Seoul to Tokyo: buy now or wait?
Typical one-way fare Seoul→Tokyo: €74 (median of 45 daily lowest fares we tracked); under €63 is a good price; cheapest month: September; book 0–13 days ahead.
Cheaper than 56% of what we have seen
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All fares Seoul → Tokyo
Cheapest first. Every price is live and goes straight to booking.
What the history says
Based on 618 prices we recorded on this exact route, compared against the same departure month.
Best booking window
0–13 days — is when this route has been cheapest to book: €75 typical, on 52 observations.
Cheapest months to fly to Tokyo
Booking tips from our fare data
- How far in advance should you book a flight?
- Book 1.5–2 months before departure. Tracking the same flights at every lead time (105,470 flights on 20,996 routes, 2026-06-14 to 2026-11-08), that window had the smallest average premium over each flight's lowest fare: +16.4%, against +48.8% in the last 3 days.
- Are last-minute flights cheaper?
- No. In the last 3 days before departure the same flight cost on average 48.8% more than its cheapest observed fare. Comparing 32,181 flights seen both 3–4 weeks and under a week out, the late fare was higher 67% of the time (median +9.7%).
- Are domestic flights cheaper than international flights?
- Yes. The median one-way fare on a domestic route was €119, against €159 for international flights within the same continent and €268 for intercontinental ones (78,251 routes, fares observed 2026-06-14 to 2026-11-08).
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