Historical on-time performance
Seattle to Indianapolis
1,866 miData through Dec 2025Source: US DOT · BTS
Flights on SEA–IND arrive on time 67% of the time over the last 12 months.
On-time rate67%arrived within 15 min
p90 delay40 min1 in 10 flights is worse (tail risk)
Cancelled0.8%of scheduled flights
based on 491 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- Alaska AirlinesOn-time67%Medianon timep9040 minCancel0.8%Flights491
Why flights run late
Delay causes
- Airline36%
- Weather0%
- Air traffic (NAS)23%
- Late aircraft41%
- 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 SEA → IND
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 72% to 79% on time.
- Mornings79% on time · p90 30 min · 66 flights · limited
- Overnights72% on time · p90 35 min · 543 flights
- Middays72% on time · p90 35 min · 1,006 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 67% to 78% on time.
- Tuesdays78% on time · p90 30 min · 209 flights
- Wednesdays77% on time · p90 25 min · 229 flights
- Thursdays75% on time · p90 30 min · 246 flights
- Mondays73% on time · p90 45 min · 237 flights
- Fridays70% on time · p90 45 min · 250 flights
- Saturdays67% on time · p90 45 min · 210 flights
- Sundays67% on time · p90 40 min · 248 flights
Advertisement
Keep exploring