Route brief · HKG → HAN
Hong Kong → Hanoi
$182
−13% vs typical
seasonal median $210 · difference $28
Sep 15 – Sep 22 · 7 nights
HK ExpressNonstop
- Usual monthly lows
- $184–$241
- Board rank
- Stronger than 31%
- Route sample
- 8 observed months
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.
Cached-fare history: across 8 months, Sep is the cheapest for HKG → HAN. Best time to be there: Oct–Nov · Mar–Apr.
Fares bottom out in September around $182 and peak in June near $277 — a $95 spread across the 8 months we track. The cheapest itinerary we are tracking flies HK Express nonstop and takes about 2 hours outbound, on a 7-night trip. At $182 for 873 km each way, that works out to about $104 per 1,000 km flown. That is above the $41 typical of short-haul fares here. Across the 3 departure cities we track at a similar distance from Hanoi, this fare ranks 3rd — 28% above the $142 from Bangkok.
The 6 days we hold a cached fare for
Tap a date → live search
The median cached fare across this calendar is 8% higher than when tracking began on Aug 8 — $197 then versus $213 now, across 7 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 $178, on Sep 21.
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.
Cheapest in Sep · around $182
13% below the $210 typical fare
Cheapest round-trip fare found per month · Hong Kong → Hanoi · cached-price history
Route facts
- Airports
- Hong Kong (HKG) ↔ Noi Bai (HAN)
- Flight time
- ~2 hours outbound
- Distance
- ~873 km each way
- Typical price
- $210 round-trip (seasonal median)
- Airlines on the board
- HK Express
- Itineraries
- Nonstop available
- Best months to visit
- Oct–Nov · Mar–Apr
HKG → HAN, answered.
Is $182 a good price for Hong Kong to Hanoi?
Only slightly. The seasonal median is around $210 round-trip and this fare is 13% under it, about $28. We do not call a drop notable until 20%, so this is an ordinary price for the route rather than a reason to hurry.
What is the cheapest month to fly from Hong Kong to Hanoi?
Across 8 months of cached-fare history, Sep comes out cheapest on this route. The best months to actually be in Hanoi are Oct–Nov · Mar–Apr — when those overlap, that's your window.
How far in advance should I book HKG → 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. What we can measure is which month is cheap: across 8 months of cached fares, Sep comes out lowest on this route. See /guides/what-moves-a-flight-price/ for what does move a fare.
Are there nonstop flights from Hong Kong to Hanoi?
Yes — the current board includes nonstop fares (HK Express). The outbound leg runs around 2 hours.
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 Sep 15 – Sep 22 · 7 nights.
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Missed it?
Cached fares expire. This route has a feed of its own — follow it and the next HKG → HAN drop reaches you as soon as we find it.
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