Historical on-time performance
Chicago to Buffalo
468 miData through Dec 2025Source: US DOT · BTS
Flights on MDW–BUF arrive on time 73% of the time over the last 12 months.
On-time rate73%arrived within 15 min
p90 delay40 min1 in 10 flights is worse (tail risk)
Cancelled1.1%of scheduled flights
based on 702 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- Southwest AirlinesOn-time73%Medianon timep9040 minCancel1.1%Flights702
Why flights run late
Delay causes
- Airline37%
- Weather3%
- Air traffic (NAS)11%
- Late aircraft49%
- 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 MDW → BUF
All airlines · rolling 36 months (2023-01 .. 2025-12).
Best time of day
On-time rates are fairly even by time of day on this route — ranging from 54% to 85% on time.
- Mornings85% on time · p90 20 min · 496 flights
- Middays83% on time · p90 20 min · 678 flights
- Afternoons66% on time · p90 45 min · 306 flights
- Evenings65% on time · p90 50 min · 634 flights
- Overnights54% on time · p90 75 min · 338 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 66% to 77% on time.
- Wednesdays77% on time · p90 30 min · 382 flights
- Tuesdays77% on time · p90 30 min · 382 flights
- Saturdays73% on time · p90 35 min · 205 flights
- Thursdays72% on time · p90 40 min · 391 flights
- Mondays70% on time · p90 45 min · 392 flights
- Fridays70% on time · p90 45 min · 392 flights
- Sundays66% on time · p90 50 min · 308 flights
Advertisement
Keep exploring