Rare1 stop · 12h
SYD to HANVietnam
Hanoi
$484
usually $885
−45%
Most monthly lows $487–$885. Cheaper than every other month on record (3).
Flights · SYD → HOU
Sydney to Houston
Best fare, round trip
$1,524
Too little price history on this route to compare — the fare is shown as found.
Found
- Depart
- Thu 24 Dec
- Return
- Wed 20 Jan
- Stay
- 27 nights
- Flight
- 1 stop · 19h
- Airline
Air Canada
Cached fare — the booking search re-prices live before you pay.
United StatesHoustonUnited’s Latin America gateway, the best Vietnamese food in the country, and NASA on the edge of town.Best windowMar–May · Oct–NovAirportsBush (IAH) · Hobby (HOU)Every route into HoustonFare seasonality
When this route gets cheap.
The cheapest itinerary we are tracking makes one stop and takes about 19 hours outbound, on a 27-night trip — ticketed under Air Canada, which on a connecting fare need not operate every leg. At $1,524 for 13,818 km each way, that works out to about $55 per 1,000 km flown. That is above the $42 per 1,000 km typical of ultra-long-haul fares here. Across the 9 departure cities we track at a similar distance from Houston, this fare ranks 9th — 1.8× the $868 we hold from Bangkok. For context, the middle fare among the 43 routes of similar length we watch out of Sydney is $1,319. We have 1 month of cached prices for this route so far — not enough to call a fare cheap or expensive, so we publish the price without a percentage. Fare history here is still too short to name a cheap season. The best time to be in Houston: Mar–May · Oct–Nov.
The 8 days we hold a cached fare for
Press a date to compare its fares
The median cached fare across this calendar is 27% higher than when tracking began on 8 Aug — $1,365 then versus $1,734 now, across 4 recorded snapshots. This is a calendar-level trend, so an individual deal above can be lower. The lowest single day we have seen here is $1,109, on 14 Jan '27.
- Wed 16 Dec$1,754
- Thu 17 Dec$1,955
- Tue 22 Dec$1,880
- Wed 23 Dec$1,713
- Thu 24 Dec$1,524
- Fri 25 Dec$1,645
- Sat 26 Dec$2,032
- Thu 14 Jan$1,109lowest
These are the only days we have a cached price for on this route so far — not the only days it flies. The search above covers any date.
Cached fares · checked 10 Oct 2026
We are still collecting this route's months — 1 month of cached prices so far, too few to chart.
Route facts
- Airports
- Kingsford Smith (SYD) ↔ Bush (IAH) · Hobby (HOU)
- Flight time
- ≈19 hours outbound
- Distance
- ≈13,818 km each way
- Airlines on the board
- Air Canada
- Itineraries
- Connections on current fares
- Best months to visit
- Mar–May · Oct–Nov
Good to know
SYD → HOU, answered.
How far in advance should I book SYD → Houston?
We do not publish a number for this, because we cannot measure it yet. Answering it honestly means watching the same departure date on this route over many weeks as it approaches, and that archive is still filling up — so any "book N days ahead" figure here would be borrowed from somewhere else rather than measured. Our guide Why flight prices change covers the levers we can measure.
Are there nonstop flights from Sydney to Houston?
The current cheapest fares involve a connection, ticketed under Air Canada. We hold no nonstop fare on this route right now, which does not mean none flies — search your exact dates to see what does.
Are these prices guaranteed?
No — these are cached fares found on real searches (this one on 12 October). Airlines reprice constantly, so the booking search re-checks the live price before you pay. Fresher finds are far more likely to still be available.
Next step
Sleeping in Houston?
Lock the flight first — then compare stays for 24 Dec – 20 Jan '27 · 27 nights.
Browse hotelsMissed it?
Cached fares expire. This route has a feed of its own — follow it and the next SYD → HOU drop reaches you as soon as we find it.
Follow this route’s feedKeep browsing
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