George Bush Intercontinental (IAH) to Sydney Kingsford Smith (SYD).
| Departure | Return | Price |
|---|---|---|
| 05/24/2026 | 05/31/2026 | $1006 |
| 05/24/2026 | 06/01/2026 | $1006 |
| 05/24/2026 | 06/02/2026 | $1006 |
| 05/25/2026 | 05/31/2026 | $1006 |
| 05/25/2026 | 06/01/2026 | $1006 |
| 05/25/2026 | 06/02/2026 | $1006 |
| 05/25/2026 | 06/03/2026 | $1006 |
| 05/26/2026 | 05/31/2026 | $1006 |
| 05/26/2026 | 06/01/2026 | $1006 |
| 05/26/2026 | 06/02/2026 | $1006 |
Based on current fares, August is the cheapest month to fly from Houston to Sydney, with average fares around $1019 round trip (as low as $1006).
July tends to be more expensive, averaging $1389.
See the full month-by-month and day-of-week price analysis
Best Time to Fly IAH → SYDDeparture date prices (economy, round trip). Green = cheap, red = expensive.
The cheapest month to fly from Houston to Sydney is August, with average round-trip fares around $1019. Fares in August start as low as $1006. The most expensive month is July, averaging $1389.
A nonstop flight from Houston to Sydney takes approximately 17h.
The cheapest flight from Houston to Sydney currently starts at $1006 round trip in economy class.
The average round-trip flight price from Houston to Sydney is $1280 in economy class.
The distance is 8596 miles (13831 km). with a nonstop flight time of about 17h. The lowest fare currently available is $1006 departing in May. The average round-trip fare is $1280.
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