Find Cheap Flights from Ontario to Sydney Kingsford Smith (ONT - SYD)

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FAQs for Booking Ontario to Sydney Kingsford Smith Flights

How long does a flight from Ontario to Sydney Kingsford Smith take?
An average nonstop flight takes 17h 45m, covering a distance of 7538 miles.
Which airlines provide the cheapest flights from Ontario to Sydney Kingsford Smith?
In the past 3 days, the cheapest round-trip tickets were found on United ($1025)
Do I need a passport to fly between Ontario and Sydney Kingsford Smith?
Yes.

Book cheap flights from Ontario to Sydney Kingsford Smith (round-trip)

Airports
Origin
Ontario
$1025
only
$1025
Destination
Sydney
$1025
only
$1025
Wed, Jan 24
ONT
SYD
25h 47m
Mon, Feb 5
SYD
ONT
17h 48m
$1025
Trip: 13 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 52387 reviews
Overall
7.2
Boarding
7.4
Comfort
6.9
Crew
7.7
Entertainment
6.5
Food
6.4
IAH
ATL
Good 7.6

The friendliness of the staff

Sitting on the plane due to a delay with the system

SLC
ORD
Good 6.0

Flight attendants seemed completely unwilling to accommodate any requests outside of their "service time".

CUN
IAD
Excellent 10.0

On time

Nothing

LHR
SFO
Excellent 9.0

Fortunately as a passenger the economy flight area was very spacious due to low numbers of passengers. Which provided a comfortable seating space.

The entertainment could and been a little more variable in the film range provided. But generally overall I had a excellent flight. Food was good. Crew were very good and I would definitely consider flying United on my next visit out and recommend that my family did. Thank you United.

ORD
CDG
Okay 4.0

Very helpful accommodating wife with wheelchair. Thank you.

The food was not tasty. Check in via kiosk was difficult for me, a senior citizen. Entertainment was very limited.

Fri, Apr 6
ONT
SYD
21h 20m
Tue, Apr 24
SYD
ONT
25h 53m
$1080
Trip: 19 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 52387 reviews
Overall
7.2
Boarding
7.4
Comfort
6.9
Crew
7.7
Entertainment
6.5
Food
6.4
ORD
HNL
Mediocre 3.3

Plane sat on runway & subsequently returned to gate due to mechanical issue resulting in 2.5 hour departure delay. Boarding was chaotic - flight attendant said procedure not consistent with UA practices. Food only available is purchased from UA, and what food was available ran out (I never did get fed on the 11+ hour flight). Cabin very cold.

ORD
SEA
Mediocre 2.0

The flight staff was rude, the wrong gas was put in the plane causing a delay, I missed my connection because of this where they wrote it was delayed because "it was snowing in Savannah" which was a blatant lie, but made it so they did not have to help me in any way since their delay was "weather" related. They could not get my to my destination until noon the next day which forced me to buy a new flight on Alaska air. My flight on Alaska was absolutely fantastic and I regret ever buying any United flight and will not in the future.

IAH
ATL
Good 7.6

The friendliness of the staff

Sitting on the plane due to a delay with the system

LAS
EWR
Excellent 8.0

Although the flight was delayed, we got into an earlier flight which was great

ORD
MUC
Mediocre 2.0

Our plane was defective so had to be replaced. This is fine, I certainly am willing to wait for a new plane if it means not blowing up over the ocean. The problem was how little the attendants at the gate communicated the situation to us. What should have been a brief layover became a 12 hour nightmare. The gate attendants did finally issue meal vouchers but they waited until 10 minutes before all the restaurants closed and only issued $10 a person. This is enough to buy a hot dog at an airport... We were told there wouldn't be any rescheduling of missed connections until we were "airborne". This resulted in mass panic and confusion upon reaching our destination. We were told to go to the service desk, half an airport away, but once the entire passenger contents of the plane arrived at that far flung service desk, we were mostly turned away to seek help at individual gates. This lack of communication meant I missed the next next available connecting flight and now have a further six hour layover. I understand accidents happen and planes can break down but the nearly complete lack of care and customer attention is, frankly, disappointing. I've now had nearly an entire day added to my travel time. If I'd been willing to loose that time I would have paid $600 less for my ticket. United finally offered a token of their appreciation : a $100 e-voucher. I have spent more than that on food and coffee in airports for the past two days while trying to survive until my next connections.

