Route brief · BOS → HKG
Boston → Hong Kong
$682
round-trip · too little price history on this route to compare
Feb 28 '27 – Mar 7 '27 · 7 nights
Hainan Airlines1 stop
Cached fare — the booking search re-prices live before you pay.
Destination briefHKGHong KongVertical, humid and relentless — and the cheapest place in Asia to catch a connecting fare somewhere else.Best windowOct–DecAirportsHong Kong (HKG)All routes into Hong KongWhen this route gets cheap.
Best time to be in Hong Kong: Oct–Dec. Fare history for this route is still thin, so we make no seasonal call yet.
The cheapest itinerary we are tracking makes one stop and takes about 20.5 hours outbound, on a 7-night trip — ticketed under Hainan Airlines, which on a connecting fare need not operate every leg. At $682 for 12,803 km each way, that works out to about $27 per 1,000 km flown. That is well under the $40 that ultra-long-haul fares on this board typically run. Across the 17 departure cities we track at a similar distance from Hong Kong, this fare ranks 8th — 56% above the $437 from London. It is also the cheapest of the 27 routes of similar length we watch out of Boston. We have 2 months 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
The median cached fare across this calendar is 4% lower than when tracking began on Aug 8 — $1,119 then versus $1,074 now, across 3 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 $1,074, on Sep 1.
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
- Logan (BOS) ↔ Hong Kong (HKG)
- Flight time
- ~20.5 hours outbound
- Distance
- ~12,803 km each way
- Airlines on the board
- Hainan Airlines
- Itineraries
- Connections on current fares
- Best months to visit
- Oct–Dec
BOS → HKG, answered.
How far in advance should I book BOS → Hong Kong?
We do not publish a number for this, because we cannot measure it yet.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 Boston to Hong Kong?
The current cheapest fares involve a connection, ticketed under Hainan Airlines. 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 August 30). 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 Hong Kong?
Lock the flight first — then compare stays for Feb 28 '27 – Mar 7 '27 · 7 nights.
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Missed it?
Cached fares expire. This route has a feed of its own — follow it and the next BOS → HKG drop reaches you as soon as we find it.
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