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$177+ Cheap flights from Houston

This is the cheapest return flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 23/1. 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.
HOU — SYD
28 Jan — 4 Feb1
1 adult
1 adult, Economy, 0 bags

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Enter your travel dates to find the best prices.

Cheapest flights from Houston
Explore the most affordable flight options available from Houston. Find the lowest fares based on data from user searches, with prices last updated on 29 December 2025.

Tue 27/116:13IAH - SYD
2 stops27h 22mMultiple Airlines
Tue 3/206:00SYD - IAH
2 stops35h 19mMultiple Airlines
Deal found 28/12$1,208
Wed 28/116:13IAH - SYD
2 stops36h 52mMultiple Airlines
Wed 4/214:00SYD - IAH
2 stops27h 19mMultiple Airlines
Deal found 29/12$1,210
Wed 28/116:13IAH - SYD
2 stops36h 52mMultiple Airlines
Sun 1/214:00SYD - IAH
2 stops27h 19mMultiple Airlines
Deal found 27/12$1,228
Sun 25/116:13IAH - SYD
2 stops27h 22mMultiple Airlines
Sun 1/214:00SYD - IAH
2 stops27h 19mMultiple Airlines
Deal found 28/12$1,263
Fri 20/216:34IAH - MEL
1 stop23h 56mMultiple Airlines
Tue 3/306:45MEL - IAH
2 stops34h 45mMultiple Airlines
Deal found 29/12$1,265
Sun 15/216:34IAH - SYD
2 stops27h 01mMultiple Airlines
Sun 1/314:00SYD - IAH
2 stops27h 30mMultiple Airlines
Deal found 27/12$1,277
Tue 3/217:25IAH - BNE
1 stop23h 20mAir Canada
Tue 17/210:45BNE - IAH
2 stops42h 49mAir Canada
Deal found 27/12$1,391
Mon 9/214:26IAH - BNE
2 stops50h 19mAir Canada
Wed 25/210:45BNE - IAH
1 stop21h 39mAir Canada
Deal found 28/12$1,414
Fri 13/216:34IAH - SYD
2 stops27h 01mMultiple Airlines
Fri 20/206:00SYD - IAH
2 stops35h 30mMultiple Airlines
Deal found 27/12$1,438
Thu 9/416:32IAH - BNE
2 stops47h 33mAir Canada
Tue 21/410:00BNE - IAH
2 stops42h 34mAir Canada
Deal found 28/12$1,445
Tue 3/216:13IAH - SYD
1 stop23h 47mMultiple Airlines
Tue 10/211:20SYD - IAH
1 stop29h 59mMultiple Airlines
Deal found 26/12$1,464
Tue 17/318:02IAH - SYD
1 stop22h 58mMultiple Airlines
Tue 7/409:10SYD - IAH
1 stop25h 08mMultiple Airlines
Deal found 27/12$1,470

Find flights from Houston within your budget

 
Find flights departing from Houston that match your specified budget. Filter results by price range, allowing you to narrow down options and find flights that fit within your financial constraints. Please note that the search results are based on data from user searches, with fares last updated on 29 December 2025. In the last 7 days, Cheapflights users made a total of 647,157 searches

Fly to

Sydney

Route

Depart

Return

Price

HoustonBrisbane

IAH - BNE

IAHBNE

Houston George Bush Intcntl

Mon 9/2

09:36-08:45

2 stops31h 09m

Brisbane

Wed 25/2

10:45-16:24

1 stop21h 39m

$1,426

HoustonBrisbane

IAH - BNE

IAHBNE

Houston George Bush Intcntl

Tue 3/2

09:36-08:45

2 stops31h 09m

Brisbane

Tue 17/2

06:35-21:44

3 stops31h 09m

$1,469

HoustonBrisbane

IAH - BNE

IAHBNE

Houston George Bush Intcntl

Thu 9/4

16:32-07:05

2 stops47h 33m

Brisbane

Tue 21/4

10:00-16:24

1 stop21h 24m

$1,479

HoustonBrisbane

IAH - BNE

IAHBNE

Houston George Bush Intcntl

Wed 18/2

17:25-08:45

1 stop23h 20m

Brisbane

Thu 12/3

09:45-16:24

1 stop21h 39m

$1,490

HoustonBrisbane

IAH - BNE

IAHBNE

Houston George Bush Intcntl

Tue 24/2

17:25-08:45

1 stop23h 20m

Brisbane

Sat 28/2

10:45-16:24

1 stop21h 39m

$1,634

HoustonBrisbane

IAH - BNE

IAHBNE

Houston George Bush Intcntl

Thu 12/2

12:10-08:45

2 stops52h 35m

Brisbane

Mon 16/2

10:45-16:24

1 stop21h 39m

$1,638

HoustonMelbourne

IAH - MEL

IAHMEL

Houston George Bush Intcntl

Wed 25/2

20:05-10:55

1 stop21h 50m

Melbourne

Wed 4/3

12:10-14:05

1 stop18h 55m

$1,674

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Fri 20/2

15:02-08:45

2 stops24h 43m

Sydney Kingsford Smith

Sun 8/3

13:55-21:31

2 stops24h 36m

$1,676

HoustonMelbourne

IAH - MEL

IAHMEL

Houston George Bush Intcntl

Wed 11/2

20:05-10:55

1 stop21h 50m

Melbourne

Wed 25/2

08:35-14:05

1 stop22h 30m

$1,697

HoustonMelbourne

IAH - MEL

IAHMEL

Houston George Bush Intcntl

Mon 9/2

20:05-09:25

1 stop20h 20m

Melbourne

Mon 23/2

10:35-14:05

1 stop20h 30m

$1,697

Flights are sorted by cheapest return flights first.

