CA $728 Cheap Flights from Houston (IAH) to Sydney (SYD)

View CA $728 flight on Tue, May 12, 2026Opens in a new window

Popular airlines from George Bush Intercontinental Airport (IAH) to Sydney Airport (SYD)

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Cheap flights from Houston (IAH) to Sydney (SYD)

Prices were available within the past 7 days and start at CA $728 for one-way flights and CA $1,358 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Tue, May 12 - Tue, May 19
IAH
Houston
SYD
Sydney
CA $1,358 Roundtrip, found 16 hours ago
CA $1,358
Roundtrip
found 16 hours ago
Select American Airlines flight, departing Tue, May 12 from Houston to Sydney, returning Tue, May 19, priced at CA $1,358 found 16 hours ago
American Airlines
Tue, May 12 - Tue, May 19
IAH
Houston
SYD
Sydney
CA $1,630 Roundtrip, found 16 hours ago
CA $1,630
Roundtrip
found 16 hours ago
Select American Airlines flight, departing Tue, May 12 from Houston to Sydney, returning Tue, May 19, priced at CA $1,630 found 16 hours ago
American Airlines
Tue, May 12 - Sun, May 17
IAH
Houston
SYD
Sydney
CA $1,631 Roundtrip, found 16 hours ago
CA $1,631
Roundtrip
found 16 hours ago
Select American Airlines flight, departing Tue, May 12 from Houston to Sydney, returning Sun, May 17, priced at CA $1,631 found 16 hours ago
American Airlines
Tue, May 12 - Sat, May 16
IAH
Houston
SYD
Sydney
CA $1,699 Roundtrip, found 16 hours ago
CA $1,699
Roundtrip
found 16 hours ago
Select American Airlines flight, departing Tue, May 12 from Houston to Sydney, returning Sat, May 16, priced at CA $1,699 found 16 hours ago
American Airlines
Thu, May 14 - Thu, May 21
IAH
Houston
SYD
Sydney
CA $1,767 Roundtrip, found 16 hours ago
CA $1,767
Roundtrip
found 16 hours ago
Select American Airlines flight, departing Thu, May 14 from Houston to Sydney, returning Thu, May 21, priced at CA $1,767 found 16 hours ago
Air New Zealand
Mon, Jun 22 - Sun, Jul 5
IAH
Houston
SYD
Sydney
CA $2,130 Roundtrip, found 5 days ago
CA $2,130
Roundtrip
found 5 days ago
Select Air New Zealand flight, departing Mon, Jun 22 from Houston to Sydney, returning Sun, Jul 5, priced at CA $2,130 found 5 days ago
Air New Zealand
Mon, Jun 22 - Tue, Jul 7
IAH
Houston
SYD
Sydney
CA $2,146 Roundtrip, found 2 days ago
CA $2,146
Roundtrip
found 2 days ago
Select Air New Zealand flight, departing Mon, Jun 22 from Houston to Sydney, returning Tue, Jul 7, priced at CA $2,146 found 2 days ago
Turkish Airlines
Mon, May 11 - Tue, May 19
IAH
Houston
SYD
Sydney
CA $2,321 Roundtrip, found 16 hours ago
CA $2,321
Roundtrip
found 16 hours ago
Select Turkish Airlines flight, departing Mon, May 11 from Houston to Sydney, returning Tue, May 19, priced at CA $2,321 found 16 hours ago
All Nippon Airways
Thu, Nov 5 - Mon, Nov 16
IAH
Houston
SYD
Sydney
CA $2,441 Roundtrip, found 3 days ago
CA $2,441
Roundtrip
found 3 days ago
Select All Nippon Airways flight, departing Thu, Nov 5 from Houston to Sydney, returning Mon, Nov 16, priced at CA $2,441 found 3 days ago
United
Fri, Nov 20 - Sun, Nov 29
IAH
Houston
SYD
Sydney
CA $2,586 Roundtrip, found 3 days ago
CA $2,586
Roundtrip
found 3 days ago
Select United flight, departing Fri, Nov 20 from Houston to Sydney, returning Sun, Nov 29, priced at CA $2,586 found 3 days ago

Alternative airports near Sydney

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Kingsford Smith Intl. SYD. Cheapest option available. Average driving time to city centre is 16 minutes. Flights from CA $2,565
SYD
Kingsford Smith Intl.
Cheapest
Average driving time to city centre16 min
Flights from CA $2,565

