Historical on-time performance
St. Louis to New York
888 miData through May 2026Source: US DOT · BTS
Flights on STL–LGA arrive on time 71% of the time over the last 12 months.
On-time rate71%arrived within 15 min
p90 delay55 min1 in 10 flights is worse (tail risk)
Cancelled4.1%of scheduled flights
based on 2,632 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- Republic AirwaysbestOn-time75%Medianon timep9060 minCancel5.1%Flights1,246
- Southwest AirlinesOn-time68%Medianon timep9050 minCancel3.2%Flights1,386
Why flights run late
Delay causes
- Airline26%
- Weather4%
- Air traffic (NAS)34%
- Late aircraft36%
- Security0%
Most delay minutes here are attributed to Late aircraft.
When flights don't go
Why flights were cancelled
- Airline15%
- Weather49%
- Air traffic (NAS)36%
- Security0%
Most cancellations here are attributed to Weather. Shares are among 108 cancellations with a reported cause (BTS reports causes from June 2003).
Over time
On-time trend
By season
On-time rate by month
When to fly
Best time to fly STL → LGA
All airlines · rolling 36 months (2023-06 .. 2026-05).
Best time of day
Mornings are the most reliable time of day to fly this route — 88% on time.
- Mornings88% on time · p90 10 min · 3,110 flights
- Middays79% on time · p90 35 min · 2,786 flights
- Afternoons71% on time · p90 60 min · 1,767 flights
- Evenings68% on time · p90 60 min · 1,883 flights
- Overnights62% on time · p90 60 min · 317 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 75% to 82% on time.
- Wednesdays82% on time · p90 30 min · 1,562 flights
- Saturdays81% on time · p90 25 min · 726 flights
- Tuesdays79% on time · p90 35 min · 1,562 flights
- Thursdays77% on time · p90 40 min · 1,558 flights
- Mondays76% on time · p90 50 min · 1,558 flights
- Fridays76% on time · p90 40 min · 1,565 flights
- Sundays75% on time · p90 40 min · 1,332 flights
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