Mon, Mar 12
ONT
SYD
21h 35m
Mon, Apr 16
SYD
ONT
16h 18m
$1102
Trip: 36 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 52387 reviews
Overall
7.2
Boarding
7.4
Comfort
6.9
Crew
7.7
Entertainment
6.5
Food
6.4
EWR
CLT
Excellent 8.0

2 sear rows so no middle seat

Late departure

ORD
HNL
Mediocre 3.3

Plane sat on runway & subsequently returned to gate due to mechanical issue resulting in 2.5 hour departure delay. Boarding was chaotic - flight attendant said procedure not consistent with UA practices. Food only available is purchased from UA, and what food was available ran out (I never did get fed on the 11+ hour flight). Cabin very cold.

CUN
IAD
Excellent 10.0

On time

Nothing

ORD
SEA
Mediocre 2.0

The flight staff was rude, the wrong gas was put in the plane causing a delay, I missed my connection because of this where they wrote it was delayed because "it was snowing in Savannah" which was a blatant lie, but made it so they did not have to help me in any way since their delay was "weather" related. They could not get my to my destination until noon the next day which forced me to buy a new flight on Alaska air. My flight on Alaska was absolutely fantastic and I regret ever buying any United flight and will not in the future.

LAS
EWR
Excellent 8.0

Although the flight was delayed, we got into an earlier flight which was great

Mon, Jun 4
ONT
SYD
21h 20m
Tue, Jul 10
SYD
ONT
18h 37m
$1104
Trip: 37 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 52387 reviews
Overall
7.2
Boarding
7.4
Comfort
6.9
Crew
7.7
Entertainment
6.5
Food
6.4
ORD
SEA
Mediocre 2.0

The flight staff was rude, the wrong gas was put in the plane causing a delay, I missed my connection because of this where they wrote it was delayed because "it was snowing in Savannah" which was a blatant lie, but made it so they did not have to help me in any way since their delay was "weather" related. They could not get my to my destination until noon the next day which forced me to buy a new flight on Alaska air. My flight on Alaska was absolutely fantastic and I regret ever buying any United flight and will not in the future.

LAS
EWR
Excellent 8.0

Although the flight was delayed, we got into an earlier flight which was great

ABE
ORD
Mediocre 2.0

Nothing. Terrible service

The toilet over flowing and delaying my flight to the point of missing my connection.

ORD
HNL
Mediocre 3.3

Plane sat on runway & subsequently returned to gate due to mechanical issue resulting in 2.5 hour departure delay. Boarding was chaotic - flight attendant said procedure not consistent with UA practices. Food only available is purchased from UA, and what food was available ran out (I never did get fed on the 11+ hour flight). Cabin very cold.

LHR
SFO
Excellent 9.0

Fortunately as a passenger the economy flight area was very spacious due to low numbers of passengers. Which provided a comfortable seating space.

The entertainment could and been a little more variable in the film range provided. But generally overall I had a excellent flight. Food was good. Crew were very good and I would definitely consider flying United on my next visit out and recommend that my family did. Thank you United.

Mon, Feb 12
ONT
SYD
17h 45m
Wed, Feb 28
SYD
ONT
21h 58m
$1175
Trip: 17 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 52387 reviews
Overall
7.2
Boarding
7.4
Comfort
6.9
Crew
7.7
Entertainment
6.5
Food
6.4
LHR
SFO
Excellent 9.0

Fortunately as a passenger the economy flight area was very spacious due to low numbers of passengers. Which provided a comfortable seating space.

The entertainment could and been a little more variable in the film range provided. But generally overall I had a excellent flight. Food was good. Crew were very good and I would definitely consider flying United on my next visit out and recommend that my family did. Thank you United.

LAS
EWR
Excellent 8.0

Although the flight was delayed, we got into an earlier flight which was great

CUN
IAD
Excellent 10.0

On time

Nothing

IAH
ATL
Good 7.6

The friendliness of the staff

Sitting on the plane due to a delay with the system

ABE
ORD
Mediocre 2.0

Nothing. Terrible service

The toilet over flowing and delaying my flight to the point of missing my connection.

