Find Cheap Flights from Houston George Bush Intcntl to Sydney Kingsford Smith (IAH - SYD)

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Good to Know

Low Season:
May
Best time to beat the crowds
4%
expected price decrease
High Season:
December
Most popular time to fly
16%
expected price increase
Average Price:
$2092
(avg. price over the last 2 weeks)
Good Deal:
$1177
or less (round trip)

When to Book Flights from Houston George Bush Intcntl to Sydney Kingsford Smith

Average price per month
Flight prices as travel date approaches
-1 day
-2 days

Top tips for Finding a Cheap Flight

Looking for a cheap flight? 25% of our users found flights on this route for $1177 or less.
The cheapest flight from Houston George Bush Intcntl to Sydney Kingsford Smith was found 67 days before departure, on average.
Book at least 5 weeks before departure in order to get a below-average price.
Morning departure is around 12% cheaper than an evening flight, on average*.
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

FAQs for Booking Houston George Bush Intcntl to Sydney Kingsford Smith Flights

How long does a flight from Houston George Bush Intcntl to Sydney Kingsford Smith take?
An average nonstop flight takes 17h 30m, covering a distance of 8598 miles.
How many flights are there between Houston George Bush Intcntl and Sydney Kingsford Smith?
There are 7 (nonstop) flights between Houston George Bush Intcntl and Sydney Kingsford Smith per week, averaging 1 per day.
Which airlines provide the cheapest flights from Houston George Bush Intcntl to Sydney Kingsford Smith?
In the past 3 days, the cheapest round-trip tickets were found on Multiple Airlines ($1004), Qantas Airways ($1017) and United ($1150).
Do I need a passport to fly between Houston George Bush Intcntl and Sydney Kingsford Smith?
Yes.
Which airlines fly most frequently between Houston George Bush Intcntl and Sydney Kingsford Smith?
United (1 times daily) are the most frequent flyers on this route.
What’s the cheapest day of the week to fly Houston George Bush Intcntl to Sydney Kingsford Smith?
For Houston George Bush Intcntl to Sydney Kingsford Smith, Tuesday is the cheapest day to fly on average and Wednesday is the most expensive. Flying from Sydney Kingsford Smith back to Houston George Bush Intcntl, the best deals are generally found on Saturday, with Saturday being the most expensive.

Book cheap flights from Houston George Bush Intcntl to Sydney Kingsford Smith (round-trip)

Airports
Origin
Houston
$1004
only
$1004
Destination
Sydney
$1004
only
$1004
Tue, May 1
IAH
SYD
40h 40m
Sun, May 13
SYD
IAH
34h 00m
$1004
Trip: 13 days
Overall 0.0 Poor
Based on 0 reviews
Tue, Jan 30
IAH
SYD
25h 14m
Tue, Feb 6
SYD
IAH
19h 15m
$1017
Trip: 8 days
8.0ExcellentShow reviews
Overall 8.0 Excellent
Based on 2796 reviews
Overall
8.1
Boarding
8.2
Comfort
7.8
Crew
8.5
Entertainment
7.9
Food
7.6
LAX
SYD
Excellent 9.0

The vegan food was delicious. The stewards and stewardesses were available and friendly. The seats were bigger than the new norm. He movies and documentaries were a good selection.

The seats could be bigger. The eggs could be vegetarian.

LAX
MEL
Excellent 10.0

The crew were professional and looks the part, food was warm and tasty and they made regular checks to see if we needed water or food.

Well there were 3 crying babies for a good portion of the flight which is no fault of the airline or parents it's just something that wasn't as desirable.

SYD
SFO
Excellent 8.6

Despite the delay in boarding, we were greeted with a smile from the crew. Meal service went well and love the 3 choices of meals offered in economy

Would be nice to check-in for flight on app instead of laptop or tablet

LAX
SYD
Good 6.0

The food is excellent. The flying attendant is friendly

The plane was very late

SYD
YVR
Excellent 9.0

747-400, new seats with more legroom. Awesome selection of movies, TV & documentaries.

Tray table would not stay up - steward gave me stickers to hold it up.

Fri, Feb 2
IAH
SYD
17h 30m
Sat, Feb 10
SYD
IAH
15h 40m
$1150
Trip: 9 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 52353 reviews
Overall
7.2
Boarding
7.4
Comfort
6.9
Crew
7.7
Entertainment
6.5
Food
6.4
FLL
ORD
Excellent 8.0

no aisle seat

LAS
EWR
Excellent 8.0

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

EWR
BTV
Excellent 10.0

All the effort to make my need for wheelchair problem free

EWR
CLT
Excellent 8.0

2 sear rows so no middle seat

Late departure

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
IAH
SYD
26h 25m
Tue, Jan 9
SYD
IAH
25h 13m
$2020
Trip: 12 days
7.1GoodShow reviews
Overall 7.1 Good
Based on 20263 reviews
Overall
7.2
Boarding
7.4
Comfort
7.0
Crew
7.7
Entertainment
6.9
Food
6.5
YYZ
YEG
Excellent 10.0

Food was great

Nothing

FLL
YYZ
Good 6.6

left on time, arrived on time Good communicatiion from captain

Staff in economy not very friendly Very long wait for baggage

YYZ
MCO
Excellent 10.0

The exact timing going and coming

After returning back and the airplane taxing on the ground it takes one hour to go out of the airport gate to my riding although I have no luggage

MSP
YYZ
Excellent 8.6

Crew and flight were great

Not great food, but that's ok.

