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Cheap flights from Ontario to Vienna from $532

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 10/8. 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.
United Airlines Logo
1:00 pm - 8:45 amONT  Ontario-VIE Vienna Intl
58h 45m2 stops Denver Intl Toronto Pearson Intl
United Airlines Logo
6:50 am - 6:44 pmVIE  Vienna Intl-ONT Ontario
44h 54m2 stops London Heathrow Chicago O'Hare Intl
$806United Airlines
Sun, Jan 10 - Thu, Jan 14
Air Canada Logo
5:00 am - 8:35 amONT  Ontario-VIE Vienna Intl
18h 35m2 stops Denver Intl Montreal Pierre Elliott Trudeau Intl
Air Canada Logo
10:30 am - 12:18 pmVIE  Vienna Intl-ONT Ontario
34h 48m2 stops Toronto Pearson Intl San Francisco
$880Air Canada
Wed, Oct 14 - Wed, Oct 21
Multiple Airlines Logo
5:00 am - 8:20 amONT  Ontario-VIE Vienna Intl
18h 20m2 stops Denver Intl Toronto Pearson Intl
Multiple Airlines Logo
7:00 am - 9:59 pmVIE  Vienna Intl-ONT Ontario
23h 59m2 stops Frankfurt am Main Houston George Bush Intcntl
$880Multiple Airlines
Tue, Oct 6 - Thu, Oct 15
United Airlines Logo
8:03 am - 7:50 amONT  Ontario-VIE Vienna Intl
38h 47m3 stops San Francisco Houston George Bush Intcntl Newark
United Airlines Logo
10:30 am - 10:51 pmVIE  Vienna Intl-ONT Ontario
21h 21m2 stops Chicago O'Hare Intl San Francisco
$897United Airlines
Tue, Oct 6 - Thu, Oct 15
United Airlines Logo
7:00 am - 8:15 amONT  Ontario-VIE Vienna Intl
16h 15m1 stop Chicago O'Hare Intl
United Airlines Logo
2:55 pm - 10:51 pmVIE  Vienna Intl-ONT Ontario
16h 56m2 stops Frankfurt am Main San Francisco
$900United Airlines
Tue, Sep 29 - Wed, Oct 7
Multiple Airlines Logo
10:25 am - 6:20 pmONT  Ontario-VIE Vienna Intl
22h 55m2 stops Dallas/Fort Worth Helsinki-Vantaa
Multiple Airlines Logo
7:15 pm - 9:11 pmVIE  Vienna Intl-ONT Ontario
33h 56m2 stops Helsinki-Vantaa Dallas/Fort Worth
$908Multiple Airlines
Wed, Oct 14 - Mon, Oct 26
Austrian Airlines Logo
7:00 am - 8:15 amONT  Ontario-VIE Vienna Intl
16h 15m1 stop Chicago O'Hare Intl
Austrian Airlines Logo
10:50 am - 10:49 pmVIE  Vienna Intl-ONT Ontario
20h 59m2 stops Washington, D.C. Dulles Intl Chicago O'Hare Intl
$943Austrian Airlines
Tue, Oct 6 - Thu, Oct 15
Delta Logo
5:05 pm - 7:10 pmONT  Ontario-VIE Vienna Intl
17h 05m2 stops Salt Lake City Amsterdam Schiphol
Delta Logo
7:00 am - 5:19 pmVIE  Vienna Intl-ONT Ontario
19h 19m2 stops Amsterdam Schiphol Seattle/Tacoma Intl
$962Delta
Sun, Sep 6 - Tue, Sep 22
United Airlines Logo
7:13 pm - 8:10 amONT  Ontario-VIE Vienna Intl
27h 57m2 stops San Francisco Washington, D.C. Dulles Intl
United Airlines Logo
10:50 am - 10:35 pmVIE  Vienna Intl-ONT Ontario
20h 45m2 stops Washington, D.C. Dulles Intl Chicago O'Hare Intl
$966United Airlines
Sun, Aug 30 - Sun, Sep 6
United Airlines Logo
7:00 am - 8:05 amONT  Ontario-VIE Vienna Intl
16h 05m1 stop Chicago O'Hare Intl
United Airlines Logo
10:55 am - 6:47 pmVIE  Vienna Intl-ONT Ontario
16h 52m1 stop Chicago O'Hare Intl
$987United Airlines
Wed, Nov 4 - Wed, Nov 18

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Turkish Airlines flights from Ontario to Vienna