Wed, Feb 14
ONT
SYD
17h 45m
Tue, Mar 6
SYD
ONT
21h 58m
$1176
Trip: 21 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 52387 reviews
Overall
7.2
Boarding
7.4
Comfort
6.9
Crew
7.7
Entertainment
6.5
Food
6.4
CUN
IAD
Excellent 10.0

On time

Nothing

IAH
ATL
Good 7.6

The friendliness of the staff

Sitting on the plane due to a delay with the system

ORD
CDG
Okay 4.0

Very helpful accommodating wife with wheelchair. Thank you.

The food was not tasty. Check in via kiosk was difficult for me, a senior citizen. Entertainment was very limited.

ORD
MUC
Mediocre 2.0

Our plane was defective so had to be replaced. This is fine, I certainly am willing to wait for a new plane if it means not blowing up over the ocean. The problem was how little the attendants at the gate communicated the situation to us. What should have been a brief layover became a 12 hour nightmare. The gate attendants did finally issue meal vouchers but they waited until 10 minutes before all the restaurants closed and only issued $10 a person. This is enough to buy a hot dog at an airport... We were told there wouldn't be any rescheduling of missed connections until we were "airborne". This resulted in mass panic and confusion upon reaching our destination. We were told to go to the service desk, half an airport away, but once the entire passenger contents of the plane arrived at that far flung service desk, we were mostly turned away to seek help at individual gates. This lack of communication meant I missed the next next available connecting flight and now have a further six hour layover. I understand accidents happen and planes can break down but the nearly complete lack of care and customer attention is, frankly, disappointing. I've now had nearly an entire day added to my travel time. If I'd been willing to loose that time I would have paid $600 less for my ticket. United finally offered a token of their appreciation : a $100 e-voucher. I have spent more than that on food and coffee in airports for the past two days while trying to survive until my next connections.

SLC
ORD
Good 6.0

Flight attendants seemed completely unwilling to accommodate any requests outside of their "service time".

Thu, May 3
ONT
SYD
27h 20m
Thu, May 10
SYD
ONT
18h 37m
$1327
Trip: 8 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 52387 reviews
Overall
7.2
Boarding
7.4
Comfort
6.9
Crew
7.7
Entertainment
6.5
Food
6.4
ORD
MUC
Mediocre 2.0

Our plane was defective so had to be replaced. This is fine, I certainly am willing to wait for a new plane if it means not blowing up over the ocean. The problem was how little the attendants at the gate communicated the situation to us. What should have been a brief layover became a 12 hour nightmare. The gate attendants did finally issue meal vouchers but they waited until 10 minutes before all the restaurants closed and only issued $10 a person. This is enough to buy a hot dog at an airport... We were told there wouldn't be any rescheduling of missed connections until we were "airborne". This resulted in mass panic and confusion upon reaching our destination. We were told to go to the service desk, half an airport away, but once the entire passenger contents of the plane arrived at that far flung service desk, we were mostly turned away to seek help at individual gates. This lack of communication meant I missed the next next available connecting flight and now have a further six hour layover. I understand accidents happen and planes can break down but the nearly complete lack of care and customer attention is, frankly, disappointing. I've now had nearly an entire day added to my travel time. If I'd been willing to loose that time I would have paid $600 less for my ticket. United finally offered a token of their appreciation : a $100 e-voucher. I have spent more than that on food and coffee in airports for the past two days while trying to survive until my next connections.

IAH
ATL
Good 7.6

The friendliness of the staff

Sitting on the plane due to a delay with the system

CUN
IAD
Excellent 10.0

On time

Nothing

LHR
SFO
Excellent 9.0

Fortunately as a passenger the economy flight area was very spacious due to low numbers of passengers. Which provided a comfortable seating space.

The entertainment could and been a little more variable in the film range provided. But generally overall I had a excellent flight. Food was good. Crew were very good and I would definitely consider flying United on my next visit out and recommend that my family did. Thank you United.

ORD
CDG
Okay 4.0

Very helpful accommodating wife with wheelchair. Thank you.

The food was not tasty. Check in via kiosk was difficult for me, a senior citizen. Entertainment was very limited.

Tue, Dec 19
ONT
SYD
34h 15m
Mon, Jan 15
SYD
ONT
23h 03m
$2338
Trip: 28 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 52387 reviews
Overall
7.2
Boarding
7.4
Comfort
6.9
Crew
7.7
Entertainment
6.5
Food
6.4
CUN
IAD
Excellent 10.0

On time

Nothing

ORD
CDG
Okay 4.0

Very helpful accommodating wife with wheelchair. Thank you.

