Seattle (SEA) to Idaho Falls (IDA) flights
SkyWest Airlines flies nonstop from Seattle-Tacoma International Airport to Idaho Falls Regional Airport, with about 14 flights a week in July 2026. The 566-mile flight takes about 1h 43m gate to gate.
- Distance
- 566 mi · 911 km
- Flight time
- 1h 43m
- Airlines
- 1
- Seats filled
- 81%
Airlines flying SEA to IDA
| Airline | Flights a week | Aircraft | Passengers (12 months) | Flight time |
|---|---|---|---|---|
| SkyWest Airlines | 14 | Embraer E175 | 22,225 | 1h 46m |
| Horizon AirSeasonal or ended | n/a | Embraer E175 | 21,914 | 1h 39m |
Airlines are the operating carrier: regional airlines such as SkyWest or Horizon often fly under a larger airline's brand.
SEA to IDA flight schedule
4 flight numbers flew this route in August 2026. The first usually leaves at 12:28pm and the last at 8:05pm. Times are local and can change; check with the airline before you book.
| Flight | Departs | Arrives | Days flown in August 2026 | On time (12 months) |
|---|---|---|---|---|
| AS 3026Alaska Airlines · operated by SkyWest Airlines | 12:28pm | 3:20pm | 13 | 84% |
| AS 3490Alaska Airlines · operated by SkyWest Airlines | 12:45pm | 3:37pm | 18 | 69% |
| AS 3423Alaska Airlines · operated by SkyWest Airlines | 7:50pm | 10:39pm | 17 | 68% |
| AS 3424Alaska Airlines · operated by SkyWest Airlines | 8:05pm | 10:56pm | 13 | 92% |
Is SEA to IDA on time?
From September 2025 to August 2026, 81% of 721 flights arrived within 15 minutes of schedule and 0.4% were cancelled. Flights leaving around 8pm were the most punctual (89%), those around 7pm the least (73%). Most delay time was caused by late-arriving aircraft (52%).
| Airline | Flights | On time | Average delay | Cancelled |
|---|---|---|---|---|
| Alaska Airlines | 721 | 81% | 10 min | 0.4% |
Airlines as sold: flights operated by regional partners count under the airline on the ticket. Average delay is across all completed flights, early arrivals counted as zero.
On-time arrivals by departure time
| Scheduled departure | Flights | On time, relative | On time |
|---|---|---|---|
| 11am to 12pm | 30 | 70% | |
| 12pm to 1pm | 213 | 84% | |
| 1pm to 2pm | 71 | 80% | |
| 3pm to 4pm | 36 | 86% | |
| 7pm to 8pm | 146 | 73% | |
| 8pm to 9pm | 146 | 89% | |
| 9pm to 10pm | 65 | 77% |
Flights by month
| Month | Flights | Flights, relative | Passengers |
|---|---|---|---|
| August 2025 | 62 | 4,197 | |
| September 2025 | 60 | 4,067 | |
| October 2025 | 62 | 3,792 | |
| November 2025 | 58 | 3,312 | |
| December 2025 | 54 | 3,312 | |
| January 2026 | 62 | 3,490 | |
| February 2026 | 55 | 3,207 | |
| March 2026 | 59 | 3,413 | |
| April 2026 | 60 | 3,647 | |
| May 2026 | 62 | 3,861 | |
| June 2026 | 60 | 3,961 | |
| July 2026 | 62 | 3,880 |
Related
Source: US Department of Transportation, T-100 Segment data, August 2025 to July 2026.