Historical on-time performance
New York to Des Moines
1,031 miData through Dec 2025Source: US DOT · BTS
Flights on LGA–DSM arrive on time 74% of the time over the last 12 months.
On-time rate74%arrived within 15 min
p90 delay30 min1 in 10 flights is worse (tail risk)
Cancelled2.2%of scheduled flights
based on 92 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- Republic AirwaysOn-time74%Medianon timep9030 minCancel2.2%Flights92
Why flights run late
Delay causes
- Airline36%
- Weather0%
- Air traffic (NAS)33%
- Late aircraft31%
- Security0%
Most delay minutes here are attributed to Airline.
Over time
On-time trend
By season
On-time rate by month
When to fly
Best time to fly LGA → DSM
All airlines · rolling 36 months (2023-01 .. 2025-12).
Best time of day
Mornings are the most reliable time of day to fly this route — 92% on time.
- Mornings92% on time · p90 on time · 120 flights · limited
- Middays82% on time · p90 30 min · 351 flights
- Evenings75% on time · p90 50 min · 1,043 flights
- Afternoons74% on time · p90 55 min · 378 flights
Best day of week
Saturdays are the most reliable day to fly this route — 90% on time.
- Saturdays90% on time · p90 10 min · 105 flights · limited
- Tuesdays80% on time · p90 35 min · 312 flights
- Wednesdays79% on time · p90 40 min · 311 flights
- Thursdays77% on time · p90 35 min · 307 flights
- Mondays76% on time · p90 45 min · 313 flights
- Sundays74% on time · p90 40 min · 256 flights
- Fridays71% on time · p90 70 min · 294 flights
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