Historical on-time performance
Springfield to Chicago
438 miData through May 2026Source: US DOT · BTS
Flights on SGF–ORD arrive on time 70% of the time over the last 12 months.
On-time rate70%arrived within 15 min
p90 delay70 min1 in 10 flights is worse (tail risk)
Cancelled1.8%of scheduled flights
based on 1,368 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- Envoy AirbestOn-time73%Medianon timep9060 minCancel1.5%Flights1,086
- SkyWest AirlinesOn-time56%Median5 minp90100 minCancel3.2%Flights282
Why flights run late
Delay causes
- Airline27%
- Weather11%
- Air traffic (NAS)25%
- Late aircraft37%
- Security0%
Most delay minutes here are attributed to Late aircraft.
When flights don't go
Why flights were cancelled
- Airline4%
- Weather72%
- Air traffic (NAS)24%
- Security0%
Most cancellations here are attributed to Weather. Shares are among 25 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 SGF → ORD
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 — 81% on time.
- Mornings81% on time · p90 45 min · 1,778 flights
- Middays74% on time · p90 55 min · 1,251 flights
- Afternoons71% on time · p90 90 min · 936 flights
- Evenings59% on time · p90 85 min · 728 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 69% to 79% on time.
- Saturdays79% on time · p90 40 min · 601 flights
- Tuesdays77% on time · p90 60 min · 626 flights
- Thursdays74% on time · p90 65 min · 705 flights
- Fridays73% on time · p90 70 min · 711 flights
- Wednesdays72% on time · p90 55 min · 665 flights
- Mondays72% on time · p90 65 min · 706 flights
- Sundays69% on time · p90 85 min · 680 flights
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