The food was not tasty. Check in via kiosk was difficult for me, a senior citizen. Entertainment was very limited.

ORD
SEA
Mediocre 2.0

The flight staff was rude, the wrong gas was put in the plane causing a delay, I missed my connection because of this where they wrote it was delayed because "it was snowing in Savannah" which was a blatant lie, but made it so they did not have to help me in any way since their delay was "weather" related. They could not get my to my destination until noon the next day which forced me to buy a new flight on Alaska air. My flight on Alaska was absolutely fantastic and I regret ever buying any United flight and will not in the future.

IAH
ATL
Good 7.6

The friendliness of the staff

Sitting on the plane due to a delay with the system

LHR
SFO
Excellent 9.0

Fortunately as a passenger the economy flight area was very spacious due to low numbers of passengers. Which provided a comfortable seating space.

The entertainment could and been a little more variable in the film range provided. But generally overall I had a excellent flight. Food was good. Crew were very good and I would definitely consider flying United on my next visit out and recommend that my family did. Thank you United.

Fri, Dec 29
ONT
SYD
21h 32m
Tue, Jan 9
SYD
ONT
18h 58m
$2627
Trip: 12 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 52387 reviews
Overall
7.2
Boarding
7.4
Comfort
6.9
Crew
7.7
Entertainment
6.5
Food
6.4
PVD
EWR
Mediocre 2.0

Flight delayed missed connecting flight. Second flight delayed missed connecting flight. Overnight in airport expected unless united pays for hotel. Absolutely miserable. Paid 430$ one way for a 25 hour flight. Will never fly United again.

ORD
SEA
Mediocre 2.0

The flight staff was rude, the wrong gas was put in the plane causing a delay, I missed my connection because of this where they wrote it was delayed because "it was snowing in Savannah" which was a blatant lie, but made it so they did not have to help me in any way since their delay was "weather" related. They could not get my to my destination until noon the next day which forced me to buy a new flight on Alaska air. My flight on Alaska was absolutely fantastic and I regret ever buying any United flight and will not in the future.

ORD
CDG
Okay 4.0

Very helpful accommodating wife with wheelchair. Thank you.

The food was not tasty. Check in via kiosk was difficult for me, a senior citizen. Entertainment was very limited.

LAS
EWR
Excellent 8.0

Although the flight was delayed, we got into an earlier flight which was great

EWR
CLT
Excellent 8.0

2 sear rows so no middle seat

Late departure

Fri, Dec 22
ONT
SYD
21h 32m
Sat, Jan 13
SYD
ONT
23h 33m
$3146
Trip: 23 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 52387 reviews
Overall
7.2
Boarding
7.4
Comfort
6.9
Crew
7.7
Entertainment
6.5
Food
6.4
LHR
SFO
Excellent 9.0

Fortunately as a passenger the economy flight area was very spacious due to low numbers of passengers. Which provided a comfortable seating space.

The entertainment could and been a little more variable in the film range provided. But generally overall I had a excellent flight. Food was good. Crew were very good and I would definitely consider flying United on my next visit out and recommend that my family did. Thank you United.

ABE
ORD
Mediocre 2.0

Nothing. Terrible service

The toilet over flowing and delaying my flight to the point of missing my connection.

ORD
HNL
Mediocre 3.3

Plane sat on runway & subsequently returned to gate due to mechanical issue resulting in 2.5 hour departure delay. Boarding was chaotic - flight attendant said procedure not consistent with UA practices. Food only available is purchased from UA, and what food was available ran out (I never did get fed on the 11+ hour flight). Cabin very cold.

IAH
ATL
Good 7.6

The friendliness of the staff

Sitting on the plane due to a delay with the system

LAS
EWR
Excellent 8.0

Although the flight was delayed, we got into an earlier flight which was great

*
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The fares displayed include all taxes and fees for economy class travel and were found by the provider in the last 72 hours. Seats are limited and may not be available on all flights and days. Fares are subject to change and may not be available on all flights or dates of travel. Some carriers charge additional fees for extra checked bags. Please check the carriers' sites.