Route brief · TYO → SEL
Tokyo → Seoul
$151
−38% vs typical
seasonal median $245 · difference $94
Sep 9 – Sep 10 · 1 night
T'way AirNonstop
- Usual monthly lows
- $214–$270
- Board rank
- Stronger than 87%
- Route sample
- 8 observed months
Cached fare — the booking search re-prices live before you pay.
Destination briefSELSeoulPalaces wedged between skyscrapers, barbecue smoke at midnight, cafés that outnumber people.Best windowApr–May · Sep–OctAirportsIncheon (ICN) · Gimpo (GMP)All routes into SeoulWhen this route gets cheap.
Cached-fare history: across 8 months, Sep is the cheapest for TYO → SEL. Best time to be there: Apr–May · Sep–Oct.
Fares bottom out in September around $144 and peak in August near $459 — a $315 spread across the 8 months we track. The cheapest itinerary we are tracking flies T'way Air nonstop and takes about 2.5 hours outbound, on a 1-night trip. At $151 for 1,149 km each way, that works out to about $66 per 1,000 km flown. That is above the $41 typical of short-haul fares here.
Cheapest day in the next 3 months: Sep 1 · $157 (38% below median)
Tap any day → live search
The median cached fare across this calendar is 4% higher than when tracking began on Aug 8 — $257 then versus $267 now, across 5 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 $156, on Sep 1.
September 2026
October 2026
Cheapest in Sep · around $144
41% below the $245 typical fare
Cheapest round-trip fare found per month · Tokyo → Seoul · cached-price history
Route facts
- Airports
- Narita (NRT) · Haneda (HND) ↔ Incheon (ICN) · Gimpo (GMP)
- Flight time
- ~2.5 hours outbound
- Distance
- ~1,149 km each way
- Typical price
- $245 round-trip (seasonal median)
- Airlines on the board
- T'way Air
- Itineraries
- Nonstop available
- Best months to visit
- Apr–May · Sep–Oct
TYO → SEL, answered.
Is $151 a good price for Tokyo to Seoul?
Yes — the seasonal median for this route is around $245 round-trip. At $151 you're 38% below that, saving about $94, which we rate great for this route.
What is the cheapest month to fly from Tokyo to Seoul?
Across 8 months of cached-fare history, Sep comes out cheapest on this route. The best months to actually be in Seoul are Apr–May · Sep–Oct — when those overlap, that's your window.
How far in advance should I book TYO → Seoul?
We do not publish a number for this, because we cannot measure it yet.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 Tokyo to Seoul?
Yes — the current board includes nonstop fares (T'way Air). The outbound leg runs around 2.5 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 Seoul?
Lock the flight first — then compare stays for Sep 9 – Sep 10 · 1 night.
Browse hotels ↗
Missed it?
Cached fares expire. This route has a feed of its own — follow it and the next TYO → SEL drop reaches you as soon as we find it.
Follow TYO → SEL