SEA to IND flight delays & on-time performance
Nonstop flights from Seattle–Tacoma International Airport to Indianapolis International Airport · 1,866 miles · Aug 2025 – Jul 2026
No FAA-reported ground stops or delays at SEA or IND right now. Individual flights can still be delayed by the airline; check with your airline for your flight.
Key facts
- Flights from Seattle (SEA) to Indianapolis (IND) arrived on time 77% of the time in Aug 2025 – Jul 2026, worse than the 78% national average.
- 1.2% were cancelled, and 4% arrived an hour or more late.
- Alaska Airlines is the only airline reporting nonstop flights on this route.
- Departures scheduled around 9am did best (80% on time); around 9pm did worst (73%).
- Wednesday was the most reliable day to fly (82% on time) and Friday the least (72%).
- The largest source of delay minutes was airline (crew, maintenance, cleaning, fueling) (52%).
Which airline is most on time from SEA to IND?
Ranked by on-time arrival rate. Regional airlines fly under their partner's brand (e.g. SkyWest for Delta Connection or United Express).
| Airline | On time | Cancelled | Avg delay | 1 hr+ late | Flights |
|---|---|---|---|---|---|
| Alaska Airlines | 77% | 1.2% | 11 min | 4.1% | 565 |
Best time of day to fly
On-time arrival rate by scheduled departure hour (local time).
- 9am80%52 flights
- 10am78%181 flights
- 11am79%120 flights
- 9pm73%67 flights
- 10pm75%145 flights
Best day of the week
On-time arrival rate by day of departure.
- Monday82%0.0% cancelled
- Tuesday78%0.0% cancelled
- Wednesday82%0.0% cancelled
- Thursday78%1.2% cancelled
- Friday72%3.3% cancelled
- Saturday75%1.4% cancelled
- Sunday74%2.3% cancelled
On-time trend by month
Why flights are late
Share of delay minutes by cause, as reported by airlines to the DOT.
- Airline (crew, maintenance, cleaning, fueling)52%
- Late-arriving aircraft31%
- Air traffic control & airport congestion17%
- Extreme weather0%
- Security0%
Why flights are cancelled
Share of cancellations by reason.
- Airline (crew, maintenance, cleaning, fueling)57%
- Extreme weather43%
- Air traffic control & airport congestion0%
- Security0%
SEA to IND: common questions
- How often are SEA to IND flights on time?
- 77% of flights arrived less than 15 minutes late in Aug 2025 – Jul 2026, compared with 78% for all US flights.
- How often are flights from Seattle to Indianapolis cancelled?
- 1.2% of scheduled flights were cancelled (7 of 565).
- How long are typical delays?
- Across all flights the average arrival delay was 11 min (early arrivals count as zero). Flights that were late arrived 42 min behind schedule on average, and 4.1% of flights were an hour or more late.
- How long is taxi time at SEA?
- Flights on this route spent 21 min taxiing from the gate to takeoff on average.
Related routes
Return trip: IND to SEA — 75% on time
More flights from Seattle
Data: U.S. DOT Bureau of Transportation Statistics, Aug 2025 – Jul 2026 (12 months). Latest month published by BTS: July 2026. Route: SEA → IND, nonstop flights by US airlines that report to the DOT. How we calculate this.