Helsinki to Seoul: buy now or wait?
Typical one-way fare Helsinki→Seoul: €319 (median of 26 daily lowest fares we tracked); under €271 is a good price; cheapest month: November; book 14–27 days ahead.
Wait FareScore 0/100
€333 Today's best fare
Cheaper than 0% of what we have seen
15 Nov China Southern Airlines With a stop
Free · one email per real drop · unsubscribe in one click
The booking happens on our partner site. The price you see there is the price you pay; they pay us, you do not.
What the history says
Prices recorded 48
Typical price €319
Lowest we saw €316
Based on 48 prices we recorded on this exact route, compared against the same departure month.
Best booking window
14–27 days — is when this route has been cheapest to book: €319 typical, on 14 observations.
Cheapest months to fly to Seoul
November €319 26 observations
October €338 13 observations
December €350 7 observations
Booking tips from our fare data
- How far in advance should you book a flight?
- Book 1–1.5 months before departure. Tracking the same flights at every lead time (97,668 flights on 19,841 routes, 2026-06-14 to 2026-11-05), that window had the smallest average premium over each flight's lowest fare: +16.7%, against +49.3% in the last 3 days.
- What is the cheapest day of the week to fly?
- Wednesday. Comparing each fare with the median of its own route, Wednesday departures were +3.5% and Tuesday +4.3%, while Friday was the dearest at +10.5%. Weekend departures cost more than midweek ones.
- What is the cheapest month to fly?
- November 2026. Comparing each route's fares month by month (booked 8–60 days ahead), November 2026 departures were -1.1% against the route's own median, while January 2027 was the dearest at +22.7%. Covers September 2026, October 2026, November 2026, December 2026, January 2027; fares observed 2026-06-14 to 2026-11-05.
Price drops on Telegram
When a route drops below its usual price we post it to the channel: one message per drop, no spam, leave any time.
Save €200+ on every trip
Five minutes of setup, and it works on every flight after this one.
