16h 15m

Vienna Intl

Sat 9/26

10:30 am-12:18 pm

2 stops34h 48m

$927

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 $980. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Friday 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 $1,156.

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

16h 15m

Direct flights

None
The fastest flight from Ontario to Vienna takes 16h 15m
There are no direct flights from Ontario to Vienna. There are no popular flight routes from Ontario to Vienna.
Search flight deals

Frequently asked questions about flying from Ontario to Vienna

  • 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 16h 15m.

  • 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
Schwechat
Wiener Neustadt
Semmering
Steyr
Stegersbach
Krems an der Donau
Rust
Melk

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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