Best Time to Fly SEA to IDA: On-Time Stats by Hour & Airline
Seattle/Tacoma International → Idaho Falls Regional
Data through July 2026 · Last updated October 18, 2026
Over the last 12 months, 80.5% of Seattle (SEA) to Idaho Falls (IDA) flights arrived on time (367 scheduled flights). That is 2.9 points above the national average of 77.6%.
SkyWest Airlines was the only reporting airline with regular flights on this route.
Over 24 months, Sunday was the most reliable day (87% on time) and December the worst month (70%).
The cancellation rate was 0.3% (US average 1.8%).
SEA to IDA on-time performance by airline
Last 12 months. Airlines with fewer than 30 completed flights are marked “limited data”.
| Airline | On time | Avg delay when late | Cancelled | Flights |
|---|---|---|---|---|
| SkyWest Airlines | 80.5% | 49 min | 0.3% | 367 |
80%+ good 70–79.9% fair <70% poor
Best time of day to fly SEA to IDA
On-time arrival % by scheduled departure hour (local time), 367 flights over 24 months.
Show the numbers
| Departure hour | On time | Cancelled | Flights |
|---|---|---|---|
| 11am–12pm | 70.0% | 0.0% | 30 |
| 12pm–1pm | 80.2% | 0.0% | 106 |
| 1pm–2pm | 78.4% | 0.0% | 37 |
| 2pm–3pm | Limited data | 14 | |
| 7pm–8pm | 79.2% | 0.0% | 53 |
| 8pm–9pm | 88.7% | 1.6% | 63 |
| 9pm–10pm | 76.2% | 0.0% | 64 |
Best day of the week
24 months, by day of departure.
Best month to fly
24 months, by calendar month.
Holiday travel on SEA to IDA
On-time arrivals during holiday periods compared with all other days, last 24 months.
| Period | On time | vs other days | Cancelled | Flights |
|---|---|---|---|---|
| Thanksgiving week (Tue before to Mon after) | Limited data | 12 | ||
| Christmas & New Year (Dec 20 - Jan 3) | 63.3% | -20.9 pts | 0.0% | 30 |
| Summer peak (Jun 15 - Aug 15) | 76.6% | -7.6 pts | 0.0% | 94 |
| All other days | 84.2% | — | 0.4% | 231 |
Monthly on-time trend
On-time arrival % each month, with the 12-month US average for reference.
What causes delays on this route
Share of reported delay minutes, last 12 months (BTS cause categories).