YYZ
DUB
Good 7.3

The flights were great, on time and no problems. I was very comfortable and the food was good. FLight attendents were great except one guy who was not friendly and needed a vacation or another job.

Tue, Feb 27
IAH
SYD
17h 30m
Mon, Mar 12
SYD
IAH
15h 40m
$1150
Trip: 13 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 52353 reviews
Overall
7.2
Boarding
7.4
Comfort
6.9
Crew
7.7
Entertainment
6.5
Food
6.4
EWR
BTV
Excellent 10.0

All the effort to make my need for wheelchair problem free

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.

LAS
EWR
Excellent 8.0

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

FLL
ORD
Excellent 8.0

no aisle seat

EWR
CLT
Excellent 8.0

2 sear rows so no middle seat

Late departure

Thu, Mar 1
IAH
SYD
17h 30m
Tue, Mar 13
SYD
IAH
15h 40m
$1150
Trip: 12 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 52353 reviews
Overall
7.2
Boarding
7.4
Comfort
6.9
Crew
7.7
Entertainment
6.5
Food
6.4
ATL
ORD
Excellent 8.0

The United pilot we flew that day. did great job. we arrive safe to the distination despite of the climate condition. im happy for the service.so far im satified..

the delayed flight this time almost cause us to lost our next flight in chicago. thats what i dont like. wish this wont happen next time..

EWR
BTV
Excellent 10.0

All the effort to make my need for wheelchair problem free

MCO
EWR
Excellent 10.0

Excellent support from everyone as all were very helpful with assisting my need for wheel chair.

IAH
ATL
Good 7.6

The friendliness of the staff

Sitting on the plane due to a delay with the system

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.

Thu, Mar 8
IAH
SYD
17h 30m
Fri, Mar 16
SYD
IAH
15h 40m
$1150
Trip: 8 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 52353 reviews
Overall
7.2
Boarding
7.4
Comfort
6.9
Crew
7.7
Entertainment
6.5
Food
6.4
SLC
ORD
Good 6.0

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

EWR
CLT
Excellent 8.0

2 sear rows so no middle seat

Late departure

ATL
ORD
Excellent 8.0

The United pilot we flew that day. did great job. we arrive safe to the distination despite of the climate condition. im happy for the service.so far im satified..

the delayed flight this time almost cause us to lost our next flight in chicago. thats what i dont like. wish this wont happen next time..

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

Sun, Apr 1
IAH
SYD
17h 30m
Thu, Apr 5
SYD
IAH
15h 50m
$1150
Trip: 5 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 52353 reviews
Overall
7.2
Boarding
7.4
Comfort
6.9
Crew
7.7
Entertainment
6.5
Food
6.4
EWR
BTV
Excellent 10.0

All the effort to make my need for wheelchair problem free

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.

IAD
MUC
Good 6.3

Crew and food.

The old bait and switch. United is not and will never be Lufthansa. Cattle call seating.

EWR
CLT
Excellent 8.0

2 sear rows so no middle seat

Late departure

FLL
ORD
Excellent 8.0

no aisle seat

Thu, Jun 28
IAH
SYD
17h 30m
Sat, Jul 7
SYD
IAH
15h 50m
$1151
Trip: 10 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 52353 reviews
Overall
7.2
Boarding
7.4
Comfort
6.9
Crew
7.7
Entertainment
6.5
Food
6.4
MCO
EWR
Excellent 10.0

Excellent support from everyone as all were very helpful with assisting my need for wheel chair.

FLL
ORD
Excellent 8.0

no aisle seat

EWR
BTV
Excellent 10.0

All the effort to make my need for wheelchair problem free

IAD
MUC
Good 6.3

Crew and food.

The old bait and switch. United is not and will never be Lufthansa. Cattle call seating.

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.

Sat, Jun 30
IAH
SYD
17h 30m
Wed, Jul 11
SYD
IAH
15h 50m
$1151
Trip: 12 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 52353 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.

IAD
MUC
Good 6.3

Crew and food.

The old bait and switch. United is not and will never be Lufthansa. Cattle call seating.

SLC
ORD
Good 6.0

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

EWR
BTV
Excellent 10.0

All the effort to make my need for wheelchair problem free

EWR
CLT
Excellent 8.0

2 sear rows so no middle seat

Late departure

Sun, Dec 17
IAH
SYD
46h 21m
Tue, Jan 9
SYD
IAH
45h 20m
$1943
Trip: 24 days
Overall 0.0 Poor
Based on 0 reviews
Wed, Dec 20
IAH
SYD
26h 45m
Fri, Jan 5
SYD
IAH
19h 14m
$2495
Trip: 17 days
7.0GoodShow reviews
Overall 7.0 Good
Based on 52353 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.

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".

LAS
EWR
Excellent 8.0

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

IAH
ATL
Good 7.6

The friendliness of the staff

Sitting on the plane due to a delay with the system

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