The cheapest Tallinn to Tokyo Haneda return flight on the radar right now is €627, flying with Scandinavian Airlines via one or more connections. It covers departures in December 2026, and every dated link below opens that exact TLL–HND search on Skyscanner. That is roughly 15% below the €742 this route usually costs. Across 88 recorded checks it has ranged between €627 and €896. Our sampling points to December 2026 as the cheapest month to fly Tallinn to Tokyo Haneda.
Prices are re-checked against Skyscanner automatically, and every one shows when it was last confirmed, so nothing here is older than it looks. Not flying from Tallinn? We track 62 other departure cities for Tokyo Haneda, listed at the foot of this page.
Prices like this tend to vanish fast. If it has gone when you look, try the days either side of the dates above, since Tallinn to Tokyo Haneda is often still worth booking within a day or two of the fare we found.