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.

$1,287 Cheap Flights from Adelaide to Ontario in 2025/26

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.

08:30 - 12:37ADL-ONT

22h 37m2 stops

13:50 - 14:10ONT-ADL

29h 50m2 stops

$1,814United Airlines

Find Deal

Wed, 26 Nov - Tue, 2 Dec

14:55 - 10:01ADL-ONT

37h 36m1 stop

06:00 - 16:20ONT-ADL

39h 50m2 stops

$1,818United Airlines

Find Deal

Mon, 29 Dec - Tue, 13 Jan

06:10 - 12:37ADL-ONT

24h 57m2 stops

18:41 - 14:10ONT-ADL

24h 59m2 stops

$1,819United Airlines

Find Deal

Tue, 25 Nov - Tue, 2 Dec

14:55 - 22:41ADL-ONT

26h 16m1 stop

06:00 - 10:55ONT-ADL

34h 25m2 stops

$1,822United Airlines

Find Deal

Mon, 29 Dec - Mon, 12 Jan

07:15 - 12:37ADL-ONT

23h 52m2 stops

18:41 - 13:55ONT-ADL

24h 44m2 stops

$1,833United Airlines

Find Deal

Wed, 26 Nov - Tue, 2 Dec

14:55 - 17:43ADL-ONT

21h 18m1 stop

18:39 - 09:30ONT-ADL

20h 21m1 stop

$2,117United Airlines

Find Deal

Mon, 29 Dec - Mon, 12 Jan

06:00 - 22:49ADL-ONT

35h 19m2 stops

06:00 - 09:30ONT-ADL

57h 00m2 stops

$2,591United Airlines

Find Deal

Mon, 8 Dec - Wed, 17 Dec

08:30 - 17:34ADL-ONT

26h 34m2 stops

18:38 - 13:55ONT-ADL

24h 47m2 stops

$2,683United Airlines

Find Deal

Wed, 29 Oct - Tue, 4 Nov

08:30 - 17:34ADL-ONT

26h 34m2 stops

13:40 - 13:55ONT-ADL

29h 45m2 stops

$2,688United Airlines

Find Deal

Wed, 29 Oct - Tue, 4 Nov

22:00 - 18:53ADL-ONT

38h 23m2 stops

11:59 - 17:05ONT-ADL

34h 36m2 stops

$4,103Qatar Airways

Find Deal

Sun, 26 Oct - Sat, 8 Nov

United Airlines flights from Adelaide to Ontario

Our best United Airlines deals on Adelaide to Ontario flight tickets

United Airlines

26 Nov

ADL08:30Adelaide

22h 37m

2 stops

ONT12:37Ontario

2 Dec

ONT13:50Ontario

29h 50m

2 stops

ADL14:10Adelaide

$1,814

Find similar

United Airlines

29 Dec

ADL14:55Adelaide

37h 36m

1 stop

ONT10:01Ontario

13 Jan

ONT06:00Ontario

39h 50m

2 stops

ADL16:20Adelaide

$1,818

Find similar

United Airlines

25 Nov

ADL06:10Adelaide

24h 57m

2 stops

ONT12:37Ontario

2 Dec

ONT18:41Ontario

24h 59m

2 stops

ADL14:10Adelaide

$1,819

Find similar

Fly from

Fly to

Route

Depart

Return

Price

AdelaideOntario

ADL - ONT

ADLONT

Adelaide

Wed 26/11

08:30-12:37

2 stops22h 37m

Ontario

Tue 2/12

13:50-14:10

2 stops29h 50m

$1,814

AdelaideOntario

ADL - ONT

ADLONT

Adelaide

Mon 29/12

14:55-10:01

1 stop37h 36m

Ontario

Tue 13/1

06:00-16:20

2 stops39h 50m

$1,818

AdelaideOntario

ADL - ONT

ADLONT

Adelaide

Tue 25/11

06:10-12:37

2 stops24h 57m

Ontario

Tue 2/12

18:41-14:10

2 stops24h 59m

$1,819

AdelaideOntario

ADL - ONT

ADLONT

Adelaide

Mon 29/12

14:55-22:41

1 stop26h 16m

Ontario

Mon 12/1

06:00-10:55

2 stops34h 25m

$1,822

AdelaideOntario

ADL - ONT

ADLONT

Adelaide

Wed 26/11

07:15-12:37

2 stops23h 52m

Ontario

Tue 2/12

18:41-13:55

2 stops24h 44m

$1,833

AdelaideOntario

ADL - ONT

ADLONT

Adelaide

Mon 29/12

14:55-17:43

1 stop21h 18m

Ontario

Mon 12/1

18:39-09:30

1 stop20h 21m

$2,117

AdelaideOntario

ADL - ONT

ADLONT

Adelaide

Mon 8/12

06:00-22:49

2 stops35h 19m

Ontario

Wed 17/12

06:00-09:30

2 stops57h 00m

$2,591

AdelaideOntario

ADL - ONT

ADLONT

Adelaide

Wed 29/10

08:30-17:34

2 stops26h 34m

Ontario

Tue 4/11

18:38-13:55

2 stops24h 47m

$2,683

AdelaideOntario

ADL - ONT

ADLONT

Adelaide

Wed 29/10

08:30-17:34

2 stops26h 34m

Ontario

Tue 4/11

13:40-13:55

2 stops29h 45m

$2,688

AdelaideOntario

ADL - ONT

ADLONT

Adelaide

Sun 26/10

22:00-18:53

2 stops38h 23m

Ontario

Sat 8/11

11:59-17:05

2 stops34h 36m

$4,103

Flights are sorted by cheapest return flights first.

Showing 1-10 of 12 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?

China Airlines and United Airlines are the most popular carriers 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 47% 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

Direct flights	None

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

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How far is Adelaide to Ontario by plane?
Ontario is 13203.4 km away from Adelaide. Flights usually cover this in 21h 18m, 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.