DELAY ANALYSIS

Out of 49,235 completed flights, 2,394 departed more than 15 minutes late. None of them recovered the lost time in the air. Sundays, Fridays and Wednesdays run the highest daily rates, and the hottest single windows are the 18:00-20:00 evening departures at 7.2%. The Airbus A321-200 leads delay frequency at 5.9%, nearly double the A319-100. The pattern is clear: congestion at high-traffic hours plus tight turnaround scheduling leaves zero margin for recovery.

0.0%
Overall delay rate
of 49,235 completed flights
0
Delayed flights
departed more than 15 min late
0.0%
Worst route delay %
Voronezh → Pulkovo
0.0%
Delay recovery rate
no delayed flight made up time in the air

Delay Heatmap

Percentage of flights delayed >15 min by hour and day of week

The brightest cells are evening departures: Wednesday and Sunday at 18:00-20:00 peak at 7.2%, and no window of the week drops much below 3% — the network never fully relaxes.

9:0010:0011:0012:0013:0014:0015:0016:0017:0018:0019:0020:00MONTUEWEDTHUFRISATSUN
2.3%7.2%share of flights delayed >15 min
Peak: SUN 20:00 · 7.2%

Delay Rate by Aircraft Type

The A321-200 runs late on 5.9% of departures, the A319-100 on 3.9% — the narrow-body workhorses sit at both ends of the ranking.

Delay Rate by Distance

From short hops to 5,600 km crossings the rate barely moves (4.3–5.1%): congestion drives lateness, not route length.

Top 20 Most Delayed Routes

Routes with >50 flights

Voronezh–St. Petersburg tops the list: 1 in 9 flights late, and when they are late it averages more than three hours.

FromToFlightsDelayedDelay %Avg Delay
Voronezh International AirportPulkovo Airport901011.1%191 min
Koltsovo AirportSurgut Airport911011.0%198 min
Domodedovo International AirportKazan International Airport911011.0%193 min
Sheremetyevo International AirportUytash Airport911011.0%202 min
Cheboksary AirportSheremetyevo International Airport911011.0%192 min
Kurumoch International AirportSochi International Airport911011.0%191 min
Sheremetyevo International AirportPobedilovo Airport911011.0%192 min
Domodedovo International AirportBelgorod International Airport90910.0%189 min
Petrozavodsk AirportDomodedovo International Airport90910.0%185 min
Uray AirportDomodedovo International Airport90910.0%197 min
Chelyabinsk Balandino AirportVolgograd International Airport90910.0%176 min
Khrabrovo AirportDomodedovo International Airport90910.0%189 min
Syktyvkar AirportDomodedovo International Airport9199.9%196 min
Kurumoch International AirportKursk East Airport9199.9%198 min
Bolshoye Savino AirportChelyabinsk Balandino Airport9199.9%194 min
Domodedovo International AirportKhrabrovo Airport9199.9%211 min
Sheremetyevo International AirportKhrabrovo Airport9199.9%193 min
Roshchino International AirportPulkovo Airport9199.9%214 min
Domodedovo International AirportUlyanovsk Baratayevka Airport9088.9%198 min
Domodedovo International AirportKhabarovsk-Novy Airport9088.9%180 min
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