Houston (IAH) → Sydney (SYD)
George Bush Intercontinental Airport to Sydney Kingsford Smith International Airport · 7,471 nm (13,836 km) · about 16.5 h nonstop
Cheapest economy fares, checked daily · 38 days of history · live business class search links
Booking links are plain searches — none are affiliate links, and the site earns nothing if you book. Prices are the cheapest fares other travellers recently found, not live availability — always confirm the fare before you pay.
Economy
last checked 19h agoCathay Pacific · 2 stops · 34h 48m · travel Nov 27 · sold via Farehutz
When it's cheapest to travel
Travel dates of the cheapest fare found at each of our 44 daily checks — where the low fares were, not every date.
| Sep 2026 | $789 | 4× |
| Oct 2026 | $650 | 3× |
| Nov 2026 | $526 | 34× |
| Jan 2027 | $857 | 3× |
| Fricheapest | $526 | 6× |
| Wed | $668 | 24× |
| Tue | $691 | 10× |
| Mon | $857 | 3× |
| Checked | Fare | Airline | Stops | Travel | Sold via | |
|---|---|---|---|---|---|---|
| 2026-10-23 | $526 | Cathay Pacific | 2 stops | Nov 27 | Farehutz | Book ↗ |
| 2026-10-23 | $526 | Cathay Pacific | 2 stops | Nov 27 | Farehutz | Book ↗ |
| 2026-10-22 | $526 | Cathay Pacific | 2 stops | Nov 27 | Farehutz | Book ↗ |
| 2026-10-22 | $526 | Cathay Pacific | 2 stops | Nov 27 | Farehutz | Book ↗ |
| 2026-10-21 | $526 | Cathay Pacific | 2 stops | Nov 27 | Farehutz | Book ↗ |
| 2026-10-20 | $526 | Cathay Pacific | 2 stops | Nov 27 | Farehutz | Book ↗ |
| 2026-10-19 | $714 | Frontier Airlines | 1 stop | Nov 11 | Aviakassa | Book ↗ |
| 2026-10-19 | $714 | Frontier Airlines | 1 stop | Nov 11 | — | Book ↗ |
| 2026-10-18 | $714 | Frontier Airlines | 1 stop | Nov 11 | — | Book ↗ |
| 2026-10-17 | $714 | Frontier Airlines | 1 stop | Nov 11 | — | Book ↗ |
| 2026-10-16 | $714 | Frontier Airlines | 1 stop | Nov 11 | — | Book ↗ |
| 2026-10-15 | $647 | Frontier Airlines | 2 stops | Nov 11 | — | Book ↗ |
Business class
We don't quote business class fares on this route: our fare source prices economy only, and we would rather show no number than a wrong one. These open a live business class search for IAH → SYD:
Airlines selling the cheapest fares
Which carrier had the lowest fare on each of our checks over the last 90 days.
- Frontier Airlines ×29
- American Airlines ×6
- Cathay Pacific ×6
- Turkish Airlines ×3
Notable flights on this route
- UA29 United Airlines — Houston to Sydney, one of United's longest transpacific hauls.
About this route
Houston (IAH) to Sydney (SYD) is one of the long-haul trunk routes behind our notable flights, flown daily by competing carriers. Flown by UA29. It links George Bush Intercontinental Airport in United States with Sydney Kingsford Smith International Airport in Australia. The great-circle distance is about 7,471 nautical miles (8,599 statute miles), so expect roughly 16.5 hours in the air nonstop.
Every night we ask our fare provider for the cheapest one-way economy fare other travellers recently found on this route and record it, with the airline and the seller it was found with. A fare is flagged as a deal when it falls at least 30% below the route's 90-day typical price. Prices are a research starting point, not live availability — the booking links open the itinerary so you can confirm what's on sale right now. business class fares aren't priced by our provider, so that section links to live searches instead.
Fares are approximate, from public sources, and can be stale — always verify before booking.