Historical on-time performance
Atlanta to Boise
1,838 miData through Dec 2025Source: US DOT · BTS
Flights on ATL–BOI arrive on time 78% of the time over the last 12 months.
On-time rate78%arrived within 15 min
p90 delay40 min1 in 10 flights is worse (tail risk)
Cancelled1.2%of scheduled flights
based on 485 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- Delta Air LinesOn-time78%Medianon timep9040 minCancel1.2%Flights485
Why flights run late
Delay causes
- Airline49%
- Weather3%
- Air traffic (NAS)20%
- Late aircraft28%
- Security0%
Most delay minutes here are attributed to Airline.
Over time
On-time trend
By season
On-time rate by month
When to fly
Best time to fly ATL → BOI
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 67% to 87% on time.
- Mornings87% on time · p90 15 min · 349 flights
- Middays86% on time · p90 20 min · 747 flights
- Evenings71% on time · p90 50 min · 93 flights · limited
- Overnights67% on time · p90 55 min · 245 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 74% to 86% on time.
- Tuesdays86% on time · p90 15 min · 170 flights · limited
- Wednesdays85% on time · p90 25 min · 178 flights · limited
- Saturdays85% on time · p90 20 min · 169 flights · limited
- Thursdays84% on time · p90 20 min · 236 flights
- Mondays83% on time · p90 25 min · 204 flights
- Fridays81% on time · p90 25 min · 237 flights
- Sundays74% on time · p90 35 min · 240 flights
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