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

Prices for flights from Adelaide Airport to Ontario Airport are updated daily.

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

The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Adelaide Airport to Ontario Airport.

What documentation or ID do you need to fly to Ontario Airport?

The travel and health documents required for your trip to Ontario Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s licence, and a passport valid for six-months after you plan to arrive at Ontario Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$980 Cheap Flights from Adelaide to Ontario in 2026

Find the cheapest flights from Adelaide to Los Angeles

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One-way

Last minute

Cheap return flights

Enter your travel dates to find the best prices.

08:40 - 17:56ADL Adelaide-ONT Ontario

27h 46m2 stops Melbourne San Francisco

18:27 - 09:30ONT Ontario-ADL Adelaide

20h 33m1 stop San Francisco

$1,653United Airlines

Thu, 19 Nov - Mon, 21 Dec

07:15 - 12:12ADL Adelaide-ONT Ontario

21h 27m2 stops Melbourne San Francisco

18:32 - 10:55ONT Ontario-ADL Adelaide

23h 53m2 stops San Francisco Sydney Kingsford Smith

$1,692United Airlines

Mon, 21 Sep - Mon, 28 Sep

07:40 - 15:22ADL Adelaide-ONT Ontario

25h 12m2 stops Melbourne San Francisco

13:35 - 12:00ONT Ontario-ADL Adelaide

28h 55m2 stops San Francisco Brisbane

$1,755United Airlines

Mon, 5 Oct - Thu, 29 Oct

06:05 - 12:12ADL Adelaide-ONT Ontario

22h 37m2 stops Melbourne San Francisco

13:52 - 10:55ONT Ontario-ADL Adelaide

28h 33m2 stops San Francisco Sydney Kingsford Smith

$1,758United Airlines

Sun, 20 Sep - Sun, 27 Sep

07:40 - 15:22ADL Adelaide-ONT Ontario

25h 12m2 stops Melbourne San Francisco

16:03 - 13:45ONT Ontario-ADL Adelaide

28h 12m2 stops San Francisco Melbourne

$2,260United Airlines

Tue, 6 Oct - Tue, 13 Oct

06:05 - 14:01ADL Adelaide-ONT Ontario

24h 26m2 stops Melbourne San Francisco

13:52 - 11:05ONT Ontario-ADL Adelaide

28h 43m2 stops San Francisco Melbourne

$2,335United Airlines

Tue, 22 Sep - Tue, 29 Sep

06:00 - 12:12ADL Adelaide-ONT Ontario

22h 42m2 stops Sydney Kingsford Smith San Francisco

16:03 - 11:05ONT Ontario-ADL Adelaide

26h 32m2 stops San Francisco Melbourne

$2,410United Airlines

Wed, 23 Sep - Wed, 30 Sep

06:05 - 18:11ADL Adelaide-ONT Ontario

28h 36m2 stops Melbourne San Francisco

13:52 - 10:55ONT Ontario-ADL Adelaide

28h 33m2 stops San Francisco Sydney Kingsford Smith

$2,464United Airlines

Sat, 19 Sep - Sat, 26 Sep

22:00 - 18:17ADL Adelaide-ONT Ontario

38h 47m2 stops Doha Hamad Intl Seattle/Tacoma Intl

06:00 - 15:55ONT Ontario-ADL Adelaide

39h 25m2 stops Seattle/Tacoma Intl Doha Hamad Intl

$2,499Qatar Airways

Wed, 4 Nov - Wed, 2 Dec

19:45 - 17:05ADL Adelaide-ONT Ontario

39h 50m2 stops Melbourne Taipei City Taiwan Taoyuan Intl

22:50 - 18:25ONT Ontario-ADL Adelaide

49h 05m2 stops Taipei City Taiwan Taoyuan Intl Sydney Kingsford Smith

$2,602China Airlines

Wed, 4 Nov - Wed, 2 Dec

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United Airlines flights from Adelaide to Ontario

