$224+ 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 10/3. 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
10 Mar — 17 Mar1
1 adult
1 adult, Economy, 0 bags

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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 8 February 2026.

Wed 18/316:22
IAH
-
SYD
2 stops37h 43m
Multiple Airlines
Wed 25/314:00
SYD
-
IAH
2 stops26h 11m
Multiple Airlines
Deal found 6/2$1,217
Sat 28/216:34
IAH
-
SYD
2 stops27h 01m
Multiple Airlines
Sat 7/314:00
SYD
-
IAH
2 stops27h 30m
Multiple Airlines
Deal found 4/2$1,247
Tue 17/316:22
IAH
-
BNE
1 stop21h 38m
Multiple Airlines
Mon 4/511:55
BNE
-
IAH
2 stops45h 07m
Multiple Airlines
Deal found 6/2$1,265
Tue 17/316:22
IAH
-
SYD
2 stops28h 13m
Multiple Airlines
Tue 24/314:00
SYD
-
IAH
2 stops26h 11m
Multiple Airlines
Deal found 5/2$1,265
Tue 28/409:33
IAH
-
SYD
1 stop30h 57m
Multiple Airlines
Mon 11/513:15
SYD
-
IAH
2 stops43h 47m
Multiple Airlines
Deal found 6/2$1,274
Fri 20/316:04
IAH
-
BNE
1 stop21h 56m
Multiple Airlines
Mon 4/511:55
BNE
-
IAH
2 stops45h 07m
Multiple Airlines
Deal found 6/2$1,291
Wed 29/416:49
IAH
-
SYD
1 stop23h 41m
Multiple Airlines
Wed 13/513:20
SYD
-
IAH
2 stops26h 37m
Multiple Airlines
Deal found 6/2$1,297
Tue 17/316:22
IAH
-
BNE
1 stop21h 38m
Multiple Airlines
Thu 7/511:55
BNE
-
IAH
2 stops45h 07m
Multiple Airlines
Deal found 6/2$1,298
Tue 17/316:22
IAH
-
BNE
1 stop21h 38m
Multiple Airlines
Tue 5/511:35
BNE
-
IAH
2 stops45h 27m
Multiple Airlines
Deal found 6/2$1,299
Wed 18/316:22
IAH
-
BNE
1 stop21h 38m
Multiple Airlines
Wed 6/511:35
BNE
-
IAH
2 stops28h 22m
Multiple Airlines
Deal found 6/2$1,305
Thu 9/416:04
IAH
-
SYD
1 stop24h 26m
Multiple Airlines
Fri 24/406:00
SYD
-
IAH
2 stops51h 02m
Multiple Airlines
Deal found 6/2$1,307
Thu 30/409:33
IAH
-
SYD
1 stop30h 57m
Multiple Airlines
Tue 12/513:15
SYD
-
IAH
2 stops43h 47m
Multiple Airlines
Deal found 6/2$1,308

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 8 February 2026. In the last 7 days, Cheapflights users made a total of 647,157 searches

Fly to

Sydney

Route

Depart

Return

Price

HoustonSydney

IAH - SYD

IAHSYD

Houston George Bush Intcntl

Sat 28/2

16:34-12:35

2 stops27h 01m

Sydney Kingsford Smith

Sat 7/3

14:00-00:30

2 stops27h 30m

$1,247

HoustonBrisbane

IAH - BNE

IAHBNE

Houston George Bush Intcntl

Sat 21/3

16:04-05:00

1 stop21h 56m

Brisbane

Mon 4/5

11:55-18:02

2 stops45h 07m

$1,291

HoustonBrisbane

IAH - BNE

IAHBNE

Houston George Bush Intcntl

Tue 17/3

16:22-05:00

1 stop21h 38m

Brisbane

Thu 7/5

11:55-18:02

2 stops45h 07m

$1,298

HoustonBrisbane

IAH - BNE

IAHBNE

Houston George Bush Intcntl

Fri 20/3

16:04-05:00

1 stop21h 56m

Brisbane

Sun 10/5

11:35-00:57

2 stops28h 22m

$1,358

HoustonBrisbane

IAH - BNE

IAHBNE

Houston George Bush Intcntl

Thu 5/3

17:25-08:45

1 stop23h 20m

Brisbane

Thu 12/3

09:45-21:39

2 stops26h 54m

$1,384

HoustonBrisbane

IAH - BNE

IAHBNE

Houston George Bush Intcntl

Wed 20/5

16:45-07:05

1 stop23h 20m

Brisbane

Sat 30/5

20:40-22:51

3 stops41h 11m

$1,412

HoustonMelbourne

IAH - MEL

IAHMEL

Houston George Bush Intcntl

Mon 13/4

16:04-06:45

1 stop23h 41m

Melbourne

Mon 27/4

13:30-18:02

2 stops43h 32m

$1,428

HoustonBrisbane

IAH - BNE

IAHBNE

Houston George Bush Intcntl

Wed 18/3

17:25-07:45

1 stop23h 20m

Brisbane

Wed 6/5

10:00-15:44

1 stop20h 44m

$1,433

HoustonBrisbane

IAH - BNE

IAHBNE

Houston George Bush Intcntl

Sat 11/4

09:35-07:05

1 stop30h 30m

Brisbane

Sat 2/5

20:40-15:44

2 stops34h 04m

$1,460

HoustonBrisbane

IAH - BNE

IAHBNE

Houston George Bush Intcntl

Fri 29/5

10:00-07:05

2 stops30h 05m

Brisbane

Fri 12/6

10:00-13:39

2 stops42h 39m

$1,465

Flights are sorted by cheapest return flights first.

Deals found on 6/2

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 30 January 2026.

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, May is the cheapest month in which you can book a flight from Houston (average of $590). Flying from Houston in January will prove the most costly (average of $1,205). There are multiple factors that influence the price of a flight so comparing airlines, departure airports and times can help keep costs down.

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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 8 February 2026.

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

    The cheapest routes to Melbourne can be found at Houston Hobby airport from $1,137. While Houston George Bush Intcntl airport is usually cheaper if your destination is Sydney with prices starting at $1,137. 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 May. 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 $1,137 round trip
    Fly from Houston to Melbourne from $1,238 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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