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St Petersburg skyline — flights from Constantine from €334, cheapest in October

Constantine to St Petersburg: buy now or wait?

Typical one-way fare Constantine→St Petersburg: €296 (median of 34 daily lowest fares we tracked); under €251 is a good price; cheapest month: October; book 56–83 days ahead.

Wait FareScore 9/100
€334 Today's best fare

Cheaper than 9% of what we have seen

18 Nov Air Algerie With a stop

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All fares Constantine → St Petersburg

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What the history says

Prices recorded 197
Typical price €296
Lowest we saw €246

Based on 197 prices we recorded on this exact route, compared against the same departure month.

Best booking window

56–83 days — is when this route has been cheapest to book: €246 typical, on 21 observations. That is about €44 less than booking in the last two weeks.

Cheapest months to fly to St Petersburg

October €291 82 observations
November €315 115 observations

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.
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 -1.3% against the route's own median, while January 2027 was the dearest at +22.8%. Covers September 2026, October 2026, November 2026, December 2026, January 2027; fares observed 2026-06-14 to 2026-11-10.
Are flights getting more expensive?
Not right now. The Piratefly monthly Fare Index stands at 98.5 in 2026-11 (month in progress), against 100 in 2026-08: comparable flights are 1.5% cheaper than then, measured on the same routes month to month.

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