Frequently asked questions

What is the cheapest month to fly from Houston, TX (IAH-George Bush Intercontinental) to Sydney, NSW (SYD-Kingsford Smith Intl.)?
February is typically the cheapest month to fly from Houston, TX (IAH-George Bush Intercontinental) to Sydney, NSW (SYD-Kingsford Smith Intl.), with average round-trip fares of approximately 2795 CAD. This is about 22% lower than the average price throughout the year. February often sees lower prices as it's outside of peak holiday seasons, leading to reduced demand. Other cheap months to fly from Houston, TX (IAH-George Bush Intercontinental) to Sydney, NSW (SYD-Kingsford Smith Intl.) include March and November.*Averages based on flights available on Expedia in the last year.
How do I find cheap flights from Houston, TX (IAH-George Bush Intercontinental) to Sydney, NSW (SYD-Kingsford Smith Intl.)?
To find a cheap flight from Houston, TX (IAH-George Bush Intercontinental) to Sydney, NSW (SYD-Kingsford Smith Intl.), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best airline to fly with from Houston, TX (IAH-George Bush Intercontinental) to Sydney, NSW (SYD-Kingsford Smith Intl.)?
The best airline to fly with from Houston, TX (IAH-George Bush Intercontinental) to Sydney, NSW (SYD-Kingsford Smith Intl.) will differ from traveler to traveler. If you like to fly early, UA offers early morning flights. If price is the most important factor, UA typically offers the lowest fares. UA offers the most daily flights from Houston, TX (IAH-George Bush Intercontinental) to Sydney, NSW (SYD-Kingsford Smith Intl.), which is great if flexibility is what you value most. The best carrier for this journey could also be the one you have a loyalty membership with, as flying with that airline or another airline within the same alliance could help you collect points or enjoy lounge access.
What is the best time to fly from Houston, TX (IAH-George Bush Intercontinental) to Sydney, NSW (SYD-Kingsford Smith Intl.)?
Based on booking data from the past year, the cheapest months to fly from Houston, TX (IAH-George Bush Intercontinental) to Sydney, NSW (SYD-Kingsford Smith Intl.) are typically February and March, with average round-trip flights around 2795 CAD. While these months offer the best value, you'll want to consider that they fall during Australia's late summer/early autumn, which can still be a popular time for travel, meaning you should still find plenty of flight options.*Prices based on flights available on Expedia in the last year.
How many flights per day from Houston, TX (IAH-George Bush Intercontinental) to Sydney, NSW (SYD-Kingsford Smith Intl.)?
There are approximately 74 connecting flights per day from Houston, TX (IAH-George Bush Intercontinental) to Sydney, NSW (SYD-Kingsford Smith Intl.). Some common connection points include Los Angeles Intl. (LAX), Dallas-Fort Worth Intl. (DFW), and San Francisco Intl. (SFO).
What is the earliest flight from Houston, TX (IAH-George Bush Intercontinental) to Sydney, NSW (SYD-Kingsford Smith Intl.)?
The earliest flight from Houston, TX (IAH-George Bush Intercontinental) to Sydney, NSW (SYD-Kingsford Smith Intl.) typically departs at approximately 1:10 AM local time. This service is seasonal, active only in May, and is operated by BR and GA. An early departure like this can help maximize your time at your destination. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What day of the week has the most flights from Houston, TX (IAH-George Bush Intercontinental) to Sydney, NSW (SYD-Kingsford Smith Intl.)?
You'll typically find the most flights from Houston, TX (IAH-George Bush Intercontinental) to Sydney, NSW (SYD-Kingsford Smith Intl.) on a Thursday, with around 61 flights available. This gives you plenty of options for your travel plans. Major airlines on this route include United Airlines, American Airlines, and Delta Air Lines. Compared to other days, Thursdays offer notably more flight options.
What are the most popular departure times for flights from Houston, TX (IAH-George Bush Intercontinental) to Sydney, NSW (SYD-Kingsford Smith Intl.)?
The most popular departure times for flights from Houston, TX (IAH-George Bush Intercontinental) to Sydney, NSW (SYD-Kingsford Smith Intl.) are in the evening, from 6pm to 9pm. About 30% of passengers prefer this time. Many major carriers, including United Airlines, American Airlines and Qantas, offer flights during this window. This timing works well because it allows you to finish your day in Houston before your flight, and you'll arrive in Sydney ready to start your adventure.
How long does it take to fly from Houston, TX (IAH-George Bush Intercontinental) to Sydney, NSW (SYD-Kingsford Smith Intl.)?
Direct flights from IAH to SYD usually take about 17 hours 30 minutes, traveling roughly 8,598 miles. If you opt for a connecting flight, expect to add around 2 hours 50 minutes to your journey. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Houston, TX (IAH-George Bush Intercontinental) to Sydney, NSW (SYD-Kingsford Smith Intl.)?
Select the "Business class" and "First class" filters when looking for IAH to SYD flights on Expedia. This is the easiest way to compare prices, routes and flight times for your trip.
How do I earn miles on a Houston, TX (IAH-George Bush Intercontinental) to Sydney, NSW (SYD-Kingsford Smith Intl.) flight with Expedia?
It's easy to earn miles on a Houston, TX (IAH-George Bush Intercontinental) to Sydney, NSW (SYD-Kingsford Smith Intl.) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Sydney from George Bush Intercontinental (IAH)?
If you're planning to travel to Sydney from George Bush Intercontinental (IAH), you can fly into Kingsford Smith Intl. (SYD) Some flights may connect through major hubs like Dallas-Fort Worth Intl. (DFW), Los Angeles Intl. (LAX), O'Hare Intl. (ORD) before reaching Sydney. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Houston, TX (IAH-George Bush Intercontinental) to Sydney, NSW (SYD-Kingsford Smith Intl.) at the last minute?
Typically, booking a last minute flight from Houston, TX (IAH-George Bush Intercontinental) to Sydney, NSW (SYD-Kingsford Smith Intl.) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Houston, TX (IAH-George Bush Intercontinental) to Sydney, NSW (SYD-Kingsford Smith Intl.) flight and hotel package?
Securing a Houston, TX (IAH-George Bush Intercontinental) to Sydney, NSW (SYD-Kingsford Smith Intl.) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Houston, TX (IAH-George Bush Intercontinental) to Sydney, NSW (SYD-Kingsford Smith Intl.)?
If you booked your Houston, TX (IAH-George Bush Intercontinental) to Sydney, NSW (SYD-Kingsford Smith Intl.) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
George Bush Intercontinental
Destination airport
Kingsford Smith Intl.
Airlines serving
Air Canada, Air New Zealand, American Airlines, British Airways, Delta, Emirates, Qantas Airways, Qatar Airways, Turkish Airlines, United
Roundtrip price
CA $1,358
Distance
13755 km

