Alaska Airlines is the most reliable airline on the IND to SEA route with a 78% on-time rate. Based on 1,954 flights tracked.
Source: Bureau of Transportation Statistics. Updated October 2026.Best Airline: IND to SEA
Indianapolis to Seattle — airline reliability comparison
On-Time Rate by Airline
Alaska Airlines78%
IND to SEA Airline Comparison
| Airline | On-Time % | Cancel % | Avg Delay | Flights |
|---|---|---|---|---|
| Alaska AirlinesASBest | 78% | 1.7% | 53m | 1,954 |
Route Overview
77%
Overall On-Time
54m
Avg Delay
1.3%
Cancel Rate
1,954
Total Flights
Flying out of IND? We'll brief you.
Delays, TSA, weather, gates — we'll let you know if something matters.
Data last updated October 2026. Source: Bureau of Transportation Statistics.