Our best United Airlines deals on Adelaide to Ontario flight tickets

United Airlines

19 Nov

ADL08:40Adelaide

27h 46m

2 stops

ONT17:56Ontario

21 Dec

ONT18:27Ontario

20h 33m

1 stop

ADL09:30Adelaide

$1,653

United Airlines

21 Sept

ADL07:15Adelaide

21h 27m

2 stops

ONT12:12Ontario

28 Sept

ONT18:32Ontario

23h 53m

2 stops

ADL10:55Adelaide

$1,692

United Airlines

5 Oct

ADL07:40Adelaide

25h 12m

2 stops

ONT15:22Ontario

29 Oct

ONT13:35Ontario

28h 55m

2 stops

ADL12:00Adelaide

$1,755

Qatar Airways flights from Adelaide to Ontario

Our best Qatar Airways deals on Adelaide to Ontario flight tickets

Qatar Airways

10 Sept

ADL22:00Adelaide

37h 33m

2 stops

ONT19:03Ontario

23 Sept

ONT06:02Ontario

40h 28m

2 stops

ADL15:00Adelaide

$2,484

Qatar Airways

4 Nov

ADL22:00Adelaide

38h 47m

2 stops

ONT18:17Ontario

2 Dec

ONT06:00Ontario

39h 25m

2 stops

ADL15:55Adelaide

$2,499

Qatar Airways

19 Nov

ADL22:00Adelaide

44h 01m

2 stops

ONT23:31Ontario

21 Dec

ONT06:00Ontario

40h 35m

2 stops

ADL17:05Adelaide

$3,476

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

AdelaideOntario

ADL Adelaide - ONT Ontario

ADLONT

Adelaide

Thu 19/11

08:40-17:56

2 stops27h 46m

Ontario

Mon 21/12

18:27-09:30

1 stop20h 33m

$1,653

Fastest return journey

AdelaideOntario

ADL Adelaide - ONT Ontario

ADLONT

Adelaide

Mon 21/9

07:15-12:12

2 stops21h 27m

Ontario

Mon 28/9

18:32-10:55

2 stops23h 53m

$1,692

AdelaideOntario

ADL Adelaide - ONT Ontario

ADLONT

Adelaide

Mon 5/10

07:40-15:22

2 stops25h 12m

Ontario

Thu 29/10

13:35-12:00

2 stops28h 55m

$1,755

AdelaideOntario

ADL Adelaide - ONT Ontario

ADLONT

Adelaide

Sun 20/9

06:05-12:12

2 stops22h 37m

Ontario

Sun 27/9

13:52-10:55

2 stops28h 33m

$1,758

AdelaideOntario

ADL Adelaide - ONT Ontario

ADLONT

Adelaide

Tue 6/10

07:40-15:22

2 stops25h 12m

Ontario

Tue 13/10

16:03-13:45

2 stops28h 12m

$2,260

AdelaideOntario

ADL Adelaide - ONT Ontario

ADLONT

Adelaide

Tue 22/9

06:05-14:01

2 stops24h 26m

Ontario

Tue 29/9

13:52-11:05

2 stops28h 43m

$2,335

AdelaideOntario

ADL Adelaide - ONT Ontario

ADLONT

Adelaide

Wed 23/9

06:00-12:12

2 stops22h 42m

Ontario

Wed 30/9

16:03-11:05

2 stops26h 32m

$2,410

AdelaideOntario

ADL Adelaide - ONT Ontario

ADLONT

Adelaide

Sat 19/9

06:05-18:11

2 stops28h 36m

Ontario

Sat 26/9

13:52-10:55

2 stops28h 33m

$2,464

AdelaideOntario

ADL Adelaide - ONT Ontario

ADLONT

Adelaide

Wed 4/11

22:00-18:17

2 stops38h 47m

Ontario

Wed 2/12

06:00-15:55

2 stops39h 25m

$2,499

AdelaideOntario

ADL Adelaide - ONT Ontario

ADLONT

Adelaide

Wed 4/11

19:45-17:05

2 stops39h 50m

Ontario

Wed 2/12

22:50-18:25

2 stops49h 05m

$2,602

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Adelaide to Ontario

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 Adelaide to Ontario?

United Airlines and Virgin Australia are the most popular carriers operating from Adelaide to Ontario

Which airlines fly to Ontario?

Qantas Airways, Fiji Airways and Air New Zealand are the top three most popular airlines that fly to Ontario from Adelaide according to our data. Qantas Airways is the first choice among our users, with 61% of people opting to fly with this airline when travelling to Ontario. Keep in mind that there are 6 different airlines that fly to Ontario on a routine basis, so you have a few additional options to choose from.

When to book flights from Adelaide to Ontario

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

Estimated return price

Cheap Adelaide to Ontario (ADL to ONT) flight deals and tips

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

Best price found	$980
Fastest flight time	22h 42m
Direct flights	None

The best one-way flight to Ontario from Adelaide in the past 72 hours is $980. The best return flight deal from Adelaide to Ontario found on momondo in the last 72 hours is $1,653.

The fastest flight from Adelaide to Ontario takes 22h 42m

There are no direct flights from Adelaide to Ontario. There are no popular flight routes from Adelaide to Ontario.

Search flight deals

Frequently asked questions about flying from Adelaide to Ontario

How far is Adelaide to Ontario by plane?
Ontario is 13203.4 km away from Adelaide. Flights usually cover this in 22h 42m, depending on flying conditions and air traffic around both airports.
When did momondo last update prices for flights from Adelaide Airport to Ontario Airport?
Prices for flights from Adelaide Airport to Ontario Airport are updated daily.
How old do you have to be to fly from Adelaide Airport to Ontario Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Adelaide Airport to Ontario Airport.
What documentation or ID do you need to fly to Ontario Airport?
The travel and health documents required for your trip to Ontario Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s licence, and a passport valid for six-months after you plan to arrive at Ontario Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Adelaide to Ontario . Millions of users trust and use momondo every year so you are in good hands.

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

momondo does allow users to show only those flights to Ontario from Adelaide which offer a flexible booking policy as well as other useful filters and features.

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

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Adelaide to Ontario.

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

If you are not ready to book a flight from Adelaide to Ontario now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Ontario and let you know when they change.