Historical on-time performance
Miami to Grand Rapids
1,214 miData through Dec 2025Source: US DOT · BTS
Flights on MIA–GRR arrive on time 48% of the time over the last 12 months.
On-time rate48%arrived within 15 min
p90 delay110 min1 in 10 flights is worse (tail risk)
Cancelled3.2%of scheduled flights
based on 31 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- American AirlinesOn-time48%Median10 minp90110 minCancel3.2%Flights31
Why flights run late
Delay causes
- Airline18%
- Weather0%
- Air traffic (NAS)4%
- Late aircraft78%
- 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 MIA → GRR
All airlines · rolling 36 months (2023-01 .. 2025-12).
Best time of day
Overnights are the most reliable time of day to fly this route — 78% on time.
- Overnights78% on time · p90 35 min · 338 flights
- Evenings56% on time · p90 165 min · 66 flights · limited
Best day of week
On-time rates are fairly even by day on this route — ranging from 65% to 83% on time.
- Fridays83% on time · p90 25 min · 60 flights · limited
- Wednesdays83% on time · p90 25 min · 63 flights · limited
- Tuesdays76% on time · p90 25 min · 63 flights · limited
- Mondays73% on time · p90 35 min · 62 flights · limited
- Thursdays72% on time · p90 60 min · 60 flights · limited
- Saturdays66% on time · p90 50 min · 74 flights · limited
- Sundays65% on time · p90 60 min · 62 flights · limited
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