SYD

$480 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 4/21. 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.
1 adult
1 adult, Economy, 0 bags

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.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Houston to Sydney.
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Everything you should know

Cheapest round-trip
$878
Typical prices: $1,146-$1,661
American Airlines
Sun 4/19Tue 5/5
IAH - SYD • 1 stop
Cheapest one-way
$438
Typical prices: $605-$864
Multiple Airlines
Tue 4/21
IAH - SYD • 2 stops
Advice from real travelers
AI-powered summary based on content written by travel experts. AI can make mistakes.
IAH offers free Wi-Fi across all terminals.
Take the Airport Link train for quick access to Sydney.
Expert advice
Expert advice
Expert advice
Expert advice
Top airlines
Cheapest • from $878 (round-trip)
Best reviews • 8.1 score
Airline reviews
Airline reviews
+1
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Airline reviews
Airline reviews
+1
Top routes
Cheapest
Most popular
Insights
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When to book
in advance
Our data shows that travelers who book at least 3 weeks in advance save around 19% compared to booking last minute.
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Flight Deals

Cheap Flights from Houston to Sydney

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip 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.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Houston to Sydney

Sun, Apr 19 - Tue, May 5
American Airlines Logo
7:41 pm - 7:05 am
IAH
-
SYD
20h 24m
1 stop
American Airlines Logo
9:10 am - 3:51 pm
SYD
-
IAH
21h 41m
2 stops
$878American Airlines
Wed, Jul 29 - Wed, Aug 26
American Airlines Logo
8:09 pm - 7:05 am
IAH
-
SYD
19h 56m
1 stop
American Airlines Logo
9:10 am - 8:00 pm
SYD
-
IAH
25h 50m
1 stop
$896American Airlines
Mon, Aug 3 - Mon, Aug 17
American Airlines Logo
4:15 pm - 7:05 am
HOU
-
SYD
23h 50m
2 stops
American Airlines Logo
9:10 am - 5:52 pm
SYD
-
HOU
23h 42m
2 stops
$900American Airlines
Wed, Jul 29 - Wed, Aug 26
American Airlines Logo
2:04 pm - 7:05 am
IAH
-
SYD
26h 01m
2 stops
American Airlines Logo
9:10 am - 3:24 pm
SYD
-
IAH
21h 14m
2 stops
$900American Airlines
Sun, Apr 19 - Tue, May 5
Multiple Airlines Logo
7:41 pm - 7:05 am
IAH
-
SYD
20h 24m
1 stop
Multiple Airlines Logo
9:10 am - 7:11 pm
SYD
-
IAH
25h 01m
1 stop
$908Multiple Airlines
Wed, Jun 10 - Wed, Jun 24
Qantas Airways Logo
8:12 pm - 7:05 am
IAH
-
SYD
19h 53m
1 stop
Qantas Airways Logo
9:10 am - 7:42 pm
SYD
-
IAH
25h 32m
1 stop
$919Qantas Airways
Tue, Apr 14 - Tue, Apr 21
Qantas Airways Logo
7:41 pm - 7:30 am
IAH
-
SYD
20h 49m
1 stop
Qantas Airways Logo
9:10 am - 7:11 pm
SYD
-
IAH
25h 01m
1 stop
$920Qantas Airways
Sun, Apr 19 - Tue, May 5
Multiple Airlines Logo
7:41 pm - 7:05 am
IAH
-
SYD
20h 24m
1 stop
Multiple Airlines Logo
9:10 am - 7:11 pm
SYD
-
IAH
25h 01m
1 stop
$922Multiple Airlines
Mon, Apr 13 - Sun, May 17
Qantas Airways Logo
7:41 pm - 7:30 am
IAH
-
SYD
20h 49m
1 stop
Qantas Airways Logo
5:50 pm - 7:11 pm
SYD
-
IAH
40h 21m
1 stop
$931Qantas Airways
Sun, Apr 19 - Tue, May 12
Qantas Airways Logo
7:41 pm - 7:05 am
IAH
-
SYD
20h 24m
1 stop
Qantas Airways Logo
9:10 am - 7:11 pm
SYD
-
IAH
25h 01m
1 stop
$932Qantas Airways
Booking Insights

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.

How much is a round-trip flight from Houston to Sydney?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Houston to Sydney departing in April.

What is the cheapest Houston to Sydney flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest return flight from Houston to Sydney costs $1,468 on the route between Houston George Bush Intcntl Airport (IAH) and Sydney (SYD). It is also the most popular route.

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 Monday, as we generally find the cheapest rates on that day for this route. On the other hand, Saturday is the most expensive day to fly from Houston to Sydney. For your return ticket, we recommend flying on a Monday and avoiding Fridays 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 October, where tickets cost $1,041 (return) on average. On the other hand, the most expensive months are January and April, where the average cost of round-trip tickets is $1,750 and $1,744 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, which saves you about 19% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 20 weeks before departure.

