Cheap flights from Chelyabinsk to Kostanay from $520 CEK → KSN
Chelyabinsk International Airport (CEK) → Kostanay Airport (KSN)
The cheapest return found recently is $520 with S7 Airlines, 22 Dec – 19 Jan 2027, found 2 days ago.
- Cheapest return found recently
- $520, 22 Dec to 19 Jan 2027
- Usual return price
- $618 to $828
- Cheapest month to fly
- December 2026, return fares from $520 found in the last 7 days
Return
The cheapest return fare on each of 4 departure dates is usually $618 to $828.
Cheapest return found recently
$520
22 Dec – 19 Jan 2027 · S7 Airlines
Chelyabinsk International Airport (CEK) → Kostanay Airport (KSN)
Leaves 10:55 p.m. · Return leaves 9:00 a.m. · 80 h 35 min of travel, both ways together
out 2 stops, back 2 stops
found 2 days ago
Cheapest nonstop return
None seen yet.
Found recently, and the cheapest we hold
$520 22 Dec – 19 Jan 2027found 2 days agoSee prices for these dates
It is also the cheapest return we hold, of any age.
What have prices looked like?
Over 5 days, 7 Nov to 11 Nov, the cheapest return we saw each day was $520 to $811.
At $520, the cheapest return found recently is at the low end of that range.
5 days is a short history, so treat this range as an early guide.
Those were the prices on those days, not today's.
Is this a good return price?
Compared with the cheapest return fare on each of 4 departure dates from 15 Nov to 24 Dec, found by travelers' searches in the last 7 days (economy, the price the seller showed on Aviasales). The usual range is the middle half of those prices.
Could nearby dates be cheaper?
No. We hold 28-night return fares on 1 other departure date within 3 days of 22 Dec, and it is not cheaper.
Every date we hold
4 fares on 4 departure dates
See the chart as a table
| Dates | From | Airline | Airports | Stops | Found | |
|---|---|---|---|---|---|---|
| 15 Nov – 24 Dec | $877 | Aeroflot | Chelyabinsk International Airport (CEK) → Kostanay Airport (KSN) | out 2 stops, back 2 stops | found 6 days ago | See prices for these dates |
| 11 Dec – 24 Dec | $811 | Rossiya Airlines | Chelyabinsk International Airport (CEK) → Kostanay Airport (KSN) | out 2 stops, back 2 stops | found 6 days ago | See prices for these dates |
| 22 Dec – 19 Jan 2027 | $520 | S7 Airlines | Chelyabinsk International Airport (CEK) → Kostanay Airport (KSN) | out 2 stops, back 2 stops | found 2 days ago | See prices for these dates |
| 24 Dec – 21 Jan 2027 | $651 | Pobeda | Chelyabinsk International Airport (CEK) → Kostanay Airport (KSN) | out 3 stops, back 2 stops | found 2 days ago | See prices for these dates |
Which month looks cheapest?
December 2026 is the cheapest month — from $520.
Airlines on the cheapest dates: Aeroflot, Rossiya Airlines, S7 Airlines, Pobeda.
Premium cabin fares from Chelyabinsk to Kostanay
We hold no premium economy, business or first-class fares for this route: we collect them for the busiest routes, and this one is not among them yet.
Today's prices for 22 Dec – 19 Jan 2027 in another cabin: Premium economy · Business · First
How far ahead were prices cheapest for Chelyabinsk to Kostanay?
Return
Not enough history yet: we have 5 days of return prices, 7 Nov to 11 Nov, and compare booking times once 3 booking ranges have 7 days each.
Live price for these dates
The cheapest return found recently is for 22 Dec – 19 Jan 2027. A live search on this page shows what those dates cost now, for one adult in economy.
Questions about this trip
How much is a return flight from Chelyabinsk to Kostanay?
The cheapest return found recently is $520 with S7 Airlines, 22 Dec to 19 Jan 2027, found 2 days ago. The cheapest return fare on each of 4 departure dates is usually $618 to $828.
What is the cheapest month to fly from Chelyabinsk to Kostanay?
December 2026 is the cheapest month for a return, from $520, 22 Dec to 19 Jan 2027, found 2 days ago.
Which airlines have the cheapest flights from Chelyabinsk to Kostanay?
Between 15 Nov and 24 Dec, Aeroflot has the cheapest return on 1 of the 4 departure dates we hold, Rossiya Airlines on 1 and S7 Airlines on 1.
Prices are what travelers' searches on Aviasales found in the last 7 days, in US dollars: the price the seller showed on Aviasales; bags may cost extra. Fares change, so check today's price before you book. How our prices work