Route brief · HOU → HAN
Houston → Hanoi
$1,447
round-trip · too little price history on this route to compare
Jun 12 '27 – Jul 11 '27 · 29 nights
United2 stops
Cached fare — the booking search re-prices live before you pay.
Destination briefHANHanoiOld-quarter alleys, motorbike tides and the country’s best food — and Ha Long Bay two hours out.Best windowOct–Nov · Mar–AprAirportsNoi Bai (HAN)All routes into HanoiWhen this route gets cheap.
Best time to be in Hanoi: Oct–Nov · Mar–Apr. Fare history for this route is still thin, so we make no seasonal call yet.
The cheapest itinerary we are tracking makes 2 stops and takes about 21.5 hours outbound, on a 29-night trip — ticketed under United, which on a connecting fare need not operate every leg. At $1,447 for 13,928 km each way, that works out to about $52 per 1,000 km flown. That is above the $40 typical of ultra-long-haul fares here. Across the 12 departure cities we track at a similar distance from Hanoi, this fare ranks 10th — 3.5× the $417 we hold from San Francisco. For context, the middle fare among the 30 routes of similar length we watch out of Houston is $1,061. 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.
The one day we hold a cached fare for
Tap a date → live search
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.
Route facts
- Airports
- Bush (IAH) · Hobby (HOU) ↔ Noi Bai (HAN)
- Flight time
- ~21.5 hours outbound
- Distance
- ~13,928 km each way
- Airlines on the board
- United
- Itineraries
- Connections on current fares
- Best months to visit
- Oct–Nov · Mar–Apr
HOU → HAN, answered.
How far in advance should I book HOU → Hanoi?
We do not publish a number for this, because we cannot measure it yet.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. See /guides/what-moves-a-flight-price/ for the levers we can measure.
Are there nonstop flights from Houston to Hanoi?
The current cheapest fares involve a connection, ticketed under United. Nonstop options exist on many dates at higher prices — check the live search for your exact dates.
Are these prices guaranteed?
No — these are cached fares found on real searches (this one on September 1). 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 Hanoi?
Lock the flight first — then compare stays for Jun 12 '27 – Jul 11 '27 · 29 nights.
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Missed it?
Cached fares expire. This route has a feed of its own — follow it and the next HOU → HAN drop reaches you as soon as we find it.
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