Expert advice

Expert advice for your flight from Houston to Sydney

 
AI-powered summary based on content written by travel experts. AI can make mistakes.
KAYAK teamed up with top travel experts to share the best tips for your journey.
Our travel experts
John Walton

John Walton

Expert on IAH

Independent aviation journalist John Walton took his first flight at eight weeks old and hasn’t stopped travelling since. A world-renowned expert in airlines and the passenger experience, he writes in depth on aviation, is a resident expert on travel in Japan and France, and offers a uniquely queer perspective on travelling the world.

Robert Schrader

Robert Schrader

Expert on SYD

One of the web's original travel bloggers, Robert launched his first site Leave Your Daily Hell in 2009. Since then, he's expanded into destination niche sites (one each for Japan, Thailand and Taiwan), in addition to having written for the inflight magazines of Singapore Airlines and Korean Air. Overall, he's visited nearly 100 countries, and flies business as often as possible.

Good to know

Cheapest flight$438
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 round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips 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 $438 for a one-way ticket and $878 for a round-trip.

  • Do I need a passport to fly between Houston and Sydney?

    Yes, you'll most likely have to show a valid passport before boarding the plane in Houston and on arrival in Sydney.

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

    Houston has 2 major airports: Houston Hobby and Houston George Bush Intcntl. Sydney Kingsford Smith is the only airport in Sydney. You’ll usually find the cheapest deals if you fly from Houston George Bush Airport.

  • 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?

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

  • What is the most popular layover when flying to Sydney from Houston?

    Los Angeles is the most popular layover city among KAYAK users traveling from Houston to Sydney.

  • 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 round-trip 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.

Reviews of the top 5 airlines serving 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.
8.1
Fiji AirwaysOverall score based on 233 reviews
8.5Crew
7.5Entertainment
8.2Boarding
7.5Food
8.1Comfort
Airline reviews

Left on time , arrived on time. Staff was awesome!!!!! Great flight!!!!

10.0 ExcellentNick, Mar 2026
NAN - LAX
Read more Fiji Airways reviews

Left on time , arrived on time. Staff was awesome!!!!! Great flight!!!!

Great food, wonderful staff made a long flight seem short

Everything was great . Arrived on time was smooth plane was clean. Crew/Staff was friendly and helpful.

Everything from the staff to the comfort of business class was excellent. This is one of my new favorite airlines.

Ticketing said dinner for the almost 14 hour flight and we were delayed an hour. However, onboard we were only served a sluce if pizza bread and a cookie. Not at all dinner and insufficient for a long international flight. Breakfast was good.

We have had an absolutely horrific experience so far getting home from Australia on a $18,000 + flight we booked with you. The flight did not deplane in Dallas because there was no available gate or staircase. We sat in the plane for 3 hours waiting to deplane. As a result we missed our connecting flight to New York. American Airlines put us up in a hotel several miles away. We waited 45 minutes for a shuttle and The shuttle driver was horribly rude and unhelpful. They offered us $70 vouchers for food but actually there was no food left when we arrived minus some chicken nuggets and corn dogs. It was awful. Horrible way to end a vacation. There has to be accountability here.

A bit cramped in economy and the people in front wouldn’t put their seats up during meal service, crew did not help with that and I felt they could have done more about it.

The airline is ok, but it needs to improve it schedules.

Again, Fijian hospitality was genuine, very comfortable, only improvement would be the entertainment. Why Do they only have 5 episodes of TV shows and from like season three...

Fiji Airways was amazing, will definately be lfying them again. The "Fijian hospitality" is not a catch phrase, it is genuine. the only things that could be improved is the entertainment. Not a great choice of movies, and the TV shows only have about 5 or so episodes, and often of a random season.

Appreciated the ability to get an earlier flight home after flying in from in from Japan. No problem with boarding or crew service. The limited choice of snacks, compared to previous years. Aircraft seats seem to be getting harder and more uncomfortable all the time. Overall, happy to be home

Wonderful trip. Everyone from checking in to the gate to the flight itself was amazing - kind, helpful, and has a beautiful smile.

This flight was the second leg of a trip that began in Auckland, New Zealand. I was unable to find a way to select seats in advance. The boarding passes we were given in Auckland did not have seat assignments for the second flight. There was no way to check on it until personnel showed up at the gate in Los Angeles, immediately before boarding time. The flight was overbooked by one, and since I was traveling with my sister, we needed two seats. We waited in considerable anxiety for everyone else to board and when one person did not show up, we had to take whatever was left. At least we finally got on the flight although we were the very last to board. We were not able to sit together, of course.

The seats are feeling very hard to sit on. All the padding is flat, like sitting on a park bench for over an hour

We had difficulty checking in as United didn’t recognize the confirmation number and the agent was not helpful. We went to the United Assistance desk where the agent was able to process our reservation. We also weren’t allowed to choose seats in advance.

Space between seats on Air New Zealand is generally tight. The crew on this flight was excellent! Very attentive and nice. You get free wine or beer and chips and of course the Air New Zealand candies. 1 hour and 35 min flight approximately.

