Historical on-time performance
Grand Rapids to Atlanta
640 miData through May 2026Source: US DOT · BTS
Flights on GRR–ATL arrive on time 85% of the time over the last 12 months.
On-time rate85%arrived within 15 min
p90 delay20 min1 in 10 flights is worse (tail risk)
Cancelled1.4%of scheduled flights
based on 1,383 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- Delta Air LinesOn-time85%Medianon timep9020 minCancel1.4%Flights1,383
Why flights run late
Delay causes
- Airline54%
- Weather5%
- Air traffic (NAS)19%
- Late aircraft22%
- Security0%
Most delay minutes here are attributed to Airline.
When flights don't go
Why flights were cancelled
- Airline63%
- Weather37%
- Air traffic (NAS)0%
- Security0%
Most cancellations here are attributed to Airline. Shares are among 19 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 GRR → ATL
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 15 min · 1,584 flights
- Middays85% on time · p90 20 min · 1,090 flights
- Afternoons84% on time · p90 20 min · 585 flights
- Evenings84% on time · p90 25 min · 942 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 81% to 89% on time.
- Wednesdays89% on time · p90 15 min · 592 flights
- Saturdays87% on time · p90 15 min · 488 flights
- Thursdays87% on time · p90 20 min · 652 flights
- Tuesdays87% on time · p90 20 min · 612 flights
- Mondays86% on time · p90 20 min · 608 flights
- Fridays85% on time · p90 20 min · 609 flights
- Sundays81% on time · p90 30 min · 646 flights
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