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$163+ 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 16/9. 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.
HOU — SYD
18 Aug — 25 Aug1
1 adult

What to know about flights from Houston

Discover essential information about flights departing from Houston, including flight schedules, destinations, airlines operating at the Houston airport, and any specific guidelines or requirements for travellers. Please note that the information is based on the most recent updates available. Data last updated 13 August 2025.

Cheapest airline

United Airlines
On average, United Airlines currently has the cheapest one-way flight from Houston (avg. price of $3,836).
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Find flights from Houston

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 13 August 2025.

Tue 23/907:10IAH - SYD
2 stops37h 35mMultiple Airlines
Tue 30/906:00SYD - IAH
2 stops31h 26mMultiple Airlines
Deal found 12/8$1,371
Sun 7/907:10IAH - SYD
2 stops48h 00mMultiple Airlines
Tue 30/913:15SYD - IAH
2 stops30h 15mMultiple Airlines
Deal found 11/8$1,388
Wed 27/808:00IAH - SYD
2 stops36h 45mMultiple Airlines
Tue 2/913:15SYD - IAH
2 stops30h 45mMultiple Airlines
Deal found 12/8$1,466
Mon 27/1014:33IAH - SYD
2 stops50h 02mAir Canada
Sun 9/1111:20SYD - IAH
2 stops43h 04mAir Canada
Deal found 11/8$1,504
Mon 6/1014:23IAH - SYD
2 stops25h 42mAmerican Airlines
Sun 19/1010:10SYD - IAH
2 stops23h 03mAmerican Airlines
Deal found 12/8$1,517
Tue 16/921:55IAH - SYD
1 stop19h 50mAir New Zealand
Tue 30/908:55SYD - IAH
1 stop21h 20mAir New Zealand
Deal found 11/8$1,527
Wed 10/921:55IAH - SYD
1 stop19h 50mAir New Zealand
Wed 24/911:50SYD - IAH
1 stop19h 25mAir New Zealand
Deal found 12/8$1,529
Mon 6/1020:10IAH - SYD
1 stop19h 55mAmerican Airlines
Mon 20/1010:10SYD - IAH
1 stop22h 48mAmerican Airlines
Deal found 12/8$1,530
Mon 27/1016:20IAH - SYD
2 stops24h 25mAir New Zealand
Sun 9/1109:55SYD - IAH
1 stop21h 10mAir New Zealand
Deal found 11/8$1,533
Mon 26/116:24HOU - SYD
2 stops23h 36mAmerican Airlines
Sun 8/211:15SYD - HOU
2 stops21h 41mAmerican Airlines
Deal found 12/8$1,537
Mon 3/1116:25HOU - SYD
2 stops23h 35mAmerican Airlines
Sun 16/1111:15SYD - HOU
2 stops21h 39mAmerican Airlines
Deal found 12/8$1,537
Mon 10/1116:25HOU - SYD
2 stops23h 35mAmerican Airlines
Mon 24/1111:15SYD - HOU
2 stops21h 39mAmerican Airlines
Deal found 12/8$1,537

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 13 August 2025. In the last 7 days, Cheapflights users made a total of 647,157 searches

