Prague to Irkutsk: buy now or wait?
Typical one-way fare Prague→Irkutsk: €335 (median of 23 daily lowest fares we tracked); under €285 is a good price; cheapest month: December; book 28–41 days ahead.
Cheaper than 26% of what we have seen
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All fares Prague → Irkutsk
Cheapest first. Every price is live and goes straight to booking.
What the history says
Based on 58 prices we recorded on this exact route, compared against the same departure month.
Best booking window
28–41 days — is when this route has been cheapest to book: €335 typical, on 20 observations. That is about €59 less than booking in the last two weeks.
Cheapest months to fly to Irkutsk
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 (110,945 flights on 21,717 routes, 2026-06-14 to 2026-11-10), that window had the smallest average premium over each flight's lowest fare: +16.3%, against +48.8% in the last 3 days.
- Is it cheaper to book flights months in advance?
- Not much. Booking 2–3 months ahead cost on average 21% more than the same flight's lowest fare, more than at 1.5–2 months (+16.3%). On 29,800 flights seen both 2–3 months and 3–4 weeks out, the early fare was higher 44.8% of the time: a coin toss.
- Are domestic flights cheaper than international flights?
- Yes. The median one-way fare on a domestic route was €121.25, against €160 for international flights within the same continent and €269 for intercontinental ones (79,553 routes, fares observed 2026-06-14 to 2026-11-10).
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