OnTimeStats

Airport on-time performance

DSM

Des Moines

Data through Dec 2025Source: US DOT · BTS
On-time rate78%flights departing here that arrived on time
Median delayon timetypical departure delay
p90 delay40 min1 in 10 departures is worsetail risk
Cancelled2.2%of scheduled departures
Left the gate on time82%departures that pushed back within 15 min of schedule (DepDel15)

based on 14,746 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).

As a connection hub

Arriving here (inbound performance)

These figures reflect inbound flights arriving at this airport — relevant for connections and layovers.

74%arrived on time here
(within 15 min, inbound flights)
  • On time74%
  • 15–59 min late15%
  • 1–2 hr late5%
  • 2 hr+ late4%
  • Cancelled or diverted2%

Arrival outcomes for inbound flights. Last segment = cancelled or diverted.

Bad day: 1 in 10 flights arrives more than 50 min late.

By airline

Carriers departing here (last 12 months)

Delay = arrival delay (ArrDel15-based)

  • Southwest Airlinesbest
    On-time86%
    Medianon time
    p9020 min
    Cancel0.8%
    Flights1,625
  • Delta Air Lines
    On-time85%
    Medianon time
    p9025 min
    Cancel1.4%
    Flights1,249
  • Envoy Air
    On-time81%
    Medianon time
    p9030 min
    Cancel2.4%
    Flights797
  • SkyWest Airlines
    On-time78%
    Medianon time
    p9050 min
    Cancel2.1%
    Flights2,058
  • PSA Airlines
    On-time75%
    Medianon time
    p9040 min
    Cancel5.5%
    Flights824
  • United Airlines
    On-time75%
    Medianon time
    p9045 min
    Cancel1.2%
    Flights1,894
  • Republic Airways
    On-time75%
    Medianon time
    p9050 min
    Cancel3.3%
    Flights784
  • American Airlines
    On-time72%
    Medianon time
    p9065 min
    Cancel3.1%
    Flights1,946
  • Allegiant Air
    On-time68%
    Medianon time
    p9070 min
    Cancel4.6%
    Flights65

Over time

Departure on-time trend

By season

On-time rate by month

Where flights go

Busiest routes

DSM → ORD→DSM → DFW→DSM → DEN→DSM → ATL→DSM → MSP→DSM → PHX→DSM → STL→DSM → IAH→DSM → DTW→DSM → CVG→
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Will you make a connection at DSM? →

Methodology

A flight is on time when it arrives within 15 minutes of schedule — the US DOT / BTS standard. Median and p90(the “1-in-10 bad day”) are read from the full arrival-delay distribution, never averaged across periods.

Figures cover a carrier’s own BTS-coded flights. Cells below ~200 flights are flagged as limited data. All numbers are pre-computed from public BTS On-Time Performance data.