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.

$1,176 Cheap Flights from Adelaide to Ontario in 2026

1 adult

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Find the cheapest flights from Adelaide to Los Angeles

Round-trip

One-way

Cheap return flights

Enter your travel dates to find the best prices.

06:05 - 12:22

ADL

ONT

22h 47m

2 stops

18:39 - 11:05

ONT

ADL

23h 56m

2 stops

$1,957United Airlines

Mon, 18 May - Mon, 20 Jul

06:40 - 12:12

ADL

ONT

22h 02m

2 stops

19:13 - 11:05

ONT

ADL

23h 22m

2 stops

$1,963United Airlines

Mon, 3 Aug - Wed, 2 Sep

19:10 - 21:28

ADL

ONT

42h 48m

2 stops

08:00 - 16:25

ONT

ADL

39h 55m

2 stops

$1,991Multiple Airlines

Wed, 2 Sep - Wed, 23 Sep

06:05 - 17:52

ADL

ONT

28h 17m

2 stops

18:59 - 11:05

ONT

ADL

23h 36m

2 stops

$2,027United Airlines

Thu, 7 May - Fri, 15 May

06:05 - 12:22

ADL

ONT

22h 47m

2 stops

18:59 - 11:05

ONT

ADL

23h 36m

2 stops

$3,130United Airlines

Sat, 2 May - Tue, 5 May

06:05 - 12:20

ADL

ONT

22h 45m

2 stops

18:59 - 13:45

ONT

ADL

26h 16m

2 stops

$3,147United Airlines

Sun, 26 Apr - Sun, 3 May

12:40 - 18:00

ADL

ONT

45h 50m

2 stops

00:10 - 17:45

ONT

ADL

49h 05m

2 stops

$3,271China Airlines

Thu, 23 Apr - Tue, 5 May

20:10 - 18:00

ADL

ONT

62h 20m

2 stops

00:10 - 13:35

ONT

ADL

44h 55m

2 stops

$3,282Multiple Airlines

Mon, 11 May - Sun, 17 May

20:00 - 22:59

ADL

ONT

43h 29m

3 stops

10:37 - 11:50

ONT

ADL

32h 43m

3 stops

$3,623Air Canada

Mon, 11 May - Mon, 18 May

12:40 - 18:00

ADL

ONT

45h 50m

2 stops

00:45 - 13:35

ONT

ADL

44h 20m

2 stops

$3,785Multiple Airlines

Fri, 26 Jun - Sat, 11 Jul

United Airlines flights from Adelaide to Ontario

Our best United Airlines deals on Adelaide to Ontario flight tickets

United Airlines

18 May

ADL06:05Adelaide

22h 47m

2 stops

ONT12:22Ontario

20 July

ONT18:39Ontario

23h 56m

2 stops

ADL11:05Adelaide

$1,957

United Airlines

3 Aug

ADL06:40Adelaide

22h 02m

2 stops

ONT12:12Ontario

2 Sept

ONT19:13Ontario

23h 22m

2 stops

ADL11:05Adelaide

$1,963

United Airlines

7 May

ADL06:05Adelaide

28h 17m

2 stops

ONT17:52Ontario

15 May

ONT18:59Ontario

23h 36m

2 stops

ADL11:05Adelaide

$2,027

Fly from

Fly to

Route

Depart

Return

Price

Cheapest return flight

AdelaideOntario

ADL - ONT

ADLONT

Adelaide

Mon 18/5

06:05-12:22

2 stops22h 47m

Ontario

Mon 20/7

18:39-11:05

2 stops23h 56m

$1,957

Fastest return journey

AdelaideOntario

ADL - ONT

ADLONT

Adelaide

Mon 3/8

06:40-12:12

2 stops22h 02m

Ontario

Wed 2/9

19:13-11:05

2 stops23h 22m

$1,963

AdelaideOntario

ADL - ONT

ADLONT

Adelaide

Wed 2/9

19:10-21:28

2 stops42h 48m

Ontario

Wed 23/9

08:00-16:25

2 stops39h 55m

$1,991

AdelaideOntario

ADL - ONT

ADLONT

Adelaide

Thu 7/5

06:05-17:52

2 stops28h 17m

Ontario

Fri 15/5

18:59-11:05

2 stops23h 36m

$2,027

AdelaideOntario

ADL - ONT

ADLONT

Adelaide

Sat 2/5

06:05-12:22

2 stops22h 47m

Ontario

Tue 5/5

18:59-11:05

2 stops23h 36m

$3,130

AdelaideOntario

ADL - ONT

ADLONT

Adelaide

Sun 26/4

06:05-12:20

2 stops22h 45m

Ontario

Sun 3/5

18:59-13:45

2 stops26h 16m

$3,147

AdelaideOntario

ADL - ONT

ADLONT

Adelaide

Thu 23/4

12:40-18:00

2 stops45h 50m

Ontario

Tue 5/5

00:10-17:45

2 stops49h 05m

$3,271

AdelaideOntario

ADL - ONT

ADLONT

Adelaide

Mon 11/5

20:10-18:00

2 stops62h 20m

Ontario

Sun 17/5

00:10-13:35

2 stops44h 55m

$3,282

AdelaideOntario

ADL - ONT

ADLONT

Adelaide

Mon 11/5

20:00-22:59

3 stops43h 29m

Ontario

Mon 18/5

10:37-11:50

3 stops32h 43m

$3,623

AdelaideOntario

ADL - ONT

ADLONT

Adelaide

Fri 26/6

12:40-18:00

2 stops45h 50m

Ontario

Sat 11/7

00:45-13:35

2 stops44h 20m

$3,785

Flights are sorted by cheapest return flights first.

Showing 1-10 of 15 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 is the most popular carrier operating from Adelaide to Ontario

Which airlines fly to Ontario?

Qantas Airways, Air New Zealand and Fiji Airways 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 52% of people opting to fly with this airline when travelling to Ontario. Keep in mind that there are 7 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

Fastest flight time	22h 02m
Direct flights	None

The fastest flight from Adelaide to Ontario takes 22h 02m

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

Search flight deals

How far is Adelaide to Ontario by plane?
Ontario is 13203.4 km away from Adelaide. Flights usually cover this in 22h 02m, 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.