Historical on-time performance
Washington to Indianapolis
476 miData through May 2026Source: US DOT · BTS
Flights on IAD–IND arrive on time 82% of the time over the last 12 months.
On-time rate82%arrived within 15 min
p90 delay35 min1 in 10 flights is worse (tail risk)
Cancelled1.1%of scheduled flights
based on 973 flights over the last 12 months. On-time means arriving within 15 minutes (BTS standard).
By airline
How each carrier compares
- Republic AirwaysOn-time82%Medianon timep9035 minCancel1.1%Flights973
Why flights run late
Delay causes
- Airline51%
- Weather3%
- Air traffic (NAS)10%
- Late aircraft35%
- Security0%
Most delay minutes here are attributed to Airline.
When flights don't go
Why flights were cancelled
- Airline0%
- Weather55%
- Air traffic (NAS)45%
- Security0%
Most cancellations here are attributed to Weather. Shares are among 11 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 IAD → IND
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 — 92% on time.
- Mornings92% on time · p90 10 min · 1,064 flights
- Middays88% on time · p90 15 min · 1,079 flights
- Evenings80% on time · p90 40 min · 924 flights
- Overnights78% on time · p90 45 min · 421 flights
Best day of week
On-time rates are fairly even by day on this route — ranging from 82% to 87% on time.
- Wednesdays87% on time · p90 20 min · 506 flights
- Tuesdays87% on time · p90 20 min · 503 flights
- Mondays86% on time · p90 20 min · 513 flights
- Saturdays86% on time · p90 25 min · 501 flights
- Sundays85% on time · p90 15 min · 514 flights
- Thursdays85% on time · p90 20 min · 515 flights
- Fridays82% on time · p90 30 min · 520 flights
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