Our best Turkish Airlines deals on Ontario to Vienna flight tickets
Turkish Airlines
Sep 12
ONT10:39 pmOntario
25h 31m
2 stops
VIE9:10 amVienna Intl
Sep 29
VIE4:35 pmVienna Intl
61h 22m
2 stops
ONT8:57 pmOntario
$1,062
Turkish Airlines
Sep 13
ONT10:39 pmOntario
34h 36m
2 stops
VIE6:15 pmVienna Intl
Sep 29
VIE7:50 pmVienna Intl
58h 07m
2 stops
ONT8:57 pmOntario
$1,071
Turkish Airlines
Aug 25
ONT11:59 pmOntario
33h 16m
2 stops
VIE6:15 pmVienna Intl
Sep 22
VIE1:50 pmVienna Intl
40h 07m
2 stops
ONT8:57 pmOntario
$1,076

Austrian Airlines flights from Ontario to Vienna

Our best Austrian Airlines deals on Ontario to Vienna flight tickets
Austrian Airlines
Oct 6
ONT7:00 amOntario
16h 15m
1 stop
VIE8:15 amVienna Intl
Oct 15
VIE10:50 amVienna Intl
20h 59m
2 stops
ONT10:49 pmOntario
$943
Austrian Airlines
Oct 8
ONT7:00 amOntario
16h 15m
1 stop
VIE8:15 amVienna Intl
Oct 17
VIE10:30 amVienna Intl
21h 19m
1 stop
ONT10:49 pmOntario
$1,078

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 August 6, 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 Ontario - VIE Vienna Intl

ONTVIE

Ontario

Sun 1/10

1:00 pm-8:45 am

2 stops58h 45m

Vienna Intl

Thu 1/14

6:50 am-6:44 pm

2 stops44h 54m

$806

OntarioVienna

ONT Ontario - VIE Vienna Intl

ONTVIE

Ontario

Wed 10/14

5:00 am-8:35 am

2 stops18h 35m

Vienna Intl

Wed 10/21

10:30 am-12:18 pm

2 stops34h 48m

$880

OntarioVienna

ONT Ontario - VIE Vienna Intl

ONTVIE

Ontario

Tue 10/6

5:00 am-8:20 am

2 stops18h 20m

Vienna Intl

Thu 10/15

7:00 am-9:59 pm

2 stops23h 59m

$880

OntarioVienna

ONT Ontario - VIE Vienna Intl

ONTVIE

Ontario

Tue 10/6

8:03 am-7:50 am

3 stops38h 47m

Vienna Intl

Thu 10/15

10:30 am-10:51 pm

2 stops21h 21m

$897

OntarioVienna

ONT Ontario - VIE Vienna Intl

ONTVIE

Ontario

Tue 9/29

7:00 am-8:15 am

1 stop16h 15m

Vienna Intl

Wed 10/7

2:55 pm-10:51 pm

2 stops16h 56m

$900

OntarioVienna

ONT Ontario - VIE Vienna Intl

ONTVIE

Ontario

Wed 10/14

10:25 am-6:20 pm

2 stops22h 55m

Vienna Intl

Mon 10/26

7:15 pm-9:11 pm

2 stops33h 56m

$908

OntarioVienna

ONT Ontario - VIE Vienna Intl

ONTVIE

Ontario

Tue 10/6

7:00 am-8:15 am

1 stop16h 15m

Vienna Intl

Thu 10/15

10:50 am-10:49 pm

2 stops20h 59m

$943

OntarioVienna

ONT Ontario - VIE Vienna Intl

ONTVIE

Ontario

Sun 9/6

5:05 pm-7:10 pm

2 stops17h 05m

Vienna Intl

Tue 9/22

7:00 am-5:19 pm

2 stops19h 19m

$962

OntarioVienna

ONT Ontario - VIE Vienna Intl

ONTVIE

Ontario

Sun 8/30

7:13 pm-8:10 am

2 stops27h 57m

Vienna Intl

Sun 9/6

10:50 am-10:35 pm

2 stops20h 45m

$966
Quickest round-trip

OntarioVienna

ONT Ontario - VIE Vienna Intl

ONTVIE

Ontario

Wed 11/4

7:00 am-8:05 am

1 stop16h 05m

Vienna Intl

Wed 11/18

10:55 am-6:47 pm

1 stop16h 52m

$987

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 Monday. momondo users have found tickets for Monday departures for as low as $1,050. 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 $1,176.

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 05m

Direct flights

None
The fastest flight from Ontario to Vienna takes 16h 05m
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 05m.

  • 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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