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Cheap flights from Ontario to Austria from $560

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 Austria departing on 8/19. 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 Austria

Cheap round-trip flights

Enter your travel dates to find the best prices.
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
9:01 am - 12:35 pmONT  Ontario-VIE Vienna Intl
18h 34m2 stops San Francisco Frankfurt am Main
United Airlines Logo
10:30 am - 10:59 pmVIE  Vienna Intl-ONT Ontario
45h 29m2 stops Toronto Pearson Intl Chicago O'Hare Intl
$967United Airlines
Fri, Sep 4 - Thu, Sep 10
United Airlines Logo
9:01 am - 12:35 pmONT  Ontario-VIE Vienna Intl
18h 34m2 stops San Francisco Frankfurt am Main
United Airlines Logo
10:30 am - 10:59 pmVIE  Vienna Intl-ONT Ontario
21h 29m1 stop Chicago O'Hare Intl
$982United Airlines
Fri, Sep 4 - Thu, Sep 10
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
Turkish Airlines Logo
10:39 pm - 6:15 pmONT  Ontario-VIE Vienna Intl
34h 36m2 stops New York John F Kennedy Intl Istanbul
Turkish Airlines Logo
4:35 pm - 8:57 pmVIE  Vienna Intl-ONT Ontario
61h 22m2 stops Istanbul New York John F Kennedy Intl
$1,003Turkish Airlines
Sat, Sep 12 - Mon, Sep 28

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United Airlines flights from Ontario to Austria

Our best United Airlines deals on Ontario to Austria flight tickets
United Airlines
Oct 6
ONT8:03 amOntario
38h 47m
3 stops
VIE7:50 amVienna Intl
Oct 15
VIE10:30 amVienna Intl
21h 21m
2 stops
ONT10:51 pmOntario
$897
United Airlines
Sep 29
ONT7:00 amOntario
16h 15m
1 stop
VIE8:15 amVienna Intl
Oct 7
VIE2:55 pmVienna Intl
16h 56m
2 stops
ONT10:51 pmOntario
$900
United Airlines
Sep 4
ONT9:01 amOntario
18h 34m
2 stops
VIE12:35 pmVienna Intl
Sep 10
VIE10:30 amVienna Intl
45h 29m
2 stops
ONT10:59 pmOntario
$967

Turkish Airlines flights from Ontario to Austria

Our best Turkish Airlines deals on Ontario to Austria flight tickets
Turkish Airlines
Sep 12
ONT10:39 pmOntario
34h 36m
2 stops
VIE6:15 pmVienna Intl
Sep 28
VIE4:35 pmVienna Intl
61h 22m
2 stops
ONT8:57 pmOntario
$1,003
Turkish Airlines
Sep 14
ONT10:39 pmOntario
25h 26m
2 stops
VIE9:05 amVienna Intl
Sep 28
VIE7:50 pmVienna Intl
58h 07m
2 stops
ONT8:57 pmOntario
$1,006
Turkish Airlines
Sep 13
ONT10:39 pmOntario
34h 36m
2 stops
VIE6:15 pmVienna Intl
Sep 29
VIE1:50 pmVienna Intl
40h 07m
2 stops
ONT8:57 pmOntario
$1,013

momondo 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, momondo users made 832,500 searches. Data last updated August 8, 2026.
Use the filters below to find and compare flights from Ontario to Austria that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

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

Fri 9/4

9:01 am-12:35 pm

2 stops18h 34m

Vienna Intl

Thu 9/10

10:30 am-10:59 pm

2 stops45h 29m

$967

OntarioVienna

ONT Ontario - VIE Vienna Intl

ONTVIE

Ontario

Fri 9/4

9:01 am-12:35 pm

2 stops18h 34m

Vienna Intl

Thu 9/10

10:30 am-10:59 pm

1 stop21h 29m

$982
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

OntarioVienna

ONT Ontario - VIE Vienna Intl

ONTVIE

Ontario

Sat 9/12

10:39 pm-6:15 pm

2 stops34h 36m

Vienna Intl

Mon 9/28

4:35 pm-8:57 pm

2 stops61h 22m

$1,003

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 Austria from

How to get the cheapest flight ticket from Ontario to Austria

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 airline that flies from Ontario to Austria?

United Airlines, Turkish Airlines, and Austrian Airlines are the most popular carriers operating from Ontario to Austria

What airlines fly to Austria?

Scandinavian Airlines, Condor and Austrian Airlines are the top three most popular airlines that fly to Austria from Ontario according to our data. Scandinavian Airlines is the first choice among our users, with 42% of people opting to fly with this airline when traveling to Austria. Keep in mind that there are 10 different airlines that fly to Austria on a routine basis, so you have a few additional options to choose from.

Cheap Ontario to Austria flight deals and tips

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

Fastest flight time

16h 15m

Direct flights

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

Frequently asked questions about flying from Ontario to Austria

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

    Prices for flights from Ontario Airport to Austria are refreshed on a daily basis.

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

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Ontario Airport to Austria.

  • What documentation or ID do you need to fly to Austria?

    The required travel and health documents for your Austria 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 Austria. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Why use momondo?

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

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 Austria from Ontario.

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

All flight searches from Ontario to Austria on momondo can be filtered to show those which offer flexible booking policies.

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

momondo helps you find the best flight between Ontario and Austria 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 Austria right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Ontario to Austria flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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