Route brief · BOS → TYO
Boston → Tokyo
$810
−31% vs typical
seasonal median $1,175 · difference $365
Sep 16 – Sep 23 · 7 nights
Air Canada1 stop
- Usual monthly lows
- $895–$1,174
- Board rank
- Stronger than 80%
- Route sample
- 4 observed months
Cached fare — the booking search re-prices live before you pay.
Destination briefTYOTokyoNeon canyons, 3am ramen, and the world’s most polite chaos. The yen is kind to visitors right now.Best windowMar–May · Oct–NovAirportsNarita (NRT) · Haneda (HND)All routes into TokyoWhen this route gets cheap.
Cached-fare history: across 4 months, Sep is the cheapest for BOS → TYO. Best time to be there: Mar–May · Oct–Nov.
Fares bottom out in September around $810 and peak in December near $1,983 — a $1,173 spread across the 4 months we track. The cheapest itinerary we are tracking makes one stop and takes about 15 hours outbound, on a 7-night trip — ticketed under Air Canada, which on a connecting fare need not operate every leg. At $810 for 10,794 km each way, that works out to about $38 per 1,000 km flown. That is below the $44 typical of long-haul fares here. Across the 31 departure cities we track at a similar distance from Tokyo, this fare ranks 21st — 1.9× the $434 we hold from New York. That puts it in the cheaper half of the 21 routes of similar length we watch out of Boston, where the middle fare is $952.
The 3 days we hold a cached fare for
Tap a date → live search
The median cached fare across this calendar is 33% lower than when tracking began on Aug 8 — $1,301 then versus $877 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 $870, on Sep 7.
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 $810
31% below the $1,175 typical fare
Cheapest round-trip fare found per month · Boston → Tokyo · cached-price history
Route facts
- Airports
- Logan (BOS) ↔ Narita (NRT) · Haneda (HND)
- Flight time
- ~15 hours outbound
- Distance
- ~10,794 km each way
- Typical price
- $1,175 round-trip (seasonal median)
- Airlines on the board
- Air Canada
- Itineraries
- Connections on current fares
- Best months to visit
- Mar–May · Oct–Nov
BOS → TYO, answered.
Is $810 a good price for Boston to Tokyo?
Yes — the seasonal median for this route is around $1,175 round-trip. At $810 you're 31% below that, saving about $365, which we rate great for this route.
What is the cheapest month to fly from Boston to Tokyo?
Across 4 months of cached-fare history, Sep comes out cheapest on this route. The best months to actually be in Tokyo are Mar–May · Oct–Nov — when those overlap, that's your window.
How far in advance should I book BOS → Tokyo?
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 4 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 Boston to Tokyo?
The current cheapest fares involve a connection, ticketed under Air Canada. 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 Tokyo?
Lock the flight first — then compare stays for Sep 16 – Sep 23 · 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 → TYO drop reaches you as soon as we find it.
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