Route brief · LON → TYO
London → Tokyo
$642
−13% vs typical
seasonal median $735 · difference $93
Sep 12 – Sep 27 · 15 nights
China Southern1 stop
- Usual monthly lows
- $687–$763
- Board rank
- Stronger than 31%
- Route sample
- 10 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 10 months, Sep is the cheapest for LON → TYO. Best time to be there: Mar–May · Oct–Nov.
Fares bottom out in September around $642 and peak in July near $1,134 — a $492 spread across the 10 months we track. The cheapest itinerary we are tracking makes one stop and takes about 16.5 hours outbound, on a 15-night trip — ticketed under China Southern, which on a connecting fare need not operate every leg. At $642 for 9,559 km each way, that works out to about $34 per 1,000 km flown. That is below the $44 typical of long-haul fares here. Across the 33 departure cities we track at a similar distance from Tokyo, this fare ranks 9th — 48% above the $434 from New York. That puts it in the cheaper half of the 36 routes of similar length we watch out of London, where the middle fare is $670.
Cheapest day in the next 3 months: Sep 12 · $642 (31% below median)
Tap any day → live search
The median cached fare across this calendar is 1% lower than when tracking began on Aug 8 — $903 then versus $898 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 $642, on Sep 12.
October 2026
Cheapest in Sep · around $642
13% below the $735 typical fare
Cheapest round-trip fare found per month · London → Tokyo · cached-price history
Route facts
- Airports
- Heathrow (LHR) · Gatwick (LGW) · Stansted (STN) · Luton (LTN) ↔ Narita (NRT) · Haneda (HND)
- Flight time
- ~16.5 hours outbound
- Distance
- ~9,559 km each way
- Typical price
- $735 round-trip (seasonal median)
- Airlines on the board
- China Southern
- Itineraries
- Connections on current fares
- Best months to visit
- Mar–May · Oct–Nov
LON → TYO, answered.
Is $642 a good price for London to Tokyo?
Only slightly. The seasonal median is around $735 round-trip and this fare is 13% under it, about $93. 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 London to Tokyo?
Across 10 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 LON → 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 10 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 London to Tokyo?
The current cheapest fares involve a connection, ticketed under China Southern. 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 12 – Sep 27 · 15 nights.
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Missed it?
Cached fares expire. This route has a feed of its own — follow it and the next LON → TYO drop reaches you as soon as we find it.
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