$856 Find Cheap Flights from Houston to Sydney

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Houston to Sydney departing on 9/9. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
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KAYAK searches hundreds of travel sites at once for deals on flights to Sydney

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Houston to Sydney, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Houston to Sydney, as well as popular online travel agencies
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Cheap Flight Deals from Houston to Sydney

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for return flights from Houston to Sydney that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Recent return flight deals from Houston to Sydney

KAYAK's recommended return flight deals from the most popular airlines that fly from Houston to Sydney.
Discover the best prices for you by selecting your travel dates on KAYAK.
Choose your dates
10:00 - 07:20IAH-SYD
30h 20m2 stops
09:20 - 13:29SYD-IAH
43h 09m2 stops
$1,620Air Canada
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Wed, 3 Sep - Wed, 17 Sep
10:00 - 07:20IAH-SYD
30h 20m2 stops
09:20 - 18:43SYD-IAH
24h 23m1 stop
$1,657Air Canada
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Wed, 10 Sep - Wed, 24 Sep
20:27 - 22:10IAH-SYD
34h 43m2 stops
13:15 - 21:57SYD-IAH
23h 42m2 stops
$1,660Fiji Airways
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Tue, 29 Apr - Tue, 6 May
20:28 - 12:15IAH-SYD
24h 47m2 stops
13:15 - 20:04SYD-IAH
21h 49m2 stops
$1,673Fiji Airways
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Thu, 11 Sep - Thu, 18 Sep
21:55 - 08:45IAH-SYD
19h 50m1 stop
18:20 - 16:15SYD-IAH
36h 55m1 stop
$1,801Air New Zealand
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Tue, 26 Aug - Mon, 1 Sep
16:25 - 08:45IAH-SYD
25h 20m2 stops
18:20 - 16:15SYD-IAH
36h 55m1 stop
$1,809Air New Zealand
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Tue, 26 Aug - Mon, 1 Sep
19:44 - 07:05IAH-SYD
20h 21m1 stop
09:10 - 19:28SYD-IAH
25h 18m1 stop
$2,242Qantas Airways
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Mon, 26 May - Thu, 7 Aug
12:50 - 07:00IAH-SYD
27h 10m2 stops
09:30 - 20:48SYD-IAH
26h 18m2 stops
$2,334United Airlines
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Sun, 22 Jun - Sun, 29 Jun
11:55 - 06:55IAH-SYD
28h 00m2 stops
09:30 - 15:40SYD-IAH
21h 10m1 stop
$2,387United Airlines
Find Deal
Thu, 19 Jun - Sun, 29 Jun
19:46 - 07:05IAH-SYD
20h 19m1 stop
09:10 - 19:09SYD-IAH
24h 59m1 stop
$2,392Qantas Airways
Find Deal
Tue, 29 Apr - Tue, 6 May

KAYAK's insights & trends for Houston to Sydney flights

Get data-powered insights and trends into flights from Houston to Sydney to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest Houston to Sydney flight route?

The cheapest price for flight routes found by users searching on KAYAK in the last 2 weeks for round-trip flights from Houston to Sydney.
Our data shows that the cheapest route for a return flight from Houston to Sydney cost $3,342 and was between Houston George Bush Intcntl Airport (IAH) and Sydney (SYD). On average, the best prices are found if you fly this route. The average price for a return flight for this route is $3,342.

What’s the cheapest day of the week to fly from Houston to Sydney?

The average price of all round-trip flights from Houston to Sydney clicked on KAYAK for each day over the last 12 months.
If your flying dates are flexible, you should consider flying to Sydney on a Friday, as we generally find the cheapest rates on that day for this route. On the other hand, Sunday is the most expensive day to fly from Houston to Sydney. For your return ticket, we recommend flying on a Wednesday and avoiding Sundays for the best deals.

What is the cheapest month to fly from Houston to Sydney?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Houston to Sydney, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.
The cheapest month for flights from Houston to Sydney is April, where tickets cost $1,420 (return) on average. On the other hand, the most expensive months are December and October, where the average cost of round-trip tickets is $2,882 and $2,154 respectively.

How far in advance should I book a flight from Houston to Sydney?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Houston to Sydney, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.
To get a below average price on the flight from Houston to Sydney, you should book around 3 weeks before departure. For the absolute cheapest price, our data suggests you should book 7 weeks before departure.

Good to know

Cheapest flight

$856
Flight from Houston George Bush Airport to Sydney

When to book flights from Houston to Sydney

Are your dates flexible? Find out the best times to travel from Houston to Sydney based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or returns with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Houston to Sydney

  • What is the cheapest flight from Houston to Sydney?

    In the last 3 days, the lowest price for a flight from Houston to Sydney was $536 for a one-way ticket and $1,014 for a return.

  • Which airports will I be using when flying from Houston to Sydney?

    On your way to Sydney, you’ll fly out from one of these Houston airports: Houston Hobby or Houston George Bush Intcntl. You’ll be landing at Sydney Kingsford Smith.

  • Which aircraft models fly most regularly from Houston to Sydney?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Houston to Sydney?

    oneworld, Star Alliance, and SkyTeam are the airline alliances operating flights between Houston and Sydney, with Star Alliance being the most commonly used for this route.

