Sofia to Dortmund: buy now or wait?
Typical one-way fare Sofia→Dortmund: €30 (median of 36 daily lowest fares we tracked); under €26 is a good price; cheapest month: December; book 42–55 days ahead.
Cheaper than 19% of what we have seen
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All fares Sofia → Dortmund
Cheapest first. Every price is live and goes straight to booking.
What the history says
Based on 161 prices we recorded on this exact route, compared against the same departure month.
Best booking window
42–55 days — is when this route has been cheapest to book: €29 typical, on 39 observations. That is about €87 less than booking in the last two weeks.
Cheapest months to fly to Dortmund
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 (103,225 flights on 20,679 routes, 2026-06-14 to 2026-11-07), that window had the smallest average premium over each flight's lowest fare: +16.4%, against +48.9% in the last 3 days.
- How much does a flight in Europe cost?
- €113 one way at the median, across 27,958 routes within Europe (fares observed 2026-06-14 to 2026-11-07). The cheapest countries to fly to were Albania (€58), Malta (€61.5), Italy (€75); the dearest Belarus (€299) and Russia (€290).
- What is the cheapest day of the week to fly?
- Wednesday. Comparing each fare with the median of its own route, Wednesday departures were +3.8% and Tuesday +4.3%, while Friday was the dearest at +10.4%. Weekend departures cost more than midweek ones.
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