Deals found on 28/12

Showing 1-10 of 60 results
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Best time to book a flight from Houston

Have a flexible travel schedule? Discover the best time to fly from Houston with our price prediction graph.
Estimated return price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Travel insights for flights from Houston

Get recent, data-driven insights about flights from Houston including ideal travel times, pricing trends, and more.

When is the best time to book a flight from Houston?

Use this chart to determine the optimal time to book a return flight from Houston to Sydney. Price data was last updated on 26 December 2025.

The best time to book flights from Houston is 54 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from Houston?

Currently, December is the cheapest month in which you can book a flight from Houston (average of $665). Flying from Houston in January will prove the most costly (average of $1,260). There are multiple factors that influence the price of a flight so comparing airlines, departure airports and times can help keep costs down.

Which airlines fly from Houston?

When flying from Houston check dates and pricing for the following: Qantas Airways. As it departs for the following popular destinations: Sydney.

Frontier
Frontier
From $130
Qantas Airways
Qantas Airways
From $687
Turkish Airlines
Turkish Airlines
From $1,929

Airline reviews for flights from Houston

Get insights into the airlines that provide service from Houston. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing airline for your flight from Houston. In the last 7 days, Cheapflights users made a total of 647,157 searches.
Read through reviews of airlines serving Houston, such as Qantas Airways. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Qantas Airways
7.5
Good
957 reviews
Check prices

Food

7.0

Boarding

7.7

Overall

7.5

Crew

8.2

Entertainment

7.2

Comfort

7.5

Reviews

1 / 20
10.0
Excellent

Carol,Oct 2025

ADL - MEL

Smooth flight, good onboard staff who were very caring when I didn’t feel very well.
Qantas Airways
7.5
Good
957 reviews
Qantas Airways
7.5
Good
957 reviews
Check prices

Food

7.0

Boarding

7.7

Overall

7.5

Crew

8.2

Entertainment

7.2

Comfort

7.5

Reviews

1 / 20
10.0
Excellent

Carol,Oct 2025

ADL - MEL

Smooth flight, good onboard staff who were very caring when I didn’t feel very well.

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Direct flights from Texas

Book a direct flight from one of these other cities located in Texas.
Direct flights from Austin
Direct flights from San Antonio

Related info for your journey

Access useful and relevant information related to your journey from Houston. This can include details such as airport transportation, visa requirements, travel insurance, luggage regulations, and any other information that can ensure a smooth and hassle-free travel experience. Please note that the information is based on general guidance and may need to be verified with official sources. Data last updated 29 December 2025.

  • Which is the cheapest airport to catch a flight from Houston?

    The cheapest routes to Sydney can be found at Houston George Bush Intcntl airport from $1,196. While Houston Hobby airport is usually cheaper if your destination is Melbourne with prices starting at $1,196. Reference our flight search to find the best deals in real time.

  • What is the cheapest month to fly from Houston?

    Currently, the cheapest month for flights from Houston is December. The most expensive month for flights is January. The cheapest prices are shown above but prices will vary according to departure times, airlines, class and how early you book.

  • Where are the cheapest places to fly to from Houston?

    View the cheapest flight destinations from Houston:
    Fly from Houston to Sydney from $1,196 round trip
    Fly from Houston to Melbourne from $1,411 round trip

  • How does Cheapflights help users find flights from Houston?

    When you search for this flight from Houston, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the best flight for you.

  • Why should you use Cheapflights to find cheap flight tickets from Houston?

    Millions of users choose and trust Cheapflights to book the best flight deals from Houston for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

  • Can Cheapflights find flights from Houston with no change fees?

    Certainly. Search results for flights from Houston shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

  • Can Cheapflights notify me if prices for flights from Houston become cheaper?

    Yes! Start tracking prices for flights from Houston today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive the alerts.

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Fly with Cheapflights

Find the best flight deals on Cheapflights, where travellers can enjoy low prices and a wide availability of flights to their desired destinations.

How does Cheapflights help users find flights from Houston?

When you search for this flight from Houston, Cheapflights searches on 900+ travel sites to save you time finding great flight deals online. Additionally, we offer filter features so you can choose a preferred cabin class or airline, see different price ranges, and much more so you can book the best flight for you.

Why should you use Cheapflights to find cheap flight tickets from Houston?

Millions of users choose and trust Cheapflights to book the best flight deals from Houston for free. We help you search and compare prices from hundreds of airlines for the right flight just for you.

Can Cheapflights find flights from Houston with no change fees?

Certainly. Search results for flights from Houston shown to you on Cheapflights can be narrowed down with different useful search filters, which includes flexible booking options.

Can Cheapflights notify me if prices for flights from Houston become cheaper?

Yes! Start tracking prices for flights from Houston today and get alerted whenever prices for these flights change. To access this feature, click the bell icon next to the flight deals above, which will prompt you for a valid email address to receive the alerts.

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