Air New Zealand over sold our flight and tried to bump us to yesterday. After several calls we got booked to United about 6 hrs before our original flight. No apologies!

Very quick flight so no time for refreshments. We took off. Then landed. The end. Seats were too tight. Very cramped Grateful for the short flight cos moving around wasn’t possible

The disembarking steps in Wellington were precarious and I felt quite insecure. There was no one on the tarmac to greet us and help. The embarking ramp in Blenheim was much more satisfactory. The rest of the flight was fine.

Entertainment screen froze and had to be reset. Noticed it happened to other passengers as well.

Our boarding and flight was very good. However when we landed and pulled in to the gate it took 55 minutes for the jet bridge to be positioned next to the aircraft. That caused us to miss our ground transportation and it caused us unnecessary last minute transit planning and expense. Our flight was AA1733 on March 17, 2026

My experience was great overall. Tanya was particularly friendly and helpful the entire trip. I was very pleased with her customer service skills. The plane was an older aircraft but the entire way was comfortable with barely any turbulence at all. Qantas should speed up its fleet renovation. Totally recommend using this airline.

Qantas is always subpar beyond comfy chairs for a domestic flight

I liked boarding the plane. The staff were rude, the food was appalling and the chairs the most uncomfortable I have ever experienced

an hour late, then had to disembark on back stairs and take 4 flights up to get to main airport. No warning, and difficulty for those with canes and poor knees.

Well my expórtenle with Qantas it wasn’t that good KLM from Bs Aires was delay Santiago Chile Qantas QF 028 was still in the airport but the crew didn’t opened the door for me soo I lost my fly And I stuck in the airport 13 hrs waiting for next fly by Latam Arline My question is can I have my money back for business class

It was ok, the additional baggage charges were a bit excessive given winter is a time for skiing. To have to pay $600 extra for skis was tantamount to robbery. Airlines should consider sporting goods as baggage. Likewise, they should consider increasing the number of bags allowed on international flights to known ski destinations.

Couldn't access entertainment on app as said in an email

A few more inches of legroom is all i ask

One of the best Qantas business flights I've had. Quality product

Terrible because it was cancelled due to volcanic ash clouds in Guatemala while all other airlines kept flying. Had to pay for a hotel to stay overnight in Houston and try to fly next day.

Overall we had a good experience during our flight from San Francisco to Houston.

Airport terminal was outdated, flight was on a small jet with no wifi

The crew made our experience extremely bad. They were rude and didn’t have anything for kids.

The power at the seat didn't work and the seat itself was difficult to adjust - this was a business class seat. Flight attendant gave me miles to compensate. The attendant was very professional and on top of his game the entire flight.

Terrible. Our first time back on United for 10 years, the seats in Polaris class are small and uncomfortable. They have squished too many people in to get more $$$. The staff are not friendly and not wanting to accommodate. I asked for two salads rather than a main meal and was advised no we wont do that. Then asked what I would like for breakfast and given something else anyway. I will not be flying United International anytime soon.

Food should be changed in menu Many muslims travels in this airlime they need to add one Halal meal

I like flying first class, and United has a nice one

Unbelievably poor service from flight attendants. They didn’t even do water service on a four hour flight. Just disrespectful.

Seats had less pitch than a regional jet. Food was OK. Have to buy alcohol on US based carriers flying international. Boarding was a mess. Did not have bags but overhead space was gone quick. Would like to see the airlines enforce the one bag over and one bag under policy

As a first class customer, there was no power the entire flight which limited my ability to work. I find this unacceptable. The first 11 rows on the left side of the plan were out. I was only offered the option to charge my phone which was not the issue because my laptop was out of power. I asked if there was anything that can be done for me, and the answer was, "no". I was not offered any type of compensation for this AA problem which caused me unnecessary stress due to inability to address business issues on an already challenging travel day. Flight attendants tried to reset the power once but that was the extent of their support. Very disappointing for the lack of expected services on a flight. Please contact me with customer focused response to this complaint.

Easy boarding. Rows are smaller but that may be an older and bigger me now :)

Check in was rough because the check in crew did not know how to manage my international visa documents. Required a long process and 4 people to finally be able to proceed to security. They told us incorrect information several times before acknowledging we did indeed have everything we needed from the start.

Poor communication ahead of time about flight delays and old planes/other equipment.

Mechanical issue delayed us 2hrs and then once we landed sat on tarmac for 30mins because someone left a vehicle in front of the gaye

The crew was excellent and overall the flight was good. No complaints.

Like all of the flights I took to get down to Dallas. They were delayed

Forced to check bags. Crew uninterested in collecting trash. Unclean seats.

Flight pulled out on time but sat on runway for 30 mins. It was extremely cold in the aircraft despite wearing a winter coat. Surprisingly they had a vegetarian meal but could have some better snack choices for a 8 hour flight.

We had a male flight attendant who was super attentive and wonderful! Very professional. I have both gluten and dairy intolerance, and was only able to get a gluten free part, and not the dairy free part of the meal. Easy to order ahead of time and I appreciate being able to do that.

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

Information on your arrival and departure airports