Allegiant Air is the most reliable airline on the GRR to PDX route with a 92% on-time rate. Based on 26 flights tracked.
Source: Bureau of Transportation Statistics. Updated October 2026.Best Airline: GRR to PDX
Grand Rapids to Portland — airline reliability comparison
On-Time Rate by Airline
Allegiant Air92%
GRR to PDX Airline Comparison
| Airline | On-Time % | Cancel % | Avg Delay | Flights |
|---|---|---|---|---|
| Allegiant AirG4Best | 92% | 0.0% | 19m | 26 |
Route Overview
92%
Overall On-Time
19m
Avg Delay
0%
Cancel Rate
26
Total Flights
Flying out of GRR? 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.