Historical on-time performance
Chicago to Roanoke VA
531 miData through Dec 2025Source: US DOT · BTS
Flights on ORD–ROA arrive on time 70% of the time over the last 12 months.
On-time rate70%arrived within 15 min
p90 delay60 min1 in 10 flights is worse (tail risk)
Cancelled1.6%of scheduled flights
based on 614 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
Too close to call — no single carrier is clearly more on-time here.
- Republic AirwaysOn-time66%Medianon timep9070 minCancel4.1%Flights122
- SkyWest AirlinesOn-time71%Medianon timep9060 minCancel1.0%Flights492
Why flights run late
Delay causes
- Airline36%
- Weather5%
- Air traffic (NAS)17%
- Late aircraft42%
- Security0%
Most delay minutes here are attributed to Late aircraft.
Over time
On-time trend
By season
On-time rate by month
When to fly
Best time to fly ORD → ROA
All airlines · rolling 36 months (2023-01 .. 2025-12).
Best time of day
Middays are the most reliable time of day to fly this route — 83% on time.
- Middays83% on time · p90 25 min · 363 flights
- Afternoons77% on time · p90 40 min · 519 flights
- Evenings76% on time · p90 45 min · 901 flights
- Mornings69% on time · p90 65 min · 188 flights · limited
- Overnights61% on time · p90 100 min · 123 flights · limited
Best day of week
On-time rates are fairly even by day on this route — ranging from 72% to 80% on time.
- Wednesdays80% on time · p90 35 min · 293 flights
- Saturdays79% on time · p90 50 min · 270 flights
- Tuesdays77% on time · p90 40 min · 293 flights
- Mondays77% on time · p90 40 min · 310 flights
- Sundays74% on time · p90 40 min · 310 flights
- Thursdays72% on time · p90 50 min · 307 flights
- Fridays72% on time · p90 50 min · 311 flights
Advertisement
Keep exploring