Book with confidence

Houston to Sydney Flights

The easy way to book your flights from Houston to Sydney 

With Expedia, it’s simple to find and book flights to Sydney from Houston whether you’re traveling for business or pleasure. Enter your travel dates, hit search, and choose your flight from 20 airlines that cover this route. There are nonstop flights to Kingsford Smith Intl., too.  

Choose your preferred carrier and cabin class with the advanced search tool and select your ideal departure time. Then, if you want, you can see just nonstop or refundable flights. And if you’re traveling last minute, just enter the date to check out flights from Houston to Sydney today, tomorrow, or this week.  

 

Save dollars with cheap flights from George Bush Intercontinental, IAH to Kingsford Smith Intl., SYD 

Sort your search results by price to find great deals on your flight from Houston to Sydney—you get all your cheapest options first. Grab yourself a bargain now—the lowest price on flights to Sydney from Houston currently is just CA $1,358 rising to CA $2,586.  

Here are more money-saving tips: 

  • Fly in May when flight prices are normally at their lowest 
  • Book about a month to 6 weeks before you travel for the best prices to Sydney  
  • Avoid peak season and weekends when flights can cost more
  • Early morning and late-night flights are sometimes cheaper, so try varying your travel times 
  • One surefire way to save money on your flight is to book your flight and hotel together with Expedia. Sometimes, the savings are so large that the flight is basically free! 

 

Reasons to choose Expedia for your flight to Sydney from Houston 

Whatever your destination, budget, or reason to travel, in just one quick search, you can choose from loads of flights, airlines, and cabin classes. The filters make it quick and easy to find your ideal flights, and if you choose one of the flexible options, you won’t be charged to change your flight. So book your flight to Sydney with Expedia today.

Houston to Sydney Flights

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