  • How does KAYAK find such low prices on flights from Houston to Sydney?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Houston to Sydney.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Houston to Sydney?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Sydney from Houston is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Houston to Sydney?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional return ticket. You could then fly to Sydney with an airline and back to Houston with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Houston to Sydney?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Sydney from Houston up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top airlines flying from Houston to Sydney

 
See real verified KAYAK customer reviews for airlines flying from Houston to Sydney. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Houston to Sydney? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.5
Qantas AirwaysOverall score based on 813 reviews
7.6Boarding
8.1Crew
6.9Food
7.4Comfort
7.2Entertainment
Airline reviews

I liked the service, the menu, and the comfort of the seats! Even tho we were seated by the bathrooms, the reclining seats and movie selection was very good, my husband and I didn’t mind at all

10.0 Excellentanna, Mar 2025AKL - SYD
Read more Qantas Airways reviews

I liked the service, the menu, and the comfort of the seats! Even tho we were seated by the bathrooms, the reclining seats and movie selection was very good, my husband and I didn’t mind at all

Very good as always, stand out airline. The passengers whom choose to stuff baggage that otherwise should be checked-in is a real bother but that's not the airlines doing. A real frustration that passengers just don't want to check-in luggage. This is a pet hate unfortunately.

It’s a two prop flight so I had problems with my ears on re- entering ! But otherwise fine

I love flying with Qantas. There was no onscreen entertaining on this flight, and only a snack provided (not a meal) but still better than Jetstar or Virgin (in my opinion) so still happy.

The food was terrible. And the flight attendants were very rude. One flight attendant wouldn’t help a passenger lift their carry-on. Another flight attendant wouldn’t give a man an extra blanket. And they walked by not even looking at the passengers to see if they needed a glass of water.

Wheelchair assistance to move through the terminals and to/from the plane door was excellent. No vegan snack on the flight, only something with salami and cheese in it.

I have flown Qantas multiple times in the past it seemed this flight the plane had less seat room or the seats were way less comfortable than before. Everything else was about the same. Thanks

The old Plane had not been cleaned properly in a long time.

I got upgraded from economy to business, and the experience was outstanding

Boarding was over 3 hrs late and we didn’t land until almost 1:30am

We boarded but then sat there waiting on some missed connection people to get on so we sat for about 15 minutes for that. Then we sat again because the passenger manifest was wrong and they had to figure it out before we could leave. That took about another 20 minutes or so. The crew was working hard to figure it out so it’s not their fault. It ended up being a system glitch where someone was upgraded to first class while another person was also in the same seat and it just created a mess that took a little while to figure out. They literally went to every person on the plane asking their names to see who was sitting in the wrong seat. I also hate the entertainment that must be watched on your phone or tablet. Just give us setback screens. It’s so much better. Almost every Delta flight has this now and it is so nice to have them. The crew did a great job. I have no complaints from them. They were very hard working, even with the mishap and a disgruntled passenger.

My priority checked bag was not loaded on the flight. I had to sit in baggage claim in Las Vegas for 2 1/2 hours waiting for the next flight. All baggage staff were very helpful, tracking showed it as scanned for loading. Nobody told me why it wasn't on my flight.

All male crew was just too woke for me. I felt like a sardine. I will never take a window seat or the rearmost seat again. I booked early and did not pay for seat selection and that was a mistake. The security at IAH was atrocious. I was violated and radiated as I was in a hurry to connect to my other flight. I may have lost items under the seat in front of me that I couldn't see nor bend over to look.

It’s been awhile since I have traveled on United. I, along with my family who were on the flight noted how smoothly everything went . Boarding, flight crew and service was excellent.

Smooth flight. As always dinner could have been more generous. Breakfast was great.

In general ok, my only issue is that they had no hot items for purchase. I had very little time in my connection due to baggage/customs/TSA, thag I barely even had a chance for a stop at the washroom and buy water, to make it to my gate when they started boarding. I had nothing to eat because the trip started early, so I was ready to purchase, and they had nothing except for dry items like snacks. I had to purchase a mediocre, overpriced cheese and fruit board, instead of at least a pizza or sliders that I was planning on getting. Other than that, it was fine. But that’s typical Air Canada, to not have enough.

How badly can you screw up baggage claim? We were told to go to baggage claim too for our bags from this flight. Another flights bags were there. They finished up. More bags from a different flight arrived. Our bags did not Finally the baggage claim belt stopped working and and are flight was still listed on the arrivals for that baggage claim 2. And then nothing It turns out that they had been delivered not only the United baggage claim but far away on a Delta baggage claim No I never told us. It was only the people looking around who had been on the flight But I’m sure there was plenty of time for the employees to raffle through the bags and steal whatever they wanted

Long wait before take off without an update for 20 minutes. Flight was good otherwise.

Flight delayed over 2 hours . I was flying bussiness never got food cause they ran out of what i wanted

Flight was great my baggage was on time everywhere but my bags had been handled ruff cause they got damaged.

Everything you need to know for your flight from Houston to Sydney

Information on your arrival and departure airports

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