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 and business class fares, checked daily · 1 day of history
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 5m agoFrontier Airlines · 2 stops · 56h 11m · travel Oct 3
| Checked | Fare | Airline | Stops | Travel | |
|---|---|---|---|---|---|
| 2026-09-09 | $780 | Frontier Airlines | 2 stops | Oct 3 | Book ↗ |
Business class
last checked 5m agoFrontier Airlines · 2 stops · 56h 11m · travel Oct 3
| Checked | Fare | Airline | Stops | Travel | |
|---|---|---|---|---|---|
| 2026-09-09 | $780 | Frontier Airlines | 2 stops | Oct 3 | Book ↗ |
Airlines selling the cheapest fares
Which carrier had the lowest fare on each of our checks over the last 90 days.
- Frontier Airlines ×2
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 and business class fare other travellers recently found on this route and record it. 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.
Fares are approximate, from public sources, and can be stale — always verify before booking.