Fly to

Sydney

Route

Depart

Return

Price

HoustonSydney

HOU - SYD

HOUSYD

Houston Hobby

Mon 26/1

16:24-09:00

2 stops23h 36m

Sydney Kingsford Smith

Sun 8/2

11:15-15:56

2 stops21h 41m

$1,537

HoustonSydney

HOU - SYD

HOUSYD

Houston Hobby

Mon 3/11

16:25-09:00

2 stops23h 35m

Sydney Kingsford Smith

Sun 16/11

11:15-15:54

2 stops21h 39m

$1,537

HoustonSydney

HOU - SYD

HOUSYD

Houston Hobby

Mon 10/11

16:25-09:00

2 stops23h 35m

Sydney Kingsford Smith

Mon 24/11

11:15-15:54

2 stops21h 39m

$1,537

HoustonSydney

HOU - SYD

HOUSYD

Houston Hobby

Mon 2/2

16:24-09:00

2 stops23h 36m

Sydney Kingsford Smith

Sun 15/2

11:15-15:52

2 stops21h 37m

$1,537

HoustonSydney

HOU - SYD

HOUSYD

Houston Hobby

Mon 27/10

18:11-09:00

2 stops22h 49m

Sydney Kingsford Smith

Sun 9/11

11:15-15:54

2 stops21h 39m

$1,537

HoustonSydney

HOU - SYD

HOUSYD

Houston Hobby

Mon 24/11

16:25-09:00

2 stops23h 35m

Sydney Kingsford Smith

Sun 7/12

11:15-16:07

2 stops21h 52m

$1,537

HoustonSydney

HOU - SYD

HOUSYD

Houston Hobby

Mon 10/11

16:25-09:00

2 stops23h 35m

Sydney Kingsford Smith

Sun 23/11

11:15-15:54

2 stops21h 39m

$1,537

HoustonMelbourne

IAH - MEL

IAHMEL

Houston George Bush Intcntl

Sun 14/9

16:30-10:50

2 stops27h 20m

Melbourne

Tue 30/9

07:35-21:37

2 stops29h 02m

$1,553

HoustonBrisbane

IAH - BNE

IAHBNE

Houston George Bush Intcntl

Wed 5/11

20:05-09:55

1 stop21h 50m

Brisbane

Sun 23/11

08:10-14:05

1 stop21h 55m

$1,564

HoustonMelbourne

IAH - MEL

IAHMEL

Houston George Bush Intcntl

Tue 9/9

16:30-10:50

2 stops27h 20m

Melbourne

Tue 30/9

07:35-15:15

1 stop22h 40m

$1,566

Flights are sorted by cheapest return flights first.

Deals found on 12/8

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 8 August 2025.

The best time to book flights from Houston is 46 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, September is the cheapest month in which you can book a flight from Houston (average of $907). Flying from Houston in December will prove the most costly (average of $1,352). 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: United Airlines, Qantas Airways. As they depart for the following popular destinations: Sydney.

United Airlines
United Airlines
From $1,330
Qantas Airways
Qantas Airways
From $462
Spirit Airlines
Spirit Airlines
From $86
Frontier
Frontier
From $87

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 and United Airlines. 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
893 reviews
Check prices

Crew

8.2

Entertainment

7.2

Overall

7.5

Boarding

7.7

Comfort

7.4

Food

6.9

Reviews

1 / 20
2.0
Mediocre

Anonymous,July 2025

MEL - SYD

Flight cancelled 2hours before take off after checking in. Booked by airline on flight 6 hours later. No compensation or vouchers till we asked just before the flight took off.
Qantas Airways
7.5
Good
893 reviews
Qantas Airways
7.5
Good
893 reviews
Check prices

Crew

8.2

Entertainment

7.2

Overall

7.5

Boarding

7.7

Comfort

7.4

Food

6.9

Reviews

1 / 20
2.0
Mediocre

Anonymous,July 2025

MEL - SYD

Flight cancelled 2hours before take off after checking in. Booked by airline on flight 6 hours later. No compensation or vouchers till we asked just before the flight took off.
United Airlines
7.4
Good
8,920 reviews
Qantas Airways
7.5
Good
893 reviews
Check prices

Crew

8.2

Entertainment

7.2

Overall

7.5

Boarding

7.7

Comfort

7.4

Food

6.9

Reviews

1 / 20
2.0
Mediocre

Anonymous,July 2025

MEL - SYD

Flight cancelled 2hours before take off after checking in. Booked by airline on flight 6 hours later. No compensation or vouchers till we asked just before the flight took off.

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Direct flights from Texas

Book a direct flight from one of these other cities located in Texas.
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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 13 August 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 $1,335. While Houston Hobby airport is usually cheaper if your destination is Perth with prices starting at $1,335. 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 September. The most expensive month for flights is December. 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 $1,335 round trip
    Fly from Houston to Perth from $1,966 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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